Canon LBP-1120 Service Manual

Also see for Laser Shot LBP-1120: Specifications User guide Getting started guide

Contents

4 - 11CHAPTER 42. Dirty pressure roller.Action: Clean the pressure roller. If the dirt cannot be removed, replace the pressure roller.3. Scar(s) or dent(s) on the pressure roller surface.Action: Replace the pressure roller.4. Scar(s) or dent(s) on the fixing film.Action: Replace the fixing film unit.5. Deterioration of the thermistor.Action: Replace the fixing film unit.II-13. Image Distortion1. Poor contact in the connectors on the laser/scanner unit.Action: Reconnect the connector J208F on the engine controller PCB, or connector J801F and J802Fon the laser/scanner unit correctly.2. Defective laser/scanner unit.Action: Replace the laser/scanner unit.3. Defective engine controller PCB.Action: Replace the engine controller PCB.II-14. Faulty Registration1. Dirty or worn pickup roller.Action: Clean the pickup roller. Replace the roller if the dirt cannot be removed or the roller is worn.2. Dirty or worn feed roller.Action: Clean the feed roller. Replace the roller if the dirt cannot be removed or the roller is worn.3. Defective paper top sensing lever.Action: Replace the lever if it does not move smoothly or is damaged.