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HP LaserJet Pro Color MFP M476 Troubleshooting

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2. 6 ACE OVErVIEW aras 6 PML arreen e aa R ES 6 Control panel E ii a is 6 jid 6 Engine control system corr a and 7 DC controller eiie totae toner eene pee reete A T EE t eed ste 8 Power SUPPLY econ M 9 Protective function 9 Power Saving Gadir iii 10 F set conttol REE Eee ee vau ees ente aL ee a eei pe seed Een Ne CERE ERR 10 Fuser control circuit sees sesesses see een ense tn entr ntn ettet th tnnt 11 Fuser protective function esee see eeee eene en nennen tnn nnns 12 ENWW Fuser failure detection errnovornnvvrnrnnvnnnnnvvnnnnvnnnrnnvnnnnnnvennnvnnsvnnvnnnnnnesunnvene 13 High voltage power supply eese eese eese eee eene nnne nnn nene non senes tenete nna 14 Lis SAME RETE T NO A 15 Laser fail re detection oorr rro ii tdi iii 15 Image formation Systeim on aE svedoudaaacassebovas api sddaadsevsesioldsveieteesiacidadosisstadede 16 Image formation process sscsscessesscessesssessecsceseecsesseecoessaesaeessesssessesscessecsecseecsessseseesseeseesssessess 16 equ 16 Latent image formation stage cconoccnocuoonoonnoonnonnonnnonconnonnnornnnnnnn cnn nnno non nnnnn coca non nennt nana
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4. Item Description 1 High voltage power supply PCA 2 Formatter 3 Sub power supply PCA 4 Fax PCA 5 DC controller PCA 6 Connector PCA 7 Driver PCA 8 Wireless PCA 54 Chapter2 Solve problems ENWW Optional 250 sheet cassette Figure 2 7 Optional 250 sheet cassette Table 2 6 Optional 250 sheet cassette Item Description 1 Paper feeder pickup assembly 2 Paper feeder connector PCA 3 Paper feeder separation roller 4 Paper feeder pickup roller ENWW Tools for troubleshooting 55 hart iming c Diagrams General t Approximate timing in seconds seq sjaqys usemjag Selg JU selg JejsueJ JepU0285 49 seig 19jsue Areuud 9 W Seq 1ejsueJ Ajeuiug A seq 1ejsueJ feud 48 seg Buidoje eq 9 W A seig Buidoje eg selg Buibieyo Hewud dOL reubis 35vd JO dOL 845 10sues JaAl ap Jasny bes Josuas uonensibes 18 p10uajos jueujeBeBuesip Buidoje eq 2718 prouajos dnyoid ayasseg ZW 1030 Jauueos mus SIN Joyow dn old ZW 10 0w Buidojanag A TT ee OL LLLI 3 E EA E A ste AA FEN 2 8 Timing diagram spuooes 11UN eyeuuxoudde ay si Mojaq UMOUS euin eu SJON m m ENWW Chapter2 Solve problems 56 t diagram ircui C Figure 2 9 Circuit diagram Diagrams Woinp paa xejdng 219 piouops asionai xong 9 e Yd 1eAup xajdng I sour CISA C dd
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6. sssccscssscsscsssssscessesscessesscessecsecseecsessseseesseeseesassssesseesasesseeseecssenseessessecsesssecneesess 16 Figure 1 10 Image formation process c ccssssssessesssessessessecoesssecaecssesaeessessecsssesecssesseesseseecsseaeecnsessecaesaaesaessaeseeseeaseas 17 Figure 1 11 Primary charging A 17 Fig re 1 12 Laser beam expose etc eene ta deg tetto baths ERR indi i 18 Figure 1 13 TT DPI e 18 Figure 1 14 A 19 Figure 1 15 Secondary transfer senectt dando cano o nantes entren aci oat Cohen esa cea are etate Rea RS UR ERR ica 19 Figure 1 16 Separation from the drum leise eee eeeeeee eene nn sene th sens th seas nn seras sss assassins stairs sess sense sas sa setas na 20 aH AMMII ta 20 Figure 1 18 ITB cleaning e ect epe ne nni cn aene sace etes Cod ee aS nee A ich un cnn nnn aa RU EE SR TER Rug 21 Figure 1 19 Drum Cleaning 00 id 22 Figure 1 20 Pickup and feed system sssccssessecsscssecsscessesssessesssessecssessessecsseceesoeeseesseeseesasessecaeseseeaseeseesseseesssensesnesaes 23 Figure 1 21 Multiple feed prevention ccsccssecscssssssecssessscessesscessessecsseseeceseseecnseseecaesseesaeeseessecssesaesessesesessecsseseessesees 26 Figure 1 22 ADF paper path eie teer dit 31 Figure 1 23 AA 32 Figure 2 1 Control panel 2ndary Service test access buttons eie eese ntn nennen senes nnne tes nns 45 Figure
7. 112 Chapter2 Solve problems ENWW e Printand interpret the print quality page e Cleanthe product e Visually inspect the toner cartridge e Check paper and the printing environment e Calibrate the product to align the colors e Check other print job settings e Tryadifferent print driver Print from a different software program Try printing from a different software program If the page prints correctly the problem is with the software program from which you were printing Check the paper type setting for the print job Check the paper type setting when printing from a software program and the printed pages have smears fuzzy or dark print curled paper scattered dots of toner loose toner or small areas of missing toner Check the paper type setting Windows 1 From the software program select the Print option 2 Selectthe product and then click the Properties or Preferences button 3 Click the Paper Quality tab 4 From the Paper Type drop down list click the More option 5 Expandthe list of Type is options 6 Expandthe category of paper types that best describes your paper 7 Selectthe option for the type of paper you are using and click the OK button 8 Click the OK button to close the Document Properties dialog box In the Print dialog box click the OK button to print the job Check the paper type setting Mac OS X 1 Clickthe File menu and then click the Print option
8. Solve image quality problems 117 If the entire page is too dark use these settings Select the 600 dpi option Select the EconoMode check box to enable it If the entire page is too light use these settings Select the FastRes 1200 option Clear the EconoMode check box to disable it Click the OK button to close the Document Properties dialog box In the Print dialog click the OK button to print the job Adjust color settings Windows Follow these steps if colors on the printed page to not match colors on the computer screen or if the colors on the printed page are not satisfactory Change the color theme 1 From the software program select the Print option 2 Selectthe product and then click the Properties or Preferences button 3 Clickthe Color tab 4 Select the HP EasyColor check box to clear it 5 Selectacolor theme from the Color Themes drop down list e Default SRGB This theme sets the product to print RGB data in raw device mode When using this theme manage color in the software program or in the operating system for correct rendering e X Vivid SRGB The product increases the color saturation in the midtones Use this theme when printing business graphics e Photo sRGB The product interprets RGB color as if it were printed as a photograph using a digital mini lab The product renders deeper more saturated colors differently than with the Default sRBG theme Use this theme when printing phot
9. Fax pages that are stored in flash memory are persistent They are not lost as a result of a power failure no matter how long the power is off Users can reprint faxes in case the print cartridge runs out of toner or the product experiences other errors while printing faxes The product also has scan ahead functionality that makes use of flash memory Scan ahead automatically scans pages into flash memory before a fax job is sent This allows the sender to pick up the original document immediately after it is scanned eliminating the need to wait until the fax is transmission is complete Because fax pages are stored in flash memory rather than RAM more RAM is available to handle larger and more complicated copy and print jobs ENWW Fax functions and operation 37 USB flash drive This product features printing from a USB flash drive This product supports printing the following types of files from the USB flash drive e PDF e RGBJPEG When a USB flash drive is inserted into the front of the product the control panel will display the USB Flash Drive menu The files present on the USB flash drive can be accessed from the control panel using the touch screen Any RGB jpeg or pdf files on the USB flash drive can be printed directly from the product control panel Pages also can be scanned and saved to the USB flash drive from the control panel 38 Chapter1 Theory of operation ENWW 2 Solve problems Ex NOTE To perform diagnos
10. Problem Print is light or faded Cause The paper might not meet HP specifications Solution Use paper that meets HP specifications The toner cartridge might be defective or low Replace the toner cartridge Aa Cc If you use a non HP toner cartridge no i i messages appear on the product control panel If the toner cartridge is not low or empty Aa Cc inspect the toner roller to see if the roller is Aa Cc damaged If it is replace the toner cartridge Aa Cc If the whole page is light the print density Adjust the print density and disable Aa Cc dg is too light or EconoMode might be EconoMode in the print driver turned on Toner specks appear The paper might not meet HP specifications Use paper that meets HP specifications AaBbGc AQBBOC AaBbCc AaBbCc AGBbCc The paper path might need cleaning Clean the paper path 120 Chapter 2 Solve problems ENWW ENWW Table 2 21 General print quality issues continued Problem Dropouts appear AaBbCc AGBbCc AagbCc AaBbCc AaBoCc Cause Asingle sheet of paper might be defective Solution Try reprinting the job The moisture content of the paper is uneven or the paper has moist spots on its surface The paper lot is flawed The manufacturing processes can cause some areas to reject toner Try different paper such as high quality paper that is intended for laser printers
11. RM1 8045 000CN 79 Error Turn off then on ENWW Description The product has experienced an internal firmware error Under most conditions the product automatically restarts Recommended action 1 Reset the printer a Turn off the power by using the power switch and then wait at least 30 seconds b Turnonthe power and wait for the product to initialize 2 Ifyou are using a surge protector Tools for troubleshooting 85 a Power off the printer b Remove the surge protector c Plug the product directly into the wall socket and turn the product power on 3 Ifthe error is intermittent attempt to isolate the issue to something specific in the customers environment NOTE If the 79 Error is caused by the network or a specific file do not replace the formatter it will not resolve the issue Instead attempt to isolate the issue in a way that demonstrates the error is caused by something in the environment 4 Ifthe error is persistent replace the Formatter PCA e Formatter PCA M476 nw HP Part CF385 60001 e Formatter PCA M476 dn HP Part CF386 60002 e Formatter PCA M476 dw HP Part CF387 60004 e Formatter PCA M476 nw CHINA ONLY HP Part CF385 60002 e Formatter PCA M476 dn CHINA ONLY HP Part CF386 60003 e Formatter PCA M476 dw CHINA ONLY HP Part CF387 60005 Device is busy Try again later Description The product is currently in use Recommended action 1 Wait for the produ
12. Sub menu item Wireless Direct Settings Description Manage the product s wireless direct settings Wireless Setup Wizard Guides you through the steps to set up the product on a wireless network Wi Fi Protected Setup If your wireless router supports this feature use this method to set up the product on a wireless network This is the simplest method Run Wireless Test Tests the wireless network and prints a report with the results Turn Wireless On Off Enables or disables the wireless network feature TCP IP Config Automatic Manual IPv4 Config Method DHCP DHCP The product automatically configures all the TCP IP settings via DHCP BootP BootP The product automatically configures all the TCP IP Auto IP settings via BootP Manual Auto IP The product automatically configures all the TCP IP settings via Auto IP Manual You can manually configure the IP address subnet mask and default gateway The control panel prompts you to specify values for each address section As each address is completed the product prompts for address confirmation before moving to the next one After all three addresses are set the network reinitializes Network Services IPv4 Enable or disable the IPv4 and IPv6 protocols By default each protocol is enabled IPv6 Link Speed Automatic Sets the link speed manually if needed 10T Full After setting the link speed the product automatically restarts 10T Half 100TX
13. Table 2 18 Event log messages continued Event code Description 50 1000 Low fuser temperature error 50 2000 Slow fuser error 50 3000 High fuser temperature error 50 4000 Fuser drive circuit error 50 7000 Fuser open error 50 8000 Low sub thermistor fuser error 50 9000 High sub thermistor fuser error 51 2000 Black scanner laser error inline devices only 51 2100 Cyan scanner laser error inline devices only 51 2200 Magenta scanner laser error inline devices only 51 2300 Yellow scanner laser error inline devices only 54 0100 Environmental sensor error 54 0600 Density sensor error 54 1100 Black density out of range 54 1101 Cyan density out of range 54 1102 Magenta density out of range 54 1103 Yellow density out of range 54 1200 Black density measurement abnormality 54 1201 Cyan density measurement abnormality 54 1202 Magenta density measurement abnormality 54 1203 Yellow density measurement abnormality 54 1400 Color plane registration sensor error inline devices only 54 1599 Black CPR pattern cannot be read 54 1501 Cyan CPR pattern cannot be read 54 1502 Magenta CPR pattern cannot be read 54 1503 Yellow CPR pattern cannot be read 54 1500 Yellow toner level sensor error 54 1600 Magenta toner level sensor error 54 1700 Cyan toner level sensor error 54 1800 Black toner level sensor error 54 1900 Bad top of page TOP sensor 54 2
14. lt Normal feed gt lt Multiple feed gt Chapter 1 Theory of operation ENWW Scanning and image capture system The flatbed image scanner captures an electronic image of the document on the glass The scanner does this by illuminating the document with LEDs red green and blue and capturing the image in the image sensor to create an electronic format of the document The flatbed scanner consists of three main elements CIS scanner The CIS contact image sensor scanner captures an image using the product s optical path Red green and blue LEDs sequentially illuminate a small strip of the document often called a raster line and the optical system captures each color in a single row of CCD sensors that cover the entire page width Because only one color is captured for each line per exposure the three colors are recombined electronically to create the full color image For monochromatic scans or copies all three LEDs are illuminated to create a white light for the scan so the raster line can be captured in one exposure Mechanical drive system The drive system moves the CIS scanner along the document length to create the image In this product the drive system consists of a small DC motor with an optical encoder a drive belt and a guide rod The speed of the drive system is proportional to the scan resolution 300 ppi is much faster than 1200 ppi and also proportional to the type of scan color scans are slower than monochromatic s
15. t Primary transfer pad j ICLB ICLR 2 ITB cleaning unit N Secondary 7 Y transfer roller c E rov ITB cleaning brush ITB cleaning roller Secondary transfer Primary transfer bias circuit bias circuit bias circuit bias circuit 1 DC controller 14 Chapter1 Theory of operation ENWW Laser scanner system The formatter sends video signals to the DC controller which controls the laser scanner When the laser scanner system receives those signals it converts them to latent images on the photosensitive drum Figure 1 8 Laser scanner system Laser driver Scanning mirror Scanner motor unit BD sensor AN ye Photosensitive drum Y Photosensitive drum Photosensitive drum T T Photosensitive drum D 5 7 e i ai a cel 3 OE S E 2z BD z E xo E Q 5 uo 3 o 0 Za l v o zu Zz LU Ww u o a On a Pd a ON m gt A DC controller Laser failure detection The optical unit failure detection sensor manages the laser scanner unit failure detection functions The DC controller identifies the laser scanner unit failure and notifies the formatter if the laser scanner unit encounters the following conditions o Scanner motor failure e BD failure ENWW Laser scanner system 15 Image formation system The image formation system forms a toner image on media The product includes four
16. 126 Chapter 2 Solve problems ENWW Output is curled or wrinkled Cause Product is operating in an excessively humid environment Solution Verify that the printing environment is within humidity specifications You are printing large solid filled areas Large solid filled areas can cause excessive curl Try using a different pattern Paper used was not stored correctly and might have absorbed moisture Remove paper and replace it with paper from a fresh unopened package Paper has poorly cut edges Remove paper flex it rotate it 180 degrees or turn it over and then reload it into the input tray Do not fan paper If the problem persists replace the paper The specific paper type was not configured for the tray or selected in the software Configure the software for the paper see the software documentation Configure the tray for the paper The paper has previously been used for a print job Do not re use paper Product will not duplex or duplexes incorrectly Product will not duplex print 2 sided jobs or duplexes incorrectly Cause You are trying to duplex on unsupported paper Solution Verify that the paper is supported for duplex printing The printer driver is not set up for duplex printing Set up the printer driver to enable duplex printing The first page is printing on the back of preprinted forms or letterhead Load preprinted forms and letterhead in Tray
17. V2d Ajddns semod sasny TISSET E VO uus 18M0d ZIZ V2d iddns samod oBeyoA w01 Lon z Titans eneuuo 4 ez sur V2d 1J8loguoo OG Josues RF GRE a est RT d TIFOSTE TISSE RD Sensor camer ken dN Josuas uonensibay uonensiBe aid 1 soor SM usen Yd JeAUP 1ese1 yun Jeuueos Jose AOT TT WET TEITO TN E V2d Ajddns Jamod abejor yBIH uw 6e pic Bey puz Bey 351 Bey Kowey Aowan Aowen Kiowan EZ ar u ru on 57 Tools for troubleshooting ENWW
18. cccsccssccsecssessscsssssscescescessestecseeceeseseseesseeseesseesaeeeesaees 152 Unable to use group dials o ococccnocnnoncoonoonnonnoonconnonnconnnoncnonnnnnnonnnnnno cnn nono nan rn non nnns 152 Receive a recorded error message from the phone company when trying to send cit o 152 Unable to send a fax when a phone is connected to the product 153 xb aig anro PC 154 Fax error report printing cavidad idad nonae conan canam ida nin a aii 154 Print all faxireports uui iter itte e ted cree QU cuba A E e cca e 154 Print individual fax reports lees sseeeee non nnnn nennen nnns nnne nn snnt nnn 154 Set the fax error report 2 5 eerte trarre te hadd cdess eie ese dos uses SCR ERE VH Rd 155 Set the fax error correction mode esee esee sesesses eee ene enses tnstn ente nena cnc enne the testes 155 Change the fax speed EE anidan dae eds RISA TREER a ARSE RES 155 Solve email problems 5 iie eene etos inten oe nri eens Ein ie EET ENTE a S EVEN ERR PN Ga iS ed ARES RR ERE ERAR 156 Cannot connect to the email server eese sees ses seeeeee ee cnc ente estet thon ener trees ne 156 Tema is 156 TE 156 Validate LDAP gateway rnorrnnnronnvonnnrnnnvrrnvennnrennnnrnnvennnrennnsnnnrnnnnsnnnennnrsnnnssnnnsnnnrsnnnsnnnssnnnennnesnnrennnssnnvs
19. oooocononocnnonaconoonnonnnononnnnnnnonnnnnnonnnnnnnnnnnnnnn nennt nn nenas ta sense tenens 35 Data path CETERIS 35 Hook Stade iii kle 36 Downstream current detection snrnornonrnnnvnnonrnnrnnnrnnnnrnnnrnennennrnnennesvnnnnsnennenennnnnesvrsne 36 A E 36 Ring COG CE is AA a cd id 36 Eine current control kuene eei rentre ere enge nat ario re seed ea ee RR SER SNR AER US 36 Billing metering tone filters sees 37 Fax page Storage in flash memory esee esses eene enn enne nnns ta sinat nn sense tenens atas nnas 37 Stored fax pages eee reete te SE debis aded este 37 Advantages of flash memory storage eee sees eene rnn nennen 37 USB fl sh drive E 38 2 Solve problems EE aaa 39 Solve problemis checklist 2 innn daa 40 Menu Structure ainia da 42 CONTIQUEAIONFDO yc aia 43 Troubleshooting process 0 i 44 Determine the problem source sccescsssesscessesscessesssessecsessseceecsseseesseescesaecsecaeeeseecsseseeessenseesseass 44 POWEFSUDS SM A a ae ERE Re eR EAR REALES 45 Power on checks IMMMIU 45 Control panel checks o vtitur diaria dina id RE Roca taei haoni ee Va nagd 45 Tools for troubleshooting elei eese see eeee ene en sensn sinn enn stas i sasaaa cnn sese cnn setas sss ECN AE ETERNA 46 Individual component diagnostics eee esses ee
20. 1 400mfpM476dn_regulatory environmental for current information A CAUTION Power requirements are based on the country region where the product is sold Do not convert operating voltages This will damage the product and void the product warranty Environmental specifications Table A 2 Operating environment specifications Environment Recommended Allowed Temperature 17 to 25 C 62 6 to 77 F 15 to 30 C 59 to 86 F Relative humidity 30 to 70 relative humidity RH 10 to 80 RH Altitude Not applicable 0 to 3048 m 0 to 10 000 ft 162 Appendix A Product specifications ENWW Certificate of Volatility Figure A 1 Certificate of Volatility 1 of 2 ENWW Hewlett Packard Certificate of Volatility Model HP Color LaserJet Pro MFP M476 Printer series M M M Part Number 476nw CF385A 476dn CF386A 476dw CF387A Address Hewlett Packard Company 11311 Chinden Blvd Boise ID 83714 Volatile Memory Does the device contain volatile memory Memory whose contents are lost when power is removed X Yes No If Yes please describe the type size function and steps to clear the memory below Type SRAM DRAM etc Size User Modifiable Function Steps to clear memory DDR 256 MB Yes X No Used for temporary storage When the printer is powered during the process of jobs and off the memory is erased for applications tha
21. 2 ERE x s x gt VAYS 3288 28282258 38 a 2228 22888 sassgosoas ug 0 3582 Q n gt T T T 5 y T m T F ENWW Tools for troubleshooting 59 Diagrams HVT Toner EMP diagram Figure 2 12 HVT Toner EMP diagram 3 2 7 I 6 5 i 4 sva E 2 ssp Res ne 9133 0 R44 101 0 083WNOTMNT ee 4130 91 ven 000 PE R57 E Ras me 9131 gi Me I Dasic sop J133 e Trao Eod Pesos PES RE so0rsavmormnt Sa RES TNRRSPWM ise ASIC 111P per use I nas orar CPU 4p s em sx safe 3 HVDATA1 9133 T 3130 yz ER p 3133 0 Cl micat 320 100 008 GE enean iud m E 353 4 020 cot SSSBB F NOTMNT RER oH ASIC 118p TGEN 3130 ga I 1008 80v 9133 T57 p 4133 02 C asic112p ASIC 101p Ez 7 E Wie 22 HVDACLK 100P 50V NOTMNT 9130 g Awe som s133 o I asic 110p gave gave Rai 00M DOC casio 7ap 4 4 os E C asic 113p ied ere asic 92p a 100P 59V HVOUTEN 2188 c18 18538A EYNOTMNT ke 3 3133 0 Diasic119p DH Herr ASIC 03p 100 SOVINOTMN
22. Pug M FERET eve sl ics 2151 C asos L J150 0 E d B O o zd En na F uma3sEDT A A D XU pe cos asic sep m pones isi socer c a PER M ETON J150 0 I pruus CPU 100p CPU 2p a CPU 66p den EN NE pre PSREMAAVCS sic 529 1o00r sovmotmnt lt lt DUPLEX PCA gt gt Y 100V 200V Detect CHK 9 1155 J151 0 O 4155 rise perite I topup sist ost 1000r sov mote I I c72 E R190 cer 1 NOTA 5 9 aiio bra ESRPRSS vist o om i 1 4150 0 x I rama lt lt OPTION PCA gt gt cse 1o00r sov moret ve crucis DO PIPAS 9151 op sr diis d 5 FSR LVT DUP OPT ENV DEVSL rusa J150 OL LOOPS ASIC 77p ROSEN AR cP900 INTA R903 AK als o AWINOTMNT voor sov Zebra pattern 2 a lt lt LVT gt gt for HVT y Ver 7148010 lt lt FUSER gt gt CD1 7 ENWW Chapter2 Solve problems 62 iagram FSR d Figure 2 15 FSR diagram Diagrams RB36 R830 0 A505 see gt A505 J asez JNT803 R864 DAB2 B R832 R833 c8433 R843 oo1u s0v s 3157 Rem o i 3157 R845 Dasa1 DE Rassawe i cPU s8p mim T caaz ar JP4 n zecerizver z M rr R869 HTL aakoaw HODE SERM R860 R862 FERRO asos JNTS R863 al 1 2 Q863 R85
23. Separation Roller Pick Roller Input Tray Lift Plate Door Open Sensor Top of Form Sensor Pi Duplex Scanner ADF Glass The paper present sensor determines if paper has been loaded in the ADF The top of form sensor detects the top and bottom edges of the document The door open sensor detects when the ADF door is open ADF jam detection The ADF uses two sensors to determine if a jam has occurred The paper present sensor detects the presence of media in the ADF input tray The top of form sensor detects media moving through the ADF A jam can be detected under any of the following conditions e Document feeder mispick When a document is detected in the ADF input tray and a command to copy scan is received the ADF attempts to pick the page from the input tray If the page is not picked is not successfully the ADF will pulse the motor and cycle the lift plate in an attempt to dislodge the stuck page Three attempts are made to advance the paper to the form sensor If the paper does not advance a Document feeder mispick message will appear on the control panel display e A Long document jam If a page is picked and advanced to the top of form sensor but the trailing edge of the page is not detected within the time allowed for a 381 mm 15 inch document the maximum allowable page length for the ADF a Document feeder jam message will appear on the control panel display e Stall jam When a page that is less than
24. control panel clean touchscreen 130 cleaning page printing 128 Copymenu 77 demo page printing 66 doesn t illuminate 40 Faxmenu 75 fax reports printing 66 Fax Setup menu 67 HP Web Services menu 65 menu map printing 66 menus 65 messagetypes 78 messages troubleshooting 79 Network Setup menu 74 Quick Forms menu 75 Reports menu 66 Self Diagnostics menu 66 Service menu 72 Setup menu 65 System Setup menu 69 controls hook switch control 36 conventions document iii Copy menu control panel 77 copying sequence 28 creases troubleshooting 111 123 crooked pages 123 troubleshooting 111 curled paper 123 current control fax line 36 D darkimage troubleshooting 107 data path fax 35 DC controller engine control system 7 laser scanner system operations 15 pickup and feed system operations 23 default settings restoring NVRAM initialization 158 defaults restoring 158 Index 165 demo page 46 developing stage 18 device downstream detection fax 36 diagrams troubleshooting 50 dialing pulse 36 distinctive ring 34 document conventions iii document feeder jams 97 dots troubleshooting 120 downstream device detection fax 36 drive components diagrams 50 drivers usage page 66 drum rotation functional check 47 drum image formation operations 17 E EconoMode setting 117 electrical specifications 162 engine control DC controller 8 error messages control panel 79 error report 92 eventlog 92 err
25. date and fax header information a From the Home screen on the product control panel touch the Setup y button b Open the Fax Setup menu Open the Basic Setup menu d Open the Fax Header menu e Enter the correct settings 4 Verify that any extension phones on the line are hung up 5 If using a DSL service make sure that the phone line connection to the product includes a high pass filter Product is password protected If anetwork administrator has set a product password then you must obtain the password in order to use the product fax features ENWW Solve fax problems 151 Unable to use fax functions from the control panel e The product might be password protected Use the HP Embedded Web Server HP Toolbox software or the control panel to set a password e Ifyou do not know the password for the product contact your system administrator e Verify with the system administrator that the fax functionality has not been disabled Unable to use speed dials o Make sure that the fax number is valid e Ifan outside line requires a prefix turn on the Dial Prefix option or include the prefix in the speed dial number a From the Home screen on the product control panel touch the Setup button b Open the Fax Setup menu Open the Basic Setup menu d Open the Dial Prefix menu e Select the On setting Unable to use group dials e Make sure that the fax number is valid e Ifan outside line requir
26. developing bias contacts the problem remains after cleaning between the toner cartridge and check the contacts for damage the product Replace any deformed or damaged parts Replace the affected toner cartridge The toner cartridge might not Open the toner cartridge drawer and be seated properly re seat the toner cartridge A color is missing from the image The primary transfer roller is Replace the ITB deformed or has deteriorated White spots appear in an image The secondary transfer rolleris Replace the secondary transfer roller deformed or has deteriorated The back of the page is dirty The secondary transfer roller is Replace the secondary transfer roller EV EE dirty The fuser inlet guide or Clean the dirty parts If the dirt does separation guide is dirty not come off replace the guide The pressure roller is dirty Run the cleaning page several times If the issue persists replace the fuser 108 Chapter2 Solve problems ENWW Table 2 20 Image defects table continued Problem Vertical streaks or bands appear on the page Cause Scratches are present on the circumference of the photosensitive drum Solution Replace the toner cartridge of the color that matches the defect Scratches are present on the circumference of the fuser roller Replace the fuser Scratches are present on the circumference of the ITB Replace the ITB The ITB drive rol
27. pages printing slowly 131 power 40 problem source 44 receive fax 142 repetitive defects 124 reports and tools 46 send fax 147 skewed pages 111 123 status page 46 text 111 122 toner scatter 124 tonersmear 111 121 toner specks 120 USB cables 131 USB connection 134 wired network 134 wireless network 135 wrinkles 111 123 troubleshooting tools control panel LEDs 46 drum rotational check 47 Engine diagnostics 47 half self test check 48 networkLEDs 46 U usage page 66 USB connection troubleshooting 134 USB port locating 49 troubleshooting 131 V V 34 setting 155 vertical lines troubleshooting 109 121 voice over IP VoIP services 34 W warnings iii wavy paper troubleshooting 123 Web Services menu control panel 65 white spots troubleshooting 108 wireless network troubleshooting 135 wireless network interference 138 wrinkles troubleshooting 111 123 ENWW Index 169 170 Index ENWW 2014 Hewlett Packard Development Company L P www hp com
28. 0 BEYMACC C sic ssp T 1u 2sv lt lt DRIVER PCA 1 1 gt gt T CD1 6 61 Tools for troubleshooting ENWW Diagrams Duplexer PCA diagram Figure 2 14 Duplexer PCA diagram 7 L s 5 L 4 3 L 2 L 1 9ava szavaz Dr d s 3151 0 R1501 Sion R1502 820 0 053W 9151 0 230 003 I 5 c103 MASA ns o m 4153 o 1 ones 5 ooru som RA 2 Si R1503 Gilde REN ES Miser oe Mm 1 D ASIC 42p R814 of masseDT L c104 2150 0 9153 ot a 7 owanw 4151 04 1 26102 if sisi os R51 Ras a17 134004 cs12 22K 0 003 HO AVINOTMNT ALE 4150 04 i i cu I D lt lt ENVIRONMENT SENSOR gt gt E sk E EPU 44p 3154 OL dies nd si 8p VROEG cpu72p am i d J c824 z Tu2eviNOTMNT j 3 caro 1184 casic cep 9152 p DUPSWBKCL C 516355 330A a O Dese supar ENS Reza E al ATK0 Ww Gees Tess A506 R197 82021512 b ui anise His 22K 0 089w Bes duds ds R824 4151 o CPU 55p aaup ae io lt lt DEV SL gt gt ATK OW D oy Aso n t al pao m m E Im DUPFANON C cosy aay ME i nee 2301 EE Ra27 1500050 rise 2momw T Reze CPU 38p ESRRLD1 2 J al O 4151 s iso ol 1 i RU VERA 150 0 003w J52 o2 DUPSWBKSL C asIc 32p
29. 1 with the letterhead or printed side down with the top of the page leading into the product For Tray 2 and 3 load the paper printed side up with the top of the page toward the right of the product The product model does not support automatic 2 sided printing The product model does not support automatic 2 sided printing The product configuration is not set for duplexing In Windows run the automatic configuration feature 1 Click the Start button point to Settings and then click Printers for Windows 2000 or Printers and Faxes for Windows XP 2 Right click the HP product icon and then click Properties or Printing Preferences 3 Clickthe Device Settings tab 4 Under Installable Options click Update Now in the Automatic Configuration list Solve paper handling problems 127 Clean the product Clean the pickup and separation rollers 1 Turn off the product unplug the power cable from the product and then remove the rollers 2 Daba lint free cloth in isopropyl alcohol and then scrub the roller A WARNING Alcohol is flammable Keep the alcohol and cloth away from an open flame Before you close the product and connect the power cable allow the alcohol to dry completely SX NOTE In certain areas of California USA air pollution control regulations restrict the use of liquid isopropyl alcohol IPA as a cleaning agent In those areas of California please disregard the previous recommendations a
30. 17 Step 1 primary charging cssscecsecssecsseceseecsscecseessscessececseesseecseeeeseeeses 17 Step 2 laser beam exposure rrrannnnennvrrnnrnnnvernnrsnnnrennnrnnvrnnnnennvesnnrennnesnnssnn 18 Developing Stad np tae agite aede 18 Step 3 development esee ee eeee nennen tenentes nnns nnn 18 Transter Stage osten tetro Aase 19 Step 4 primary transfer eese esee eene tenete sets thes sena nnn 19 Step 5 secondary transfer eese eese nn nn cnn nnne 19 Step 6 separation from the drum ooonocnnococononnconcnnnonnnonnnonnnonnnnnnononnnno canon 20 FUSING Stage oe eto idi e imu HEU 20 Step 7 IIT XM 20 ITB cleaning stage eroi ete Saeed ea 21 St p 8 ITB cleaning ic eite india 21 Drum cleaning stage siesena e Eran cre rre sicarios 22 Step 9 drum cleaning ettet ei i ete iae ten 22 Developing roller engagement disengagement control 22 Pickup and feed EA EA CIERRE 23 iuam 25 Padtranster iii n eet ete d EE RR erste coda aa iesu e I pins 25 Multiple feed prevention eee esses eese vennen nn non sena non setas th setas tenen ases sns sn sanas 26 Scanning and image capture system coooccccconcconoonnonnnonnnonoonnnonnnnnnonnonnonn non senes tn sites tassa irse nn sessi sensn tes nano ses nasa sns 27 Scanner power on sequence of events csscceccsscssscsseesscescescesse
31. 2 2 Engine test button access sssccsssssscsscesscsscessesssessecssessecsseseecsesssecaecsaesaeesaeesscsesesscessessecseessecsseseecassaeesaeeaaes 47 Figure 2 3 Major components eese ieese essei eese en sentes enne stna sense tunes tasas toss ta sesta sense sense ss esas essa senses esas esses ense sans 50 Figure 2 4 Motors TRIER STREET EET 52 Figure2 5 Rollers n a A eii n E OM eI WIR NE 53 Elqure2 6 c E id 54 Figure 2 7 Optional 250 sheet cassette cccecsscssscssessscessessceseessecssessecssescessseseesoesssessecssessseaeesscessesseesseceesseeseesseeaees 55 Figure 2 8 Timing diagram A 56 Figure 2 9 Circuit GiaAGraM ceccessessesssessecstessesssescesssessecssesssesssssesssessecssensecsecssecaesssessesseesaecseeseeasseseeeseecesesseasscaseaeesaes 57 ENWW xvii Figure 2 10 Figure 2 11 Figure 2 12 Figure 2 13 Figure 2 14 Figure 2 15 Figure A 1 Figure A 2 xviii CPU diagram 58 AVS Gi Gt almi s aede li ficu 59 HVT Toner EMP diagram erene te ERE i ese S VR E RATER eR E pa Res ter ERREUR 60 Driver PCA diagk armis aito ia TOS 61 Duplex r PCA diagram 5 tete saca 62 FSR 0 1 O 63 Certificate of Volatility 1 of 2 nsoenrnrornronovenrnrerovenrnversnrnvnrnnsnrnrnennersnenesrersnensnvsrsnsnenenssssvenenssrsvensnrnenssnsnenennee 163 Certificate of Volatility 2 of 2 enenrnrornronovenrnrerorenrnrerenenrnrnnnnrnrnensersnenesrnrsnensnrne
32. 31409 eno moros BTS me E 3163 0 S J140 918 SSIPKSL o asic sro po FEN il ASIC 87p 3 t J163 o J140 915 MEANPWI 4161 z 133vA Til m Cies qe szava h For CPU WRITER me j bid 4161 0 S Risa a T Em az 4163 92 EGS cpu ssp y 9140 91 7 ASIC 66p d161 1 K0 069wW al iniaa J168 CPU 56p co 5 nes ca Eee mM pl Va ru Eia varm kone MEUS gol gave J140 912 MPTCLCH v T to gt ci Seres ors R72 I R169 saava H 15k o oes puta 9140 932 MPIPKSL 4 ASIC 55p 180 010 R148 o asic s6p 3 ner 9140 gii ESRMREV lt 5 sn asic s7p vs pe Qs 3167 20 he 4140 910 ESENAES C asiceop i mna gal ID cPu 23p oor S0VNOTMNT BTE am med 3167 22001284 mu s ee 2 FSEMDEC 1 800 083 10006 SOVANOTMNT 74 tT X asic s1p NE eve R140 1 7 car Hi R172 J167 9 MVA 1000P 50V NOTMNT ER 100P SOV NOTMNT y a 4165 360 0 125W S I md ay R243 me 3161 E 3167 4140 98 ASIC 62p 2 P vaava ono des ag tasic eap mage pe ses 20 gt ER BK 100P 50v E ian Hh j For CPU WRITER Z EN DRMMEG R155 J167 3140 9 4 Lm ASIC 49p DH R138 ud 12 RB7ISF RSSRA 3 pire PREGS rors T 3161 o C siae 4165 O M D ceu 3167 da ES O asesi a lor jer 4464 94 EELSGANO cpu 9165 22022077 dnas cd t 1000 4204 4 DRIVER PCA SENSOR a derogi vies R150 3161 o 4140 a L2 quens esee h TS b I sos TE 3161 a o i R137 2 DEVUDES fir P 41409 C asic s4p 3161 QU pe BLS gt cpu sop toor sovmoranT qr i SAS cas 3140
33. 7 HP LaserJet Pro Color MFP M476 Troubleshooting Manual M476dn M476dw M476nw Q www hp com support colorljMFPM476 www hp com support HP LaserJet Pro Color MFP M476 Printer Troubleshooting Manual Copyright and License Trademark Credits O 2014 Copyright Hewlett Packard Microsoft Windows Windows XP Windows Development Company L P Vista Windows 7 Windows 8 and Windows 8 1 are U S registered trademarks Reproduction adaptation or translation of Microsoft Corporation without prior written permission is prohibited except as allowed under the copyright laws ENERGY STAR and the ENERGY STAR mark are registered U S marks The information contained herein is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein Edition 1 4 2014 Conventions used in this guide TIP Tips provide helpful hints or shortcuts x 5 NOTE Notes provide important information to explain a concept or to complete a task A CAUTION Cautions indicate procedures that you should follow to avoid losing data or damaging the product A WARNING Warnings alert you to specific procedures that you should follow to avoid personal injury cata
34. Does the item accept USB input and if so for what purpose i e Print Jobs device firmware updates scan upload X Yes No If Yes please describe below Description Print jobs scan to USB thumb drive device firmware updates USB can be disabled Can any data other than scan upload be sent to the USB device Yes X No If Yes please describe below RF RFID Does the item use RF or RFID for receive or transmit of any data including remote diagnostics e g Cellular phone Bluetooth X Yes No If Yes please describe below Purpose Wireless information string Frequency 13 56 MHz Bandwidth 106 848kbps Modulation 7 30 Effective Radiate Power ERP Not an intentional radiator Load modulation as passive tag emulation Specifications Other Transmission Capabilities Does the device employ any other methods of non wired access to transmit or receive any data whatsoever e g anything other than standard hard wired TCP IP direct USB or parallel connections X Yes No If Yes please describe below Purpose Wirelss network connectivity Frequency 2 4 GHz Bandwidth 802 11n 20 Mhz Modulation Effective Radiate Power ERP 802 11n 15 1 5dBm Specifications 802 11n a b g Other Capabilities Does the device employ any other method of communications such as a Modem to transmit or receive any data whatsoever x Yes No If Yes please describe below
35. Full 100TX Half Security Product Security Set product security options If enabled the product prompts you to set a password After it is set the password is required to change product settings The following options are available e On e Off Chapter2 Solve problems ENWW Table 2 14 Network Setup menu continued Menu item Sub menu item HTTPS Enforcement Description Sets the product so that it communicates only with Web sites that use hypertext transfer protocol secure HTTPS The following options are available Firewall Enable disable or reset the product firewall Access Control List Enable disable or reset the network access control list 802 1X Enable disable or reset the 802 1x wireless authentication protocol Reset All Security Reset the security settings to the factory set default values Restore Defaults Resets all network configurations to their factory defaults Quick Forms menu Table 2 15 Quick Forms Menu Menu item Sub menu item Description Notebook Paper Narrow Rule Prints pages that have preprinted lines Wide Rule Child Rule Graph Paper 1 8 inch Prints pages that have preprinted graph lines 5mm Checklist 1 Column Prints pages that have preprinted lines with check boxes 2 Column Music Paper Portrait Prints pages that have preprinted lines for writing music Landscape Fax Menu In the following table items that have an asterisk indica
36. INTR period until the delivery motor stops rotating the product period as soon as the formatter sends another print command Basic operation 3 4 Formatter control system The formatter is involved in the following procedures Controlling the Sleep Delay function Receiving and processing print data from the various product inputs Monitoring control panel functions and relaying product status information through the control panel and the bidirectional input output Developing and coordinating data placement and timing with the DC controller PCA Storing font information Communicating with the host computer through the bidirectional interface The formatter receives a print job from the bidirectional interface and separates it into image information and instructions that control the printing process The dc controller PCA synchronizes the image formation system with the paper input and output systems and then signals the formatter to send the print image data Sleep Delay When the product is in Sleep Delay the control panel backlight is turned off but the product retains all product settings downloaded fonts and macros The default setting is a 15 minute idle time Sleep Delay can be turned off from the System Setup menu on the control panel The product exits Sleep Delay and enters the warm up cycle when any of the following occurs A print job valid data or a PML or PJL command is received at the serial po
37. Load paper into the input tray Open the product and remove any paper in the paper path The paper size is not configured correctly for the input tray Print a configuration page or use the control panel to determine the paper size for which the tray is configured The guides in the tray are not against the paper Verify that the rear and width paper guides are touching the paper Solve paper handling problems 125 Paper does not feed automatically Cause Solution The Manually Feed Prompt item is set to Always The product Open the tray reload the media and then close the tray always prompts for manual feed even if the tray is loaded Or change the Manually Feed Prompt setting to Unless loaded so that the product prompts for manual feed only when the tray is empty The Use Requested Tray setting on the product is set to Load the requested tray Exclusively and the requested tray is empty The product will not use another tray Or change the setting from Exclusively to First on the Manage Trays menu The product can use other trays if no media is loaded in the specified tray Paper does not feed from Tray 2 or 3 Paper does not feed from Tray 2 or 3 Cause Solution The correct size paper is not loaded Load the correct size paper The input tray is empty Load paper in the input tray The correct paper type for the input tray is not selected in the From the product control panel select the correct
38. PSTN operates through a central office CO that generates a constant voltage on the TIP and RING wires 48 V usually A device goes on hook by connecting impedance such as 600 ohms for the U S across the TIP and RING so that a line current can flow The CO can detect this current and can send impulses like dial tones The product generates more signaling tones such as dialing digits to tell the CO how to connect the call The product can also detect tones such as a busy tone from the CO that tell it how to behave When the call is finally connected the CO behaves like a piece of wire connecting the sender and receiver This is the period during which all of the fax signaling and data transfer occurs When a call is completed the circuit opens again and the line current flow ceases removing the CO connection from both the sender and the receiver On most phone systems the TIP and RING wires appear on pins 3 and 4 of the RJ 11 modular jack the one on the fax card These two wires do not have to be polarized because all the equipment works with either TIP or RING on pin 3 and the other wire on pin 4 This means that cables of either polarity can interconnect and will still work These basic functions of PSTN operation are assumed in the design of the fax subsystem The product generates and detects the signaling tones currents and data signals that are required to transmit and receive faxes on the PSTN Receive faxes when you hear fax t
39. Purpose Fax modem for receipt and sending of faxes Specifications 33 6 kbs Author Information Name Title Email Business Unit Debbie Tuckness Technical Marketing Debbie tuckness hp com IPG Engineer Date Prepared 01 15 14 164 Appendix A Product specifications ENWW Index A ACL advanced controllanguage 6 acoustic specifications 162 ADF duplex operation 30 jam 31 jam clearance 32 jam detection 31 operation 30 paper path 30 paper present sensor 30 31 sensors 30 advanced control language ACL 6 B background shading troubleshooting 121 bands and streaks troubleshooting 121 bands troubleshooting 109 billing filters fax 37 tone 37 blank pages troubleshooting 107 131 C cables USB troubleshooting 131 calibrate colors 117 cartridges drum rotation check 47 image formation system 16 supplies status page 66 cautions iii characters troubleshooting 111 122 ENWW checklist faxtroubleshooting 139 problem source 44 wireless connectivity 136 checks drumrotation 47 half self test 48 circuit diagram 57 clean touchscreen 130 cleaning glass 115 128 paper path 115 128 cleaning stage drum 22 ITB 21 CO operations 33 color troubleshooting 110 color options changing Windows 118 color theme changing Windows 118 color usage log 66 colors calibrate 117 components 2 diagram 50 configuration page 46 66 configuration report 43
40. The toner smears easily when touched AaBbCc Acces A AaBbCc AaBbCc Cause The product is not set to print on the type of paper on which you want to print Solution In the print driver select the Paper Quality tab and set Paper Type to match the type of paper on which you are printing Print speed might be slower if you are using heavy paper The paper might not meet HP specifications Use paper that meets HP specifications The paper path might need cleaning Clean the paper path The power source might be defective Plug the product directly into an AC outlet instead of into a power strip The fuser temperature might be too low In the print driver make sure the appropriate paper type is selected Marks repeatedly appear at even intervals on the page AaBbC AaBbCc _ AaBbC AaBbCc AaBbC The product is not set to print on the type of paper on which you want to print In the print driver select the Paper Quality tab and set Paper Type to match the type of paper on which you are printing Print speed might be slower if you are using heavy paper Internal parts might have toner on them The problem typically corrects itself after a few more pages The paper path might need cleaning Clean the paper path A component might be damaged Use the repetitive defect ruler table to determine the problem The printed page contains mis
41. Theory of operation ENWW Transfer stage Step 4 primary transfer The toner image on the photosensitive drum is transferred to the ITB The DC positive bias is applied to the primary transfer pad The negatively charged toner transfers to the ITB from the drum surface Figure 1 14 Primary transfer Photosensitive Step 5 secondary transfer The toner image on the ITB is transferred to the print media The DC positive bias is applied to the secondary transfer roller As the media passes between the secondary transfer roller and the ITB the toner image is transferred to the media Figure 1 15 Secondary transfer Media ITB drive roller Secondary transfer roller DC bias TT ENWW Image formationsystem 19 20 Step 6 separation from the drum The elasticity of the print media and the curvature of the ITB drive roller cause the media to separate from the ITB Figure 1 16 Separation from the drum pr Media ITB drive roller Secondary transfer roller Fusing stage Until the fusing stage is complete the image is not permanently affixed to the print media The toner can be easily smudged until the heat and pressure of the fusing process fix the image to the sheet Step 7 fusing The product uses an on demand fusing method to fuse the toner image onto the media The toner image is permanently affixed to the print media by the heat and pressure Figure 1 17 Fusing Fuser film Pressure
42. defective Replace the toner cartridge of the affected color Toner smears appear on the paper The product has residual paper Remove the residual paper The fuser inlet guide is dirty Clean the fuser inlet guide The printed page contains misformed characters The product is experiencing page skew See the Text or graphics are skewed on the printed page row in this table The laser scanner unit is defective Replace the laser scanner assembly Text or graphics are skewed on the printed page The registration shutter spring is unhooked Check the spring and place it in the correct position The registration shutter spring is deformed Replace the secondary transfer assembly The printed page contains wrinkles or creases m S The roller or paper feed guide is dirty Clean any dirty components A feed roller is deformed or has deteriorated Replace any deformed or deteriorated rollers The paper feed guide is damaged Replace the paper feed guide unit ENWW Solve image quality problems 111 Table 2 20 Image defects table continued Problem Sample Cause Solution The front of the page is dirty The photosensitive drum is Replace the toner cartridge dirty The fuser roller or pressure Execute a Pressure roller clean mode roller is dirty procedure If the dirt does not come off replace the fuser NOTE Cleaning the fuser wit
43. document origin position of the original If the document origin cannot be located a default position is used instead LED check The product moves the carriage to the white calibration label under the left side of the flatbed image scanner and it verifies that the minimum and maximum response is acceptable It reports a scanner error 14 if the response is unacceptable Home find The scan carriage uses the optical scanner to find physical reference features that relate to the document origin at the left side of the image glass This process ensures accurate location of the Scanning and image capture system 27 28 first document pixels so that the user documents will have an accurate placement of the image on scans and copies It reports a scanner error 6 message if the reference features are not found Calibration This test also known as scanner color calibration enables the product to identify the black and white on every pixel in the CCD Calibration occurs in two major processes a broad analog adjustment of all pixels to bring them into the target output range and a pixel by pixel adjustment digital to fine tune the actual black and white response The calibration process occurs under the left side of flatbed image scanner where there is a special white calibration label Calibration is the most important step in creating a high quality image Calibration problems can include color inaccuracies brightness inaccuracies and vert
44. flat flexible cables FFC s are seated correctly on the formatter board 4 Ifthe error persists replace the Scanner ADF Assembly HP Part tt CF387 60106 5 Ifthe error persists escalate to Level 3 so that Technical Marketing has visibility to the problem 49 Error Turn off then on Description The product has experienced an internal embedded software error Under most conditions the product automatically restarts Recommended action 1 Reset the printer a Turn off the power by using the power switch and then wait at least 30 seconds b Turn on the power and wait for the product to initialize If you are using a surge protector a Poweroffthe printer b Removethe surge protector c Plugthe product directly into the wall socket and turn the product power on If the error persists disconnect any network or USB cables and power cycle If the product returns to Ready check the FW version and update if a newer version is available If the error persists print a Service Page from the Reports menu Also print an Error Report from the 2ndary Service Menu Onthe Service Page look at the xxxx portion of the 49 xxxx errors listed 80 Chapter2 Solve problems ENWW e Ifthe numbers are all or mostly different then power quality is a possible problem try a different wall socket e Ifthexxxx portion of 49 xxxx contain repeats of the same numbers or groups of numbers then check the 2ndary Service Error Report pr
45. jack downstream jack to be disconnected from the telephone circuit The product takes control of calls that it recognizes as fax calls If the product does not directly pick up the call it monitors incoming calls for the fax tone or for the user to direct it to receive a fax This idle mode is also called eavesdropping This mode is active when the product is on hook but current exists in the downstream phone line because another device is off hook During eavesdropping the receive circuit is enabled but has a different gain from the current that is generated during normal fax transmissions The product does not take control of the line unless it detects a fax tone or the user causes it to connect manually This feature allows the user to make voice calls from a phone that is connected to the product without being cut off if a fax is not being received Downstream current detection The line voltage monitoring module of the silicon DAA can detect the line state as well as the downstream device It tells DSP via DIB that an active device telephone modem or answering machine is connected to the auxiliary port on the product the right side of the RJ 11 jack The DSP uses the signal to ensure that the product does not go off hook and disconnect a downstream call until it has been authorized to do so by a manual fax start or the detection of the appropriate tones Hook switch control In the silicon DAA the CODEC controls the hook switch di
46. menu control panel 74 networks configuration page 66 security features 33 settings report 66 notes iii NVRAM initialization 158 0 off hook 36 on hook 36 operations engine control system 3 fax 33 fax card in subsystem 35 fax subsystem 35 fax PSTN 33 image formation system 16 jam detection 25 laser scanner system 15 pickup and feed system 23 product systems 7 PSTN 33 scanning and image capture system 27 sequence of 3 P page count 66 pages blank 131 not printing 131 printing slowly 131 skewed 111 123 paper curled troubleshooting 123 jam detection operations 25 jams 95 selecting 116 wrinkled 111 123 paper jams See jams paper pickup problems solving 106 PCAs diagrams 54 PCL font list 66 photosensitive drum image formation operations 17 rotation functional checks 47 pickup roller locating 53 pickup and feed system operations 23 ports locating 49 power consumption 162 fax line current control 36 supplies diagrams 50 troubleshooting 40 power failiure 40 power saving 10 power supply 9 protective function 9 power on scanner sequence 27 power on checks 45 primary charging stage 17 print cartridges image formation system 16 print quality troubleshooting tools image defects table 107 repetitive image defect ruler 64 printing troubleshooting 131 problem solving noresponse 132 slow response 133 product fax functions 33 operation sequence 3 8 protocol settings fax 155 PS font list 66 PSTN o
47. might be useful when you are trying to send a fax overseas or receive one from overseas or if you are using a satellite telephone connection 1 From the Home screen on the product control panel touch the Setup y button 2 Touchthe Service menu 3 Touchthe Fax Service menu 4 Touchthe Error Correction button and then touch the On button Change the fax speed ENWW The fax speed setting is the modem protocol that the product uses to send faxes It is the worldwide standard for full duplex modems that send and receive data across telephone lines at up to 33 600 bits per second bps The factory set default for the fax speed setting is Fast V 34 You should change the setting only if you are having trouble sending a fax to or receiving a fax from a particular device Decreasing the fax speed might be useful when you are trying to send a fax overseas or receive one from overseas or if you are using a satellite telephone connection 1 From the Home screen on the product control panel touch the Setup amp button 2 Touchthe Fax Setup menu 3 Touchthe Advanced Setup menu 4 Scroll to and touch the Fax Speed button and then touch the speed setting that you want to use Solve fax problems 155 Solve email problems If Scan to E mail problems occur try these solutions o Make sure this feature has been set up If this feature has not been set up use the setup wizard in the HP Device Toolbox Windows or HP Utility fo
48. name and color usage information Service Page on a job by job basis Prints the service report Diagnostics Page Prints the calibration and color diagnostics pages Print Quality Page Prints a page that helps solve problems with print quality Default Info Page Prints a page that lists the default settings for the product Self Diagnostics menu 66 Table 2 10 Self Diagnostics menu Menu item Run Wireless Test Description Performs a wireless network test and prints the results Run Fax test Performs a fax connectivity test and prints the results Chapter2 Solve problems ENWW Fax Setup menu In the following table items that have an asterisk indicate the factory default setting Table 2 11 Fax Setup menu Menu item Sub menu item Fax Set Up Utility Sub menu item Description This is a tool for configuring the fax settings Follow the on screen prompts and select the appropriate response for each question Basic Setup Time Date 12 Hour Sets the time and date setting for the product 24 Hour Fax Header Sets the identifying information that is sent to the receiving product Answer Mode Automatic Sets the type of answer mode The following options are available Manual e Automatic The product automatically answers TAM an incoming call on the configured number of rings Fax Tel e Manual The user must touch the Start Fax button or use an extensi
49. nana 125 Paper does not feed automatically ooconccnonococonanoncconocnncnnnonnnononnnno noo eee ee seen nnne nn nnne sth sennn nen 125 Paper does not feed from Tray 2 Or 3 eese eene enne nn snn sonne senes tenerse th ninas 126 Qutput is curled or wrinkled si A 126 Product will not duplex or duplexes incorrectly eres serere eene 127 Clean the product EE 128 Clean the pickup and separation rollers ccccssscsscsssecsscesscessecessecestecsscecseecsssececeseeesseceeeessees 128 Clean the paper oT LAA O A ee tet toe t p ii n iocis 128 Clean the scanner glass strip and platen eese eese etn ntn nne nen ne 128 Clean the document feeder pickup rollers and separation pad esee 129 Clean the touchscreen ies re ent ene o e RAS DU ERR italia 130 Solve performance problems sccescssscescessesscessesssessecssessecsesssecoesseeseecsaesoeesecesecssessesseseeessensecsseseecsesseesaes 131 Factors affecting print performance eese eese eese ee eene enn nn non se nn non setas irse tests esas snain 131 Print sp eds 52 ten ah iita t todo nad 131 The product does not print or it prints slowly esses esee ener erneut 132 The product does not print cdi ere tee ro eme eo e re ree hcl 132 The product prints slowly eonrornnronnnernnvrnnnrnnnnennnrnnnnrnnnnrnnnnnnnennnvesnnrennnesnnnsn
50. page sees eee eene nnne 114 Clean the product zu iie id 115 Print a cleaning page esses sees eene aaa ennt nan nn tnn ai 115 Check the scanner glass for dirt and smudges sss 115 Visually inspect the toner cartridge eese eese eene enne 116 Check paper and the printing environment esses ener etn 116 Step one Use paper that meets HP specifications 116 Step two Check the environment esses eene eterne 116 Calibrate the product to align the colors nornnvornnronnvrrnnvennnrennnrnnnrnnnnennvnrnnrnnnnesnnnennnr 117 Check other print job settings lesse eere 117 Check the EconoMode settings ccssecsessssssesssessecsecesecsscesseescessesseeees 117 Adjust color settings Windows ccccsssscesessssssesescsssscecseseseceseesesesees 118 Try a different print driver eise seess iiia 119 General print quallity iSSUCS iii rire dee ro I eae tdt 120 Solve paper handling problems ain eese eese eese sten nn conc rca anno nn nor rn sta nono aia aaia iia iaasa 125 Product feeds incorrect page size cscsesccsecssessecsscssscessesecessessecesecsecsseseecsseseeseeeseeseseseesseeseees 125 Product pulls from incorrect tray elei E tnnt enteras nnns nnn sns nnn
51. paper type for product control panel the input tray Trays configured for a paper type with a specific weight range will not match a print job that specifies an exact weight even if the specified weight is within the weight range Paper from a previous jam has not been completely removed Open the product and remove any paper in the paper path Closely inspect the fuser area for jams None of the optional trays appear as input tray options The optional trays only display as available if they are installed Verify that any optional trays are correctly installed Verify that the printer driver has been configured to recognize the optional trays An optional tray is incorrectly installed Print a configuration page to confirm that the optional tray is installed If not verify that the tray is correctly attached to the product The paper size is not configured correctly for the input tray Print a configuration page or use the control panel to determine the paper size for which the tray is configured The guides in the tray are not against the paper Verify that the guides are touching the paper Output is curled or wrinkled Output is curled or wrinkled Cause Solution Paper does not meet the specifications for this product Use only paper that meets the HP paper specifications for this product Paper is damaged or in poor condition Remove paper from the input tray and load paper that is in good condition
52. print cartridges that contain the toner that is used to create the image on the media Toner is applied in the following order using only the colors necessary for a specific image yellow Y magenta M cyan C and black Bk Figure 1 9 Image formation system Ly Fuser unit OO Cartridge E3 Laser scanner unit XY Laser beam Photosensitive drum TB cleaning unit Primary transfer pad Secondary transfer roller i gt High voltage power supply KD DC controlle Image formation process Overview 16 Laser printing requires the interaction of several different technologies including electronics optics and electrographics to provide a printed page Each process functions independently and must be coordinated with the other processes Image formation consists of the following processes These processes are divided into nine steps and described in the following sections e Latent image formation o Primary charging o Laser beam exposure e Development e Transfer o Primary transfer o Secondary transfer o Separation o Fuser Chapter 1 Theory of operation ENWW e ITB cleaning e Drum cleaning Figure 1 10 Image formation process Media path 4 Direction of drum rotation Hem p nn tese Ce bee cee eee ees p AAA E ooo Development a Transfer Registration Late
53. print quality problems such as misaligned color colored shadows blurry graphics or other print quality issues 1 2 4 On the product control panel touch the Setup x button Open the following menus e System Setup e Print Quality e Color Calibration e Calibrate Now A Calibrating message will display on the product control panel The calibration process takes a few minutes to complete Do not turn the product off until the calibration process has finished Wait while the product calibrates and then try printing again Check other print job settings When printing from a software program follow these steps to try to resolve the issue by adjusting other print driver settings Check the EconoMode settings HP does not recommend the full time use of EconoMode If EconoMode is used full time the toner supply might outlast the mechanical parts in the toner cartridge If print quality begins to degrade and is no longer acceptable consider replacing the toner cartridge E NOTE This feature is available with the PCL 6 print driver for Windows If you are not using that driver you can enable the feature by using the HP Embedded Web Server Follow these steps if the entire page is too dark or too light 1 2 3 ENWW From the software program select the Print option Select the product and then click the Properties or Preferences button Click the Paper Quality tab and locate the Print Quality area
54. printed before the product reduces the print speed Thermal slow down reduces print speed by printing four pages and then pausing for an amount of time before printing continues Other print speed reduction factors Other factors especially during large print jobs that can cause reduced print speeds include o Density control sequence occurs every 150 pages and takes about 120 seconds The product does not print or it prints slowly The product does not print If the product does not print at all try the following solutions 1 Make sure the product is turned on and that the control panel indicates it is ready e ifthe control panel does not indicate the product is ready turn the product off and then on again e ifthe control panel indicates the product is ready try sending the job again If the control panel indicates the product has an error resolve the error and then try sending the job again Make sure the cables are all connected correctly If the product is connected to a network check the following items e Checkthe light next to the network connection on the product If the network is active the light is green e Make sure that you are using a network cable and not a phone cord to connect to the network e Make sure the network router hub or switch is turned on and that it is working correctly Install the HP software from the CD that came with the product Using generic printer drivers can cause delays clearing
55. replace the Scanner ADF Assembly HP Part tt CF387 60106 Fax is busy Canceled send Description The fax line to which you were sending a fax was busy The product has canceled sending the fax Recommended action 1 Call the recipient to ensure that the fax machine is on and ready 2 Verify that the fax number is correct 3 Verify that the Redial if Busy option is enabled 4 Openthe Service menu and then touch the Fax Service button Touch the Run Fax Test button This test verifies that the phone cord is connected to the correct port and that the phone line has a signal The product prints a report with the results 5 For more information about troubleshooting problems with sending or receiving faxes see HP LaserJet Pro MFP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491 494 in English available in Service Access Workbench SAW or Channel Service Network CSN Faxreceive error ENWW Description An error occurred while trying to receive a fax Recommended action 1 Ask the sender to resend the fax 2 To verify that the telephone cord is securely connected disconnect and reconnect the telephone cord 3 Verify that you are using the telephone cord that came with the product 4 Open the Service menu and touch the Fax Service button Touch the Run Fax Test button This test verifies that the phone cord is conne
56. roller Fuser heater Chapter 1 Theory of operation ENWW ITB cleaning stage Step 8 ITB cleaning The ITB cleaning roller and the cleaning brush are applied with DC positive bias to charge the residual toner positive Because the primary transfer pad is also applied with DC positive bias the positively charged residual toner is reverse transferred to the photosensitive drum from the ITB surface Figure 1 18 ITB cleaning m l o Positive potential waste toner Cartridge o Negative potential waste toner i Z Photosensitive drum ITB cleaning roller Partition sheet ITB cleaning brush Sweeper strip DC bias Image formation system 21 ENWW Drum cleaning stage Not all of the toner is removed from the photosensitive drum during the transfer stage During the cleaning stage the residual or waste toner is cleared from the drum surface to prepare the surface for the next latent image formation Step 9 drum cleaning The cleaning blade scrapes the residual toner off the surface of the photosensitive drum and deposits it in the waste toner container The drum is now clear and is ready for the next image formation process Figure 1 19 Drum cleaning Cleaning blade Photosensitive drum Waste toner container Sweeper strip Developing roller engagement disengagement control The developing roller engagement disengagement control e
57. the Print All fax Reports button Print individual fax reports T 2 From the Home screen on the product control panel touch the Fax button Touch the Fax Menu button Touch the Fax Reports button Touch the name of the report that you want to print 154 Chapter2 Solve problems ENWW Set the fax error report A fax error report is a brief report that indicates the product experienced a fax job error You can set it to print after the following events e Every fax error the factory set default e Send fax error e Receive fax error e Never E NOTE With this option you will have no indication that a fax failed to be transmitted unless you print a fax activity log 1 From the Home screen on the product control panel touch the Fax button 2 Touchthe Fax Menu button 3 Touchthe Fax Reports button 4 Touchthe Fax Error Report button and then touch the printing option that you want to use Set the fax error correction mode Usually the product monitors the signals on the telephone line while it is sending or receiving a fax If the product detects an error during the transmission and the error correction setting is On the product can request that the portion of the fax be resent The factory set default for error correction is On You should turn off error correction only if you are having trouble sending or receiving a fax and you are willing to accept the errors in the transmission Turning off the setting
58. 04 3 ee ja 21 s5 es ZEROX C asos REM isi MDA AS04 lt lt Function Check gt gt sos D CPIPREGS 22 tasoa EN NE s caso Check Pad E 22 om PrrrPPEPEERFEFEBREEEBREEEDEEEEE Siem EEEEEEEEEEEEEEEEEEEEEEEEE x lt lt 10T gt m s ar ERAN 33vA won M 818 al ul Ic rava JS BERE EEE 4 lt lt CPU gt gt El 3 3 BEER zm le HP 4000 2449 1 CPU 9110 oz wanmemmr 9 G a je 5 2 ASIC DEDE ESS B la see 8 000 JNT2 1 raz UO 3 226 Py 255 as 3 VIF LSR SCN HVT TG 3110 p2 d iora al e s 22285 m pan 1 A804 m eer t BE 2 3333 a 4 DRIVER PCA SENSOR 3 dou 223 B s 4140 p EPE SET 3 5 FSR LVT DUP OPT ENV 33VA Qo7 DEVSL PES 33vA moneo EEPROM ER T MODEZ 6 FSR Dat 3 3 Pm JER DANZITUNGTMNT 288 a ica 4 eoo S FEED YD 24A always alive m 1 R31 27K0 1W 4 h a7K o 063w 24B Shutdowned by interlock SW e 3110 g torre a pa cues 270 010 23 EXEC E I Stand by sleep OFF lt lt M CPU Writer gt gt L4 3 3VA ON ON ON 3 3VB ON OFF OFF 9111 gt balks MODEO y 1 CPU m 4111 oz AM MODE y cl lt lt TEST PRINT SW gt gt 335 4111 93 pe pa gt edo mm sw a Su R19 3111 ga 2 m KansesAr 9111 g ick gt Figure 2 10 CPU diagram Diagrams CPU ASIC diagrams CD1 3 ENWW Chapter2 Solve problems 58 Figure 2 11 ASIC diagram l s q 2S222222222222 5 l 8 8 LL R123 E Ele 2 E E IR
59. 1 8029 000CN If the error persists replace the product 82 Chapter2 Solve problems ENWW 55 1 DC controller Memory Error Description The DC controller experienced a communication error Recommended action 1 Reset the printer a Turnoff the power by using the power switch and then wait at least 30 seconds b Turn on the power and wait for the product to initialize If you are using a surge protector a Power off the printer b Remove the surge protector c Plug the product directly into the wall socket and turn the product power on If the error persists replace the DC controller PC Board Assembly HP Part tt RM2 8028 000CN 57 Fan Error Turn off then on Description The product has experienced a problem with its internal cooling fan Recommended action 1 2 3 Reset the printer a Turn off the power by using the power switch and then wait at least 30 seconds b Turnonthe power and wait for the product to initialize If you are using a surge protector a Power off the printer b Removethe surge protector c Plug the product directly into the wall socket and turn the product power on If the error persists replace the internal cooling fan HP Part tt RK2 3847 000CN 58 04 Error Turn off then on ENWW Description The low voltage power supply has experienced an error Recommended action 1 Reset the printer Tools for troubleshooting 83 a Turn off the p
60. 100 Beam detect BD error 54 2500 Top of page sensor error Tools for troubleshooting 93 Table 2 18 Event log messages continued Event code Description 55 0000 Engine internal communication error 55 0601 DC controller NVRAM data error 55 0602 DC controller NVRAM access error 55 1000 DC controller memory error 57 0100 Fan motor error 57 0200 Fan error 59 0160 ITB or main motor rotation error 59 A0 59 0192 Developer motor rotation error 59 CO 59 0240 Transfer alienation failure 59 FO 59 3000 Fuser motor startup error 59 4000 Fuser motor error Table 2 19 Event log only messages Event code Description 54 2100 Beam detect BD error 54 2500 Top of page sensor error 55 4000 Engine time out warning 55 9028 DCC NVRAM restore 94 Chapter2 Solve problems ENWW Clear jams Jam locations Use this illustration to identify locations of jams In addition instructions display on the control panel to direct you to the location of jammed paper and how to clear it NOTE Internal areas of the product that might need to be opened to clear jams have green handles or green labels Document feeder 2 Duplexer 3 Output bin 4 Tray 1 5 Tray 2 6 Tray 3 Loose toner might remain in the product after a jam This problem typically resolves itself after a few sheets have been printed Experiencing frequent or recurring paper jams To reduce the nu
61. 2 Inthe Printer menu select the product 3 By default the print driver displays the Copies amp Pages menu Open the menus drop down list and then click the Finishing menu 4 Select a type from the Media Type drop down list 5 Clickthe Print button Check toner cartridge status Check the supplies status page for the following information ENWW Solve image quality problems 113 Estimated percentage of cartridge life remaining Approximate pages remaining Part numbers for HP toner cartridges Number of pages printed Use the following procedure to print the supplies status page 1 2 From the Home screen on the product control panel touch the Supplies amp button Touch the Report button to print the supplies status page Check the percent of life remaining for the toner cartridges and if applicable the status of other replaceable maintenance parts Print quality problems can occur when using a toner cartridge that is at its estimated end of life The supplies status page indicates when a supply level is very low After an HP supply has reached the very low threshold HP s premium protection warranty on that supply has ended The toner cartridge does not need to be replaced now unless the print quality is no longer acceptable Consider having a replacement available to install when print quality is no longer acceptable If you determine that you need to replace a toner cartridge or other replaceable maintenance pa
62. 381 mm 15 inches long has advanced to the top of form sensor but has not left it within the expected period of time the page has probably stalled or jammed and a Document feeder jam message will appear on the control panel display When a jam is detected the ADF stops feeding paper lowers the lift plate and displays a jam message on the control panel display ENWW ADF operation 31 32 ADF jam clearance Paper that has become jammed in the ADF can be retrieved at any of three access points the input area the scan area or the output area Figure 1 23 ADF jam clearance gt fa ADF Door Scan Area Output Area Chapter 1 Theory of operation ENWW Fax functions and operation The following sections describe the product fax capabilities Computer and network security features The product can send and receive fax data over telephone lines that conform to public switch telephone network PSTN standards The secure fax protocols make it impossible for computer viruses to be transferred from the telephone line to a computer or network The following product features prevent virus transmission e No direct connection exists between the fax line and any devices that are connected to the USB or Ethernet ports e Theinternal firmware cannot be modified through the fax connection e Allfax communications go through the fax subsystem which does not use Internet data exchange protocols PSTN operation The
63. 4 Jes JP7 A J j J ajr 211 R861 Qe gt E 6 FSR 63 Tools for troubleshooting ENWW Print quality troubleshooting tools Print quality troubleshooting tools Repetitive defects ruler Defects on product rollers can cause image defects to appear at regular intervals on the page corresponding to the circumference of the roller that is causing the defect Measure the distance between defects that recur on a page Use the following table or the repetitive defect ruler to determine which roller is causing the defect To resolve the problem try cleaning the roller first If the roller remains dirty after cleaning or if it is damaged replace the part that is indicated in Table 2 7 Repetitive defects on page 64 A CAUTION Do not use solvents or oils to clean rollers Instead rub the roller with lint free paper If dirt is difficult to remove rub the roller with lint free paper that has been dampened with water 5 NOTE The following table replaces the graphical repetitive defect ruler You can make your own ruler by using these measurements For the most accurate results use a metric ruler Table 2 7 Repetitive defects Component Distance between defects Primary charging roller 38 mm 1 5 in Transfer roller 39 mm 1 54 in Developer roller 42 mm 1 65 in Registration roller 43 mm 1 69 in Fuser film 57 m
64. Clears all faxes in memory Run Fax Test Performs a fax test to verify that the phone cord is plugged in the correct outlet and that there is a signal on the phone line A fax test report is printed indicating the results Print T 30 Trace Prints or schedules a report that is used to troubleshoot fax transmission issues Schedule options include the following o Now e Never e If Error e At End of Call Error Correction The error correction mode allows the sending device to re transmit data if it detects an error signal Fax Service Log The fax service log prints out the last 40 entries in the fax log Cleaning Page Cleans the product when specks or other marks appear on printed output The cleaning process removes dust and excess toner from the paper path When selected the product prompts you to load plain Letter or A4 paper in Tray 1 Touch the OK button to begin the cleaning process Wait until the process completes Discard the page that prints USB Speed High Full Sets the USB speed for the USB connection to the computer For the product to actually operate at high speed it must have high speed enabled and be connected to an EHCI host controller that is also operating at high speed This menu item does not reflect the current operating speed of the product Less Paper Curl Archive Print When printed pages are consistently curled this option sets the product to a mode
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66. ENWW The configuration report provides a list of the user configurable settings This report might be useful in the troubleshooting process To print the configuration report 1 From the Home screen on the product control panel touch Service 2 Touch Reports 3 Touch Configuration Report The product prints the configuration report 4 Toreturn to the Home screen touch the Home button Configuration report 43 Troubleshooting process Determine the problem source The following table includes basic questions to ask the customer to quickly help define the problem General topic Questions Environment e Is the product installed on a solid level surface 1 e sthe power supply voltage within 10 volts of the specified power source sthe power supply plug inserted in the product and the outlet stheoperating environment within the specified parameters sthe product exposed to ammonia gas such as that produced by diazo copiers or office cleaning materials NOTE Diazo copiers produce ammonia gas as part of the copying processes Ammonia gas from cleaning supplies or a diazo copier can have an adverse affect on some product components for example the toner cartridge imaging drum e sthe product exposed to direct sunlight Paper e Does the customer use only supported paper e sthe paper in good condition no curls folds or distortion sthe paper stored correctly and within environme
67. IIENIUMPRITELE E 3 Basic problem solving sccssccsccsscssscssessscsscesscessessesssessecssensesesesseceesseessecsaesaecsceesscsssesecessessecesecsesaseeesasesnesaess 40 MajOr CoITIDOFlents 5 2 oce e ex Fea a aaia TURO smeden 50 Solenoid sensors and motors eee eee a aaia aaa aea ette aA LAR AARETE ERa LEAR EAEAN 52 abl er LR NE 53 PCA fo Socks E 54 Optional 250 sheet cassette sieniin na era aa ea Ni N AEREA E EE TEE SEERE 55 Repetitive defects cci geriet A coe lode e PaRi Ec vac Su de ree ee S S Ai 64 FIP Web Services mien error cr e ree ected tre necne arkade ned nae en Vane e eae daba ness EENE ERE aat 65 hoacruieee r 66 Self Diagnostics MENU RM 66 Ig SQUU nENIIU n 67 System Setup E A ds a aaa sende a aai 69 SETVICEMEMU nina aaa 72 ER 74 QUICK Forms Me ii a 75 FAM EE 75 Copy Mei A A A A estesteacaas 77 Event log messages 55 sci aaa diaria 92 Event log only messages scescesscsscessesscessecssessecssessecsesssesoessseseesseessecasssaeesssssessseseecseeseecsseseesaesseesaessaesaess 94 Image defects table 5 cnet etse cerent Ce a de oet dd SERERE ed 107 General print quality issues csccsscsscesscessessesssessecsseseecesessecaessaecaeesacsaecssesaecssesesesseseecssessesaseseesaseseeeaess 120 Factors
68. Select where to store the product s usage data either on the supplies or not on the supplies On Supplies Volume Settings Alarm Volume Set the volume levels for the product The following options are available for each volume setting Ring Volume o Off Key Press Volume e Soft Phone Line Volume e Medium e Loud Time Date 12 Hour Sets the time and date setting for the product 24 Hour Administration Product Security e On Enable or disable the password feature o Off USB Flash Drive o On Enable or disable the USB Flash Drive feature e Off Disable Fax o On Enable or disable the fax feature e Off Scan to Network Folder e On Enable or disable the Scan to Network Folder feature e Off Scan to email o On Enable or disable the Scan to email feature e Off Color Copy e On Enable or disable color copying e Off Chapter2 Solve problems ENWW ENWW Table 2 12 System Setup menu continued Menu item Sub menu item Sub menu item Description Enable or disable the inactivity timer If a user is signed in and walks away the inactivity timer automatically signs the user out Inactivity Timer Courier Font Adjust the display font contrast Tools for troubleshooting 71 Service menu In the following table items that have an asterisk indicate the factory default setting Table 2 13 Service menu Menu item Sub menu item Sub menu item Fax Service Clear Saved Faxes Description
69. T p2 v TGENS EA diis G ea Has p I asic 122p 1SS38M FYNOTMNT 94131 ga I E naoga le iZ J133 o CJ i ki 4133 0 1 aste 18p OVINOTMNT 1489 Pp 3130 97 4131 9133 O44 mE x t A soor sovmormur 4133 044 8 E c i m DAS qw 4133 02 34 3130 92 1 INOTMNT T c120 9130 p LE me AM WAKEENG TO ceu rap 3131 Asic 102p R24 cra TT ven Ll 7 TNR1 a3i 0062w o 010 50v 9133 o risen D Heo eve cTRL20 C62 S BES 24K 0 1W E vege A eera a any HM e en Law d eae EPU 12p 9130 gi 07e 7 100P 50V rs pae TNR2 o ove i ove nm Ici rem ca s ak do pem oz 7o t id DAA i I 0 0150 ASIC 03p bh 3130 919 rent 3120 7 1 d te i HDH erre le o2 gt Asic 84p 9133 9 AN NBG m vooa 3130 y gt s I C64 CPU 41p ts ASIC 85p I 0010 s0v 3130 ga Nass o gt R119 En er ya o er 3130 ar ce Crus le TL 4121 DAG yve I Fe 9131 ASIC 878 o 9131 ASIC 104p yaa 9 Ww T TEES step ASIC B8p emm en EDS 4131 LDCTRL3O 12 mo hu ASIC 40p 3130 gar MO p ASIC 899 D deus pnei snas 0 mm 1 4130 ga BL iso sog DAS i cs2 lt lt HVT TONER EMP pam Shh bon 3130 gz indi TG 1 1 gt gt am meris R130 A d lt lt VIDEO I F 1 N gt gt M I szava ASIC 100p I gt Asic s8p 9132 ya cite 3 VIF LSR SCN HVT TG 4 3131 LBGTRLAA 001 500 aL c28 Se esca 3132 92 l SONAGU C Asic 124p 3131 3132 ga SENDES C1 ASIC 123p I I A 4131 gas 3132 p c26 Le deer I 47 SOVINOTMNT T 4191 eg id h o
70. The toner cartridge might be defective or low Replace the toner cartridge Vertical streaks or bands appear on the page AadBbca AaBbcc AaBbCa AaBblca AaBbld The toner cartridge might be defective Replace the toner cartridge The amount of background toner shading becomes unacceptable AaBbCc AaBbCc AaBbCc AaBbCc AaBbCc The paper might not meet HP specifications Use a different paper with a lighter basis weight The print density setting is too high Decrease the print density setting This decreases the amount of background shading Very dry low humidity conditions can increase the amount of background shading Check the product environment The toner cartridge might be defective or low Replace the toner cartridge Toner smears appear on the paper AaBbCc AaBhZc AaBKCC AaBbCc AaBbCc The paper might not meet HP specifications Use paper that meets HP specifications If toner smears appear on the leading edge of the paper the paper guides are dirty or debris has accumulated in the print path Clean the paper guides and the paper path The toner cartridge might be defective Replace the toner cartridge The fuser temperature might be too low In the print driver make sure the appropriate paper type is selected Solve image quality problems 121 Table 2 21 General print quality issues continued Problem
71. aessaeseeesesesessees 142 The fax does not respond e ein iei sette sedes eap e ERU e SER S 143 The fax has a dedicated phone line cessere 143 An answering machine is connected to the product 143 The Answer Mode setting is set to the Manual setting 144 Voice mail is available on the fax line essere 144 The product is connected to a DSL phone service 144 The product uses a fax over IP or VoIP phone service 144 An error message displays on the control panel eese 145 The No Fax Detected message displays esses 145 The Communication Error message appears esee 145 The Fax storage is full message appears esses 146 The Fax is busy message appears rsnvrnnnvrnnvnrnnvrnnnrennrsnnnrennnrnnnrnnnnennnesnner 146 A fax is received but does not print eese eterne nnn tnnn es 147 The Private Receive feature is on eee serene eee tee 147 Sender receives a busy signal rrnnnornnvnrnnvrnnnrrnnvennnrennnennnrsnnnennnnennvennnrennvesnnrsnnnesnnssens 147 A handset is connected to the product eese 147 A phone line splitter is being used essnronnnrrnnvonnnvennnrnnnrnnnnennvnrnnvennne
72. affecting print performance eese ee eeses esee eene ee nete enne tns ernst ensis sns nn snis sesta sonas sese 131 Physical specificati NnS ssiri cta tette te pn iaa aia 162 Operating environment specifications eese sees esses esee eene enne nn entres ntn snas nn snas sns sa senes ra sn 162 XV xvi ENWW List of figures Figure 1 1 Product components la sitiada 2 Figure 1 2 Engine control system components scsscsscssscescesscessessecssessecssescesseeseecoecseesaeessesssseasesesesseessessessesssessesseesas 7 Figure 1 3 DC controller circuit diagram leise esee seen nennen tn nnne nnstnns nns nn nn nn corno nnn nn tassi na non sa eea setas en 8 Figure 1 4 Low voltage power supply cssccsscssessscssessscsscesscescessesssescecssessecesessecsecseecoesssesaeesaesaesaesaeeaeseseessseseeesseseessseass 9 Figure 1 5 Fuser block diagram eese esses eese een enne nnn nnne enn sn nnt na sites th seb assassins tese s assess sans assis sss sn nas 10 Figure E eM I Toon de Ko Da d eiii 11 Figure 1 7 High voltage power supply c ccssssssessesecssessesssessecssessecsscesecsseseeessetecsseseecaseasecsesaeesaesaesaeesaeeaseesseessenseess 14 Figure 1 8 Laser scanner system scccsscssssesscsesscsesscsssscessscssssesescesssaesssaessssesseseseeneseesssceassecassaesseaesseaeseeaesseaeseeaeeseaeees 15 Figure 1 9 Image formation system
73. answer an incoming fax call Stamp Faxes On Sets the product to print the date time sender s phone number and page number on each page of Off incoming faxes Private Receive On Setting Private Receive to On requires you to set a product password After setting the password the Print faxes following options are set Off e Private Receive is turned on e Allold faxes are deleted from memory e Fax forwarding is set to Off and is not allowed to be changed e Allincoming faxes are stored in memory Chapter 2 Solve problems ENWW Table 2 11 Fax Setup menu continued Menu item Sub menu item Sub menu item Description Allow Fax Reprint On Sets whether incoming faxes are stored in memory for reprinting later Off Fax Tel Ring Time Sets the time in seconds after which the product should stop sounding the Fax Tel audible ring to notify the user of an incoming voice call The default setting is 20 seconds Fax Speed Fast V 34 Sets the allowed fax communication speed Medium V 17 Slow V 29 System Setup menu In the following table items that have an asterisk indicate the factory default setting Table 2 12 System Setup menu Menu item Sub menu item Sub menu item Description Language Lists available control Sets the language in which the control panel panel display displays messages and product reports languages Paper Setup Paper Size Letter Sets the size for printing internal r
74. aper type and weight that this product supports Use paper that is of good quality and free of cuts nicks tears spots loose particles dust wrinkles voids staples and curled or bent edges Use paper that has not been previously printed on Use paper that does not contain metallic material such as glitter Use paper that is designed for use in laser printers Do not use paper that is designed only for use in Inkjet printers Use paper that is not too rough Using smoother paper generally results in better print quality Step two Check the environment The environment can directly affect print quality and is a common cause for print quality or paper feeding issues Try the following solutions 116 Chapter 2 Solve problems ENWW Move the product away from drafty locations such as open windows or doors or air conditioning vents Make sure the product is not exposed to temperatures or humidity outside of product specifications Do not place the product in a confined space such as a cabinet Place the product on a sturdy level surface Remove anything that is blocking the vents on the product The product requires good air flow on all sides including the top Protect the product from airborne debris dust steam grease or other elements that can leave residue inside the product Calibrate the product to align the colors Calibration is a product function that optimizes print quality Follow these steps to resolve print
75. ax page storage in flash memory Fax pages are the electronic images of the document page They can be created in any of three ways scanned to be sent to another fax machine generated to be sent by the computer or received from a fax machine to be printed The product stores all fax pages in flash memory automatically After these pages are written into flash memory they are stored until the pages are sent to another fax machine printed on the product transmitted to the computer or erased by the user These pages are stored in flash memory which is the nonvolatile memory that can be repeatedly read from written to and erased The product has 8 MB of flash memory of which 7 5 MB is available for fax storage The remaining 0 5 MB is used for the file system and reclamation Adding RAM does not affect the fax page storage because the product does not use RAM for storing fax pages Stored fax pages The user can reprint stored fax receive pages in case of errors For a fax send the product will resend the fax in case of errors The product will resend stored fax pages after a busy signal communication error no answer or power failure Other fax devices store fax pages in either normal RAM or short term RAM Normal RAM immediately loses its data when power is lost while short term RAM loses its data about 60 minutes after power failure Flash memory maintains its data for years without any applied power Advantages of flash memory storage
76. ax to multiple recipients Fax Job Status Displays pending fax jobs and allows you to cancel pending fax jobs Fax Resolution Standard Sets the resolution for sent documents Higher resolution images have more dots per inch dpi so Fine they show more detail Lower resolution images have fewer dots per inch and show less detail but Superfine the file size is smaller Photo Receive Options Block Junk Faxes Add Number Modifies the junk fax list The junk fax list can Reprint Faxes Delete Number Delete All Numbers Print Junk Fax List contain up to 30 numbers When the product receives a call from one of the junk fax numbers it deletes the incoming fax It also logs the junk fax in the activity log along with job accounting information Prints the received faxes stored in available memory This item is available only if you have turned on the Allow Fax Reprint feature in the Fax Setup menu Forward Fax On Off Sets product to send all received faxes to another fax machine Chapter2 Solve problems ENWW Table 2 16 Fax Menu continued Menu item Sub menu item Sub menu item Description Polling Receive Allows the product to call another fax machine that has polling send enabled Phone Book Setup Individual Setup Edits the fax phone book speed dial entries Group Setup Edits the fax phone book groups Delete Entry Deletes a specific phone book entry Delete All Entries De
77. ay Dt A AAA AA ne e 98 Clearjamsin TAY ie o A darin A aa 100 Clear jams in Tray 3 accessory csscssesesscsesscsessessscessescssssesseseseesescesesceseseesessesessesseeeaseceseeseseens 101 Cle r jams in the duplexer a A dsd 103 Clear jams in the output bin esee cesse eene eene nnne nnne enn sensit tn nenne sense anos 105 Paper feeds incorrectly or becomes jammed sccescesseessessecsesseceecseessecseeseessessscessesecessesseceeessesaesseesseeaees 106 The product does not pick up paper lesse ies eese nnn sonet nn snnt tenerse tn sens 106 The product picks up multiple sheets of paper eee eene nnnn 106 Solve image quality problems elei e eseee sensere nsns nn non sinn non sinas th sesenta sess esas asses sans 107 Solve image quality problems Image defects table osrrnnrrnvrnnrrnvrnnrrnvrnnrennrnnvrnvnnnvrnnnnnvnnvnnnnnn 107 Improve print quality ee in ii Dite adl a E o DA Rete cius 112 Print from a different software program esses sees 113 Check the paper type setting for the print job essen 113 Check the paper type setting Windows eee 113 Check the paper type setting Mac OS X ooocoococnccccnococonnnonononnononnonornononnoss 113 Check toner cartridge status lees sees eene nnn nnne snn senes neni 113 Print and interpret the print quality
78. bleshooting 111 smeared toner troubleshooting 111 121 solve faxproblems 147 solve problems 39 fax 140 specifications electrical and acoustic 162 specks troubleshooting 120 spots troubleshooting 120 status supplies printing report 66 status page 46 storing fax pages in flash memory 37 streaks troubleshooting 109 121 supplies status 113 supplies status page 66 System Setup menu control panel 69 systems 7 major 2 T table repetitive defect 64 tests drumrotation 47 half self test check 48 text troubleshooting 111 122 timing diagram 56 TIP operations 33 tips iii toner loose troubleshooting 110 122 scatter troubleshooting 124 smeared troubleshooting 111 121 specks troubleshooting 120 toner cartridge checking for damage 116 toner cartridges supplies status page 66 toner cartridge status 113 touchscreen clean 130 transfer stage 19 Tray 1 clearjams 98 Tray 2 clearjams 100 Tray 3 clearjams 101 troubleshooting 39 basic steps 40 blank pages 131 checklist 40 configuration page 46 configuration report 43 control panel messages 79 control panel checks 45 curled paper 123 demo page 46 diagrams 50 drum rotation check 47 duplexing 127 eventlog 46 faded print 120 fax error correction setting 155 faxes 139 half self test 48 image formation 48 jams 95 LED diagnostics 46 lines printed pages loose toner 122 network problems 134 109 121 ENWW NVRAM initialization 158 pages not printing 131
79. cans The carriage drive moves the CIS scan head along the document length to create the image In this product a small DC motor with an optical encoder creates this motion The speed of the carriage drive is proportional to the scan resolution 300 ppi is much faster than 600 ppi and also proportional to the type of scan color scans are three times slower than monochromatic scans Image processing system formatter The formatter processes the scanner data into either a copy or a scan to the computer For copies the image data is sent directly to the product without being transmitted to the computer Depending on user selections for the copy settings the formatter enhances the scanner data significantly before sending it to the product Image data is captured at 300 ppi for copies and is user selectable for scans to the computer Each pixel is represented by 8 bits for each of the three colors 256 levels for each color for a total of 24 bits per pixel 24 bit color Scanner power on sequence of events ENWW When the product is turned on it performs the following tests Motor test The product moves the motor left and right to confirm operation It reports a scanner error 12 if no motion is detected in the motor encoder system Wall find The scan carriage moves slowly to the left while watching an encoder on the carriage motor to determine when the carriage has found the side wall or stop This enables the product to identify the
80. check 48 The half self test check determines which printing process is malfunctioning This process requires you to stop the product while it is in the process of printing a page 1 Print a Configuration page a From the Home screen on the product control panel touch the Setup Setup amp button b Touch Reports Touch Configuration Report to begin printing the report Open the toner cartridge door after the paper advances halfway through the product about five seconds after the motor begins rotating The leading edge of the paper should have advanced past the toner cartridge Remove the toner cartridge Open the toner cartridge drum shield to view the drum surface If a dark and distinct toner image is present on the drum surface assume that the first two functions of the electrophotographic process are functioning image formation and development Troubleshoot the failure as a transfer or fusing problem If there is no image on the photosensitive drum perform these checks 1 Make sure you removed the entire length of the sealing tape from the toner cartridge before you installed the cartridge Perform a drum rotation functional check to make sure that the drum is rotating Make sure that the high voltage contacts are clean and not damaged Chapter 2 Solve problems ENWW Diagrams Diagrams Formatter connections 1 Telephone line out port for attaching an extension phone answering
81. command failed verify that the network hubs are on and then verify that the network settings the product and the computer are all configured for the same network The product is using incorrect link and duplex settings for the network Hewlett Packard recommends leaving this setting in automatic mode the default setting If you change these settings you must also change them for your network New software programs might be causing compatibility problems Verify that any new software programs are correctly installed and that they use the correct print driver The computer or workstation might be set up incorrectly 1 Check the network drivers print drivers and the network redirection 2 Verify that the operating system is configured correctly The product is disabled or other network settings are incorrect 1 Review the configuration page to check the status of the network protocol Enable it if necessary 2 Reconfigure the network settings if necessary Solve wireless network problems e Wireless connectivity checklist e The product does not print after the wireless confiquration completes e Theproduct does not print and the computer has a third party firewall installed e The wireless connection does not work after moving the wireless router or product e Cannotconnect more computers to the wireless product o The wireless product loses communication when connected to a VPN e Thenetwork does not appear i
82. ct to finish the current job or to finish initializing 2 Turn the product off then on to see whether it comes to a Ready state 3 Restore the device to the factory default settings Setup Menu gt Service Menu gt Restore Defaults 4 Ifthe issue persists upgrade to the latest firmware version Document feeder mispick Reload Description The product did not pick up the paper in the document feeder Recommended action 1 Remove the paper from the document feeder tray and then reload it 2 Verify there are no staples or paper clips on the stack of originals Verify the originals are straightened out from previous folds or curl 3 Ifthe control panel displays Document Feeder Loaded when the originals are not in the input tray of the document feeder the sensor on the document feeder might be malfunctioning Replace the Scanner ADF Assembly HP Part tt CF387 60106 86 Chapter2 Solve problems ENWW Document feeder jam Clear and reload Description Paper is jammed in the document feeder tray or a sensor has incorrectly detected media in the document feeder paper path Recommended action 1 Remove the paper from the document feeder If the paper rips use a thick piece of paper such as a business card to clean the paper path 2 Reset the printer a Turn off the power by using the power switch and then wait at least 30 seconds b Turnonthe power and wait for the product to initialize 3 If the error persists
83. cted to the correct port and that the phone line has a signal The product prints a report with the results Tools for troubleshooting 87 5 6 Decrease the fax speed Ask the sender to resend the fax Turn off error correction mode Ask the sender to resend the fax Ex NOTE Turning off error correction mode might reduce the quality of the fax image Fax Send error Connect the product to a different phone line For more information about troubleshooting problems with sending or receiving faxes see HP LaserJet Pro MFP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491494 in English available in Service Access Workbench SAW or Channel Service Network CSN Additional fax sending receiving troubleshooting can be found in this document HP LaserJet Pro MFP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491494 in English available in Service Access Workbench SAW or Channel Service Network CSN Description An error occurred while trying to send a fax Recommended action 1 Resend the fax 2 Try faxing to another fax number 3 To verify that the telephone cord is securely connected disconnect and reconnect the telephone cord Check that the telephone cord is securely connected by unplugging and replugging th
84. ctions 1 Turnthe product off 2 Press and hold the lower left quadrant of the touchscreen Keep the quadrant depressed as you turn the product on 3 When the Permanent Storage Init message appears on the display release the buttons 4 When the super NVRAM initialization has been completed the product enters the generic product mode 158 Chapter 2 Solve problems ENWW Firmware upgrades Use the following references to update the product firmware depending on your configuration e HP LaserJet Enterprise and HP LaserJet Enterprise MFP Update firmware using a USB flash drive or the Embedded Web Server EWS Ref c03847902 e HP LaserJet Enterprise Printers and MFPs Update firmware using Web Jetadmin Ref c03840402 www hp com support colorljMFPM476 ENWW Firmware upgrades 159 160 Chapter2 Solve problems ENWW A Product specifications ENWW Product dimensions Power consumption electrical specifications and acoustic emissions Environmental specifications Certificate of Volatility 161 Product dimensions Table A 1 Physical specifications Product Height Depth Width Weight M476nw 499 mm 19 6 in 470 mm 18 5 in 420 mm 16 5 in 28 2 kg 62 lb M476dw M476dn 499 mm 19 6 in 484 mm 19 1 in 420 mm 16 5 in 29 3 kg 64 5 Ib Power consumption electrical specifications and acoustic emissions See www hp com go ljA00mfpM476nw regulatory environmental or www hp com go
85. ding fax machine is not set to the Photo setting or the Superfine setting a b c d From the Home screen on the product control panel touch the Setup y button Open the Fax Setup menu Open the Advanced Setup menu Open the Fax Resolution menu Select the correct setting e Cancelall fax jobs or clear the faxes from memory The Fax is busy message appears e The product cannot receive a fax while attempting to send one Cancel the fax send and try sending at a later time e Allow the product to try sending the fax again 146 Chapter 2 Solve problems ENWW A fax is received but does not print The Private Receive feature is on e When the Private Receive feature is activated received faxes are stored in memory A password is required to print the stored faxes e Enterthe password to print the fax If you do not know the password contact the product administrator E NOTE Memory errors might occur if the faxes are not printed The product will not answer if the memory is full Sender receives a busy signal A handset is connected to the product e Make sure the phone is hung up e Change the Answer Mode option to match the product setup a From the Home screen on the product control panel touch the Setup button b Open the Fax Setup menu Open the Basic Setup menu d Open the Answer Mode menu e Select the setting that matches the product setup Set the Answer Mode option to the Fax Tel s
86. duct these can damage the product Do not place liquids directly on the glass or platen They might seep and damage the product 4 Drythe glass and white plastic backing with a chamois or a cellulose sponge to prevent spotting 5 Connect the product and then use the power switch to turn on the product Clean the document feeder pickup rollers and separation pad If the product document feeder experiences paper handling problems such as jams or multiple page feeds clean the document feeder rollers and separation pad 1 Open the document feeder cover ENWW Clean the product 129 2 Usea moist lint free cloth to wipe both pickup rollers and the separation pad to remove dirt 3 Close the document feeder cover E Clean the touchscreen Clean the touchscreen whenever it is necessary to remove fingerprints or dust Wipe the touchscreen gently with a clean water dampened lint free cloth A CAUTION Use water only Solvents or cleaners can damage the touch screen Do not pour or spray water directly onto the touchscreen 130 Chapter 2 Solve problems ENWW Solve performance problems Factors affecting print performance Table 2 22 Factors affecting print performance Problem Pages print but are totally blank Cause The sealing tape might still be in the toner cartridges Solution Verify that the sealing tape has been completely removed from the toner cartridges The document might con
87. e Description The product could not detect a dial tone Recommended action 1 Check for a dial tone on the phone line by touching the Start Fax button 2 Unplug the telephone cord from both the product and the wall and replug the cord 3 Verify that you are using the telephone cord that came with the product 4 Open the Service menu and touch the Fax Service button Touch the Run Fax Test button This test verifies that the phone cord is connected to the correct port and that the phone line has a signal The product prints a report with the results 5 For more information about troubleshooting problems with sending or receiving faxes see HP LaserJet Pro MFP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491494 in English available in Service Access Workbench SAW or Channel Service Network CSN Additional fax sending receiving troubleshooting can be found in this document HP LaserJet Pro MEP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491494 in English available in Service Access Workbench SAW or Channel Service Network CSN No fax detected Description The product answered the incoming call but did not detect that a fax machine was calling Recommended action 1 Open the Service menu and touch the Fax Servic
88. e button Touch the Run Fax Test button This test verifies that the phone cord is connected to the correct port and that the phone line has a signal The product prints a report with the results For more information about troubleshooting problems with sending or receiving faxes see HP LaserJet Pro MFP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491494 in English available in Service Access Workbench SAW or Channel Service Network CSN Additional fax sending receiving troubleshooting can be found in this document HP LaserJet Pro MFP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491494 in English available in Service Access Workbench SAW or Channel Service Network CSN The product is unable to calibrate Close the lid and remove paper from the document feeder Description The default calibration values for the ADF side 2 scan head are failing to help the unit initialize ENWW Tools for troubleshooting 91 Recommended action 1 Follow the calibration instructions in this document HP LaserJet Pro MFP M425 M476 M521 and M570 Control panel error The product is unable to calibrate and or vertical streaks on back side of duplex scan or copy c03799079 in English available in Service Access Workbench SAW or Chan
89. e computer Print speeds ENWW Print speed is the number of pages that print in one minute Print speed depends on different engine process speeds or operational pauses between printed pages during normal product operation Factors that determine the print speed of the product include the following e Page formatting time Solve performance problems 131 The product must pause for each page to be formatted before it prints Complex pages take more time to format resulting in reduced print speed However most jobs print at full engine speed 35 ppm on Letter size media or 33 ppm on A4 size media Media size Legal size media reduces print speed because it is longer than the standard Letter or A4 size media A reduce print speed is used when printing on narrow media to prevent the edges of the fuser from overheating Media mode Some media types require a reduced print speed to achieve maximum print quality on that media For example glossy heavy and specialty media for example envelopes or photos require a reduced print speed To maximize the print speed for special media types ensure that you select the correct media type in the print driver Product temperature To prevent product damage print speed is reduced if the product reaches a specific internal temperature thermal slow down The starting temperature of the product ambient environment temperature and the print job size effect the number of pages that can be
90. e cord 4 Verify that you are using the telephone cord that came with the product 5 Open the Service menu and touch the Fax Service button Touch the Run Fax Test button This test verifies that the phone cord is connected to the correct port and that the phone line has a signal The product prints a report with the results 6 Connect the product to a different phone line 7 Set the fax resolution to Standard instead of the default of Fine 8 For more information about troubleshooting problems with sending or receiving faxes see HP LaserJet Pro MFP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491494 in English available in Service Access Workbench SAW or Channel Service Network CSN Additional fax sending receiving troubleshooting can be found in this document HP LaserJet Pro MFP M425 MFP M351 M451 MFP M375 M475 M476 MFP M521 and MFP M570 Solve problems sending or receiving faxes includes fax error messages c03491494 in English available in Service Access Workbench SAW or Channel Service Network CSN Fax storage is full Canceling the fax send receive Description The amount of available memory for storing faxes is insufficient to store an incoming fax 88 Chapter2 Solve problems ENWW Recommended action 1 If you are using the Private Receive feature print all received faxes to regain some mem
91. e product control panel turn on the Less paper curl setting in the Service menu Text or graphics are skewed on the printed page The paper might be loaded incorrectly or the input tray might be too full The paper might not meet HP specifications Verify that the paper is loaded correctly and that the paper guides are not too tight or too loose against the stack Use a different paper such as high quality paper that is intended for laser printers The printed page contains wrinkles or creases AaBbCc The paper might be loaded incorrectly or the input tray might be too full Turn over the stack of paper in the input tray or try rotating the paper 180 in the input tray Verify that the paper is loaded correctly and that the paper guides are not too tight or too loose against the stack There might be a jam in the paper path Clear any jams in the product The paper might not meet HP specifications Use a different paper such as high quality paper that is intended for laser printers Air pockets inside envelopes can cause them to wrinkle Remove the envelope flatten it and try printing again ENWW Solve image quality problems 123 Table 2 21 General print quality issues continued Problem Toner appears around the printed characters Cause The paper might be loaded incorrectly Solution Turn over the stack of paper in the tray If lar
92. e to the phone jack on the wall and try making a voice call Disconnect the telephone cord from both the product and the wall and reconnect the cord Make sure that you are using the telephone cord that came with the product Connect the product phone cord to a jack for another phone line Check the phone line by using the Run Fax Test option from the Service menu on the control panel a From the Home screen on the product control panel touch the Setup button b Open the Service menu Open the Fax Service menu d Select the Run Fax Test item message appears Try sending the fax again Call the recipient to ensure that the fax machine is on and ready Check that you are dialing the correct fax number Check for a dial tone on the phone line by using the Start Fax button Make sure that the phone line is working by disconnecting the product connecting a telephone to the phone line and making a voice call Connect the product phone cord to a jack for another phone line and try sending the fax again Try a different phone cord Send the fax at a later time If the error persists contact HP See www hp com support colorljMFPM476 or the support flyer that came in the product box The No fax answer message appears ENWW Try to resend the fax Call the recipient to ensure that the fax machine is on and ready Check that you are dialing the correct fax number Disconnect the product telephone cord from the wall c
93. e typis raniona ana i 78 Controlp nelmessages cuidadas Dto date eO AA acia 79 10 100X Supply Memory Error eese eerte es 79 30 XXXX Scanner Error cecinit is er deae ne eun 80 49 Error Turn Off then On ierit ene tn thee ttn tener nhe eren 80 50 XXXX Fuser Error coe ae enean ca ees aain ioa na oaa opened aao ataih 81 51 XX and 52 XX Error To continue turn off then on esses 82 54 0100 54 1599 EFEOE iii eoe iii 82 55 1 DC controller Memory Error eese eene 83 57 Fan Error Turn off then on orescence 83 58 04 Error Turn off then Om risici 83 59 XXXX Error Turn off then on eese eeee eene tne tn enne nete 84 60 XXXX Error Turn off then on eese eese sees eese etes tentent 85 79 Error Turn off then on iude t en tene etn ee ERI eng 85 Device is busy Try again later eese eene eren ne 86 Document feeder mispick Reload eese 86 Document feeder jam Clear and reload esses 87 ENWW ENWW Fax is busy Canceled send sssccscsssssscssessscsssssscessesscesseseesseeseeesseseesees 87 Fax receive OO a c 87 Fax Send error ee RR Ie ERR EI T AEE ne 88 Fax storage is full Canceling the fax send receive ess 88 Front door Open ee nO S EG ERI I B E 89 Jam in Tray 1 Clear jam and then pre
94. each version is compliant with the 2 4 wire phone jack system from the respective country region Safety isolation The most important function of the fax card is the safety isolation between the high voltage transient prone environment of the telephone network TNV telephone network voltage and the low voltage analog and digital circuitry of the formatter SELV secondary extra low voltage This safety isolation provides both customer safety and product reliability in the telecom environment Any signals that cross the isolation barrier do so magnetically The breakdown voltage rating of barrier critical components is greater than 5 kV Safety protection circuitry In addition to the safety barrier the fax card protects against over voltage and over current events Telephone over voltage events can be either differential mode or common mode The event can be transient in nature a lightning induced surge or ESD or continuous a power line crossed with a phone line The fax card protection circuitry provides margin against combinations of over voltage and over current events Common mode protection is provided by the selection of high voltage barrier critical components transformer and relay The safety barrier of the fax card PCB traces and the clearance between the fax card and surrounding components also contribute to common mode protection A voltage suppressor a crowbar type SIDACTOR provides differential protection This produc
95. elf Diagnostics menu Select the Run Fax Test option The product prints a fax test report The report contains the following possible results o Pass The report contains all of the current fax settings for review 9 Fail The report indicates the nature of the error and contains suggestions for how to resolve the issue 3 Verify that the product firmware is current a Print a configuration page from the control panel Reports menu to obtain the current firmware date code b Goto www hp com 1 Click the Support amp Drivers link 2 Click the Download drivers and software and firmware link option 3 In the For product box enter the product model number and then click the Go button 4 Click the link for your operating system 5 Scroll to the Firmware section of the table ENWW Solve fax problems 139 e Ifthe listed version matches the version on the configuration page you have the most current version e If the versions are different download the firmware upgrade file and upgrade the firmware on the product following the on screen instructions Ey NOTE The product must be connected to a computer with internet access to upgrade firmware e Resend the fax 4 Verify that the fax was set up when the product software was installed From the computer in the HP program folder run the Fax Setup Utility 5 Verify that the telephone service supports analog fax e If using ISDN or digital PBX contact your ser
96. eports faxes or any print job that does not specify a size A4 NOTE The default setting is determined by the Legal choice of location during the initial product setup Paper Type Lists available paper Sets the type for printing internal reports faxes or types any print job that does not specify a type Print Density Determines how much toner to apply to thicken lines and edges Energy Settings Sleep Auto Off After 5 Minutes Specifies the amount of idle time before the product enters sleep mode 15 Minutes 30 Minutes 60 Minutes Wake Auto On Events Control Panel Touch USB Job LAN Job Wireless Job Fax Select the events that bring the product out of sleep mode Tools for troubleshooting 69 70 Table 2 12 System Setup menu continued Menu item Sub menu item Sub menu item Description Auto Off Manual On Never Set the amount of elapsed time before the product After turns itself off 2 Hours 4 Hours 8 Hours Supply Settings Black Cartridge Very Low Setting e Stop The product stops printing until you Color Cartridges replace the toner cartridge Prompt The product stops printing and prompts you to replace the toner cartridge You can acknowledge the prompt and continue printing e Continue The product alerts you that the toner cartridge is very low but it continues printing Low Threshold Enter a percentage for the low threshold setting Store Usage Data Not on Supplies
97. er glass and the white plastic backing underneath the scanner lid with a soft cloth or sponge that has been moistened with nonabrasive glass cleaner A CAUTION Do not use abrasives acetone benzene ammonia ethyl alcohol or carbon tetrachloride on any part of the product these can damage the product Do not place liquids directly on the glass or platen They might seep and damage the product Dry the glass and white plastic parts with a chamois or a cellulose sponge to prevent spotting Connect the power cable to an outlet and then press the power button to turn the product on Visually inspect the toner cartridge 1 2 3 Remove the toner cartridge from the product and verify that the sealing tape has been removed Check the memory chip for damage Examine the surface of the imaging drum on the toner cartridge A CAUTION Do not touch the roller imaging drum on the cartridge Fingerprints on the imaging drum can cause print quality problems If you see any scratches fingerprints or other damage on the imaging drum replace the toner cartridge If the imaging drum does not appear to be damaged rock the toner cartridge gently several times and reinstall it Print a few pages to see if the problem has resolved Check paper and the printing environment Step one Use paper that meets HP specifications Some print quality problems arise from using paper that does not meet HP specifications Always use a p
98. ersists replace the Fusing Assembly ENWW Tools for troubleshooting 81 4 e Fusing assembly For 110 VAC HP Part tt RM2 5476 000CN e Fusing assembly For 220 VAC HP Part tt RM2 5478 000CN If the error persists replace the product 51 XX and 52 XX Error To continue turn off then on Description An error with the laser scanner assembly has occurred in the product XX 00 23 Laser Scanner malfunction Recommended action 1 Reset the printer a Turn off the power by using the power switch and then wait at least 30 seconds b Turn on the power and wait for the product to initialize If you are using a surge protector a Poweroffthe printer b Remove the surge protector c Plugthe product directly into the wall socket and turn the product power on If the error persists replace the product 54 0100 54 1599 Error Description The Color Plane Registration Sensor has experienced an error Recommended action 1 Reset the printer a Turn off the power by using the power switch and then wait at least 30 seconds b Turn on the power and wait for the product to initialize If you are using a surge protector a Poweroffthe printer b Remove the surge protector c Plug the product directly into the wall socket and turn the product power on Reseat sensor connections on the DC Controller If the error persists replace the Color Plane Registration Sensor Assembly HP Part RM
99. es a prefix turn on the Dial Prefix option or include the prefix in the speed dial number a From the Home screen on the product control panel touch the Setup button b Open the Fax Setup menu Open the Basic Setup menu d Open the Dial Prefix menu e Select the On setting e Setup all entries in the group with speed dial entries a Open an unused speed dial entry b Enter the fax number for the speed dial c Touch the OK button to save the speed dial Receive a recorded error message from the phone company when trying to send a fax e Make sure you dial the fax number correctly and make sure that the phone service is not blocked For example some phone services might prevent long distance calling e Ifan outside line requires a prefix turn on the Dial Prefix option or include the prefix in the speed dial number 152 Chapter 2 Solve problems ENWW a From the Home screen on the product control panel touch the Setup amp X button b Open the Fax Setup menu Open the Basic Setup menu d Open the Dial Prefix menu e Select the On setting E NOTE To send a fax without a prefix when the Dial Prefix option is turned on send the fax manually e Senda fax to an international number a Ifa prefix is required manually dial the telephone number with the prefix b Enter the country region code before dialing the phone number c Wait for pauses as you hear the tones on the phone d Send the fax man
100. et to the Manual setting e Touchthe Start Fax button on the product control panel Voice mail is available on the fax line e Adda distinctive ring service to your telephone line and change the Distinctive Ring setting on the product to match the ring pattern supplied by the telephone company Contact your telephone company for information a From the Home screen on the product control panel touch the Setup AX button b Open the Fax Setup menu c Open the Basic Setup menu d Open the Distinctive Ring menu e Select the correct setting Buy a dedicated line for faxing e Setthe Answer Mode option to the Manual setting a From the Home screen on the product control panel touch the Setup y button b Open the Fax Setup menu Open the Basic Setup menu d Open the Answer Mode menu e Select the Manual setting SX NOTE You must be present to receive faxes The product is connected to a DSL phone service e Check the installation and features ADSL modem requires a high pass filter on the phone line connection to the product Contact your DSL service provider for a filter or buy a filter e Verify that the filter is connected e Replace the existing filter to make sure that it is not defective The product uses a fax over IP or VoIP phone service e Set the Fax Speed option to the Slow V 29 or Medium V 17 setting a From the Home screen on the product control panel touch the Setup button b Open the Fa
101. etting to automatically receive faxes The Fax Tel setting automatically detects whether the incoming transmission is a fax or a voice call and routes the call to the appropriate device A phone line splitter is being used e fyouareusing a phone line splitter remove the splitter and set up the phone as a downstream phone e Make sure the phone is hung up e Make sure the phone is not being used for a voice call when faxing No dial tone e If using a phone line splitter remove the phone line splitter and set up the phone as a downstream phone Cannot send or receive a fax on a PBX line e Ifyou are using a PBX phone line contact your PBX administrator to configure an analog fax line for your product Solve problems sending faxes This section will discuss the following ENWW Solve fax problems 147 An error message displays on the control panel The control panel displays a Ready message with no attempt to send the fax The control panel displays the message Storing page 1 and does not progress beyond that message Faxes can be received but not sent Product is password protected Unable to use fax functions from the control panel Unable to use speed dials Unable to use group dials Receive a recorded error message from the phone company when trying to send a fax Unable to send a fax when a phone is connected to the product An error message displays on the control panel The Communication Error message appears Allow
102. ffectively doubles the standard memory through a variety of font and data compression methods E NOTE The MEt is available only in PCL mode it is not functional when printing in PS mode Wireless radio Wireless products contain a wireless card to enable 802 11b g n wireless communication PJL overview Printer job language PJL is an integral part of configuration in addition to the standard printer command language PCL With standard cabling use PJL to perform a variety of functions e Dynamic 1 0 switching The product can be configured with a host on each I O by using dynamic 1 0 switching Even when the product is offline it can receive data from more than onel O simultaneously until the 1 0 buffer is full e Context sensitive switching The product can automatically recognize the personality PS or PCL of each job and configure itself in that personality e Isolation of print environment settings from one print job to the next For example if a print job is sent to the product in landscape mode the subsequent print jobs are printed in landscape mode only if they are formatted for it ENWW Formatter control system 5 6 LEDM overview The low end data model LEDM provides one consistent data representation method and defines the dynamic and capabilities tickets shared between clients and devices as well as the access protocol event security and discovery methods ACL overview The advanced contr
103. formed characters AGBPEG AGBP ZNaBIpcc AGBP AGBPLEG AGBP The paper might not meet HP specifications Use a different paper such as high quality paper that is intended for laser printers If characters are incorrectly formed so that they produce a wavy effect the laser scanner might need service Replace the laser scanner 122 Chapter2 Solve problems ENWW Table 2 21 General print quality issues continued Problem The printed page is curled or wavy Cause The product is not set to print on the type of paper on which you want to print Solution In the print driver select the Paper Quality tab and set Paper Type to match the type of paper on which you are printing Print speed might be slower if you are using heavy paper If the problem persists select a paper type that uses a lower fuser temperature such as transparencies or light paper The paper might have been in the input tray too long Turn over the stack of paper in the tray Also try rotating the paper 180 in the input tray The paper might not meet HP specifications Use a different paper such as high quality paper that is intended for laser printers Both high temperature and humidity can cause paper curl Check the product environment The fuser temperature might be curling the paper Select a paper type that uses a lower fuser temperature such as transparencies or light paper At th
104. g the product directly into the wall socket and turn the product power on 3 Ifthe error persists replace the appropriate motor depending on the error code 84 Chapter2 Solve problems ENWW e For59 3XXX and 59 4XXX errors replace the Feed Motor Assy HP Part RM1 5419 000CN e For59 8000 errors replace the Drum Motor DC HP Part H RL1 1800 000CN e For 59 9000 errors the Developer Motor DC HP Part RL1 3053 000CN 4 Ifthe error persists replace the Driver PCA Assembly HP Part RM1 8032 000CN 5 If the error persists replace the DC controller HP Part RM2 8028 000CN 6 Ifthe error persists replace the product 60 XXXX Error Turn off then on Description One of the trays has experienced a tray lift error e 60 0200 Tray 2 lift error e 60 0300 Tray 3 lift error Recommended action 1 Reset the printer a Turnoff the power by using the power switch and then wait at least 30 seconds b Turnonthe power and wait for the product to initialize 2 Ifyou are using a surge protector a Power off the printer b Remove the surge protector c Plugthe product directly into the wall socket and turn the product power on 3 Ifthe error persists replace parts as follows e For 60 0200 error replace the Tray 2 Paper Cassette HP Part tt RM2 5469 000CN e For 60 0300 error replace the 3rd Paper Tray Main Body HP Part tt CE863 67901 4 If the 60 0200 error persists replace the Paper Pick up Assembly HP Part
105. ge amounts of toner have scattered around the characters the paper might have high resistivity Use a different paper such as high quality paper that is intended for laser printers An image that appears at the top of the page in solid black repeats farther down the page in a gray field AaBbCc 124 Chapter2 Solve problems Software settings might affect image printing In your software program change the tone darkness of the field in which the repeated image appears In your software program rotate the whole page 180 to print the lighter image first The order of images printed might affect printing Change the order in which the images are printed For example have the lighter image at the top of the page and the darker image farther down the page A power surge might have affected the product If the defect occurs later in a print job turn the product off for 10 minutes and then turn on the product to restart the print job ENWW Solve paper handling problems Product feeds incorrect page size Product feeds incorrect page size Cause The correct size paper is not loaded in the tray Solution Load the correct size paper in the tray The correct size paper is not selected in the software program or printer driver Confirm that the settings in the software program and printer driver are correct because the software program settings override the printer driver a
106. ght or faded on entire page Print is light or faded in a particular color Cause Poor contacts exist on the ITB unit and the product grounding unit Solution Clean the grounding contacts If the problem remains after cleaning check the contacts for damage Replace any deformed or damaged parts Poor secondary transfer contacts exist on the secondary transfer roller and the ITB Poor primary transfer bias contacts on the ITB unit and product Clean the contacts If the problem remains after cleaning check the contacts for damage Replace any deformed or damaged parts Clean the contacts of the color that produces the light print If the problem remains after cleaning check Poor primary charging bias contacts with the toner cartridge and product the contacts for damage Replace any deformed or damaged parts Poor developing bias contacts with the toner cartridge and product Image is too dark The RD sensor is defective Replace the RD sensor Page is blank E The high voltage power supply lower is defective no developing bias output Replace the high voltage power supply lower ENWW Solve image quality problems 107 Table 2 20 Image defects table continued Problem Sample Cause Solution The page is all black or a solid Poor contact exists in the Clean each contact of the color that color primary charging bias or produces the all black or solid color If
107. gine control system 9 Power saving The Sleep Delay feature reduces power consumption when the product has been inactive for an extended period You can set the length of time before the product enters sleep mode See Sleep Delay on page 4 The Auto Power Down feature turns the product off after a certain length of time You can adjust this time setting Fuser control The power supply unit controls the temperature in the fuser unit The product uses an on demand fusing method Figure 1 5 Fuser block diagram Fuser sleeve I eae erd 7 Power supply unit Fuser control circuit FUSER HEATER CONTROL signal FUSER TEMPERATURE signal Pressure roller The fuser is composed of the following components e Heater 100V model H120 200V model H220 Heats the fuser sleeve e Thermistors o Main thermistor TH801 Detects the center temperature of the fuser heater contact type o Sub thermistor 1 TH802 Detects the right side temperature of the fuser heater contact type o Sub thermistor 2 TH803 Detects the left side temperature of the fuser heater contact type e Thermal fuse FU1 Prevents an abnormal temperature rise of the fuser heater These fuser temperature controls are performed by the fuser control circuit and the fuser heater safety circuit which receive commands from the DC controller 10 Chapter Theory of operation ENWW Fuser control circuit The fuser contr
108. h HP tough paper provides better results than with plain paper You might need to execute the cleaning process several times to remove all contaminants on the fuser Repetitive horizontal lines See repetitive image defect ruler Clean the indicated roller If the contaminant does not come off replace appropriate roller or assembly Pages have flecks of toner ENCOUNTER Execute a cleaning page to clean the AQBHCE contaminant off the fuser The AaBOGGC cleaning page might need to be run AdBboGe several time to clean the fuser Do not JE replace the fuser AOBBCE AGBECE NOTE Cleaning the fuser with HP tough paper provides better results than with plain paper You might need to execute the cleaning process several times to remove all contaminants on the fuser Pages have one or more skewed color planes can appear on the right or left side of the page Remove and then reinstall the toner cartridge associated with the defect Improve print quality If the product is having print quality problems try the following solutions in the order presented to resolve the issue If the product is having scan fax or copy quality problems try the following solutions and also see Improve scan quality Improve fax quality or Improve copy quality for further solutions e Print from a different software program e Check the paper type setting for the print job e Checktoner cartridge status
109. h control 36 HP Jetdirect print server NVRAM initialization 158 HP Web Services menu control panel 65 I image formation cleaning stage 22 developing stage 18 fusing stage 20 latent image stage 17 process 16 systems 16 transfer stage 19 image quality troubleshooting defects 64 image quality issues examples and solutions 107 image transfer stage 19 image formation system testing 48 initialization NVRAM 158 interface ports locating 49 ITB assembly diagrams 50 J jam detection detection operations 25 jams causes of 95 document feeder clearing 97 tracking number of 66 ENWW Jetdirect print server NVRAM initialization 158 L laser beam exposure stage 18 scanner system operations 15 latent image formation stage 17 LDAP gateway validating 157 LEDM low end data model 6 LEDs troubleshooting 46 light print troubleshooting 107 120 lightness faded print troubleshooting 120 line current control fax 36 lines troubleshooting 109 121 printed pages 121 logs fax error 155 printing all 154 loose toner troubleshooting 110 122 low end data model LEDM 6 M media feed stage 19 jam detection operations 25 memory flash fax 37 NVRAM initialization 158 menu structure printing 42 menus control panel demo page printing 66 fax reports printing 66 map printing 66 messages control panel 79 motors doesn t rotate 40 location 52 N network configuring 74 network port locating 49 ENWW Network Setup
110. hat the product is attached to the correct network port using a cable of the correct length Verify that cable connections are secure Look at the network port connection on the back of the product and verify that the amber activity light and the green link status light are lit If the problem continues try a different cable or port on the hub The computer is using the incorrect IP address for the product 1 Open the printer properties and click the Ports tab Verify that the current IP address for the product is selected The product IP address is listed on the product configuration page If you installed the product using the HP standard TCP IP port select the box labeled Always print to this printer even if its IP address changes 134 Chapter2 Solve problems ENWW 3 Ifyou installed the product using a Microsoft standard TCP IP port use the hostname instead of the IP address 4 Ifthe IP address is correct delete the product and then add it again The computer is unable to communicate with the product 1 Testnetwork communication by pinging the network a Open a command line prompt on your computer For Windows click Start click Run type cmd and then press Enter b Type ping followed by the IP address for your product For Mac OS X open the Network Utility and then supply the IP address in the correct field in the Ping pane c Ifthe window displays round trip times the network is working 2 If the ping
111. he Clear Saved Faxes item e Divide the large fax job into smaller sections and then fax them individually Scanner error o X Verify that the paper meets product size requirements The product does not support pages longer than 381 mm 15 in for faxing e Copy or print the original onto letter A4 or legal size paper and then resend the fax The control panel displays a Ready message with no attempt to send the fax e Check the fax activity log for errors 150 Chapter 2 Solve problems ENWW a Touch the Fax button and then touch the Fax Menu button b Open the Fax Reports menu Open the Fax Activity Log menu d Select the Print Log Now option e If a phone is connected to the product make sure that the phone is hung up e Disconnect all other lines between the fax and the product e Connect the product directly into the wall telephone jack and resend the fax The control panel displays the message Storing page 1 and does not progress beyond that message e Delete stored faxes from memory a From the Home screen on the product control panel touch the Setup EN button b Open the Service menu Open the Fax Service menu d Select the Clear Saved Faxes item Faxes can be received but not sent Send fax and nothing happens 1 Check for a dial tone on the phone line by using the Start Fax button 2 Turnthe product off then on 3 Usethe control panel or the HP Fax Setup Wizard to configure the fax time
112. he current product status or situations that might require action Alert and warning messages appear temporarily and might require you to acknowledge the message by pressing the OK button to resume or by pressing the CANCEL X button to cancel the job With certain warnings the job might not complete or the print quality might be affected If the alert or warning message is related to printing and the auto continue feature is on the product will attempt to resume the printing job after the warning has appeared for 10 seconds without acknowledgement Critical error messages can indicate some kind of failure Turning off and then turning on the power might fix the problem If a critical error persists the product might require service Ey NOTE Part numbers can change without notice Always verify part numbers in HP PartSurfer Control panel messages 10 100X Supply Memory Error Description A specific toner cartridge has a faulty or missing memory chip e 10 1000 black cartridge e 10 1001 cyan cartridge e 10 1002 magenta cartridge e 10 1003 yellow cartridge Recommended action 1 If non HP toner cartridges are in use advise the customer to replace the cartridges with HP original supplies To indentify HP original supplies refer to HP Color LaserJet and LaserJet Printers How to Identify HP Original Cartridges c02603087 in English available in Service Access Workbench SAW or Channel Service Network CSN 2 Check the me
113. he fragments are removed before you resume printing If most of the sheet of paper has been pulled inside the product or no paper is visible continue with the following steps 98 Chapter2 Solve problems ENWW 2 Pullouttray 2 and place it on a flat surface 3 Lower the jam access tray Q SSA 1 4 Removethe jammed sheet by pulling it straight out SSA 5 Push the jam access tray up to close it and then replace tray 2 ENWW Clearjams 99 Ey NOTE To close the tray push in the middle or with even pressure on both sides Avoid pushing on one side only Clear jams in Tray 2 1 Opentray 2 2 Remove the jammed sheet by pulling it straight out 3 Close tray 2 100 Chapter 2 Solve problems ENWW Clear jams in Tray 3 accessory 1 Opentray 3 2 Remove the jammed sheet by pulling it out 3 Close tray 3 ENWW Clearjams 101 4 Opentherear door CAUTION The fuser located in the back of the product is hot Wait for the fuser to cool before continuing 5 Removeany visible paper from the product 6 Close the rear door 102 Chapter2 Solve problems ENWW Clear jams in the duplexer 1 Open the rear door CAUTION The fuser located in the back of the product is hot Wait for the fuser to cool before continuing 2 If necessary pull the guide 1 and remove any visible paper 2 from the bottom of the delivery area 3 f
114. he fuser ENWW Solve image quality problems 109 Table 2 20 Image defects table continued Problem A horizontal white line displays on the page Image in a particular color does not print in the correct color Cause Repetitive horizontal white lines appear Solution Use the repetitive defects ruler to identify the dirty roller Clean the roller If the roller cannot be cleaned replace the roller Horizontal scratches are present on the photosensitive drum Replace the toner cartridge of the color that matches the defect Scratches are present on the circumference of the ITB Poor contact exists in the primary charging bias or developing bias contacts between the toner cartridge and the product Replace the ITB Clean each contact of the color that produces the missing color If the problem remains after cleaning check the contacts for damage Replace any deformed or damaged parts The toner cartridge primary charging roller developing roller or photosensitive drum is defective Replace the toner cartridge of the color that matches the defect The high voltage power supply lower is defective no primary charging bias or developing bias output Replace the high voltage power supply lower The laser scanner unit is defective Replace the laser scanner assembly Dropouts appear i E Bil The secondary transfer roller is deformed or has de
115. he line supports fax e Turnoffthe Error Correction setting a Open the Setup Menu menu b Open the Service menu Open the Fax Service menu d Open the Error Correction menu e Select the Off setting E NOTE This can reduce image quality e Use white paper for the original Do not use colors such as gray yellow or pink e Increase the Fax Speed setting a Open the Setup Menu menu b Open the Fax Setup menu Open the Advanced Setup menu d Open the Fax Speed menu e Select the correct setting e Divide large fax jobs into smaller sections and then fax them individually e Change the fax settings on the control panel to a lower resolution a Open the Setup Menu menu b Open the Fax Setup menu Open the Advanced Setup menu d Open the Fax Resolution menu e Select the correct setting Fax quality is poor ENWW Fax is blurry or light e Increase fax resolution when sending faxes Resolution does not affect received faxes a Open the Setup Menu menu b Open the Fax Setup menu Open the Advanced Setup menu d Open the Fax Resolution menu e Select the correct setting Solve fax problems 141 E NOTE Increasing resolution slows transmission speed e Turnonthe Error Correction setting from the control panel a Open the Setup Menu menu b Open the Service menu c Open the Fax Service menu d Open the Error Correction menu e Select the On setting e Check
116. i lt lt SCANNER MOTOR gt gt mA lt lt LASER 1 N gt gt T CD1 5 ENWW Chapter 2 Solve problems 60 Driver PCA diagram Diagrams Figure 2 13 Driver PCA diagram 7 6 5 4 3 l 2 1 i 538 yy p mias RDSCPR g C97 4 al matt D cru 62p E al AL coa E Sai R185 la T 100 sovnor mmr gt ANN og 33v8 8 t o 3 E RAS use ag 1 A NS Aw GPU 03p 9 iik cos 3 Seo dad I 3140 928 aiaei oozzusownomnr J ol cos FEEDME ed T t00P sovmormnr pi ERAN E 1 J140 922 FEEPMIOA cPU 60p 411 ot ASIC 44p a coo 9140 928 FEEDMNA C cpu op mum PS R37 3140 924 FEEOMIOS C4 cpU sep ey taal dida ioi 1 o ASIC 45p 160 0 1W 160 0 1W J140 922 EEEDMHB 7 ice szp 3140 922 REGIMA cpu aop EE 4162 4161 ya RDSGAINO pet 9140 921 REGIMB C cpu 29p d O erum Rist RDSGAIN1 ANE R187 3140 922 REGIMIOA 4 CPU 84p 3161 o lt ceu sp 9162 02 apes Dennis teria Q1 a A Cae 4140 912 BEGIMHA 7 CPU 53p det zsesenmeo RS E eg car T 4166 0 7 J140 912 RESIMIOS cpus 50 z acia E 1000PSOVINOTMNT oy a 2 TT eere vegane a rear EE r DAT R160
117. ical streaks through the image The calibration process identifies any bad pixels and enables the image formatter to recreate the lost information from adjacent pixels Extreme cases of this problem can appear as large vertical streaks or image smears The user has no control over the calibration process itself or this pixel replacement process Copy or scan sequence of events To create an accurate rendition of a document the scanner must be calibrated for the requested operation If the user selects a scan at 600 ppi color the flatbed image scanner calibrates for that specific operational mode Subsequently the flatbed image scanner automatically re calibrates for the next requested operation Calibration does not occur for every new copy request Normal sequence of operation for a flatbed copy or scan job includes the following 1 LEDsilluminate 2 Carriage motion begins moving the CIS scanner toward the right 3 Image capture continues for the entire page or length requested in a scan operation 4 Carriagereturns to the home position on the left Scanner operation At power on the CIS scanner moves slowly to the left The motor encoder is monitored to determine when the scanner has found the left side wall The scanner then moves to the right and identifies the document origin position of the original If the document origin cannot be located a default position is used Chapter 1 Theory of operation ENWW When a copy scanis in
118. igh Voltage Power Supply The engine controller PCA is defective Replace the engine controller PCA When turned on the control panel illuminates but the main motor does not rotate The product turns on and the motor rotates but the control panel lights do not illuminate The toner cartridge door is open Close the toner cartridge door A page is jammed in the paper path The cable is not connected correctly Clear all paper from the paper path and make sure that all sensors are working correctly Reconnect the motor cable The motor is not mounted correctly in the product chassis Verify that the motor is connected correctly and that it rotates freely The engine controller PCA is defective Replace the engine controller PCA The feed motor is defective The control panel is disconnected or the connection is not secure Replace the motor Verify that the control panel USB cable is connected to the formatter The product firmware is out of date or corrupted Update the product firmware The control panel is defective Replace the control panel The formatter is defective Replace the formatter The product is on but the control panel indicates that the product is not in the ready state The product has an internal error that was detected during the Power On Self Test sequence Consult the list of control panel messages to identify and correct
119. ignal quality or interference might be delaying print jobs ENWW Solve performance problems 133 Solve connectivity problems Solve USB connection problems If you have connected the product directly to a computer check the cable Verify that the cable is connected to the computer and to the product Verify that the cable is not longer than 5 m 16 4 ft Try using a shorter cable Verify that the cable is working correctly by connecting it to another product Replace the cable if necessary Solve wired network problems Check the following items to verify that the product is communicating with the network Before beginning print a configuration page from the product control panel and locate the product IP address that is listed on this page Poor physical connection The computer is using the incorrect IP address for the product The computer is unable to communicate with the product The product is using incorrect link and duplex settings for the network New software programs might be causing compatibility problems The computer or workstation might be set up incorrectly The product is disabled or other network settings are incorrect E NOTE HP does not support peer to peer networking as the feature is a function of Microsoft operating systems and not of the HP print drivers For more information go to Microsoft at www microsoft com Poor physical connection 1 2 3 4 Verify t
120. ing a call Plug the product phone cord into a jack for another phone line Try a different phone cord Set the Fax Speed option to the Slow V 29 or Medium V 17 setting a From the Home screen on the product control panel touch the Setup button b Open the Fax Setup menu Open the Advanced Setup menu d Open the Fax Speed menu e Select the correct setting Turn off the Error Correction feature to prevent automatic error correction E NOTE Turning off the Error Correction feature can reduce image quality Solve fax problems 145 From the Home screen on the product control panel touch the Setup y button Open the Service menu Open the Fax Service menu Open the Error Correction menu Select the Off setting e Printthe Fax Activity Log report from the control panel to determine if the error occurs with a specific fax number a Touch the Fax button and then touch the Fax Menu button b Open the Fax Reports menu Open the Fax Activity Log menu d Select the Print Log Now option e Ifthe error persists contact HP See www hp com support colorljMFPM476 or the support flyer that came in the product box The Fax storage is full message appears e Turnthe product off then on o Print all of the faxes and then have the sender resend the fax e Ask the sender to divide a large fax job into smaller sections and then fax them individually e Make sure that the resolution of the sen
121. inted earlier for indications of a failure in a particular area The report may indicate whether the error is caused by a network problem or a problem with the job 5 Ifthe error persists replace the product Ey NOTE If the 49 Error is caused by the network or a specific file do not replace the product it will not resolve the issue Instead attempt to isolate the issue in a way that demonstrates the error is caused by something in the environment 6 Ifthe error persists after product replacement escalate to Level 3 so that Technical Marketing has visibility to the problem 50 XXXX Fuser Error Description The product has experienced an internal fuser hardware error e 50 0000 Generic Fuser error e 50 1000 Low Fuser temperature error e 50 1100 High sub thermistor area 3 fuser error e 50 1200 Low sub thermistor area 3 fuser error e 50 2000 Slow fuser error e 50 3000 High fuser temperature error e 50 4000 Fuser drive circuit error e 50 7000 Fuser open error e 50 8000 Low sub thermistor fuser error e 50 9000 High sub thermistor fuser error Recommended action 1 Reset the printer a Turn off the power by using the power switch and then wait at least 30 seconds b Turn on the power and wait for the product to initialize 2 Ifyou are using a surge protector a Poweroff the printer b Remove the surge protector c Plug the product directly into the wall socket and turn the product power on 3 Ifthe error p
122. itiated the product first checks to determine if a document is present in the ADF If an ADF document is detected the scanner moves to the left side of the scan tub and scans the image as the document is fed through the ADF If no document is detected in the ADF the scanner acquires the image from the flatbed by scanning while moving from left to right across the flatbed glass ENWW Scanning and image capture system 29 ADF operation The ADF will not function when the ADF cover is open The paper path is incomplete if the ADF cover is lifted from the glass When the product duplexes from the ADF the paper moves through one time because the ADF has a CIS scanner for side two which is scanned simultaneously with side one The standard operation of the ADF consists of the standby paper loading mode pick feed and lift steps e Standby paper loading mode In standby mode the lift plate is in the down position When a document is loaded into the input tray the paper present sensor detects its presence When a copy scan is initiated the ADF motor engages the gear train and raises the lift plate until the document makes contact with the pick roller The ADF then begins the pick feed and lower sequence o Pick The pick roller rotates and moves one or more sheets forward into the ADF where the sheets engage with the separation roller The separation roller contacts the ADF separation pad which separates multiple sheets into a
123. jobs from the print queue 132 Chapter2 Solve problems ENWW 5 From the list of printers on your computer right click the name of this product click Properties and open the Ports tab e Ifyou are using a network cable to connect to the network make sure the printer name listed on the Ports tab matches the product name on the product configuration page e Ifyou are using a USB cable and are connecting to a wireless network make sure the box is checked next to Virtual printer port for USB 6 If you are using a personal firewall system on the computer it might be blocking communication with the product Try temporarily disabling the firewall to see if it is the source of the problem 7 f your computer or the product is connected to a wireless network low signal quality or interference might be delaying print jobs The product prints slowly If the product prints but it seems slow try the following solutions 1 Make sure the computer meets the minimum specifications for this product For a list of specifications go to this Web site www hp com support colorljMFPM476 2 When you configure the product to print on some paper types such as heavy paper the product prints more slowly so it can correctly fuse the toner to the paper If the paper type setting is not correct for the type of paper you are using change the setting to the correct paper type 3 f your computer or the product is connected to a wireless network low s
124. ke sure the paper guides in the tray are adjusted correctly for the size of paper 3 If the jam persist replace the Tray 2 pick up roller HP Part RM1 8047 000CN Tools for troubleshooting 89 Jam in Tray 3 Clear jam and then press OK Description The product has detected a jam in Tray 3 Recommended action 1 Clear the jam from the area indicated on the product control panel and then follow the control panel instructions 2 Make sure the paper guides in the tray are adjusted correctly for the size of paper 3 Ifthe jam persist replace the Tray 3 pick up roller HP Part RM1 8047 000CN Load paper Description The tray is empty Recommended action Load paper in the tray Load Tray 1 TYPE SIZE Press OK to use available media Description Device is processing a job but no trays match Recommended action 1 2 Load paper in the correct orientation Touch the OK button to use existing tray settings Load Tray 1 PLAIN SIZE Cleaning mode OK to start Description Cleaning mode paper prompt Recommended action Load a clean sheet of paper in the correct orientation then touch the OK button to begin the cleaning procedures Load tray X Press OK for available media 90 Description The tray is empty Recommended action Load paper into the tray to continue printing Press the OK button to select a different tray Chapter2 Solve problems ENWW No dial ton
125. l types of feed rollers ENWW Figure 1 20 Pickup and feed system er roller Registration roller CX pickup roller Cassette separation roller Number Description Number Description SRI Paper feeder pre registration sensor M1 Drum motor SR4 Registration sensor M3 Registration motor SR7 Multipurpose tray pre registration sensor M4 Fuser motor SR8 Fuser delivery sensor M5 Pickup motor Pickup and feed system 23 24 Number Description Number Description SR10 Loop sensor SL1 Multipurpose tray pickup solenoid SR12 Pre registration sensor SL2 Cassette pickup solenoid SR13 Cassette media presence sensor SL5 Duplex reverse solenoid SR14 Multipurpose tray media presence sensor Cl Multipurpose tray feed clutch SR15 Output bin media full sensor cl2 Duplex feed clutch Chapter 1 Theory of operation ENWW Jam detection The product uses the following sensors to detect the presence of media and to check whether media is being fed correctly or has jammed Registration sensor Multipurpose tray pre registration sensor Fuser delivery sensor Loop sensor Pre registration sensor Cassette media presence sensor Multipurpose tray media presence sensor Output bin media full sensor Paper feeder pre registration sensor The product detects the following jams Pickup delay jam Pickup stationar
126. lems 119 X r d s J X ntl HP UPD PCL 5 e Recommended for general office printing in Windows environments Compatible with previous PCL versions and older HP LaserJet products e The best choice for printing from third party or custom software programs e The best choice when operating with mixed environments which require the product to be set to PCL 5 UNIX Linux mainframe e Designed for use in corporate Windows environments to provide a single driver for use with multiple product models Preferred when printing to multiple product models from a mobile Windows computer HP UPD PCL 6 e Recommended for printing in all Windows environments e Provides the overall best speed print quality and printer feature support for most users Developed to align with Windows Graphic Device Interface GDI for best speed in Windows environments e Might not be fully compatible with third party and custom software programs that are based on PCL 5 General print quality issues The following examples depict letter size paper that has passed through the product short edge first These examples illustrate problems that would affect all of the pages that you print The topics that follow list the typical cause and solution for each of these examples Table 2 21 General print quality issues
127. ler is deformed or has deteriorated The ITB cleaning mechanism is malfunctioning Vertical white lines appear in a particular color 5 E 5 The laser beam window is dirty Clean the window and remove any foreign substances Scratches are present on the circumference of the developing cylinder or photosensitive drum White scratch down the page could mean the scanner glass needs to be cleaned Remove the affected toner cartridge and re install it The PGCs will clean the glass If the problem persists replace the affected toner cartridge The laser scanner unit mirror is dirty Replace the laser scanner assembly Vertical white lines appear in all colors Horizontal scratches on the fuser roller Replace the fuser Scratches are present on the circumference of the ITB White scratch down the page could mean the scanner glass needs to be cleaned Remove the affected toner cartridge and re install it The PGCs will clean the glass Replace the ITB Horizontal lines appear on the page Repetitive horizontal lines appear Use the repetitive defects ruler to identify the dirty roller Clean the roller If the roller cannot be cleaned replace the fuser Horizontal scratches are present on the photosensitive drum Replace the toner cartridge of the color that matches the defect Horizontal scratches are present on the fuser roller Replace t
128. leshooting Engine diagnostics Engine test button The engine test produces a single sided sheet with horizontal lines when you perform the engine test To perform the test use a small pointed object for example a straightened paper clip to push the engine test button accessed through a small hole in the rear cover If the engine is functioning properly the product will initialize and then print the test page Figure 2 2 Eng ine test button access AN WANN WAL Drum rotational check The photosensitive drum located in the toner cartridge must rotate for the print process to work The photosensitive drum receives its drive from the main drive assembly SX NOTE This test is especially important if refilled toner cartridges have been used 1 ENWW Open the toner cartridge door Remove the toner cartridge Mark the drive gear on the cartridge with a felt tipped marker Note the position of the mark Replace the toner cartridge and close the toner cartridge door The startup sequence should rotate the drum enough to move the mark Open the toner cartridge door and inspect the gear that was marked in step 3 Verify that the mark moved Tools for troubleshooting 47 If the mark did not move inspect the main drive assembly to make sure that it is meshing with the toner cartridge gears If the drive gears appear functional and the drum does not move replace the toner cartridge Half self test functional
129. letes all entries in the phone book Print Report Prints a list of all the individual dial entries in the phone book Change Defaults Fax Setup Utility Opens the Fax Setup menu Copy Menu ENWW To open this menu touch the Copy button on the Home screen and then touch the Settings button In the following table items that have an asterisk indicate the factory default setting Table 2 17 Copy Menu Menu item Number of Copies Sub menu item Description Specifies the number of copies Reduce Enlarge Original 100 Legal to letter 77 Legal to A4 82 A4 to Letter 92 Letter to A4 97 Full Page 91 Fit to Page 2 Pages per Sheet 4 Pages per Sheet Custom 25 to 400 Specifies the size of the copy Lighter Darker Optimize Auto select Specifies the contrast of the copy Specifies the type of content in the original document so the Mixed Text Picture copy is the best match for the original Tools for troubleshooting 77 Table 2 17 Copy Menu continued Menu item Sub menu item Description Paper Letter Specifies the paper size Legal NOTE The default paper size setting is determined by the choice of location during the initial product setup A4 Multi Page Copy Off When this feature is enabled the product prompts you to load another page onto the scanner glass or to indicate that the job is On complete Tray Select Tray 1 Specifies which tray to use for c
130. llowing tips can reduce interference in a wireless network e Keep the wireless devices away from large metal objects such as filing cabinets and other electromagnetic devices such as microwaves and cordless telephones These objects can disrupt radio signals e Keep the wireless devices away from large masonry structures and other building structures These objects can absorb radio waves and lower signal strength e Position the wireless router in a central location in line of sight with the wireless products on the network 138 Chapter 2 Solve problems ENWW Solve fax problems This section will discuss the following e The product does not pick up paper e The product picks up multiple sheets of paper e The document feeder jams skews or picks up multiple sheets of paper e Prevent paper jams from the paper trays Checklist for solving fax problems Several possible fixes are available After each recommended action retry faxing to see if the problem is resolved e For best results during fax problem solving make sure the line from the product is connected directly to the wall phone port Disconnect all other devices that are connected to the product 1 Verify that the telephone cord is connected to the correct port on the back of the product 2 Check the phone line by using the fax test a From the Home screen on the product control panel touch the Setup button and then touch the Service menu b Select the S
131. lve problems with your product Individual component diagnostics Tools for troubleshooting LED diagnostics Network LEDs The onboard network solution has two network port LEDs When the product is connected to a properly working network through a network cable the yellow LED indicates network activity and the green LED indicates the link status A blinking yellow LED indicates network traffic If the green LED is off a link has failed For link failures check all of the network cable connections In addition you can try to manually configure the network card link speed setting by using the product control panel Troubleshooting tools Change the Link Speed setting 1 From the Home screen on the product control panel touch the Setup Bx button 2 Scrollto and then touch the Network Setup menu 3 Scroll to and then touch Link Speed item 4 Touch the appropriate link speed Control panel LEDs The state of the Ready light and Attention light on the product signal the product status The following table outlines the possible control panel light states Product state Ready light state Attention light state Initializing Blinking Blinking Ready On Off Receiving data processing job or Blinking Off cancelling job Error message Off Blinking Fatal error 49 or 79 error On On 1 The product will power off and then power on after one of these errors occurs 46 Chapter2 Solve problems ENWW Tools for troub
132. m 2 24 in Pressure roller 63 mm 2 48 in Photosensitive drum 75 mm 2 95 in 64 Chapter2 Solve problems ENWW Tools for troubleshooting Control panel menus Setup menu To open this menu touch the Setup EN button The following sub menus are available e HP Web Services o Reports e Self Diagnostics e Fax Setup e System Setup e Service e Network Setup e Quick Forms HP Web Services menu E NOTE This menu is also available by touching the Web Services G button on the Home screen Table 2 8 HP Web Services menu Menu item Enable Web Services Description If no wired or wireless network connection is available or if Web Services is disabled use Enable Web Services to set up Web Services on the product NOTE You must be connected to a network to enable HP Web Services Display E mail Address If Web Services is enabled this option displays the product ePrint email address Print Information Sheet If Web Services is enabled this option prints the HP ePrint mobile printing report Use this report to setup ePrint in ePrint Center Turn ePrint On Off Turn Apps On Off If Web Services is enabled use this option to turn the ePrint function on or off If Web Services is enabled use this option to turn apps on or off Remove Web Services If Web Services is enabled use this option to disable Web Services and remove the ePrint address Proxy Settings The Proxy Setting
133. machine or other device 2 Fax line in port for attaching fax line to product 3 Network port 4 Hi Speed USB 2 0 port ENWW Tools for troubleshooting 49 50 Diagrams Location of major components Major components Figure 2 3 Major components Table 2 2 Major components Item Description 1 Duplex feed assembly 2 Rear door rib assembly 3 Power supply assembly 4 Duplex reverse drive assembly 5 ITB assembly 6 Delivery assembly 7 Registration assembly 8 Fuser assembly 9 Secondary transfer feed assembly 10 Cassette pickup assembly 11 Duplex re pickup guide assembly 12 Multipurpose tray pickup assembly Chapter2 Solve problems ENWW Table 2 2 Major components continued Item Description 13 Drive assembly 14 Color misregistration and density sensor ENWW Tools for troubleshooting 51 Motors and fans Figure 2 4 Motors and fans Table 2 3 Solenoid sensors and motors Item Description 1 Fuser motor 2 Drum motor M1 3 Developing motor M2 4 Fan 1 5 Fan 2 6 Pickup motor 52 Chapter 2 Solve problems ENWW Rollers Figure 2 5 Rollers A i a Table 2 4 Rollers Item Description 1 Cassette pickup roller 2 Multipurpose tray pickup roller 3 Multipurpose tray separation pad 4 Cassette separation roller ENWW Tools for troubleshooting 53 PCAs Figure 2 6 PCAs Table 2 5 PCAs
134. mber of paper jams try these solutions 1 2 ENWW Use only paper that meets HP specifications for this product Use paper that is not wrinkled folded or damaged If necessary use paper from a different package Use paper that has not previously been printed or copied on Make sure the tray is not overfilled If it is remove the entire stack of paper from the tray straighten the stack and then return some of the paper to the tray Make sure the paper guides in the tray are adjusted correctly for the size of paper Adjust the guides so they are touching the paper stack without bending it Clearjams 95 6 Make sure that the tray is fully inserted in the product 7 Ifyou are printing on heavy embossed or perforated paper use the manual feed feature and feed sheets one at a time 8 From the Home screen on the product control panel scroll to and touch the Trays button Verify that the tray is configured correctly for the paper type and size 9 Make sure the printing environment is within recommended specifications 96 Chapter 2 Solve problems ENWW Clear jams in the document feeder 1 Open the document feeder cover 2 Gently pull the jammed paper out ENWW Clearjams 97 3 Close the document feeder cover 4 Openthe scanner lid If paper is jammed in the scanner lid gently pull it out Clear jams in Tray 1 1 Pull the jammed sheet from tray 1 NOTE Ifthe sheet tears make sure that all of t
135. min There are no provisions for configuring LDAP using the product control panel Telnet or PMS SNMP Access control for LaserJet Pro devices The concepts of Authentication versus Authorization are linked yet distinct You can t have one without the other e Authentication is the act of determining who is standing at the control panel e Authorization is the act of enforcing what that person is allowed to do The HP LaserJet Pro LDAP solution brings both and together the set provides Access Control to the device The HP LaserJet Pro LDAP feature provides both and yet is a subset of what the HP LaserJet Enterprise devices offer The HP LaserJet Pro solution can allow up to 8 functions to be restricted from public access Each restricted function will allow a user to sign in with either their network user name and password or sign in with the single 4 to 8 digit access code assigned to the device ENWW Validate LDAP gateway 157 Product resets Restore the factory set defaults Restoring the factory set defaults returns most of the settings to the factory defaults It will not reset the page count or tray size but it might reset the language To restore the product to the factory default settings follow these steps 1 Touchscreen control panels Touch the Setup Setup Ay button to open the Setup menu 2 Openthe Service menu 3 Select the Restore defaults item and then press the OK button The product automatically resta
136. mory chip If it is broken or damaged replace the cartridge 3 Ifthe error persists turn the printer off and remove all the toner cartridgess Turn the printer on then reinstall the cartridges in the correct slots 4 Ifthe error persists swap the specific cartridge that the error refers to with a different color cartridge to determine whether if the error is caused by the cartridge or the cartridge slot For example insert the yellow cartridge in the magenta slot e Ifadifferent 10 100X message appears replace the cartridge that the original message referred to e fthesame message appears replace the product ENWW Tools for troubleshooting 79 30 XXXX Scanner Error Description The flatbed or ADF scanner is failing to initialize for the following reasons e 30 0013 Scanner failed to find home e 30 0016 Scan sensor communication error e 30 0017 Scan motor exceeded max position error e 30 0023 ADF scanner calibration error Recommended action 1 Verify that the product has the most recent firmware from hp com 2 Runthe S calibration especially for 30 0023 errors Follow the calibration instructions in this document HP LaserJet Pro MFP M425 M476 M521 and M570 Control panel error The product is unable to calibrate and or vertical streaks on back side of duplex scan or copy c03799079 in English available in Service Access Workbench SAW or Channel Service Network CSN 3 Verify that the
137. n the wireless networks list ENWW Solve connectivity problems 135 The wireless network is not functioning Perform a wireless network diagnostic test Reduce interference on a wireless network Wireless connectivity checklist Verify that the network cable is not connected Verify that the product and the wireless router are turned on and have power Also make sure that the wireless radio in the product is turned on Verify that the service set identifier SSID is correct Print a configuration page to determine the SSID If you are not sure the SSID is correct run the wireless setup again With secured networks verify that the security information is correct If the security information is incorrect run the wireless setup again If the wireless network is working correctly try accessing other computers on the wireless network If the network has Internet access try connecting to the Internet over a wireless connection Verify that the encryption method AES or TKIP is the same for the product as it is for the wireless access point on networks using WPA WPA security Verify that the product is within the range of the wireless network For most networks the product must be within 30 m 100 ft of the wireless access point wireless router Verify that obstacles do not block the wireless signal Remove any large metal objects between the access point and the product Make sure poles walls or support columns con
138. nd control panel settings and the printer driver settings override the control panel settings The correct size paper for the tray is not selected in the product control panel From the control panel select the correct size paper for the tray The paper size is not configured correctly for the tray Print a configuration page or use the control panel to determine the paper size for which the tray is configured The guides in the tray are not against the paper Product pulls from incorrect tray Product pulls from incorrect tray Cause You are using a driver for a different product Verify that the paper guides are touching the paper Solution Use a driver for this product The specified tray is empty Load paper in the specified tray The paper size is not configured correctly for the input tray Print a configuration page or use the control panel to determine the paper size for which the tray is configured The guides in the tray are not against the paper Paper does not feed automatically ENWW Paper does not feed automatically Cause Manual feed is selected in the software program Verify that the guides are touching the paper Solution Load Tray 1 with paper or if the paper is loaded press the OK button The correct size paper is not loaded Load the correct size paper The input tray is empty Paper from a previous jam has not been completely removed
139. nd the computer has a third party firewall installed 137 The wireless connection does not work after moving the wireless router or product etd eie dee disi 137 Cannot connect more computers to the wireless product sess 137 The wireless product loses communication when connected to a VPN 137 The network does not appear in the wireless networks list 137 The wireless network is not functioning eese esee eene nns 137 Perform a wireless network diagnostic test eese ennt 138 Reduce interference on a wireless network oooooconocicnnccoconononccanononnnnncncnncnnnnnnnocnonannnos 138 Solv fax problems A ute iaa e etus 139 Checklist for solving fax problems csssccsssssecsscssecsscsssesscessesscessesssessessecseeseessseseesseeseeseneseess 139 Perform a fax diagnostic test esee eet ise riot east apenas un dde Nee een vas ee Rete pue 140 Solve general fax problems e eet terii e i iden daten ee desee eie 140 Faxes are sending slowly cscsssssssessessesssessecsseseecssessscessesseessessesseeseesseeeeesssseeeaess 140 Fax quality is DIA e OES 141 Fax cuts off or prints on two pages erernnrrnnnrennvnrnnrnnnnrrnnrrnnnennnnrnnnnnnnrennnssnnrnnnnesnnssenne 142 Solve problems receiving faxes csccssecsccsscssscsscssscsscesscescessecssessecesessecesesseceessees
140. nd use a dry lint free cloth moistened with water to clean the pickup roller 3 Usea dry lint free cloth to wipe the rollers and remove loose dirt Clean the paper path During the printing process paper toner and dust particles can accumulate inside the product Over time this buildup can cause print quality problems such as toner specks or smearing This product has a cleaning mode that can correct and prevent these types of problems 1 Fromthe Home screen on the product control panel touch the Setup Bx button 2 Touchthe Service menu 3 Touchthe Cleaning Page button 4 Load plain letter or A4 paper when you are prompted 5 Touchthe OK button to begin the cleaning process Wait until the process is complete Discard the page that prints Clean the scanner glass strip and platen Over time specks of debris might collect on the scanner glass and white plastic backing which can affect performance Use the following procedure to clean the scanner glass and white plastic backing 1 Use the power switch to turn off the product and then unplug the power cable from the electrical socket 2 Openthe scanner lid 128 Chapter 2 Solve problems ENWW 3 Cleanthe scanner glass and the white plastic backing with a soft cloth or sponge that has been moistened with nonabrasive glass cleaner A CAUTION Do not use abrasives acetone benzene ammonia ethyl alcohol or carbon tetrachloride on any part of the pro
141. necessary remove any visible paper from bottom side of the duplexing unit ENWW Clearjams 103 4 Ifyou can not see any jammed paper lift the duplexing unit using the tab on the side of the duplexing unit 5 Ifyou can see the trailing edge of the paper remove the paper from the product 6 If you can see the leading edge of the paper remove it from the product 7 Close the rear door 104 Chapter 2 Solve problems ENWW Clear jams in the output bin 1 If paper is visible in the output bin grasp the leading edge with both hands and slowly remove it 2 Open the rear door to check for jammed paper 3 Remove any jammed paper Use both hands to pull out the paper to avoid tearing 4 Closetherear door ENWW Clearjams 105 Paper feeds incorrectly or becomes jammed The product does not pick up paper If the product does not pick up paper from the tray try these solutions 1 2 Open the product and remove any jammed sheets of paper Load the tray with the correct size of paper for your job Make sure the paper size and type are set correctly on the product control panel Make sure the paper guides in the tray are adjusted correctly for the size of paper Adjust the guides to the appropriate indentation in the tray Check the product control panel to see if the product is waiting for you to acknowledge a prompt to feed the paper manually Load paper and continue The pickup r
142. nel Service Network CSN If the error persists replace the scanner ADF Assembly HP Part tt CF387 60106 If the error persists after part replacement escalate the customer to Level 3 so that Technical Marketing has visibility to the problem Unexpected size in tray Load size Press OK Description The product has detected paper in the tray that does not match the configuration for the tray Recommended action Load the correct paper into the tray or configure the tray for the size that you have loaded Tools for troubleshooting Event log messages The following table contains all the event log codes for this product Many event log codes correspond to a control panel error message Print the event log 1 2 Make sure the product is in the Ready state Touch the Setup y button Simultaneously touch the Left Arrow button and the Cancel X button Touch the Setup N button Open the Secondary Service menu Open the Service Reports menu Touch the Error Report item Event log messages The following table contains all event log codes for this product Many event log codes correspond to a control panel error message Some product events do not produce a message that displays on the control panel Instead they are only recorded in the event log Table 2 18 Event log messages Event code Description 13 0000 Paper jam 41 3000 Unexpected size 92 Chapter2 Solve problems ENWW ENWW
143. ngages the required developing roller with the photosensitive drum according to the print mode full color mode or monochrome mode The necessary developing roller is engaged with the photosensitive drum only when required preventing a deterioration of the drums and making maximum use of the life The engagement disengagement of the developing roller is controlled by the DC controller rotating the main motor and changing the direction of the developing disengagement cam The DC controller controls the developing roller state whether engaged or disengaged by counting the main motor rotation after it detects the signal from the developing home position sensor All four color developing rollers disengage from the photosensitive drums when the product is turned on and when a print operation is completed The color developing rollers engage with the photosensitive drums when the full color mode is designated Only the black developing roller engages with the photosensitive drum when the monochrome mode is designated The DC controller determines an abnormality of the developing roller engagement disengagement function and notifies the formatter when it does not sense the signal from the developing home position sensor for a specified period during the developing roller engagement disengagement operation 22 Chapter1 Theory of operation ENWW Pickup and feed system The pickup and feed system picks up and feeds the print media It consists of severa
144. nnennnnsnnnsnnne 133 Solve connectivity problems ccceessessesssessessecssessecssessessecssesssesseesscsseesscessessessecsecssecsesaseseeseesersonesseesseeseas 134 Solve USB connection problems esee esses essen eene enn nennen tns ensis snas nn inten nn nnns 134 Solve wired network problems snnronnvonnnrnnnnrrnvnrnnvrnnnnrnnvennnrennnsnnnrnnnnennnennnrennnnsnnrnnnneennssnnnsnnnnennsnee 134 Poor physical connection eese sees eee eene eene nnn tn nene tn nennt tens tn innen 134 The computer is using the incorrect IP address for the product 134 The computer is unable to communicate with the product esse 135 The product is using incorrect link and duplex settings for the network 135 New software programs might be causing compatibility problems 135 The computer or workstation might be set up incorrectly ooocoocoonocnnoononnnonnnon 135 ENWW ENWW The product is disabled or other network settings are incorrect 135 Solve wireless network problems eee eese eese eene seen nn sitne stans na ron senes ne 135 Wireless connectivity checklist esee essere nennen nnns 136 The product does not print after the wireless configuration completes 136 The product does not print a
145. nnensnnnennnnrnnnnrnnns 60 Diagrams Driver PCA diagram eee esses eene tnnt tnter tens nn 61 Diagrams Duplexer PCA diagram rsnnronnvornnvennnennnrennnrnnnnrnnvnnnnrennnnsnnrnnnnennnssnnnennnsssnnsnns 62 Diagrams FSR diagram c ccssssssscessecessecsssecseecsseecsscesseessecessecestecsseecseeesesecseeeeneesanes 63 Print quality troubleshooting tools cscssccsscssscsscesscescessesscessecssessecssesseceeseessesseeseeeseesesessees 64 Print quality troubleshooting tools Repetitive defects ruler 64 Tools for troubleshooting Control panel menus eese esses eene eene 65 SO CUP MON Pc 65 HP Web Services Menu rere ere Eta o dues EaR e aAa 65 Reports MENU cui da a 66 Sell Diagnostics MANU id Gece sven degere dece qua idas 66 Fax Setup rmenu ue eee ee n ei E EN 67 System Setup menu ccsscecsseecessscecsssccecsseecessececssaecessceecessssessneesessseesens 69 Erde 72 Network Setup menu eenrornnronnvnrnnvennnrennnrnnnrnnnnennvennnrennnnsnnvnnnnesnnssnnnennnnennssee 74 Quick Forms menu serere teeth Un ratore inn SE Shae canes serena dui 75 Fax MOM E 75 Copy Men EE o nn Heu 77 Tools for troubleshooting Interpret control panel messages csscesscescesscesessesesessesesseesses 78 Control panel messag
146. nt image formation stage During the steps that comprise this stage a latent image is formed by applying a negative charge to the photosensitive drum You cannot see this image on the drum Step 1 primary charging A high voltage DC bias is applied to the primary charging roller which is made of conductive rubber and is in contact with the drum surface As the roller moves across the drum it applies the negative charge to that surface Figure 1 11 Primary charging Primary charging roller DC bias ENWW Image formation system 17 Step 2 laser beam exposure The laser beam scans the photosensitive drum to neutralize the negative charge on portions of the drum surface An electrostatic latent image is formed where the negative charge was neutralized Figure 1 12 Laser beam exposure Laser beam Unexposed area Exposed area Developing stage The developing cylinder comes in contact with the photosensitive drum and deposits toner on the electrostatic latent image Step 3 development Toner acquires a negative charge as a result of the friction from the developing cylinder rotating against the developing blade When the negatively charged toner comes in contact with the drum it adheres to the electrostatic latent image When the toner is on the drum the image becomes visible Figure 1 13 Development Developing blade Developing cylinder DC negative bias Photosensitive drum 18 Chapter
147. ntal limits Input trays sthe amount of paper in the tray within specifications e sthe paper correctly placed in the tray o Are the paper guides aligned with the stack Toner cartridge e sthetoner cartridge installed correctly NOTE Check for an empty refilled or cloned toner cartridge Transfer roller and fuser o Arethe transfer roller and fuser installed correctly NOTE Check for fuser film damage or a contaminated or dirty transfer roller Toner cartridge door e sthetoner cartridge door closed NOTE Check for a damaged door interlock switch or cabling Condensation e Does condensation occur following a temperature change particularly in winter following cold storage If so wipe affected parts dry or leave the product on for 10 to 20 minutes eo Wasa toner cartridge opened soon after being moved from a cold to a warm room If so allow the toner cartridge to sit at room temperature for 1 to 2 hours Miscellaneous e Check for and remove any non HP components for example a toner cartridge from the product e Remove the product from the network and make sure that the failure is with the product before beginning troubleshooting 44 Chapter2 Solve problems ENWW Power subsystem Power on checks Turn on the power If the control panel does not illuminate perform the power on checks to find the cause of the problem 1 Verify that the product is plugged into an active electrical outle
148. ntrol during the initial rotation period e A Abnormal low temperature conditions o The main thermistor temperature remains at 100 C 212 F or lower for a specified period under the heater temperature control during the print period e Abnormal high temperature conditions o The main thermistor temperature remains at 235 C 487 F or higher for a specified period o The temperature of either one of the sub thermistors remains at 273 C 523 F or higher for a specified period e Fuser heater drive circuit failure o The specified count of the zero crossing signal is not detected within a specified period after the product is turned on o The frequency is out of the specified range 40 to 70 Hz Engine control system 13 High voltage power supply The DC controller controls the high voltage power supply to generate high voltage biases The high voltage power supply generates the high voltage biases that are applied to the primary charging roller developing roller primary transfer pad secondary transfer roller and ITB cleaning unit Figure 1 7 High voltage power supply Primary charging Developing bias bias circuit circuit Blade bias circuit ra SIS S 3 paa a rf rf 4 a a a OQ 0 n0 0 oOo m a a Cartridge BE Vv Vy Pat AV Photosensitive drum
149. o receive faxes The settings are as follows e All Rings The product answers any calls that come through the telephone line e Single The product answers any calls that produce a single ring pattern e Double The product answers any calls that produce a double ring pattern e Triple The product answers any calls that produce a triple ring pattern e Double and Triple The product answers any calls that produce a double ring or triple ring pattern Set up the distinctive ring function 1 From the Home screen touch the Setup amp y button 2 Touchthe Fax Setup menu 3 Touchthe Basic Setup menu 4 Touchthe Distinctive Ring and then touch the name of an option Fax by using Voice over IP services Voice over IP VoIP services provide normal telephone service including long distance service through a broadband Internet connection These services use packets to break up the voice signal on a telephone line and transmit it digitally to the receiver where the packets are reassembled The VoIP services are often not compatible with fax machines The VoIP provider must state the service supports fax over IP services Because the installation process varies the VoIP service provider will have to assist in installing the product fax component Although a fax might work on a VoIP network it can fail when the following events occur o Internet traffic becomes heavy and packets are lost e Latency the time it takes for a packet
150. ol circuit maintains the temperature of the fuser heater at its targeted temperature The DC controller monitors the fuser temperature MAINTH SUBTH and SUB2TH signals and sends the fuser heater control FSRD signal according to the detected temperature The fuser heater control circuit controls the fuser heater depending on the signal so that the heater remains at the targeted temperature Figure 1 6 Fuser control circuit Fuser unit FU2901 RL2901 Fuser sleeve heater Pressure roller FU1 Thermal fuse TH801 Main thermistor TH802 Sub thermistor 1 TH803 Sub thermistor 2 H120 H220 LY power supply Zero crossing circuit MAINTH Fuser heater safety circuit gt SUB2TH ENWW SUBTH Engine control system 11 Fuser protective function 12 The protective function detects an abnormal temperature rise of the fuser and interrupts power supply to the fuser heater The following protective components prevent an abnormal temperature rise of the fuser heater o DC controller The DC controller monitors the detected temperature of the thermistors It deactivates the fuser heater control signal and releases the relay to interrupt the power supply to the fuser heater under the following conditions o Main thermi
151. ol language ACL is a language that supports product control and firmware downloads in printers that support both PJL PCL and host based printing Each sequence of ACL commands must be preceded by a unified exit command UEL and an PJL ENTER LANGUAGE ACL command The ACL sequence is always followed by a UEL Any number of commands can be placed between the UELs The only exception to these rules is the download command If a firmware download is done the download command must be the last command in the sequence It will not be followed by a UEL The firmware searches for the UEL sequence when parsing commands However while downloading binary data such as host based code or NVRAM data the firmware suspends UEL parsing To handle hosts that disappear during binary sequences the firmware times out all ACL command sessions If a timeout occurs during a non download command sequence it is treated as the receipt of a UEL If a timeout occurs during firmware download the product resets PML The printer management language PML allows remote configuration and status monitoring through the 1 0 ports Control panel The formatter sends and receives product status and command data to and from a touch screen control panel NFC Wireless bundles only This product supports near field communication NFC capabilities NFC enables an easy one to one HP wireless direct print connection using a simple device to device touch Mobile device users can quickl
152. oller and separation pad might be contaminated The product picks up multiple sheets of paper If the product picks up multiple sheets of paper from the tray try these solutions 1 Remove the stack of paper from the tray and flex it rotate it 180 degrees and flip it over Do not fan the paper Return the stack of paper to the tray Use only paper that meets HP specifications for this product Use paper that is not wrinkled folded or damaged If necessary use paper from a different package Make sure the tray is not overfilled If it is remove the entire stack of paper from the tray straighten the stack and then return some of the paper to the tray Make sure the paper guides in the tray are adjusted correctly for the size of paper Adjust the guides to the appropriate indentation in the tray Make sure the printing environment is within recommended specifications If the multi feed occurred when pulling paper from Tray 1 you can try loading the paper into Tray 2 The paper feed angle is reduced when printing from Tray 2 106 Chapter 2 Solve problems ENWW Solve image quality problems Solve image quality problems Image defects table The following examples depict letter size paper that has passed through the product short edge first These examples illustrate problems that would affect all the pages that you print whether you print in color or in black only Table 2 20 Image defects table Problem Print is li
153. olor for example if magenta dots appear in all five color bands If the dots are all the same color replace that toner cartridge e Ifstreaks appear in multiple color bands contact HP A component other than the toner cartridge is probably causing the problem Clean the product Print a cleaning page During the printing process paper toner and dust particles can accumulate inside the product and can cause print quality issues such as toner specks or spatter smears streaks lines or repeating marks Use the following procedure to print a cleaning page 1 From the Home screen on the product control panel touch the Setup x button 2 Touchthe Service menu 3 Touchthe Cleaning Page button 4 Load plain letter or A4 paper when you are prompted 5 Touch the OK button to begin the cleaning process The product prints the first side and then prompts you to remove the page from the output bin and reload it in Tray 1 keeping the same orientation Wait until the process is complete Discard the page that prints Check the scanner glass for dirt and smudges Over time specks of debris might collect on the scanner glass and white plastic backing which can affect performance Use the following procedure to clean the scanner ENWW Solve image quality problems 115 4 5 Press the power button to turn the product off and then disconnect the power cable from the electrical outlet Open the scanner lid Clean the scann
154. omputer Enable the firewall when you have completed the wireless installation The wireless connection does not work after moving the wireless router or product 1 Make sure that the router or product connects to the same network that your computer connects to 2 Printa configuration page 3 Compare the service set identifier SSID on the configuration page to the SSID in the product configuration for the computer 4 Ifthe numbers are not the same the devices are not connecting to the same network Reconfigure the wireless setup for the product Cannot connect more computers to the wireless product 1 Make sure that the other computers are within the wireless range and that no obstacles block the signal For most networks the wireless range is within 30 m 100 ft of the wireless access point 2 Makesure that the product is turned on and in the ready state 3 Turn off any third party firewalls on your computer 4 Make sure that the wireless network is working correctly 5 Make sure that your computer is working correctly If necessary restart the computer The wireless product loses communication when connected to a VPN Typically you cannot connect to a VPN and other networks at the same time The network does not appear in the wireless networks list e Make sure the wireless router is turned on and has power e The network might be hidden However you can still connect to a hidden network The wireless network is n
155. on phone number to make the product answer the incoming call e TAM Atelephone answering machine TAM is attached to the Auxiliary phone port of the product The product will not pick up any incoming call but will listen for fax tones after the answering machine has picked up the call e Fax Tel The product must automatically pick up the call and determine if the call is a voice or fax call If the call is a fax call the product handles the call as usual If the call is a voice call an audible synthesized ring is generated to alert the user of an incoming voice call Rings to Answer Sets the number of rings that must occur before the fax modem answers The default setting is 5 Distinctive Ring All Rings If you have distinctive ring phone service use this item to configure how the product responds to Single incoming calls Double e All Rings The product answers any calls that come through the telephone line Triple Double and Triple Single The product answers any calls that produce a single ring pattern e Double The product answers any calls that produce a double ring pattern e X Triple The product answers any calls that produce a triple ring pattern e Double and Triple The product answers any calls that produce a double ring or triple ring pattern ENWW Tools for troubleshooting 67 Table 2 11 Fax Setup menu continued Menu item Sub menu item Sub menu item Descri
156. ones In general incoming faxes to the product are automatically received However if other devices are connected to the same phone line the product might not be set to answer automatically If the product is connected to a phone line that receives both fax and phone calls and you hear fax tones when you answer the extension phone receive the fax in one of two ways e fyouare near the product press Start Fax on the control panel e Press 1 2 3 in sequence on the extension phone keypad listen for fax transmission sounds and then hang up E NOTE In order for the second method to work the Extension Phone setting must be set to Yes ENWW Fax functions and operation 33 Distinctive ring function Ring pattern or distinctive ring service is available through some local telephone companies The service allows you to have more than one telephone number on a single line Each telephone number has a unique ring pattern so that you can answer voice calls and the product can answer fax calls If you subscribe to a ring pattern service with a telephone company you must set the product to answer the correct ring pattern Not all countries regions support unique ring patterns Contact the telephone company to determine if this service is available in your country region E NOTE If you do not have ring pattern service and you change the ring pattern settings to something other than the default All Rings the product might not be able t
157. onnect a telephone to the phone jack on the wall and try making a voice call Connect the product phone cord to a jack for another phone line Solve fax problems 149 e Tryadifferent phone cord o Make sure that the phone cord from the wall telephone jack is connected to the line 4c port e Check the phone line by using the Run Fax Test option from the Service menu on the control panel a From the Home screen on the product control panel touch the Setup button b Open the Service menu c Open the Fax Service menu d Select the Run Fax Test item e Ifthe error persists contact HP See www hp com support colorljMFPM476 or the support flyer that came in the product box Document feeder paper jam e X Verify that the paper meets product size requirements The product does not support pages longer than 381 mm 15 in for faxing e Copy or print the original to letter A4 or legal size paper and then resend the fax The Fax storage is full message appears e Turnthe product off then on e Printstored faxes that have not been printed a Touch the Fax button and then touch the Fax Menu button b Open the Receive Options menu Select the Print Private Faxes item d Provide the password when the product prompts you e Delete stored faxes from memory a From the Home screen on the product control panel touch the Setup x button b Open the Service menu c Open the Fax Service menu d Select t
158. operation ENWW Item Description Item Description 6 Primary transfer pad Pressure roller 7 Intermediate transfer belt ITB Table 1 1 Sequence of operation Period Duration Purpose Remarks WAIT From the time the power is Clears the potential from the Detects the toner level turned on or the door is closed drum surface adjusts the drum cartridge presence and until the drum phase phase and cleans the ETB environment completes any adjustment is complete required calibration color registration control and image stability STBY Standby period From end of the WAIT or LSTR Maintains the product in The product enters sleep mode period until either the print command is received from the formatter or the power is turned off readiness for a print command when the formatter sends a sleep command and performs color registration and the image stability control when the formatter sends those commands INTR Initial rotation From the time the print command is received until the media is picked up Prepares the photosensitive drum for printing PRINT From the end of INTR period Forms the images on the Performs image stabilization at until the fuser paper sensor photosensitive drum and a specified print interval or at detects the trailing edge of transfers the toner image to specified times paper the print media LSTR Last rotation From the end of the PRINT Moves the printed sheet out of The product enters the
159. opies Tray 2 Tray 3 Two Sided 1to1 Specifies the duplex setting for copies 1to2 NOTE This item is available for duplex models only 2to2 2to1 Draft Mode Off Specifies whether to use draft quality printing for copies On Image Adjustment Lightness Adjusts the image quality settings for copies Contrast Sharpen Background Removal Color balance Sharpness Grayness Collation On Off Specifies whether to collate copy jobs Set as New Defaults Saves any changes you have made to this menu as the new defaults Restore Defaults Restores the factory defaults for this menu Control panel message types Tools for troubleshooting Interpret control panel messages e Alert and warning messages appear temporarily and might require you to acknowledge the message by pressing the OK button to resume or by pressing the CANCEL X button to cancel the job With certain warnings the job might not complete or the print quality might be affected If the alert or warning Chapter2 Solve problems ENWW message is related to printing and the auto continue feature is on the product will attempt to resume the printing job after the warning has appeared for 10 seconds without acknowledgement e Critical error messages can indicate some kind of failure Turning off and then turning on the power might fix the problem If a critical error persists the product might require service The control panel messages indicate t
160. or messages fax error report fax printing 155 error correction setting fax 155 event log 46 142 147 F factory defaults restoring NVRAM initialization 158 faded print 107 120 fans location 52 fax billing metering tone filters 37 card 35 datapath 35 distinctive ring 34 166 Index downstream current detection 36 error report printing 155 error correction 155 flash memory storage 37 functions 33 hookstate 36 hook switch control 36 line current control 36 operations 33 pagestorage 37 PSTN operations 33 pulse dialing 36 receiving 33 reports printing all 154 ring detect 36 safety isolation 35 safety protection circuitry 35 solve general problems 140 subsystem 35 unable to receive 142 unable to send 147 V 34 setting 155 voice over IP VoIP services 34 fax card CODEC 35 DSP 35 faxsubsystem 35 hook switch control 36 pulse dialing 36 regional versions 35 ring detect 36 Fax menu control panel 75 fax ports locating 49 fax security security features computer 33 security features network 33 Fax Setup menu control panel 67 fax subsystem faxcard 35 operations 35 fax troubleshooting checklist 139 flash memory fax 37 fonts lists printing 66 formatter connections locating 49 fuser assembly diagrams 50 fuser control 10 fusing stage 20 G glass cleaning 115 128 gray background troubleshooting 121 H half self test check 48 high voltage power supply 14 hook state fax 36 hook switc
161. ory 2 Ifthe issue persists clear faxes from memory a Open the Service menu b Touch the Fax Service button c Touch the Clear Saved Faxes menu item Front door open Description The toner cartridge door is open Recommended action 1 2 Close the toner cartridge door If the issue persists open the toner cartridge door and locate the door open switch in the upper right hand corner of the opening Manually activate the switch a Ifthe Front door open message disappears check for a broken flag on the corresponding part of the front door assembly If the flag is broken replace the front door assembly HP Part RM2 5301 000CN b If manually activating the switch does not clear the message replace the product The door switch is not an orderable part Jam in Tray 1 Clear jam and then press OK Description The product has detected a jam in Tray 1 Recommended action 1 Clear the jam from the area indicated on the product control panel and then follow the control panel instructions 2 Make sure the paper guides in the tray are adjusted correctly for the size of paper 3 Ifthe jam persist replace the Tray 1 pick up roller HP Part RL1 1802 000CN Jam in Tray 2 Clear jam and then press OK ENWW Description The product has detected a jam in Tray 2 Recommended action 1 Clear the jam from the area indicated on the product control panel and then follow the control panel instructions 2 Ma
162. os e Photo Adobe RGB 1998 Use this theme with printing digital photos that use the AdobeRGB color space rather than sRGB Turn off color management in the software program when using this theme e None No color theme is used e Custom Profile Select this option to use a custom input profile to accurately control color output for example to emulate a specific HP Color LaserJet product Download custom profiles from www hp com 6 Clickthe OK button to close the Document Properties dialog box In the Print dialog box click the OK button to print the job Change the color options 1 2 From the software program select the Print option Select the product and then click the Properties or Preferences button 118 Chapter2 Solve problems ENWW 3 Clickthe Color tab 4 Selectthe HP EasyColor check box to clear it 5 Clickthe Automatic or Manual setting e Automatic setting Select this setting for most color print jobs e Manualsetting Select this setting to adjust the color settings independently from other settings Click the Settings button to open the manual color adjusment window NOTE Changing color settings manually can impact output HP recommends that only color graphics experts change these settings 6 Click the Print in Grayscale option to print a color document in black and shades of gray Use this option to print color documents for photocopying or faxing Also use this option to print draft copies o
163. ot functioning 1 Make sure that the network cable is not connected 2 Toverify if the network has lost communication try connecting other devices to the network 3 Test network communication by pinging the network ENWW Solve connectivity problems 137 a Open a command line prompt on your computer For Windows click Start click Run type cmd and then press Enter b Type ping followed by the router IP address For Mac OS X open the Network Utility and then supply the IP address in the correct field in the Ping pane c If the window displays round trip times the network is working 4 Make sure that the router or product connects to the same network that the computer connects to a Printa configuration page b Compare the service set identifier SSID on the configuration report to the SSID in the product configuration for the computer c If the numbers are not the same the devices are not connecting to the same network Reconfigure the wireless setup for the product Perform a wireless network diagnostic test From the product control panel you can run a diagnostic test that provides information about the wireless network settings 1 From the Home screen on the product control panel touch the Setup amp button 2 Open the Self Diagnostics menu 3 Touch the Run Wireless Test button to start the test The product prints a test page that shows test results Reduce interference on a wireless network The fo
164. ower by using the power switch and then wait at least 30 seconds b Turn on the power and wait for the product to initialize 2 Ifyou are using a surge protector a Power off the printer b Remove the surge protector c Plug the product directly into the wall socket and turn the product power on 3 Check the voltage label on the back of the product If the product is rated 220V and is plugged into a 110V outlet this error might occur In most cases no damage is caused to the product If a power transformer is used to convert 220V power to 110V verify that the transformer power rating is sufficient to operate the product 4 Ifthe error persists replace the Low Voltage Power Supply e Low voltage power supply PC board assembly Input voltage 110VAC 127VAC HP Part tt RM2 8030 000CN e Low voltage power supply PC board assembly Input voltage 220VAC 240VAC HP Part tt RM2 8032 000CN 59 XXXX Error Turn off then on Description The product has experienced an internal motor error e 59 3XXX Feed motor start error e 59 4XXX Feed motor rotation error e 59 8000 Drum motor start error e 59 9000 Developer motor start error Recommended action 1 Reset the printer a Turn off the power by using the power switch and then wait at least 30 seconds b Turn on the power and wait for the product to initialize 2 Ifyou are using a surge protector a Poweroffthe printer b Remove the surge protector c Plu
165. perations 33 pulse dialing 36 Q quality troubleshooting repetitive image defects 64 quick forms printing 75 Quick Forms menu control panel 75 R receiving faxes 33 distinctive ring 34 error report printing 155 Index 167 regional versions faxcard 35 repetitive defects troubleshooting 64 124 reports color usage log 66 configuration report 43 66 default info page 66 DemoPage 66 diagnostics page 66 error 92 fax 66 menu structure 66 network summary 66 PCL font list 66 PCL6 font list 66 print quality page 66 PS font list 66 service page 66 supplies status 66 usage page 66 Reports menu control panel 66 reports fax error 155 printing all 154 resets NVRAM initialization 158 restoring factory defaults 158 restoring default settings NVRAM initialization 158 ring detect fax card 36 RING operations 33 rollers image formation operations 17 locating 53 rotation check drum 47 S safety protection circuitry fax 35 isolation fax 35 scanner glass cleaning 115 128 scanner operation 28 scatter troubleshooting 124 168 Index security features computer 33 network 33 Self Diagnostics menu control panel 66 sending faxes error report printing 155 sensors jam detection 25 separation rollers locating 53 separation stage image formation 20 sequence of operations 3 Service menu control panel 72 service page 66 settings networkreport 66 Setup menu accessing 65 skewed pages 123 trou
166. ption Dial prefix On Specifies a prefix number that must be dialed when sending faxes from the product Off Advanced setup Fax Resolution Standard Sets the resolution for sent documents Higher resolution images have more dots per inch dpi so Fine they show more detail Lower resolution images have fewer dots per inch and show less detail but Superfine the file size is smaller and the fax takes less time to transmit Photo Lighter Darker Sets the darkness for outgoing faxes Fit to Page On Shrinks incoming faxes that are larger than the paper size set for the tray Off Glass Size Letter Sets the default paper size for documents being scanned from the flatbed scanner A4 NOTE The default setting is determined by the choice of location during the initial product setup Dialing Mode Tone Sets whether the product should use tone or pulse dialing Pulse Redial if Busy On Sets whether the product should attempt to redial if the line is busy Off Redial if No Answer On Sets whether the product should attempt to redial if the recipient fax number does not answer Off Redial if Comm Error On Sets whether the product should attempt to redial the recipient fax number if a communication error Off occurs Detect Dial Tone On Sets whether the product should check for a dial tone before sending a fax Off Extension Phone On When this feature is enabled the 1 2 3 buttons on the extension phone may be pressed to cause the Off product to
167. r Mac OS X software to set it up e Make sure the Scan to Email feature is enabled If it has been disabled enable the feature through the HP Device Toolbox Windows or HP Utility for Mac OS X software e Make sure the product is connected to a computer or to a network Cannot connect to the email server e Make sure the SMTP server name is correct Check this setting with your system administrator or Internet Service Provider 9 If the product cannot establish a secure connection to the SMTP server try without the secure connection or try a different server or port Check this setting with your system administrator or Internet Service Provider If the SMTP server requires authentication make sure a valid user name and password are used e fthe SMTP server uses an authentication method that is not supported try a different server Check this setting with your system administrator or Internet Service Provider The email failed e Verify that email addresses entered are correct e Ifthe size of the email was too large send fewer pages or reduce the scan resolution Unable to scan o If you are prompted for a PIN enter the correct PIN for the outgoing profile o Make sure at least one email address is selected in the To field 156 Chapter 2 Solve problems ENWW Validate LDAP gateway The LDAP implementation enables an administrator to configure and setup the LDAP feature using the product s Embedded Web Server or Web JetAd
168. r to save color toner 7 Clickthe OK button to close the Document Properties dialog box In the Print dialog box click the OK button to print the job Try a different print driver You might need to use a different print driver when printing from a software program and the printed pages have unexpected lines in graphics missing text missing graphics incorrect formatting or substituted fonts Download any of the following drivers from the HP Web site In the US go to www hp com support colorlj MFPM476 Outside the US go to www hp com support Select your country region Click Download Drivers amp Software Enter the product name and then select Search H Ml HP PCL 6 driver e Provided as the default driver on the product CD This driver is automatically installed unless you select a different one e Recommended for all Windows environments e Provides the overall best speed print quality and product feature support for most users Developed to align with the Windows Graphic Device Interface GDI for the best speed in Windows environments Might not be fully compatible with third party and custom software programs that are based on PCL 5 HP UPD PS driver e Recommended for printing with Adobe software programs or with other highly graphics intensive software programs Provides support for printing from postscript emulation needs or for postscript flash font support ENWW Solve image quality prob
169. rectly The CODEC is activated when it receives commands from the DSP When the circuit is drawing DC current from the central office it is considered off hook When no DC current flows the state is considered on hook Ring detect Ring detect is performed by the line voltage monitoring module of the silicon DAA and is a combination of voltage levels and cadence time on and time off Both must be present to detect a valid ring The CODEC works with DSP as well as the firmware to determine if an incoming signal is an answerable ring Line current control The DC current from the CO needs to have a path to flow from TIP to RING The DC impedance emulation line modulator and DC terminations modules in the silicon DAA act as a DC holding circuit and works with the firmware to achieve the voltage current characteristic between TIP and RING The impedance the current voltage characteristic changes corresponding to certain special events such as pulse dialing or when the product goes on hook 36 Chapter1 Theory of operation ENWW Billing metering tone filters Switzerland and Germany provide high frequency AC signals on the phone line in order to bill customers A filter in a special fax cable for certain countries regions can filter these signals Because these billing signals are not used in the U S these filters are not present in the U S fax cable To obtain a special fax cable contact your local telephone service provider F
170. rt The control panel is touched A document is loaded in the document feeder or the scanner lid is opened A tray is opened The engine test button is pressed 29 TIP Error messages override the Sleep Delay message The product enters Sleep mode at the appropriate time but the error message continues to appear Input output The following sections discuss the input and output features of the product USB The product includes a universal serial bus USB 2 0 connection 10 100 networking The product includes a 10 100 network connection Fax The product includes a fax phone line connection Chapter 1 Theory of operation ENWW USB hosts The product includes USB hosts for USB flash drive and wireless communication control Memory If the product encounters a problem when managing available memory a clearable warning message appears on the control panel Flash memory NOR Stores microprocessor control programs and internal character sets fonts NAND Stores fax memory and driver installation software Random access memory All models come with 192 MB of memory installed The formatter has 256MB NAND Flash Nonvolatile memory The product uses nonvolatile memory NVRAM to store 1 0 and information about the print environment configuration The contents of NVRAM are retained when the product is turned off or disconnected Memory Enhancement technology The HP Memory Enhancement technology MEt e
171. rts NVRAM initialization A CAUTION AILHP Jetdirect settings are also reset Be sure to print a configuration page before performing an NVRAM initialization Make note of the IP address that is listed on the Jetdirect configuration page You need to restore the IP address after performing an NVRAM initialization An NVRAM initialization erases all data stored in the unprotected NVRAM sections Performing an NVRAM initialization resets the following settings and information e A All menu settings are reset to factory default values e Alllocalization settings including language and country region are reset After performing an NVRAM initialization reconfigure any computers that print to this product so that the computers can recognize the product 1 Turnthe product off 2 Pressand hold the lower right quadrant of the touchscreen Keep the quadrant depressed as you turn the product on 3 When the Permanent Storage Init message appears on the display release the buttons 4 Whenthe product has finished the NVRAM initialization it returns to the Ready state Super NVRAM initialization Asuper NVRAM initialization restores the product to the generic product mode in which it arrived from the factory This means that you will have to reset the language and country region settings when the product starts after the initialization A super NVRAM initialization erases all data stored in the protected and unprotected NVRAM se
172. rts the supplies status page lists the genuine HP part numbers Check to see if you are using a genuine HP cartridge A genuine HP toner cartridge has the words HP or Hewlett Packard on it or has the HP logo on it For more information on identifying HP cartridges go to www hp com go learnaboutsupplies Hewlett Packard cannot recommend the use of non HP supplies either new or remanufactured Because they are not HP products HP cannot influence their design or control their quality If you are using a refilled or remanufactured toner cartridge and are not satisfied with the print quality replace the toner cartridge with a genuine HP toner cartridge Print and interpret the print quality page 1 2 3 From the Home screen touch the Setup button Touch the Reports button Touch the Print Quality Page button This page contains five bands of color which are divided into four groups as indicated in the following illustration By examining each group you can isolate the problem to a particular toner cartridge 114 Chapter2 Solve problems ENWW O e O Section Toner cartridge 1 Yellow 2 Cyan 3 Black 4 Magenta e If dots or streaks appear in only one of the groups replace the toner cartridge that correlates with that group e If dots appear in more than one group print a cleaning page If this does not solve the problem determine if the dots are always the same c
173. s sub menu includes the following o Proxy Server e Proxy Port e User Name e Password ENWW Tools for troubleshooting 65 Reports menu Table 2 9 Reports menu Menu item Demo Page Description Prints a page that demonstrates print quality Fax Reports Prints various fax reports Report options include the following o Fax Activity Report e Phone Book Menu Structure Configuration Report Prints a map of the control panel menu layout The active settings for each menu are listed Prints a list of all the product settings Includes basic network information when the product is connected to a network Supplies Status Prints the status for each toner cartridge including the following information Estimated percentage of cartridge life remaining o Approximate pages remaining e Part numbers for HP toner cartridges e Number of pages printed Network Summary Prints a list of all product network settings Usage Page Prints a page that lists PCL pages PCL 6 pages PS pages pages that were jammed or mispicked in the product monochrome black and white or color pages and reports the page count PCL Font List Prints a list of all the PCL fonts that are installed PS Font List Prints a list of all the PostScript PS fonts that are installed PCL6 Font List Prints a list of all the PCL6 fonts that are installed Color Usage Log Prints a report that shows the user name application
174. se eene nnne nn cnn senes th nenne sensa 46 Tools for troubleshooting LED diagnostics ccsssssscssssesesesesseessesssesseeeseesseeseees 46 ship 46 Control panel LEDs elei eee eseee sees eren Sai KERER NEALE 46 Tools for troubleshooting Engine diagnostics esee 47 Engine test button sreonrnnronvonnvrnnvnnvrnnvrnvrnnvrnnvnnnrnnrnnvnnnrnnnnnnennnsnnnnnsnnnsnnsnn 47 Drum rotational check cessisse ies ses ainiai 47 Half self test functional check eee sese 48 DIDI EE da 49 Diagrams Formatter connections eese se eeeseee esee eene enne non c setas tnn sinn conos 49 Diagrams Location of major components cccssessecsesssesecseeseesseesseeseeeseesseeseeessees 50 Major component S A A 50 Motors and fans irte tet iaasa ai dd 52 ablltcf E a 53 ENWW viii Optional 250 sheet cassette eese eene 55 Diagrams General timing chart sonrrnnnnrnnvonnnrennnennnrnnnnrsnvnrnnrennnnrnnvennnrennssnnnrsnnnesnnesnner 56 Diagrams CircuiE Ha Grit iacet doter eid octave deuten ida ees dedi cae erae Teese Os oo OUO 57 Diagrams CPU ASIC diagrams sccccssssscscsesssscsesesesessesescsssecscseseseessseseseneeseseneaeenees 58 Diagrams HVT Toner EMP diagram orononrnronrnnrnvnnrnrnnrnvnnrnnnnrnvenennenenne
175. single sheet 9 Feed The single sheet continues through the ADF paper path aided by the pre scan rollers until the leading edge of the page activates the top of form sensor Activation of this sensor initiates the scan process and the scanner acquires the image as the document moves over the ADF glass The post scan rollers then eject the sheet into the output area The pick and feed steps are repeated as long as paper is detected by the paper present sensor e Home When the form sensor detects the trailing edge of the last page the last sheet is ejected and the motor turns on a sequence that rests the separation floor back down in standby mode which allows it to detect when more media is loaded Note that the ADF will not function when the ADF door is open ADF duplex operation The ADF on this product is equipped with a duplex image scanner to facilitate fast and efficient duplex copies and scans When a duplex copy scan is initiated the duplex image scanner acquires the image from the back side of the document while the flatbed image scanner simultaneously acquires the image from the front side of the document ADF paper path and ADF sensors The paper present sensor determines if paper is in the ADF The form sensor detects the top and bottom edges of the document One other sensor detects an open ADF door 30 Chapter1 Theory of operation ENWW The following diagram shows the ADF paper path Figure 1 22 ADF paper path
176. snnrennssennsee 157 Access control for LaserJet Pro devices sranrnnvnnrnnvnnnennnnrnnrnnnnvennnnnvnnenrnnnrnnsnesnennnsnesnensrsnessensennenee 157 DID Ia ELT CETTE TIED iii 158 Restore the factory set defaults eee eese seeeee eene enn een sensn sns nns nnt nn sns 158 DOVLEDIEIDZ DIE E 158 Super NVRAM initialization eres eeeseee eese ee rennen rennen nnne asaina th nRa annA aaa 158 Firmware upgrades cscessscssessesessseseessseseccsscssecssesscessessecssessecssessecseeseesaecseesseessesaeesseesssessesseseecsesssesnessess 159 Appendix A Product specifications eeeceeeveevvvevevennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenenennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnnnneeee 161 Product dimensions oiii ton tete aene eieiei Rae He ERN NNUS EVE TYE RARE RN Ge det dar THREE DEN RENE EAR RES 162 Power consumption electrical specifications and acoustic emissions cc csscesscessesscescesscesseseeeneeseeeees 162 xii ENWW Environmental specifiCatiOns iier eoe Pee es Sarees ev REN Yun ese aaa as 162 Certificate OF Volatilidad 163 ENWW xiii xiv ENWW List of tables Table 1 1 Table 2 1 Table 2 2 Table 2 3 Table 2 4 Table 2 5 Table 2 6 Table 2 7 Table 2 8 Table 2 9 Table 2 10 Table 2 11 Table 2 12 Table 2 13 Table 2 14 Table 2 15 Table 2 16 Table 2 17 Table 2 18 Table 2 19 Table 2 20 Table 2 21 Table 2 22 Table A 1 Table A 2 ENWW Sequence SP
177. snnrsens 147 No dial tone sie dad 147 Cannot send or receive a fax on a PBX line eese eene tenes 147 Solve problems sending FAXES sesscsssssscssessesssessessecssessscssesscssesssessesssessessecseessecaseseesesseesaess 147 xi An error message displays on the control panel esses 148 The Communication Error message appears essere 148 hit ML 149 The Fax is busy message appears scssccesessecsecssecssceseesscesseesseseeesseees 149 The No fax answer message appears sese eene 149 Document feeder paper jam esee nente nennt tnn nns 150 The Fax storage is full message appears esses 150 sehr Mee BE R Aa EAE EARR ER 150 The control panel displays a Ready message with no attempt to send the fax 150 The control panel displays the message Storing page 1 and does not progress beyond that message sccsscssscsscsssesscessessceseesecensecsecseecaesseesaessaesaeceseeeeessesseessesseses 151 Faxes can be received but not sent esernornronornovnnnvrnnnvnnrnnnrnnenrnnennnenennennesnennensnenener 151 Product is password protected esee eene enn nnne non nn nnn nnne nes 151 Unable to use fax functions from the control panel sees 152 Unable to use speed dials
178. snsnenenesssnenensnrsnensnenessnsnenenses 164 ENWW 1 Theory of operation This chapter presents an overview of the major components of the product and includes a detailed discussion of the image formation system e Basic operation e Formatter control system e Enginecontrol system e Laser scanner system e Image formation system e Pickup and feed system e Scanning and image capture system e ADF operation e Faxfunctions and operation e USB flash drive ENWW Basic operation Major systems The product includes the following systems o Engine control system e Laser scanner system e mage formation system e Pickup and feed system e Document feeder system Product components Figure 1 1 Product components OG a e QO 00 0 Item Description Item Description 1 Fuser unit 8 Pickup roller 2 Delivery roller 9 Separation roller 3 Print cartridge 10 Registration roller 4 Laser scanner unit 11 Secondary transfer roller 5 Photosensitive drum 12 Fusing film 2 Chapter 1 Theory of operation ENWW Sequence of
179. sor A Walk up USB 8 Chapter 1 Theory of operation ENWW Power supply The low voltage power supply and the fuser power supply convert AC power from the power receptacle into DC power to cover the DC loads Figure 1 4 Low voltage power supply AC input Fuse FU2901 e o_o e E Noise filter a eam Fuser control gt circuit z I I I I I i ZEROX I I I ji I jl I 3 3V generation 3 3V E circuit i DC controller Power switch control circuit Power switch SW3001 PSREM24V 24V generation circuit I I I I I i 24V I I I I I I Protective function The power supply unit has a protective function against overcurrent and overvoltage to prevent failures in the power supply circuit If an overcurrent or overvoltage instance occurs the system automatically cuts off the output voltage If the DC voltage is not being supplied from the power supply unit the protective function might be running If that is the case turn off the power switch and unplug the power cord Do not plug in the power cord and do not turn the power switch on again until the root cause is found In addition a fuse protects against overcurrent instances If an overcurrent instance flows into the AC line the fuse deactivates and cuts off the power distribution ENWW En
180. ss OK ssennnrnvrrnvrnvvrnvrnnrrnvrnnrnnvennvnnnn 89 Jam in Tray 2 Clear jam and then press OK esses 89 Jam in Tray 3 Clear jam and then press OK cccsssssscescesscessessesseeseeeees 90 LOA DA iii andina 90 Load Tray 1 TYPE lt SIZE gt Press OK to use available media 90 Load Tray 1 PLAIN SIZE Cleaning mode OK to start 90 Load tray X Press OK for available media esses 90 LIE 91 No fax detected i ee RU pe e IRA diia 91 The product is unable to calibrate Close the lid and remove paper from the document feeder ennnnnrnrovronnrnnnvonnvnnnvnennrnnvnnennnnnennrnneneennrnesvrsnee 91 Unexpected size in tray Load size Press OK 92 Tools for troubleshooting Event log messages sees esee eee entente tenente tnnnnns 92 Print theeventlog ii e e eee ed ena edis 92 Eventlog messages ER ER INESSE IRR 92 ne 95 Jam loCatioris ii eee oet eee deett tee pte ded ve e tee eie enna ees 95 Experiencing frequent or recurring paper jams ernnvornnvonnvernnrrnnnrenvnrnnvrnnnnennvernnrnnnnesnnrsnnnrennssnnenee 95 Clear jams in the document feeder ronrrnvrnnrnnvonnvonvnnnvrnvvrnvrnnrrnnrnnnennrnnnrnnnnnnnnnnnnnsnnnnnnsnnnsnnsnnnsnnsnnnsnn 97 Cle rjamsin Tr
181. ssecssessecesesseceseseesoesseesaeeseesseessees 27 Copy or scan sequence of events eiiis eese nennen tenente sinet sane nasse tnn non coca nin senes 28 Scarinier operatlOn reset deett a din ee Vicus ee 28 ADF Operation ier tette Moki oe aie eate et ides rta i ie e Ei ee ter Sed 30 ADF duplex Operation CREER T 30 ADF paper path and ADF sensors nesnnvrrnorennvesnnrsnnnrnnvnrnnrennnnennvssnnrennnennnrsnnnennnnssnnesnnnennnssnnsennnennnssens 30 ADF jam detectiOn ss he A A Abe 31 ADF jam clearance eios aera casera oci a ce OO 32 Fax functions and operation A aei dene tib esie ane dee SENE ERE 33 Computer and network security features cscessecsssecsscesccecsececsecesscesseceseecsseeceeesseecssceeseessees 33 PSTN operation iii ada 33 Receive faxes when you hear fax tones ccsccsssssessssssesssessessecssessscssesescssseessessesscessecsecstesseseeses 33 Distinctive ring function oonoonnroonnronnnrrnvrnnnnennvnrnnvennnernnrsnnnrennnsnnvsnnnnennnssnnrnnnnennnssnnnesnnnsnnsnnnnnsnnnennnr 34 vi ENWW Fax by using Voice over IP services sscssecscessessecsessecsscescsssesseesseseeeecesseceseaseceecaeecaesseesaessaesness 34 MIME FAX s bsystem ii EOE A S EE E 35 Fax card in the fax subsystem sccsscessesssessessestecsesseseeseescesseessecaseseesseeseeessessesssensecsesaeesseeses 35 Safety Isolation e ic a AA E ERAR 35 Safety protection circuitry
182. stor 253 C 487 4 F or higher o Sub thermistor 1 273 C 523 4 F or higher Sub thermistor 2 273 C 523 4 F or higher e Fuser heater safety circuit The fuser heater safety circuit monitors the detected temperature of the thermistors It releases the relay to interrupt the power supply to the fuser heater under the following conditions o Main thermistor 320 C 608 F or higher o Sub thermistor 1 295 C 563 F or higher Sub thermistor 2 295 C 563 F or higher e Thermal fuse The thermal fuse blows to interrupt power supply to the fuser heater if the thermal fuse temperature reaches 228 C 442 F or higher Chapter 1 Theory of operation ENWW Fuser failure detection ENWW The DC controller determines a fuser unit failure deactivates the fuser heater control signal releases the relay to interrupt power supply to the fuser heater and then notifies the formatter of a failure state when it encounters the following conditions e Start up failure conditions o The main thermistor temperature does not reach 50 C 122 F within a specified period of heater startup during the wait period o The main thermistor temperature does not reach the targeted temperature within a specified period after the temperature once reaches 50 C 122 F from the heater startup during the wait period o The main thermistor temperature does not reach the targeted temperature within a specified period under the heater temperature co
183. strophic loss of data or extensive damage to the product ENWW iv Conventions used in this guide ENWW Table of conte nts AR OCCUPE 1 A DIDE IE EILC E DILDO 2 AS ere E eese reete eere ate o ce erre narret erre rona aee S Sic DERE re one un A aoa AA ssbassbeceasasdentstdeaaslinade lees 2 Product components eese sese eene isson kare tenth snnt tassa seta seas ren irad are Era AREAS ERTEK 2 Sequence of operation sccescssscescessesscessesssessecesessecsesseessesseesecssesaecssesssesseseecseecseeaseeeseeseesenesaess 3 Formatter control System inicia a m 4 Sleep Deli 4 Inip t OUtDUL 4 cereos ict ice efc tactil 4 USB O U 4 10 100 networking 5 3 2 sates oin orae e o bore dida 4 c 4 TEN go OE EE easa araia ease eaS 5 MIMI ONY E id a dad RA 5 AA 5 Random access memory esee esee esses enne testen enn stesse tne tnst tee tns these ne tht teens 5 Nonvolatile memory ccsccsccesseessessesssessecsecssecsesseesaesssesseesecsseeseceseeassesseessessesssensesseeaes 5 Memory Enhancement technology eese eese eene eene enne tenen nn snn se nrne 5 IIl nr1cie EE 5 PJEOVErvIEN c 5 Pd c
184. t are running on the OS Type SRAM DRAM etc Size User Modifiable Function Steps to clear memory LI Yes L No Type SRAM DRAM etc Size LAV Modifiable Function Steps to clear memory Yes No Non Volatile Memory Does the device contain non volatile memory Memory whose contents are retained when power is removed X Yes No If Yes please describe the type size function and steps to clear the memory below Type Flash EEPROM etc Size User Modifiable Function Steps to clear memory EEPROM 128kb Yes KX No Device configuration page n a statistics Type Flash EEPROM etc Size User Modifiable Function Steps to clear memory Flash 2Gb Yes X No Device FW fax file system n a Type Flash EEPROM etc Size User Modifiable Function Steps to clear memory None Yes x No Mass Storage Does the device contain mass storage memory Hard Disk Drive Tape Backup LI Yes KX No If Yes please describe the type size function and steps to clear the memory below Type HDD Tape etc Size User Modifiable LI Yes L No Function Steps to clear memory Certificate of Volatility 163 Figure A 2 Certificate of Volatility 2 of 2 Type HDD Tape etc Size User Modifiable Function Steps to clear memory L Yes No USB
185. t becomes low impedance at approximately 300 V differential and crowbars to a low voltage A series thermal switch works in conjunction with the crowbar for continuous telephone line events such as crossed power lines All communications cross the isolation barrier magnetically The breakdown voltage rating of barrier critical components is greater than 5 kV Data path TIP and RING are the two wire paths for all signals from the telephone network All signaling and data information comes across them including fax tones and fax data ENWW Fax functions and operation 35 The telephone network uses DC current to determine the hook state of the telephone so line current must be present during a call The silicon DAA provides a DC holding circuit to keep the line current constant during a fax call The silicon DAA converts the analog signal to a digital signal for DSP processing and also converts the digital signal to an analog signal for transmitting data through a telephone line The magnetically coupled signals that cross the isolation barrier go either through a transformer or a relay The DSP in the fax card communicates with the ASIC in the formatter using the high speed serial interface Hook state Another magnetically coupled signal is the control signal that disconnects the downstream telephone devices such as a phone or answering machine A control signal originating on the DSP can change the relay state causing the auxiliary
186. t that delivers the correct voltage 2 Verify that the power switch is in the on position 3 Makesure that the product makes the expected start up sounds 5 NOTE The over current over voltage protection circuit in the low voltage power supply unit might be functioning Turn the product off unplug the power cord and turn the product on If the product does not function the fuse melts or the power supply is malfunctioning replace the engine controller unit Control panel checks Use the product control panel to conduct tests on the control panel LEDs display or buttons E NOTE When the menus are accessed some of the touchscreen buttons located along the sides of the control panel display are not illuminated Use the figure below to locate the Cancel gt lt button and the left arrow button to access the control panel tests Figure 2 1 Control panel 2ndary Service test access buttons 1 From the Home screen on the product control panel touch the Setup XX button 2 Fromthe Setup Menu screen simultaneously touch the non illuminated left arrow button and the Cancel X lt This will activate the 2ndary Service Menu 3 After touching both buttons the Home screen appears Touch the Setup Menu icon to access the 2ndary Service Menu bar 4 Fromthe Service Menu touch the 2ndary Service menu bar ENWW Troubleshooting process 45 Tools for troubleshooting The section describes the tools that can help you so
187. tain blank pages Check the document that you are printing to see if content appears on all of the pages The product might be malfunctioning To check the product print a Configuration page Pages print very slowly NOTE The product print speed is effected by various factors for example media size or page complexity Heavier media types can slow the print job Print on a different type of media Complex pages can print slowly Proper fusing might require a slower print speed to ensure the best print quality Paper type not set correctly Select the type to match the paper Pages did not print The product might not be pulling media correctly Ensure paper is loaded in the tray correctly If the problem persists you might need to replace the pickup rollers and the separation pad The media is jamming in the product Clear the jam The USB cable might be defective or incorrectly connected e Disconnect the USB cable at both ends and reconnect it e Try printing a job that has printed in the past e Try using a different USB cable Other devices are running on your computer The product might not share a USB port If you have an external hard drive or network switchbox that is connected to the same port as the product the other device might be interfering To connect and use the product you must disconnect the other device or you must use two USB ports on th
188. taining metal or concrete do not separate the product and wireless access point Verify that the product is located away from electronic devices that might interfere with the wireless signal Many devices can interfere with the wireless signal including motors cordless phones security system cameras other wireless networks and some Bluetooth devices Verify that the print driver is installed on the computer Verify that you have selected the correct printer port Verify that the computer and product connect to the same wireless network For Mac OS X verify that the wireless router supports Bonjour The product does not print after the wireless configuration completes 1 2 Make sure that the product is turned on and in the ready state Turn off any third party firewalls on your computer Make sure that the wireless network is working correctly Make sure that your computer is working correctly If necessary restart the computer Verify that you can open the product HP Embedded Web Server from a computer on the network 136 Chapter 2 Solve problems ENWW The product does not print and the computer has a third party firewall installed 1 Update the firewall with the most recent update available from the manufacturer 2 fprogramsrequest firewall access when you install the product or try to print make sure you allow the programs to run 3 Temporarily turn off the firewall and then install the wireless product on the c
189. te the factory default setting Table 2 16 Fax Menu Menu item Sub menu item Sub menu item Description Fax Reports Fax Confirmation On Every Fax Sets whether the product prints a confirmation report after a successful fax job On Send Fax Only On Receive Fax Only Never ENWW Tools for troubleshooting 75 76 Table 2 16 Fax Menu continued Menu item Sub menu item Include First Page Sub menu item On Off Description Sets whether the product includes a thumbnail image of the first page of the fax on the report Fax Error Report On Every Error On Send Error On Receive Error Sets whether the product prints a report after a failed fax job Never Print Last Call Report On Prints a detailed report of the last fax operation either sent or received Off Fax Activity Log Print Log Now Auto Log Print Print Log Now Prints a list of the faxes that have been sent from or received by this product Auto Log Print Automatically prints a report after every fax job Print Phone Book Prints a list of the speed dials that have been set up for this product Print Junk Fax List Prints a list of phone numbers that are blocked from sending faxes to this product Print All Fax Reports Prints all fax related reports Send Options Send Fax Later Broadcast Fax Send Fax time Send Fax date Allows a fax to be sent at a later time and date Sends a f
190. teriorated Replace the secondary transfer roller The primary charging roller developing roller or photosensitive drum is deformed or has deteriorated Replace the toner cartridge of the color that matches the defect The fuser roller is deformed or has deteriorated Replace the fuser The high voltage power supply T PCA is defective no transfer bias output Replace the high voltage power supply upper The toner is not fully fused to the paper The fuser roller or pressure roller is scarred or deformed Replace the fuser The thermistor is defective The fuser heater is defective Replace the fuser 110 Chapter 2 Solve problems ENWW Table 2 20 Image defects table continued Problem Some color is misregistered Cause The product is incorrectly calibrated Solution Calibrate the product The ITB unit is defective If the ITB does not rotate smoothly or a cleaning malfunction occurs ITB is dirty replace the ITB The drive gear of the ITB motor is worn or chipped The RD sensor is defective Check each drive gear between the ITB drive roller and the ITB motor If the gear is worn or chipped replace the drive unit Open and close the front door several times to clean the RD sensor If the problem persists replace the RD sensor The laser scanner unit is defective Replace the laser scanner assembly The toner cartridge is
191. that reduces curl When printing pages that will be stored for a long time this option sets the product to a mode that reduces toner smearing and dusting Firmware Date Code Displays the firmware date code Restore Defaults Sets all settings to the factory default values Signature Check Cancel if Invalid Prompt if Invalid Validates HP firmware downloads 72 Chapter2 Solve problems ENWW Table 2 13 Service menu continued Menu item Sub menu item Sub menu item Description LaserJet Update Check for Updates Checks for new firmware updates using the network wired or wireless Manage Updates Allow Downgrade Allows installing a lower firmware version than is currently installed The following options are available e Yes e No Check Automatically Enables or disables the function to periodically check for firmware updates The following options are available e On e Off Prompt Before Install When an update is ready displays a control panel message for confirmation before installing The following options are available e Install Automatically e Always Prompt Allow Updates Enables or disables firmware updates The following options are available e Yes e No ENWW Tools for troubleshooting 73 Network Setup menu In the following table items that have an asterisk indicate the factory default setting Table 2 14 Network Setup menu Menu item Wireless Menu
192. the error Chapter2 Solve problems ENWW ENWW Table 2 1 Basic problem solving continued Problem The product prints the engine test and the Demo page but does not print jobs from a computer Cause The network or USB cable is not connected correctly Solution Reconnect the cable TIP Tryusing a new USB cable that is 3 m 10 ft or less in length An incorrect driver is selected Select the correct print driver The print driver is not installed correctly Remove and then reinstall the product software Make sure that you use the correct procedure and port setting Other devices are connected to the product for example through a switch or hub that are interfering with the computer product communications Disconnect the other devices switches or hubs There is a computer port communications problem Reset the computer port settings see the computer user guide for more information The formatter is defective Replace the formatter Solve problems checklist 41 Menu structure To enable you to more easily navigate to individual settings you can print a report of the complete menu structure 1 Fromthe Home screen on the product control panel touch Service 2 Touch Reports 3 Touch Menu Structure The product prints the menu structure report 4 Toreturnto the Home screen touch the Home button 42 Chapter2 Solve problems ENWW Configuration report
193. the product to retry sending the fax Re sending temporarily reduces the fax speed Disconnect the product telephone cord from the wall connect a telephone to the phone jack on the wall and try making a call Connect the product phone cord to a jack for another phone line Try a different phone cord From the control panel change the Fax Speed option to the Medium V 17 setting or Slow V 29 setting a From the Home screen on the product control panel touch the Setup x button b Open the Fax Setup menu Open the Advanced Setup menu d Open the Fax Speed menu e Select the correct setting Turn off the Error Correction option a From the Home screen on the product control panel touch the Setup x button b Open the Service menu c Open the Fax Service menu d Open the Error Correction menu e Select the Off setting Sf NOTE Turning off the Error Correction option can reduce image quality If the error persists contact HP See www hp com support colorljMFPM476 or the support flyer that came in the product box 148 Chapter 2 Solve problems ENWW No dial tone The Fax is busy Make sure that the telephone cord is connected to the correct port on the product Make sure that the telephone cord from the product is connected directly to the wall telephone jack Check for a dial tone on the phone line by using the Start Fax button Disconnect the product telephone cord from the wall connect a telephon
194. the toner cartridges and replace if necessary e Ask the sender to darken the contrast setting on the sending fax machine and then resend the fax Fax cuts off or prints on two pages e Setthe Default Paper Size setting Faxes print on a single size of paper based on the Default Paper Size settings a Open the Setup Menu menu b Open the System Setup menu Open the Paper Setup menu d Open the Default Paper Size menu e Select the correct setting e Setthe paper type and size for the tray used for faxes e Turnonthe Fit to Page setting to print longer length faxes on letter or A4 size paper a Open the Setup Menu menu b Open the Fax Setup menu Open the Advanced Setup menu d Open the Fit to Page menu e Select the On setting Ey NOTE If the Fit to Page setting is off and the Default Paper Size setting is set to letter a legal size original prints on two pages Solve problems receiving faxes e The fax does not respond e An error message displays on the control panel e A fax is received but does not print e Senderreceives a busy signal 142 Chapter2 Solve problems ENWW No dial tone Cannot send or receive a fax on a PBX line The fax does not respond The fax has a dedicated phone line Set the Answer Mode option to the Automatic setting from the control panel From the Home screen on the product control panel touch the Setup y button Open the Fax Setup men
195. tic and configuration procedures for example resetting page counts for the product you must install the CP1210 Service Config Tool available at your HP authorized repair center e Solve problems checklist e Menu structure e Configuration report o Troubleshooting process e Tools for troubleshooting e Clear jams e Paper feeds incorrectly or becomes jammed e Solve image quality problems e Solve paper handling problems o Clean the product e Solve performance problems e Solve connectivity problems e Solve fax problems e Solve email problems e Validate LDAP gateway e Product resets e Firmware upgrades ENWW Solve problems checklist Table 2 1 Basic problem solving Problem When the product is connected to a correctly grounded power source the control panel does not illuminate and the main motor does not rotate Cause No power to the product The product has an internal power failure Solution 1 Verify that the power switch is turned on 2 Verify that the power cable is correctly connected to the outlet and the product 3 Verify that the power outlet has the correct voltage Check the internal cable connections for loose connections The formatter is defective Replace the formatter The Low Voltage Power Supply is defective Replace the Low Voltage Power Supply The High Voltage Power Supply is defective Replace the H
196. to travel from its point of origin to its point of destination becomes excessive If you experience problems using the fax feature on a VolP network ensure that all of the product cables and settings are correct Configuring the Fax Speed setting to Medium V 17 or Slow V 29 can also improve your ability to send a fax over a VoIP network If you continue to have problems faxing contact your VoIP provider 34 Chapter1 Theory of operation ENWW The fax subsystem The formatter fax card firmware and software all contribute to the fax functionality The designs of the formatter and fax card along with parameters in the firmware determine the majority of the regulatory requirements for telephony on the product The fax subsystem is designed to support V 34 fax transmission lower speeds such as V 17 fax and older fax machines Fax card in the fax subsystem Two versions of the fax card are used in the product One is used in the North American South American and Asia Pacific countries regions The other is used primarily in European countries regions The fax card contains the modem chipset DSP and CODEC that controls the basic fax functions of tone generation and detection along with channel control for fax transmissions The CODEC and its associated circuitry act as the third generation silicon data access arrangement DAA to comply with worldwide regulatory requirements The only difference between the two versions is that
197. u Open the Basic Setup menu Open the Answer Mode menu Select the Automatic setting An answering machine is connected to the product ENWW Set the Answer Mode option to the TAM setting and connect the answering machine to the telephone port a b c d From the Home screen on the product control panel touch the Setup y button Open the Fax Setup menu Open the Basic Setup menu Open the Answer Mode menu Select the TAM setting If the TAM setting is unavailable set the Answer Mode option to the Automatic setting Set the Rings to Answer setting to at least one ring more than the number of rings for which the answering machine is set a b c d From the Home screen on the product control panel touch the Setup amp button Open the Fax Setup menu Open the Basic Setup menu Open the Rings to Answer menu Select the correct setting Connect the answering machine to the telephone port If the product has a telephone handset connected set the Answer Mode option to the Fax Tel setting to route calls to the correct device When detecting a voice call the product generates a ring tone that alerts you to pick up the telephone handset b From the Home screen on the product control panel touch the Setup button Open the Fax Setup menu Solve fax problems 143 Open the Basic Setup menu d Open the Answer Mode menu e Select the Fax Tel setting The Answer Mode setting is s
198. ually from the control panel Unable to send a fax when a phone is connected to the product o Make sure that the telephone is hung up e Make sure that the telephone is not being used for a voice call when faxing e Disconnect the phone from the line and then try sending the fax ENWW Solve fax problems 153 Fax trace report A fax T 30 trace report has information that can help resolve fax transmission problems If you call HP for help in resolving these problems print a T 30 trace report before you call 1 2 3 4 From the Home screen on the product control panel touch the Setup Bx button Touch the Service menu Touch the Fax Service menu Touch the Print T 30 Trace button and then touch the Now button Ey NOTE This procedure prints a report for the last fax job successful or not To generate a report for each unsuccessful fax job select the If Error setting To generate a report for each fax job select the At End of Call setting Fax error report printing Use the following instructions to print fax logs and reports Print all fax reports Use this procedure to print all of the following reports at one time Last Call Report Fax Activity Log Phone Book Report Junk Fax List Billing Report when Billing Codes are turned on Configuration Report Usage Page From the Home screen on the product control panel touch the Fax button Touch the Fax Menu button Touch the Fax Reports button Touch
199. vice provider for information about configuring to an analog fax line e f using a VoIP service change the Fax Speed setting to Slow V 29 from the control panel Ask if your service provider supports fax and for the recommended fax modem speed Some companies might require an adapter e Ifyou are using a DSL service make sure that a filter is included on the phone line connection to the product Contact the DSL service provider or purchase a DSL filter if you do not have one If a DSL filter is installed try another filter because filters can be defective 6 Ifthe error persists find more detailed problem solving solutions in the sections that follow this one Perform a fax diagnostic test From the product control panel you can run a diagnostic test that provides information about the product fax settings 1 From the Home screen on the product control panel touch the Setup y button 2 Openthefollowing menus e Service e FaxService 3 Touch the Run Fax Test button to start the test The product prints a test page that shows test results Solve general fax problems This section will discuss the following e Faxes are sending slowly e Fax quality is poor o Fax cuts off or prints on two pages Faxes are sending slowly The product is experiencing poor phone line quality 140 Chapter 2 Solve problems ENWW e Retry sending the fax when the line conditions have improved e Check with the phone service provider that t
200. x Setup menu 144 Chapter2 Solve problems ENWW Open the Advanced Setup menu d Open the Fax Speed menu e Select the correct setting Contact your service provider to make sure that fax is supported and for a recommended fax speed settings Some companies might require an adapter An error message displays on the control panel The No Fax Detected message displays Ex NOTE This error does not always refer to a missed fax If a voice call is made to a fax number by mistake and the caller hangs up the No Fax Detected message displays on the control panel Ask the sender to resend the fax Make sure that the telephone cord from the product is connected to the wall telephone jack Try a different phone cord Connect the product phone cord to a jack for another phone line Make sure the telephone line and phone wall jack are active by connecting a telephone and checking for a dial tone Make sure that the telephone cord is connected to the line port on the product Check the phone line by running a fax test from the control panel If the error persists contact HP See www hp com support colorljMFPM476 or the support flyer that came in the product box The Communication Error message appears ENWW Ask the sender to send the fax again or send at a later time when line conditions have improved Disconnect the product telephone cord from the wall connect a telephone to the phone jack on the wall and try mak
201. y connect to the printer and print documents and images from a mobile device such as a smartphone or tablet by touching the device to the NFC icon on the bottom of the control panel Chapter 1 Theory of operation ENWW Engine control system The engine control system coordinates all product functions and drives the other three systems The engine control system contains the DC controller high voltage power supply PCA and low voltage power supply fuser power supply unit Figure 1 2 Engine control system components LASER SCANNER SYSTEM ENGINE CONTROL IMAGE FORMA TION SYSTEM SYSTEM PICKUP AND FEED SYSTEM DOCUMENT FEEDER SYSTEM ENWW Engine control system 7 DC controller The DC controller PCA controls the operation of the product and its components The DC controller PCA starts product operation when the power is turned on and the power supply sends DC voltage to the DC controller PCA After the product enters the standby sequence the DC controller PCA sends out various signals to operate motors solenoids and other components based on the print command and image data that the host computer sends Figure 1 3 DC controller circuit diagram num SS CS T DC controller Fuser unit gt v Motor LE Solenoid AC input EEE iic O Lo jj Clutch aa Switch cse 3 High voltage power supply Sensor KN j L f K Sen
202. y jam Delivery delay jam Delivery stationary jam Fuser wrapping jam Residual media jam Duplex re pickup unit jam Pad transfer ENWW The product uses a pad transfer method for the primary transfer operation The pad transfer method stabilizes an image compared to the conventional separation roller method The wider nip width between the transfer pad and the photosensitive drum improves the transfer performance Pickup and feed system 25 26 Multiple feed prevention The product uses a separation roller to prevent multiple sheets of media from entering the product The paper separation roller follows the rotational direction of the pickup roller because it does not have its own driving force e Normal feed The separation roller is driven by the pickup roller through a sheet of print media That is the separation roller rotates in the media feed direction o Multiple feed The low friction force between the sheets weakens the rotational force from the pickup roller The separation roller is limited in its rotational force and it does not rotate with such a weak driving force from the pickup roller Since the separation roller does not rotate the multiple sheets do not feed into the product The following figure illustrates the mechanism of the multiple feed prevention Figure 1 21 Multiple feed prevention Pickup roller Media Separation roller Lifting plate The separation roller does not rotate

HP LaserJet Pro Color MFP M476 Troubleshooting

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