Lexmark Color Jetprinter 1020 User manual

4078-00X
Color Jetprinter™ 1020
Lexmark and Lexmark with diamond
design are trademarks of Lexmark
International, Inc., registered in the
United States and/or other countries.
•Index
• Safety and Notices
• Trademarks
• Start Diagnostics
• Table of Contents

iii
4078-00X
Contents
Pre
face ................................................v
SafetyInformation..................................... v
GeneralInformation ....................................1-1
PowerConsumption..................................1-1
Maintenance Approach................................1-1
Abbreviations....................................1-2
UniqueToolsRequiredForService...................1-2
DiagnosticInformation .................................2-1
Start..............................................2-1
ErrorIndicatorTable...............................2-2
Power-On Self Test (POST) Sequence ................2-2
POSTSymptomTable.............................2-3
SymptomTables .................................2-4
ServiceChecks......................................2-6
CarrierTransportServiceCheck.....................2-6
EnvelopeFeedServiceCheck.......................2-7
MaintenanceStationServiceCheck ..................2-8
Paper Feed Service Check .........................2-9
Paper Path Service Check.........................2-11
ParallelPortServiceCheck........................2-12
PowerServiceCheck.............................2-12
PrintQualityServiceCheck........................2-13
PrintQualityNotice...............................2-15
DiagnosticAids .......................................3-1
EOFandHomePositionSensorsTest....................3-2
InitializeErrorLog....................................3-3
ParallelPortTest....................................3-4
PrintNVRAMContents................................3-5
ResetNVRAMtoEMEADefaults........................3-6
ResetNVRAMtoUSADefaults.........................3-7
TestPage..........................................3-8

iv
4078-00X
RepairInformation......................................4-1
Handling ESD-Sensitive Parts .......................... 4-1
Adjustments........................................ 4-2
RemovalProcedures................................. 4-2
ReleasingPlasticLatches.......................... 4-2
AccessCoverRemoval............................ 4-3
BaseAssemblyRemoval........................... 4-3
CarrierBeltRemoval.............................. 4-3
CarrierFrameAssemblyRemoval ................... 4-4
CarrierHomeSensorRemoval...................... 4-4
CarrierTransportMotorRemoval.................... 4-5
DriveTrainAssemblyRemoval...................... 4-5
FrontCoverRemoval ............................. 4-6
GutterPadRemoval.............................. 4-6
LargeFeedRollRemoval.......................... 4-7
Maintenance Station Assembly Removal .............. 4-7
Maintenance Wiper and Cap Removal ................ 4-7
MidFrameAssemblyRemoval...................... 4-8
Paper Feed Motor Removal ........................ 4-8
Power Supply Removal. . .......................... 4-8
Printhead Carrier Assembly Removal ................. 4-9
RearCoverRemoval............................. 4-10
Sheet Feeder Removal . . ......................... 4-11
SmallFeedRollAssemblyRemoval................. 4-11
SmallFeedRollBracketAssemblyRemoval .......... 4-12
SystemBoardRemoval........................... 4-13
ConnectorLocations....................................5-1
SystemBoardConnectors............................. 5-1
PreventiveMaintenance .................................6-1
LubricationSpecifications ............................. 6-1
PartsCatalog ..........................................7-1
HowToUseThisPartsCatalog......................... 7-1
Assembly1:Covers............................... 7-2
Assembly 2: Paper Feed / Carrier Transport / Maintenance 7-4
Assembly3:Electronics ........................... 7-6
Assembly3:Electronics(Continued) ............ 7-8
........... 7-10
........... 7-12
............ X-1

Parts Catalog 7-2
4078-00X
Assembly 1: Covers