Dell 1600n - Multifunction Laser Printer B/W Service Manual

Also see for 1600n - Multifunction Laser Printer B/W: Owner's manual Specifications Specifications User guide User guide

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Dell 1600n - Multifunction Laser Printer B/W Service Manual Manual pdf 101 page image

TroubleshootingService Manual 7-117.3.3 Horizontal Black Band• Description 1. Dark or blurry horizontal stripes occur in the printing periodically.(They may not occur periodically.)Digital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterCheck and Cause Solution1. Bad contacts of the voltage terminals todeveloper.2. The rollers of developer may be stained.Charge roller = 37.7 mmSupply roller = 37 mmDevelop roller = 35.3 mmTransfer roller = 45.3 mm1. Clean each voltage terminal of the Charge,Supply, Develop and Transfer roller.(remove the toner particles and paper par-ticles)2. Clean the right Gear that has a relativelysmall gap of the teeth in the OPC.3. If the malfunction persists, replace thedeveloper.7.3.4 Black/White Spot• Description 1. Dark or blurry black spots occur periodically in the printing.2. White spots occur periodically in the printing.Digital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterCheck and Cause Solution1. If dark or blurry black spots occurperiodically, the rollers in the Developermay be contaminated with foreign matteror paper particles.( Charge roller : 37.7 mm intervalOPC drum : 75.5 mm interval)2. If faded areas or voids occur in a blackimage at intervals of 75.5 mm, or blackspots occur elsewhere, the OPC drumsurface is damaged.3. If a black image is partially broken, thetransfer voltage is abnormal or the trans-fer roller's life has expired.1. Run OPC cleaning Mode Print and run theSelf-test 2 or 3 times.2. In case of 75.5 mm interval unremovable in1, cleanly remove foreign substances stuckon the OPC location equivalent to blackspots and white spots with a dry duster.3. The transfer roller guarantees 60,000sheets printing. If the roller's life is expired,replace it.4. In case of 37.7 mm interval unremovable in1, take measures as to replace the develop-er cartridge and try to print out.5. Clean the inside of the set against the paperparticles and foreign matter in order not tocause the trouble.