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Service Manual

1. IN Duplexing nl NS feed roller O LG O To JSN os O ED OI i F 7 4 Chapter 7 7 5 Parts Replacement Procedure 7 5 1 Main Motor 7 5 1 1 Preparation for Removing Main Motor i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the DCNT board 5 Remove the laser scanner unit 7 5 1 2 Removing Main Motor i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the 2 screws 1 and remove the main motor 2 2 F 7 5 7 5 2 Separation Pad 7 5 2 1 Preparation for Removing Separation Pad i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 7 5 2 2 Removing Separation Pad i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the 2 screws 1 and remove the separation pad 2 F 7 6 7 5 3 Pickup Roller 7 5 3 1 Removing Pickup Roller i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Open the control panel 1 2 Open the cartridge cover 2 7 6 F 7 7 3 Unhook the 2 claws 1 toward outside and remove
2. Error Code Description 0041 Can t receive carrier within 6 sec after sending PPR 0042 Can t receive correct signal after sending RNR signal 0043 Receive incorrect signal at phase D in ECM mode 0044 Can t receive carrier FSK signal within 6 sec After sending MCF In ECM mode 0047 Can t receive correct signal or DCN received after sending ERR signal 0048 Can t receive correct signal after receive PPS PRI Q 004B Can t detect correct FSK signal even through detected FSK tone within 6 sec 004C Handshake fail during re train or between page in V34 Rx 004E Receive DCN signal after sending DIS in V 34 004F Remote side disconnected after sending ANSam in V 8 phase 0050 Can t receive any correct signal after detected CJ signal in V 8 phase 0051 Can t receive phase 3 signal after phase 2 within 20 seconds in V 34 0053 Modem disconnect after phase 4 in V 34 0054 Remote side disconnect after phase 4 in V 8 0055 Receive incorrect signal after sending DIS signal in V 34 0056 Modem disconnect after sending CFR in V 34 0058 Can t detect image signal within 6 sec after modem enter to primary phase in V 34 005A Modem cannot detect any correct ECM frame with 3 minutes in phase C 005B Modem can t detect control channel with 12 sec in phase C 005C Detect busy tone within control channel after phase C 005D Modem can t detect any correct ECM frame with 12 sec in phase C 005E Ca
3. VCC GND DES VCC DS a CND J707 123456 SCNT F 4 3 fe Original Presence Absence Detection Detected by DS Document Sensor PS106 Setting the original onto the original tray pushes up the actuator activating light shielded gt light transmitted the DS PS106 and resulting in detection ofthe presence of original 2 Detection of the End of the Original Detected by the DES Document End Sensor PS105 The leading edge of the original that is fed pushes up the actuator activating the DES PS105 light shielded gt light transmitted and resulting in detection of the reach of the leading edge of original Furthermore when the trailing edge of the original passes the actuator position the actuator returns to the original position inactivating the DES PS105 light transmitted gt light shielded The trailing edge of the original is detected by this mechanism The original length that can be scanned with this equipment is less than 400 mm Passing of the original longer than this results in jam stop The original length is calculated by the time it takes from detection of the leading edge of the original to detection of the trailing edge of the original MEMO There is no function to detect the original size original width length in this equipment 4 2 Detection Jams 4 2 1 Jam Detection i SENSYS MF4150 i SEN
4. 7 5 3 Pickup Roller 7 5 3 1 Removing Pickup Roller Chapter 8 Fixing System 8 1 Overview Configuration E aa 8 1 8 1 1 Specification Control Function List sese nennen nnnm nnn ene enemies 8 1 8 12 OVNI MC DM E E ias 8 1 8 2 Various Control Mechanisms sssssssssssssssssseseesene ener n Iren ln nnne nn nne RR nn nnn nr sensn n enne nen nnns 8 3 8 2 1 Controlling the Temperature of the Fixing Unit nennen nnnm errem 8 3 8 2 1 1 Fixing Temperature Conitoli 3 2 3 ea irte th i edle n nce be eerte tn desit pe 8 3 Protection Function etre tae eo tenu mie A MS 8 3 1 Protection Function S meer e etre eee tacon 8 4 Parts Replacement Procedure 4444444444H40nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnsnnennannnnnnnnnnnennennnsnennnnnnn 8 4 1 FixingiYnit 2 8 4 1 1 Preparation for Removing Fixing Assembly 24404244404snnnnnnsnnnonnnnnnnnnnnnennnnnnnnnnnnnennnnnnnnnnnnnnnnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 8 4 1 2 Removing Fixing Assembly ereta careraaanenanaa aaa naaenaaaanena R RRA sen en sien nnns innen seni 8 A FIXING Film Unit coi 8 4 2 1 Preparation for Removing Fixing Film Unit 8 4 2 2 Removing Fixing Film Unit 2 2240044240nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
5. BOOK SCAN L R BOOK COPY L R BOOK FAX L R Item of setting range to enable adjusting right left margins at Book reading 0 to 4mm 11 1 Chapter 11 ADF SCAN U R ADF COPY UR ADF FAX U R Item of setting range to enable adjusting right left margins at Book reading 0 to 4mm 11 1 4 Print Adjustment i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 After pressing the Additional Functions button and button select AD JUST and then press OK button Select the item to adjust with the cursor buttons TOP MP Item to enable adjusting recording start position of vertical scanning when making prints from the manual feeder tray TOP CASSETTE Item to enable adjusting recording start position of vertical scanning when making prints from the pickup tray TOP DUPLEX MP Item to enable adjusting recording start position of vertical scanning when making duplex prints from the manual feeder tray TOP DUPLEX CAS Item to enable adjusting recording start position of vertical scanning when making duplex prints from the pickup tray LEFT MP Item to enable adjusting recording start position of horizontal scanning when making prints from the manual feeder tray LEFT CASSETTE Item to enable adjusting recording start position of horizontal scanning when making prints from the pickup tray LEFT DUPLEX MP Item to enable adjusting recording start position of horizontal scanning when making duplex prints from the man
6. Transfer block Developing block 4 Flow of paper 4 Direction of drum rotation F 6 2 1 Electrostatic latent image formation block Electrostatic images are formed on the photosensitive drum Stepl Primary charging Charges negative potential evenly on the surface of the photosensitive drum Step 2 Laser beam exposure Forms electrostatic images on the photosensitive drum 2 Developing block 6 1 Chapter 6 Put the toner on the electrostatic latent image on the surface of the photosensitive drum to visualize Step 3 Development 3 Transfer block The toner image on the surface of the photosensitive drum is transferred to papers Step 4 Transfer Transfers the toner on the photosensitive drum to a paper Step 5 Separation Separates the paper from the photosensitive drum 4 Fixing block The toner image is fixed on the paper Step 6 Fixing 5 Drum cleaning block The residual toner on the photosensitive drum is removed Step 7 Drum cleaning Removes the residual toner on the photosensitive drum 6 2 Driving and Controlling the High Voltage System 6 2 1 Generation of Transfer Charging Bias i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The transfer charging bias TRS is output to transfer the toner on the photosensitive drum to papers There are transfer charging DC positive bias and transfer charging DC negative bias generated at the transfer charging bias generation circuit
7. 2 _ 9 F 4 9 4 3 2 ADF Motor 4 3 2 1 Preparation for Removing the ADF Motor i SENSYS MF4150 i SENSYS MF4140 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 5 Remove the control panel assembly 4 3 2 2 Removing the ADF Motor i SENSYS MF4150 i SENSYS MF4140 1 Open the copyboard glass cover 1 to detach it upward Pull out the hinge 2 on the left side while keeping it tilted toward the back A Place the detached copyboard glass cover on cloth etc not to damage the bot tom sheet Chapter 4 F 4 10 2 Reverse the copyboard 1 and detach the bottom cover 4 2 screws 2 5 claws 3 3 3 F 4 11 3 Free the cable 1 form the cable guide 2 2 2 F 4 12 4 Open the ADF cover 1 and unhook the 2 claws 2 2 F 4 13 5 Unhook the 2 claws 3 to remove the ADF motor cover 4 4 4 ars 3 F 4 14 6 Remove the ADF motor 3 2 screws 1 1 cable tube 2 4 3 3 Separation Pad 4 3 3 1 Removing the Separation Pad i SENSYS MF4150 i SENSYS MF4140 1 Open the ADF cover 1 F 4 16 2 Remove the separation pad 1 in the direction of the arrow F 4 17 A Points to Note when Attaching Insert the spring 1 of the separation pad into the boss 2 Chapter 4 F 4 18 Chapter 5 Laser Exposure Contents Contents EN u a it Ue
8. Stack 35 sheets 80 g m2 or less 25 sheets LGL size Mixed original sizes No Original AE detection No Original size recognition No Stamp No Operating environment pursuant to the host machine 1 1 3 3 FAX Specifications i SENSYS MF4150 i SENSYS MF4140 Applicable lines Analog line single line Telephone subscriber line PSTN Transmission method 1 8 Half duplex communication Chapter 1 1 1 4 Function List Modulation method lt G3 image signal gt ITU T V 27 ter 2 4Kbps 4 8Kbps ITU T V 29 7 2Kbps 9 6Kbps ITU T V 17 TC7 2Kbps TC9 6Kbps 12Kbps 14 4Kbps ITU T V 34 2 4Kbps 4 8Kbps 7 2Kbps 9 6Kbps 12Kbps 14 4Kbps 16 8Kbps 19 2Kbps 21 6Kbps 24Kbps 26 4Kbps 28 8Kbps 31 2Kbps 33 6Kbps lt G3 procedure signal gt ITU T V 21 No 2 300bps ITU T V 8 V 34 300bps Transmission speed 33 6Kbps 31 2Kbps 28 8Kbps 26 4Kbps 24Kbps 21 6Kbps 19 2Kbps 16 8Kbps 14 4Kbps 12Kbps TC9 6Kbps TC7 2Kbps 9 6Kbps 7 2Kbps 4 8Kbps 2 4Kbps With automatic fallback function Coding MMR MR MH Error correction ITU T ECM Minimum receive input level V 17 V 27ter V 29 6 to 43 dBm V 34 10 to 43 dBm Modem IC CONEXANT DFX336 Scanning line density Standard 8 dots mm x 3 85 lines mm Fine 8 dots mm x 7 7 lines mm Super fine 8 dots mm x 15 4 lines mm Half tone 256 gr
9. Contents Contents TT Basic Adjustments REO e pe SR os MT a eli OR eo ci E eres 11 1 11 11 Adjustment Teas eei isis scsi RR IR neh SR A leerer re ee Rv ne eed 11 1 I D2 Paper Margin AO doe ots toner pU Et UE E e ees 11 1 11 1 3 Readins AUS 82 ed aad dece e Le RE II 11 1 11 1 4 A cessessade cds sdvdencekcesecSecdw cuban tosses Ses da ue i EEEE E besie cues EEE ei E EEEE E OAE ESAS 11 2 Chapter 11 11 1 Basic Adjustments 11 1 1 Adjustment Items i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 There are no adjustment items with this machine 11 1 2 Paper Margin Adjustment i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 After pressing Additional Functions button and button to select SERV ICE MODE select SERVICE S CHOICE with the cursor button and press OK button Select the item to adjust by the cursor buttons Effective only when using COPY function 3 3 h 1 F 11 1 T 11 1 1 Leading edge erase 4mm 0 5 2 Trailing edge erase 5mm 0 5 3 Vertical edge erase 3mm 0 5 11 1 3 Reading Adjustment i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 After pressing Additional Functions button and button to select AD JUST press OK button Select the item to adjust by the cursor buttons MAIN Regist PPP IsibeH ans F 11 2 BOOK MAIN REGIST Item to enable adjusting the reading start position of horizontal scanni
10. 3 mm Oto 5 33600 bps 33600 to 2400 33600 bps 33600 to 2400 10dBm 4 to 15 DTMF HIGH FREQ LEVEL 5dBm DTMF LOW FREQ LEVEL 8dBm 10dBm 10dBm r ON OFF MMR MR MH Not used Not used Not used Not used Chapter 13 Y ADJUST CIS ADJUST SHIPPING HOME PO ADF ADF ADF ADF ADF L ADF L ADF ADF r MARGIN IMAGING AREA L PRINT POSITION TOP TOP TOP L TOP VERSION DISPLAY SCNT POS S SHEET POS r READING ADJUST BOOK MAIN REGIST r BOOK SUB REGIST MAIN REGIST SUB REGIST DES ADF SUB REGIST COPY ADF SUB REGIST SFINE SUB REGIST FINE SUB REGIST STD SUB ZOOM COPY SUB ZOOM SFINE SUB ZOOM FINE SUB ZOOM STD r BOOK SCAN L R r BOOK COPY L R BOOK FAX L R ADF SCAN L R ADF COPY L R ADF FAX L R MP CASSETTE DUPLEX MP DUPLEX CAS LEFT MP LEFT CASSETTE LEFT DUPLEX MP LEFT DUPLEX CAS DONT F 13 3 lt gt Bt 12345678 SOFT SWITCH SW01 Not used swo2 00 SW03 SWO06 Not used SW07 Not used SW08 Not used SW09 Not used SW10 10 SW11 SW15 Not used SW16 0 SW17 Not used SW18 Not used SW19 Not used SW20 Not used SW21 Not used SW22 Not used SW23 Not used SW24 Not used Sw25 S
11. 13 4 Chapter 13 13 2 2 SSSW SWO2 13 2 2 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 1 Function 1 0 E Not in Use RTN Transmission Condition 1 0 RTN Transmission Condition 1 0 Not in Use Change the Message Language Displayed Not displayed Not in Use Not in Use oo sa tan fF WN Not in Use 13 2 2 2 Bit 2 and 3 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 If errors resulting from RTN signal transmission occur frequently while receiving increase the parameter and ease the RTN transmission condition The RTN transmission condition is defined as a percentage of the number of error lines in the total number of lines of a received image page Itis a combination of Bit 2 and Bit 3 and the percentages are shown below T 13 2 Bit2 Bit3 0 0 1094 1 0 1596 0 1 20 1 1 25 13 2 2 3 Bit 5 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 If displayed is selected an item is added to the user data so that the message language can be changed By doing so the language in which messages displayed on the screen and printed on the reports can be selected from a list of languages 13 2 3 SSSW SW04 13 2 3 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 3 Function 1 0 E Not in Use Not in Use Not in Use Not in Use Not in Use Not in Use N
12. 9 3 10 NCU Board 9 3 10 1 Preparation for Removing the NCU Board i SENSYS MF4150 i SENSYS MF4140 1 Remove the front cover 2 Remove the right cover 9 3 10 2 Removing the NCU Board i SENSYS MF4150 i SENSYS MF4140 1 Remove the NCU board 3 1 connector 1 3 screws 2 F 9 25 9 3 11 Power Supply PCB 9 3 11 1 Preparation for Removing the Power Supply Board i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 9 3 11 2 Removing the Power Supply Boar i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the power supply board 3 2 connectors 1 6 screws 2 2 11 F 9 26 9 3 12 High voitage Power Supply PCB 9 3 12 1 Preparation for Removing the High Voltage Power Supply Board i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 5 Remove the control panel 9 6 6 Remove the cartridge cover 7 Remove the upper cover 9 3 12 2 Removing the High Voltage Power Supply Board i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Unhook the 2 claws 1 and remove the fixing guide 2 F 9 27 2 Disconnect the 3 connectors 1 located at the backside and free the cable 2 from the cable guide F 9 28 A Points to Note When Attaching
13. 0 2 0 mm 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm 1 1 4 2 Scanning Range copyboard i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 2 4 3 T 6 1 leading edge of document 2 left margin 3 effective scanning width 5 F 1 11 4 right margin 5 scanning range 6 trailing edge of document T 1 6 item A4 Letter effective scanning width 206 mm 212 mm left margin 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm right margin 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm 1 1 4 3 Recording Range Copy i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 2 a 3 7 Is 8 Te 9 F 1 12 1 leading edge of document 2 left margin 3 effective scanning width 4 right margin 5 trailing edge margin 7 8 non scanning area scanning range 6 trailing edge margin 9 trailing edge of document Chapter 1 T 1 7 item A4 Letter Legal effective recording width 204 1 0 2 0 mm 210 2 0 2 0 mm 210 2 0 2 0 mm margin effective recording left 3 0 2 0 2 0 mm 3 0 2 0 2 0 mm 3 0 2 0 2 0 mm right margin 3 0 2 0 2 0 mm 3 0 2 0 2 0 mm 3 0 2 0 2 0 mm leading edge margin 4 0 2 0 2 0 mm 4 0 2 0 2 0 mm 4 0 2 0 2 0 mm trailing edge margin 5 0 2 0 2 0 mm 5 0 2 0 2 0 mm 5 0 2
14. 13 5 1322 B1t 2 and 3 Blabotafed me REIHE SED EINEN ODDS ETA LL ree D tat 13 5 132 223 Bit S Blaborated AAA LTD OO SS ms 13 5 13 23 5SSW SW0A EE 13 5 13 23 I F tiction List 5 iii E T a E fre na an p ede e os 13 5 13 2 3 2 Bit 8 Elaborated AA URS RE EBEN RR RUE CESSARE NR RENE NOR ate 13 5 13 224 SSSW SW Q reb i pepe ee e ait RU IPEA 13 5 13 2 4 1 Function List 13 2 4 2 Bit 1 Elaborated 13 2 4 3 Bit 2 Elaborated 13 6 ESSERE MELO 13 6 13 2 5 I Eunction List oS ne eto n aee hi etd iar nn P eR m e HU A 13 6 13 2 2 Bit 3 Blaborated RARI ERE REA RR HERE EN RR a ne 13 6 13 256 SSSW SWO2 I eiecti eese E rin OPERUM ERR S REX DE E ER TEE AS I ERE RE saute aa al RR EE Rer ENS ERR RET 13 6 13 261 Function Bt CUP 13 6 13 2 6 2 Bit 4 Bl borated err t eere eti stie e ee Heels Ness eset tene lero dE e 13 6 13 27 SSSW S W330 RARA 13 6 EPA meiner RE EPA EN VV Ed oh edd alti aren O ANO 13 6 13 2 7 2 B1t T and 8 Blaborated 45 e sema eek EUER iR EUR ER EXE ERG IY E EAR WU EE aloes EU sagas ade 13 7 13 22 89 SSS WES W371 ics n e herr b n e e ebbe etes ag e ela de aban ble o e d ete obe rie blue 13 7 13 2 83 Function EASUS Re er tere SEE etn CR PR tte een NE tet ao ROT UE m 13 7 13 2 8 2 Bit I to Bt 6 Elaborated cce ici 13 7 13 2 9 SSSW SW39 u 13 7 1
15. 3 2 2 Removing the Rear Cover i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the 2 shafts 1 and detach the feeding cover 2 2 Remove the rear cover 3 4 screws 1 2 claws 2 9 3 3 Right Cover 9 3 3 1 Removing the Right Cover i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Unhook the 6 claws 1 and detach the right cover 2 F 9 6 9 3 4 Left Cover 9 3 4 1 Removing the Left Cover i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front over 2 Close the cartridge cover 1 3 Remove the 3 screws 2 to remove the damper 3 Chapter 9 Once removing the damper the control panel cannot be fixed Take care not to catch your hands in the control panel since you have to perform operations with the control panel opened afterwards 4 Remove the damper stopper 3 1 screw 1 1 claw 2 5 Remove the damper rail 3 2 screws 1 1 claw 2 6 Open the cartridge cover 1 7 Unhook the 5 claws 2 and detach the left cover 3 9 3 5 Upper Cover 9 3 5 1 Preparation for Removing the Upper Cover i SENSYS MF4150 i SENSYS MF4140 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 5 Remove the control panel 6 Remove the cartridge cover 9 3 5 2 Removing the Upper Cover i SENSYS MF4150 i SENSYS MF4140 1 Remove the 4 scre
16. CNTO CNT1 T 5 1 Operation mode CNTO CNTI Remarks Discharge mode L L Discharge of C803 Print mode H L Use at normal printing LD APC mode L H Use at LD APC LD forced OFF mode H H Use at masking image 5 3 Controlling the Intensity of Laser Light 5 3 1 Auto Photoelectric Current Control APC i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 This is the control to emit the definite level of laser diode There are initial APC during initial rotation note 1 and line space APC during printing note 2 which are performed in the same procedure The following is its procedure 1 jWhen the laser control signal CNTO CNT1 turned into LD APC mode the laser driver emits LD forcedly 2 After being detected with the photodiode PD the LD emission level as current is converted to the one as voltage and compared with the reference voltage the voltage equivalent to the target laser level 3 The laser driver controls the laser current until it reaches the voltage of LD target level 4 When the laser control signal turns into LD forced OFF mode LD is forcedly off and the laser driver converts the adjusted laser level to the voltage of the condenser and keeps it A Note 1 Initial APC APC during initial rotation Laser level is adjusted by APC Note 2 Line space APC APC during printing Adjustment of laser level for one line is performed before writing one line Chapter 5 5 4
17. MF4150 1 2 3 4 6 7 8 9 10 11 12 23 22 21 1 System Monitor key 2 View Settings key B COPY key 4 FAX key 5 SCAN key 18 17 16 15 14 13 13 Stop Reset key 14 Error indicator 15 Processing Data indicator 16 Start key 17 Numeric key 6 Additional Functions key 18 Tone key 7 2 Sided key 19 Clear key 8 Enlarge Reduce key 20 key 9 Density key 21 OK key 10 Image Quality key 22 key 11 Collate 2 on 1 key 23 Toner Gauge key 12 Energy Saver key F 1 6 T 1 8 1 Hook key 2 Redial Pause key 3 Coded Dial key 4 Address Book key 5 R key 6 One Touch Speed Dial keys Chapter 1 MF4120 MF4122 21 20 19 18 17 16 15 14 13 12 F 1 7 T 1 4 1 System Monitor key 12 Stop Reset key 2 View Settings key 13 Error indicator 3 COPY key 14 Processing Data indicator 4 SCAN key 15 Start key 5 Additional Functions key 16 Numeric key 6 2 Sided key 17 Clear key 7 Enlarge Reduce key 18 key 8 Density key 19 OK key 9 Image Quality key 20 key 10 Collate 2 on 1 key 21 Toner Gauge key 11 Energy Saver key 1 1 2 Safety 1 1 2 1 Safety of the Host Machine s Laser Mechanism i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120
18. ae tthe tea risk teneis essi ce e heri ue 7 2 go Ke ipi e PEE RE RR 7 2 7 3 Detection Jams Hirte eit epp tte eddie dic tei hens 7 3 7 3 1 Jam Detection Outline iere preter eite eh edge di lada 7 3 ye Me ER 7 3 7 32 Delay JAS tete A A ad 7 3 7 3 2 T PICKUP Delay Ja A A A erdt eee eie e aa eee das 7 3 73 22 Delivery Delay JAM nuit Ha Hebel Ci d er deos 7 3 7 3 3 Stationary Jams vec ash la ee 7 3 733 1 Pickup Stationary Jam a kan SAS RR De ck do 7 3 1332 Delivery Stationary Jar ento tm nere rer ep ee ep ers dae uM dr eR dpa sen ddehesdasayeousheevasasnconsdavorseae a a AA 7 3 7 3 4 Other AOS ad 7 3 7341 Door Open Jam coria ee Hallo Hansi 7 3 7342 Wrapping Jam tere rn e A e e ie itn e n A eet HS 7 3 Contents 7 3 4 3 Residual Jam at Startup 74 Duplex Unit Dp nosse 7 5 Parts Replacement Procedure 44444444444444400nennnnnnnnnnnnnnnnnnnnnnnnannnnnnnnnnennnnnnennnnnnnennnnnnnenn nennen 7 9 61 Mali dE I G H en lee 7 5 1 1 Preparation for Removing Main Motor 2400444440022nn00nnannnnnannnnnannnnanannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnannnnnnnnnne 7 5 1 2 RemovingMalirni Motor oie ee eee aia as e i e a a i ee e e TD 2 Separation Pad crede eerta enters ee ee PER rr E E PHOT capa 7 5 2 1 Preparation for Removing Separation Pad 7 5 2 2 Removing Separation Pad
19. i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Enables to choose whether or not to carry out V 8 procedure during outgoing calls Change the setting to No and V 8 procedure will not be carried out even if V 8 procedur has been received from the caller and T 30 procedure will be initiated 13 2 10 SSSW SW51 13 2 10 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 13 Function 1 0 Ed Not in Use Not in Use Protocol Monitor Report Output 1 0 Protocol Monitor Report Output 1 0 Not in Use Not in Use Not in Use oo IO tU hu Mm Not in Use 13 2 10 2 Bit 3 and 4 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Enables to specify the output setting of protocol monitor report Each combination of Bit 3 and Bit 4 as shown below determines the output setting T 13 14 Bit3 Bit4 0 0 Do not print 1 0 Print 0 1 Print when error occurs 1 1 Not in use 13 2 11 SSSW SW54 13 2 11 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 15 Function 1 0 Ed Not in Use Not in Use Not in Use Not in Use Not in Use Time and Date Display in Reports 1 0 Time and Date Display in Reports 1 0 o IS BRO Not in Use 13 2 11 2 Bit 6 and 7 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Enables to select from different types of time and date display used in repo
20. must always be disposed according to the appropriate local regulations 1 1 2 6 Points no Note when Replacing Disposing the Lithium Battery i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 A Replacing to wrong type of battery may cause explosion Dispose used battery according to the instruction manual Chapter 1 1 1 3 Product Specifications 1 1 3 1 Host Machine Specifications i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Copyboard fixed type Body desktop ADF standard type MF4130 MF4150 only Light source type LED Image reading method contact sensor scanning method Photosensitive medium OPC drum Reproduction method indirect static copying method Exposure method semiconductor laser Charging method roller contact charging method Development method dry single component projection development Transfer method roller transfer method Separation method electrostatic separation static eliminator curvature separation Pickup method cassette pickup 1 multi manual feeder Cassette pickup method pad separation method Multifeeder pickup method pad separation method Drum cleaning method rubber blade Fixing method SURF on demand method fusing Toner supply type built in drum toner cartridge Toner type magnetic negative toner Toner save mode Yes Original type sheet book three dim
21. specified value CPU outputs DEC signal to decelerate the scanner motor CPU controls ACC or DEC signal to control the rotation of the scanner motor until it becomes its specified value 5 4 3 Detection of Fault of the Scanner Motor i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 CPU of the DCNT board monitors the frequency comparator to judge if the scanner motor rotates at the specified rotation frequency When the following statuses occur CPU judges that there is a fault or error and stops the engine At the same time it notices the details of the error to the SCNT board 1 Scanner fault If BDI signal cannot be detected 1 5 sec after completing forced acceleration of the scanner motor extend the detection time by 120sec If the specified cycle of BDI signal cannot be detected it should be judged as scanner fault 2 BD fault If BDI signal cannot be detected in 100msec after forced acceleration of the scanner motor or the specified cycle of BDI signal cannot be detected for 2 sec or more after the scanner motor reached its specified rotation it should be judged as BD fault 3 BD error If BDI signal cannot be detected at the specified cycle while CPU outputs BD signal to the SCNT board it should be judged as BD error If door open is detected in 200msec after BD error was detected CPU does not transmit BD error to the SCNT board Chapter 5 5 5 Parts Replacement Procedure 5 5 1 Laser Scanner Unit 5 5 1 1 Prep
22. 0 2 0 mm 1 1 4 4 Recording Range Reception i SENSYS MF4150 i SENSYS MF4140 1 2 3 Te 9 1 leading edge of document 2 left margin 3 effective scanning width 4 right margin 5 5 leading edge margin F 1 13 6 trailing edge margin 7 non scanning area 8 scanning range 9 trailing edge of document T 1 8 item A4 Letter Legal effective recording width 206 1 0 2 0 mm 212 2 0 2 0 mm 212 2 0 2 0 mm left margin 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm right margin 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm leading edge margin 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm trailing edge margin 6 0 2 0 2 0 mm 6 0 2 0 2 0 mm 6 0 2 0 2 0 mm 1 1 4 5 Recording Range Printer i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 2 3 9 7 Is F 1 14 Chapter 1 1 leading edge of document 2 left margin 3 effective scanning width 4 right margin 5 leading edge margin 7 8 1 6 trailing edge margin non scanning area scanning range 9 trailing edge of document T 1 9 item A4 Letter Legal left margin 5 0 2 0 2 0 mm 5 0 2 0 2 0 mm 5 0 2 0 2 0 mm right margin 5 0 2 0 2 0 mm 5 0 2 0 2 0 mm 5 0 2 0 2 0 mm leading ed
23. 2 Manual feed tray paper guide 13 Paper trail edge guide 14 Paper cover 15 Manual feed tray 16 Power switch 17 Copyboard cover MF4120 MF4122 MF4140 10 1 1 Chapter 1 Rear View Body 11 2 F 1 2 T 1 1 1 USB port 4 Phone line terminal MF4140 MF4150 only 2 Rear cover 5 Phone teminal MF4140 MF4150 only 3 Appliance inlet 6 Handset terminal MF4140 MF4150 only 1 1 1 2 Section View Host Machine i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 2 3 4 5 Q1 14 d 13 12 11 9 1 pressure roller 8 vertical path roller 1 2 Chapter 1 2 copyboard glass scanning glass 9 separation pad 3 delivery roller 10 cartridge 4 fixing film unit 11 duplexing feeding roller 5 laser scanner unit 12 transfer charging roller 6 primary charging roller 13 photosensitive drum 7 developing cylinder 14 fixing unit 1 1 1 3 Section View ADF i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 registration roller 2 pickup roller 3 separation pad 4 delivery roller Chapter 1 1 1 1 4 Control panel i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 MF4140
24. 3 2 9 1 Function List 13 7 13 2 9 2 Bit 7 Elaborated 13 7 13 2 9 3 Bit 8 Bl boratedozc rm Ran RE RT EAN rein 13 8 1322220 SS WA ARTUR OR AS dera oe e E DEP EO EO ias 13 8 132 TO D EninctOn a cen di dido irt 13 8 13 2 10 2 Bit3 and AA One p RO C RE e E ORE pru nes 13 8 13 22 12 SSS WES WA CPP E A rei anos 13 8 13 2 11 1 Function Bist A eee 13 8 13 2 11 2 Bit 6 and 7 AA O SEN USOU CORRE E ES ERN TUER ER REO SSD 13 8 133 Report Output REPORT Era a Rain cua tus dei pa ev tas seh NS RIEN thoes 13 9 13 321 Service data lista RN 13 9 13 4 Test Mode TEST A A Ud eee reed 13 9 13 41 Overview A ES dada ids A dass 13 9 O A A RR nr NOU pat Gto RTT ENDISSE 13 9 13 4 1 2 Test mode menu S eere Or COL SN 13 9 14D Faculty KE nee ttm t Besserer e a c aio s oligos aeter Re o e Re eR eode Rg aba 13 10 13 4 2 1 Print test pattern sinere re Pede I ee PR e Fe n EC ee dr Pee an lc e e e ETE E SUR ORA DER OTRAS 13 10 IX RANT UAI IR S 13 10 13 423 Key tests scx doen a e aam eei ntt e esten tet es eene 13 10 Chapter 13 13 1 Outline 13 1 1 Setting Service Data i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Service Mode contains the following service data items Each service data can be viewed or modified using the menu items displayed on the screen SERVICE S CHOICE Contains items such as service data formatting to the user data data transmission reception speed setting etc ADJUST Contains a margin ad
25. 5 3 RI MOI MT uM I 5 3 5 4 2 Scanner Motor Speed Control ccoo tete edem e E Hd eec Ht ente EHE ada 5 3 5 4 3 Detection of Fault of the Scanner Motor e esee ene nener ener ers aeee nn ns sehr nr rn anar nn rra e nnns 5 3 5 5 Parts Replacement Procedure 2 ce eccecceeceeeeeeeeeeeeneaaeaeceeeeeeeeeeeesadceceaaaaeaeeceeeeeeeeseescesecnaeaeeeeeeeeess 5 4 5 4 Easer Scanner Unless dc pena siendo 5 4 5 5 1 1 Preparation for Removing the Laser Scanner Unit enne eene tenere nennt nnn nnne nn rns snnt rennen 5 4 5 5 1 2 Removing the Laser Scanner Units oreet ER ER ds 5 4 Chapter 6 Image Formation 6 1 Overview Configuration sisikii gidirna adei ai ra a a ri E a a aA raa SEA A eaaa 6 1 SM Configuration ssi NN 6 1 62152 Print Pr cess ia A cete A E T 6 1 6 2 Driving and Controlling the High Voltage System conan nana rc nano narrar araras 6 2 6 2 1 Generation of Transfer Charging Bias nenn nnnn nennen enne en eee nene ener nennen enne 6 2 6 3 Parts Replacement Procedure anna a e a e e a eai 6 3 6 3 1 Transfer Charging Roller sieve ais eich cist en Is 6 3 6 3 1 1 Removing the Transfer Charging Roller 224004444000snHnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnsnnnnnnnnnnnnannnnnn 6 3 Chapter 7 Pickup and Feed System 3 Overview Conflguration iuit t bg edges ee essen Haile 7 1 UNO WII AME AAA oi H 7 1 TAO Mer GOntrolzz it doa etri
26. 5 ster Soon 1 Ben CAUTION cuss 38 musaLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO THE BEAM RAYONNEMENT LASER INVISIBLE DE CLASSE 38 ATTENTION EN CAS D OUVERTURE EVITEZ L EXPOSITION AU FAISCEAU UNSICHTBARE LASERSTRAHLUNG KLASSE 38 WENN ABDECKUNG VORSICHT GE FFNET NICHT DEM STRAHL AUSSETZEN RADIACI N LASER INVISIBLE DE CLASE 38 PRESENTE AL ABRIR PRECAUCI N EVITE LA EXPOSICI N AL HAZ KLASS 38 OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD VARNI NG STRALEN AR FARLIG em LUOKAN 38 NAKYMATTOMALLE LASER SATEILYA AVATTUNA VAROITUS VALTA ALTISTUMISTA SATEELLE Jot BS 38 virial 240 44 Ato VAELH SE use K 10C RUS 8126 1 1 2 4 Safety of the Toner i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Toner in General Toner is a non toxic material made up of plastic iron and small amounts of dye A Do not throw toner into fire Doing so can lead to explosion Contact with Toner 1 Toner on the skin or clothes must be removed by washing with water immediately 2 The use of warm water must be avoided doing so will cause the toner to turn gel like and to permanently fuse with the fibers of the clothes 3 Contact with vinyl must also be avoided as toner can readily react 1 1 2 5 Fire Attention i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 It is dangerous to throw the parts that include combustible materials such as lithium battery and toner cartridge etc into fire Any used battery
27. 50 sheets thick paper 91 to 105 g m2 30 sheets thick paper 106 to 128 g m2 10 sheets label transparency envelope postcard Continuous reproduction 1 to 99 print s Energy save mode Yes manual ON OFF auto OFF at a certain period of time auto ON at fax reception print data reception Operating environment temperature range 15 to 30 degC Operating environment humidity range 10 80 Operating environment atmospheric pressure 0 61 to 1 01 hpa 0 6 to 1 atm Power supply rating 220V 240V 50 60Hz 120V 60Hz Power consumption maximum maximum consumption 670W or less Power consumption consumption at operation mode approx 340W or less reference value consumption at standby mode approx 8 5W reference value consumption at sleep mode approx 3W reference value Ozone max 0 05 ppm or less average 0 02 ppm or less Dimensions MF4150 390 W x 432 D x 370 H mm document pickup tray attached MF4120 MF4122 MF4140 390 W x 432 D x 303 H mm Weight MF4150 13 4 kg approx toner cartridge included MF4120 MF4122 MF4140 12 4 kg approx toner cartridge included 1 1 3 2 ADF Specifications i SENSYS MF4150 Original orientation Face up method Original position center reference Original processing mode 1 sided to 1 sided copy 1 sided to 2 sided copy Original reading stream reading method
28. 6 9 3 12 2 Removing the High Voltage Power Supply Board 22440444400unsnnnnnnnnnonnnnnnonnnnnnennnnnennnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 9 6 Chapter 10 Maintenance and Inspection 10 1 Periodically Replaced Parts nn 00mm de danh hend eit hne siet bna deban eda 10 1 10 1 1 Periodically Replaced Parts 40 do Xa qus a E i De dere Xa sre run xe duse 10 1 102 Gonsurables ii ue Eheu eM 10 1 10 2 T Consutrrable 25 ort Ret tinae De iet eie eie eina riim 10 1 10 3 Periodical ServiICO oor reti te aententia iR ioc EH dtt EE delicate Ue He E ene tact 10 1 10 3 1 Periodically Service Items He enter ia 10 1 10 4 Cleaning ui cater E EL eU EU de LR bp e tens 10 1 10 4 1 Cleaning tems tint petiere en Lee ap Eha c peu dde suec Eoo Lg edo Bene kao E ARR og dL oe 10 1 10 4 2 Cleaning Method External Covers enne nnnen errem eren inneren ener nnne 10 1 10 4 3 Cleaning Method Reader Unit sess nnne rre narran ai inerenti nennen nene 10 2 Chapter 11 Measurement and Adjustments HT Basic Adjustments i it eet io Pd dida Ret 11 1 TET TAdjustment Items m nte e eee ia 11 1 11 1 2 Paper Margin Adjustment 1 1 meine dd 11 1 11 1 3 Reading Adjustment 0 24er aan 11 1 1 1144 Print Adjustment zer ie a eed IRI UE eim ut e 11 2 Chapter 12 Error Code IEN o 8010 re ic ee 12 1 12 L I Error
29. 62 Removimg the Cartridge Cover s nod eee ea te or HO Rei a SO EEG Ee Ht ORE MERERI Re ape 9 3 7 Operation Panel UR 9 3 7 1 Removing the Control Panel Unit 93 8 SEN BO Ree A OR OU Od Pen ine Reage 9 3 8 1 Preparation for Removing th SCNT Boda 9 4 93 82 NON eerte epi se ire ire ae m He eter ne B ep ie res 9 4 09 DONT Board er a a rM rcc ero netos LM Ead c td bM 9 4 9 3 9 1 Preparation for Removing the DENT Board xn enable aan Cones GOR 9 4 9 3 9 2 Removing the DENT Boat SA TRECE ERR MT RE pan ETT ERE N 9 4 9310 NCU Bodtd des dad 9 6 9 3 10 T Preparation for Removing the NGU Boatd iiie ep ee epa pr le ep EE ire reines 9 6 9 3 10 2 Remoyimg the NGU Board iS 9 6 9 3 11 Power Supply PCB p 9 6 9 3 11 1 Preparation for Removing the Power Supply Bold deseen ee ee etae e e Ve E e ee Hg ee e e Le EE RE 9 6 93 112 Removing the Power Supply Boar l c A CORR HE RAE 9 6 9 3112 High voitage Power Supply PGB nre Els iia ete tel d Ed esp ep ue bi pn oo 9 6 9 3 12 1 Preparation for Removing the High Voltage Power Supply Board ueessssesesesnenenennenenennenennnennenenennnnnnenennennnennenenenenennnonnenenenonnennnann 9 6 9 33 12 2 Removing the High Voltage Power Supply Board 5 n ren rrt deii RO nente riri oS 9 6 Chapter 9 9 1 Control Panel 9 1 1 Outline i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The machine s control panel consists of the following PCBs and is cont
30. Can t detect phase 3 signal after Phase 2 00B6 Can t detect phase 4 signal within 25 sec after CM JM exchange 12 2 Chapter 12 Error Code Description 00B8 Remote side disconnect after our side sending DCS signal in V 34 00BA Cannot received correct signal after our side sending DTC signal in V 34 00BB Every time our side received DIS signal after sending DTC in V 34 00BC Modem can t ready within 10 second after entering primary channel in V 34 00BD Can t detect correct V 21 or JM signal after detected FSK frequency 00BE Remote side no document to be polled after V 8 handshaking 00BF Capability no match after V 8 handshaking 00C1 At phase D transmitting units out EOP 3 times consecutively but receive no answer from receiving unit 00C2 Remote side disconnect after sending out V 8 CM signal 00C4 After sending MPS signal the received is not one of MCF RTN PIP PIN RTP DCN 00C5 Received DCN signal after sending MPS signal 00C9 At phase D sending MPS 3 times consecutively but no answer from receiveing unit 00CA After sending EOP signal the received is not one of MCF RTN PIP PIN PRI EOP DCN RTP 00CB After sending EOP signal the received is DCN signal 00CF Received incorrect signal after sending DTC signal for V 34 polling 00DO Received ER
31. Coder OUIINE tt NUR Ceu rame eae E A O 12 1 12 72 Error GOS 2 nx tees a is ata te anna 12 1 Chapter 13 Service Mode 13 1 O tlne 222 nee rare a o ld e PDR DER de 13 1 13 1 1 Setting Service Data ia 13 1 13 1 2 How to Activate Service Od ea re re e a Eaa Aa E aa e aaae a E aa eaaa a aiaa ta re AEE 13 1 13 1 3 Service Data MT RR 13 2 13 2 Service Soft Switch Settings SSSW e A a Er nar rr crac rr 13 4 13 2 AVOUT ING s eie E A E REM de ricrd 13 4 3211 SOFT SWITGEUEXplained mti ec do euch Do dada La EHE 13 4 ESAS AA ehe 13 5 A A O E 13 5 13 222 Bit2 and 3 Elaborate d e tec RR dioere toda edb t edere eee n de eui a 13 5 3 22 33 Bit 5 BElaborated mass ra a ede e eiie ree viet da Sheu Dana A e e E d ER IEEE TREE e deve EVA liga o 13 5 13 2 3 999W SW04 LLL eet emt ri ERU E eme er d ie Ene rere ripe 13 5 O oper er anne T DURER 13 5 13 2 32 Bita Elaboraled 2 2022 e nan deat en ned ee a E ed ie dece i ds 13 5 13 24 SSSW SW A eaaa aE aaa n a aeaa ae a ad eade laaa d pa aeina iaai naia aeiia in iiae 13 5 Contents 13 2 4 1 Function List we 13 5 13 2 4 2 Bit 1 Elaborated 13 2 4 3 Bit 2 Elaborated we 13 6 13 2 5 SS SWHSW EEE E nisi RN NAT 13 6 1325 1Funchon EISt A AR e eR era e eere E a E EYE Ae ea 13 6 13 2 52 Bit 3 Elaborated en an S EN RIDE REIN ER DU rod Rede NEE 13 6 13 2 6 SSSW SW2 AM A Ai iii ais 13 6 132 61 Function Lis
32. Controlling the Laser Scanner Motor 5 4 1 Overview i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 This is the control to rotate the scanner motor at constant speed The scanner motor is the 3 phase DC brush less motor with hall element included and is combined with the drive circuit The following chart shows the control circuit for the scanner motor DCNT board Laser scanner block do o po e re m ee F 14902 1 BD Jo31 9 Y BD sensor i 1C902 E ds CPU oy 24y A J904 1 J932 4 Y j Des IDEC J932 3 a Frequency comparator pes ACC 9322 circuit jJ904 4 J932 1 j Reference H clock TT xso2 i Divider ES Scanner motor MEE L F 5 3 5 4 2 Scanner Motor Speed Control i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 This is the control to rotate the scanner motor at constant speed The following is the procedure of this control 1 At activating the scanner motor CPU outputs ACC signal to the scanner driver IC to accelerate the scanner motor forcedly The scanner motor will start rotating 2 CPU periodically turns on the laser and compares BDI signal and the cycle of the reference clock to detect the rotation of the scanner motor 3 When the rotation of the scanner motor exceeds the
33. Do not confuse the connecting target for the black cable and the red cable Make sure to connect to the respective terminals stamped as RED and BLACK 3 Remove the high voltage power supply board 3 10 connectors 1 5 screws 2 Chapter 10 Maintenance and Inspection Contents Contents LOJ Periodically Replaced Pati edi DE Es Hl 10 1 10 11 Periodically Replaced Parts 2 ses trinii coucbcesdeudeuceudedces ne seines es es ces Pee Sa va ca 10 1 10 2 Consumables 10 2 1 Consumable 10 3 Periodical Service nikon 10 1 10 3 1 Periodically Service Items 22 0 0 anal Cena eoe eae Fe Ends era do dead aa caetano ln dead Sd Saca 10 1 IO Cleaning or er et tete uen COST e o gaia ipiis ee hoe li o 10 1 10 4 1 Cleanine Items resalta ee rt ede add aides de dde e ei bee ped eee Hle e ties bete ibn dete 10 1 10 4 2 Cleaning Method External Covers een nein ee 10 1 10 4 3 Cleaning Method Reader Unit eese eene netten ener nne entente i iniiaiee 10 2 Chapter 10 10 1 Periodically Replaced Parts 10 1 1 Periodically Replaced Parts i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 There are no periodically replaced parts with this machine 10 2 Consumables 10 2 1 Consumable i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 10 3 Periodical Service Charge User Field engineer Consumable Toner cartridge FX 10 T 10 1 Standard of exchange T
34. ENSYS MF4140 i SENSYS MF4120 1 Open the copyboard glass cover 1 and remove it upward Pull out the hinge 2 on the left side while keeping it tilted toward the back A Place the detached copyboard glass cover on cloth etc not to damage the bot tom sheet F 3 4 2 Reverse the copyboard 1 and detach the bottom cover 4 2 screws 2 5 claws 3 3 3 F 3 5 2 1 4 Reverse the copyboard 1 again 5 Remove the 4 screws 2 and detach the copyboard cover 3 6 Remove the copyboard glass 4 A Do not make dirty the bottom of the copyboard glass Chapter 3 7 Unhook the 1 claw 1 and remove the gear 3 with the belt 2 11 3 F 3 11 4 Remove the 2 spacers 1 5 Remove the contact sensor unit 2 upward F 3 8 8 Remove the 3 screws 1 to remove the shaft retainer 2 the grounding plate 3 and the motor unit 4 F 3 9 9 Remove the 2 screws 1 to remove the flat bed motor 2 Y A Points to Note at Attaching Be sure to fit the gear 1 of the belt with the gear 2 on the bottom surface ofthe contact sensor unit 3 2 3 Contact Sensor 3 2 3 1 Removing the Contact Sensor i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 2 1 F 3 13 1 Open the copyboard glass cover 1 and detach it upward Pull out the hinge 2 on the left side while tilting it toward the rear side 6 Disconnect the connecto
35. EST ADF DES TEST ADF detect CRG TEST ADF detect H TN VALUE toner remain value 0 255 RING DETECT CNG DETECT AnsMode CNG DETECT FAX TEL F 13 10 13 4 2 3 Key test i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 KEY TEST is selected from the H W TEST menu In this test whether the button on the operation panel works correctly can be checked Operation key test In this test the character on the display disappears when the key corresponding to the character is pushed The correspondence table of the character and the key is as follows When the key is pushed for all keys it is checked that the corresponding character on the display disappears T 13 17 Character Operation button Character Operation button Character Operation button 0 9 Numeric key tone key K Start key V Hook key A COPY key L Clear key a One Touch Speed Dial 01 key B SCAN key M Energy Saver key b One Touch Speed Dia 02 key C Additional N View Settings key c One Touch Speed Dia Functions key 03 key D System Monitor key O 2 Sided key d One Touch Speed Dial 04 key E Enlarge Reduce key P Toner Gauge key e One Touch Speed Dia 05 key F Density key Q OK key d One Touch Speed Dia 06 key G Image Quality key R FAX key g One Touch Speed Dia 07 key H Collate 2 on 1 key S Address Book key h One Touch Speed Dial 08 key or Reset key I key T Coded Dial key J key U Redi
36. Laser radiation can prove to be harmful to the human body The host machine s laser scanning system is completely sealed by means of a protective housing and external covers so that its light will not leak outside the host machine as long as the host machine is used normally 1 1 2 2 CDRH Regulations i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The Center for Devices and Radiological Health CDRH of the US Food and Drug Administrator put into forth regulations that relate to laser products on August 2nd 1976 These regulations apply to laser products produced on and after August 1st 1976 and prohibit the sale of laser products without certification The following labels certify compliance with the CDRH regulations and must be attached to all laser products that are sold in the US CANON 30 2 SHIMOMARUKO 3 CHOME OHTAKU TOKYO 146 JAPAN MANUFACTURED THIS PRODUCT CONFORMS WITH DHHS RADIATION PERFORMANCE STANDARD 21CFR CHAPTER 1 SUBCHAPTER J Chapter 1 1 1 2 3 Handling of the Laser Assembly i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Invisible laser beam is radiated within the laser scanner unit Laser beam radiation may pose damage to eyes Be sure not to disassemble the laser scanner unit The host machine s laser scanner unit cannot be adjusted in the field The label 1 shown in the figure below is attached onto the cover of the laser scanner unit Invisible k idiation wht DANGER 1
37. R signal after sending EOR_NULL 00D1 Received incorrect response after sending PPS_EOP signal 00D2 Received DCN after sending PPS_EOP signal 00D3 Received DCN after sending PPS_NULL signal 00D8 Can t detect correct phase 3 signal for poling 00D9 Can t detect correct phase 3 signal after detect silence after phase 2 00DA Can t detect phase 4 signal within 30 sec 00DB Can t received any T 30 signal within 30 sec within phase 4 00DC Received T 30 signal in phase 4 other than DCS DIS or DTC 00DE Remote side no SUB capability 00EO At phase D transmitting units out PPS_NULL 3 times consecutively but receive not answer 00El Received incorrect response after sending PPS_NULL 00E2 Can t receive any response in RR response procedure after sending PPS_NULL 00E4 At phase D transmitting units out PPS_MPS 3 times consecutivery but receive no answer 00E5 Received incorrect response after sending PPS_MPS signal 00E6 Can t receive any response in RR response procedure after sending PPS MPS 00E7 Reseived DCN after sending PPS MPS 00E8 At phase D transmitting units out PPS EOP 3 times consecutively but receive no answer 00E9 Receive PIN signal after sent last page data 00EA Can t receive any response in RR response procedure after sending PPS EOP 00EE At phase D transmitting units out EOR_NULL 3 times consecutively but receive no answer OOEF Received incorrect response after sending EOR_NULL 00FO Can t receive any response in RR resp
38. S signal 008B Receivers protcol of DIS is received but it is not compatible with our machine 008C Remote side or our side not support capability 008D Receivers protocol of DIS is received but remote side can t receive document temporary may because by run out of paper or other reason 008F Modem not ready to received V 34 data within 6 sec after received CFR signal 0090 Called side document not ready for our polling 0091 Can t receive any commabd after send DCN signal 3 times consecutively 0093 Received DCN signal after sending out DCN signal 0094 Time out during transmit ECM frame or RCP command 0095 Wrong ID number 0096 SUBADDRESS PASSWORD capability not match in polling Rx mode 009A Can t detect any signal after sending CI signal 009D Remote side hang up before V 34 modem enter phase 2 state in V 34 polling Rx 009E Manual Tx over 15 minutes whin in phase C by non ECM mode 00A0 User stop or cancel transmission job 00A1 Document JAM within transmission 00AE Can t finished V 8 procedure or detect V 21 signal after CM signal 00AF Modem can t enter into control channel after TX side sending out RCP signal for V34 00B1 Can t finish V 8 procedure or detect V 21 signal after ANSam signal within 35 sec 00B2 Can t detect phase 2 signal after our side sending CJ signal within 30 sec 00B3 Can t detect correct V 21 or JM signal after sending CM or CJ signal 00B4 Can t detect correct phase 2 signal within 25 second after CM JM signal exchange 00B5
39. SYS MF4140 i SENSYS MF4120 The following cases are judged as jam 1 In case of delay in reaching DS DES or stationary during scanning of original 2 In case DS DES is detected as ON at power on residual paper jam 3 In case of detecting original of which length is 400 mm or longer Operation after Detection of Jam The host machine stops scanning operation and displays CHECK DOCUMENT on the control panel No jam code is displayed In case ofthe model equipped with fax function with built in speaker the warning beep occurs at the detection of jam How to release Jam Remove the jammed paper and open close the ADF upper cover Chapter 4 4 3 ADF 4 3 1 Pick up Roller 4 3 1 1 Removing the Pickup Roller i SENSYS MF4150 i SENSYS MF4140 1 Remove the shaft 1 with driver etc and detach the ADF cover 2 in the direction of the arrow mw x F 4 4 2 Remove the shaft 1 with driver etc and remove the pick up assembly 2 in the direction of the arrow 2 F 4 5 3 Unhook one each of the claws 1 to remove the 2 gears 2 1 2 F 4 6 A Points to Note when Attaching Match the gear 1 with the D cut surface of the pickup roller shaft 2 2 11 F 4 7 4 Remove the 2 bushings 1 5 Remove the 1 E ring 2 to remove the pick up roller shaft 3 F 4 8 6 Remove the 1 E ring 1 to remove the pickup roller 2 A Do not touch the roller with bare hands
40. Service Manual MF4100 Series canon Aug 21 2006 Application This manual has been issued by Canon Inc for qualified persons to learn technical theory installation maintenance and repair of products This manual covers all localities where the products are sold For this reason there may be information in this manual that does not apply to your locality Corrections This manual may contain technical inaccuracies or typographical errors due to improvements or changes in products When changes occur in applicable products or in the contents of this manual Canon will release technical information as the need arises In the event of major changes in the contents of this manual over a long or short period Canon will issue a new edition of this manual The following paragraph does not apply to any countries where such provisions are inconsistent with local law Trademarks The product names and company names used in this manual are the registered trademarks of the individual companies Copyright This manual is copyrighted with all rights reserved Under the copyright laws this manual may not be copied reproduced or translated into another language in whole or in part without the written consent of Canon Inc COPYRIGHT 2001 CANON INC Printed in Japan Caution Use ofthis manual should be strictly supervised to avoid disclosure of confidential information Introduction Symbols Used This documentation uses t
41. T PRINTING ON BLACK OFF E E FIX ASF WHITE SQUARE H W TEST SIGNAL TEST RELAY TEST SENSOR TEST DIAL TEST VOLUME TEST KEY TEST AGING E CIS TEST BOOK SCAN TEST COPY TEST JPN PSUDO RING ADF SCAN TEST IR SCAN TEST F 13 9 13 9 Chapter 13 13 4 2 Faculty Test 13 4 2 1 Print test pattern i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 From the FUNCTION menu select PRINT TEST PATTERN In this test the printer unit will be used to print various patterns For service work be sure to use the BLACK pattern and the SQUARE pattern Use the BLACK print pattern to meke sure that the printout is free of white lines and unevenness on the other hand use the SQUARE printout to make sure that the printout is free of image contraction elongation and soiling MEMO After completion of the print test if the printing was normal copy a document If there is any defect in the copied image there is a defect in the scan section 13 4 2 2 Sensor test i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 SENSOR TEST is selected from the H W TEST menu In this test the state of each sensor of this machine can be checked on the display For the sensor that uses the sensor arm and the microswitch the output of the sensor can be confirmed by moving them by the hand SENSOR TEST HOOK1 TEST handset status HOOK2 TEST ADF DS T
42. W29 Not used SW30 10 SW31 SW36 Not used SW37 000 SW38 SW50 Not used SW51 00 SW52 Not used SW53 Not used SW54 010 Sw55 SW64 Not used F 13 4 13 3 Chapter 13 REPORT SERVICE DATA LIST CLEAR DATA DRAM CLEAR MEMORY CLEAR PRINT COUNTER SCAN COUNTER FUNCTION PRINT TEST PATTERN CONT PRINTING ON BLACK OFF E E FIX ASF r WHITE SQUARE H W TEST r SIGNAL TEST RELAY TEST SENSOR TEST DIAL TEST VOLUME TEST KEY TEST AGING E CIS TEST BOOK SCAN TEST COPY TEST JPN PSUDO RING ADF SCAN TEST IR SCAN TEST F 13 5 13 2 Service Soft Switch Settings SSSW 13 2 1 Outline 13 2 1 1 SOFT SWITCH Explained i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Each entry setting item of SOFT SWITCH consists of 8 bitswitches Each bitswitch displayed on the screen has an assigned number as shown in the figure below Each Bit has a value either O or 1 vy hhh cA vy 0 0 0 0 0 0 0 Swo1 0 F 13 6 Shown below is what each number and data indicates in the bitswitch table Indicates the set value is 0 Indicates the set value is 1 Bit Function Indicates this is the default setting Not in Use Not in Use Original Reading Width Letter A4 Not in Use Not in Use Not in Use Not in Use Not in Use ANOaABRWND F 13 7
43. YS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 9 Bit Function 1 0 1 V 34 Maximum Baud Rate TX 1 0 2 V 34 Maximum Baud Rate TX if 0 3 V 34 Maximum Baud Rate TX 1 0 4 V 34 Maximum Baud Rate RX 1 0 3 V 34 Maximum Baud Rate RX 1 0 6 V 34 Maximum Baud Rate RX 1 0 7 Not in Use 8 Not in Use 13 2 8 2 Bit 1 to Bit 6 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Enables to select the maximum baud rate in V 34 primary channel from 2400 2800 3000 3200 3429 baud Different combinations of Bit 1 to Bit 6 lead to different baud rates as shown below In Sending T 13 10 Bitl Bit2 Bit3 0 0 0 3429 1 0 0 3200 0 1 0 3000 1 1 0 2800 0 O 1 2400 In Receiving T 13 11 Bit4 Bit5 Bit6 0 0 0 3429 1 0 0 3200 0 1 0 3000 1 1 0 2800 0 0 1 2400 13 2 9 SSSW SW39 13 2 9 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 12 Bit Function 1 0 1 Not in Use 2 Not in Use 3 Not in Use 4 Not in Use 5 Not in Use 6 Not in Use 7 V8 Procedure at Incoming Call Yes No 8 V8 Procedure at Outgoing Call Yes No 13 2 9 2 Bit 7 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Enables to choose whether or not to carry out V 8 procedure during incoming calls Change the setting to No and V 8 procedure will not be carried out and T 30 procedure will start 13 7 Chapter 13 13 2 9 3 Bit 8 Elaborated
44. a given signal is High while 0 is used to indicate Low The voltage value how ever differs from circuit to circuit In addition the asterisk as in DRMD indicates that the DRMD signal goes on when 0 In practically all cases the internal mechanisms of a microprocessor cannot be checked in the field Therefore the operations of the microprocessors used in the machines are not discussed they are explained in terms of from sensors to the input of the DC controller PCB and from the output of the DC controller PCB to the loads The descriptions in this Service Manual are subject to change without notice for product improvement or other purposes and major changes will be com municated in the form of Service Information bulletins All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant Service Information bulletins and be able to identify and isolate faults in the machine Contents Contents Chapter 1 Introduction 1 1 Produet Specifications secre een er Bea nina ein aha 1 1 1 1 1 Names f Parts EE 1 1 INEST UB PIC AAA 1 1 1 1 1 2 Section View Host Machin aa ades ee e AE 1 2 ILS Section View ADF ono e erre de e ede ve e ene poe do d de i ic e ie 1 3 1 11 4 Control panel atre he n a Pp Ce Erben hue eh Eb ia ehe Cote las Eit alba dad 1 4 IEEE EEE M 1 5 1 1 2 1 Safety o
45. adation sequence Printing resolution 600 dpi x 600 dpi Reduction for reception Fixed reduction No Automatic reduction 75 to 100 FAX TEL switching Yes Answering machine connection Yes Remote reception ID entry method ID 2 digits default is 25 Auto dialing One touch dial 7 Speed dial 100 Group dial Maximum 106 Delayed transmission No Broadcast transmission Number of Destination Maximum 123 one touch speed dial 107 ten key 16 Dual access Reservation Capacity Maximum 64 jobs Memory reception Approximately 256 sheets Canon FAX standard chart No 1 Image data backup No 1 1 4 1 Scanning Range ADF i SENSYS MF4150 1 2 i 2 left margin 3 1 leading edge of original effective scanning width 4 right marginmargin Is Te 9 F 1 10 6 trailing edge margin 7 8 9 trailing edge of original non scanning area scanning range 5 leading edge margin 1 9 Chapter 1 T 1 5 item A4 Letter Legal effective scanning width 206 2 0 2 0 mm 212 2 0 2 0 mm 212 2 0 2 0 mm left margin 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm right margin 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm leading edge margin 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm 2 0 2 0 2 0 mm trailing edge margin 2 0 2
46. al Pause key One touch dial key test When the OK button is pushed it becomes an one touch dial key test The a thorough h characters corresponding to One touch01 through 08 key are displayed The character corresponding to respectively disappears when an one touch key is pushed Check that all characters disappear after all one touch keys are pressed 13 10 Chapter 14 Service Tools Contents Contents 14 1 Service Tools TALLE a iii a cada 14 1 Chapter 14 14 1 Service Tools 14 1 1 Solvents Lubricants Table i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 14 1 No Name Purpose of Use Component Remarks 1 Alcohol Cleaning Alcohols Do not put close to fire E g Plastics Source locally Rubber Metals Grease Buildup Toner Buildup 2 Lubricating Oil Apply to the gear Special oil Molykote EM 50L Apply in between the shaft and the shaft support Special solid lubricant agent Produced by Dow Corning Corporation Lithium soap Tool number HY9 0007 3 Lubricating Oil Apply in between the pressure roller shaft and the Carbon black Molykote 41 grounding plate Graphite Produced by Dow Corning Corporation Highly refined mineral oil Tool number CK 8007 A Use a rag to clean the exterior of the machine Soak a rag in water and wring it out as completely as possible before cleaning 14 1 Aug 21 2006 canon
47. aration for Removing the Laser Scanner Unit i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the DCNT board 5 5 1 2 Removing the Laser Scanner Unit i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the shutter arm 1 2 Remove the 4 screws 2 to remove the laser scanner unit 3 2 F 5 4 5 4 Chapter 6 Image Formation Contents Contents 6 1 Oyverview Configuration a edo doi A e eid e ace e AAC E RO AN SA PrntBIOCeSS euer O MM t UEM E I 6 2 Driving and Controlling the High Voltage System 6 2 1 Generation of Transfer Charging B1 dee eg rr apte de de eec Db RE 6 3 Parts Replacement Procedure 6 3 1 Transfer Charging Roller 6 3 1 1 Removing the Transfer Charging Roller nen ea Chapter 6 6 1 Overview Configuration 6 1 1 Configuration i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The image forming system is the core part of this machine and is composed of the cartridge the transfer charging roller the fixing assembly etc When receiving the print command from the SCNT board the DCNT board activates the main motor to rotate the photosensitive drum the developing cylinder the primary charging roller the transfer charging roller and the pressure roller The surface of the photosensitive drum is evenly charged negative by the primary charging roller and the lase
48. as the wrapping jam it notifies the occurrence of the delivery stationary jam to the SCNT board Chapter 7 7 3 4 3 Residual Jam at Startup i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 If either the leading edge sensor PS801 or the paper width sensor PS802 detects a paper at the start of initial rotation CPU judges as the residual jam at startup When there is paper in inside the machine the leading edge sensor flag is pushed up with paper and paper having is judged 7 4 Chapter 7 7 4 Duplex Unit 7 4 1 Overview i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The duplexing pick up operation of this machine is performed by the drive of the main motor M1 under CPU control of the DCNT board After the machine completes the Ist print and the paper s trailing edge passes over the delivery sensor PS803 the duplexing drive solenoid SL2 is turned on and the drive of the main motor M1 is transmitted to the delivery roller and the duplexing feed roller By turning the delivery roller in reverse direction the paper is lead to the duplexing feed unit and sent to the feed roller via duplexing feed roller There is no sensor on the duplexing paper s feeding path to detect the arrival passage of paper There is no stationary function to stop and retain paper in duplexing unit Delivery roller PS803 d m e Los SL2
49. dth of original reading When Letter is selected a letter sized original will be read with the letter width 214mm 13 2 6 SSSW SW21 13 2 6 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 6 E E Function 1 0 Not in Use Not in Use Not in Use Received data in G3 mode contains 100 lines or less Print Do Not Print Not in Use Not in Use Not in Use QA Ou d wWN Not in Use 13 2 6 2 Bit 4 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 When received data in G3 mode consists 100 lines or less the data can be chosen to print or not to print If the setting is changed to Do Not Print received data with 100 or less lines will be canceled and will not be printed out 13 2 7 SSSW SW30 13 2 7 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 7 x Function 1 0 Not in Use Not in Use Not in Use Not in Use Not in Use Not in Use Duration of Pause 1 0 o0 1 O t t t2 Duration of Pause 1 0 13 6 Chapter 13 13 2 7 2 Bit 7 and 8 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Enables to set the duration of pause It is a combination of Bit 7 and Bit 8 and the duration is as listed below T 13 8 Bit7 Bit8 0 0 2 0 seconds 1 0 2 5 seconds 0 1 3 0 seconds 1 1 3 5 seconds 13 2 8 SSSW SW37 13 2 8 1 Function List i SENS
50. e 7 23 42 Wrapping E i 3 aeree erem rer eicere enti depen n On ma o Oe e tee re ne HR en rris 7 3 4 3 Residual Jam at Startup 7 4 Duplex Unit 3 55 er A ann er E o DR i aste n ie OU detis TAO rc EE TO Parts Replacement Procedure dee 7 6 POMBO Motor ns C RR 7 6 1 2 1 1 Preparation for Removing Maint Motor 26 82 eee n eee steel AER e eee Een eda 7 6 7 5 152 Remoyuig Main Motor 38 A ERR Rea a LO RR EUREN Ein 7 6 7 5 2 Separation P d e eene A RUE RR ERU anna 7 6 7 5 2 T Preparation for Remoying Separation P d 23H en rere eem epi at im t ep RH tie ceret 7 6 7 3 2 2 Removing Separation Pad decore DeC eie Pad ES 7 6 TSB Pickup ROWSE e 7 6 7 35 9 T Removirig PickupeR olletes a ARI 7 6 Chapter 7 7 1 Overview Configuration 7 1 1 Overview i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The pickup feeding system is the part to pickup and feed a paper and it is composed of the main motor solenoid and various motors In this machine a paper is picked up from either the pickup tray or the manual feed tray and it is delivered from the delivery tray A paper set in either the pickup tray or the manual feed tray is picked up with the same pickup roller Then it is fed to the photosensitive drum transfer charging roller fixing film pressure roller and face down delivery roller in that order and is delivered to t
51. e fixing film unit is high melting the grease fully prevents feed fault inside of the fixing assembly or faulty image Fixing Mode In this machine the fixing mode is determined by detecting paper size based on the time that a paper needs to go through the paper leading edge sensor the paper width sensor and the delivery paper width sensor The relationship between paper size being detected and the fixing mode is shown below From A to D indicate paper size PS802 PS804 267 4 mm Feed direction F 8 3 T 8 2 Paper length Paper width sensor Delivery paper width sensor Fixing mode PS802 PS804 A Less than 267 4 mm Detect Detect Envelop B 267 4 mm or above Detect Detect Normal 1 C 4267 4 mm or above Not detect Not detect Small size paper D Less than 267 4 mm Not detect Not detect Envelop In order to prevent temperature increase at the end of the fixing film that occurs when putting papers on one side and passing them through the machine while the paper width guide is fully opened the machine has the delivery paper width sensor The relationship between paper size when putting papers on one side and passing them through the machine and the fixing mode is shown below E and F indicate paper size 8 3 Chapter 8 PS802 PS804 A 267 4 mm Feed direction F Y F 8 4 T 8 3 Paper length Paper width sensor Delivery paper widt
52. e nennen teneret 3 2 312 1 2 Removang the Control Panel Assembly ta 2 25 22 22 282882 IRR ER ERU MR ERR PERROS 3 2 3 2 2 Book Motor u 3 2 3 2 2 1 Preparation for Removing the Flat Bed Motor ccscccsccsssescossssessessarcessssvecsseseevececsssasensnadvedecsecessecssesecsaessordsdsedensesscevensescensensensvevscssesserentens 3 2 3 2 2 2 Removing the Flat Bed Motor nensem lA diritto GON aa 3 2 3 2 3 Contact Sensor iia a da 3 3 3 23 Removing th Contact Senso id A TO 3 3 Chapter 3 3 1 Basic Constraction 3 1 1 Specifications Control Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 3 1 item function method document exposure LED document scan Book mode scan by the shift of the contact Book mode scan by the shift of the contact sensor CS ADF document stream reading by fixed contact sensor CS scanning resolution 600 dpi horizontal scanner X 600 dpi vertical scanner number of gradations 256 gradations magnification 50 to 200 horizontal image processing by SCNT board vertical change of carriage shift speed image processing by SCNT board lens rod lens array CMOS sensor number of lines 1 line number of pixels 5184 pixels as total pixels 5107 pixels as effective pixels maximum document scanning width 216 mm CS drive control drive control by Book motor M2 document size detection none 3 1 2 Major Components i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Fo
53. eading edge sensor PS801 the DCNT board judges as the delivery delay jam 7 3 3 Stationary Jams 7 3 3 1 Pickup Stationary Jam i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 If the trailing edge of paper cannot be detected after passing about 5 4 sec since the leading edge sensor PS801 detects the leading edge of paper the DCNT board judges as the pickup stationary jam 7 3 3 2 Delivery Stationary Jam i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Ifthe delivery sensor PS803 cannot detect the leading edge of paper within about 1 48 sec after the leading edge sensor PS801 detects the trailing edge of paper the DCNT board judges as the delivery stationary jam 7 3 4 Other Jams 7 3 4 1 Door Open Jam i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Ifthe leading edge sensor PS801 or the delivery sensor PS803 detects a paper when door open is detected the DCNT board judges as the door open jam 7 3 4 2 Wrapping Jam i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 CPU executes the wrapping jam detection after it judges there is no delivery delay jam present If the delivery sensor PS803 detects the trailing edge of paper within the predetermined time from after about 0 08 sec since the detection of the paper leading edge by the delivery sensor PS803 until about 1 09 sec after the detection of the paper trailing edge y the leading edge sensor PS801 CPU judges as the wrapping jam If it judges
54. ee Rn LTR Ban Ins Ai 13 9 13 4 1 2 Testimode menu crias vn rien eee EE A AR IAN vu Fu oed Ee ie Erase zu aoe 13 9 13 42 Faculty A A eee erre e ROREM me 13 10 13 42 12 Print test patterns 2 Rr 13 10 13 4 2 2 Sensor test T 13 10 18 42 SHIROV LOS AO O TS ee ban Rania nde e EE atas 13 10 Chapter 14 Service Tools PRES US A ee un een ala 14 1 14 1 1 Solvents 7 L bricants Table irrito eter ener nennen nana DE radicada nd nas e ooo eaa eva CEE dana oo Elk ae naa Tad 14 1 Contents Chapter 1 Introduction Contents Contents LT Product specications soe IS EUREN EORR Eddie nisse 1 1 1 1 1 Names 0f Parts senie NR NN 1 1 LiAl External Viewer RUBRO EI P REA REESE HERR PES EUER l TITZ Section View Host Machine siet tet EHE RERO OD III ERN EROR GG DUDEN HIE het sdubes r ENDO MEG 2 VALES View ADE zie tee ERR RR o EORR edt EI eR OD e e Det 3 1 131 4 Control panel coi nee era URSI CA met e TON 4 11253 RRA 1 5 11 2 1 Satety of the Host Machine s Laser Mecha AA A REOR s 5 1 1 2 2 CDRH Regulations ee esa nm Rma ene b amem ee ers 5 1 1 2 3 Handling of the Laser Assembly cise eR e ERR RE emen us 6 11 24 Safety ofthe Toner scite ete nir e i Mee e SRH etie tn en eeu tie err bci e e ege sosa 6 1 1 2 5 Fire Attention 1 1 2 6 Points no Note when Replacing Disposing the Lithium Batt
55. elivery paper width sensor 7 3 Detection Jams 7 3 1 Jam Detection Outline 7 3 1 1 Overview i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The machine has the following paper sensors to detect the presence absence of paper at the time of startup opening the door or feeding a paper as well as to detect whether a paper is fed normally 1 Leading edge sensor PS801 2 Paper width sensor PS802 3 Delivery sensor PS803 4 Delivery paper width sensor PS804 In terms of jam it is judged by whether a paper is at the sensor assembly at the time of the check time memorized in the CPU beforehand If the CPU judges as the occurrence of jam the printing operation is aborted and at the same time it notifies it to the SCNT board 7 3 2 Delay Jams 7 3 2 1 Pickup Delay Jam i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 In order to prevent the pickup delay jam due to the pickup failure the machine executes the retry control that performs the pickup operation up to twice In the second pickup operation if the leading edge sensor PS801 cannot detect the leading edge of paper within about 1 45 sec since the pickup solenoid SL1 turns ON the DCNT board judges as the pickup delay jam 7 3 2 2 Delivery Delay Jam i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 If the delivery sensor PS803 cannot detect the leading edge of paper after passing about 1 65 sec from the detection of the leading edge of paper with the l
56. ensional objects up to 2kg Maximum original size fixed type 216mm x 297mm ADF 216mm x 356mm Reproduction ratio 1 14 1 0 1 2 00 1 1 41 1 0 70 1 0 50 zoom 0 50 to 2 00 minimum unit 1 Reading resolution 600 x 600 dpi Printing resolution 600 x 600 dpi Warm up time 9 0 sec or less First print time 9 6 sec or less A4 LTR Print speed 1 side approx 20 ppm A4 approx 21 ppm LTR 2 side approx 10 ppm Cassette paper size LTR LGL A4 B5 AS Executive Envelope COM10 Monarch DL ISO C5 Oficio Brazil Oficio Mexico Oficio Folio Government LTR Government LGL Foolscap 76 x 127 to 216 x 356 mm Multifeeder paper size LTR LGL A4 B5 AS Executive Envelope COM10 Monarch DL ISO C5 Oficio Brazil Oficio Mexico Oficio Folio Government LTR Government LGL Foolscap 76 x 127 to 216 x 356 mm Cassette paper type plain paper 64 to 90 g m2 thick paper 105 to 128 g m2 recycled paper 64 to 80 g m2 transparency label envelope postcard Multifeeder tray paper type plain paper 64 to 90 g m2 thick paper 105 to 163 g m2 recycled paper 64 to 80 g m2 transparency label envelope postcard Cassette capacity 250 sheets 80 g m2 Chapter 1 Multifeeder tray capacity 10 sheets plain paper 80 g m2 1 sheet transparency envelope Delivery tray stack 100 sheets plain paper 80 g m2
57. er within 6 sec after sending CFR in date phase C 0014 Can t receive T 30 signal after sending FTT signal 0016 Receive DCN signal after sending PTT signal 0017 Can t receive any response from remote side after sending DIS 0018 Can t detect energy within 6 sec after sending FTT command 0019 Received DCN signal sending CFR signal 001A No energy on line over 6 sec within phase C before any corrected ECM frame 001D Can t detect flag after sending CFR signal 001E Timeout in V 17 ECM Rx phase C 0020 Can t correct frame within 6 sec at phase C 0021 File full 0022 Owing to noise interference on the line receiving side can t receive correct data within specified time no ECM 0023 Can t receive correct signal after sending CFR signal 0030 Can t receive any signal within 6 sec At phase D 0031 Received incorrect signal at phase D not EOP MPS EOM DCN PPS Q PPS Q etc 0032 Can t receive carrier within 6 sec after sending MCF or RTP RTN signal 0033 Received DCN signal at ohase D within pages not last page 0039 In non ECM mode when machine alredy received the data dosen t receive 13 1 seconds 001F Can t detect any G3 signal within 35 sec after sending DTC signal 003F Remote side TSI not define in machine one touch or speed dial directory 0040 Can t receive carrier within 6 sec after sending CTR 12 1 Chapter 12
58. ery sees ertet tenente nennen tenens 6 1 1 3 Product Specifications sse eene nette RR RR enne Ran ae aee ana innen aaa aaa nt aaa ens ana ense sense RON RAR REN RR aaa tenter tenerent nennen 1 7 1 1 3 1 Host Machine Specifications ce cn ride M e Re e meiste e el AU tree HR ODORE 7 121 3 27A DE Specifications ua Bias RUE RE de GO IR t A ND M RR NOUS USO UK 8 1 1 3 3 FA X Specification Sm eta eee dte a e a t ete mte t b eMe ito eee 8 1 1 4 Function List 1 9 1 4 1 Scamming Range ADE sissies es REGERE BEES iib 9 T 1 42 Scanning Range Copy board sees interemit EDU ep ir E OE t ANTS 1 10 1 1 4 3 Recording Range Copy 1 10 T 4 4 Recording Range Reception A ah ue een des ean b dE Sb eiie deine end 1 11 1 1 4 5 Rec rding Range Printer sio 1 11 1 1 4 6 Operation Environment of the Printer Dtiver ette e ee eR IU o ER ER IH 1 Chapter 1 1 1 Product Specifications 1 1 1 Names of Parts 1 1 1 1 External View i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Front View Body 8 ADF Automatic Document Feeder MF4150 only Document guide MF4150 only Document pick up tray MF4150 only Document delivery tray MF4150 only Control panel Delivery tray Paper tray Reading area ADF MF4150 only oa tn d wU N Copyboard 9 15 14 13 16 F 1 1 10 Delivery auxiliary tray 11 Delivery stop 1
59. f the Host Machine s Laser Mechanism c cccecceceeeeeneeeeeeeeeeeeneeeeeeaeeeseaeeeeseaaeeeceaeeesecaeeeseaeeeseeeeseceesseeeeeseneeetees 1 5 1 1 22 G DRE Regulations esa ciet ed EUM tele alin old Stee ett SNE A eae Eh SE Oe See Se othe saree east 1 5 14 2 3 Handling orthe Laser Assembly i iic ue n a ia dia 1 6 RIA Safety oL the TODO St ic teh io ccs a Sh NN sc edes e cas teet A o od re c Me Mt O DAS AS 1 6 Toe Fire Attention 2 2 O O O A O ANN 1 6 1 1 2 6 Points no Note when Replacing Disposing the Lithium Battery eterna cn nannnnnnann cnn nannnananns 1 6 1 1 3 Product Specifications cia A dc 1 7 1 43 Host Machine Specificatioris 3 2 gaia rsss ppa klei e Maia bo i S e Hee dd hin 1 7 11 32 ADF Specifications nr nr Ino ce REO v eee EP EE COEUR EC eie Lr E Toe ae ie REP exe on io eee 1 8 1 13323 FAX Specifications n ot e cr RER o e e on re t e ear e duc AR ecd 1 8 1 1 4 Fu nction ii ai ais 1 9 1 14 1Scamihg Range ADE einai A ed catt de ico A a A dead al 1 9 1 1 42 Scanning Range copyboard siisi a e dia 1 10 1 1 43 Recording Range Copy 4 2 ete eed ne ier ante to Sao Desa fime 1 10 1 4 44 Recording Range R ception tede tet ae E ce t Atc ede Pe i de dL e edt a data nue 1 11 1 1 4 5 Recording Range Printer a A ST A RERO notas 1 11 1 1 4 6 Operation Environment of the Printer Driver uu 224400444440unnnnnnnnannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnanan
60. ge margin 6 0 2 0 2 0 mm 6 0 2 0 2 0 mm 6 0 2 0 2 0 mm 6 0 2 0 2 0 mm 6 0 2 0 2 0 mm 6 0 2 0 2 0 mm trailing edge margin 1 1 4 6 Operation Environment of the Printer Driver i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Operation environment Windows 98 98SE Windows Me Windows 2000 Windows XP Computer Computer in which Windows 98 98SE Windows Me Windows 2000 or Windows XP runs properly Hardware environment IBM PC or IBM compatible PC CD ROM drive or network environment accessible to CD ROM PC equipped with USB port and installed with USB class driver T 1 10 os CPU RAM Windows 98 98SE Intel Pentium 90 MHz or more 128 MB or more Windows Me Intel Pentium 150 MHz or more 128 MB or more Windows 2000 Intel Pentium 133 MHz or more 128 MB or more Windows XP Intel Pentium ii Celeron 300 MHz or more 128 MB or more Log in as a user account to which the administrator s right is authorized Chapter 2 Basic Operation Contents Contents 2 s CODnStEUCLODB cu cce Suit re MeL cA A rM LM a LI dn ptc SA els Se ee a tee ETE 2 1 1 Eunction Configuration eena C 2 2 Basic Sequence e AE ond e I A e sa ahs fhe 2 2 1 Basic Operation Sequence Chapter 2 2 1 Construction 2 1 1 Function Configuration i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The f
61. h sensor Fixing mode No object 2 Detect Not detect Small size paper mode No object 2 Not detect Detect Small size paper mode Eight modes except envelop small size paper 2 When setting papers at the end of the paper guide and passing them through the machine it becomes the small size paper mode regardless of paper length 8 3 Protection Function 8 3 1 Protection Function i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 In order to prevent the fixing heater runaway the machine has the following 3 protection functions 1 Protection function with CPU 2 Protection function with the fixing heater safety circuit 3 Protection function with the temperature fuse The description of each function is as follow 1 Protection Function with CPU CPU always monitors voltage of the fixing heater temperature detection signal sent from the thermistor If the fixing temperature greatly exceeds the specified value CPU judges as failure of the fixing assembly and it blocks the power distribution to the fixing heater Moreover error E000 is displayed in the operation part at the same time T 8 4 Failure of fixing assembly Thermistor temperature Heater temperature detection time From the start of temperature control until 1 47 sec Less than 55 deg C Normal times 230 deg C or above 0 15 sec ina row During normal temperature control Less than 100 deg C 1 2secinarow During temperature control at
62. he delivery tray On the feed path of a paper the following 4 photointerrupters are allocated the leading edge paper width sensor PS801 PS802 delivery sensor PS803 and delivery paper width sensor PS804 and they detect either the arrival or passage of paper If a paper does not arrive or pass each sensor except the fixing paper width sensor within the predetermined time CPU on the DCNT board judges as a jam and notify the occurrence of jam to the SCNT board The diagrammatic illustration for each motor solenoid and sensor is shown below ET TE TEE TEE TE TE 1 1 MA um p y a ld A A A 5 s 2 E E E 8 amp bo 4 G e a E a o 2 2 a 5 e E gt o o o o 2 H o E o e 5 m Bm 5 3 o 3 2 m 2 5 2 dt Luv o o o v e 3 ss 8 o 5 o oo do z gt 5 el e Sa 54 S q o gt gt qo e seer A o es um o oa u own co e Ri LO gt oe gt eo L we Qu om vee RR PN oa oo i SO i Sa gt so E E a J 2 a a rm M i SCNT I 1 f I PS804 ne 1 Face down delivery roller 2 Pressure roller 3 Fixing film unit 4 Transfer charging roller 5 Photosensitive drum 6 Pickup roller 7 Separation pad 8 Manual feed tray 9 Pickup tray MI Main motor SLI Pickup
63. he following symbols to indicate special information Symbol Description PROD En Indicates an item of a non specific nature possibly classified as Note Caution or Warning Indicates an item requiring care to avoid electric shocks Indicates an item requiring care to avoid combustion fire Indicates an item prohibiting disassembly to avoid electric shocks or problems Indicates an item requiring disconnection of the power plug from the electric outlet Indicates an item intended to provide notes assisting the understanding of the topic in question Indicates an item of reference assisting the understanding of the topic in question Provides a description of a service mode Provides a description of the nature of an error indication Introduction The following rules apply throughout this Service Manual 1 Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with refer ence to the timing of operation In the diagrams NN N represents the path of mechanical drive where a signal name accompanies the symbol the arrow indicates the direction of the electric signal The expression turn on the power means flipping on the power switch closing the front door and closing the delivery unit door which results in supplying the machine with power 2 In the digital circuits l is used to indicate that the voltage level of
64. he heating pattern is deposited on the ceramic plate By heating the fixing film with the fixing heater it gives heat to passing papers The thermistor TH1 locates at the center of the fixing heater Hl and detects the temperature of the heater The temperature fuse TP1 locates at the top center of the fixing heater If the temperature of the fixing heater increases abnormally it blocks power supply to the heater by meltdown The temperature control of the fixing assembly composed of the foregoing components is executed at the fixing control circuit on the DCNT board with the instruc tion of the CPU IC902 There are the fixing heater drive circuit and the fixing heater safety circuit in the fixing control circuit 8 1 Chapter 8 1 Pressure roller 2 Fixing film Hl Fixing heater TH1 Thermistor TP1 Temperature fuse 8 2 Chapter 8 8 2 Various Control Mechanisms 8 2 1 Controlling the Temperature of the Fixing Unit 8 2 1 1 Fixing Temperature Control i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 With this control the surface temperature of the fixing heater is detected and also the drive signal of the fixing heater is controlled to maintain the target temperature of the fixing heater The temperature control of the fixing heater is executed with the following 3 modes Temperature Control at Startup The temperature control at startup is executed from the entry of print command to the DCNT board
65. he toner disappears and 10 3 1 Periodically Service Items i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 There are no periodically service items with this machine 10 4 Cleaning 10 4 1 Cleaning Items i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Responsible by Cleaning area Cleaning area T 10 2 Cleaning timing User Service Technician External covers Copyboard glass Backside of copyboard cover ADF reading area Document pickup roller Scraper Document feed roller Document delivery roller Reading white area Pickup roller Separation pad Feed roller Transfer charging roller Static eliminator Fixing inlet guide When they are smudged When the image read from the copyboard is smudged When the image read from the copyboard is smudged When the image read from the ADF has a black line in vertical direction When document pickup performance drops away When document separating performance drops away When document feeding performance drops away When document delivery performance drops away When the image read from ADF is lighter When paper pickup performance drops away When paper separating performance drops away When paper feeding performance drops away When there is smudge at the back of the paper or when there are white spots at the constant intervals of approx 46mm in the image When there are dot patterns in the image When there is smudge in the paper when there a
66. iginals set face up on the original tray one by one in order from the top The original is scanned by the contact sensor when moving through the copyboard glass and then delivered face down to the original delivery assembly BON F 4 1 Within the ADF pickup assembly is the stop 1 for the purpose of preventing the push in of original which descends ascends in conjunction with the gear 2 on the end of the pickup roller shaft F 4 2 When the originals are moving through the machine By the CW drive ofthe DF motor M3 which is transmitted to the pickup roller via the gear spring clutch and results in positive rotation of the pickup roller original pickup is performed At this point the gear on the pickup roller shaft rotates positively as well ascending the stop When the originals are moving through the equipment the stop is kept ascended At detection of original being set and after delivery of the last sheet of the original gt The gear on the pickup roller shaft rotates negatively by the CCW drive of the DF motor M3 descending the stop At the CCW drive the drive is not transmitted to the pickup roller via the spring clutch leaving the pickup roller stopped Chapter 4 4 1 2 Original Detection i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 There are two types of original detection in this equipment
67. iguration 8 1 1 Specification Control Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 8 1 Item Function Method Fixing method On demand fixing Fixing heater Flat heater Fixing temperature detection Thermistor TH1 temperature control detection of abnormality Temperature fuse TP1 detection of abnormality Fixing temperature control Temperature control at startup Temperature control at normal times Temperature control at sheet to sheet interval Protection function Temperature error detection with the thermistor Temperature rise detection with the temperature fuse 8 1 2 Overview i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The fixing unit employees the on demand fixing method and it is composed of fixing film unit in which the fixing heater thermistor and temperature fuse are incorporated and the pressure roller The pressure roller and the delivery roller are driven with the main motor M1 A paper separated from the photosensitive drum is fed to inside of the fixing assembly and the toner is fixed on a paper with the fixing film and the pressure roller A paper being fixed is detected with the delivery sensor PS803 then delivered to outside of the machine via the delivery roller 3 PS803 1 PS803 1 Pressure roller 2 Fixing film 3 Delivery roller Hl Fixing heater PS803 Delivery sensor The fixing heater is the heater ceramic heater that t
68. in the high voltage power supply circuit The transfer charging DC positive bias is output to the transfer charging roller at transferring the toner The transfer charging DC negative bias is applied to the transfer charging roller at cleaning the transfer charging roller The transfer charging bias generation circuit applies these transfer charging biases to the transfer charging roller according to each print sequence The following are the biases for print sequences Cleaning bias This is the bias for transferring the toner on the photosensitive drum to the paper at the time of print sequence The transfer charging DC positive bias is applied to the transfer charging roller Sheet to sheet bias This is the bias to prevent the residual toner on the photosensitive drum from being attracted to the transfer charging roller at between sheets during continuous printing Faint transfer charging DC positive bias is applied to the transfer charging roller Cleaning bias This is the bias to return the residual toner on the transfer charging roller to the photosensitive drum at the time of warm up or last rotation sequence The transfer charging DC negative bias is applied to the transfer charging roller The transfer charging DC positive bias is changed due to the instruction of the DCNT board To realize appropriate transfer density the DCNT board changes the voltage of the transfer charging DC positive bias for constant current control according
69. input from the DCNT board The laser driver emits laser diode according to the laser control signal and the video signal from the DCNT board The laser beam passes the collimator lens and the cylindrical lens and reaches the four surface mirror rotating at constant speed The laser beam reflected by the four surface mirror passes through the condensing lens placed in front of the four surface mirror and focuses on the photosensitive drum When the four surface mirror rotates at constant speed the laser beam on the photosensitive drum scans the photosensitive drum at constant speed When the photosensitive drum rotates at constant speed and the laser beam scans the photosensitive drum at constant speed the latent image is formed on the pho tosensitive drum MEMO E100 F When the error related to the following laser exposure occurs error code E 100 is lit BD fault If BDI signal cannot be detected in 0 1 sec after forced acceleration of the scanner motor or the specified value of BDI signal cycle cannot be detected for 2 sec or more after the scanner motor reached the specified rotation it should be judged as BD fault Scanner fault If BDI signal cannot be detected 1 5 sec after completing forced acceleration of the scanner motor extend the detection time by 120 sec If the specified value of BDI signal cycle cannot be detected during that time it should be judged as scanner fault BD error If BDI signal cannot be detected at the s
70. io 4 1 4 1 1 Basic Operation xm 4 1 4 1 2 Original Detection u ete eee b 4 2 Contents 42 Detection Jams ratita tue br nee tr data dia ds 4 2 49 1 Jan Detecta tic tinca doadas 4 2 USADA DTE 4 3 ADPIC UP Roll ii 4 3 433 1 Removing the Pick p Roll r 2 ie 2 eet ca eae evel awe er ee Mel a dit 4 3 432 DEF Mo EE Er n ee ERR Ne E E eas Re EROR E RU Re eR ER ERR TO das IRR REOR SD 4 3 4 3 2 1 Preparation for Removing the ADF Motor 2440s424400nnsnnnnnnsnnnennnnnennnnnnonnnnnonnnnnnnnnnnnnnnnnennnnnnnnnnsnnnnnnsnnnnnnnnnnnnnnnnnnnnenn 4 3 4 3 2 2 BRemoving the ADF MOIOF tic final Eee Bir ficte chevet c Dado daa dca epe cg edente ed aed ee laa 4 3 4 3 3 Separation P d 2 u ae an ann eine hr A handle rinnen 4 4 4 3 3 1 Removing the Separation Pad urteilen en re irc 4 4 Chapter 5 Laser Exposure 5 1 Overview Config ration ice nem dc 5 1 REO een Inn c 5 1 5 2 Controlling the Laser Activation Timing sse nenne nennen nennen enne nenne 5 2 5 2 sEaser ON ORF Controls enter east Meath ie its 5 2 5 3 Controlling the Intensity of Laser Light nennen nennen nennen nnns 5 2 5 3 1 Auto Photoelectric Current Control APO rara aeee rre rre 5 2 5 4 Controlling the Laser Scanner Motor eene nennen enne nennen nenn
71. itial rotation Interval between the input of print command from SCNT and turnon of the pickup solenoid To stabilize the photosensitive drum as a preparation for printing Also to clean the transfer charging roller primary high voltage output and stop of the main motor printed Also to clean the transfer charging roller PRINT print Interval between the end of initial To form an image onto the rotation and turnoff of the primary photosensitive drum based on the high voltage output video signal input from the SCNT board and to transfer the toner image onto media LSTR last rotation Interval between turnoff of the To fully deliver the final sheet On input of print command from the SCNT board host machine enters INTR immediately after LSTR However depending on the conditions shown below the host machine may not start INTR immediately media size temperature of the fixing assembly 2 1 Chapter 3 Original Exposure System Contents Contents FB a a 3 1 3 1 1 Specifications Control Function List ceeseneeseneessensnssnssnssesnnnnnnnnnnnsnnnnnnnonsensensensennennennnsnsnsnnnnsnsnnnensensensensensensensensen 3 1 3 1 2 Major S On II A 3 1 32 Parts Replacement Procedure usas eee petiere e REO TE Ue eee e eee REN RR des 3 2 32 T Scanner UN Rasen 3 2 3 2 1 1 Preparation for Removing the Control Panel Assembly sess eet nenntne tenete tenet ens
72. justment item in printing and scanning VERSION DISPLAY Displays version information on the screen SOFT SWITCH Contains basic service function setting items for facsimile such as communication trouble measure REPORT Generates service reports CLEAR DATA Formats each data FUNCTION Runs print pattern output and ADF feeding tests H W TEST Runs sensor tests and key tests 13 1 2 How to Activate Service Mode i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The following flow chart shows how to activate Service Mode additional n SERVICE MODE Functions 1 SERVICE S CHOICE F 13 1 13 1 Chapter 13 13 1 3 Service Data Menu i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 13 2 Service menu 7 SERVICE CHOISE COUNTRY REGION 4 CODE LEADING EDGE ERASE TRAILING EDGE ERASE VERTICAL EDGE ERASE TX SPEED RX SPEED r TX LEVEL r CNG LEVEL r CED LEVEL r ECM MODE CODING SCHEME F 13 2 EC HUNGARY UK 7 SOUTH AFRICA SWEDEN KOREA SWITZERLAND CHINA AUSTRIA H GERMAN DENMARK FRANCE NORWAY r SINGAPORE HOLLAND CZECH r BELGIUM SLOVENIA r AUSTRALIA H CANADA m FINLAND RUSSIA E N Z H ASIA E ITALY POLAND SPAIN EUROPE2 PORTUGAL LUXEMBOURG IRELAND r GREECE r HONG KONG TAIWAN MALAYSIA OTHERS H JAPAN U S A 4mm Oto 5 5mm 0 to 5
73. llowings are the major components for Document Exposure System The contact sensor to scan document The Book motor M2 the drive pulley the drive belt to shift the contact sensor In image scanning control the contact sensor is shifted by rotating the Book motor based on the drive signal from the DCNT board and scan the original on the copyboard glass When ADF is in use image is scanned by feeding the originals by ADF instead of shifting the contact sensor drive belt drive pulley Book motor M2 drive pulley contact sensor F 3 1 3 1 Chapter 3 3 2 Parts Replacement Procedure 3 2 1 Scanner Unit 3 2 1 1 Preparation for Removing the Control Panel Assembly i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 3 2 1 2 Removing the Control Panel Assembly i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Disconnect the 5 connectors 1 and remove the 1 screw 2 of the grounding wire F 3 2 2 Open the control panel assembly 1 to remove it upward 3 2 2 Book Motor 3 2 2 1 Preparation for Removing the Flat Bed Motor i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 5 Remove the control panel assembly 3 2 2 2 Removing the Flat Bed Motor i SENSYS MF4150 i S
74. n of the arrow 8 5 Chapter 8 1 2 F 8 11 3 Recline the 2 pressure release levers 1 and remove the 2 springs 2 4 Remove the fixing film unit 4 2 pressure release levers 1 2 pressure plates 3 A Do NOT touch the roller with bare hands 1 F 8 12 Chapter 9 External and Controls Contents Contents 9 1 Control Panel csc pos A a 9 1 PNEU EE 9 1 9 2 Power SUDDIV Zu sds notar O O OE fu 9 1 92 1 Protection PUC Ap IA 9 1 9 2 1 1 Protecthing Eunctioti 23558 eio een etes annt menn RR aes 9 9 3 Parts Replacement NA 9 2 OD BA Front COVED E cane 9 2 93 1 L Removingithe Front Covet nos x Disease HR Rp nte ER Repente 9 2 93 2 Rear COVER nl a NN 9 2 9 3 2 1 Preparation for Removing the Rear Cover oae te RC D UR Gp tere a Oe a ee eR Aes 9 2 9 3 2 2 Removing the Reat GOVela oie Rene nete ico bei dere On Hao nt e ie te teen PR UD ES 9 2 O S 3 Right COVE Rr 9 2 933l Removang the Right Covers stick el A E de IU 9 2 93 4 Left NN 9 2 9 3 4 1 Removing the Teft Cover bara 9 2 93S Upper COVER aan A AAA Aa 9 3 9 3 5 1 Preparati n for Removing the Upper COVE AAA Pete te e ees 9 3 9 3 3 2 Removing the UpperEover mita iia EA E R itae TUER ERE 9 3 93 6 Caida ed ee 9 3 9 3 6 1 Preparation for Removing th Cartridge Cover ceo oe ee ee et E Oe eae aee a D Res 9 3 9 3
75. n t detect control channel signal after received RCP frame within 6 sec 005F Can t detect silence after sending JM signal for polling TX function 0060 There are no any bullietin files to be polled in V 34 0061 Machine cannot detect V 21 or V 8 signal with 35 sec 0062 Modem disconnect in phase D after our side sending out flags sequence in control channel 0063 Can t receive any flag sequence in control channel within 25 sec in phase D 0064 Can t detect any control channel signal in phase D within 60 sec even through energy still on the line 0065 Can t detect any control channel signal within 60 sec after detect sillence in phase D 0066 Can t receive T 30 signal or carrier after sending CFR in V 34 0069 Capability no match paper size after received is DCS signal 0070 User press stop key within receiving 0071 Memory full within receiving 0080 Can t detect any G3 signal within 35 sec specified by ITU T in phase B 0081 Received DTC signal in transmission phase 0082 Transmitting unit receives a signal other than DIS or DTC And DCN in phase B 0083 Detected FSK signal but Can t receive any signal within 35 sec 0084 Detect DCN signal in phase B 0085 Transmitting unit sending DCS 3 times consecutively but each time responds with DIS DTC 0086 Detected responds signal other than DTC DIS FTT DCN or CFR after sending DCS 0087 Training attempt has failed because speed unit can t adjust to low lower speed 0088 Received DCN signal after sending out DC
76. nel Unit 9 3 7 1 Removing the Control Panel Unit 9 3 8 SENT Board reete le e eere dede Heise rs 9 3 8 1 Preparation for Removing the SCNT Board 440us244400nssnnnnnnnnnonnnnnnnnnnnnnonnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnannnnnannnnnn 9 4 Contents 938 2 Removing the SCNT Board ii Rh 9 4 SETS Brei agio Tre RI aa A os 9 4 9 3 9 1 Preparation for Removing the DONT Board sse nennen nnns nennen sinn nns set enn sen rnns sen ret sin nns nsn res sns n rennen 9 4 9 3 0 2 Removing the DONT Board erc edad Ia tbe d be i Eod PEE gie eb d debes tee te 9 4 93 JONC Y a 9 6 9 3 10 1 Preparation for Removing the NCU Board 244s44440snnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnonnnnnnnnnnnnennnnnnnnnnnnnnnnnsnnnnnnsnnnnnnnnnnnn 9 6 9 3102 Removing the NCU Board dt pectet a eee ete c PH hard Tuae er CORSO PRU Ada ERE REC RT SEARA TRT 9 6 9 3 11Power Supply PCB e 9 6 9 3 11 1 Preparation for Removing the Power Supply Board 2244422400422n00nnsnnnnnnsnnnonnnnnnonnnnnnannnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 9 6 93 112 Removing the Power Supply Bod Linea b HE a ee ae a A a ee ee ee 9 6 9 3 12 High Voitage Power Supply POB scott 9 6 9 3 12 1 Preparation for Removing the High Voltage Power Supply Board 4444444004424n0nnnnnnonnnnnonnnnnnnnnnnnnnnnnnnnnnnnnn nn rennen 9
77. ng at Book reading BOOK SUB REGIST Item to enable adjusting the reading start position of vertical scanning at Book reading ADF MAIN REGIST Item to enable adjusting reading start position of horizontal scanning at ADF reading T 11 2 Setting value 30 3 0 mm 29 2 9 mm 71 Setting value Contents 2 0 2 mm 1 0 1 mm 0 1 0 1 mm 2 0 2 mm 29 2 9 mm 30 3 0 mm ADF SUB REGIST DES Item to enable adjusting reading start position of vertical scanning at ADF reading T 11 3 Setting value Contents 35 3 5 mm 34 3 4 mm 2 0 2 mm 0 1 mm 0 1 40 1 mm 2 40 2 mm 34 43 4 mm 35 43 5 mm ADF SUB REGIST COPY Item to enable adjusting reading end position of vertical scanning at making copy ADF reading ADF SUB REGIST SFINE ADF SUB REGIST FINE ADF SUB REGIST STD Item to enable adjusting reading end position of vertical scanning at FAX transmission amp reception ADF reading T 11 4 Setting value Contents 50 5 0 mm 49 4 9 mm 2 0 2 mm 0 1 mm 0 101 1 40 1 mm 102 2 0 2 mm 149 49 4 9 mm 150 50 5 0 mm ADF SUB ZOOM Item to perform reduction of vertical scanning direction only at ADF reading T 11 5 Setting value Contents 98 0 98 4 98 8 99 2 99 6 100 0 100 4 100 8 101 2 101 6 102 0
78. nnnanannnnnnn 1 12 Chapter 2 Basic Operation 2A GONMSWUCK OM an A 2 1 2 1 Function Conflg ratlOn is opto SERA Aga eia dde ies 2 1 2 2 BASIC SEQUENCE ica de iret ice door e dd id ado el 2 1 2 2 1 Basic Operation Sequere pecie means dee ee R eR gode E E REX dee beit Dco En a 2 1 Chapter 3 Original Exposure System 3 LiBasic ConstEactlOn c m s t ien dirt DEM imei a usi 3 1 3 1 1 Specifications Control Function List erre enne nnne enne arenas arena rennen 3 1 3 1 2 Major Components iine tec ede A Rede tere eee ce eed ue Eee date ue ue Edo e eee IR ence iene 3 1 32 Parts Replacement A 3 2 32 1 Scanner Unit ide Ute esse toda 3 2 3 2 1 1 Preparation for Removing the Control Panel Assembly 224004422400nnsnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 3 2 3 2 1 2 Removing the Control Panel Assembly 220u0424004442400nnnnannnannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnsnnnnnnnnnnnnanannnnnnnnnnn 3 22 BOOK Motor M 3 2 2 1 Preparation for Removing the Flat Bed Motor 3 2 2 2 Removing the Flat Bed Motor 3 2 3 Contact Serisor nt Leet cana eb ede iae Re REP UE Pee que 3 2 3 Removing the Contact SENSOR area ie erbe th ire iere ta das da ata dee elei teh e eoe ree e or t eni o Er tod Chapter 4 Original Feeding System MBECiMele r
79. nnonnnnnonnnnnnonnnnnnnnnnnnnnnnnnnnnnsnnnnnnsnnnnnnnnnnnnnnnnnnsansnnnnnnnnnnn Chapter 9 External and Controls 9 1 Control Panel EE PSOE 9 2 Power Supply t edite e t e B eR e ete D LO ee a PA E tete ERAN C dto eite aM FUNGUO E 92 14 Protecting Eutiction isis he rh Ras a deed pe E dae US LA de bo Heec entis Da Reihe 9 3 Parts Replacement Procedure 9 3 1 Front COVE cc 9 31 1 Removitrig the Front Cover c t cet eam de e aia 9 3 2 RN IMEEM E 9 3 2 1 Preparation for Removing the Rear Cover eene RRE RRE RR RR ide rens ennt seen nnns nennen 9 2 9 3 2 2 Removing the Rear Cover 9 3 3 Mme C een 9 3 3 1 Removing the Right Cover 9 3 4 Left COVER suas ti Bil 9 3 4 1 Removing the Lestat 9 3 Uppen GOVEE sis sesta vee AREE Eu iia terii diee 9 3 5 1 Preparation for Removing the Upper Cover recria nareaa canecas RRA nana RR RR RR RR ranma cansa acena tnn s rni 9 3 9 3 5 2 Removing the Upper Cover ara dd 9 3 PERGIT xen ee Allee ebene 9 3 9 3 6 1 Preparation for Removing the Cartridge COVEM cccccceceeeeeeeeeneeeceeeeeeeeaeeeeceaaeeecaaeeeesaeeeseaaeeeseaeeeseeaeeeseeeeseeaeesseeeesseneeeeee 9 3 9 3 62 Removitig the Cartridge COVER 15r Hee e ALL d S ELE ELE M Ho b d re eae 9 3 7 Operation Pa
80. ocedure 8 4 1 Fixing Unit 8 4 1 1 Preparation for Removing Fixing Assembly i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 5 Remove the control panel 6 Remove the cartridge cover 7 Remove the upper cover 8 4 1 2 Removing Fixing Assembly i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Unhook the 2 claws 1 and remove the fixing guide 2 F 8 5 2 Disconnect the 5 connectors 1 on the left side and remove the cable 2 from the cable guide 2 11 F 8 6 3 Discomnect the connector 1 and remove the cable white 2 from the cable guide F 8 7 4 Unhook the 3 claws 1 and remove the delivery sensor 2 1 2 1 F 8 8 5 Remove the 3 screws 1 and remove the fixing assembly 2 F 8 9 8 4 2 Fixing Film Unit 8 4 2 1 Preparation for Removing Fixing Film Unit i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 5 Remove the control panel 6 Remove the cartridge cover 7 Remove the fixing assembly 8 4 2 2 Removing Fixing Film Unit i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Free the cable 1 from the cable guide 2 F 8 10 2 Remove the 2 screws 1 and detach the fixing cover 2 by opening it in the directio
81. onse procedure after sending EOR_NULL 00F1 At phasa D transmitting units out EOR MPS 3 times consecutively but receive no answer 00F2 Received incorrect response after sending EOR MPS 00F3 Received ERR signal after sending EOR MPS 00F4 Can t receive any response in RR response procedure after sending EOR MPS 00F5 At phasa D transmitting units out EOR EOP 3 times consecutively but receive no answer 00F6 Received incorrect response after sending EOR EOP 00F7 After Received ERR our side can t received response after sending EOR EOP command OOFC Can t receive any response after sending CTC 00FD Can t speed down to lower speed OOFE Memory full for transmission OOFF REDAIL ALL FAIL 12 3 Chapter 13 Service Mode Contents Contents 13 CUMIN Gr E S 13 1 13 141 Setting Service Data O den dectessecincitesteatestcetcetces der es Sea TRAS asd geo 13 1 13 1 2 How to Activate Service Mode ecessscsscsscssessessesessesseeseeseescescesesseeseceecuecsecsaesaesaesaecaecsecaecaecaaeaaeaaessecsecsecaeesecseeseeseeseeneeseees 13 1 13 1 3 Seryice Data M eV 23T aa on shades ai 13 2 132 Service Soft Switch Settings SSSW ensce nte sue pe RU VG UE RUE IS HR 13 4 ESA 2 13 4 13 2 1 1 SOFT SWITCH Explained 2 2 48 RER CIR EU Re IEA DURE RO IE RITTER TORRENS CERE RR 13 4 1322 SSSW SW02 EAN 13 5 13 2 2 1 Function List ra nn aD a ADO DN IO USAS ATO CARECA ad ANTE Ena SEO Q
82. or Major cause detection Remedy code E198 Flash ROM write error Turn the power OFF and then back ON Replace the SCNT board E674 Modem error Turn the power OFF and then back ON Replace the SCNT board Scanner error code T 12 2 Frror Major cause detection Remedy code E225 CIS lamp has a fault Turn the power OFF and then back ON Replase the CIS unit Printer error code T 12 3 Error Major cause detection Remedy code E000 The thermistor has an open circuit or a short circuit Check the connector of the fixing film unit The heater has an open circuit The thermal fuse has blown Replace the fixing film unit Replace the High voltage power supply board The High voltage power supply board has a fault Replace the DCNT board The DCNT board has a fault E100 The scanner assembly has a fault Check the connector of the laser scanner assembly Replace the laser scanner assembly Replace the HVT unit Replace the DCNT board Communication error code T 12 4 Error Code Description 0001 Nothing G3 signal received within 35 sec 0003 Received DIS after sending DIS signal 0004 Received DCN after sending DTC signal 0009 Can t receive any signal within 35 sec in manual polling mode 0010 Received DCN signal after sending DTC signal in Polling Rx 0011 Can t receive any correct response after sending DTC signal 0012 Remote side Password not match in Polling Rx our side no any file to be polling 0013 Can t receive carri
83. ot in Use o sa vr WN Alarm at the Completion of Transmission ON OFF 13 2 3 2 Bit 8 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 An alarm can be set to go off when the transmission has been completed without a problem Change the setting to ON in order to activate this alarm 13 2 4 SSSW SW10 13 2 4 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 4 Function 1 0 Alarm at Termination due to Error ON OFF E Page Timer in Manual Sending 8 minutes No Limit Not in Use Not in Use Not in Use Not in Use Not in Use ont nan fF YN Not in Use 13 5 Chapter 13 13 2 4 2 Bit 1 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 An alarm goes off when the transmission has been terminated due to some error Change the setting to OFF in order to make this alarm inactive 13 2 4 3 Bit 2 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Enables to select a page timer used during manual sending 13 2 5 SSSW SW16 13 2 5 1 Function List i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 T 13 5 Ed E Function 1 0 Not in Use Not in Use Original Reading Width Letter A4 Not in Use Not in Use Not in Use Not in Use o 1 O t BwWN Not in Use 13 2 5 2 Bit 3 Elaborated i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Enables to select the wi
84. pecified cycle during BDI signal output it should be judged as BD error If the case of the following conditions it should not be judged as BD error In the case that door open is detected in 0 2 sec after BD error was detected The laser scanner has the components unadjustable in the field Never disassemble the laser scanner unit Chapter 5 5 2 Controlling the Laser Activation Timing 5 2 1 Laser ON OFF Control i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 This is the control where the laser driver turns on off the laser diode LD based on the laser control signal sent from the DCNT board The following is the circuit diagram for laser control SCNT board DCNT board Laser driver circuit J902 2 J931 8 BD sensor so sl y La j 10202 PD LD CPU Photo diode Any Laser diode IBD j991 6 Laser driver IC i i 5 CNT1 5 gt Comparator C803 E vo NDO s The DCNT board sends the video signal VDO VDO for image formation and the laser control signal CNTO CNT1 for switching the laser operation mode to the logic circuit in the laser driver IC The laser driver IC performs laser control based on the combination of CNTO and CNTI signals The following chart shows the combination of the laser control signals
85. r 1 A Be sure to put the copyboard glass cover that you detached onto the mount etc so as not to damage the cable 2 Remove the 4 screws 3 and detach the copyboard glass cover 4 3 Remove the copyboard glass cover 5 A Be sure not to get the bottom surface of the scanner glass soiled 1 F 3 14 7 Turn the contact sensor 1 in the direction shown by the arrow remove the 2 shafts 2 and then remove the contact sensor 1 Chapter 3 3 4 F 3 15 Chapter 4 Original Feeding System Contents Contents 4 1 Basic Operation e ae eddie le e cabo O de e LO 4 1 4 1 1 Basic Operation 4 1 4 12 Ori gitial Dd as E 4 2 AD Detection Jams eb AA RE EI 4 2 1 Jam Detection A331 Picks p Rollo ui irte dtt eet le d e gen bebe eb ede ldda ca 4 3 1 1 Removing the Pickup Roller 4 32 ADE MOLE A A eed ee ee 4 3 2 1 Preparation for Removing the ADF Motor 4 3 2 2 Removing the ADF Motor 4 3 3 Separation Pad irpini e diee poe eee d e m ele e eee ele eben acid 4 3 3 1 Removing the Separation Pad Chapter 4 4 1 Basic Operation 4 1 1 Basic Operation i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The Auto Document Feeder ADF mounted onto this host machine is dedicated to stream reading 1 motor DF motor M3 is engaged in pickup feeding delivery At the start of copy fax scan the DF motor M3 is driven by the drive command from the SCNT to pickup feed the or
86. r beam converted with the video signal VDO VDO is reflected to the surface of the photosensitive drum to form the latent image by the laser diode The latent image formed on the photosensitive drum is turned visible with the toner on the developing cylinder and is transferred on the paper by the transfer charg ing roller The transferred toner turns into the permanent image on the paper when the heat and pressure are applied there at the fixing assembly The cleaner blade removes the residual toner on the surface of the photosensitive drum whose potential is made even by the primary charging roller to be ready for the formation of the next latent image Fixing film area Oy blade 2N Primary charging roller Laser P scanner block D 7 Photosensitive drum N Transfer charging roller V i Cartridge Developing cylinder Video signal VDO VDO DCNT board Print command SCNT board F 6 1 6 1 2 Print Process i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The print process shows the basic operation process for image formation by the printer The print process of this machine has the main 5 blocks and 7 steps The toner image is formed on papers by following the steps of each block The following is the outline of the blocks and steps of the print process Drum cleaning block Electrostatic latent image formation block Seed Fixing block
87. re irregular black lines in vertical direction when there is paper jam when there are wrinkles in the paper A Make sure to turn off the power and disconnect the power supply plug upon cleaning It may cause fire electric shock if failing turning off the power 10 4 2 Cleaning Method External Covers i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Wring of the cloth moistened with water or mild detergent and wipe off the smudges In the case of using mild detergent make sure to wipe off the detergent with the cloth moistened with water afterward Once the smudge is removed dry with the soft dry cloth 10 1 Chapter 10 10 4 3 Cleaning Method Reader Unit i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 F 10 1 1 Document pickup roller Open the ADF and wipe off the smudge with the soft dry cloth 2 Document feed roller Open the ADF and wipe off the smudge with the soft dry cloth 3 Scraper Open the ADF and wipe off the smudge with the soft dry cloth 4 Document delivery roller Wipe off the smudge with the soft dry cloth 5 Backside of copyboard cover Open the copyboard cover and wipe off the smudge with the soft dry cloth 6 Copyboard glass Open the copyboard cover and wipe off the smudge with the soft dry cloth 7 Backside of copyboard cover Open the copyboard cover and wipe off the smudge with the soft dry cloth 10 2 Chapter 11 Measurement and Adjustments
88. rolled by the SCNT board SCNT board Operation panel Key SW ASIC oa LED LCD F 9 1 9 2 Power Supply 9 2 1 Protection Function 9 2 1 1 Protecting Function i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 In the case of troubles with power supply PCB such as short circuit to loads and resulted in occurring overcurrent or over overvoltage there is a protecting function for overcurrent overvoltage to automatically shut the output voltage to avoid fault of power supply PCB In the case that the protecting function for overcurrent overvoltage is activated it recovers by turning off the main power switch to handle the load trouble and then turning on the main switch again Also there are 2 pc of fuses in PCB If there is overcurrent in AC line fuse is blown out and power distribution is shutdown Chapter 9 9 3 Parts Replacement Procedure 9 3 1 Front Cover 9 3 1 1 Removing the Front Cover i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Open the paper tray 1 2 Pull out the paper cover 2 and close the paper tray 1 1 F 9 2 3 Open the control panel 1 4 Open the cartridge cover 2 5 Remove the front cover 5 2 screws 3 2 claws 4 9 3 2 Rear Cover 9 3 2 1 Preparation for Removing the Rear Cover i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 9
89. rts Each combination of Bit 6 and Bit7 as shown below determines the type T 13 16 Bit6 Bit7 0 0 YYYY MM DD 1 0 MM DD YYYY 0 1 DD MM YYYY 1 1 Not in Use 13 8 Chapter 13 13 3 Report Output REPORT 13 3 1 Service data list i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 SERVICE DATA LIST NAME VEGA TEL 1234567 DATE 04 05 2005 11 55 COUNTRY REGION CODE OTHERS SOFT SWITCH SW01 SW16 00 20 80 00 C0 00 05 20 00 21 00 8E 12 02 AD 00 SW17 SW32 00 82 5A 60 20 15 48 02 04 22 00 A7 OF 59 2A 00 SW33 SW48 00 00 AO 8A 00 01 01 00 00 01 95 95 00 CA 00 A4 SW49 SW64 11 00 00 CI CI CO 00 00 00 00 00 00 OF 00 00 00 ROM ID 06 14 2005 FV025 Al F 13 8 13 4 Test Mode TEST 13 4 1 Overview 13 4 1 1 Outline of test mode i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The static test mode can be operated according to the menu item displayed on the display Print test The test pattern is printed in the print area H W TEST The function of the sensor and the operation panel can test 13 4 1 2 Test mode menu i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 To operate the test mode 1 Push the additional functions key and key to enter SERVICE MODE 2 Select FUNCTION or H W TEST by the cursor button and push the OK button Stoppbotaning is pushed when coming off the test mode FUNCTION PRINT TEST PATTERN CON
90. sheet to sheet interval during cleaning mode Less than 55 deg C 1 2 sec in a row After the thermistor temperature exceeds 50 deg C Less than 20 deg C 0 3 sec in a row From the start of power distribution to the fixing heater until 23 sec Less than 100 deg C While a paper is nipped in the fixing assembly Less than 210 deg C 30 sec ina row Less than 145 deg C 30 sec in a row 2 Protection function with the fixing heater safety circuit The circuit always monitors voltage of the fixing heater temperature detection signal sent from the thermistor If the fixing temperature greatly exceeds the specified value it blocks the power distribution to the fixing heater regardless of the instruction from CPU Ifthe temperature of the fixing heater abnormally increases and the voltage of the fixing heater temperature detection signal sent from the thermistor becomes less than about 0 57V equivalent of 265 deg C the output of the comparator becomes L and the transistor turns OFF As a result of that the relay is turned OFF to block the power distribution to the fixing heater regardless the relay drive signal sent from the CPU 3 Protection function with the temperature fuse If the temperature of the fixing heater abnormally increases and the temperature of the temperature fuse exceeds about 230 deg C the temperature fuse meltdown to block the power distribution to the fixing heater 8 4 Chapter 8 8 4 Parts Replacement Pr
91. solenoid PS801 Leading edge sensor PS802 Paper width sensor PS803 Delivery sensor PS804 Delivery paper width sensor Chapter 7 7 2 Other Control 7 2 1 Overview i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 Pickup Feed Operation The pickup feed assembly is the mechanism to pickup and feed paper one at a time from the pickup tray or the manual feed tray The pickup feed operation of the machine is explained below 1 Right after the DCONT board receives a print command from the SCNT board it rotates the main motor M1 By doing so other rollers except the pickup roller start to rotate 2 When it becomes initial rotation ready state the pickup solenoid SL1 turns ON for about 0 2 sec As a result of that the rotation of the main motor is transferred and the pickup roller starts to rotate Initial Rotation Ready It indicates the following state the main motor drives and after a certain period of time the temperature of the fixing assembly reaches to the specified value and the scanner motor reaches to the specified number of rotation 3 The pickup cam rotates along with the rotation of the pickup roller and by following the shape of the pickup cam the lifting plate is pushed up with the force of the spring A paper pushed up with the lifting plate is picked up by the rotation of the pickup roller and fed to inside of the machine 1 After a certain period of time that the leading edge sensor PS801 de
92. tects the leading edge of picked up paper the DCNT board transmits the laser beam detection signal BD to the SCNT board 5 Based on the BD signal the SCNT board transmits the video signal to the laser scanner assembly and an image is formed on the photosensitive drum Because of that it is controlled to match the leading edges of an image and a paper 6 A paper is delivered to the delivery tray with the rotation of the photosensitive drum pressure roller and face down delivery roller 1 1 1 cte ge Ue Uem g A A A S E S q S E o tb c ob E o 7 a q q o c o q e E E o 6 c E gt E lt o o S gt n x o c o q 5 m a 6 o o o EO o o c o z m o gt iH o o o o o on o A c o os m o 5 s o do E oN Oo Ez o S T gt on on o o o gt gt a a2 2 a a 2 Cz we o es o oH on e E So A gt u 20 lt a om os Za va Da E SS oN bb S Sz E q o ov oo oS E a a ao a a a Face down delivery roller Pressure roller Fixing film unit 1 2 3 4 Transfer charging roller 5 Photosensitive drum 6 Pickup roller 7 Separation pad 8 Manual feed tray 9 Pickup tray M1 Main motor SLI Pickup solenoid 7 2 Chapter 7 PS801 Leading edge sensor PS802 Paper width sensor PS803 Delivery sensor PS804 D
93. tet ne e UN in Oden eite eee 5 1 NETT MILLE 5 1 5 2 Controlling the Laser Activation Timing esses nennen eene eene nennen nennen nennen 5 2 5 2 1 Laser ON OFF Control 5 3 Controlling the Intensity of Laser Light 5 3 1 Auto Photoelectric Current Control APC eese eene enn ennenntnntnnt nette aaa trennt enne nennen ens ana enters en sen een nennen 5 2 5 4 Controlling the Laser Scanner Motor SAT OVERVIEW M H 5 4 2 Scanner Motor Speed Control 5 4 3 Detection of Fault of the Scanner Motor sssesssssesseeeeeeee eene teneret eene tenete inneren ene nn etr ene tente entente inneren tnn 5 3 5 5 Parts Replacement Procedures poirio e D REINO ER Eis eher 5 4 3 9 1 Easet Scatiner Units sa ic cet eR dada 5 4 5 5 1 1 Preparation for Removing the Laser Scanner Unit asas toit a ea ERE e Peste n e Ue ae M IR RE d even edens 5 4 54122 Removing the Laser Scanner Unit e arames eee petet Re RR NOR HERR E EUR REIHE REED ERE eae navn arene beeen 5 4 Chapter 5 5 1 Overview Configuration 5 1 1 Overview i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Laser driver PCB 5 Scanner motor 2 BD sensor 6 Four surface mirror 3 Photosensitive drum 7 Cylindrical lens 4 4 Condensing lens The laser scanner assembly is composed of the laser driver and the scanner motor etc and controlled by the signal
94. the SCNT board 3 9 connectors 1 4 screws 2 F 9 16 9 3 9 DCNT Board 9 3 9 1 Preparation for Removing the DCNT Board i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 9 3 9 2 Removing the DCNT Board i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the 2 guides 1 in the direction of the arrow F 9 17 2 Unhook the claw 1 and remove the cable guide 2 in the direction of the arrow Chapter 9 F 9 18 3 Remove the 4 screws 1 and detach the scanner cover front 2 and the scanner cover rear 3 F 9 21 2 3 7 Disconnect the connector 1 and free the flat cable 3 from the cable guide 2 1 F 9 19 F 9 22 A Points to Note When Attaching Make sure to insert the shutter arm 4 through the hole 5 of the scanner A Points to Note When Attaching cover rear Make sure to put the flat cable 3 through the hole 4 4 Disconnect the 2 connectors 1 located at the left side and put them inside the left side plate through the holes 2 8 Remove the 2 screws 1 F 9 23 9 Disconnect the connector 1 put the cable 2 through the cable clamp 3 and remove the DCNT board 4 F 9 20 5 Disconnect the 6 connectors 1 and free the cable 2 through the hole of PCB 6 Free the cable 3 from the cable clamp 4 F 9 24 9 5 Chapter 9
95. the pickup roller 2 A Do not touch the roller with bare hands Chapter 8 Fixing System Contents Contents 8 1 Overview C nfiguration e ea do d pei ete tes a A 8 1 8 1 1 Specification Control Function List esses enne enne non non aee netten netten aan ente entente aee aaa aaa na ens tnt arrancan ara sensere 8 1 SO very leer O M iver da RR SE SEN 8 1 8 2 Various Control Mechanisms oie e ae ee daa 8 3 8 2 1 Controlling the Temperature of the Fixing Unit uueeesesesnesesnesensenenensenensennenensnnnenennenensennenennenenene nennen trennen netn inneren eene 8 3 8 2 1 Fixing Temperature Control e o cea te c aa 8 3 8 3 Protection Function ais 8 4 8 3 Protection FUNCION a cete RR EHE E nein i nien ee tete ce oues 8 4 8 4 Parts Replacement Procedure 8 5 SAD Fixing A Rn RER ran don dou AURORA aa dia 8 5 8 4 1 1 Preparation for Removing Fixing Assembly c c ccccccsscsscecscsssdsesssesecsenedsossvacesdeseverneetsusetevadsedacssaerdvecsessevaeseersaadaduacsestceseaedeentetestevebecssassaversdes 8 5 8 4 1 2 Removing Fixing ASsetbly tette tte nt RR EURO EUER inca EXER EPOR RSEN UE E tree OBERE CONS OREL EUER RUSSE EEEa M HERE 8 5 8 4 2 Prxing Film Unit a cher hee e E dt etc d e be p e De td ede rete eed ber dd pete 8 5 8 4 2 1 Preparationfor Removing Fixing FilimUnit d ee et e Ue RARE Ee ERR ie RR es 8 5 84 2 2 Removing Fixing Film Unit iia 8 5 Chapter 8 8 1 Overview Conf
96. tin at in Ira AA a Soa Adv dun Ab 13 6 13 2 62 Bit 4 ENDE A A E A EA ede hie eae TEC 13 6 13 22 58 S9W SWO30 55 ea ERINNERN 13 6 13 274 function Lists E IS AAA ERHEBEN a a 13 6 13272 Bit 7 and 8 Elaborated iii Era A A ait A UE ai 13 7 IS DB SSOWESWI Faria A AAN AA ca eL tnb cre oe E 13 7 13 2 8 1 Function List we 13 7 13 2 8 2 Bit 1 to Bit 6 Elaborated e 13 29 SSSW SW 39 nta 13 7 13 2 9 1 Function Eist una A A A A doe SNS ca eve ans idee ta a a adm 13 7 132 92 Bit 7 Elaborated sas secretas AA A Sao b A o T ee dete a ro ets utes 13 7 13 2 9 3 Bit S Elaborated ii Hann furada A dett chante tee tke A Re e and des E 13 8 132 105 SS WeS WO En 13 8 132 101 F ncti niList accesso chee TC 13 8 13 2 10 2 Bit 3 and 4 Elaborated srs ater sao er nn AAA AA nests baa e Soh ex e Eve A Agena TAS 13 8 1322 DR TS ASA Ns onere PANO Coh erae C eret etie fr REAR RIR eta te ten debe RAND CEP PR REDE SRD RR NA NR 13 8 13 21 1 T F nelionEist A cre rr a A RS OO ARE ORDER AE DRE Ee vo Sele ned PAR RREO ET DONT aan ea 13 8 13 2 11 2 Bit 6 and 7 Elaboralted 5 5 cia co iicet eere eese e die A d hav eee ve cath vna a dal on CEN rada 13 8 Pa Repot Output REPOR totalidad aq eripe Lavigne ta Diu 13 9 13 3 Service data liSt ssa seems ale x tmr e eaae ttai attis 13 9 114 Test Mode TEST scuta arcas doe eadem ttu A edie do iind a 13 9 Io MONUI 0 5 Srs M 13 9 13 4 1 1 Outline OF test mode acne
97. to the transfer current feedback signal TRCRNT sent from the transfer charging bias generation circuit 6 2 Chapter 6 6 3 Parts Replacement Procedure 6 3 1 Transfer Charging Roller 6 3 1 1 Removing the Transfer Charging Roller i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Open the control panel assembly 1 2 Open the cartridge cover 2 F 6 3 3 Unhook the 2 claws 1 to remove the transfer charging roller 2 with the transfer guide 3 in the direction of the arrow Do not touch the roller with bare hands A Points to Note when Attaching Insert the spring 1 into the boss 2 of the bushing 4 Remove the transfer charging roller 2 from the transfer guide 1 F 6 6 6 3 Chapter 7 Pickup and Feed System Contents Contents T 1 Overyiew Configuration 3 0 nenne a attigi e in FL Overview eret A i FLO ME Control creen ront a ERE CERO CIVIC EN E T3 Detection Ja E 7 3 1 Jam Detection Outline gera EO ul AE E E E a 1 3 2 Delay ams RON ERAS SIA O RE T 1322 Delivery Delay A D RE m tee RD eo E N33 Stationary Jains RE heisse 7 3 3 L Pickup Stationary Jaime e ea AA AAA Gated te e d 132 2 DeliyeryStationary Jam once ee Sn sa RR RETRO tette eet n NO HERO I EBA Other Jams 4 2 ea bene opui Cien al d tdm eaae iteemte p apetito e 7 34 T Door Open Ja ec Na cm peo C GR IR d E eR e e e ee
98. ual feeder tray LEFT DUPLEX CAS Item to enable adjusting recording start position of horizontal scanning when making duplex prints from the pickup tray E k MAIN Regist al ES 0 D D 2 Lm F 11 3 T 11 6 Setting value Contents 30 3 0 mm 29 2 9 mm 2 0 2 mm 1 0 1 mm 0 1 0 1 mm 2 0 2 mm 29 2 9 mm 30 3 0 mm Chapter 12 Error Code Contents Contents 12 1 Error Code 12 1 1 Error Code 12 1 2 Error Code ce RP RT 12 1 Chapter 12 12 1 Error Code 12 1 1 Error Code Outline i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 An error code is used to indicate a fault in a machine and is indicated in the machine s LCD showing the nature symptoms of the fault Using the error code the service man can readily find out how to correct the fault by simply referring to the service manual An error code may be either of the following two types Service Error Codes If a fault calls for a service man for correction it is indicated as a service man error code in the form of SYSTEM ERROR E number 12 1 2 Error Code i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 System error code T 12 1 Err
99. unctions of this host machine are mainly composed of the 7 blocks System Control System Scanning Control System Printer Control System Laser Scanner System Image Formation System Fixing System Pickup Feeding System Below is the block diagram System Control System Printer Control System 2 2 Basic Sequence Scanning Control System Laser Scanner System Image Formation System Fixing System Pickup Feeding System F 2 1 2 2 1 Basic Operation Sequence i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 The operations of this host machine are controlled by CPUs of the SCNT board within the Reader Controller System and the DCNT board within the Engine Control System The table below shows the purpose of each interval and the outline of the operations of reader unit and the engine from turnon of the power supply to stop of each motor after printing T 2 1 interval name definition of interval purpose remarks WAIT wait Interval between turnon of the power supply and the end of the initial drive To clear the drum surface potential and to execute the cleaning of transfer charging roller Presence absence of cartridge is detected during this interval STBY standby Interval between the end of WAIT or LSTR and input of print command from SCNT board or interval between the end of LSTR and turnoff of power supply To make the host machine ready for printing INTR in
100. until the temperature of the fixing heater reaches the fixing target temperature The fixing target temperature is set to execute fixing with appropriate fixing temperature in accordance with paper type size thickness and shape Temperature Control at Normal Times The temperature control at normal times is executed during printing to maintain the temperature of the fixing heater as its target temperature Temperature Control at Sheet to sheet Interval The temperature control at sheet to sheet interval is executed to keep the temperature lower than the target temperature in order to prevent the temperature raise at the area between a preceding sheet and a succeeding sheet in case of the envelop mode and the small size mode The temperature of the fixing heater is detected with the thermistor located on the fixing heater When the surface temperature of the fixing heater increases the resistance value of the thermistor is decreased and the voltage of the fixing heater temperature detection signal of the thermistor is decreased The CPU 1C902 on the DCNT board monitors the voltage of the FSRTH signal By outputting the fixing heater drive signal FSRD in accordance with the voltage the CPU makes the phototriac coupler to turn ON OFF and it controls the temperature of the fixing heater to be the specified value The CPU starts the fixing heater temperature control to be 100 deg C when the power is ON Because the viscosity of grease inside of th
101. ws 1 and detach the upper cover 2 11 F 9 11 9 3 6 Cartridge Cover 9 3 6 1 Preparation for Removing the Cartridge Cover i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 3 Remove the left cover 4 Remove the rear cover 5 Remove the control panel 9 3 6 2 Removing the Cartridge Cover i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Open the cartridge cover 1 2 Remove the link stopper 2 3 Remove the 2 pressure release levers 3 through the 2 holes 4 Chapter 9 4 2 F 9 12 A Points to Note When Attaching Make sure to attach the link stopper 2 after attaching the right cover If at taching the link stopper while attaching the cartridge cover it may drop in side the machine 4 With the cartridge cover 1 opened detach it upward t n NO F 9 13 9 3 7 Operation Panel Unit 9 3 7 1 Removing the Control Panel Unit i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the 2 screws 1 and the 2 claws 2 2 1 F 9 14 2 Disconnect the connector 1 and remove the control panel unit 2 F 9 15 9 3 8 SCNT Board 9 3 8 1 Preparation for Removing the SCNT Board i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove the front cover 2 Remove the right cover 9 3 8 2 Removing the SCNT Board i SENSYS MF4150 i SENSYS MF4140 i SENSYS MF4120 1 Remove

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