4-10 Phaser 6121MFP Service ManualGeneral TroubleshootingMultiple-Sheet Pick1. Ensure that the paper is in good condition and is listed as supported media;quality office laser printer paper works best.2. Ensure that the printer is printing within its environmental specifications byprinting and reviewing the Status page.3. Remove the tray and remove the media, fan, and reload the media. Ensurethat the guides are securely against the paper and the tray has not been overfilled.4. Try loading paper from a fresh ream, fan the paper, and then insert into thetray or flip existing paper over.5. Check the tray’s Retard Roller for damage.6. Clean the Feed Rollers with a clean, dry, lint-free wipe.7. Replace the Feed Rollers.8. Replace the paper tray.Mis-Pick1. Check that the correct type of media for the tray is being used and the paperguides are set correctly.2. Remove, fan, and reload the media. Ensure that the tray has not been overfilled.3. Try loading paper from a fresh ream, fan the paper, and then insert into thetray or flip existing paper over.4. Clean the Feed Rollers with a clean, dry, lint-free wipe.Control Panel TroubleshootingPrinter Does Not Come to a “Ready” State1. Reseat connectors on the Image Processor Board.2. Refer to “Power Supply Problems” on page 4-26.3. Replace the Control Panel (page 8-54).4. Repair/replace the Control Panel wiring harness.Control Panel LED is On, Control Panel Display is Blank1. Remove and reseat the Image Processor Board connectors.2. Replace the Control Panel (page 8-54).3. Inspect and repair the Control Panel wiring harness.4. Replace the Image Processor Board (page 8-66).
