Lexmark 4200 Series manual Engine. Go to the Print engine removal on

Page 23

4413-XXX

 

FRU

Action

 

 

 

2

Carrier Transport

Check the motor for binds, or loose motor pulley.

 

Motor

A noisy or chattering motor, or a motor that fails to

 

 

 

 

turn, can be caused by:

 

 

An open or short in the motor

 

 

An open or short in the motor driver

 

 

on the system board

 

 

A bind in the carrier transport

 

 

mechanism

 

 

With the carrier transport motor cable (CN3)

 

 

disconnected from the system board, check for 0

 

 

to 16 ohms between the following pins on the

 

 

motor:

 

 

CN3-2 and CN3-3

 

 

If the readings are incorrect, replace the print

 

 

engine. Go to the “Print engine removal” on

 

 

page 4-16.

 

 

 

3

Carrier Guide Rod

Clean the carrier rod.

 

 

Note: Lubricate the rod and the carrier rod bearing

 

 

surfaces with grease P/N 99A0394.

 

 

 

4

Encoder Strip

Check the encoder strip for proper installation.

 

Carrier Assembly

Also, check it for wear, dirt, and grease. Replace if

 

needed.

 

with Belt

Be sure all printhead connectors are fully seated.

 

 

 

 

Check the cables for damage.

 

 

If the encoder strip and all connections are okay,

 

 

but the carrier still slams the side frame, replace

 

 

the carrier assembly with belt. Go to the “Carrier

 

 

assembly with belt removal” on page 4-18. If

 

 

problem remains, replace the system board. Go to

 

 

the “System board removal” on page 4-19.

 

 

 

5

Carrier Transport

Check for worn, loose or broken parts. Check for

 

Belt

obstructions blocking carrier movement. If pulley

 

Idler Pulley

assembly is damaged, replace.

 

Assembly

Lubricate carrier to carrier frame engagement with

 

 

 

 

grease P/N 99A0394.

 

 

 

Diagnostic information 2-7

Image 23
Contents Lexmark 4200 Series Japanese P/N 12G9335 Table of Contents Repair information Consignes de sécurité Safety informationSicherheitshinweise Norme di sicurezzaInformaçõ es de Seguranç a Pautas de SeguridadInformació de Seguretat 4413-XXX Definitions PrefaceGeneral information Printhead SpecificationsPrint engine ADF FacsimileScanner Power and sizeAbbreviations 4413-XXX Start Diagnostic informationPower-On Self Test Post sequence Post symptom table Symptom tables Go to the System board removal Assembly service check onTo the Scanner motor with gear System board removal onGo to the Paper path service Go to the CIS assembly serviceGear assembly service check on Problems onGo to the Print quality service Service checksCarrier transport service check Go to the Power service checkEngine. Go to the Print engine removal on Assembly with belt removal on page 4-18. IfImage Sensor removal on CIS assembly service checkTo the Maintenance station removal on Control panel problems on Scanner motor with gear assembly service checkGear assembly removal on Station removal on Maintenance station service checkBoard Go to the System board removal on Paper feed service checkRun the Power-On Self Test Post sequence Feed motor assembly with gears removal on CIS white roller assembly removal on Paper path service checkRemoval on Power service checkGo to the System board removal on Print quality service checkMaintenance station removal on With belt removal onCarrier transport area. Check the following To the System board removal on Scan/copy quality service checkFax/telephone communication service check Scanner mechanism Diagnostic aidsDrive feed roller assembly Theory of mechanismDocument sensors Contact Image Sensor CIS4413-XXX Set up options 4413-XXX Handling ESD-sensitive parts Repair informationReleasing plastic latches AdjustmentsRemoval procedures Removals General precautions on removalsCIS white roller assembly removal Top cover assembly removal Rollers drive feed roller assembly, exit shaft removal 4413-XXX 4413-XXX 4413-XXX CIS Contact Image Sensor removal Scanner motor with gear assembly removal 4413-XXX Control panel assembly removal 4413-XXX 4413-XXX Print engine removal Maintenance station removal Remove print engine. See Print engine removal on Carrier assembly with belt removalSystem board removal Exit rollers removal Remove system board. See System board removal on Large feed roller assembly with gear removal4413-XXX Paper feed motor assembly with gears removal Handset and cradle removal Carrier transport motor removalSystem board Connector locations4413-XXX Lubrication specifications Preventive maintenance4413-XXX Parts catalog How to use this parts catalogAssembly 1 Main assembly Asm Part Units Description Index Number Assembly 1 Main assemblyAssembly 2 Base unit Assembly 2 Base unit Assembly 3 Engine Assembly 3 Engine 4413-XXX Repair information IndexPost Part Numbers