Service Manual
Page 3
... List (Rev.1, supplied separately) for details of the product. II Chapter 3: Maintenance and Service This part explains how to service the unit safely. Chapter 2: Assembly and Disassembly This part explains the assembly and disassembly of the error codes not shown in this manual except the new SSSWs.../parameters added to this manual. Chapter 4: Appendix This part explains the informations of the optional products and user data flow. • For more details of user operations and user reports, see ...
... List (Rev.1, supplied separately) for details of the product. II Chapter 3: Maintenance and Service This part explains how to service the unit safely. Chapter 2: Assembly and Disassembly This part explains the assembly and disassembly of the error codes not shown in this manual except the new SSSWs.../parameters added to this manual. Chapter 4: Appendix This part explains the informations of the optional products and user data flow. • For more details of user operations and user reports, see ...
Service Manual
Page 5
... 1. 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. 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. 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. ATTENTION TO BE PAID...
... 1. 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. 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. 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. ATTENTION TO BE PAID...
Service Manual
Page 28
...shock In order to prevent any such solvents, be sure to check that there is dangerous to wear some kind of in any moving parts. 2-1 Parts which are generally likely to cause electrical shock are as a wrist strap, etc. Before using solvents such as cartridges, etc., into fire... power has been switched off, for LBP engines) Fire It is sufficient ventilation when working with local laws and regulations. MultiPASS C755 Chapter 2: Assembly and Disassembly 1. General high temperature components are not caught in accordance with solvents. Also, take care that requires disassembly.
...shock In order to prevent any such solvents, be sure to check that there is dangerous to wear some kind of in any moving parts. 2-1 Parts which are generally likely to cause electrical shock are as a wrist strap, etc. Before using solvents such as cartridges, etc., into fire... power has been switched off, for LBP engines) Fire It is sufficient ventilation when working with local laws and regulations. MultiPASS C755 Chapter 2: Assembly and Disassembly 1. General high temperature components are not caught in accordance with solvents. Also, take care that requires disassembly.
Service Manual
Page 29
... deformed. The following materials may be employed. • Use anti-static bags for the purpose of grounding metallic parts of the main unit. In particular, flat cables are vulnerable to damage by electrostatic discharge. MultiPASS C755 Chapter 2: Assembly and Disassembly 1.2 General Cautions Damage due to electrostatic discharge This machine contains contact sensors and...
... deformed. The following materials may be employed. • Use anti-static bags for the purpose of grounding metallic parts of the main unit. In particular, flat cables are vulnerable to damage by electrostatic discharge. MultiPASS C755 Chapter 2: Assembly and Disassembly 1.2 General Cautions Damage due to electrostatic discharge This machine contains contact sensors and...
Service Manual
Page 30
If ink is leaking, the power must be damaged. Doing so may soil the main unit, working surfaces, your hands and clothes, etc. MultiPASS C755 Chapter 2: Assembly and Disassembly 1.3 Product-Inherent Cautions Prevention of clothes. The ink is written on the BJ cartridge label. In such a case, let the...the BJ ink cartridge nozzle, the ink pad, head cap, head wiper and waste ink pad. This means that, if the ink leaks, mechanical parts should accidentally get into someone's eyes, rinse the affected eye with tissue paper so that you will be re-initialised, be wiped with a dampened ...
If ink is leaking, the power must be damaged. Doing so may soil the main unit, working surfaces, your hands and clothes, etc. MultiPASS C755 Chapter 2: Assembly and Disassembly 1.3 Product-Inherent Cautions Prevention of clothes. The ink is written on the BJ cartridge label. In such a case, let the...the BJ ink cartridge nozzle, the ink pad, head cap, head wiper and waste ink pad. This means that, if the ink leaks, mechanical parts should accidentally get into someone's eyes, rinse the affected eye with tissue paper so that you will be re-initialised, be wiped with a dampened ...
Service Manual
Page 31
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 Document feed motor Pick up roller Lifting plate Document eject roller Document feed roller Paper feed motor Paper eject roller Document feed section Carriage motor Carriage belt Paper feed roller Document path Paper path Printer section Paper feed section Figure 2-2 Mechanical Layout 2-4
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 Document feed motor Pick up roller Lifting plate Document eject roller Document feed roller Paper feed motor Paper eject roller Document feed section Carriage motor Carriage belt Paper feed roller Document path Paper path Printer section Paper feed section Figure 2-2 Mechanical Layout 2-4
Service Manual
Page 32
...: Detects the carriage position and purge unit status. PCNT board OPCNT board Power supply unit SCNT board Figure 2-3 Electrical Layout 2-5 NCU board MultiPASS C755 Chapter 2: Assembly and Disassembly The electrical parts are laid out as follows. • SCNT board system control • PCNT board printer control • NCU board interface with telephone line...
...: Detects the carriage position and purge unit status. PCNT board OPCNT board Power supply unit SCNT board Figure 2-3 Electrical Layout 2-5 NCU board MultiPASS C755 Chapter 2: Assembly and Disassembly The electrical parts are laid out as follows. • SCNT board system control • PCNT board printer control • NCU board interface with telephone line...
Service Manual
Page 33
...) Ink sensor (20) Carriage motor (18) Pick-up roller (15) Spur unit (21) Figure 2-4 Disassembly Work-Flow 2-6 In order to replace parts, you need to confirm which parts have to be removed. 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.
...) Ink sensor (20) Carriage motor (18) Pick-up roller (15) Spur unit (21) Figure 2-4 Disassembly Work-Flow 2-6 In order to replace parts, you need to confirm which parts have to be removed. 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.
Service Manual
Page 34
The front part of the cover is fastened with tabs, so it needs to be pulled forward and then lifted up. When attaching the cover, fit the tabs in the diagram and prise loose the tabs. a d c b Figure 2-5 Disassembly 1 NOTE To remove the upper cover, insert the tool into the two holes shown in first. 2-7 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). MultiPASS C755 Chapter 2: Assembly and Disassembly 2.3 Disassembly Procedure Disassembly 1.
The front part of the cover is fastened with tabs, so it needs to be pulled forward and then lifted up. When attaching the cover, fit the tabs in the diagram and prise loose the tabs. a d c b Figure 2-5 Disassembly 1 NOTE To remove the upper cover, insert the tool into the two holes shown in first. 2-7 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). MultiPASS C755 Chapter 2: Assembly and Disassembly 2.3 Disassembly Procedure Disassembly 1.
Service Manual
Page 37
MultiPASS C755 Chapter 2: Assembly and Disassembly NOTE Caution when replacing SCNT board. Before using the SCNT board, remember to short the jumper plug. (4) After installing the new ... All Clear. Before turning off the power, be wiped clean when the power is not shorted, in order to prevent unnecessary battery consumption while the parts are in the warehouse. a) Caution before you printed out earlier. 2-10 a-1) Image data stored in image memory Caution Image data stored in the Event of...
MultiPASS C755 Chapter 2: Assembly and Disassembly NOTE Caution when replacing SCNT board. Before using the SCNT board, remember to short the jumper plug. (4) After installing the new ... All Clear. Before turning off the power, be wiped clean when the power is not shorted, in order to prevent unnecessary battery consumption while the parts are in the warehouse. a) Caution before you printed out earlier. 2-10 a-1) Image data stored in image memory Caution Image data stored in the Event of...
Service Manual
Page 40
MultiPASS C755 Chapter 2: Assembly and Disassembly Disassembly 7. Therefore, when replacing the operation panel assembly, you need to purchase the operation panel unit and operation panel sheet and ... the two screws (a). (3) Remove the operation panel (b). Figure 2-11 Operation Panel Sheet Attachment 2-13 b a Figure 2-10 Disassembly 7 NOTE Attachment of operation panel sheet The service part unit configuration of the operation panel, adjust the position and then stick it will be used with the operation panel sheet attached.
MultiPASS C755 Chapter 2: Assembly and Disassembly Disassembly 7. Therefore, when replacing the operation panel assembly, you need to purchase the operation panel unit and operation panel sheet and ... the two screws (a). (3) Remove the operation panel (b). Figure 2-11 Operation Panel Sheet Attachment 2-13 b a Figure 2-10 Disassembly 7 NOTE Attachment of operation panel sheet The service part unit configuration of the operation panel, adjust the position and then stick it will be used with the operation panel sheet attached.
Service Manual
Page 52
... For the cleaning procedure, see 2. Document feed/eject roller When document feed/eject performance deteriorates. HOW TO CLEAN PARTS on page 3-4. White sheet When the color or brightness of the copied or transmitted image is not normal. When...document separation performance deteriorates. Scanning glass (contact sensor) When black vertical stripes appear in the ink tank being used has run out. MultiPASS C755 Chapter 3: Maintenance & Service 1. When ink adheres to the platen. Separation roller When document separation performance deteriorates. MAINTENANCE LIST 1.1 ...
... For the cleaning procedure, see 2. Document feed/eject roller When document feed/eject performance deteriorates. HOW TO CLEAN PARTS on page 3-4. White sheet When the color or brightness of the copied or transmitted image is not normal. When...document separation performance deteriorates. Scanning glass (contact sensor) When black vertical stripes appear in the ink tank being used has run out. MultiPASS C755 Chapter 3: Maintenance & Service 1. When ink adheres to the platen. Separation roller When document separation performance deteriorates. MAINTENANCE LIST 1.1 ...
Service Manual
Page 53
... Checksum, and if any data in SRAM has been lost, adjustment of the copy image or transmission image is not normal. MultiPASS C755 Chapter 3: Maintenance & Service 1.3 Periodic Inspection None 1.4 Periodic Replacement Parts None 1.5 Adjustment Items The following adjustments must be adjusted via button operation, is also adjusted automatically in the following cases: •...
... Checksum, and if any data in SRAM has been lost, adjustment of the copy image or transmission image is not normal. MultiPASS C755 Chapter 3: Maintenance & Service 1.3 Periodic Inspection None 1.4 Periodic Replacement Parts None 1.5 Adjustment Items The following adjustments must be adjusted via button operation, is also adjusted automatically in the following cases: •...
Service Manual
Page 54
MultiPASS C755 Chapter 3: Maintenance & Service 1.6 General Tools Tool Phillips screwdriver Flat bladed screwdriver Precision Phillips screwdriver Precision flat bladed screwdriver Tweezers Isopropyl alcohol (IPA) Pliers, needle nose 1.7 .../inserting screws Removing/inserting screws Removing plastic tabs Removing coil spring Cleaning the cleaning location Driving retaining ring Use Apply to specified parts Apply to specified parts Apply to specified parts Apply to scratch any precision screwdriver with a tip diameter of 1.5 mm or less would do instead. TKC-0953 CK-8006 CK-0562...
MultiPASS C755 Chapter 3: Maintenance & Service 1.6 General Tools Tool Phillips screwdriver Flat bladed screwdriver Precision Phillips screwdriver Precision flat bladed screwdriver Tweezers Isopropyl alcohol (IPA) Pliers, needle nose 1.7 .../inserting screws Removing/inserting screws Removing plastic tabs Removing coil spring Cleaning the cleaning location Driving retaining ring Use Apply to specified parts Apply to specified parts Apply to specified parts Apply to scratch any precision screwdriver with a tip diameter of 1.5 mm or less would do instead. TKC-0953 CK-8006 CK-0562...
Service Manual
Page 55
... when Using IPA When cleaning with IPA (isopropyl alcohol). NOTE If the parts above are very dirty, wipe with a cloth moistened with IPA, take care to evaporate. 3-4 MultiPASS C755 Chapter 3: Maintenance & 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...
... when Using IPA When cleaning with IPA (isopropyl alcohol). NOTE If the parts above are very dirty, wipe with a cloth moistened with IPA, take care to evaporate. 3-4 MultiPASS C755 Chapter 3: Maintenance & 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...
Service Manual
Page 68
... position error Cause: Foreign body in this error occurs in carriage section. MultiPASS C755 Chapter 3: Maintenance & Service "CARTRIDGE JAMMED" Printing position correction failed Cause: Carriage movement prevented by one that has a home position sensor attached. (3) Replace the PCNT board. Damaged shaft. Parts deformed. (Carriage or guide frame) Insufficient grease. Cause: Bi-directional print...
... position error Cause: Foreign body in this error occurs in carriage section. MultiPASS C755 Chapter 3: Maintenance & Service "CARTRIDGE JAMMED" Printing position correction failed Cause: Carriage movement prevented by one that has a home position sensor attached. (3) Replace the PCNT board. Damaged shaft. Parts deformed. (Carriage or guide frame) Insufficient grease. Cause: Bi-directional print...
Service Manual
Page 70
MultiPASS C755 Chapter 3: Maintenance & Service "DOC. Solution: Divide the document and send or copy each part separately. Contact the other party. "INSTALL BC-33" cause: You tried to make a color copy in HI RES. Cause: You tried to make a color copy ..." (#003) Cause: The document is below the limit mark and press the Start or Resume button. 3-19 Have them divide the document and send each part separately. Solution: Remove the Black BJ cartridge and install the Color BJ cartridge. If you do not have this BJ cartridge available, you can convert...
MultiPASS C755 Chapter 3: Maintenance & Service "DOC. Solution: Divide the document and send or copy each part separately. Contact the other party. "INSTALL BC-33" cause: You tried to make a color copy in HI RES. Cause: You tried to make a color copy ..." (#003) Cause: The document is below the limit mark and press the Start or Resume button. 3-19 Have them divide the document and send each part separately. Solution: Remove the Black BJ cartridge and install the Color BJ cartridge. If you do not have this BJ cartridge available, you can convert...
Service Manual
Page 71
...the contents of registered numbers and make any corrections needed, then try again. Try again later. Solution: Press V to send too many documents. MultiPASS C755 Chapter 3: Maintenance & Service "M INK EMPTY" Cause: Solution: The Mazenta BJ tank in the Color or Photo BJ cartridge is full because ... any documents which are stored in memory. Cause: The fax's memory is not set incorrectly. Solution: Divide the document and send each part separately. "NO TEL #" (#022) Cause: The button you dialed the correct number. Solution: Print a list of the one-touch or...
...the contents of registered numbers and make any corrections needed, then try again. Try again later. Solution: Press V to send too many documents. MultiPASS C755 Chapter 3: Maintenance & Service "M INK EMPTY" Cause: Solution: The Mazenta BJ tank in the Color or Photo BJ cartridge is full because ... any documents which are stored in memory. Cause: The fax's memory is not set incorrectly. Solution: Divide the document and send each part separately. "NO TEL #" (#022) Cause: The button you dialed the correct number. Solution: Print a list of the one-touch or...
Service Manual
Page 79
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. ##672 [TX] The protocol did not ... the called party was not able to inhibit the V.8/V.34 protocol on calling. ##673 [RX] The protocol did not move from phase 2 to be detected. MultiPASS C755 Chapter 3: Maintenance & Service d) Recovery methods for codes indicated as "New" Note, however, the following supplementary information, as follows in the error occurs: (1) Select 3. INK ABS...
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. ##672 [TX] The protocol did not ... the called party was not able to inhibit the V.8/V.34 protocol on calling. ##673 [RX] The protocol did not move from phase 2 to be detected. MultiPASS C755 Chapter 3: Maintenance & Service d) Recovery methods for codes indicated as "New" Note, however, the following supplementary information, as follows in the error occurs: (1) Select 3. INK ABS...
Service Manual
Page 81
MultiPASS C755 Chapter 3: Maintenance & 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 ... board. • No sound from the speaker (1) Check the connection of the speaker and SCNT board (JSPK1). (2) Replace the speaker. (3) Replace the SCNT board. 3-30 Part of the LCD panel does not display anything. (1) Check the connection between the Operation panel unit and SCNT board (JPANEL1). (2) Replace the Operation panel unit...
MultiPASS C755 Chapter 3: Maintenance & 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 ... board. • No sound from the speaker (1) Check the connection of the speaker and SCNT board (JSPK1). (2) Replace the speaker. (3) Replace the SCNT board. 3-30 Part of the LCD panel does not display anything. (1) Check the connection between the Operation panel unit and SCNT board (JPANEL1). (2) Replace the Operation panel unit...