Xerox DOCUPRINT N17 Service Manual

Also see for DocuPrint N17: Options guide User guide Supplementary guide Function guide

Contents

Xerox DOCUPRINT N17 Service Manual Manual pdf 347 page image

6/98Xerox DocuPrint N17 Service Manual 7-97 Repair Analysis Procedures (RAPs)7.5.11 Extraneous MarksProcedure1 The customer has changed the host software or configurations.Y: The customer will have to reconfigure the system.N: Go to step 2.2 Extraneous marks can be caused by bad font data from the host. Ask the customer to downloaddifferent fonts from the host. The problem is solved.Y: Go to Final Actions.N: Go to step 3.3 Generate several System Controller Test Prints. The print job exhibits the extraneous markings.Y: Check the Laser Assembly and EP Cartridge grounds for damage or contamination.N: Go to step 4.4 Open the Front Cover and visually inspect the left drum grounding plate on the EP Cartridge andthe left drum support. They are free of damage and contamination.Y: Go to step 5.N: Repair or replace the grounding spring or the EP Cartridge if necessary.5 Disconnect the host interface cable. Attempt to generate a test print. The test print is free fromdefects.Y: Go to step 6.N: Replace the System Controller, then replace the Printer Engine Controller.6 Check for a problem with the host interface cable. Ensure that the host interface cable meetsspecifications. The cable is within the maximum length.• Parallel: 10 ft. (3.0 meters)Y: If the problem persists, go toRAP 7.4.4 Erratic Operation.N: Ask the customer to provide a cable of proper length.DefinitionHorizontal or vertical bands, or other marks that are print defects caused bybad or incorrect font data, print drivers, electrical noise or other causes notdirectly related to the electrophotographic process.SAS2104www.printcopy.infowww.printcopy.info