Canon LBP 2460 Service Manual - Page 261

CHAPTER 4 M-17 No Paper Pick-Up from Multi-purpose Tray 1. Video controller PCB is defective. Action: Make a test print from the multi-purpose tray using the printer driver tester. If the paper is picked up correctly, replace the video controller PCB. 2. Gears are damaged. Action: Remove the manual feed pick-up unit and check the gears. Replace any damaged gears. 3. The manual feed clutch is defective. Action: Remove the manual feed pick-up unit and disconnect manual feed clutch connector J1303 from the multi-purpose tray PCB. Measure the resistance between connectors J1303-1 and J1303-2 on the cable side. If it is not about 155 , replace the manual feed clutch. 4. The multi-purpose tray PCB is defective. Action: Replace the multi-purpose tray PCB. 5. The DC controller PCB is defective. Action: Replace the DC controller PCB. M-18 No Paper Pick-Up from Upper or Lower Cassette 1. Video controller PCB is defective. Action: Use the printer driver tester to make a test print from the cassette with a paper pickup failure. If the paper is picked up correctly from the cassette, replace the video controller PCB. 2. Pick-up drive unit is damaged. Action: Remove the pick-up unit and replace any damaged parts. 3. The pick-up motor is defective. Action: Use the printer driver tester to rotate the paper pick-up motor. If it does not rotate, replace it. 4. The cassette pick-up solenoid is defective. Action: Remove the pick-up unit, and disconnect cassette pick-up solenoid connector J1203 from the pick-up PCB. Measure the resistance between connectors J1203-1 and J1203-2 on the cable side. If it is not about 190 , replace the cassette pick-up solenoid. 5. The pick-up PCB is defective. Action: Replace the pick-up PCB. 6. The DC controller PCB is defective. Action: Replace the DC controller PCB. 4 - 47