image-quality TroubleshootingPhaser® 3500 Laser Printer Service Manual3-11Unfused ImagePart or all of the image isunfused.■ Paper quality (damp paper)■ Operating environment■ Remote Control Panelsettings■ Fuser Assembly■ Main Board1. Paper is too thick, damp orcontains a high percentage ofcotton.2. Printer is not installed inspecified environment.3. Verify Remote Control Panelsettings, such as envelope.4. Inspect /clean/replace Fuserassembly as necessary.5. Replace Main Board.Skewed ImageThe printed image is not parallelwith the sides of the page.■ Paper■ Paper tray■ Pick-up roller assembly/Paper transportation■ Fuser Assembly1. Inspect paper for damage.Replace as necessary.2. Check paper tray for damage.Properly install fresh paper inthe paper tray.3. Inspect Pick-up rollerassembly. Replace asnecessary.4. Inspect paper transportationareas for proper operation.5. Inspect /clean/replace Fuserassembly as necessary.Skips/SmearsSkips, loss or stretching of theimage in bands across theprocess direction.Smears, the distortion of theimage in bands across theprocess direction. Causes imageto appear blurred orcompressed.■ Paper transportation■ Main drive motor assembly■ Fuser Assembly■ Print Cartridge1. Inspect paper transportationareas for proper operation.2. Inspect main drive motorassembly for damage or worngears. Replace as necessary.3. Inspect /clean/replace Fuserassembly as necessary.4. Replace Print Cartridge.OHP Print DistortionTrembling appearance whenprinting on transparencies.■ Remote Control Panelsettings■ Recommended Media■ Transfer roller voltage1. Verify Remote Control Panelis configured to Transparencymode.2. Verify transparency meetsprinter specifications.3. Inspect the Transfer Rollerspring tension and bearingcontacts.4. Replace Power Supply Board.Image Defect Possible Causes Solutions
