Lexmark C734 C736 Service Manual and Parts List Manual

This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Lexmark C734 C736 copier.
You can print, zoom or read any diagram, picture or page from this Service Manual and Parts List 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 C734 C736 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
Lithium warning
Safety information

Media options
Memory options
Printer specifications
Expansion opportunities
Data streams
Environment specifications
Electrical and power specifications
Acoustic specifications
Media specifications
Input and output capacities
Input and output sizes and types
Paper guidelines
Tools required for service

Operator panel and menus
Operator panel
Buttons and light description
Administrative menus
Power-on self test (POST) sequence
Symptom tables
Printer symptom table
Print quality symptom table
User status and attendance messages
Error codes and messages
Service checks
110.xx-Mirror motor service check
111.xx, 112.xx, 113.xx, and 114.xx-Printhead error service check
120.xx-Fuser error service check
140.xx, 920.02-Autocomp (tray 1) motor error service check
142.xx, 906.01-906.04-Motor (fuser) error service check
143.xx-Motor (EP drive assembly top cartridge 1 motor) error service check
144.xx-Motor (EP drive assembly middle cartridge) error service check
145.xx-Motor (EP drive assembly bottom cartridge) error service check
146.xx, 148.xx-Motor (MPF/duplex) error service check
147.xx, 920.01-Aligner motor error service check
155.xx-Cam motor error service check
156.xx-COD (Color On Demand) motor service check
160.xx, 161.xx-Motor Error (option tray 2) service check
162.xx, 163.xx-Motor Error (option tray 3) service check
164.xx, 165.xx-Motor Error (option tray 4) service check
166.xx, 167.xx-Motor Error (option tray 5) service check
168.xx-Motor (HCIT elevator) error service check
200.11, 250.03-Paper Jam error service check
201.06, 201.31-Paper Jam error service check
203.09-Paper Jam error service check
230.03, 230.05-Paper Jam error service check
242.02-Paper Jam service check
242.03, 242.11-Paper Jam service check
242.05-Paper Jam service check
242.10-Paper Jam service check
242.17-Paper Jam service check
242.26-Paper Jam service check
242.27-Paper Jam service check
242.29-Paper Jam service check
243.02-Paper Jam service check
243.03, 243.11-Paper Jam service check
243.05-Paper Jam service check
243.10-Paper Jam service check
243.17-Paper Jam service check
243.26-Paper Jam service check
243.27-Paper Jam service check
243.29-Paper Jam service check
244.02-Paper Jam service check
244.03, 244.11-Paper Jam service check
244.05-Paper Jam service check
244.10-Paper Jam service check
244.17-Paper Jam service check
244.26-Paper Jam service check
244.27-Paper Jam service check
244.29-Paper Jam service check
245.02-Paper Jam service check
245.03, 245.11-Paper Jam service check
245.05-Paper Jam service check
245.10-Paper Jam service check
245.17-Paper Jam service check
245.29-Paper Jam service check
900.05-Transfer module error service check
902.59-Engine software error, NVRAM MGR problem service check
920.03, 920.25-Transfer Module Missing error service check
920.04-POST (power-on self test) error service check
920.05-POST (power-on self test) printhead motor not connected error service check
920.07-POST (power-on self test) error service check
920.09-POST (power-on self test)-Four toner sensors not connected error service check
920.10-POST (power-on self test)-Three toner sensors not connected error service check
920.11-POST (power-on self test)-Two toner sensors not connected error service check
920.12-POST (power-on self test)-One sensor not connected error service check
920.13-POST (power-on self test) cartridge motor 1 not connected error service check
920.14-POST (power-on self test)-Cartridge motor 2 not connected error service check
920.15, 920.20-POST (power-on self test)-Bad transfer module NVRAM data error service check
920.16-POST (power-on self test)-Bad printhead NVRAM data error service check
920.17-POST (power-on self test)-Output bin cable not connected error service check
920.18-POST (power-on self test)-Cartridge motor 3 not connected error service check
920.19-POST (power-on self test)-Transfer module stepper motor not connected error service check
920.21-POST (power-on self test)-24 V power supply failure error service check
920.23-POST (power-on self test)-Duplex motor not connected error service check
920.27, 920.28, 920.29-POST (power on self test) service check
925.01, 925.03, 925.05-Fan error service check
925.02, 925.04, 925.06-Cartridge cooling fan error service check
945.xx, 947.xx-Transfer roll error service check
950.00-950.29-EPROM mismatch failure
956.xx-System board failure service check
5 V interlock switch service check
24 V interlock switch service check
Bubble sensor service check
Dead printer service check
Exit sensor service check
Input sensor service check
Networking service check
Operator panel service check
Print quality service check
Tray linking service check

Diagnostics menu
Diagnostics menu structure
Available tests
Motor tests
Print Tests
Hardware Tests
Duplex Tests
Sensor Test
Printhead Tests
Device Tests
Printer Setup
EP Setup
Event Log
Configuration menu (CONFIG MENU)
Available tests
Reset Fuser Cnt
Color Lock Out
Prt Quality Pgs
Color Trapping
Size Sensing
Panel Menus
PPDS Emulation
Download Emuls
Demo Mode
Factory Defaults
Energy Conserve
Auto Align Adj
Auto Color Adj
Color Adj State
Enforce Color Order
Color Alignment
Motor Calibration
Paper Prompts
Env Prompts
Action for Prompts
Jobs on Disk
Disk Encryption
Wipe Disk
Duplex Gloss
Font Sharpening
Clear Custom Status
USB Speed
Exit Config Menu
Front cover locked in place
Printhead verification
Paper Jams
Error jam locations
Clearing jams

Safety information
Removal and cleaning precautions
Handling ESD-sensitive parts
Handing the photoconductor unit
Parts not to be touched
Screw and retainer identification table
Printhead alignment
Printer removal procedures
Precautions to take before maintenance work
Cover removals
Front access cover assembly removal
Left cover removal
Operator panel assembly removal
Operator panel bezel removal
Operator panel buttons removal
Output bin extension cover removal
Paper tray dust cover removal
Rear frame cover removal
Rear left cover removal
Rear right cover removal
Rear upper cover removal
Right cover removal
Top access cover assembly removal
Top cover assembly removal
Printer removals
5 V interlock switch cable removal
24 V interlock switch removal
Bin full sensor flag removal
Bin full sensor removal
Cartridge cooling fan removal
Cartridge motor 1/fuser cable removal
Cartridge motor 2/3 cable removal
Color on demand assembly removal
Contact springs removal
Cooling fan removal
Cooling fan filter removal
Display detent spring
Duplex reference edge guide assembly removal
Electrophotographic (EP) drive assembly removal
Front door assembly removal
Front door assembly front cable (left) removal
Front door assembly front cable (right) removal
Fuser removal
Fuser AC cable removal
Fuser DC cable removal
Hard drive assembly removal
High-voltage power supply (HVPS) removal
High-voltage power supply (HVPS) cable removal
Left bellcrank assembly removal
Low-voltage power supply (LVPS) removal
Motor driver card removal
Motor driver cable removal
Multipurpose feeder (MPF)/duplex gear and housing removal
Multipurpose feeder (MPF)/duplex motor assembly removal
Multipurpose feeder (MPF)/duplex motor cable removal
Operator panel cable removal
Operator panel ground cable assembly removal
Option cable removal
Paper pick mechanism assembly removal
Photoconductor unit removal
Pick arm roll removal and replacement
Printer pad removal
Printhead removal, installation, and adjustment
Right bellcrank assembly removal
System board removal
System board support shield removal
Toner level sensor removal
Top cover camshaft assembly removal
Transfer module removal
Transport cable removal
Transport motor cable removal
USB connector cable removal (front panel)
Waste toner assembly removal
Wireless network antenna removal
Wireless network card removal
Option removals
HCIT media tray assembly removal
HCIT front tray cover removal
HCIT rear cover removal
HCIT right cover removal
HCIT left cover removal
Feed with bushing roller removal
HCIT controller board assembly removal
HCIT drawer slide assembly removal
HCIT elevator motor with sensor removal
HCIT pick arm roll removal
HCIT slide assembly with spring removal
Photointerrupter sensor with cable assembly removal
Top plate assembly removal

System board diagram

Safety inspection guide
Lubrication specifications
Maintaining the printer
Cleaning the exterior of the printer
Cleaning the printhead lenses
Moving the printer

How to use this parts catalog
Assembly 1: Covers
Assembly 2: Front
Assembly 3: Right
Assembly 4: Rear
Assembly 5: Left
Assembly 6: Top
Assembly 7: Cable parts packet
Assembly 8: Optional 550-sheet media drawer and tray
Assembly 9: Optional special media tray assembly
Assembly 10: Optional high-capacity input option (HCIT)
Assembly 11: Options and features

Part number index

Number of pages: 436.