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Lexmark Optra T640 T640n T642 T642n T644 T644n 4061

Tags : LexmarkOptraT6404061-000T640n4061-010T6424061-200T642n4061-210T6444061-400T644n4061-4104061-xx0 
Lexmark Optra T640 T640n T642 T642n T644 T644n 4061 Manuel de service

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Description

Lexmark Optra T640 T640n T642 T642n T644 T644n 4061-xx0 Service Manual
Edition: April 6, 2007

Lexmark T640 Non-network 4061-000
Lexmark T640n Network 4061-010
Lexmark T642 Non-network 4061-200
Lexmark T642n Network 4061-210
Lexmark T644 Non-network 4061-400
Lexmark T644n Network 4061-410

Laser notices xi
Safety information xvii
Preface xx
Definitions . .  v-xx
General information .1-1
Maintenance approach .  . 1-1
Options . 1-2
Configured models . .1-3
Specifications 1-4
Resolution . 1-4
Data streams . 1-4
Print speed and performance print speed .1-4
Performance. 1-4
Time to first print . 1-4
Memory configuration .1-5
Operating clearances .1-5
Dimensions .  1-6
Power requirements 1-7
Electrical specifications .  1-7
Environment . .  1-8
Acoustics 1-8
Media specifications .1-9
Paper and specialty media guidelines . .1-9
Supported print media . .1-9
Selecting print media 1-16
Paper . 1-16
Paper characteristics . 1-16
Weight 1-16
Unacceptable paper 1-16
Transparencies . 1-17
Selecting transparencies 1-17
Envelopes . 1-17
Labels. 1-18
Card stock . 1-19
Storing print media .1-19
Avoiding jams 1-20
Print area . 1-20
Tools required . 1-20
Acronyms . 1-21
Diagnostic information .2-1
Start . .  . 2-1
Symptom tables 2-1
Service errors (9xx.xx’s)2-1
User status and attendance messages 2-1
Additional information2-1
Understanding the printer operator panel . 2-2
Understanding the menus . .2-3
Power-On Self Test (POST) sequence 2-4
Symptom tables .2-5
Base printer symptoms .2-5
High-capacity feeder (2000-sheet) symptoms . .2-5
Paper tray symptoms . ..2-6
Duplex option symptoms .2-6
Envelope feeder symptoms . ..2-6
Output expander .2-6
StapleSmart finisher ..2-7
Messages and error codes . .  . .2-8
Service error codes .2-8
User status displays ..2-31
User attendance messages . .2-32
User line 2 link messages . .2-43
Check device connection messages . .2-43
User attendance messages—paper jams and paper handling errors (2xx.xx) .2-44
Service checks .2-72
5-Bin mailbox service check . ..2-72
900.xx Error code service check .  .2-75
927.xx Fan service check .2-76
Main fan. .2-76
Cartridge fan service check.2-76
950.00 through 950.29 EPROM mismatch failure . .2-77
950.30 through 950.60 EPROM mismatch failure .2-78
Charge roll service check .  .2-79
Cover closed switch/cable service check . .  .2-80
Dead machine service check .2-80
Duplex option service check . .2-82
Envelope feeder service check ..2-84
Fuser service checks . ..2-87
920.xx—Cold fuser service check. .2-87
922.xx—Cold fuser check . .2-89
923.xx—Hot fuser service check.2-90
924.xx—Hot fuser service check.2-91
925.xx—Hot fuser service check.2-91
Fuser exit sensor service check . ..2-92
Fuser narrow media sensor service check . ..2-93
Fuser solenoid service check .2-94
High-capacity feeder input tray service check .  .2-95
High-capacity output stacker service check . ..2-100
Input sensor service check . .  .2-102
Input tray(s) service check . ..2-102
Interconnect card service check . ..2-104
Main drive service check .2-105
Operator panel service check .2-106
One or more operator panel buttons fail . .2-106
No buttons work . .2-106
Operator panel display .2-107
Options service check . ..2-108
Flash Memory Option(s) . .2-108
DRAM Memory Option(s) .2-108
Hard Disk Option. .2-108
Output bin sensor standard tray service check .2-109
Output expander service check .2-110
Paper feed service check . .2-112
Paper size sensing service check . ..2-113
Parallel port service check .2-116
Print quality service check .2-116
Printhead service check .  .2-122
Signature button assembly service check .2-122
StapleSmart finisher service check 2-123
System board service check . .2-126
Toner sensor service check .2-127
Transfer roll service check . 2-128
Diagnostic aids .3-1
Accessing service menus .  3-1
Diagnostics mode . 3-2
Entering Diagnostics mode 3-2
Available tests . 3-2
Exiting Diagnostics mode . .  3-4
REGISTRATION 3-4
Quick Test 3-5
PRINT TESTS . .  3-6
Input source tests. 3-6
Print quality pages (Prt Quality Pgs) 3-6
HARDWARE TESTS 3-7
Panel Test 3-7
Button Test3-7
DRAM Test3-7
CACHE Test. 3-8
Parallel Wrap tests 3-8
Serial Wrap tests . 3-9
DUPLEX TESTS 3-9
Quick Test (duplex) . 3-9
Top Margin (duplex) 3-10
Sensor Test (duplex) . 3-10
Motor Test (duplex) 3-11
Duplex Feed 1 3-12
Duplex Feed 2 3-12
INPUT TRAY TESTS . .3-13
Feed Tests (input tray) 3-13
Sensor Test (input tray) . 3-13
OUTPUT BIN TESTS . 3-14
Feed Tests (output bins) 3-14
Feed To All Bins. 3-14
Sensor Test (standard output bin) . 3-15
Sensor Test (Output Expander) . 3-15
Sensor Test (high capacity output stacker) 3-16
Sensor Tests (5-bin mailbox) . 3-16
Diverter Test3-16
FINISHER TESTS . .  3-17
Staple Test . 3-17
Feed Tests (finisher) . 3-17
Sensor Test (finisher). 3-17
BASE SENSOR TEST .  3-18
DEVICE TESTS 3-18
Quick Disk Test . 3-18
Disk Test/Clean . 3-19
Flash Test . 3-19
PRINTER SETUP .3-20
Defaults . 3-20
Page Count 3-20
Perm Page Count (permanent page count) 3-20
Serial Number 3-20
Envelope Enhance . 3-20
Engine Setting 1 through 4. 3-20
Model Name . .3-20
Configuration ID .3-21
Edge to Edge. .3-21
Parallel strobe adjustment (Par x Strobe Adj) .3-21
EP SETUP . .3-22
EP Defaults .3-22
Fuser Temperature (Fuser Temp). .3-22
Fuser Page Count . .3-22
Warm Up Time . .3-22
Transfer . .3-22
Print Contrast .3-22
Charge Roll .3-22
Gap Adjust. .3-22
EVENT LOG . .3-23
Display Log .3-23
Print Log .3-23
Clear Log.3-24
EXIT DIAGNOSTICS .3-24
Configuration menu (CONFIG MENU) .3-25
Entering Configuration Menu .3-25
Available menus .3-25
Maintenance page count (Maint Cnt Value) . .3-25
Maintenance page counter reset (Reset Maint Cnt) . .3-26
Print quality pages (Prt Quality Pgs) . .3-26
SIZE SENSING . .3-27
Panel Menus . .3-27
PPDS Emulation .3-27
Download Emuls .3-27
Demo Mode . .3-27
Factory Defaults .3-28
Energy Conserve . .3-28
EVENT LOG . .3-28
Paper Prompts . .3-28
Env Prompts . .3-28
Jobs On Disk . .3-28
Disk Encryption . .3-28
Font Sharpening .3-29
LCD Brightness . .3-29
LCD Contrast .3-29
Exit Config Menu .3-29
Additional useful menu locations . .3-29
Hex Trace . .3-29
Menu settings page .3-30
Printing menu settings page . .3-30
Theory .3-31
Autocompensator operation . .3-31
Autoconnect system, paper tray options, envelope feeder—electrical . .3-32
Autoconnect cabling and connectors .3-32
Duplex Option .3-32
Option microcode . .3-32
Print quality troubleshooting . .3-33
Paper feed jams .3-37
Access doors and trays . .3-37
Clearing printer jams . .3-37
250 Paper Jam Check MP Feeder .3-38
260 Paper Jam Check Env Feeder .3-39
23x and 24x jams . .3-40
200 and 201 Paper Jam Remove Cartridge . .3-41
202 Paper Jam Open Rear Door 3-43
23x Paper Jam Open Duplex Rear Door 3-44
270 and 280 Paper Jams 3-45
27x Paper Jam Check Bin x3-45
28x Paper Jam Check Finisher . 3-46
Clearing staple jams . 3-48
Repair information . .4-1
Handling ESD-sensitive parts 4-1
Adjustment procedures . 4-2
Fuser solenoid adjustment 4-2
Gap adjustment 4-2
Printhead assembly adjustment 4-2
Paper alignment assembly adjustment 4-3
Removal procedures . 4-5
Covers removals . 4-5
Fuser wiper cover assembly removal4-5
Redrive cap cover removal . 4-6
Paper support removal. 4-6
Left door removal . 4-7
Redrive door. 4-8
Right cover removal . 4-9
Upper front cover removal . 4-12
Upper front cover latch removal . 4-14
Upper front cover outer bezel removal4-15
Multipurpose feeder/lower front cover assembly removal . 4-16
Left cover handle holder removal4-17
Right cover handle holder removal 4-17
Left and right frame extensions . 4-18
Pass thru plate 4-19
Laser cover removal4-20
Bevel gear removal 4-22
Cartridge duct removal . 4-24
Developer drive assembly removal 4-25
Developer drive coupler kit removal . 4-26
ESD cover removal 4-26
Fuser assembly removal 4-27
Fuser exit sensor removal . 4-29
Fuser exit sensor flag and spring removal . 4-31
Fuser lamp removal 4-33
Fuser narrow media sensor removal . 4-35
Fuser narrow media flag and spring removal 4-37
Fuser to LVPS AC cable removal . 4-39
Fuser top cover removal 4-42
Fuser transfer plate removal . 4-44
Gear release link removal . 4-45
High voltage power supply removal 4-46
Inner paper deflector assembly removal 4-48
Input sensor removal . 4-49
Integrated tray autocompensator assembly removal . 4-50
Integrated tray autocompensator pick roll assembly removal 4-52
Interconnect card assembly removal . 4-54
Low voltage power supply removal 4-55
Main fan removal 4-57
Main drive assembly removal 4-58
MPF arm assembly removal . 4-61
MPF lower paper deflector . 4-62
MPF pick tire removal 4-63
MPF solenoid assembly removal . .4-63
Operator panel board removal . .4-67
Operator panel buttons removal .4-68
Outer shield removal . .4-69
Paper alignment assembly removal . .4-70
Paper bin full sensor flag removal . .4-71
Paper size sensing board removal .4-72
Power takeoff shaft and spring removal .4-73
Printhead removal . .4-74
Redrive assembly removal .4-75
Signature button contact assembly removal . .4-76
System board and inner shield removal .4-77
Toner sensor removal .4-78
Transfer roll assembly removal . .4-78
Upper front cover hinge assembly removal . .4-79
Upper paper deflector assembly removal . .4-80
USB board assembly removal . .4-80
Connector locations and connections 5-1
Connections .5-1
System board . .5-1
Autoconnect .5-7
Fuser Board .5-7
High-capacity output stacker board .5-8
High voltage power supply . .5-9
Interconnect card .5-9
Low 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
Assembly 7: Paper feed—multipurpose feeder . 7-14
Assembly 8: Paper feed—alignment 7-16
Assembly 9: Integrated 250-sheet paper tray 7-18
Assembly 10: Integrated 500-sheet paper tray . 7-20
Assembly 11: Drives—Main drive and developer drive 7-22
Assembly 12: Hot roll fuser . 7-24
Assembly 13: Transfer/charging 7-26
Assembly 14: Electronics—power supplies 7-28
Assembly 15: Electronics—card assemblies . 7-30
Assembly 16: Electronics—shields . 7-32
Assembly 17: Cabling diagrams 1 7-34
Assembly 18: Cabling diagrams 2 7-35
Assembly 19: Cabling diagrams 3 7-36
Assembly 20: Cabling diagrams 4 7-38
Assembly 21: Cabling diagrams 5 7-40
Assembly 22: Optional 250-sheet paper drawer . 7-42
Assembly 23: Optional 250-sheet paper tray . 7-43
Assembly 24: Optional 500-sheet paper drawer . 7-44
Assembly 25: Optional 500-sheet paper tray . 7-45
Assembly 26: Duplex option . 7-46
Assembly 27: Envelope feeder . 7-47
Assembly 28: Output expander 1 . 7-48
Assembly 29: Output expander 2 . 7-49
Assembly 30: High-capacity output expander 1 . 7-50
Assembly 31: High-capacity output expander 2 . 7-51
Assembly 32: High-capacity output expander 3 . 7-52
Assembly 33: 5-bin mailbox 1 . 7-54
Assembly 34: 5-bin mailbox 2 . 7-56
Assembly 35: High-capacity feeder 1 . 7-58
Assembly 36: High-capacity feeder 2 . 7-60
Assembly 37: High-capacity feeder 3 . 7-62
Assembly 38: High-capacity feeder 4 . 7-63
Assembly 39: Kiosk—vertical and horizontal paper adapters . 7-64
Assembly 40: StapleSmart finisher I 7-65
Assembly 41: StapleSmart finisher 2 7-66
Assembly 42: StapleSmart finisher 3 7-67
Assembly 43: StapleSmart finisher 4 7-68
Assembly 44: Options 7-69
Appendix A—Options and features A-1
Installing input optionsA-1
Order of installation . A-1
Installing a 250-sheet or 500-sheet drawer A-1
Installing a duplex unit A-3
Installing memory or option cards A-4
Accessing the printer system board . A-5
Removing or installing a memory card . A-7
Removal . A-7
Installation A-8
Removing or installing a flash memory or firmware cardA-8
Removal . A-8
Installation A-9
Installing an option cardA-10
Replacing the shield . A-11
Printing and using features . A-11
Canceling a print job . A-11
Printing the menu settings page A-13
Printing a network setup page . A-13
Printing a font sample list . A-14
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












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