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1. 06 17 1999 13 07 FAX 0123456789 Canon Inc 4 SW16 00110000 5117 00000000 SW18 00000000 519 00000000 5120 00000000 SW21 00000000 5122 00000000 5123 00000000 SW24 00000010 06 17 1999 13 06 FAX 0123456789 Canon Inc 003 06 12 07 3 08 3 6 REORDER TONE 10000000 LS 0 02 18 03 32 04 s 18 06 17 1999 13 06 FAX 0123456789 Canon Inc 002 3500 18 120 16 4 1 17 100 18 18 200 20 100 21 22 200 8 06 17 1999 13 05 FAX 0123456789 Canon Inc oor 1295020222050920420229222055 SYSTEM DATA LIST sst ba EEE E EEEE EE EERE EE E E E 4 1 SSSW 501 00000000 S O20 2 000 oo 00000000 9 5 03 00000000 5104 19000000 5105 00000000 5706 10010000 107 00000000 5108 00000000 Swag 00000000 5910 00000000 vA 00000000 882 ee 00000010 5 13 00000000 nee 00000000 SWI5 00000000 5 16 00000011 10 SW17 00000000 SW18 00000000 SW19 00000000 5 20 00000000 821 00000000 5122 00000000 5123 00000000 00000000 3925 00000000 5 26 00000000 5927 00000000 SW28 00000000 5129 00000000 so o 00000000 2 MENU 06 DIAL 07 10 08 3429 93 33 6 10 25Hz 3 NUMERIC Param 10 03 15 04 12 05 4 05 4 0 10 5500 Figure 3 36 System Data List page 1 page 4 3 76 MultiPASS C755 Chapter 3 Maintenance amp Service 06 17 1999 13 07 FAX 0123456789 Canon Inc Boos 48 0 10 M ZR 5 49 ipia 0 BO ne 06 17 1999 13
2. 8 CLEAR TEL Dialling data initialization Data initialization mode USER SW User data and service data 1 to 3 settings initialization r SERVICE SW User data and service data 1 to 3 and 6 to 7 initialization NCU 4 NCU setting data initialization SERVICE DATA Data on system dump list initialization REPORT Data on activity report initialization COUNTER Total number of pages printed scanned ALL All user data service data activity management data and image data initialization except COUNTER r 9 ROM USA 03 01 Version No and Checksum display ROM management 000612 6131 FFFF TEST MODE See page 3 58 Figure 3 23 Service Data page 6 not cleared If TEL or SERVICE SW is selected the memory management of the user data is cleared B B If USER SW is selected from 48 CLEAR the memory management of the user data is For details on test mode see 7 2 Service Test Functions on page 3 58 REFERENCE 3 51 MultiPASS C755 Chapter 3 Maintenance amp Service 6 2 4 Explanation of service data a SSSW Service Soft Switch settings The items registered and set by each of these switches comprise 8 bit switches The figure below shows which numbers are assigned to which bits Each bit has a value of either 0 or 1 Swoi 0 0 00 00 0 0 Figure 3 24 Bit Switch Display See the chart in the service data shown in this Chapter 6 2 3 Service data setting to s
3. c 3 Test Menu 3 Test Menu 3 is selected by pressing the 3 button from the Line Detect menu When CNG is detected from the modular jack the display changes from OFF to ON c 4 Test Menu 4 This item is not used Do not select it 3 71 MultiPASS C755 Chapter 3 Maintenance amp Service 7 2 8 Printer test Press key 8 on the keypad in the test mode menu and select Printer test After that select 1 When this function is selected the printer scans the carriage and detects the presence absence of ink It then prints the results The normal use of the ink sensor can be checked by using this function 1 Equip the the BJ cartridge with an empty ink cartridge 2 Print out using this function 3 Check that the value for ExislInk is 0 the proper value for empty ink If the value displayed for the empty ink under ExisInk is 1 perform the following troubleshooting procedures 1 Check the connection between the ink sensor and the PCNT board 2 Replace the ink sensor 3 Replace the PCNT board Magenta ink tank Black ink tank Yellow ink tank Cyan ink tank ExistInkY 1 EsistInkM 1 ExistInkc 1 ExistInkm 1 ExistInkc 1 ExistInkK 1 O3DF 03DF 03EF 0309 0309 033F Photo Cyan ink tank Photo Magenta ink tank Figure 3 34 Ink Check Big NOTE Tests 2 5 are not used in the PRINTER test in the field 3 72 MultiPASS C755 Chapter 3 Maintenance amp Service 8 SERVICE
4. 3 79 MultiPASS C755 Chapter 3 Maintenance amp Service 06 17 1999 13 15 FAX 0123456789 750 1 LATEST START TIME OTHER PARTY MAKER CODE MACHINE CODE RCV V 8 FRAME SYMBOL RATE DATA RATE TX LVL REDUCTION ERR ABCODE ERR SECTXB ERR SECRXB Rx bit 1 00000000 01000010 00011111 00100010 00000000 00000000 00000000 bit56 Tx bit 1 00000100 01110111 00010101 00100011 00000001 00000001 00000001 61156 bit57 00000001 00011001 00000100 00000000 00000000 gt 002 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 106 06 14 11 37 3362 3362 10001000 01011101 00000000 EO 81 85 D4 90 7E 00 00 3429 31 2 0 00 80 80 bit96 NSS TSI DCS Tx NSF CSI DIS PIX 312 CFR DCN 55102 nnn START TIME OTHER PARTY MAKER CODE RCV V 8 FRAME SYMBOL RATE ERR ABCODE ERR SECTXB ERR SECRXB RX TX Figure 3 39 System Dump List 2 2 Service error code Communication start date and time on 24 hour clock Telephone number sent from other party Maker code 1000 1000 Indicates a Canon fax lower nibble upper nibble Received V 8 protocol signal Symbol rate used for the primary channel TX LVL REDUCTION 0 Fixed Code output by the modem when an error occurred Not used in the field Transmit status of the modem when an error occur
5. 8 CLEAR Set v 8 CLEAR Selects J ALL Set Execute All clear Standb Liv ALL Figure 2 1 All Clear Operation While waiting to return to the ready state after executing All clear please do not press the Stop button Doing so may cause a malfunction afterwards 2 3 MultiPASS C755 Chapter 2 Assembly and Disassembly 2 DISASSEMBLY ASSEMBLY 2 1 Parts Layout The parts layout of this machine consists of the scanning assembly printing assembly and printer Separation roller Pick up roller Document feed SS eS w Lifting plate Document eject roller Document feed roller Paper feed motor Carriage motor Paper eject roller Carriage belt Paper feed roller Paper path Document feed section Document path Paper feed section Figure 2 2 Mechanical Layout 2 4 MultiPASS C755 Chapter 2 Assembly and Disassembly The electrical parts are laid out as follows e SCNT board system control e PCNT printer control NCU interface with telephone line Power supply unit supplies power to the units and assemblies e OPCNT board detects keyboard operation and displays machine information SeDSOES detect unit and assembly statuses Cover sensor Detects the state of printer cover Pickup roller sensor
6. PCBs and electrical elements must lifted around the edges and their terminals must not be touched Caution against electrical shock while working with power on In cases where service must be carried out with power on via a connected power cable be sure to wear an anti static wrist strap or other earth in order to prevent an electrical path being created through your body Application of grease Grease must not be applied to any parts that are not so designated If grease comes into contact with the rubber cap of the purge unit or wire the BJ cartridge nozzle may become blocked and the cartridge rendered unusable Also never use any other than the specified type of grease Otherwise plastic parts and rubber parts may melt or be otherwise deformed Attaching and removing cables Attaching and removing cables with the power still on may cause breakdowns and should be avoided In particular flat cables are likely to cause short circuits When attaching or removing cables always be sure to turn the power off 2 2 MultiPASS C755 Chapter 2 Assembly and Disassembly 1 3 Product Inherent Cautions Prevention of ink soiling Be careful when handling the BJ ink cartridge nozzle the ink pad head cap head wiper and waste ink pad Residual ink may soil the main unit working surfaces your hands and clothes etc The ink is water soluble but because it contains pigments it will not wash out of clothes The ink does not contain any
7. timer for the receiver wait time after DIS transmission starts until a significant signal is received If frequent errors occur during reception 2 instances because of line connection conditions raise the value of this parameter Parameter 13 Set the maximum time to receive one line of image data when image data is received If the other party is a computer fax and the time to receive one line of image data is long raise the value of this parameter to increase the maximum reception 2 instances time 7 PRINTER printer function settings 1 SSSW SW12 Switch 12 Report frame setting Bit Function 1 0 0 Report frame lines OFF ON 1 Report frame line types Dashed line Solid line 2 Not used 3 Not used 4 Not used 5 Not used 6 Not used 7 Not used Bit 0 Select whether to draw a frame for printing a report or list Bit 1 If a frame is drawn for printing a report or list either a solid line or a dashed line can be selected 3 55 MultiPASS C755 Chapter 3 Maintenance amp Service 7 PRINTER printer function settings 2 NUMERIC PARAM No Function Selecting range Default setting 05 Trailing edge margin 0 9999 7 7mm for black amp white copy amp FAX 13 Trailing edge margin 0 9999 26 26 mm for color copy amp color FAX Parameter 07 Sets the bottom margin for B W printing Copy amp Fax This parameter also sets the margins when PRINT MARGIN in user data is set to SMALLER for color printing
8. Parameter 13 Sets the bottom margin for color printing The margin used when PRINT MARGIN in user data is set to NORMAL can be changed by this parameter when color printing However when the trailing edge of the recording paper passes through the pinch roller when the margins have been narrowed there are cases where a small amount of color shift occurs at the bottom edge of the image 5 INK ABS CAPA This switch allows the waste ink capacity stored in the PCNT board to be checked or entered SUCTION This allows the waste ink capacity for the ink absorbed during cleaning to be checked or entered When entering the waste ink capacity use the numeric buttons to enter a value 0 to 100 96 Tz The ink absorber s absorption capacity for the waste ink discharged by the BJ cartridge is BIB set to a certain amount The waste ink capacity settings are stored in the PCNT board s EEPROM When replacing the PCNT board check the waste ink capacity and enter the NOTE waste ink capacity into the new PCNT board The various waste ink capacity can be checked with the SYSTEM DUMP LIST 3 56 MultiPASS C755 Chapter 3 Maintenance amp Service 7 TEST FUNCTIONS 7 1 User Test Print Functions User enabled Test print functions are as follow 7 1 1 Nozzle check Execute cleaning if this test printing shows each nozzle condition such as no ejection unclear or unstable etc If the printing does not improve even after the cartridge is cleaned
9. lh k SSS pc i Position B1 V Jl Il Bn 5 Wes f s 17 Caveoosr 7 T os em HHE A I1 1 oio o 55510 G00 te 225 doo ees e d Align the carriage s left edge with the link sensor s cover Figure 3 9 Head Gap Adjustment 2 3 12 MultiPASS C755 Chapter 3 Maintenance amp Service This page intentionally left blank 3 13 MultiPASS C755 Chapter 3 Maintenance amp Service 4 TROUBLESHOOTING 4 1 Troubleshooting Index For troubleshooting use the troubleshooting index below to investigate the cause of the problem and refer to the specified page for countermeasures Problem Errors shown on the display Evaluation criteria Look at the unit in question The error message can be checked Page 3 16 The error code can be checked Page 3 22 General errors Page 3 30 The unit does not power on The display looks abnormal The buttons do not work No sound from the speaker Printing problem Evaluation criteria Test printing is no good The paper is not fed properly
10. Increase the transmission level Set service data 2 MENU Parameter No 07 to 0 dBm Decrease the transmission level Set service data 2 MENU Parameter No 07 to 15 dBm Echo measures Change the following bit switches of service data 1 SSSW SWO3 Bit4 1 Ignore the first DIS signal sent by the other fax machine 0 Do not ignore the first DIS signal sent by the other fax machine Bit5 1 Transmit a tonal signal 1850 or 1650 Hz when the other fax machine sends a DIS signal 0 Do not transmit a tonal signal when the other fax machine sends a DIS signal Bit6 1 Transmit a 1850 Hz tonal signal when bit 5 is 1 Transmit a 1650 Hz tonal signal when bit 5 is 1 Bit 7 1 Transmit tonal signal before sending a CED signal 0 Do not transmit a tonal signal before sending CED signal MultiPASS C755 Chapter 3 Maintenance amp Service Echo Protect Tone Change service data 1 SSSW SWOS bit 1 Bit 1 1 Transmit an echo protect tone Not transmit an echo protect tone Adjust NL equalizer Set service data 2 MENU Parameter No 05 to ON Reduce the transmission start speed Reduce the transmission speed by changing user data SYSTEM SETTINGS TX START SPEED Loosen the judgment standard Not available for this fax Loosen the RTN transmission conditions Change service data 3 NUMERIC Param Parameter No 02 to 04 No 02 Percentage of errors in all lines Set close to 99 No 03 Number of lines of b
11. Backup contents Dial registration data User data Service data Time Backup IC 2773 kbit SRAM for control Backup device Lithium battery 3 0V DC 220 mAh Battery life Approx 5 years Image data backup None Image Memory Approx 6 67 MB Activity management Yes a User report Activity management report Every 20 transactions always transmission and reception together Activity report sending receiving One touch speed dialling list Coded speed dialling list Group dialling list Memory clear list User s data list Document memory list Multi activity report b Service report System data list System dump list Error list Transmitting terminal identification Yes Time Management data Year month date day hour minute 24 hour display Precision 90 sec per month Display 1 row x 16 digits Completion stamp None Program button None Hook button Yes Telephone exchange function None Speaker phone None Demo print function None HELP function None MultiPASS C755 Chapter 1 General Description 3 OVERVIEW 3 1 External View Front View DOCUMENT SUPPORT Holds documents as they feed into the ADF ADF AUTOMATIC DOCUMENT FEEDER and PRINTER COVER Holds documents to be scanned PAPER REST Supports print media stacked in the multi purpose tray MULTI PURPOSE TRAY Holds plain paper and other print media PAPER GUIDE Keeps print media in position Adjust to the width of the print media DOCUMENT
12. Detects the state of pickup roller Paper edge sensor Detects the state of paper A feeding and delivery Detects that there is no ink in the ink chamber Reflection type sensor Home position sensor Detects the carriage position and purge unit status Document edge sensor Detects the trailing edge of the document Document sensor Detects whether or not a document is set PCNT board OPONT board Power supply unit NCU board SONT board Figure 2 3 Electrical Layout 2 5 MultiPASS C755 Chapter 2 Assembly and Disassembly 2 2 Disassembly Work Flow The work flow for the disassembly of the main units is as follows In order to replace parts you need to confirm which parts have to be removed Numbers in parenthese indicate the disassembly number SCNT NCU board 3 Print ASS Y 4 Carriage unit 17 Carriage motor 18 ASF unit 14 Pick up roller 15 Ink sensor 20 Spur unit 21 Figure 2 4 Disassembly Work Flow MultiPASS C755 Chapter 2 Assembly and Disassembly 2 3 Disassembly Procedure Disassembly 1 Upper covers printer covers 1 Remove the three screws a 2 Remove the two tabs b then remove the upper cover c and the printer cover d Figure 2 5 Disassembly 1 f To remove the upper cover insert the tool into the two holes shown in the diagram and 34 prise loose the tabs The front part of the cover is fastened with tabs so it needs to be pulled forward and then
13. MultiPASS C755 Chapter 1 General Description Printing range Black amp White FAX Paper dimensions W x L Letter 8 50 x 10 98 216 mm x 279 mm Legal 8 50 x 14 02 216 mm x 356 mm A4 8 27 x 11 69 210 mm x 297 mm Paper leading edge 2 1 ET gt PRINTING DROP OUT RANGE 4 PRINTING RANGE Paper trailing edge Figure 1 2 Printing Range Item 4 Letter Legal 1 Effective printing width 8 00 8 00 8 00 203 2 mm 203 2 mm 203 2 mm 2 Left margin 0 13 0 06 0 25 0 06 0 25 0 06 3 4 1 5 mm 6 41 5 mm 6 4 1 5 mm 3 Right margin 0 13 0 06 0 25 0 06 0 25 0 06 3 4 1 5 mm 6 4 1 5 mm 6 4 1 5 mm 4 Top margin 0 12 0 06 0 12 0 06 0 12 0 06 3 0 1 5 mm 3 0 1 5 mm 3 0 1 5 mm 5 Bottom margin 0 20 0 12 0 20 0 12 0 20 0 12 5 043 0 mm 5 0 3 0 mm 5 0 3 0 mm Units are inches with mm shown in parentheses The header and footer are printed in the printing range BA The shaded area is included in the left and right margin errors of the paper trailing edge NOTE The printing range is set in user data PRINTER SETTINGS PAPER SIZE 1 7 MultiPASS C755 Chapter 1 General Description Printing range Color FAX amp Printer mode Plain paper and Special media Color FAX amp Printer mode W X L Min 7 17 X 1012 inch 182 X 257 mm Max 8 5 X 14 0 inch 216 X 356 mm w lt gt Feed direction c d
14. Receive DCN after EOR EOM transmission during ECM Tx 3 26 MultiPASS C755 Chapter 3 Maintenance amp Service No Tx or Rx Definition 783 Exceed protocol retransmission limit or 5 time 60 seconds after EOR EOM transmission during ECM Tx 4784 TX Receive ERR after EOR EOM transmission during ECM Tx 1HET85 TX Exceed protocol retransmission limit due to failure to receive significant signals after EOR EOP transmission during ECM Tx 787 TX Receive DCN after EOR EOP transmission during ECM Tx 788 TX Exceed protocol retransmission limit or 5 time 60 seconds after EOR EOP transmission during ECM Tx 789 TX Receive ERR after EOR EOP transmission during ECM Tx 790 RX Transmit ERR after EOR Q reception during ECM Rx 791 TX RX Receive non significant signals during ECM mode procedures 792 RX Fail to detect PPS NULL between partial pages during ECM Rx 793 RX Time over due to failure to receive valid frame during high speed signal Rx upon ECM Rx H794 TX Receive all 0 PPR during ECM Tx 795 TX RX Trouble in the decoding processing during communication 799 TX System error 3 27 MultiPASS C755 Chapter 3 Maintenance amp Service d Recovery methods for codes indicated as New Note however the following supplementary information as the machine requires different actions than the existing models to correct 085 Other party does not support ITU T Col
15. Solution Divide the document and send or copy each part separately Contact the other party Have them divide the document and send each part separately HANG UP PHONE Cause The handset or the extension telephone is off the hook Solution Put the handset or the extension telephone back on the hook INSTALL BC 33 cause You tried to make color copies with the installed Black BJ cartridge Solution Remove the Black BJ cartridge and install the color BJ cartridge Cause You tried to print a received color fax with the installed Black BJ cartridge Solution Remove the Black BJ cartridge and install the Color BJ cartridge If you do not have this BJ cartridge available you can convert received color fax in memory to black amp white and print the fax with the Black BJ cartridge Cause You disabled the PHOTO INK PRINT setting and tried to print a received color fax with the installed Photo BJ cartridge Solution Remove the Photo BJ cartridge and install the Color BJ cartridge Alternatively enable the PHOTO INK PRINT setting Cause You tried to make a color copy in PLAIN PAPER or COLOR DRAFT mode with the installed Black BJ cartridge Solution Remove the Black BJ cartridge and install the Color BJ cartridge INSTALL BC33 30 Cause You disabled the PHOTO INK PRINT setting and tried to make a black amp white copy print a received black amp white fax print a report or print a black amp white document in me
16. a Plain paper etc 1 26 inch 32 0 mm 0 12 inch 3 0 mm Fabric sheet only 1 5 inch 38 1 mm b 0 20 inch 0 91 inch 23 0 mm 5mm BC 30 L 1 02 inch 26 0 mm A4 BC 33 34 Photo 0 13 inch 3 4 mm LTR LGL 0 25 inch 6 4 mm y b f Recommended printing area A Y Printable area contains recomended printing area Envelopes W XL COM 10 9 48 X 4 17 inch 241 X 106 mm DL 8 66 X 4 33 inch 220 X 110 mm gt d S L b f a 0 12 inch 3 0 mm 1 Feed direction b 0 20 inch 5 mm C 0 27 inch 6 4 mm d COM 10 1 24 inch 31 4 mm DL 0 41 inch 10 4 mm e 1 26 inch 32 0 mm f 0 93 inch 23 5 mm Figure 1 3 Printing Range 1 1 8 MultiPASS C755 Chapter 1 General Description Banner paper Max 6 folds To be cut at the edge of the 7th fold IJ Recommended print area EE Printable area a 0 13inch 3 4mm b 0 13inch 3 4mm c 0 12inch 3 0mm d 1 26inch 32mm Figure 1 4 Printing Range 2 2 6 Copy Specification Color copy Yes Multiple copy 99 copies Black amp white mode only Copy mode Black amp white PHOTO Color PLAIN PAPER HI RES PAPER COLOR DRAFT COLOR SNAPSHOT Copy resolution Scanning Black amp white 360 dpi x 360 dpi direct copy 8 dot mm 7 7 line mm memory copy Color 360 dpi x 360 dpi PLAIN PAPER
17. after pages G3 standard approx 18 sec approx 4 sec approx 4 sec V 8 V 34 approx 8 sec approx 2 sec approx 2 sec Time from when other facsimile is connected to the line until image transmission begins 2 Post message between pages Time from after one document has been sent until transmission of the next document starts if several pages are transmitted 3 Post message after last pages Time from after image transmission is completed until line is switched from facsimile to telephone Minimum transmission time 10 msec G3 0 msec G3 ECM Transmission output level From 0 to 15 dBm Receive input level From 3 to 43 dBm Modem IC FM336 2 3 Color Communication Specification ITU T recommendation Scanning Document size Printing paper size Resolution Picture element Coding Color space Data Sub sample ITU T T 30 ANNEX E JPEG Color Fax T 4 ANNEX E JPEG Header T 42 Color space for Color Fax T 81 JPEG A4 A4 200x200 dpi 8 bit JPEG CIELAB CIE Standard Illuminant D50 4 1 1 Lab 1 3 MultiPASS C755 Chapter 1 General Description 2 4 Scanner Specification Type Sheets ADF capacity Max 20 sheets A4 Letter Max 10 sheets Legal Effective scanning width Letter Legal 8 42 214 mm 4 8 19 208 Scanning method Contact sensor scanning method Scanning resolution 600 x 600 dpi Scanning
18. photo cyan photo magenta and yellow BC 34 Photo BJ Cartridge or Photo Black PHOTO BLACK BJ TANK z BCI 3PBK Photo or BCI 3ePBK Photo PHOTO CYAN BJ TANK BCI 3PC Photo or BCI 3ePC Photo PHOTO MAGENTA BJ TANK BCI 3PM Photo or BCI 3ePM Photo YELLOW BJ TANK BCI 3Y or BCI 3eY BC 34e Photo BJ Cartridge PHOTO BLACK BJ TANK BCI 3ePBK Photo PHOTO CYAN BJ TANK BCI 3ePC Photo PHOTO MAGENTA BJ TANK BCI 3ePM Photo YELLOW TANK BCI 3eY You can use both BCI 3 and BCI 3e BJ tanks in this BJ cartridge However we recommend you use the same model for all four BJ tanks Use only BJ tanks in this BJ cartridge Figure 1 10 Consumables 1 MultiPASS C755 Chapter 1 General Description Black BJ Cartridge Sold separately Prints in monochrome It contains one black BJ tank BC 30 Black BJ Cartridge Or BC 30e Black BJ Cartridge BLACK BJ TANK BLACK BJ TANK BCI 3BK or BCI 3eBK BCI 3eBk Z To help ensure the maximum life of your BJ cartridges always follow the guidelines for Note cartridge maintenance For optimum printing results and to avoid printing problems Canon recommends that you only use the Canon BJ cartridges and tanks mentioned in this guide Figure 1 11 Consumables 2 MultiPASS C755 Chapter 1 General Description 3 3 2 Print media Bi Plain Paper The MultiPASS supports letter legal and A4 size paper in p
19. standards by the 5 TYPE setting Do not change these setting 6 GENESIS UHQ function settings Tampering with this setting may cause the scanned image quality to deteriorate Do not change these settings 3 49 7 PRINTER 1 SSSW Printer function settings Bit m SWO1 m SW02 m SWO3 m SW04 m 5 05 m 5 06 SW11 M SW12 SW20 N 2 NUMERIC Param 3 PRINT COUNT 4 PRINTER RESET Y 5 INK ABS 6 PURGE TIMER 55 51 07 10 SW13 20 MultiPASS C755 Chapter 3 Maintenance amp Service Notused Notused Notused Notused 0 Reduction cassette selection settings 1 0 O Reduction settings 0 Copy printing setting 0 0 Report frame setting Not used 01 18 mm Maximum drop out range 02 0 Not used 03 0 Not used 04 0 Leading edge margin 05 7 mm Trailing edge margin Black printing 13 26 mm Trailing edge margin A Color printing Item 06 11 13 30 Not used 30 86 Print counter check Yes Printer section reset function No SUCTION Waste ink capacity check entry See page 3 56 Not used Figure 3 22 Service Data page 5 7 PRINTER 6 PURGE TIMER is not used Do not change this setting 3 50 MultiPASS C755 Chapter 3 Maintenance amp Service
20. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 200 0 0 0 0 0 220 0 0 0 0 0 0 0 0 0 0 0 0 0 0 280 0 0 0 0 0 0 0 0 0 a Figure 3 38 System Dump List 1 2 3 78 001 MultiPASS C755 Chapter 3 Maintenance amp Service CLEAR DATE Date on which data was initialized with service data 8 CLEAR ALL RX TX Total number of receptions transmissions A4 B4 A3 LTR LGL Total number of pages transmitted and received for each document size 33600 bps 2400 bps Total number of pages transmitted and received for each modem speed STD FINE SUPER ULTRA Total number of pages transmitted and received for each mode MH MR MMR JBIG JPEG Total number of pages transmitted and received for each coding method G3 ECM Total number of pages transmitted and received in each mode PRINT READ Total number of pages printed scanned Display example PRINT 30 100 READ 30 100 Indicates the value input with Service Data 8 CLEAR COUNTER Indicates the value counted since shipment from the factory INK ABSORBER CAPACITY Waste ink absorber s ink absorption amount Display example Suction 10 These indicate the following The suction waste ink absorber s ink absorption amount is 10 000 750 Display example Total number of occurrences for each error code 280 1 7 3 0 0 280 281 282
21. 1 Settings 1 Set the MAN AUTO SWITCH in the user data RX SETTINGS to ON 2 Set the number of seconds that the fax will wait after detecting ringing signal from the telephone line before going into reception using user data F T RING TIME in MAN AUTO SWITCH 5 3 2 Parameters Default Setting Selection Item Setting Switch Range MAN AUTO SWITCH OFF User data ON OFF F T RING TIME 15 sec User data 1 to 99 sec 3 40 MultiPASS C755 Chapter 3 Maintenance amp Service 5 4 Operations Where Other Machine Does not Have Color Communications Ability When sending a color FAX where the other machine does not have color communications ability this machine informs the user by displaying TRY AGAIN IN B W 085 In other words it judges whether or not the other machine can receive in color according to the DIS from the receiving machine It does not automatically switch to BW and re send The following measures are necessary for the user to deal with this situation depending on the other machine 1 When the other machine is a BW FAX The other machine can only receive BW images so re send as a normal BW Fax 2 When the other machine is an ITU T color communications compatible FAX The other machine is set to disallow color reception or it is possible that color reception temporarily cannot be done for some reason so re send after having the other party check the settings and set them to allow color communication 5 5
22. 2 gt gt o PGRSpqrs C 4 e lt TUVtuv x e WXYZwxyz x m E O N o a A o 2 8 5 l amp lt gt 9 E 3 o Letter input Number input 1 f you pause for more than 60 seconds between entering characters the unit will automatically return to standby mode Figure 1 9 Operation Panel 3 MultiPASS C755 Chapter 1 General Description 3 3 Consumables 3 3 1 BJ cartridge and ink cartridge BJ Cartridges and BJ Tanks A BJ cartridge is made up of a holder that contains the print head unit and different color BJ ink tanks that are placed inside the holder You can replace individual BJ tanks as they run out Canon offers several BJ cartridges for use with the MultiPASS Bl Color BJ Cartridge Either one included with your MultiPASS Prints in color and monochrome It contains four BJ tanks Black cyan magenta and yellow BC 33 Color BJ Cartridge Or BLACK BJ TANK BCI 3BK or BCI 3eBK CYAN BJ TANK BCI 3C or BCI 3eC MAGENTA BJ TANK BCI 3M or BCI 3eM YELLOW BJ TANK BCI 3Y or BCI 3eY BC 33e Color BJ Cartridge BLACK BJ TANK BCI 3eBk CYAN BJ TANK BCI 3eC MAGENTA BJ TANK BCI 3eM YELLOW BJ TANK BCI 3eY Photo BJ Cartridge Sold separately Prints photo realistic images in color It contains four BJ tanks Photo black
23. 3 Replace the SCNT board 3 30 MultiPASS C755 Chapter 3 Maintenance amp Service 4 3 2 Printing problems Faulty printing Evaluation criteria Test print is no good The paper is not fed properly Evaluation criteria Look at the actual unit The Paper feed motor does not run 1 Check the connection from the paper feed motor to the PCNT board J202 2 Check the paper feed motor s resistance 2 4 Q 1 phase is normal Fig 3 11 3 Replace the paper feed motor 4 Replace the PCNT board The paper is not picked up from the auto sheet feeder 1 Check parts in the paper feed motor drive switching mechanism for abnormalities 2 Make sure that the ASF gear is attached correctly 3 Replace pickup roller ass y 4 Replace PCNT board Faulty PRS or PES The printing operation is abnormal Nothing is printed 1 Remove the BJ cartridge and re install it 2 Execute cleaning five times and try printing again 3 Replace the BJ cartridge The carriage motor does not run 1 Check the connection from the carriage motor to the PCNT board J203 2 Check the carriage motor s resistance 3 3 phase is normal Fig 3 11 3 Replace the carriage motor 4 Replace the PCNT board Paper feed motor connector Carriage motor connector Document feed motor connector To paper feed motor To carriage motor DU ei feed motor ZZ 18 240 22 1 3 3 30 CF 1 2 150 n A A PS 2 4 2 40
24. 4 and remove the printer assembly 2 Take off the sensor cover a 3 Disengage the ink sensor b from the connector cables Disassembly 21 Spur unit 1 Carry out Disassembly 20 2 Disengage the tab c 3 Remove the Spur unit d Figure 2 21 Disassembly 20 and Disassembly 21 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 22 ROM replacement With this unit there should be no need to replace ROMs but in the event that ROM replacement becomes necessary follow the procedure described below a Caution After replacing the ROM you will need to perform an Clear so be sure to make a note of any necessary data beforehand a 1 Image data stored in the image memory Image data stored in the image memory will be wiped clean as soon as the power is cut Output all images from the memory before turning off the power a 2 User reports After pressing the Function button press the Report button and then use the AV buttons to select the reports to be output a 3 Service reports After selecting service data mode press the Report button and then use the AV buttons to select the reports to be output b ROM replacement procedure 1 Remove power cord 2 Put on a wrist strap and take any other available anti static precautions 3 Perform Disassembly 1 4 Use the ROM removal tool to remove the ROM from the SCNT board and PCNT board Be sure to check which ROM goes back to which
25. COMMUNICATION SYSTEM OPERATIONS FAX TEL Switching 5 1 1 Settings 5 1 2 Parameters Answering Machine Connection 5 2 1 Settings 5 2 2 Parameters Manual Auto Reception Switching 5 3 1 Settings 5 3 2 Parameters Operations Where Other Machine Does not Have Color Communications Ability Conditions Necessary for Color Reception Specifications for Color Communications SERVICE SWITCHES Hardware Switches Service Data Setting 6 2 1 Service data overview 6 2 2 Service data registration setting method 6 2 3 Service data setting 6 2 4 Explanation of service data 6 2 5 New SSSWs parameters added to this model V 3 57 3 57 3 57 3 58 3 58 3 59 3 61 3 61 3 62 3 64 3 67 3 72 3 73 3 73 3 73 75 83 3 83 3 84 3 84 3 85 4 1 4 1 4 4 7 TEST FUNCTIONS 7 1 User Test Print Functions 7 1 1 Nozzle check 7 2 Service Test Functions 7 2 1 Test mode overview 7 2 2 Test mode flowchart 7 2 3 D RAM tests 7 2 4 CS tests 7 2 5 PRINT test 7 2 6 Modem and NCU tests 7 2 7 Faculty tests 7 2 8 Printer test 8 SERVICE REPORT 8 1 Report Output Function 8 1 1 User report output functions 8 1 2 Service report output functions 9 WIRING DIAGRAM 9 1 Wiring Diagram 10 BLOCK DIAGRAM 10 1 Block Diagram 10 2 Circuit Board Components Chapter 4 Appendix 1 USER DATA FLOW 1 1 User Data Flow by Operation Panel 1 2 User Data Flow by MultiPASS Suite INDEX VI MultiPASS C755 Chapter 1 General
26. G3 signal transmission test V34 signal transmission test a Frequency test The modem sends tone signals from the modular jack and the speaker The modem sends G3 signals from the modular jack and the speaker The V 34 modem sends G3 signals from the modular jack and the speaker The frequency test menu is selected by pressing the 2 button from the MODEM NCU test menu Signals of the frequencies below are sent from the modem using the modular jack and the speaker The frequency can be changed with the numeric buttons Numeric button Frequency 1 RU 462 Hz 1100 Hz 1300 Hz 1500 Hz 1650 Hz 1850 Hz 2100 Hz BIB The transmission levels for each frequency follow the service data transmission level settings NOTE 3 64 MultiPASS C755 Chapter 3 Maintenance amp Service b G3 signal transmission test The G3 signal transmission test menu is selected by pressing the 4 button from the MODEM NCU test menu The G3 signals below are sent from the modem using the modular jack and the speaker The frequency can be changed with the numeric buttons Numeric button Frequency 0 300 bps 1 2400 bps 2 4800 bps 3 7200 bps 4 9600 bps 5 TC7200 bps 6 TC9600 bps 7 12000 bps 8 14400 bps B The transmission level for each frequency follows the service data 3 65 MultiPASS C755 Chapter 3 Maintenance amp Service V 34 G3 signal transmission test The V 34 G3 signal tr
27. HI RES PAPER COLOR SNAPSHOT 180 dpi x 180 dpi COLOR DRAFT Printing 360 dpi x 360 dpi Copy magnification ratio 100 90 80 70 150 200 COLOR SNAP SHOT 1 9 2 7 Function MultiPASS C755 Chapter 1 General Description Dialling Manual dialling Auto dialing Numeric button Max 120 digits One touch 12 Coded speed 100 Numeric button 1 Group dial Redial Max 111 locations Numeric button redial function Max 120 digits Transmission Broadcast transmission button 1 Delayed transmission Confidential Tx Rx Relay broadcasting originating None Relay broadcasting None None Max 113 locations One touch 12 Coded speed 100 Numeric Yes PC Assisted Max 30 reservation Reception Dual Access FAX TEL switching Method Message Pseudo CI Pseudo ring Pseudo ringback tone Reduction settings for reception Automatic reduction of reception images Built in Answering machine Answering machine connection Remote reception Yes Yes CNG detection None None Yes Yes Yes Yes 10096 70 None Yes Telephone answering priority type Yes Remote ID method Memory lock reception None Reception printing in reverse order None Polling Polling transmission None Polling reception None MultiPASS C755 Chapter 1 General Description Others Closed network None Direct mail prevention None Reception printing in reverse order None Memory box None Memory backup
28. O 2 4 3 30 h 3 4 159 1 1 Figure 3 11 Paper Feed Motor Carriage Motor Document Feed Motor Connector 3 31 MultiPASS C755 Chapter 3 Maintenance amp Service Printing quality error The printer does not at all Printing stops midway Certain colors are not printed 1 2 3 4 5 6 Check that the orange cap or tape is not on the BJ cartridge Carry out nozzle cleaning on the BJ cartridge five times with the cleaning operation than visually cheek the test print for non discharge of ink from nozzle Fig 3 12 Remove and reinstall the BJ cartridge Replace the appropriate ink tank Replace the BJ cartridge Replace the purge unit Blotches appear Blank ink appear 1 2 3 4 5 6 7 8 9 Carry out nozzle cleaning on the BJ cartridge five times with the cleaning operation than visually cheek the test print for non discharge of ink from nozzle Fig 3 12 Remove and reinstall the BJ cartridge Replace the appropriate ink tank Replace the BJ cartridge Check the connection of the carriage ribbon cable and the PCNT board J501 502 Check the connection of the carriage ribbon cable and the carriage board CN1 CN2 Replace the carriage ribbon cable Replace the carriage board Replace the PCNT board 10 Replace the purge unit Missing dots 9 Unstable printing Splashed dots Figure 3 12 Defective Pattern Sample 3 32 MultiPASS C755 C
29. Page 3 31 The paper feed motor does not run The paper is not picked up from the auto sheet feeder The printing operation is abnormal Page 3 31 Nothing is printed The carriage motor does not run Printing quality error Page 3 32 Evaluation criteria Look at the printing result The printer does not at all Printing stop midway Certain colors are not printed Blotches appear Blank ink appear 3 14 MultiPASS C755 Chapter 3 Maintenance amp Service Scanning problem Evaluation criteria Test printing is good but the copied image is no good The document is not fed Page 3 33 The document feed motor does not run The document slips against the rollers The document does not separate Faulty scanner unit s sensors The scanning image is abnormal Page 3 34 Nothing is printed The image has vertical stripes The image has thick vertical stripes The half tone image contains black dots The color or brightness of the scanned image is not normal Processing communication problems Page 3 35 Initial identification of problems Procedures for processing communication problems 3 15 MultiPASS C755 Chapter 3 Maintenance amp Service 4 2 Errors Shown on the Display 4 2 1 User error message Look for the applicable error message and execute the appropriate countermeasures BUSY NO SIGNAL 2005 4018 Cause The receiving fax did not answer within 35 seconds T1 timer over Solution Contact the
30. Part No Grease FLOIL G311S Apply to specified parts TKC 0953 Grease IF 20 Apply to specified parts CK 8006 Grease PG 641 Apply to specified parts CK 0562 Grease PERMALUB G No 2 Apply to specified parts CK 0551 Gap gauge 2 3mm For adjusting the head gap QY9 0054 Tension spring For adjusting the carriage belt tension QY9 0043 Cover opener For opening the upper cover HY9 0021 f Cover opener The Cover opener round tip screwdriver has been set as a special tool but precision screwdriver with a tip diameter of 1 5 mm or less would do instead If using a NOTE substitute be careful not to scratch any surfaces 3 3 MultiPASS C755 Chapter 3 Maintenance amp Service 2 HOW TO CLEAN PARTS 2 1 Main Unit Outer Covers Wipe with a dry soft cloth 2 2 Separation Roller Open the operation panel and wipe with a dry soft cloth 2 3 Document Feed Eject Roller Open the operation panel and wipe with a dry soft cloth 2 4 Separation Guide Open the operation panel and wipe with a dry soft cloth 2 5 Scanning Glass Contact Sensor Open the operation panel and wipe with a dry soft cloth 2 6 White Sheet Open the operation panel and wipe with a dry soft cloth 2 7 Printer Platen Open the Printer cover and wipe with a cloth moistened with a little water BiB If the parts above are very dirty wipe with a cloth moistened with IPA isopropyl alcohol NOTE Do not use tissue pape
31. When receiving c LCD display at the time of trouble d Communication management report at the time of trouble e User s name telephone number to contact Fax number model name f User s name of the other party telephone number to contact Fax number model name name of servicemen in charge g Frequency of trouble and error code 100 etc h Condition of the other party s facsimile Transmitted received page number Automatic or manual Error occurred The receive condition etc protocol data or error dump and g can be known by outputting the total transaction E When visiting a user with a trouble report a can be known by outputting the error report or the system error data list NOT 2 Test communication according to flowchart procedures appearing on the next page e Carry out the tests with the actual lines on each item several times verify the symptoms and record it n the case of trouble with another manufacturer s facsimile refer to the flowchart for troubles with other manufacture s 3 Finally process over by judging systematically all the data If other party s facsimile is that of another manufacturer and there is nothing wrong BB with your customer s machine it is recommended that you ask your customer to contact the facsimile user of the other party so that the other party s facsimile is checked by the NOTE dcdealer Call the service station in the flowchart Fi
32. board 5 Match up the new ROM and the notch in the IC socket and insert the new ROM Make sure that you are putting the right ROM into the right board 6 Replace all covers Cautions after replacement 1 If replacing a ROM because of defective ROM elements finish assembling the machine and then turn the power on 2 If replacing a ROM for the purposes of upgrading because of changes to soft switches such as service data or user data etc you must perform an AII Clear operation This is because the memory backed up by the battery still contains the previous settings Before performing Clear print out the data backed up by the battery in case you need to re programme them Refer to page 3 6 3 1 CS LED Light on Duration Adjustment for details REFERENCE 2 23 MultiPASS C755 Chapter 2 Assembly and Disassembly This page intentionally left blank 2 24 MultiPASS C755 Chapter 3 Maintenance amp Service 1 MAINTENANCE LIST 1 1 Consumables Level Consumable When User BJ cartridge BC 30 BC 33 BC 34 Photo When normal images are not output even after inserting ink into the ink tank and performing repeated HEAD cleaning INK tank BCI 3BK BCI 3C BCI 3M BCI 3Y BCI 3BK Photo BCI 3C Photo BCI 3M Photo When ink in the ink tank being used has run out Service Technician None 1 2 Cleaning For the cleaning procedure see 2 HOW TO CLEAN PARTS on page 3 4 Level Loca
33. four digits of the transaction number CONNECTION TEL Number sent from the other party or number dialled OTHER PARTY lower 20 digits SUBADDRESS Subaddress number sent from the other party CONNECTION ID ID sent from the other party if the other party is a Canon fax START TIME Communication start date time on 24 hour display USAGE TIME Communication time in minutes and seconds PAGES Number of pages for which transmission was complete For details see User s manual RESULT NG display with number of pages for which transmission was fault and service error code MAKER CODE Maker code 1000 1000 Indicates a Canon fax lower nibble upper nibble RCV V 8 FRAME Received V 8 protocol signal SYMBOL RATE Symbol rate used for the primary channel DATA RATE Transmission speed used for the primary channel TX LVL REDUCTION 0 Fixed ERR ABCODE Code output by the modem when an error occurred Not used in the field ERR SECTXB Transmit status of the modem when an error occurred Not used in the field ERR SECRXB Receive status of the modem when an error occurred Not used in the field RX TX Received transmitted protocol signal bit 1 to bit 96 of received transmitted DIS DCS or DTS BB The V 8 V 34 related items RCV V 8 FRAME to ERR SECRXB are not printed on the Normal G3 Service Activity Report NOTE 3 82 MultiPASS C755 Chapter 3 Maintenance amp Service 9 WIRING DIAGRAM 9 1 Wiring Dia
34. grease at both ends of the separation roller If it gets wiped off add an appropriate amount NOTE Take care not to scratch or soil with grease the ADF roller If the roller gets scratched or soiled it may adversely affect document feeding and cause document jams and feeding failure Figure 2 13 Disassembly 10 and Disassembly 11 2 15 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 12 Document feed motor 1 Carry out Disassembly 1 and Disassembly 2 then take out the ADF assembly 2 Remove the screw a and the earth plate b The plate has grease on it so be careful not to get it on your hands or clothing 3 Remove the two gears c Be careful of the grease 4 Remove the document feeding motor cable and earth wire from the cable guide 5 Remove the two screws d and then remove the motor and metal plate 6 Remove the two screws e and take out the document feed motor f Figure 2 14 Disassembly 12 Disassembly 13 PCNT board See Figure 2 15 1 Carry out Disassembly 1 2 Remove all the cables attached to the PCNT board 3 Remove the two screws a 4 Remove the PCNT board b Removal of screws When removing screws you should use short handled screwdriver that will not interfere with the ASF unit If you use a long handled screwdriver you may not be able to get at NOTE the screws easily and may end up damaging the heads of the screws PCNT board replacemen
35. indention of the ASF drive gear Placing the hooks on the upper side of the ASF and slowly swinging the ASF down will ease the installation 3 Fix the ASF unit to the printer chassis with screws to keep the adjusted gear position Figure 3 7 ASF Gear Initial Position Adjustment 3 10 MultiPASS C755 Chapter 3 Maintenance amp Service 3 5 When the Head Gap Needs Adjustment If the screws fixing the head gap adjustment plate attached to the printer frame become loose it will be necessary to adjust the head gap Preparing for adjustment 1 Remove the printer unit from the main unit 2 Remove the paper selctor lever spring and left right shaft clips and attach to the main unit 3 Rotate the red screws for fixing both sides of the printer chassis by half a turn to loosen them from their fixed position 4 Move the paper selctor lever to the thick paper position lower position Make sure that the gap gauge is not deformed and no foreign matter is attached to the gap gauge or the platen before performing the adjustment Carriage Belt Head Gap Adjustment Board Left Fixing Screw Red Paper Selector Lever Plain Paper Position Paper Selector Lever Spring Black BJ Cartridge Thick Paper Position Figure 3 8 Head Gap Adjustment 1 3 11 MultiPASS C755 Chapter 3 Maintenance amp Service Adjustment Procedures 1 Place the gap gauge QY9 0054 in Position Al 2 Move the carriage belt manually
36. judged to have reached 100 the message CHECK PRINTER error code 342 will be displayed and printing will stop in order to ensure that the volume of ink absorbed does not exceed the allowed limit To clear this error you need to replace the waste ink absorption pad and reset the waste ink volume counter Refer to page 3 28 Action for 342 for details on how to reset the waste ink volume counter 2 12 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 7 Operation panel 1 Perform Disassembly 1 and Disassembly 2 5 2 Remove the two screws a 3 Remove the operation panel b Figure 2 10 Disassembly 7 Attachment of operation panel sheet The service part unit configuration of the operation panel assembly assumes that it will be used with the operation panel sheet attached Therefore when replacing the operation NOTE panel assembly you need to purchase the operation panel unit and operation panel sheet and then attach the operation panel sheet onto the operation panel unit Align the upper edge of the sheet against the top of the operation panel adjust the position and then stick it down carefully Figure 2 11 Operation Panel Sheet Attachment 2 13 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 8 Separation guide 1 Perform Disassembly 7 and remove the operation panel 2 Remove the spring a 3 Remove the separation guide b Application of grease The
37. lifted up When attaching the cover fit the tabs in first 2 7 NOTE MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 2 Scanning assembly 1 Perform disassembly 1 2 Remove the three cables e connected to the SCNT board at the left side of the main unit Also remove the cables f connecting the SCNT board and the PCNT board Then remove the two cables j from the carriage motor and the ink sensor and remove the cable guide c When you remove the cable guide prise loose the tabs d 3 Remove the two screws g 4 Remove the two screws a and then take off the ground plate b 5 Remove the stopper h and then remove the control panel and ADF upper assembly 6 Remove the two screws 1 and remove the ADF lower assembly Figure 2 6 Disassembly 2 2 8 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 3 SCNT board NCU board B The SCNT board and NCU board can be replaced without removing the scanning assembly NOTE SCNT board 1 Perform Disassembly 1 and Disassembly 2 3 2 Remove the two screws a and then take off the whole plate assembly 3 Remove the three cables connected to the SCNT board 4 Remove the four screws b and remove the SCNT board c For details on ROM replacement see page 2 23 Disassembly 22 ROM replacement REFERENCE NCU board 1 Perform Disassembly 1 and Disassembly 2 3 2 Remove the two
38. line density amp Scanning speed Operation Mode Line density Motor step Scanning speed interval FAX Standard 8 dot mm x 3 85 line mm 150 dpi step 5 msec line Direct TX 203 2 dpi x 97 79 dpi 3 3 msec line Memory TX Fine 8 dot mm x 7 7 line mm 300 dpi step 3 3 msec line 203 2 dpi x 195 58 dpi Scanner Text Binary 150 dpi or less 150 dpi step 5 msec line 151 300 dpi 300 dpi step 3 3 msec line 301 600 dpi 600 dpi step 3 3 msec line Gray scale 150 dpi or less 150 dpi step 5 msec line 151 300 dpi 300 dpi step 3 3 msec line 301 600 dpi 600 dpi step 3 3 msec line Full color 150 dpi or less 150 dpi step 9 msec line 151 300 dpi 300 dpi step 9 msec line 301 600 dpi 600 dpi step 9 msec line Copy B amp W 360 dpi 600 dpi step 3 3 msec line Full color 360 dpi 600 dpi step 9 msec line Scanner gradations Grayscale 8 bit 256 gradations Color R G B 8 bits each full color capability TWAIN Yes Scanning density adjustment 3 density level Image modes Halftone PHOTO mode Halftone fax and copy 64 gradation error diffusion system UHQ Prescan Yes Scanning range Sheet dimensions W x L Maximum Minimum Thickness multiple pages MultiPASS C755 Chapter 1 General Description 8 50 x 39 3 216 mm x 1000 mm 3 5 x 1 75 88 9 mm x 44 5 mm 0 003 0 005 0 08 mm 0 13 mm 75 90 g m single page 0 003 0 017 0 08 mm 0 43 mm 75 340 g m Document lead
39. other party and have them check their fax You can try to send the document manually For an overseas call add pauses to the registered number Cause The touch tone rotary pulse setting on your fax is incorrect Solution Set your fax to the setting that matches your telephone line Cause The other party is not using a G3 machine Solution Contact the other party and have them send or receive the document using a G3 machine Cause The other party s fax is not working Solution Contact the other party and have them check their fax Cause The telephone number you dialed is busy Solution Try sending the document at a later time C INK EMPTY Cause The Cyan BJ tank in the Color or Photo BJ cartridge is empty Solution Replace the Cyan BJ tank 3 16 MultiPASS C755 Chapter 3 Maintenance amp Service CARTRIDGE JAMMED Printing position correction failed Cause Countermeasure Cause Countermeasure Carriage movement prevented by one of the following Damaged shaft Parts deformed Carriage or guide frame Insufficient grease Replace the shaft Replace the deformed parts Apply more grease Bi directional print displacement correction failed because the carriage motor is out of step or some similar reason Replace the carriage motor Home position error Cause Countermeasure Cause Countermeasure Cause Countermeasure Cause Countermeasure Cause Countermeasure Foreign b
40. pressing the Start button after the display test When the Start button is pressed all the lamps on the control panel light Check for any LED that does not light during the test b 3 Operation button test The Operation button test is selected by pressing the Start button after the LED lamp test In this test you press the button corresponding to the displayed character to put it out The table giving the correspondence between the characters and the buttons is below Character Operation button 1 Numeric buttons R Redial Pause button D Coded dial button L Color B amp W button Resolution button amp Receive Mode button C Copy button Hook button F Function button E Set button M Resume button When all the characters displayed have gone out the system next starts the one touch speed dialing button test The letters 1 are displayed on the display corresponding to one touch speed dialing buttons 01 12 Each letter displayed on the display goes out when its corresponding one touch speed dialing button is pressed In this test check for operation buttons whose corresponding character or letter does not go out when the button is pressed See page 3 30 The buttons do not work 3 69 MultiPASS C755 Chapter 3 Maintenance amp Service 6 7 OPERATION Press Start button lt HHHHHHHHHHHHHHHH H pattern displayed Press Start button 4 All LCD dots displayed Press Start button 4 LED TES
41. printer is able to be powered on the carriage lock is released However if the printer is not working normally you may need to release the carriage lock manually As illustrated in the diagram below the carriage lock can be released by removing the cartridge and pushing down on the purge unit lever and sliding the carriage to the left Figure 2 18 Carriage Lock Release 2 19 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 17 Carriage unit 1 Carry out Disassembly 4 and remove the printer 2 Loosen the two screws a and remove the carriage belt 3 Remove the two pins b 4 Remove the spring c 5 Remove the paper selector lever d 6 Remove the carriage shaft e 7 Remove the two flat cables connecting the PCNT board to the carriage 8 Remove the cable guide f 9 Remove the carriage unit g Figure 2 19 Disassembly 17 2 20 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 18 Paper feed motor 1 Perform disassembly up to Disassembly 17 2 and take off the carriage belt 2 Remove the two screws a 3 Remove the paper feed motor b Disassembly 19 Carriage motor 1 Carry out Disassembly 4 and remove the printer assembly 2 Remove the two screws c 3 Remove the carriage motor d Figure 2 20 Disassembly 18 and Disassembly 19 2 21 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 20 Ink sensor 1 Carry out Disassembly
42. screws a and then take off the whole plate assembly 3 Remove the three cables connected to the NCU board 4 Remove the three screws d and remove the NCU board e Figure 2 7 Disassembly 3 2 9 MultiPASS C755 Chapter 2 Assembly and Disassembly Caution when replacing SCNT board BB Follow the procedure given below when replacing the SCNT board NOTE a Caution before replacing After replacing the SCNT board you will need to perform an Clear operation Be sure to print out any data etc that you may need before you do the AII Clear a 1 Image data stored in image memory Caution Image data stored in the image memory will be wiped clean when the power is cut Before turning off the power be sure to output all images from the memory a 2 User reports After pressing the Function button press the Report button and then use the AV buttons to select the reports to be output a 3 Service reports After selecting service data mode press the Report button and then use the AV buttons to select the reports to be output b SCNT replacement procedure 1 Remove the old board 2 Take out the new SCNT board from its bag 3 The jumper plug JP6 on the new SCNT board is not shorted in order to prevent unnecessary battery consumption while the parts are in the warehouse Before using the SCNT board remember to short the jumper plug 4 After installing the new board re assemble the machine 5 Turn
43. separation pad shaft is coated with grease so be careful not to get it on your hands or clothes If grease has been removed apply a suitable amount Disassembly 9 White sheet unit 1 Perform Disassembly 7 and remove the operation panel 2 Remove the white sheet unit c Unhook the catch d as shown in the diagram Be careful here not to lose the spring e Figure 2 12 Disassembly 8 and Disassembly 9 2 14 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 10 Contact sensor 1 Perform Disassembly 1 and Disassembly 2 up to step 5 2 Remove the cover a and the three tabs b 3 Remove the two screws c 4 Remove the contact sensor d Handling the contact sensor Be careful not to scratch or soil the glass surface of the contact sensor Any such scratches or dirty marks may lead to image defects such as vertical streaks etc on the scanned image Caution when replacing the contact sensor When replacing the contact sensor the CS LED light on duration needs to be adjusted Refer to page 3 6 3 1 CS LED Lights on Duration Adjustment for details Disassembly 11 Document separation roller 1 Perform Disassembly 1 and Disassembly 2 up to step 5 2 Remove the cover a and the three tabs b 3 Bend the bushing with your finger and remove the separation roller and shaft together 4 Take out the separation roller e from the shaft ADF assembly BB There is
44. substances that are harmful to humans but does contain organic solvents isopropyl alcohol 67 63 0 diethylene glycol 111 46 6 glycerin 56 81 5 and ethylene glycol 107 21 1 If the ink should accidentally get into someone s eyes rinse the affected eye with plenty of clean water and seek medical attention If a large quantity of ink is accidentally swallowed seek medical advice immediately In such a case let the doctor know exactly what is written on the BJ cartridge label Conductivity of the ink The ink used in the BJ cartridge is conductive This means that if the ink leaks mechanical parts should be wiped with a dampened paper towel or similar and electrical circuits wiped with tissue paper so that all ink is removed from below the IC chips If power is switched on while ink is leaking on the electrical circuits the circuitry may short out and be damaged If ink is leaking the power must be switched off 1 4 Action in the Event of Abnormality All Clear In the event of extreme noise or shock etc in very rare cases the display may go out and all the keys become inoperable In that case perform an Clear This operation returns all values and settings to their default settings However as all settings such as received images and user data service data etc will be re initialised be sure to note down any settings that you will need to re enter later Function Data Registration
45. 08 TX RX NO CONNECTION TEL ID 01 Canon UK 02 Canon France 03 Canon USA 03 Canon USA 0123456789 m m m 2 06 17 13 09 1 06 17 13 11 Figure 3 35 Memory Clear List TX RX NO Indicates four digits of the transaction number MODE Indicates TRANSMIT or AUTO RX or B CAST Broadcast and COL Color CONNECTION TEL Number sent from the other party or number dialled PAGES Number of pages are stored in memory SET TIME Time when data is stored in memory 3 74 MultiPASS C755 Chapter 3 Maintenance amp Service 8 1 2 Service report output functions The fax outputs service data setting status past communications history reports a List of service reports The fax outputs the service reports shown below Report type Operations 1 System data list 2 System dump list 3 System data list amp System dump list Service activity report with service error code and dump list In the service mode press the Report button then select the report type and press the Set button If you set bits 0 and 1 of 1 SSSW SWO in the service mode the service error code and dump list are indicated on the activity report sending receiving 3 75 MultiPASS C755 Chapter 3 Maintenance amp Service a 1 System data list This list shows service data 1 5 7 9 setting statuses The following is a sumple list
46. 08 FAX 0123456789 Canon Inc 006 06 49 45 i 0 90 M LL 50 10 5 3 A o 12 0 13 21 Wwe 30 30 18 30 We 18 0 19 20 9 21 22 o 23 o 1 25 1 S 0 29 m o 30s j o 9 ROM VERSION USA 06 05 START DATE DATE 05 20 1998 Figure 3 37 System Data List page 5 page 6 Big START DATE records the date when the fax performs its first transmission after shipment from the factory NOTE 3 77 MultiPASS C755 Chapter 3 Maintenance amp Service a 2 System dump list This list shows the past communications statuses and error communications history The following is a sample list LTR 26400 14400 2400 TC7200 2400 ULTRA JBIG 44 gt ooooo LGL 24000 12000 JPEG 06 17 1999 13 15 FAX 0123456789 Canon Inc CLEAR DATE 06 03 1999 TX 1 A4 1 B4 0 A3 0 RX 7 4 8 B4 0 0 33600 0 31200 0 28800 0 21600 0 19200 0 16800 0 9600 0 7200 0 4800 0 14400 7 12000 1 TC9600 0 14400 0 12000 0 9600 0 7200 0 4800 0 STD 4 FINE 5 SUPER 0 MH 0 0 MMR 0 G3 0 ECM 9 PRINT 83 83 READ 44 INK ABSORBER CAPACITY SUCTION 0 000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
47. 5 Time 60 seconds after PPS MPS Transmission during ECM Tx 764 TX Exceed Retransmit Protocol after PPS EOP Transmission during ECM Tx 765 TX Exceed protocol retransmission limit due to failure to receive significant signals after PPS EOP transmission during ECM Tx 767 TX Receive DCN after PPS EOP transmission during ECM Tx 768 TX Exceed protocol retransmission limit or 5 time 60 seconds after PPS EOP transmission during ECM Tx 769 Exceed retransmit protocol after PPS EOP transmission during Tx 770 TX Exceed repeat protocol limit due to failure to receive significant signals after transmitting EOR NULL during ECM Tx 772 TX Receive DCN after EOR NULL transmission during ECM Tx 773 TX Exceed protocol retransmission limit or 5 time 60 seconds after EOR NULL transmission during ECM Tx 774 TX Receive ERR after EOR NULL transmission during ECM Tx 775 TX Exceed protocol retransmission limit due to failure to receive significant signals after EOR MPS transmission during ECM Tx 777 TX Receive DCN after EOR MPS transmission during ECM Tx 778 TX Exceed protocol retransmission limit or 5 time 60 seconds after EOR MPS transmission during ECM Tx 779 TX Receive ERR after EOR MPS transmission during ECM Tx 780 TX Exceed protocol retransmission limit due to failure to receive significant signals after EOR EOM transmission during ECM Tx 782 TX
48. 7 2 2 Test mode flowchart TEST MODE 1 D RAM 2 CS 8 PRINT 4 MODEM NCU 815 AGING TEST Y MultiPASS C755 Chapter 3 Maintenance amp Service x indicates that these items are not used in the field See Page 3 61 1 ADJ LED TIME 2 CS READ DISP LED TIME 4 REG LED TIME 815 SHADING TEST See Page 3 61 1 MONO CLR PTN1 213 CLR PTN2 COMET 5 GEAR 216 ENDURANCE 7 CHECKERS 8 Not used o BLACK See Page 3 62 1 RELAY 1 2 2 FREQ 1 7 3 Not used 4 G3 Tx 0 8 5 Tx 0 9 6 TONE Rx 7 Not used 8 V34 G3 Tx See Page 3 64 See Page 3 65 See Page 3 66 Figure 3 27 Test Mode 3 59 MultiPASS C755 Chapter 3 Maintenance amp Service 6 FACULTY TEST 1 G3 4800bps Tx 2 REGISTRATION 8 SENSOR See Page 3 67 ADF 5 Not used 6 SPEAKER 7 PANEL See Page 3 69 8 Not used 9 LINE DETECT 1 4 See Page 3 71 7 DATA SET 8 PRINTER TEST 1 INK DETECT See Page 3 72 2 CLEANING EEPROM CLEAR 4 HEAR RUN 5 Not used 6 CAP WIPE 7 EEPROM Figure 3 28 Test Mode 3 60 MultiPASS C755 Chapter 3 Maintenance amp Service 7 2 3 D RAM tests Pressing the 7 button from the test mode menu selects the D RAM tests D RAM Test 1 writes data
49. C 34 photo BJ cartridges Out of Ink Function This machine has a function which detects when ink has run out It also detects when the cartridges of machines equipped with color communications are out of ink The presence absence of ink in the ink chamber is detected by reflecting ink sensor Copy Function This machine can be used as a 360dpi x 360 dpi high resolution full color copier With a monochrome document including half tone up to 99 pages can be copied at one time at the speed of a maximum of 3 pages minute Full Color amp 256 Gradation Grayscale Scanner Using graphics or OCR software which conforms to the TWAIN standard full color and 256 gradation grayscale images with a quality of 30dpi 600 dpi can be read into a computer Reading in can be done at a resolution of 300dpi and can be enhanced to 600dpi using the included MultiPASS Suite PC Fax By connecting this machine to a computer a fax can be transmitted from the included MultiPASS Suite or from a Windows application and a received image can be saved to the computer as is without printing it out 1 1 MultiPASS C755 Chapter 1 General Description 2 SPECIFICATIONS 2 1 General Specification Type Desktop Body colour Art gray Power source 98 132V AC 48 62 Hz Power consumption Standby 6 0 W Max 44 9 W when 100 black copy Usage environment 50 0 F 90 5 F 10 C 32 5 C 20 85 RH 570 760 mmHg 760 1013 hPa Horizon
50. Chapter 3 Maintenance amp Service O o I O IO O e 1 O o IO l OO 1 Error management Not used Echo solution setting Communication trouble solution settings Standard function DIS signal setting Scan condition settings Not used Not used Communications result display function settings Not used Not used Page timer settings Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Report display function settings Transmission function settings Not used V 8 V 34 protocol settings Not used Not used Figure 3 18 Service Data page 1 The switches marked are not used Do not change their settings 3 45 MultiPASS C755 Chapter 3 Maintenance amp Service 2 MENU 01 Not used Menu switch settings 02 Not used 03 Not used 04 Not used 05 ON NL equalizer setting OFF 06 DIAL Line monitor setting SERVICEMAN OFF 07 10 10dBm Transmission level setting 8 15 08 3429 baud V 34 Baud rate 3200 r 3000 m 2800 2743 2400 09 33 6 Kbps V 34 Transmission speed 2 4 1 14 10 50 Frequency of pseudo ring signal 25 Hz 17 11 Items 11 to 20 Not used T 20 Y Figures in boldface indicate the default setting Figure 3 19 Service Data page 2 No 01 to 04 11 to 20
51. Conditions Necessary for Color Reception User data types of installed cartridges etc Determine whether or not this machine can receive in color as a transmitting machine A necessary condition is that COLOR RX be set to ON Condition 1 With COLOR RX ON and MEMORY RX OFF Receives in color when printing can be done with a BC 33 cartridge installed Color reception cannot be done if a cartridge other than a BC 33 is installed or if a no color ink error has been detected etc Condition 2 With COLOR RX ON MEMORY RX ON If memory reception is possible memory reception can be done in color regardless of the type of cartridge installed BJ When the settings in MultiPASS suite are set to forward received data to a PC memory reception can be done even if MEMORY RX is OFF NOTE Forced printing using a cartridge other than a BC 33 BJ cartridge BIB Images received by color transmission cannot be automatically printed with a BJ cartridge other than the BC 33 If a cartridge other than the BC 33 is installed NOTE CHANGE BC 33 will be displayed and memory reception will be done With this machine color images received by memory reception may be output according to the user operation Output of images is done by choosing the desired TX RX No from the Memory reference functions PRINT DOCUMENT menu 3 41 MultiPASS C755 Chapter 3 Maintenance amp Service 5 6 Specifications for Color Communications The operations for color co
52. Description 1 FEATURES 1 1 Overview This product is a G3 transreceiving facsimile based on the ITU T recommendations It can be used in telephone networks This mark indicates a new function Picture Quality Color Printer High quality printing can be accomplished with the Canon Bubble Jet BJ method using the maximum 1440dpi x 720dpi resolution Various kinds of media can be printed with the high speed of a maximum 8 7 pages per minute The printing paper tray can hold up to 100 sheets of plain paper 50 sheets of OHP film or 10 back print films or envelopes Plain paper fax which can transmit receive in color Conforming to ITU T recommendations this fax is able to transmit receive in color Due to containing extremely high speed 33 6kbps modems transmission time can be shortened Pictures and photographs can both be send and received clearly by UHQ Ultra High quality Canon s vivid image processing technology Up to 20 letter or A4 size sheets or up to 10 legal size sheets can be set in the ADF 12 one touch dial entries and 100 speed dial entries can be registered and group dial and broadcasting transmission can also be done When paper and ink run out the data is saved to memory so there is no worry When a external phone is attached fax communication and normal telephone reception are possible due to DRPD service and FAX TEL switching BJ Cartridge Printing quality superior to photos is produced by use of BC 30 and BC 33 B
53. FF is selected the receiver does not fall back 2 MENU No Function Selection range Default setting 08 V 34 max baud rate 2400 3429 3429 3429 baud 09 V 34 max transmission speed 2400 33600 33600 33600 bps No 08 Select the maximum baud rate for V 34 transmission 3429 3200 3000 2800 2743 and 2400 B This model cannot use 2743 baud due to its modem specificarion If it is set to 2743 baud the maximum baud rate is 2400 baud NOTE No 09 Select the maximum transmission speed for V 34 transmission 2400 to 33600 bps 2400 1 lt n lt 14 3 54 MultiPASS C755 Chapter 3 Maintenance amp Service 3 NUMERIC PARAM numeric parameter settings No Function Selecting range Default setting 10 TO Timer 07 9999 5500 55 second 11 T1 Timer Rx 07 9999 3500 35 second 13 Maximum time to receive 500 3000 1300 13 second one line of image data Parameter 10 The wait time after transmission of a dialing signal ends until a significant signal is detected in transmission was set as T1 timer with parameter 10 However ITU T recommends that it should be set as TO timer so parameter 10 has been renamed to TO timer and the default time out time has been changed from 35 to 55 seconds BJ The T1 timer for the transmitter wait time after a CED V21 flag or ANSam significant signal is detected until the next significant signal is detected is fixed at 35 seconds NOTE Parameter 11 Set the
54. GAIN IN B W 085 Cause You tried faxing a color document to a machine that does not support color faxing Solution 1 Try sending again in black amp white 2 Check the received fax machine s setting for color faxing is available WAIT COOLING Cause The BJ cartridge is hot Solution Wait until the message disappears Y INK EMPTY Cause The Yellow BJ tank in the Color or Photo BJ cartridge is empty Solution Replace the Yellow BJ tank 3 21 MultiPASS C755 Chapter 3 Maintenance amp Service 4 2 2 Error codes a Service error code output When service data 1 SSSW SWO bit 0 is set to 1 then service error codes are printed on the activity management reports reception result reports and error transmission reports when communication ends in an error Also the following is displayed when an error occurs TX RX No 5001 Display repeated START AGAIN 106 Figure 3 10 Service Error Code Display b Error code countermeasures From item c all the error codes which the unit can display are listed The separate G3 Facsimile Error Code List Rev 1 does not specify the countermeasures for resolvable error codes Also refer to this list when an error code appears The G3 Facsimile Error Code List Rev 1 does not specify countermeasures for all error codes The countermeasures that are specified in the G3 Facsimile Error Code List Rev 1 are included here as specific countermeasures for your reference
55. GUIDES Keep the document in position when being scanned Adjust to the width of the document HANDLE Opens the printer cover OPERATION PANEL Controls the MultiPASS DOCUMENT TRAY When open holds scanned documents as they exit the MultiPASS When closed serves as a cover for the operation panel PAPER THICKNESS LEVER Adjusts the gap between the print head and the print media to suit the print media s thickness OUTPUT TRAY Holds printed pages as they exit the MultiPASS Figure 1 5 External View 1 1 12 MultiPASS C755 Chapter 1 General Description Back View PARALLEL INTERFACE PORT USB PORT TELEPHONE ANSWERING MACHINE DATA MODEM JACK TELEPHONE LINE JACK POWER CORD CONNECTOR Inside View PRINTER COVER CARTRIDGE HOLDER Figure 1 6 External View 2 MultiPASS C755 Chapter 1 General Description 3 2 Operation Panel Operation Panel Numeric Buttons Document Feed Lever Enter numbers when Sets the ADF to automatic document feed for feeding dialing or registering multipage documents or to manual document feed for fax telephone numbers feeding single sheets Also enter characters when registering names Dial fax tel speed dial gt ies Q c A gt eooo O o t 2j lt 2 9 Start Tone B LCD Displays messages and prompts during op
56. IC is backed up by lithium battery and counts the date and time 3 85 MultiPASS C755 Chapter 3 Maintenance amp Service a 4 Main ROM 1C201 This 8 Mbit ROM contains the control programs e g operation panel scanner and communications section etc for this fax a 5 SRAM IC 202 This 256 Kbit SRAM is backed up by lithium battery SRAM holds data registered for system control and communications management information Also SRAM stores contact sensor LED light on time data a 6 DRAM IC 203 This 64Mbit DRAM is used as memory for storing image data and as an MPU work area a 7 USB Controller IC 901 USB interface control function b Communication control section on Modem board b 1 Modem IC IC 701 A Conexant FM336 PLCC type is used as the modem IC The MODEM 1 carries out G3 modulation conforming to ITU T standards V 34 V 29 V 27ter V 21 V 17 and V 8 on transmitted data received from the MPU during transmission During reception the MODEM 1 carries out G3 modulation on received signals from the telephone line according to the same standards c Document scanning section C 1 System controller IC IC 301 The system controller IC include image processing function UHQ are as follows A D conversion Input signals from the contact sensor are A D converted Generation of shading data RGB color amp Black and white ABC Auto Background Control Sets the slice level for each scan line Edge enhan
57. MultiPASS C755 SERVICE MANUAL Canon I MEANING OF MARKS The marks used in this manual have the following meanings Mark Meaning NOTE REFERENCE States a precaution to be taken to prevent danger to personnel damage to the product or damage to electronic components by discharge of static electricity for example States a precaution to be taken to prevent damage to electronic components by electrostatic discharge Informs you of fire related cautions Informs you that the plug must be removed from the power outlet before starting an operation Gives useful information to understand descriptions Indicates sections to be read to obtain more detailed information ll ABOUT THIS MANUAL This manual is divided into five parts and contains information required for servicing the product Each of the above parts is further divided into the following four chapters Chapter 1 General Description This part explains product specifications and the how to service the unit safely It is very important so please read it Chapter 2 Assembly and Disassembly This part explains the assembly and disassembly of the product Chapter 3 Maintenance and Service This part explains how to maintain the products for adjustment and troubleshooting and service operations and service switches Chapter 4 Appendix This part explains the informations of the optional products and user data flow For more details of
58. ON REDUCE DIMENSION VERTICAL ONLY OFF HORIZ amp VERTICAL PAPER SIZE LTR LGL A4 BOTTOM MARGIN NORMAL SMALLER PHOTO INK PRINT ON OFF Figure 4 3 User Menu Settings 3 4 4 3 MultiPASS C755 Chapter 4 Appendix L 6 SYSTEM SETTINGS DATE SETUP r DISPLAY LANGUAGE y r TX START SPEED RX START SPEED MM DD YYYY DD MM YYYY YYYY MM DD ENGLISH FRENCH SPANISH 33600 bps 14400 bps 9600 bps 7200 bps 4800 bps 2400 bps 33600 bps 14400 bps 9600 bps 7200 bps 4800 bps 2400 bps TEL REGISTRATION 1 TOUCH SPD DIAL 01 12 TELEPONE NUMBER NAME CODED SPEED DIAL k00 99 7 TELEPHONE NUMBER GROUP DIAL NAME 01 12 or 00 99 Figure 4 4 User Menu Settings 4 4 1 2 User Data Flow by MultiPASS Suite Please see the MultiPASS Suite User s Guide 4 4
59. REPORT 8 1 Report Output Function 8 1 1 User report output functions The fax can output user reports manually by user operation or automatically according to user data settings a Manual output of reports by user operation Report type Operations SPEED DIAL LIST One touch dial list Press Function button press Report button then select the report type and press Set button Document memory list Activity Report b Reports output automatically by user data settings Each report written below can be automatically output by specifying REPORT SETTINGS in user data Transmission TX reports Error TX report TX report TX report with first page Reception RX reports Error RX report RX report Multi Transaction TX RX report Activity report ROM Version display BB The ROM version is printed on the top left hand side of the User s data list Please refer to this when troubleshooting NOTE example USA XX XX X XX Printer ROM version MAIN ROM version 3 73 MultiPASS C755 Chapter 3 Maintenance amp Service c Reports output automatically Memory clear report The fax automatically outputs a memory clear report when the power is turned on after a power cut 06 17 1999 13 13 FAX 1234567890 Canon Inc 001 at chs oh ah abe cb tek LIII MEMORY CLEAR REPORT DEEE EEEE me MEMORY FILES DELETED SET TIME 1 06 17 13
60. Since the facsimile must transmit picture information a transmitter a receiver and telephone lines are required for this purpose Transmissions may cause problems if one or more of the three is poor Communication trouble FAX FAX Your d IN Communication customer s companion machine machine Figure 3 13 Communication Trouble To process communication problems first of all it is necessary to narrow down the cause of the problem Thus the procedures appearing below must be checked accordingly Does an error appear on the display Errors show on the display error massage page 3 16 error code page 3 22 Is copying General error being done Page 3 30 Do copying lt 15 picture OK Printing problem Page 3 31 Communication problems exist Carry out the procedures on the next page Scanning problem Page 3 33 Figure 3 14 Procedures for Initial Identification of Trouble 3 35 MultiPASS C755 Chapter 3 Maintenance amp Service 4 4 2 Procedures for processing communication problems If the problem proves to be communication trouble deal with it according to the following procedures 1 Study the conditions at the time of trouble as closely as possible Record or keep the items listed below a Operations at the time of trouble r Document number transmission mode error occurrence timing call set up method auto dialing etc b Sample of defective picture
61. T All LED lamps light up Press Start button 4 When a button is pressed the corresponding character goes out MN A Oo N When the entire display has gone out When a one touch speed dialing RDL amp COFEM key is pressed the corresponding letter goes out abcdefghijkl OK tt Press the STOP button to end the test Figure 3 33 Operation Panel 3 0 MultiPASS C755 Chapter 3 Maintenance amp Service C Line signal reception test The line detect test menu is selected by pressing the 9 button from the faculty test menu This test checks the operation of the NCU signal sensor and frequency counter In Menu 1 the CI status can be detected and in Menu 2 the frequency can be detected at changing detection levels In this way you can check if the NCU board is correctly detecting signals C 1 Test Menu 1 Test Menu 1 is selected by pressing the 1 button from the Line Detect menu When CI and CNG are detected from the modular jack the display changes from OFF to ON and the received frequency is displayed 2 Test Menu 2 Test Menu 2 is selected by pressing the 2 button from the Line Detect menu When a tonal frequency is detected from the modular jack the display changes from OFF to ON and the received frequency is displayed The frequency detection level can be set with the numeric buttons Numeric button Detection level dBm 0 26 00 10
62. T NO OFF PRINT ERROR ONLY OUTPUT YES OUTPUT NO ACTIVITY REPORT AUTO PRINT E ON OFF ECM TX ON OFF H MID PAUSE SET 02 SEC 01 15 SEC AUTO REDIAL ON REDIALTIMES 02 TIMES 01 10 TIMES OFF REDIAL INTERVAL 02 MIN 02 99 MIN TIME OUT ON OFF COLOR DIRECT TX OFF ON 4 RX SETTINGS ON OFF MODE FAX MODE DRPD NORMAL RING UNIT TELEPHONE UNIT NAME RX MODE TEL FAX FAX TEL AUTO SW DOUBLE RING UNIT TELEPHONE R UNIT NAME RX MODE TEL E FAX FAX TEL AUTO SW SHORT SHORTLONG UNIT TELEPHONE UNIT NAME RX MODE TEL FAX FAX TEL AUTO SW SHORTLONG SHORT UNIT TELEPHONE H UNIT NAME RX MODE TEL FAX FAX TEL AUTO SW OTHER RING TYPE UNIT TELEPHONE UNIT NAME RX MODE TEL FAX Y Y Y FAX TEL AUTO SW Figure 4 2 User Menu Settings 2 4 4 2 MultiPASS C755 Chapter 4 Appendix FAX TEL AUTO SW RING START TIME 08 SEC 00 30 SEC F T TIME 15SEC 10 45 SEC DEFAULT ACTION RECEIVE DISCONNECT INCOMING RING OFF ON 02TIMES 01 99 TIMES MAN AUTO SWITCH OFF ON 15SEC 01 99 SEC REMOTE RX ON 25 00 99 OFF MEMORY RX ON OFF COLOR RX ON OFF 5 PRINTER SETTINGS 4 RX REDUCTION r
63. an check the status of each sensor of this fax in item 1 on the display You can also check if sensors that use actuators and microswitches are operating correctly by moving the actuator or microswitch See page 3 33 Faulty scanner unit s sensors The sensor tests cannot be used to test all of the sensors The following sensors cannot be BB tested with the sensor tests NOTE Home position sensor pickup roller sensor cover sensor and ink detection Sensor If any of these sensor are faulty an error message or service error code will appear to indicate the faulty sensor 3 67 MultiPASS C755 Chapter 3 Maintenance amp Service 6 3 SENSOR Pressing the 1 key Alternately displayed lt gt DS Document sensor DES Document edge sensor on off decument no document Figure 3 32 Sensor Tests 3 68 MultiPASS C755 Chapter 3 Maintenance amp Service b Operation panel tests The operation panel test is selected by pressing the 7 button from the faculty test menu In this test check that the display LED lamps and buttons on the control panel are operating correctly b 1 Display test Pressing the Start button from the control panel menu is displayed 16 characters by 1 line on the display The next time the Start button is pressed all the LCD dots on the display are displayed Check for any LCD dots in the display that are not displayed b 2 LED lamp test The LED lamp test is selected by
64. ansmision test menu is selected by pressing the 8 key from the MODEM NCU test menu The V 34 G3 signals below are sent from the modem using the modular jack and the speaker by pressing the start key The Baud rate can be changed with the numeric keys and the Speed can be changed with the search keys Numeric key Baud rate 0 3429 baud 3200 baud 3000 baud 2800 baud 27743 baud Not used 2400 baud RU Search key Speed 2400 bps 2 4 kbps 4800 bps 4 8 kbps 7200 bps 7 2 kbps A 9600 bps 9 6 kbps 12000 bps 12 0 kbps 14400 bps 14 4 kbps 16800 bps 16 8 kbps 19200 bps 19 2 kbps 21600 bps 21 6 kbps 24000 bps 24 0 kbps V 26400 bps 26 4 kbps 28800 bps 28 8 kbps 31200 bps 31 2 kbps 33600 bps 33 6 kbps BB The transmission level for each frequency follows the service data NOTE 3 66 MultiPASS C755 Chapter 3 Maintenance amp Service 7 2 7 Faculty tests The faculty tests are selected by pressing the 6 button from the test mode menu These tests test the following faculties of this fax Test type Overview Sensor tests Test whether the sensors are operating correctly Operation panel test Tests whether the button switches on the control panel are operating correctly Line signal reception test Tests whether the NCU board signal sensor and frequency counter are operating correctly a Sensor tests The sensor test is selected by pressing the 3 button from the faculty test menu In this test you c
65. are not used Do not change their settings 3 46 MultiPASS C755 Chapter 3 Maintenance amp Service 1 20 5500 55 seconds 0 9999 3 NUMERIC Param Numeric parameter settings Default 01 0 02 10 10 03 15 15 lines 04 12 12 times 05 4 06 4 07 0 08 0 09 6 6 digits 10 11 12 0 13 14 0 15 120 1200 ms 16 4 4 seconds 17 100 1000 ms 18 0 0 ms 19 200 2000 ms 20 100 1000 ms 21 0 0ms 22 200 2000 ms 23 44 24 20 25 60 600 ms 26 44 i 27 0 28 0 29 0 30 0 3500 35 seconds 0 9999 1320 13 seconds 0 9999 Do not change Not used RTN signal transmission condition 1 RTN signal transmission condition 2 RTN signal transmission condition 3 Not used Not used Not used Not used The number of digits in telephone number compared against TSI signal to be matched for restricted receiving function Line connection detection time TO timer T1 Timer Rx Not used Maximum time to receive oneline of image data Not used Hooking detection time Pseudo RBT transmission from CML on time until start Pseudo RBT signal pattern On time Pseudo RBT signal pattern Off time short Pseudo RBT signal pattern Off time long Pseudo ring pattern On time setting Pseudo ring pattern Off tim
66. bly Work Flow 2 3 Disassembly Procedure Chapter 3 Maintenance amp Service 1 MAINTENANCE LIST 1 1 Consumables 1 2 Cleaning 1 3 Periodic Inspection 1 4 Periodic Replacement Parts 1 5 Adjustment Items 1 6 General Tools 1 7 Special Tools 2 HOW TO CLEAN PARTS 2 1 Main Unit Outer Covers 2 2 Separation Roller 3 3 3 3 3 3 3 3 3 5 3 3 11 3 14 3 14 3 16 3 16 3 22 3 30 3 30 3 31 3 33 3 35 3 35 3 36 3 39 3 39 3 39 3 39 3 40 3 40 3 40 3 40 3 40 3 40 3 41 3 41 3 42 3 43 3 43 3 43 3 43 44 3 45 3 52 3 53 Qo O O 2 3 2 4 2 5 2 6 2 7 3 1 3 2 3 3 3 4 3 5 4 1 4 2 4 3 4 4 5 1 5 2 5 3 5 4 5 5 5 6 6 1 6 2 Document Feed Eject Roller Separation Guide Scanning Glass Contact Sensor White Sheet Printer Platen ADJUSTMENT CS LED Lights on Duration Adjustment When Adjustment of the Print Head Position is Required When the Carriage Belt Tension Needs Adjustment When the ASF Gear Initial Position Adjustment is Required When the Head Gap Needs Adjustment TROUBLESHOOTING Troubleshooting Index Errors Shown on the Display 4 2 1 User error message 4 2 2 Error codes Errors not Shown on the Display 4 3 1 General errors 4 3 2 Printing problems 4 3 8 Scanning problems Processing Communication Problems 4 4 1 Initial identification of problems 4 4 2 Procedures for processing communication problems
67. buffer and working area d 4 EEPROM IC 301 Controlled by the printer controller the 2 Kbit EEPROM Electrically Erasable and Programmable ROM stores various printer emulation settings and the waste ink amount discharged to the waste ink absorber 3 87 MultiPASS C755 Chapter 3 Maintenance amp Service This page intentionally left blank 3 88 MultiPASS C755 Chapter 4 Appendix 1 USER DATA FLOW 1 1 User Data Flow by Operation Panel Press the Function button then press the Data Registration button Function button Data Registration button DATA REGISTRATION 1 USER SETTINGS DATE amp TIME UNIT TELEPHONE UNIT NAME TXTERMINALID TTIPOSTION OUTSIDE IMAGE TELEPHONE MARK FAX INSIDE IMAGE TEL SCAN CONTRAST p STANDARD DARKER LIGHTER OFF HOOK ALARM ON OFF VOLUME CONTROL CALLING VOLUME 1 rm 3 KEYPAD VOLUME 0 1 2 3 H ALARM VOLUME 0 2 3 LINE MONITOR VOL 0 mi RXCALLLEVEL HIGH 2 STANDARD cd TEL LINE TYPE TOUCH TONE ROTARY PULSE Figure 4 1 User Menu Settings 1 4 2 REPORT SETTINGS r TX REPORT x RX REPORT a 3 TX SETTINGS MultiPASS C755 Chapter 4 Appendix PRINT ERROR ONLY PRINT WITH IMAGE ON OFF OUTPUT YES PRINT WITH IMAGE ON OUTPU
68. ccur Check the pattern for the following E Check for any vertical or horizontal white stripes on the black squares Also check that all the squares have straight edges on all four sides Figure 3 30 Print Test Pattern Check BiB If the print test is normal make a copy of a document If the copy is faulty the reading section is faulty NOTE Please do not select the following menus 3 1 MONO PTN 3 2 CLR PTN 3 3 CLR PTN2 If a mistake is made and these menus are selected the value of 7 PRINTER 5 INK ABS CAPA will be reset to 0 so it will be necessary to re register Check the value of LostInkCount printed on the top of each test pattern and register this value in 7 PRINTER 5 INK ABS CAPA If the absorption amount has been forgotten replace the waste ink absorber and set to 0 3 62 MultiPASS C755 Chapter 3 Maintenance amp Service Figure 3 31 Print Pattern Sample 3 63 MultiPASS C755 Chapter 3 Maintenance amp Service 7 2 6 Modem and NCU tests These tests test modem and NCU transmission and reception The modem tests check whether signals are sent correctly from the modem by comparing the sound of the signals from the speaker with the sounds from a normal modem Also you check on the display whether or not the modem correctly detected received tone signals and DTMF signals End this test by pressing the STOP button Modem test type Overview Frequency test
69. ceived during Tx 106 RX Fail to receive protocol for 6 seconds when waiting for protocol during Rx 107 RX Fall back failure on Tx side during Rx 109 TX Receive Signals other than DIS DTC FTT CFR or CRP after DCS Tx and exceed the number of protocol re transmissions during Tx 111 TX RX Memory error 114 RX RTN Transmission during reception 200 RX Fail to detect picture Rx carrier for 5 seconds during Rx 201 TX RX DCN received other than normal binary protocol 204 TX Receive DTC without Tx data 220 TX RX System error main program runaway 18224 TX RX Abnormal protocol during G3 communication 229 RX Recording unit locked for 1 minute 232 TX ENCODE control unit malfunction 237 RX DECODE control unit malfunction 238 RX PRINT control unit malfunction 261 TX RX System error between MODEM and SCNT 280 TX Excessive repeat protocol command during Tx 28 TX Excessive repeat protocol command during Tx 282 Excessive repeat protocol during Tx 3 24 new new new new new new new MultiPASS C755 Chapter 3 Maintenance amp Service No Tx or Rx Definition 283 TX Excessive repeat protocol during Tx 284 DCN reception after TCF transmission 285 DCN reception after transmission 286 DCN reception after EOM transmission 287 DCN reception after MPS transmissio
70. cement processing Binaryzation processing Halftone processing Contact sensor LED control Document feed motor control Also the system controller IC include color image processing function are as follows Color image processing The RGB data is converted into CMYK print data 3 86 MultiPASS C755 Chapter 3 Maintenance amp Service d Printer control section d 1 MPU amp Printer controller IC 101 The main functions of the printer controller are as follows Bi centronics interface EEP ROM control DRAM control Buffer control Print head control Also the printer controller include MPU function are as follows 16 bit CPU 21 bit address bus 16 bit data bus Carriage motor Paper feed motor control The stepping motor controller outputs the carriage motor s single and two phase exciter drive signal and paper feed motor s two phase drive signal The stepping motor controller switches the carriage motor with the 5 step peak current value for optimum driving The stepping motor controller outputs the switching control signal to the carriage motor driver Detection of BJ head temperature Detection of printer s internal temperature Detection of Home position sensor Paper edge sensor and Pickup roller sensor Cartridge detection d 2 ROM IC 202 The 8 Mbit control CG ROM contains the program and bitmap font data for printer control d 3 DRAM IC 102 16 Mbit DRAM is used as the print
71. d When an error indicating no color ink appears a BW FAX is not automatically output even if there is black ink available When the ECM setting is OFF color reception is not performed When using a BJ Cartridge BC 34 Photo When PHOTO INK PRINT is set to off autmatic output will not occur whether the text is BW or color Other Specifications With framed tables text monochrome illustrations etc And sharp contrast artificial images a small amount of noise may occur in the image border Color transmission are not supported in V3 20 of MultiPASS suite Because RX REDUCTION becomes ON when the default setting BOTTOM MARGIN is set to NORMAL the scanning width is reduced 3 42 MultiPASS C755 Chapter 3 Maintenance amp Service 6 SERVICE SWITCHES 6 1 Hardware Switches There is no service hardware switch on the Circuit board 6 2 Service Data Setting Service data can be checked and changed with items on display menus The default values of the SSSW parameters available in this fax machine are shown in this Chapter 6 2 3 Service data setting in this manual The SSSW parameters given in the previous product specific manual are explained in the G3 Facsimile Service Data Handbook The new switches for this model are described in this Chapter 6 2 3 Service data setting 6 2 1 Service data overview The service data menu items are divided into the following nine blocks 1 SSSW Service soft switch settings Thes
72. d a T1 time out occurred during V 34 reception 674 The protocol did not move from phase 3 to phase 4 and a time out occurred during V 34 transmission 675 RX The protocol did not move from phase 3 to phase 4 and a T1 time out occurred during V 34 reception 3 25 MultiPASS C755 Chapter 3 Maintenance amp Service ECM mode error codes No Tx or Rx Definition 750 TX Exceed repeat protocol due to failure to receive significant signals after transmitting PPS NULL during ECM Tx 752 TX Receive DCN after PPS NULL transmission during ECM Tx 753 TX Exceed protocol retransmission limit or 5 time 60 seconds after PPS NULL transmission during ECM Tx 754 TX Exceed retransmit protocol after PPS NULL transmission during ECM Tx 755 TX Exceed protocol retransmission limit due to failure to receive significant signals after PPS MPS transmission during ECM Tx during ECM Tx 757 TX Receive DCN after PPS MPS Transmission during ECM Tx 758 TX Exceed Protocol Retransmission Limit or T5 Time 60 seconds after PPS MPS Transmission during ECM Tx 759 TX Exceed Retransmit Protocol after PPS MPS Transmission during ECM Tx 760 TX Exceed Protocol Retransmission Limit Due to Failure to Receive Significant Signals after PPS EOM Transmission during ECM Tx 762 TX Receive DCN after PPS EOM Transmission during ECM Tx 763 TX Exceed Protocol Retransmission Limit or T
73. e short Pseudo ring pattern Off time long FAX TEL switching function signal detection level Pseudo RBT signal transmission level Answering machine connection function signal detection time Answering machine connection function no sound detection level Not used Not used Not used Not used Figure 3 20 Service Data page 3 No 01 05 to 08 12 14 and 27 to 30 are not used Do not change their settings 3 47 MultiPASS C755 Chapter 3 Maintenance amp Service B 3 NUMERIC PARAM Numeric parameter settings B The relationship between the settings and the detection levels is as follows Parameter 24 NOTE 0 Not used 1 Not used 2 Not used 3 Not used 4 Not used 5 8dBm 6 9dBm 7 10 dBm 8 11 dBm 9 12 dBm 10 13dBm 11 I4dBm 12 15dBm 13 16dBm_ 14 17dBm 15 18dBm 16 19dBm 17 20dBm 18 21 dBm 19 22dBm 20 23 dBm 3 48 MultiPASS C755 Chapter 3 Maintenance amp Service 4 NCU TONE PULSE NCU settings DIAL TONE 2nd DIAL TONE BUSY TONE 0 BUSY TONE 1 REORDER TONE MULTI AUTO RX CNG DETECT SPECIAL RKEY PBX DIAL TONE PBX BUSY TONE 5 TYPE U S A Type setting 6 GENESIS Bit SW Genesis function settings SLICE GAMMA Figure 3 21 Service Data page 4 4 NCU NCU settings The values of these items are all set to match a specific nation s communications
74. e correct paper size in the PRINTER SETTING PAPER SIZE CHECK PRINTER 332 337 345 346 and 348 Cause The printer s internal unit has malfunctioned Solution 1 Remove the jammed paper Check the paper end sensor is OFF 2 Press Resume button 3 Reinstall the Cartridge 4 Turn the power off and on 5 Set the service data 1 SSSW SWO bit 0 to 1 and check the service code Refer to the countermeasures for that error code CLEAR PAPER JAM 009 Cause Paper jam Solution Clear the paper jam and press the Resume button CONVERT CLR gt B amp W Cause The unit is confirming that it is all right to convent a color document to black amp white and print it with the Black BJ cartridge Solution Press to convent the color document to black amp white and print or press 0 cancel DATA ERROR Cause The registration data in the SRAM was destroyed and a checksum error occurred due to a dead lithium battery or SRAM failure Solutions 1 Press the Set button and turn the power off and on again 2 Replace the lithium battery 3 Replace the SPCNT board 3 18 MultiPASS C755 Chapter 3 Maintenance amp Service DOC TOO LONG 003 Cause The document is longer than 39 4 1m Solution Use a copy machine to make a reduced copy of the document Then send again Cause It took more than 32 minutes to send or copy a document It took more than 32 minutes to receive a document
75. e setting items are for basic fax service functions such as error management echo countermeasures and communication trouble countermeasures 2 MENU MENU switch settings These setting items are for functions required during installation such as NL equalizer and transmission levels 3 NUMERIC Param NUMERIC parameter settings These setting items are for inputting numeric parameters such as the various conditions for the FAX TEL switching function 4 NCU NCU seitings These setting items are for telephone network control functions such as the selection signal transmission conditions and the detection conditions for the control signals sent from the exchange 5 TYPE TYPE setting The type setting makes the service data conform to a specific country communications standards There is only one setting item in this block 6 GENESIS UHQ function setting These setting items are for scanned image processing such as edge enhancement and error diffusion processing 7 PRINTER PRINTER function settings These setting items are for basic printer service functions such as the reception picture reduction conditions Also there is an item for resetting the printer section without switching the power off on 3 43 MultiPASS C755 Chapter 3 Maintenance amp Service 8 CLEAR Data initialization mode Various data are initialized by selecting one of these setting items There is a setting item for checking inputting the total number o
76. ee effective bits and their default values The meanings functions of the bits are not described in this manual except the new switches added to this model See the G3 Facsimile Service Data Handbook supplied separately for details of the switches Below are examples showing how to read bit switch tables Indicates that the setting is Indicates that the setting is 1 Figures in boldface are default settings Bit Function 1 0 Service error code Output Not Output 1 Error dump list Output Not Output 2 Not used 3 Copy function No Yes 4 800 series service error code Output Not Output 5 Not used 6 Not used 7 User setting restriction Setting possible Setting restricted Figure 3 25 How to Read Bit Switch Tables 3 52 MultiPASS C755 Chapter 3 Maintenance amp Service 6 2 5 New SSSWs parameters added to this model 1 SSSW service soft switch setting SW01 service soft switch 01 error management Bit Function 1 0 0 Service error code Output Not output 1 Error dump list Output Not output 2 Not used 3 Copy function No Yes 4 New 300 series service error code Output Not output 5 Not used 6 Not used 7 User setting restriction Setting possible Setting restricted Bit 4 Even when is set to Not output you can select whether or not to output 300 series Service Error Codes caused by hardware malfunction When Output is selected 300 series Service Er
77. er 2 Assembly and Disassembly 1 2 General Cautions Damage due to electrostatic discharge This machine contains contact sensors and printed circuit boards that use ROMs RAMS custom chips and other electronic components that are vulnerable to damage by electrostatic discharge Be careful to avoid any damage from electrostatic discharge when conducting service that requires disassembly Static electricity warning Electrostatic discharge can destroy electronic components and alter electrical characteristics Plastic tools and even your hands if they are not earthed contain sufficient static electricity to damage electronic components The following materials may be used as countermeasures against electrostatic discharge an earthed conductive mat an earthed wrist strap crocodile clips for the purpose of grounding metallic parts of the main unit For service conducted on the user s premises etc where such countermeasure materials are not available the following countermeasures may be employed Use anti static bags for the storage and carrying of PCBs and electrical elements Avoid silk and polyester clothing and leather soled shoes favouring instead cotton clothes and rubber soled shoes Avoid working in a carpeted area Before beginning the work touch the grounded earth terminals of the main unit in order to discharge any static electricity Use a wrist strap and earth the metal parts of the main unit
78. eration Also displays selections text numbers and names when registering information E Redial Pause Button Redials the last number that was dialed with the numeric buttons Also enters pauses between or after the fax telephone number when dialing or registering numbers Coded Dial Button Press this button and a two digit code to dial a pre registered fax telephone number or group Color B amp W Button Sets the unit for color or black amp white transmission or copying For color transmission or color copying press this button to turn on its light Hook Button Engages or disengages the telephone line Redial Pause Coded Dial B amp W Receive Mode O O lt OO Image Quality c c D Cleaning Clear One Touch Speed Dialing Special Function Buttons ephone numbers pre registered for one touch ing Also used to perform special functions 01 02 Data Registration A 04 05 lt Memory Reference Space Function Set E Alarm Light Flashes when an error occurs or when the MultiPASS is out of paper or ink Receive Mode Button Selects the receive mode Copy Button Sets the MultiPASS to make copies Image Quality Button Selects the resolution setting the MultiPASS uses for the document you are sending Also selects the image quality setting resolution and paper type for the document you are copying Bi Stop Button Cancels sending receivi
79. ete For details see User s manual RESULT display with number of pages for which transmission was fault and service error code MAKER CODE Maker code 1000 1000 Indicates a Canon fax lower nibble upper nibble RCV V 8 FRAME Received V 8 protocol signal SYMBOL RATE Symbol rate used for the primary channel TX LVL REDUCTION 0 Fixed ERR ABCODE Code output by the modem when an error occurred Not used in the field ERR SECTXB Transmit status of the modem when an error occurred Not used in the field ERR SECRXB Received status of the modem when an error occurred Not used in the field RX TX Received transmitted protocol signal bit 1 to bit 96 of received transmitted DIS DCS or DTS Bj The V 8 V 34 related items RCV V 8 FRAME to ERR SECRXB are not printed on the Notmal G3 Service Activity Report NOTE 3 81 MultiPASS C755 Chapter 3 Maintenance amp Service 06 17 1999 12 58 FAX 3364 3364 001 RX REPORT INCOMPLETE RECEPTION TX RX NO 5028 CONNECTION TEL 3363 3363 CONNECTION TD canon ST TIME 06 17 12 57 USAGE T 00 23 PGS 2 em RESULT NG 2201 START TIME 06 17 12 57 OTHER PARTY 3363 3363 MAKER CODE 10001000 MACHINE CODE 00010110 00000000 RCV V 8 FRAME EO 81 85 D4 90 7E 00 00 SYMBOL RATE 3429 ate eae 5 Figure 3 41 Service Error Activity Report receiving Header OK NG messages TX RX NO Indicates
80. f pages printed and total number of pages scanned by this fax 9 ROM ROM management ROM data such as the version number and checksum are displayed 6 2 2 Service data registration setting method Service data can be registered set by the following operations Standby date and Receive mode display 07 17 Fax Only 1 User data mode selection Press the Function button and then Data Registration button DATA REGISTRATION 2 Service data mode selection Press the button 3 Menu item selection Select the menu item by pressing the A or v button 3 NUMERIC Param Press the Set button 4 Data registration Input the data and press the Set button Press the STOP button to return to standby Figure 3 17 Service Data Setting Method Precautions when registering setting service data Detach the telephone line before registering service data We cannot guarantee the integrity of any reception of transmission operations during the registration process 3 44 6 2 3 Service data setting Service data Bit m SWO01 m SW02 m SW03 m SW04 1 SSSW Service soft switch setting m SW05 r SW06 m SW07 m SW08 m SW09 s SW10 SW11 SW12 08 SW13 Y SW14 SW15 SW16 SW17 SW18 SW19 SW20 SW 1 SW22 SW23 SW24 SW25 SW26 SW27 SW28 SW29 SW30 o o I O MultiPASS C755
81. five times replace the BJ cartridge or the ink cartridge Press the Function button then press the Cleaning button and select NOZZLE CHECK by the Set button with the first nozzle Yellow 48 nozzle Magenta 48th nozzle 48th nozzle Small drop Black 48 nozzle Large drop B1 180 dpi bi directional B2 360 dpi bi directional Printed with the 48th Figure 3 26 Nozzle Check Pattern Print 3 57 MultiPASS C755 Chapter 3 Maintenance amp Service 7 2 Service Test Functions The fax functions for testing individual operations such as below See Page 3 44 for details of entering the test mode To leave the test mode press the Function button and then Clear button 7 2 1 Test mode overview Test mode can be executed by following the menu items from the display a DRAM tests Writes data to DRAM image storage areas and reads that data to check operations b CS test CS test is used to enter the contact sensor s shading data Print test Prints nine different patterns within the print area d Modem NCU tests The frequency test and the G3 signal transmission and CNG signal and DTMF signals reception tests e Faculty tests Test the operation of operation panel and sensor functions f Printer test Test the operation of the printer functions 3 58
82. g 3 16 means that problems may occur with regard to the communucation compatibility of facsimile consult the matter with the staff in charge at the service station To quicken the resolving of the problem report the information listed in 1 above 3 36 MultiPASS C755 Chapter 3 Maintenance amp Service Procedures for processing communication problems with the Canon facsimile The process for carrying out communications at three points as shown in the figure Trouble A Your customer s facsimile B Facsimile of other communication party C Facsimile for check in the same region C should be the same model of facsimile as A Transmission or reception Transmission Reception NG NG Check B Check A Check B Check the line Figure 3 15 Flowchart for Processing Communication Troubles with Canon Facsimile 3 37 MultiPASS C755 Chapter 3 Maintenance amp Service Procedures for processing communication problems with other manufacturer s facsimiles When problems occur with other manufacturer s facsimiles make the user of the other party s facsimile call the serviceman in charge Perform communication at the four points listed in the figure Is the group lt the same Jen G1 G2 G3 Is there the lt similar trouble case Unable to receive Yes Process according to the case Transmitter or receiver receiver Check A Call t
83. ge is abnormal Evaluation criteria Check the copy image s faults Nothing is printed 1 Check the connection between the contact sensor and SCNT board JCS1 2 Clean the white sheet 2 Replace the contact sensor assembly 3 Replace the SCNT board The image has vertical stripes 1 Clean the contact sensor s reading glass 2 Clean the white sheet 3 Check the connection between the contact sensor and SCNT board JCS1 4 Replace the contact sensor assembly The image has thick vertical stripes 1 Clean the contact sensor s reading glass 2 Clean the white sheet 3 Make sure the document is not slanted 4 Check the connection between the contact sensor and SCNT board JCS1 5 Replace the contact sensor assembly The halftone image contains black dots 1 Clean the contact sensor s reading glass 2 Clean the white sheet 3 Check the connection between the contact sensor and SCNT board JCS1 4 Adjust the CS LED lights on duration See Page 3 6 5 Replace the contact sensor assembly 6 Replace the SCNT board The color or brightness of the image is not normal 1 Clean the contact sensor s scanning glass 2 Clean the white sheet 3 Adjust the CS LED lights on duration See Page 3 6 4 Replace the contact sensor assembly 5 Replace the SCNT board 3 34 MultiPASS C755 Chapter 3 Maintenance amp Service 4 4 Processing Communication Problems 4 4 1 Initial identification of problems
84. gram Operation Document panel sensor Document edge sensor to PCNT board Flat Color Contact sensor lt 720i cable Flat cable M Document 32 1 13 1 12 1 4 feed motor JPCNT1 JPANEL1 JCS1 1 8 HOST Centronics E Speaker cable US 1 2 IE SCNT board JSPK1 Ej 1 5 jm USB cable HE zy Extension phone lt p a JNCU2 Telephone line 2 3 86 d ms JNCUI lit 23 Flat cable Power supply Unit Carriage AC120V motor 1 4 6 4203 204 PS303 E i Flat 9 9 Carriage cabl Cartridge board Flat cable Home s position PS301 8 sensor Paper 302 Pick Up Edge roller PCNT board sensor a J301 Ink sensor 82 J201 Flat cable JPONT 1 gt to SCNT board J202 Figure 3 42 Wiring Dia
85. gram 3 83 Paper feed motor Josues uonisod Josues 199 P yu JOSUAS 1201000 10109 NON pm Josues Jexyeeds 20291 19 09 201021 uq N8 5 Josues WoL wou 5 lt uoioes 108098 6uluueos 8 jedeg jueunoog Slav ol 0qv sng 5 Josuas Ip a La a an 3 gt 2 Hq 20 0 VES 10521 z 1020 pee sedeg WOH d33 JAG a a 15599044 d 10109 oHn yun jaued L Josues jueuinooq uo113 s 04 u09 uia s S 40sues jueuunoo 10 1 Block Diagram Jojouu 10191 95514 soiuonuo2 ig aberen Weapon 10801 5 5 2 49 01 U09 LOS OI ES P4 14 o R c 161041002 uiejs s peo S E BE 529 01 0VS Sng sseippy nj dE SLAS 0 09 sng eieg sseuppy oc 50651 7 s oe gee EN Joyeinboy 055 lt dnyoeq NLS 10591 DEO _ 20651 uoissiusuen jenas L 1ej041u09 uie1s S 9 m 2I 49019 nta a lu AEE dans semog O T asn AOZLOW h MultiPASS C755 Chapter 3 Figure 3 43 Block Diagram 3 84 MultiPASS C755 Chapter 3 Maintenance amp Service 10 2 Circuit Board Components a System control sectio
86. hapter 3 Maintenance amp Service 4 3 3 Scanning problems Faulty scanning Evaluation criteria Test print is good but the copied image is no good The document is not fed The document feed motor does not run Evaluation criteria Check it visually 1 Check the connection from the document feed motor to the SCNT board 2 Check the document feed motor s resistance 15 Q 1 phase is normal Fig 3 1 1 3 Replace the document feed motor 4 Replace the SCNT board The document slips against the rollers Evaluation criteria Check it visually Stretched copy image 1 See page 3 4 and clean the document reading section 2 Replace the reading section s rollers The document does not separate Evaluation criteria Check it visually 1 Check whether the reading motor is driving all the rollers Check for any damaged gears or foreign matter stuck inside 2 See page 3 4 and clean the separation roller and separation guide 3 Replace the separation roller and separation guide Faulty scanner unit s sensors Evaluation criteria The placed document or transported document is not detected 1 Check for any faulty sensors while executing the copying operation and test mode 2 Check the connection from operation panel unit to the SCNT board JPANEL 1 3 Replace operation panel unit 4 Replace the SCNT board 3 33 MultiPASS C755 Chapter 3 Maintenance amp Service The scanning ima
87. he service station Call the service station Check B Transmitter Trouble Your customer s facsimile Facsimile of other communication party Facsimile for check in the same region C should be the same model of facsimile as A Other manufacturer s facsimile for check that is in the same region NG Check B Figure 3 16 Flowchart for Processing Communication Troubles with other manufacturer s facsimiles 3 38 MultiPASS C755 Chapter 3 Maintenance amp Service 5 COMMUNICATION SYSTEM OPERATIONS 5 1 FAX TEL Switching This fax is set to automatically switch between fax and telephone on the same telephone line If the other party is a fax the fax is received automatically and if the other party is a telephone the alarm in the main unit is rung to alert the user 5 1 1 Settings 1 Press the Receive Mode button to select the Fax Tel mode 2 Set the FAX TEL AUTO SW in RX SETTINGS menu 5 1 2 Parameters Default Setting Selection Item setting switch range RING START TIME 8 sec User data 0 to 30 sec Pseudo Ring start time F T RING TIME 15 sec User data 10 to 45 sec Pseudo Ring time DEFAULT ACTION RECEIVE User data RECEIVE Operation after FAX TEL switching DISCONNECT Pseudo RBT frequency 400 Hz None None fixed Pseudo RBT transmission from CML 4 sec Service data 3 16 0 to 9 sec on time until start CNG detection time Pseudo RBT pattern on t
88. ime 1000ms Service data 3 17 0 to 9990 ms Pseudo RBT pattern off time short 0 ms Service data 3 18 0 to 9990 ms Pseudo RBT pattern off time long 2000 ms Service data 3 19 0 to 9990 ms Pseudo RBT transmission level 23 dBm Service data 3 24 23 to 8 dBm Pseudo ring frequency 25Hz Service data 2 10 17Hz 25Hz 50Hz Pseudo ring pattern on time 1000ms Service data 3 20 0 to 9990 ms Pseudo ring pattern off time short 0 ms Service data 3 21 0 to 9990 ms Pseudo ring pattern off time long 2000 ms Service data 3 22 0 to 9990 ms CNG detection level 47 dBm Service data 3 23 50 to 29 dBm 3 39 MultiPASS C755 Chapter 3 Maintenance amp Service 5 2 Answering Machine Connection This connection is for effective use of an answering machine connected to the extension phone jack If the other party is a telephone the answering telephone records the message and if the other party is a fax the fax receives automatically 5 2 1 Settings 1 Connect the answering machine to the extension telephone jack and set the answering machine to Answer 2 Press the fax s Receive Mode button and select the Ans Machine mode 5 2 2 Parameters Default Setting Selection Item Setting Switch Range CNG Signal detection time 60 sec Service data 3 25 0 to 999 sec 5 3 Manual Auto Reception Switching Determines if the fax switches to document receive mode after the fax rings for a specified time when the fax is in the manual receive mode 5 3
89. ing edge 1 4 gt lt SCANNING 5 DROP OUT RANGE y SCANNING RANGE 2 k 6 Document trailing edge Figure 1 1 Scanning Range Item 4 Letter Legal 1 Effective scanning width 8 09 8 23 8 31 8 46 8 31 8 46 205 5 209 mm 211 0 215 mm 211 0 215 mm 2 Effective scanning length 11 54 10 84 13 84 289 297 mm 271 4 279 4 mm 347 6 355 6 mm 3 Left margin 0 04 0 14 0 04 0 14 0 04 0 14 1 0 mm 3 5 mm 1 0 mm 3 5 mm 1 0 mm 3 5 mm 4 Right margin 0 04 0 14 0 04 0 14 0 04 0 14 1 0 mm 3 5 mm 1 0 mm 3 5 mm 1 0 mm 3 5 mm 5 Top margin 0 08 0 08 0 08 0 08 0 08 0 08 2 0 mm 2 0 mm 2 0 mm 2 0 mm 2 0 mm 2 0 mm 6 Bottom margin 0 08 0 08 0 08 0 08 0 08 0 08 2 0 mm 2 0 mm 2 0 mm 2 0 mm 2 0 mm 2 0 mm Units are inches with mm shown in parentheses BB Document scanning width A4 LTR is set in service data 1 SSSW SWO6 bit4 NOTE 1 5 MultiPASS C755 Chapter 1 General Description 2 5 Printer Specification Printing method Bubble jet ink on demand BJ Cartridge Black BJ Cartridge Color BJ Cartridge Photo BJ Cartridge BC 30 BC 33 BC 34Photo Product code F45 1471 F45 1491 F45 1511 Structure Separate type ink tank Separate type ink tank Separate type ink tank Head 160 nozzles in a vertical line 192 nozzles in a vertical line 192 nozzles in a vertical line Bk 160 nozzles x 1 Bk C M Y 48 nozzles x 4 Bk C M Y 48 nozzles x 4 In
90. k colors Pigment Bk Pigment Bk C M Y Dye PBk PC PM Y Ink tanks BCI 3BK BCI 3BK BCI 3C BCI 3BK Photo BCI 3M BCI 3Y BCI 3PC Photo BCI 3PM Photo BCI 3Y Weight 60g without ink tank 72g without ink tanks 75g without ink tanks Ink Cartridge Products name Product code Ink contains BCI 3BK BCI 3C BCI 3M BCI 3 Y BCI 3BK Photo BCI 3PC Photo BCI 3PM Photo F47 2171 F47 2181 F47 2191 F47 2201 F47 223 1 F47 2211 F47 2221 23g BCI 3BK 11g others Ink detection Optical LOW Ink sense Printing speed Black Approx 8 7 pages minute in case of character print Color Approx 4 6 page minute Printing resolution 360 dpi x 360 dpi Normal print 1440 dpi x 720 dpi Printer mode 180 dpi x 180 dpi Economy print Printing in a checkered pattern without printing vertical and horizontal adjacent dots Paper output tray stacking Approx 50 sheets when using the recommended paper Paper tray Paper supply method Number of paper tray Paper capacity ASF Auto Sheet Feeder 1tray Legal Letter A4 Universal Max 0 40 10 mm thickness plain paper Approx 100 sheets Recommended paper Canon Copier LTR LGL Premium Paper Weight Paper size Manufactured by PLOVER BOND Weight Paper size Manufactured by XEROX 4024 Weight Paper size Manufactured by 75 g m Letter Legal BOISE CASCADE 75 g m 90 g m Letter FOX RIVER 75 g m 90 g m Letter Legal XEROX 1 6
91. lso if the color or brightness of scanned or copied images is faulty performing this adjustment may correct the problem b Procedure 1 Check that the operation panel is closed correctly then perform the adjustment by following the steps described below mw Display TEST MODE b Data registration pressi A or vi 2 1 ADJ LEDTIME TEST MODE Several seconds later TEST MODE Figure 3 2 CS LED Lights on Duration Adjustment Operation 2 The adjustment procedure is finished when the display reads TEST MODE 3 6 MultiPASS C755 Chapter 3 Maintenance amp Service 3 2 When Adjustment of the Print Head Position is Required a Overview When replacing the print heads the point of ink ejection may be off preventing clean characters depending on the state in which BJ cartridge is installed In order to eliminate this drift it is necessary to adjust the head position after attaching the BJ cartridge Set 2 or more sheets of normal paper sized A4 or LTR on the Auto Sheet Feeder and perform head position adjustment following the steps in Fig 3 4 HH H 1 25 _ WwW W Figure 3 3 Print Position Adjustment Patterns Be sure to set A4 or LTR sized paper in the ASF before printing the head position adjustment pattern Using printing paper smaller than the printing area of the data when performing the head posi
92. mary supplied with AC voltage Telephone line primary LBP engine high voltage contacts for high voltage during developing and transfer High temperature In order to prevent burns during disassembly allow at least ten minutes after the power has been switched off for the high temperature components to cool down General high temperature components are as follows Motors Power supply unit Elements on driver ICs etc on PCBs in particular ICs with heatsinks BJ cartridge aluminium plate for BJ cartridge engine models Fixing unit and peripheral covers for LBP engines Fire It is dangerous to throw lithium batteries and parts and components containing flammable substances such as cartridges etc into fire Such parts and components must be disposed of in accordance with local laws and regulations Ignition When using solvents such as alcohol etc while conducting service there is a danger of fire igniting from heat from internal circuitry and from sparks Before using any such solvents be sure to switch off the power and allow time for high temperature parts to cool down Make sure that there is sufficient ventilation when working with solvents Movable parts In order to prevent accidents with movable parts be sure to remove the power cable when conducting service that requires disassembly Also take care that personal accessories and hair etc are not caught in any moving parts MultiPASS C755 Chapt
93. mmunications shown below are specifications so please take care when fielding questions from users Transmission Specifications Even if the Color B amp W button is pressed and the display changed between pages during transmission pages of BW images and pages of Color images cannot be mixed Image transmission of JPEG grayscale is not possible Even when ECM TX settings are OFF this setting is ignored for color transmission and transmission is done automatically by ECM The TTI header attached to the head of the color image is an image compression specification added when scanning so the time is the scanning time not the time that transmission actually begins This differs from BW transmission Two types of transmission mode for color transmission can be chosen STANDARD and FINE These are changed by the compression ratio depending on the quantization parameter This varies according to the image but transmission in STANDARD takes approximately half the time compared to FINE mode When COLOR DIRECT is set to on direct transmission will be done However memory transmission will be done when multiple addressees are indicated Reception Specifications In the TX REPORT settings even when PRINT WITH IMAGE is set to ON the color transmission image is not attached Instead a The color fax image is not printed on this report message is printed Grayscale JPEG images sent from machines of other companies can be receive
94. mory with the installed Photo BJ cartridge Solution Remove the Photo BJ cartridge and install the Color or Black BJ cartridge Alternatively enable the PHOTO INK PRINT setting INSTALL BC33 34 Cause You tried to make a color copy in HI RES PAPER or COLOR SNAPSHOT mode with the installed Black BJ cartridge Solution Remove the Black BJ cartridge and install the Color or Photo BJ cartridge K INK EMPTY Cause The Black BJ tank in the Color Photo or Black BJ cartridge is empty Solution Replace the Black BJ tank LOAD PAPER 009 Cause The fax is out of paper Solution Add more paper to the paper cassette Make sure the stack is below the limit mark and press the Start or Resume button 3 19 MultiPASS C755 Chapter 3 Maintenance amp Service M INK EMPTY Cause The Mazenta BJ tank in the Color or Photo BJ cartridge is empty Solution Replace the Mazenta BJ tank MEMORY FULL 037 Cause The fax s memory is full because it has received too many documents Solution 1 Print out any documents which are stored in memory Then start the operation again 2 If the memory contains any facsimiles you don t need delete them 3 You cannot receive a fax was scanned with fine graphic images Cause The fax s memory is full because you tried to send too many pages at once Solution Divide the document and send each part separately NO ANSWER 005 Cause The receiving fax machine does not answe
95. n 288 TX Receive signals other than PIN PIP MCF RTP or RTN after EOP transmission 289 TX Receive signals other than PIN PIP MCF RTP or RTN after EOM transmission 290 Receive signals other than PIN RTN after MPS Printer error codes transmission No Tx or Rx Definition 4332 TX RX Printer control DRAM check error 333 TX RX Printer control ROM check error H334 TX RX Printer control EEPROM check error 18 335 Data transmission error between the system control section and printer control section 336 TX RX BJ head abnormal temperature error 337 RX BJ head temperature sensor error 342 Cleaning absorption waste ink capacity full 345 TX RX BJ cartridge head cleaning error 346 TX RX Inside temperature error 348 TX RX Ink detection sensor error V 8 V 34 protocol error codes No Tx or Rx Definition 670 At V 8 late start the called party declares V 8 protocol in DIS signal and this unit transmits a CI signal but the protocol does not progress and a T1 time out occurs 671 RX At V 8 termination the protocol did not advance to phase 2 and a 1 time out occurs after the caller CM signal was detected 672 The protocol did not move from phase 2 to phase 3 and a time out occurred during V 34 transmission 673 RX The protocol did not move from phase 2 to phase 3 an
96. n The system controller is made up of the following components and controls the entire fax system This section drive 3 3V voltage from power supply unit a 1 MPU Micro Processor Unit IC 101 The main functions of the NEC uPD703102GJ A33 022 8EU V850 MPU are as follows 32 bit CPU 24 bit address bus 16 bit data bus DMA control A D converter Serial interface Software CODEC MH MR MMR JBIG Color FAX function Lab color conversion JPEG encode decode nterrupt control unit Built in 4K Byte RAM for working area Built in 128K Byte Mask ROM for programable area a 2 System controller IC 301 The system controller is a gate array for controlling MPU peripheral devices This IC drive 5 and 3 3V voltage The main functions of the system controller are as follows Printer resolution conversion Ultra smoothing This IC converts facsimile data of horizontal resolution of 8 dots mm and vertical resolution of 3 85 or 7 7 lines mm to print data of 360 dpi and 360 dpi respectively BJ printer interface IEEE 1284 8 bit parallel print data sent to the Printer controller OPCNT serial interface Contains document sensor and document edge sensor signals DRAM SRAM controller Controls DRAM SRAM read write and renewal Serial to parallel conversion Horizontal scaling Detection of document edge sensor and ink detection sensor a 3 RTC Real Time Clock IC IC 502 S 3510ANFJA is used as the RTC The RTC
97. n level within a range of 8 15 dBm or set 1 SSSW SW 28 bit 1 to 1 to inhibit the V 8 V 34 protocol for the called party 672 TX The protocol did not move from phase 2 to phase 3 and a T1 time out occurred during V 34 transmission Cause The called party disconnected the line during phase 2 or the signal from the called party was not able to be detected Solution Increase 2 MENU No 07 transmission level within a range of 8 15 dBm or set 1 SSSW SW 28 bit 0 to 1 to inhibit the V 8 V 34 protocol on calling 673 RX The protocol did not move from phase 2 to phase 3 and a T1 time out occurred during V 34 reception Cause The transmitter disconnected the line during phase 2 or the signal from the transmitter was not able to be detected Solution Increase 2 MENU No 07 transmission level within a range of 8 15 dBm or set 1 SSSW SW 28 bit 1 to 1 to inhibit the V 8 V 34 protocol on termination 3 28 MultiPASS C755 Chapter 3 Maintenance amp Service 674 TX The protocol did not move from phase 3 to phase 4 and a T1 time out occurred during V 34 transmission Cause The called party disconnected the line during phase 3 or the signal from the called party was not able to be detected Solution Increase 2 MENU No 07 transmission level within a range of 8 15 dBm or set 1 SSSW SW 28 bit 0 to 1 to inhibit the V 8 V 34 protocol on calling 1 675 RX The protocol did not move from phase 3 to pha
98. ng registering data copying and other operations and returns the MultiPASS to standby mode Start Button Starts sending receiving scanning and copying Figure 1 7 Operation Panel 1 1 1 4 MultiPASS C755 Chapter 1 General Description One Touch Speed Dialing Special Function Buttons The buttons on the right of the operation panel have the following two functions One Touch Speed Dialing Buttons The buttons marked 01 to 12 can be used to dial fax telephone numbers pre registered under these buttons To use the one touch speed dialing buttons the Function button s light must be off Special Function Buttons The special function buttons marked under or to the sides of the buttons are described below To access the special functions press Function to turn on its light and then press the button you wish to access Data Registration Button Accesses the different menus for customizing your MultiPASS V Buttons 04 05 Scroll through the settings so you can 06 lt gt D gt see other selections in the menus during Memory Reference Space data registration 07 08 09 E Memory Reference Button Performs operations with documents Report Data Registration stored in memory Also prints documents in memory you no longer want to upload to your PC B lt gt Buttons Move the cursor left or right when registering data Function Set Space But
99. ody in carriage section Open printer cover and remove foreign body Loose carriage belt Replace carriage belt Guide frame home position detection tabs is damaged or bent parts Replace the damaged or bent parts Carriage motor does not work 1 Switch power OFF ON 2 Replace carriage motor Carriage position cannot be detected Home position sensor breakdown or BJ controller malfunction 1 Switch power OFF ON 2 Replace carriage cable with one that has a home position sensor attached 3 Replace the PCNT board This error message means the same as service error codes 338 and 340 When this E error occurs in this model it is not treated as a service error but as a user error and the error message is displayed NOTE 3 17 MultiPASS C755 Chapter 3 Maintenance amp Service CHANGE CARTRIDGE Cause The printer cover is open and the cartridge holder is moving to the center of the unit Solution Wait until the cartridge holder stops then replace the BJ cartridge or tanks CHECK DOCUMENT 001 Cause Document jam This is displayed when the document sensor detects paper but the document edge sensor cannot detect the leading edge of the document with 15 seconds from the start of the feed operation Solution Clear the document jam CHECK PAPER SIZE Cause The size of the paper loaded in the paper cassette is different from the paper size set by user data Solution Set th
100. on the power and perform an Clear For details on how to perform an Clear operation refer to page 2 3 1 4 Action in the Event of Abnormality 6 After performing All Clear where necessary enter the data that you printed out earlier 2 10 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 4 Print ass y 1 Perform Disassembly 1 and Disassembly 2 from 2 till 4 Then perform Disassembly 3 2 2 Remove the two screws a 3 Use a screwdriver or similar to prise loose the two tabs e 4 Take hold of the handles shown in the diagram and take out the printer c Disassembly 5 Power supply unit 1 Perform Disassembly 4 and then remove the printer assembly 2 Remove the two screws b 2 Remove the power supply unit d Figure 2 8 Disassembly 4 and Disassembly 5 2 11 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 6 Waste ink absorber 1 Perform Disassembly 4 and then remove the printer assembly 2 Remove the two waste ink absorber a b one of which is on top of the other Figure 2 9 Disassembly 6 Replacement of waste ink pads The waste ink pads are designed to sop up any excess ink ejected during the cleaning operation or during ink squirting for maintenance in order to maintain the good printing quality of the BJ cartridge The volume of ink absorbed is counted and these data stored in the EEPROM on the PCNT board Once the volume is
101. or Faxing Solution 1 Try sending again in black amp white 2 Check the received fax machine s setting for color faxing is available 342 Cleaning absorption waste ink capacity full Solution Unlike errors that trigger the CHECK PRINTER message This error is programmed so that it cannot be cleared using the Resume button Replace the waste ink absorber as follows in the error occurs 1 Select 3 INK ABS CAPA under 7 PRINTER in service mode and the counter to 0 2 Check to make sure that no image exist in memory then turn off the power remove the appropriate parts and replace the waste ink absorber V 8 V 34 protocol error codes 670 TX At V 8 late start the called party declares the V 8 protocol in DIS signal and this unit transmits a Cl signal but the protocol does not progress and a T1 time out occurs Cause The other party disconnected the line while the CI signal was being transmitted or ANSam DIS from the called party was not able to be detected Solution Increase 2 MENU No 07 transmission level within a range of 8 15 dBm or set 1 SSSW SW 28 bit 0 to 1 to inhibit the V 8 V 34 protocol on calling 671 RX At V 8 termination the protocol did not advance to phase 2 and a T1 time out occurs after the caller CM signal was detected Cause The caller disconnected the line or the signal from the caller was not able to be detected Solution Increase 2 MENU No 07 transmissio
102. ortrait orientation You can use regular copier paper cotton bond paper and typical letterhead Your unit does not require special ink jet paper and produces letter quality print on most plain paper Always use paper without curls folds staples or damaged edges Copier paper has a preferred side for printing Look at the label on the package to see which side to print on E Envelopes The MultiPASS can print on U S Commercial No 10 envelopes and European DL envelopes The following envelopes are not recommended because they may cause jams or smears resulting in damage to your unit Envelopes with windows holes perforations cutouts and double flaps Envelopes made with special coated paper or deeply embossed paper Envelopes with peel off sealing strips Envelopes with letters enclosed You may be able to stack envelopes of other sizes in the multi purpose tray However Canon cannot guarantee consistent performance on envelope sizes other than U S Commercial No 10 and European DL Glossy Photo Paper GP 301 Canon Glossy Photo Paper GP 301 is a high gloss thick paper that produces the look and feel of a photograph Use this paper with the Photo BJ cartridge to print photo realistic images Banner Paper Canon Banner Paper is specifically designed for printing one continuous sheet in a banner format The connected sheets are divided by perforations and you can print from two to six sheets at a time Canon Banne
103. r Solution Make sure you dialed the correct number Try again later NO RX PAPER 012 Cause The receiving fax machine declares no paper in DIS or its memory is full Solution Contact the other party and ask them to put paper in their machine or to clear their fax machine s memory NO TEL 022 Cause The button you pressed has no number registered for One Touch Speed Dialing Coded Speed Dialing or Group Dialing Solution Print a list of registered numbers and make any corrections needed then try again AVAILABLE Cause One touch or coded speed dial already registered Solution Check the contents of the one touch or coded speed dialling registration then try again PRINT W BC 34 Cause You disabled the PHOTO INK PRINT setting and the unit is confirming that it is all right to print a color document in memory with the installed Photo BJ cartridge Solution Press to print the color document with the Photo BJ cartridge or press to cancel printing Alternatively enable the PHOTO INK PRINT setting PUT IN CARTRIDGE Cause The BJ cartridge is not set Solution Set the BJ cartridge Cause The BJ cartridge is set incorrectly Solution Set the BJ cartridge correctly START AGAIN Cause An error occurred on the phone line or in the system Solution Start the procedure again from the beginning 3 20 MultiPASS C755 Chapter 3 Maintenance amp Service TRY A
104. r Dust from the tissue paper causes static electricity Precautions when Using IPA When cleaning with IPA take care to prevent the IPA from splashing high temperature parts If IPA splashes high temperature parts leave for at least three minutes to allow the IPA to evaporate 3 4 MultiPASS C755 Chapter 3 Maintenance amp Service Separation guide White sheet Printer platen Separation roller Document eject roller Scanning glass Document feed roller Figure 3 1 Cleaning Location 3 5 MultiPASS C755 Chapter 3 Maintenance amp Service 3 ADJUSTMENT 3 1 CS LED Lights on Duration Adjustment a Overview This adjustment is used to eliminate uneven scanning which can result from variations in light intensity between individual LED s Performing the adjustment will therefore have an effect on scanned and copied images The adjustment value is registered in an SRAM IC which has lithium battery back up and will not be lost even if power is turned off However the SRAM data can become damaged for example by battery depletion In this case the machine checks the data s validity the next time power is turned ON If the data is invalid the adjustment is made automatically Because the user is automatically prompted it is almost never necessary to perform this adjustment during normal use However if the SCNT board Contact sensory ass y or lithium battery is replaced be sure to perform this adjustment A
105. r Paper is specially designed for use with Bubble Jet printers and produces bright and vivid color images High Resolution Paper HR 101S HR 101N Canon High Resolution Paper HR 101S HR 101N is designed to produce near photographic quality print output with sharp and vivid graphics For best results use this paper with the Photo BJ cartridge The Canon High Resolution Paper HR 101N will be released in the near future Figure 1 12 Print Media 1 MultiPASS C755 Chapter 1 General Description Bubble Jet Paper LC 301 Canon Bubble Jet Paper LC 301 has been developed for high quality printing with minimal or no smearing or running when in contact with water or damp surfaces This specially coated paper produces bright and vivid colors and stands up to normal office highlighters unlike images printed on other paper Back Print Film BF 102 Canon Back Print Film BF 102 has been specially developed for Bubble Jet printers This unique mylar based translucent sheet is designed to deliver sharp brilliant high intensity color images suitable for business presentations design work or professional reports Back print film is printed on the back non glossy side of the film in mirror image and then viewed from the front glossy side using a backlit device such as a light box High Gloss Photo Film HG 201 Canon High Gloss Photo Film HG 201 features a bright white finish that lends striking visual power to charts graphs and pho
106. red Not used in the field Received status of the modem when an error occurred Not used in the field Received transmitted protocol signal bit 1 to bit 96 of received transmitted DIS DCS or DTS If no service errors have occurred in the past the above report will not be output NOTE 3 80 MultiPASS C755 Chapter 3 Maintenance amp Service a 3 Service activity report sending receiving 06 17 1999 12 54 FAX 3364 3364 9001 ERROR TX REPORT E TX FUNCTION WAS NOT COMPLETED TX RX NO 0035 CONNECTION TEL 3361 CONNECTION TD AA ST TIME 08 17 12 54 USAGE T 00 22 PGS SENT 0 RESULT NG 88755 START TIME 06 17 12 54 OTHER PARTY 3361 MAKER CODE 10001000 MACHINE CODE 10101010 00000000 RCV Y 8 FRAME EO 81 85 D4 90 7E 00 00 SYMBOL RATE 3429 DATA RATE 28 8 Figure 3 40 Service Error Tx Report Header OK NG messages TX RX NO Indicates four digits of the transaction number CONNECTION TEL Number sent from the other party or number dialled lower 20 digits OTHER PARTY SUBADDRESS Subaddress number sent from the other party CONNECTION ID ID sent from the other party if the other party is a Canon fax START TIME Communication start date and time on 24 hour display USAGE TIME Communication time in minutes and seconds PAGES Number of pages for which transmission was compl
107. ror Codes are displayed and in reports When Not Output is selected no Service Error Codes are displayed SW28 service soft switch 28 V 8 V 34 protocol settings Bit Function 1 0 0 New Caller V 8 protocol NO YES 1 New Called party V 8 protocol NO YES 2 New Caller V 8 protocol late start NO YES 3 New Called party V 8 protocol late start NO YES 4 New V 34 reception fallback Prohibited Not prohibited 5 Not used 6 Not used 7 Not used Bit 0 Select whether to use the V 8 protocol when calling If NO is selected the V 8 protocol is inhibited at calling and the V 21 protocol is used Bit 1 Select whether to use the V 8 protocol when called If NO is selected the V8 protocol is inhibited when called and the V 21 protocol is used Bit 2 If ANSam signal is not received during transmission mainly manual transmission select whether to use the V 8 protocol when the other fax machine declares the V 8 protocol in DIS signal If NO is selected the CI signal is not transmitted and the V 8 protocol is not used even if the DIS that specifies the V 8 protocol is received 3 53 MultiPASS C755 Chapter 3 Maintenance amp Service Bit 3 Select whether to declare the V 8 protocol in DIS signal for reception mainly caller manual transmission If NO is selected the V 8 protocol cannot be used because it is not declared in DIS signal Bit 4 Select whether the receiver falls back during V 34 reception If O
108. se 4 and a T1 time out occurred during V 34 reception Cause The transmitter disconnected the line during phase 3 or the signal from the transmitter was not able to be detected Solution Increase 2 MENU No 07 transmission level within a range of 8 15 dBm or set 1 SSSW SW 28 bit 1 to 1 to inhibit the V 8 V 34 protocol on termination 3 29 MultiPASS C755 Chapter 3 Maintenance amp Service 4 3 Errors not Shown on the Display 4 3 1 General errors The unit does not power on 1 Check the power cord connection 2 Check the connection between the PCNT board J204 and power supply unit 3 Check the power supply unit s fuse F1 4 Replace the power supply unit The display looks abnormal Nothing is displayed 1 Check the connection between the Operation panel unit and SCNT board JPANEL1 2 Replace the Operation panel unit 3 Replace the SCNT board Part of the LCD panel does not display anything 1 Check the connection between the Operation panel unit and SCNT board JBAANEL 1 2 Replace the Operation panel unit 3 Replace the SCNT board The buttons do not work 1 If the test mode can be used check for faulty buttons 2 Check the connection between the Operation panel unit and SCNT board 1 3 Replace the Operation panel unit 4 Replace the SCNT board No sound from the speaker 1 Check the connection of the speaker and SCNT board JSPK1 2 Replace the speaker
109. t 3 4 When the ASF Gear Initial Position Adjustment is Required When installing the ASF the ASF gear initial position adjustment must be executed to match phase with the purge unit s ASF drive gear which is the transmission source of the ASF drive and the ASF gear Preparing for the Adjustment Make sure that the purge unit s ASF drive gear is in the initial position when assembling If it is in the initial position assemble the printer with the ASF unit removed and Procedures 1 through 3 are not necessary If it is not in the initial position follow the adjustment procedures described below 1 Manually rotate the ASF drive gear slowly in the direction of the arrow to move it to the initial position 2 Stop rotating the gear until a click can be felt where the rotation stops To confirm the position gently move the ASF drive gear vertically with your fingers Make sure that the gear is at the position where click can be felt 3 If the gear has passed the click position rotate the gear in the arrow s direction to return to the correct position ASF Drive Gear Figure 3 6 ASF Drive Gear Initial Position 3 9 MultiPASS C755 Chapter 3 Maintenance amp Service Adjustment Procedures 1 Rotate the pick up roller to place the ASF unit s cam and the mark in the position shown in Figure 3 7 2 Hold the gear still with your fingers and fix the ASF unit to the printer chassis by screw Align the projection of the ASF gear with the
110. t The PCNT board EEPROM is for storing data on the volume of waste ink absorbed and vertical line displacement correction data When replacing the PCNT you should confirm the waste ink volume from the system dump list and make a note of it Then after you have replaced the board enter this value and perform vertical line displacement correction 2 16 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 14 ASF unit 1 Carry out Disassembly 4 2 Remove the two red screws 3 Bend the tabs d with your hand and remove the ASF unit eB For details on how to adjust the ASF unit refer to page 3 9 3 4 When the ASF Gear Y Initial Position Adjustment is required REFERENCE Figure 2 15 Disassembly 13 and Disassembly 14 2 17 MultiPASS C755 Chapter 2 Assembly and Disassembly Disassembly 15 Pickup roller 1 Perform Disassembly 14 2 Rotate the pickup roller to position a and then loosen the tabs b and slide out the pickup roller c to the left and remove it Figure 2 16 Disassembly 15 Disassembly 16 Purge unit 1 Perform Disassembly 4 and remove the print ass y 2 Remove the three screws a 3 Remove the purge unit b Figure 2 17 Disassembly 16 2 18 MultiPASS C755 Chapter 2 Assembly and Disassembly Carriage lock release With a cartridge and carriage mounted when the printer is powered off it is usually locked in the carriage capping position When the
111. tal X3 or less Operating noise Measured in accordance with ISO standards Operating 47 dB A or less Dimensions W x D x H 17 20 x 16 85 x 8 15 437 mm x 428 x 207 mm Not including Trays Weight 14 55 lbs 6 6 kg Including trays 2 2 Communication Specification Applicable lines PSTN Public Switched Telephone Network Applicable Services DRPD Distinctive Ring Pattern Detection Handset None Transmission method Half duplex Transmission control protocol ITU T T30 binary protocol ECM protocol ITU T V 8 protocol V 34 protocol ECM protocol Modulation method G3 image signals G3 procedure signals ITU T V 27ter 2 4k 4 8k bps ITU T V 29 7 2k 9 6k bps ITU T V 17 TC7 2k TC9 6k 12k 14 4k bps ITU T V 34 2 4k 4 8k 7 2k 9 6k 12k 14 4k 16 8k 19 2k 21 6k 24k 26 4k 28 8k 31 2k 33 6k bps ITU T V 21 No 2 300bps ITU T V 8 300bps ITU T V 34 600 bps 1200 bps With automatic fallback function Coding Black white Color ITU T T 4 Coding method MH MR ITU T T 6 Coding method MMR ITU T T 82 T 85 Coding method JBIG ITU T T 81 Coding method JPEG Error correction ITU T T30 ECM Canon express protocol CEP None 1 2 MultiPASS C755 Chapter 1 General Description Time required for transmission protocol Pre message Post message Post message Protocol Protocol Protocol Mode between pages
112. tion When User Main unit outer covers When dirty Printer platen When ink adheres to the platen Separation roller When document separation performance deteriorates Document feed eject When document feed eject performance deteriorates roller Separation guide When document separation performance deteriorates Scanning glass When black vertical stripes contact sensor appear in copied or transmitted images White sheet When the color or brightness of the copied or transmitted image is not normal Service Technician None MultiPASS C755 Chapter 3 Maintenance amp Service 1 3 Periodic Inspection None 1 4 Periodic Replacement Parts None 1 5 Adjustment Items The following adjustments must be made on this fax For the adjustment procedure see 3 ADJUSTMENT on page 3 6 Item When CS LED lights on duration When the SCNT board or the lithium battery or the contact adjustment sensor are replaced Also when the color or brightness of the copy Vertical Alignment adjustment image or transmission image is not normal When the vertical lines shift during Bi directional printing Carriage belt tension adjustment When reinstalling the idler pulley ASF gear initial position adjustment When reinstalling the ASF unit Head gap adjustment When loosening the screws fixing the head to paper distance Automatic adjustment of CS LED lights on duration The CS LED lights on duration which can be adj
113. tion adjustment print will contaminate the platen with ink 3 7 MultiPASS C755 Chapter 3 Maintenance amp Service ALIGN PRINT HEAD Display ALIGN PRINT HEAD Function Cleaning Pressing l button HS PATTERN PRINT For the Printed B1 pattern use lN or M button to enter the Value above the perfectly lines Printing the HS Pattern HS CHANGE VALUE DATA ENTRY OK DATA ENTRY OK For the Printed B2 pattern use IA or M button to enter the Value above the perfectly lines HQ PATTERN PRINT HQ CHANGE VALUE Printing the HQ pattern For the Printed B1 pattern use or M button to enter the Value above the perfectly lines DATA ENTRY OK DATA ENTRY OK For the Printed B2 pattern use N or M button to enter the Value above the perfectly lines HQ PATTERN PRINT Figure 3 4 Vertical Line Misalignment Correction Procedure Return to standby mode 3 8 MultiPASS C755 Chapter 3 Maintenance amp Service 3 3 When the Carriage Belt Tension Needs Adjustment When tension on the carriage belt has been loosened for example to remove the carriage the carriage belt tension needs to be adjusted Use the tension spring tool QY9 0043 when fixing the pulley assembly before tightening the screws Remove the tension spring after the screws are fixed Tension Spring Idler Pulley Figure 3 5 Carriage Belt Tension Adjustmen
114. to the entire D RAM region and reads it out to check that operations are correct D RAM Test 2 just reads data at high speed Replace the SCNT board if an error occur Operating 6848K D RAM total memory capacity bytes 1 D RAM 6848K x Indicates an address for which write testing is complete Indicates an address for which read testing is complete KKK KK ok Error Normal end Error display Complete no err WRT 33CC RD 3333 ADR 2800 Restart by pressing START COPY key WRT data written Etter display RD data read ADR address omplete err Figure 3 29 D RAM Test 7 2 4 CS tests Pressing the 2 button from the test mode menu selects the CS tests ADJ LED TIME is used to adjust the CS LED lights on duration and enter the contact sensor s shading data pre scan operation Details on CS LED lights on duration adjustment see 3 1 CS LED Lights on Duration Adjustment on page 3 6 REFERENCE Tests 2 3 4 and Tests 5 are not used in the field 3 61 MultiPASS C755 Chapter 3 Maintenance amp Service 7 2 5 PRINT test Pressing the 3 button from the test mode menu selects the print test This test prints various patterns For servicing use the 3 7 CHECKERS pattern press the 7 button from the print test menu The other patterns are not to be used since they are for development and factory personnel End this test by pressing the Stop button Refer to page 3 32 if blank ink appear etc o
115. to bring the carriage to Position A2 Align the right edge of the carriage with the bottom case s rib 3 Install a black BJ cartridge with no ink tank in the carriage 4 Move the paper selector lever up and down 2 or 3 times and then with the lever raised in the plain paper position tighten the right fixing screw 5 Remove the black BJ cartridge 6 Set the gap gauge in Position 7 Lower the paper selector lever to the thick paper position down 8 Move the carriage belt manually and bring the carriage to Position B2 Align the left edge of the carriage with the edge of the ink sensor s cover 9 Install a black BJ cartridge with no ink tank in the carriage 10 Move the paper selector lever up and down 2 or 3 times and then with the lever raised in the plain paper position tighten the left fixing screw 11 Remove the black BJ cartridge 12 Loosen the right fixing screw by a half turn and execute procedures 1 through 5 again to complete the adjustment Remove the bottom case again to attach the paper separator lever spring and the shaft clips on both sides Position A1 Position A2
116. tographic images It creates a sharper and more vivid color output than is possible with coated paper Use of this film gives your presentation materials and graphics a professional look This film provides the best color print quality for the Color BJ cartridge Transparencies CF 102 Canon Transparencies CF 102 produce excellent contrast sharpness and color creating crisp and professional overhead presentations Do not use normal transparencies in the MultiPASS as they do not absorb ink and may cause ink to run Glossy Photo Cards FM 101 Canon Glossy Photo Cards FM 101 made from the same stock as Glossy Photo Paper allow you to print images over the entire area of the card Print the image so that it extends beyond the perforations and then trim off the unwanted white margins Figure 1 13 Print Media 2 1 20 MultiPASS C755 Chapter 2 Assembly and Disassembly 1 ATTENTION TO BE PAID DURING ASSEMBLY DISASSEMBLY 1 1 Safety Cautions Electrical shock In order to prevent any risk of electrical shock always be sure to check that the power cord and modular jack have been removed Also remove all cables connecting to the computer When conducting service that requires the main unit to be powered on be sure to wear some kind of earthing such as a wrist strap etc Otherwise there is a danger of conduction and electrical shock Parts which are generally likely to cause electrical shock are as follows Power supply unit pri
117. ton C 2 C gt Resume Enters a space between letters and Cleaning Clear J numbers when registering information B Button Enters a plus sign when registering your unit fax telephone number E Function Button Light Report Button Switches between the special Prints reports containing registered function buttons and the one touch information and information on speed dialing buttons To use the transactions special function buttons press this E Cleaning Button button to turn on its light To use the Prints the nozzle check pattern performs one touch speed dialing buttons cleaning operations and aligns the BJ press to turn off its light cartridge print head position E Set Button E Clear Button Selects and registers settings or Clears an entire entry when registering information during data registration information Resume Button Form feeds paper when printing and resumes printing after an error is corrected Figure 1 8 Operation Panel 2 1 15 MultiPASS C755 Chapter 1 General Description Guidelines for Entering Numbers Letters and Symbols When you come to a step that requires you to enter a name or number refer to the table below to determine which numeric button to press for the character you want Button Letters Numbers 1 gt ABCabc DEFdef GHIghi JKLjkl MNOmno
118. urst condition Set close to 99 lines No 04 Lines below the burst condition Set close to 99 times Increase the no sound time after CFR reception Change service data 1 SSSW SW04 bit 4 to 1 Bit 4 1 Time when the low speed signal is ignored after sending a CFR signal 1500 ms O0 Time when the low speed signal is ignored after sending a CFR signal 700 ms 3 23 MultiPASS C755 Chapter 3 Maintenance amp Service c ERROR CORD LIST for MultiPASS C755 New error codes indicate new in this list C 1 User error code No Tx or Rx Definition 001 TX Paper jam 003 TX RX Copy page communication time over 3 005 TX RX Initial ID T1 time over 009 RX Recording paper jam or out of paper 011 RX Polling error 012 TX Other party out of paper 018 TX RX Automatic dialing error 021 RX DCN during polling Rx 022 TX Call failure 037 RX Image memory full 039 TX Closed network Tx failure 052 RX Image memory full by no ink error new 085 TX Other party does not support ITU T Color Faxing 995 TX RX Memory Communication reservation cancellation c 2 Service error code G3 mode error codes No Tx or Rx Definition 100 TX Excessive repeat protocol during Rx 101 TX RX Modem speed different from other party 102 TX Fall back failure during Tx 103 RX Fail to detect EOL for 5 seconds 15 seconds for CBT during Rx 104 TX RTN or PIN re
119. user operations and user reports see the separate volume of USER S GUIDE Greasing points is not given in this manual See the illustrations in the separate volume of REFERENCE parts CATALOG Detailed description of each SSSW parameter is not given in this manual except the new SSSWs parameters added to this model See G3 Facsimile Service Data Handbook supplied separately for details them See the G3 Facsimile Error Code List Rev 1 supplied separately for details of the error codes not shown in this manual Ill REVISION HISTORY REVISION CONTENT 0 Original IV TABLE OF CONTENTS Page 1 1 C mm m c 10 12 12 14 17 17 19 O QO GO N N N Chapter 1 General Description 1 FEATURES 1 1 Overview 2 SPECIFICATIONS 2 1 General Specification 2 2 Communication Specification 2 3 Color Communication Specification 2 4 Scanner Specification 2 5 Printer Specification 2 6 Copy Specification 2 7 Function 3 OVERVIEW 3 1 External View 3 2 Operation Panel 3 3 Consumables 3 3 1 BJ cartridge and ink cartridge 3 3 2 Print media Chapter 2 Assembly and Disassembly 1 ATTENTION TO BE PAID DURING ASSEMBLY DISASSEMBLY 1 1 Safety Cautions 1 2 General Cautions 1 3 Product Inherent Cautions 1 4 Action in the Event of Abnormality All Clear 2 DISASSEMBLY ASSEMBLY 2 1 Parts Layout 2 2 Disassem
120. usted via button operation is also adjusted automatically in the following cases When power is turned ON then SRAM data is corrupted When this product is shipped after factory adjusment of the CS LED light on duration the exposure control data is stored in SRAM Because this data is preserved by the Lithium battery even if the power supply is shut off further adjustment is unnecessary in almost all cases When the machine s power switch is turned on the data stored in SRAM is checked for correctness by Checksum and if any data in SRAM has been lost adjustment of CS LED lights on duration is automatically performed at that time At first a check is done for the presence absence of a document and if there is no document exposure control is performed automatically Exposure control data measured after this is stored in SRAM When a document is present scanning is done in an error condition an abnormal image is output and the contact sensor is aware that there is an abnormality 3 2 MultiPASS C755 Chapter 3 Maintenance amp Service 1 6 General Tools Tool Use Phillips screwdriver Removing inserting screws Flat bladed screwdriver Removing inserting screws Precision Phillips screwdriver Removing inserting screws Precision flat bladed screwdriver Removing plastic tabs Tweezers Removing coil spring Isopropyl alcohol IPA Cleaning the cleaning location Pliers needle nose Driving retaining ring 1 7 Special Tools Tool Use

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