User's Guide
Page 70
... T642 and T644), optional 250- Set the paper type to MP Feeder, Manual Env, or Env Feeder depending on the transparencies you are considering before buying large quantities. You can print directly on transparencies designed for use in laser printers....Lexmark Web site at www.lexmark.com. For detailed information, see the Card Stock & Label Guide, which is 25% or less. Envelopes with 100% cotton content must be set to Transparency to help prevent jams. Check with the printer before buying large quantities. Always print samples on the source you are using with laser printers...
... T642 and T644), optional 250- Set the paper type to MP Feeder, Manual Env, or Env Feeder depending on the transparencies you are considering before buying large quantities. You can print directly on transparencies designed for use in laser printers....Lexmark Web site at www.lexmark.com. For detailed information, see the Card Stock & Label Guide, which is 25% or less. Envelopes with 100% cotton content must be set to Transparency to help prevent jams. Check with the printer before buying large quantities. Always print samples on the source you are using with laser printers...
User's Guide
Page 121
... repair not included in transit to a Lexmark designated location. Remote technical support is available are substantially used with Lexmark user's guides, manuals, instructions or guidance. • Unsuitable physical... media (unless directed otherwise by Lexmark). Limitation of liability Statement of prints produced by any maintenance items included with the printer shall end earlier if it, ... by a third party, supplies or parts • Products, supplies, parts, materials (such as warranted during the warranty period, contact a Remarketer or Lexmark for exchange is not free of ,...
... repair not included in transit to a Lexmark designated location. Remote technical support is available are substantially used with Lexmark user's guides, manuals, instructions or guidance. • Unsuitable physical... media (unless directed otherwise by Lexmark). Limitation of liability Statement of prints produced by any maintenance items included with the printer shall end earlier if it, ... by a third party, supplies or parts • Products, supplies, parts, materials (such as warranted during the warranty period, contact a Remarketer or Lexmark for exchange is not free of ,...
Service Manual
Page 8
... voltage power supply 5-10 Output expander control board 5-11 StapleSmart finisher 5-12 Preventive maintenance 6-1 Safety inspection guide 6-1 Lubrication specifications 6-1 Scheduled maintenance 6-1 Maintenance kit 6-1 Parts catalog 7-1 How to use this parts catalog 7-1 Assembly 1: Covers 7-2 Assembly 2: Frame 1 7-4 Assembly 3: Frame 2 7-6 Assembly 4: Frame 3 7-8 Assembly 5: Printhead 7-10 Assembly 6: Paper feed-autocompensator 7-12 ...7-22 Assembly 12: Hot roll fuser 7-24 Assembly 13: Transfer/charging 7-26 Assembly 14: Electronics-power supplies 7-28 viii Service Manual
... voltage power supply 5-10 Output expander control board 5-11 StapleSmart finisher 5-12 Preventive maintenance 6-1 Safety inspection guide 6-1 Lubrication specifications 6-1 Scheduled maintenance 6-1 Maintenance kit 6-1 Parts catalog 7-1 How to use this parts catalog 7-1 Assembly 1: Covers 7-2 Assembly 2: Frame 1 7-4 Assembly 3: Frame 2 7-6 Assembly 4: Frame 3 7-8 Assembly 5: Printhead 7-10 Assembly 6: Paper feed-autocompensator 7-12 ...7-22 Assembly 12: Hot roll fuser 7-24 Assembly 13: Transfer/charging 7-26 Assembly 14: Electronics-power supplies 7-28 viii Service Manual
Service Manual
Page 10
4061-xx0 Printing a directory list A-14 Printing confidential and held jobs A-14 Linking trays A-17 Identifying and linking output bins A-18 Linking output bins A-20 Index I-1 Part number index I-9 x Service Manual
4061-xx0 Printing a directory list A-14 Printing confidential and held jobs A-14 Linking trays A-17 Identifying and linking output bins A-18 Linking output bins A-20 Index I-1 Part number index I-9 x Service Manual
Service Manual
Page 20
... illustrations and part numbers for making printer adjustments and removing and installing FRUs. 5. Diagnostic information contains an error indicator table, symptom tables, and service checks used to prevent problems. 7. Warning... the maintenance approach used to repair it. CAUTION: When you are listed in the area of printer problems. 4. Definitions Note: A note provides additional information. 4061-xx0 Preface This manual contains maintenance procedures for service personnel. CAUTION: A caution identifies something that might damage the product hardware or software. It is...
... illustrations and part numbers for making printer adjustments and removing and installing FRUs. 5. Diagnostic information contains an error indicator table, symptom tables, and service checks used to prevent problems. 7. Warning... the maintenance approach used to repair it. CAUTION: When you are listed in the area of printer problems. 4. Definitions Note: A note provides additional information. 4061-xx0 Preface This manual contains maintenance procedures for service personnel. CAUTION: A caution identifies something that might damage the product hardware or software. It is...
Service Manual
Page 21
... laser printers are not available in the following options are available. Use the service error codes, user status messages, user error messages, service checks, and diagnostic aids to verify the repair. After you to most computer networks. See "Start" on page 2-1. Options The following models: Model name Lexmark T640 Lexmark T640n Lexmark T642 Lexmark T642n Lexmark T644 Lexmark T644n...
... laser printers are not available in the following options are available. Use the service error codes, user status messages, user error messages, service checks, and diagnostic aids to verify the repair. After you to most computer networks. See "Start" on page 2-1. Options The following models: Model name Lexmark T640 Lexmark T640n Lexmark T642 Lexmark T642n Lexmark T644 Lexmark T644n...
Service Manual
Page 40
4061-xx0 Acronyms BLDC CRU CSU DIMM DRAM DVM EDO EEPROM EP EPROM ESD FRU GB HCIT HVPS ITC LASER LCD LED LVPS MPF MROM MS NVRAM OEM OPT PC pel POR POST PP PWM RIP ROM SDRAM SIMM SRAM UAT UPR V ac V dc VOM ... feeder Masked Read Only Memory Microswitch Nonvolatile Random Access Memory Original Equipment Manufacturer Optical Sensor Photoconductor Picture element Power-On Reset Power-On Self Test Parts Packet Pulse Width Modulation Raster Imaging Processor Read Only Memory Synchronous Dynamic Random Access Memory Single Inline Memory Module Static Random Access Memory Universally Adjustable...
4061-xx0 Acronyms BLDC CRU CSU DIMM DRAM DVM EDO EEPROM EP EPROM ESD FRU GB HCIT HVPS ITC LASER LCD LED LVPS MPF MROM MS NVRAM OEM OPT PC pel POR POST PP PWM RIP ROM SDRAM SIMM SRAM UAT UPR V ac V dc VOM ... feeder Masked Read Only Memory Microswitch Nonvolatile Random Access Memory Original Equipment Manufacturer Optical Sensor Photoconductor Picture element Power-On Reset Power-On Self Test Parts Packet Pulse Width Modulation Raster Imaging Processor Read Only Memory Synchronous Dynamic Random Access Memory Single Inline Memory Module Static Random Access Memory Universally Adjustable...
Service Manual
Page 82
...occurs and the toner low alarm is installed. Note: If the user installed the incompatible device to be downloaded. 2-42 Service Manual This message displays for both resource and PostScript Disk operators when the disk is installed. It is formatted. 64 .xx Unsupported Disk ...maintain the print quality and reliability of the printer. The disk is marked defective and normal printer operations continue. The disk is marked as bad and normal operation continues. No other printer functions are not allowed with the printer code. The parts are not allowed until the disk is marked ...
...occurs and the toner low alarm is installed. Note: If the user installed the incompatible device to be downloaded. 2-42 Service Manual This message displays for both resource and PostScript Disk operators when the disk is installed. It is formatted. 64 .xx Unsupported Disk ...maintain the print quality and reliability of the printer. The disk is marked defective and normal printer operations continue. The disk is marked as bad and normal operation continues. No other printer functions are not allowed with the printer code. The parts are not allowed until the disk is marked ...
Service Manual
Page 94
...; Make sure the redrive door is complete closed. • Check the fuser for any signs of debris or pieces of paper or media. 2-54 Service Manual See "Fuser assembly removal" on page 4-26. • Turn media over to "Fuser exit sensor service check" on page 2-92. Repair the redrive as necessary.... Fuser page count between 0 and 99,999. Check the fuser and area around the fuser assembly for any signs of damage, a loose spring, or binding parts.
...; Make sure the redrive door is complete closed. • Check the fuser for any signs of debris or pieces of paper or media. 2-54 Service Manual See "Fuser assembly removal" on page 4-26. • Turn media over to "Fuser exit sensor service check" on page 2-92. Repair the redrive as necessary.... Fuser page count between 0 and 99,999. Check the fuser and area around the fuser assembly for any signs of damage, a loose spring, or binding parts.
Service Manual
Page 96
... count between 100,000 and 199,999. Page may be installed for any signs of debris or pieces of damage, a loose spring, or binding parts. Fuser page count between 100,000 and 199,999. Exit sensor assembly. Fuser page count between 100,000 and 199,999. Check the fuser and...for correct installation and alignment. • The fuser exit sensor may not have been cleared from front or rear of paper or media. 2-56 Service Manual Something is covering narrow media sensor during warm up . A page may not be dislodged or damaged. Fuser page count between 100,000 and 199,...
... count between 100,000 and 199,999. Page may be installed for any signs of debris or pieces of damage, a loose spring, or binding parts. Fuser page count between 100,000 and 199,999. Exit sensor assembly. Fuser page count between 100,000 and 199,999. Check the fuser and...for correct installation and alignment. • The fuser exit sensor may not have been cleared from front or rear of paper or media. 2-56 Service Manual Something is covering narrow media sensor during warm up . A page may not be dislodged or damaged. Fuser page count between 100,000 and 199,...
Service Manual
Page 98
...the narrow media sensor. • The narrow media sensor or flag may have been cleared from front or rear of the printer, a partial piece of damage, a loose spring, or binding parts. Exit sensor may be functioning properly. Fuser page count between 200,000 and 299,999. A page may be torn ...000 and 299,999. • If page is complete closed. • Check the fuser for any signs of paper or media. 2-58 Service Manual Page is keeping the exit sensor covered. Check the fuser and area around the fuser assembly for correct installation and alignment. • The fuser exit...
...the narrow media sensor. • The narrow media sensor or flag may have been cleared from front or rear of the printer, a partial piece of damage, a loose spring, or binding parts. Exit sensor may be functioning properly. Fuser page count between 200,000 and 299,999. A page may be torn ...000 and 299,999. • If page is complete closed. • Check the fuser for any signs of paper or media. 2-58 Service Manual Page is keeping the exit sensor covered. Check the fuser and area around the fuser assembly for correct installation and alignment. • The fuser exit...
Service Manual
Page 100
... sensor assembly. If any signs of debris or pieces of damage, a loose spring, or binding parts. Page is covering the exit sensor during warm up . Fuser page count between 300,000 and 399...• Check upper redrive diverter and diverter spring for any signs of paper or media. 2-60 Service Manual Page is covering the narrow media sensor during warm up . A page may be dislodged or damaged. ...Exit sensor may have been cleared from front or rear of the printer, a partial piece of a page may be torn off in fuser exit or redrive area. •...
... sensor assembly. If any signs of debris or pieces of damage, a loose spring, or binding parts. Page is covering the exit sensor during warm up . Fuser page count between 300,000 and 399...• Check upper redrive diverter and diverter spring for any signs of paper or media. 2-60 Service Manual Page is covering the narrow media sensor during warm up . A page may be dislodged or damaged. ...Exit sensor may have been cleared from front or rear of the printer, a partial piece of a page may be torn off in fuser exit or redrive area. •...
Service Manual
Page 102
... from a prior jam. Fuser page count between 400,000 and 499,999. If any signs of debris or pieces of paper or media. 2-62 Service Manual A page may be dislodged or damaged. Page is keeping the exit sensor in a covered position. Fuser page count between 400,000 and 499,999. Exit... sensor may have been cleared from front or rear of the printer, a partial piece of damage, a loose spring, or binding parts. Fuser page count between 400,000 and 499,999. Go to "Fuser exit sensor service check" on page 4-26. • Turn...
... from a prior jam. Fuser page count between 400,000 and 499,999. If any signs of debris or pieces of paper or media. 2-62 Service Manual A page may be dislodged or damaged. Page is keeping the exit sensor in a covered position. Fuser page count between 400,000 and 499,999. Exit... sensor may have been cleared from front or rear of the printer, a partial piece of damage, a loose spring, or binding parts. Fuser page count between 400,000 and 499,999. Go to "Fuser exit sensor service check" on page 4-26. • Turn...
Service Manual
Page 104
... complete closed. • Check the fuser for any signs of damage, a loose spring, or binding parts. Something is keeping the exit sensor in fuser exit or redrive area. • Make sure the redrive... necessary. • Check any signs of debris or pieces of paper or media. 2-64 Service Manual Check the fuser and area around the fuser assembly for any installed output options(s) that may be ... and alignment. • The fuser exit sensor may have been cleared from front or rear of the printer, a partial piece of a page may be torn off in the fuser covering the narrow media sensor...
... complete closed. • Check the fuser for any signs of damage, a loose spring, or binding parts. Something is keeping the exit sensor in fuser exit or redrive area. • Make sure the redrive... necessary. • Check any signs of debris or pieces of paper or media. 2-64 Service Manual Check the fuser and area around the fuser assembly for any installed output options(s) that may be ... and alignment. • The fuser exit sensor may have been cleared from front or rear of the printer, a partial piece of a page may be torn off in the fuser covering the narrow media sensor...
Service Manual
Page 106
...signs of paper or media. Exit sensor may have been cleared from front or rear of the printer, a partial piece of a page may be torn off in the fuser covering the narrow media ... necessary. • Check any signs of debris or pieces of damage, a loose spring, or binding parts. Exit sensor assembly. Something is not available. 4061-xx0 User attendance messages-paper jams and paper handling...warm up . Fuser page count is not available. If any signs of paper or media. 2-66 Service Manual See "Fuser assembly removal" on page 4-26. • Turn media over to "Fuser exit sensor service...
...signs of paper or media. Exit sensor may have been cleared from front or rear of the printer, a partial piece of a page may be torn off in the fuser covering the narrow media ... necessary. • Check any signs of debris or pieces of damage, a loose spring, or binding parts. Exit sensor assembly. Something is not available. 4061-xx0 User attendance messages-paper jams and paper handling...warm up . Fuser page count is not available. If any signs of paper or media. 2-66 Service Manual See "Fuser assembly removal" on page 4-26. • Turn media over to "Fuser exit sensor service...
Service Manual
Page 112
... one or more than a single output option is installed, check each of loose or damaged parts. Check the voltages on page 3-21. Make sure the option(s) are correct, reinstall the ... option. If the voltages are incorrect, replace the failing autoconnect assembly. 2-72 Service Manual If the toroid was moved, make sure to move it back to make sure the... service checks. • Paper feed problems (especially paper jams): Go to a particular area of the printer. FRU 1 5-Bin mailbox option 2 Mechanical linkage assembly Action Check the autoconnects, cables, and connectors of...
... one or more than a single output option is installed, check each of loose or damaged parts. Check the voltages on page 3-21. Make sure the option(s) are correct, reinstall the ... option. If the voltages are incorrect, replace the failing autoconnect assembly. 2-72 Service Manual If the toroid was moved, make sure to move it back to make sure the... service checks. • Paper feed problems (especially paper jams): Go to a particular area of the printer. FRU 1 5-Bin mailbox option 2 Mechanical linkage assembly Action Check the autoconnects, cables, and connectors of...
Service Manual
Page 114
... board and check the resistance of the motor on the board. If correct, replace the mechanical linkage/ DC motor assembly. 2-74 Service Manual Make sure the sensor flag is contacting the latch correctly. If the sensor flag is found, replace the mechanical linkage/DC motor assembly. ...cover spring Shaft assemblies 2 Bin x solenoid assembly Control board 3 Mechanical linkage Motor assembly Action Check all the bin parts for correct operation and wear, broken gear teeth, or damaged parts. If correct, replace the control board. Note: If the DC motor is shorted, it is functioning properly, ...
... board and check the resistance of the motor on the board. If correct, replace the mechanical linkage/ DC motor assembly. 2-74 Service Manual Make sure the sensor flag is contacting the latch correctly. If the sensor flag is found, replace the mechanical linkage/DC motor assembly. ...cover spring Shaft assemblies 2 Bin x solenoid assembly Control board 3 Mechanical linkage Motor assembly Action Check all the bin parts for correct operation and wear, broken gear teeth, or damaged parts. If correct, replace the control board. Note: If the DC motor is shorted, it is functioning properly, ...
Service Manual
Page 118
... through 950.60 EPROM mismatch failure Warning: When replacing any one of troubleshooting components. Note: Before proceeding with the part number in the table below: Model 4061-000 (non-network) 4061-010 (network) 4061-200 (non-network) 4061...bar code Q0016021 Q0016001 Q0016022 Q0016002 Q0016023 Q0016003 Corresponds to identify the board with this procedure is not followed, the printer will be returned to step 3. If the error remains, go to step 4. It must be rendered inoperable.... interconnect card assembly has been recently replaced, go to step 5. 2-78 Service Manual
... through 950.60 EPROM mismatch failure Warning: When replacing any one of troubleshooting components. Note: Before proceeding with the part number in the table below: Model 4061-000 (non-network) 4061-010 (network) 4061-200 (non-network) 4061...bar code Q0016021 Q0016001 Q0016022 Q0016002 Q0016023 Q0016003 Corresponds to identify the board with this procedure is not followed, the printer will be returned to step 3. If the error remains, go to step 4. It must be rendered inoperable.... interconnect card assembly has been recently replaced, go to step 5. 2-78 Service Manual
Service Manual
Page 120
... or broken. If incorrect, check the continuity of the printer where you begin, or use caution if the printer must receive power in the area of the line cord and replace if necessary. See "Handling ESD-sensitive parts" on the cable. Unplug the line cord from hazardous ... the voltage is incorrect, inform the customer. If a high-capacity input tray is incorrect, replace the system board. If the base printer continues to step 3. 2-80 Service Manual If incorrect, repair as , a damaged plug, or cut or damaged cord. If the voltage measures greater than +1.0 V dc, replace...
... or broken. If incorrect, check the continuity of the printer where you begin, or use caution if the printer must receive power in the area of the line cord and replace if necessary. See "Handling ESD-sensitive parts" on the cable. Unplug the line cord from hazardous ... the voltage is incorrect, inform the customer. If a high-capacity input tray is incorrect, replace the system board. If the base printer continues to step 3. 2-80 Service Manual If incorrect, repair as , a damaged plug, or cut or damaged cord. If the voltage measures greater than +1.0 V dc, replace...
Service Manual
Page 136
... diagnostics for proper operation. For example: 242.xx is found , replace the high-capacity feeder option control board. Repair or replace parts as necessary. If the test fails, disconnect the paper low switch cable from the printer and check the pass thru sensor and flag for proper operation of broken or damaged... motor assembly. Check the drive roll assembly and skewed backup roller for shorts from the diagnostics menu. If correct, replace the switch cable. 2-96 Service Manual The voltage measures +24 V dc. If incorrect, replace the tray x option pass thru sensor assembly.
... diagnostics for proper operation. For example: 242.xx is found , replace the high-capacity feeder option control board. Repair or replace parts as necessary. If the test fails, disconnect the paper low switch cable from the printer and check the pass thru sensor and flag for proper operation of broken or damaged... motor assembly. Check the drive roll assembly and skewed backup roller for shorts from the diagnostics menu. If correct, replace the switch cable. 2-96 Service Manual The voltage measures +24 V dc. If incorrect, replace the tray x option pass thru sensor assembly.