Paper path service check | Lexmark 4200 Series guide

4413-XXX

Paper path service check

Examine the machine for the following before you begin this service check:

•Check the entire paper path for obstructions.

•Be sure the correct type of paper is being used.

•Be sure the printer is installed on a flat surface.

	FRU	Action

1	Large and Small	Check for wear and binds.
	Feed Rollers

2	Small Feed Roller	Check for damage or disconnected springs.
	Springs

3	Auto Sheet	Check the pick roller for wear.
	Feeder Assembly

4	Mid Frame Asm	Check the following for wear:
		•	Exit roller
		•	Star rollers

5	End-of-Forms	Check for binds or damage.
	Flag

6	White Roller	Check for correct installation. Check gear and
	Assembly	bushings for damage. If damaged, replace. Go to
		the “CIS white roller assembly removal” on
		page 4-4.

Diagnostic information 2-13

Image 29

Lexmark 4200 Series manual Paper path service check, CIS white roller assembly removal on

Contents

Lexmark 4200 Series Japanese P/N 12G9335 Table of Contents Repair information Consignes de sécurité Safety information Sicherheitshinweise Norme di sicurezza Informaçõ es de Seguranç a Pautas de Seguridad Informació de Seguretat 4413-XXX Definitions Preface General information Printhead SpecificationsPrint engine ADF Facsimile Scanner Power and size Abbreviations 4413-XXX Start Diagnostic informationPower-On Self Test Post sequence Post symptom table Symptom tables To the Scanner motor with gear Assembly service check onSystem board removal on Go to the System board removal Gear assembly service check on Go to the CIS assembly serviceProblems on Go to the Paper path service Carrier transport service check Service checksGo to the Power service check Go to the Print quality service Engine. Go to the Print engine removal on Assembly with belt removal on page 4-18. If Image 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 check Board 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 check Removal on Power service check Maintenance station removal on Print quality service checkWith belt removal on Go to the System board removal on Carrier transport area. Check the following To the System board removal on Scan/copy quality service check Fax/telephone communication service check Drive feed roller assembly Diagnostic aidsTheory of mechanism Scanner mechanism Document sensors Contact Image Sensor CIS 4413-XXX Set up options 4413-XXX Handling ESD-sensitive parts Repair information Releasing plastic latches AdjustmentsRemoval procedures Removals General precautions on removals CIS 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 removal System board removal Exit rollers removal Remove system board. See System board removal on Large feed roller assembly with gear removal 4413-XXX Paper feed motor assembly with gears removal Handset and cradle removal Carrier transport motor removal System board Connector locations 4413-XXX Lubrication specifications Preventive maintenance 4413-XXX Parts catalog How to use this parts catalog Assembly 1 Main assembly Asm Part Units Description Index Number Assembly 1 Main assembly Assembly 2 Base unit Assembly 2 Base unit Assembly 3 Engine Assembly 3 Engine 4413-XXX Repair information Index Post Part Numbers