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LEXMARK C920, Service Manual & Parts List

Service Manual & Parts List LEXMARK C920;
This service manual, is the full LEXMARK C920 Service Repair Manual.
This manual, LEXMARK C920, is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your LEXMARK C920 copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of LEXMARK C920 photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:

Notices and safety information
Laser notice
Safety information

Preface
Definitions

GENERAL INFORMATION
Overview
Resolution
Model differences
Options and features
Compatibility
Technical specifications
Toner darkness
Color correction settings
Physical specifications and weight
Print speed and performance
Performance
Time to first print
Processor
Duty cycle
Printer memory
Memory configuration
Available memory options
Memory and expansion slots
Resident fonts
Paper and media specifications
Media size supported
Input
Output
Input media types and weights
Input capacity by media and source
Output capacity by media and source
Media guidelines
Paper
Envelopes
Transparencies
Labels
Lexmark glossy paper
Print area
Connectivity
Standard
Network connections
Internal network connections
Data streams
Operating systems
Power and electrical specifications
Power requirements
Electrical specifications
Low voltage models
High voltage models
Operating clearances
Environment
Printer temperature and humidity
Maintenance approach
Standard inspection and cleaning procedure
Return parts
Service recommendations
Tools
Serial number, configuration ID, and part number
Acronyms

DIAGNOSTIC INFORMATION
Start
Initial check
Symptom table
Printer messages
Service error message tables
900 - RIP software error
910 - Drive Motor Error
911 - Paper Exit Motor Error
912 - High-Capacity Feed Motor Error
917 - RIP Fan Error
918 - Main Unit Fan Error
919 - Power Supply Fan Error
920 - Fuser Error - Fuser Heater Trouble
923 - Upper Fuser Thermistor Open Error
924 - Lower Fuser Thermistor Open Error
925 - HVU Error
926(K), 927(C), 928(Y), 929(M) - Toner Sensor Error
930 - Yellow Printhead Error
931 - Magenta Printhead Error
932 - Cyan Printhead Error
933 - Black Printhead Error
934 - Color Drum Sensor Error
935 - Black Drum Sensor Error
936 - 939 Cassette Error
940 - High-Capacity Feed Sensor Error
941 - High-Capacity Feed Tray Error
942 - Duplex Error
945 - Engine Flash Error
946 - Printer/Printhead Controller Board Communication Error
947 - Finisher Communication Error
948 - Machine ID Error
949 - Tray (x) Comm
950 - Mirror Mismatch
952 - NVRAM Chip Failure
954 - NVRAM CRC Failure
955 - Code CRC
956 - Processor Failure
957 - ASIC Failure
958 - NAND Failure
960 - RAM Slot 1 Bad
961 - RAM Slot 2 Bad
964 - Emulation Error
970 - Standard Network Error
975 - Unrecognizable Network Port
976 - Unrecoverable Software Error in Network Port
978 - Bad Checksum While Programming Network Card
979 - Flash Parts Failed While Programming Network Port
980 Face Up/Down Switching Error
981 - Belt Up/Down Sensor Error
982 - Sensor Controller Error
983 - Black Gear Sensor Error
984 - Yellow Gear Sensor Error
985 - Transfer Belt Thermistor Error
986 - Transparency (OHP) Sensor Error
987 - Service Toner Cartridge
991 - Service Paper Option
992 - Temperature/Humidity Sensor Error
993 - CPU Error
994 - Density Sensor Error
995 - Finisher Main Feed Motor abnormal
996 - Finisher Jogging Motor Error
997 - Finisher Tractor Motor Error
998 - Tray Elevator Motor Error
999 - Stapler Motor Error
Attendance messages
Clearing finisher messages
Maintenance analysis procedures (MAPS)
Map 1 - False Side Door Open message
Map 2 - False Close Front Door message
Map 3 - False Close Tray (x) Top Cover message
Map 4 - False Tray (x) Low/Empty message
Map 5 - False 30 Oil Coating Roll Missing message
Map 6 - False Print Unit Missing message
Map 7 - False 88 Toner Low/Toner Empty message
Map 8 - False 40 Tray (x) Size Sensor Error message
Map 9 - False 41 Open Bin 1 Exit Tray message
Map 10 - Unrecoverable Check Tray (x) or Duplex Connection message
Map 11 - Paper size map
Map 12 - Unable to print from USB drive service check
Map 13 - False tray (x) too full
Map 14 - False 32 - replace unsupported cartridge
Service checks
Drive 1 DC motor service check
Paper exit motor service check
Duplex unit service check
Paper feed unit service check
Expansion paper feed service check
Face down stacker full service check
High-capacity feeder (HCF) service check
Finisher service check
Marks on paper service check
Operator panel service check
Paper carrying service check
Paper exit, face up service check
Paper skew service check
Paper tray missing service check
Photodeveloper missing service check
Power supply service check
210 Staple jam service check
Transfer belt up/down service check
Image quality troubleshooting
Print quality problems
No image
Black line
Black print
Missing colors
Uneven printing
Periodic dirt
White spots
983 - Black Gear Sensor Error
984 - Yellow Gear Sensor Error
985 - Transfer Belt Thermistor Error
986 - Transparency (OHP) Sensor Error
987 - Service Toner Cartridge
991 - Service Paper Option
992 - Temperature/Humidity Sensor Error
993 - CPU Error
994 - Density Sensor Error
995 - Finisher Main Feed Motor abnormal
996 - Finisher Jogging Motor Error
997 - Finisher Tractor Motor Error
998 - Tray Elevator Motor Error
999 - Stapler Motor Error
Attendance messages
Clearing finisher messages
Maintenance analysis procedures (MAPS)
Map 1 - False Side Door Open message
Map 2 - False Close Front Door message
Map 3 - False Close Tray (x) Top Cover message
Map 4 - False Tray (x) Low/Empty message
Map 5 - False 30 Oil Coating Roll Missing message
Map 6 - False Print Unit Missing message
Map 7 - False 88 Toner Low/Toner Empty message
Map 8 - False 40 Tray (x) Size Sensor Error message
Map 9 - False 41 Open Bin 1 Exit Tray message
Map 10 - Unrecoverable Check Tray (x) or Duplex Connection message
Map 11 - Paper size map
Map 12 - Unable to print from USB drive service check
Map 13 - False tray (x) too full
Map 14 - False 32 - replace unsupported cartridge
Service checks
Drive 1 DC motor service check
Paper exit motor service check
Duplex unit service check
Paper feed unit service check
Expansion paper feed service check
Face down stacker full service check
High-capacity feeder (HCF) service check
Finisher service check
Marks on paper service check
Operator panel service check
Paper carrying service check
Paper exit, face up service check
Paper skew service check
Paper tray missing service check
Photodeveloper missing service check
Power supply service check
210 Staple jam service check
Transfer belt up/down service check
Image quality troubleshooting
Print quality problems
No image
Black line
Black print
Missing colors
Uneven printing
Periodic dirt
White spots
Options service check
Serial port
Flash Memory Option(s)
DRAM Memory Option(s)
Hard Disk Option
Network Card Option
Error Code 976 - Network Card x
54 Network Software Error

DIAGNOSTIC AIDS
Power-On Self Test sequence
Understanding the printer operator panel
Printing the menu settings
Operator menu disabled
Menu overview
Diagnostics
Navigating the Diagnostics Menu
Diagnostics Menu Overview
Alignment
Auto Alignment
Cyan, Yellow, Magenta
Print Tests
"[Input Source]" Print Test
Output Bin 1 (Print Tests)
Print Quality Pages
Hardware Tests
Panel Test
Button Test
Cache Test
DRAM Test
Parallel Wrap Test
Serial Wrap Test
Output Bin Tests
Feed Tests (Output Bin)
Feed To All Bins
Sensor Test (Output Bin)
Finisher Tests
Feed Test
Hole Punch Test
Sensor/Sw Test
Staple Test
Device Tests
Quick Disk Test
Disk Test/Clean
Flash Test
Printer Setup
Defaults
Light Quantity
Page Counts
Serial Number
Model Name
Configuration ID
Reset Color Calibration
Par [x] Strobe Adj
Par S Strobe Adj
Par 1 Strobe Adj
Par 2 Strobe Adj
Par 3 Strobe Adj
Event Log
Display
Print
Clear
Exit Diagnostics
Configuration menu
Black only mode
Print quality pages
Color trapping
Panel menus
PPDS emulation
Demo mode
Factory defaults
Energy conserve
Event log
Auto align adjust
Auto color adjust
Paper prompts
Envelope prompts
Jobs on disk
Disk encryption
Font sharpening
Standby disabled
Exit config menu
Theory of operation
Processes and configuration
Electrophotography process
Development unit
Transfer unit
Cleaning unit
Fusing
Drive system
Paper feeding
Cassette paper feeder
Multipurpose feeding
Registration unit
Belt unit
Belt up/down
Delivery
Expansion paper feeder
Duplex unit
Paper weight
Purpose:
Values:
Clearing paper jams
200 Paper Jam
250 Paper Jam
241-244 Paper Jam
249 Paper Jam
High-capacity feeder (HCF)
Paper feed and separation mechanism
Registration operation
Tray up/down mechanism
Tray up condition
Tray down condition
Size detection mechanism
Residual paper detection mechanism
Paper end detection
Maintenance Mode
DIP switch specifications
Finisher
Finisher cross section
Electrical parts function
Paper feed mechanism
Straight paper path (exit paper to upper tray)
Path select gate
Inverting paper path (exit paper to lower tray through accumulator)
Accumulator
Paper registration sequence
Punch unit driving sequence
Jogging / offset mechanism
Jogging sequence
Offsetting sequence
Detection of fixed position
Stapling mechanism
Elevator sequence
Finisher installation
Attaching the docking plate and guide rail
Combining the finisher and stand
Attaching the bins
Aligning the finisher and printer
Lowering or raising the finisher
Aligning the sides of the finisher
Aligning the top of the finisher
Adjusting the wheels
Attaching the cables
Interface cable
Power cable
Hole punch adjustment

REPAIR INFORMATION
Handling ESD-sensitive parts
Service precautions
RIP board/operator panel replacement
Handling printed circuit boards
Transportation/storage
Replacement:
Inspection:
Check finisher alignment when moving or servicing the finisher
Adjustments
High-capacity paper feed timing belt adjustment
Adjustments and procedures following parts replacement
Removals
Cover, top removal
Front door / operator panel removal
Cover, front left removal
Cover, rear removal
Cover, solenoid removal
Cover, left side removal
Cover, right side removal
Cover, RIP board removal
Tray, paper exit removal
Belt up/down clutch removal
Cassette guide removal
CK1 daughter board removal
CK2 daughter board removal
Connector, duplex unit removal
Paper tray lift motor removal
Density sensor removal/Separation fingers removal/Sensor cleaner removal
Drive gear unit sensor assembly removal
Electronic box removal
Face up paper exit assembly removal
Front cover open switch actuator removal
Fuser removal
Gear cover removal/Multipurpose feeder frame assembly
High voltage power supply board (HVPS) removal
LED printhead removal
Eraser removal
Lock handle assembly removal
Main drive unit removal
Main unit fan removal
Motor drive board removal
Multipurpose feeder paper present sensor removal
Multipurpose feeder tray removal
Paper feed unit removal
Paper-feed rollers removal
Paperpath maintenance
Paper carrying frame removal / roll removal
Registration frame
Registration clutch removal
Registration sensor removal
Relay roller removal
Face down guide assembly removal
Face down exit roll removal
Power supply 1 removal
Power supply 2 removal
Power switch removal
Printer controller removal
Printhead controller board removal
Left slide rail removal
RIP box removal
Sensor board removal
Stay arm removal
Sub-frame removal
Sub frame F1, sub frame F2 removal
Temperature/humidity sensor removal
Top unit removal
Transfer belt removal
Turn guide cover sensor removal
Upper fan removal
Expansion feeder removals
Turn guide door removal
Expansion feeder controller board removal
Size sensor board removal
Stepper motor removal
Paper feed assembly removal
Paper tray lift motor removal
Expansion feeder turn guide door sensor assembly removal
Duplex removals
Duplex unit separation removal
Duplex unit removal
Duplex timing belt removal
Duplex pressure roller and solenoid removal
Duplex feed roller and solenoid removal
Duplex side fence motor assembly/side fence removal
Duplex paper carrying motor removal
High-capacity feeder (HCF) removals
HCF covers removal
HCF call roller, paper feed roller, reverse roller removal
HCF pickup solenoid removal
HCF paper end sensor removal
HCF paper size sensors (1, 2) removal
HCF tray motor removal
HCF paper level sensor removal
HCF power supply removal
Finisher removals
External covers removals
Finisher control board removal
Elevator motor removal
Feed motor assembly removal
Hole punch removal
Inverter paper exit discharge brush removal
Inverter paper exit roller removal
Jogging unit removal
Path select gate removal
Patting roller removal
Power supply removal
Registration roller removal
Registration roller clutch removal
Stack area discharge brush removal
Staple unit removal
Straight paper exit discharge brush removal
Straight paper exit roller removal
Timing belts 1 and 2 removal
Tractor belt removal
Tractor drive motor assembly removal

LOCATIONS
Covers diagram
Major parts diagram
Sensor and switch locations
Component locations
Printer controller board
Printer controller board connectors
Printhead controller board
Printhead controller board connectors
CK1 board connectors
CK2 board connectors
RIP board
RIP board connectors
LVPS 1 board connectors
LVPS 2 board connectors
High voltage power supply board
Sensor board connectors
Expansion paper feeder controller board
Duplex unit controller board
Motor drive board connectors
Size sensor board
Paper feed actuators
Paper feed roller clutch
High-capacity feeder (HCF)
High-capacity paper feed configuration
Electrical parts layout
Driving parts layout
Finisher locations

PREVENTIVE MAINTENANCE
Maintenance kit
Paper path maintenance
Periodic maintenance
Lubricants and cleaners

PARTS CATALOG
How to use this parts catalog
Assembly 1: Covers 1
Assembly 2: Covers 2
Assembly 3: Covers 3
Assembly 4: Covers 4
Assembly 5: Covers 5
Assembly 6: Upper unit
Assembly 7: Paper feed
Assembly 8: Base 2
Assembly 9: Base 3
Assembly 10: Electrical A
Assembly 11: Electrical B
Assembly 12: RIP board
Assembly 13: Fuser unit
Assembly 14: Cassette
Assembly 15: Expansion feeder 1
Assembly 16: Expansion feeder 2
Assembly 17: Duplex unit 1
Assembly 18: Duplex Unit 1
Assembly 19: Duplex unit 2
Assembly 20: High-capacity feeder 1
Assembly 21: High-capacity feeder 2
Assembly 22: High-capacity feeder 3
Assembly 23: High-capacity feeder 4
Assembly 24: High-capacity feeder 5
Assembly 25: High-capacity feeder 6
Assembly 26: Finisher covers
Assembly 27: Finisher frame
Assembly 28: Finisher feed 1
Assembly 29: Finisher feed 2
Assembly 30: Finisher elevator
Assembly 31: Finisher electronics
Assembly 32: Finisher docking 1
Assembly 33: Finisher docking 2
Assembly 34: Miscellaneous/options
Assembly 35: Parts packets
Assembly 36: Finisher parts packet P/N 56P9480

Index
Part number index

Numbers of pages: 370.
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