Lexmark 4402-001 Gear Train Assembly Service Check, Assembly Removal on, Print Engine Removal on

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4402-001

Gear Train Assembly Service Check

CCD will not move or scan.

	FRU	Action

1	Gear Train Assembly	Disconnect J5 and check the reading
		at pin 1 and 3 for approximately
		225.5 ohms. If the reading is
		incorrect, replace the gear train
		assembly. Go to the “Gear Train
		Assembly Removal” on page 4-6.
		If the reading is correct, check at
		pins 1 through 6 for approximately
		28 volts, with the machine turned on.
		If the voltage is incorrect, replace the
		system board. Go to the “System
		Board Removal” on page 4-12.
		Note: Ensure scanner is unlocked.

2	Scanner Belt	Check the belt for proper installation.
		If the belt is damaged, replace. Go to
		the “Belt/Idler Pulley Assembly
		(Print Engine) Removal” on
		page 4-14.
		Note: If not properly installed, the
		belt will slip.

Diagnostic Information 2-9

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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 ApproachStart Diagnostic InformationPower-On Self Test Post Sequence Post Symptom Table Symptom Tables Go to the Scan/Copy Quality Go to the CCD Module AssemblyGo to the Gear Train Assembly System Board Removal onGo to the Print Quality Service Go to the Paper Feed ServiceGo to the Paper Path Service Go to the Power Service Check Engine. Go to the Print Engine Removal on Service Checks Carrier Transport Service Check Cover Sensor Removal on page 4-6. If Assembly Print Engine Removal onTo the Maintenance Station Removal on Removal onRemoval on page 4-12 for more CCD Module Assembly Service CheckGear Train Assembly Service Print Engine Removal on Gear Train Assembly Service CheckAssembly Removal on Belt/Idler Pulley AssemblyStation 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 Go to the System Board Removal on Print Quality Service CheckMaintenance Station Removal on Carrier transport area. Check the following Scan/Copy Quality Service Check 4402-001 Test Diagnostic Aids4402-001 Handling ESD-Sensitive Parts Repair InformationReleasing Plastic Latches AdjustmentsRemoval Procedures Rear Cover Removal Scanner Lid Assembly RemovalPaper Support Removal Top Housing Assembly RemovalOperator Panel 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