Lexmark 4402-001 manual Paper Feed Service Check, Run the Power-On Self Test Post Sequence

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4402-001

Paper Feed Service Check

If your machine does not have paper jam problems, continue with the service check. If your machine does have a paper jam problem, examine it for the following before you begin the service check:

•Check the entire paper path for obstructions.

•Be sure there is not too much paper in the sheet feeder.

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

•Check for static in the paper.

	FRU	Action

1	System Board	Run the “Power-On Self Test (POST) Sequence”
		on page 2-1. Replace parts as needed. To check
		the paper feed motor, disconnect the paper feed
		connector J3 and check for approximately 5 ohms
		between pins 3 and 4. If the reading is incorrect,
		replace the print engine. Go to the “Print Engine
		Removal” on page 4-11. If the reading is correct,
		replace the system board. Go to the “System
		Board Removal” on page 4-12.

Diagnostic Information 2-11

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Contents 4402-001 4402-001 Table of Contents Assembly 3 Electronics Index Consignes de Sécurité Safety InformationSicherheitshinweise Norme di sicurezzaInformaçõ es de Seguranç a Pautas de SeguridadInformació de Seguretat 4402-001 Preface General Information Power ConsumptionScanner Specifications Operator Panel Press this When you want to ButtonAbbreviations Maintenance ApproachPower-On Self Test Post Sequence Diagnostic InformationStart Post Symptom Table Symptom Tables Go to the Gear Train Assembly Go to the CCD Module AssemblySystem Board Removal on Go to the Scan/Copy QualityGo to the Paper Path Service Go to the Paper Feed ServiceGo to the Power Service Check Go to the Print Quality ServiceCarrier Transport Service Check Service ChecksEngine. Go to the Print Engine Removal on To the Maintenance Station Removal on Assembly Print Engine Removal onRemoval on Cover Sensor Removal on page 4-6. If Gear Train Assembly Service CCD Module Assembly Service Check Removal on page 4-12 for more Assembly Removal on Gear Train Assembly Service CheckBelt/Idler Pulley Assembly Print Engine Removal onStation Removal on Maintenance Station Service CheckRun the Power-On Self Test Post Sequence Paper Feed Service CheckEngine Removal on page 4-11 and replace Paper Path Service Check Power Service Check Maintenance Station Removal on Print Quality Service CheckGo to the System Board Removal on Carrier transport area. Check the following Scan/Copy Quality Service Check 4402-001 Test Diagnostic Aids4402-001 Handling ESD-Sensitive Parts Repair InformationRemoval Procedures AdjustmentsReleasing Plastic Latches Rear Cover Removal Scanner Lid Assembly RemovalOperator Panel Removal Top Housing Assembly RemovalPaper Support Removal CCD Module Assembly Removal Access Cover Sensor Removal Gear Train Assembly RemovalRight Cover Removal Access Cover RemovalLeft Cover Removal Middle Frame Removal 4402-001 Print Engine Removal System Board Removal ASF Module RemovalEncoder Strip Removal Carrier RemovalBelt/Idler Pulley Assembly Print Engine Removal Maintenance Station RemovalUnits Description Connector Locations4402-001 Lubrication Specifications Preventive Maintenance4402-001 Parts Catalog How to Use This Parts CatalogAssembly 1 Covers Asm Part Units Description Index Number Assembly 1 CoversAssembly 1 cont. Covers Assembly 1 cont. Covers Assembly 2 Paper Feed, Frame and Carrier Transport Assembly 2 Paper Feed, Frame and Carrier Transport Assembly 3 Electronics Assembly 3 Electronics 4402-001 Index Part Numbers