Lexmark 4090-001 manual Do not lubricate the carrier guide rod or

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4090-001

	FRU	Action

5	Paper Feed	Ink smudging and smearing can be caused by
		paper problems or problems in the paper feed
		area.
		Check the following:
		• Correct type of paper is being used. Also check
		the paper for curl or wrinkles.
		• Feed rollers for wear, dirt, or looseness.
		• Gears for wear or binds.
		• Paper path for obstructions.

6	Transport	Blurred print and voids can be caused by problems
		in the transport area. Check the following:
		• Transport belt for wear.
		• Carrier guide rod for wear or dirt.
		• Carrier to carrier frame engagement should be
		lubricated with grease P/N 1329301.
		Do not lubricate the carrier guide rod or
		carrier bearing surfaces.
		• Idler pulley parts for wear, damage, or
		looseness.
		• Encoder strip for wear or dirt.

7	Alignment	Uneven vertical lines can be adjusted by
		performing the bidirectional alignment. The user is
		directed, through the Printer Control program, to
		perform the head to head and bidirectional printing
		alignments, when replacing a print cartridge.

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Contents 4090-001 4090-001 Contents Connector Locations Preventive Maintenance Safety Information PrefaceSicherheitshinweise Consignes de SécuritéNorme di sicurezza Pautas de Seguridad SikkerhedsoplysningerInformações de Segurança Chinese Safety Information Korean Safety Information Resolution and Print Speed Power ConsumptionMaintenance Approach General InformationUnique Tools Required For Service AbbreviationsDiagnostic Information StartError Indicator Table Power-On Self Test Post SequencePost Symptom Table Symptom ActionSymptom Tables Carrier Transport Problems4090-001 Paper Feed Problems Service Checks Envelope Feed Service CheckFirst Print Line Service Check Maintenance Station Service Check Paper Feed Service Check Perform the ’Paper Path Service Check’ on Paper Path Service Check Parallel Port Service Check Power Service CheckPrint Quality Service Check Do not lubricate the carrier guide rod or Transport Service Check Perform the ’Encoder Sensor Test’ on page 3-2. IfDiagnostic Aids Encoder Sensor Test Initialize Error Log Paper Sensor Test Parallel Port Test Print Nvram Contents Test Repair Information Handling ESD-Sensitive PartsAdjustments Removal ProceduresReleasing Plastic Latches Base Assembly Removal Carrier Belt RemovalCarrier Frame Assembly Removal Carrier Transport Motor Removal Code Module Removal Edge Guide Asm and Paper Load Shaft RemovalEncoder Card Removal Encoder Strip RemovalFeed Arm Assembly Removal Exit Drive Belt RemovalExit Roller Removal Front Cover Removal Gutter Pad RemovalInside Idler Gears Removal Large Feed Roll Removal Large Outside Gear Removal Left Side Frame Assembly Removal Maintenance Station Assembly Removal Maintenance Wipers and Caps RemovalMid Frame Assembly Removal Manual Insert Tray RemovalPaper Guide and EOF Flag Assembly Removal Paper Feed Motor Removal4090-001 Power Supply Removal Paper Load Door RemovalPick Roll Hub, Shaft and Envelope Bucklers Removal Printhead Cable, Cradle & Paper Deflector Removal 4090-001 Printhead Carrier Assembly Removal Printhead Rubber Backer RemovalRight Side Frame Assembly Removal Rear Cover RemovalSmall Feed Roll Shaft, Rollers & Paper Flap Removal Star Roller RemovalSystem Board Removal Connector Locations System Board Connectors Encoder Card Connector Connector Connector NamesPreventive Maintenance Lubrication SpecificationsParts Catalog How To Use This Parts Catalog Assembly 1 Covers Asm Part Units Description Index Number Assembly 2 Frames 4090-001 Assembly 3 Paper Feed 4090-001 Assembly 4 Electronics 70G2695 System Board, W/O Code Module Assembly 4 Electronics 4090-001 Assembly 5 Carrier 4090-001 Assembly 6 Carrier Transport 4090-001 Assembly 7 Sheet Feeder 4090-001 Assembly 8 Maintenance Station 4090-001 Index Post4090-001