| Problem |
Causes/check procedures |
Corrective measures |
| (7) A paper jam in the paper feed section is indicated during copying (jam in vertical paper conveying section). Jam code 18 |
Broken feed switch 1/2/3 actuator. |
Check visually and replace switch. |
| Defective switch. |
Run maintenance item U031 and turn following switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. Feed switch 1/2/3 |
| Defective feed pulleys or feed rollers. |
Check visually and replace. |
| (8) A paper jam in the paper feed section is indicated during copying (jam in optional paper feeder vertical paper conveying section). Jam code 19 |
Broken feed switch 3 actuator. |
Check visually and replace switch. |
| Defective feed switch 3. |
Run maintenance item U031 and turn feed switch 3 on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. |
| Broken PF feed switch actuator. |
Check visually and replace switch. |
| Defective PF feed switch. |
With 5 V DC present at YC2-8 on the PF main PWB, check if YC2- 7 on the PF main PWB remains low when the PF feed switch is turned on and off. If it does, replace the PF feed switch. |
| (9) A paper jam in the paper feed section is indicated during copying (jam in MP tray paper conveying section). Jam code 20 |
Broken MP feed switch or registration switch actuator. |
Check visually and replace switch. |
| Defective switch. |
Run maintenance item U031 and turn following switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. MP feed switch, registration switch |
| (10) A paper jam in the paper feed section is indicated during copying (multiple sheets in paper feed section). Jam code 21 |
Broken feed switch 1/2/3 actuator. |
Check visually and replace switch. |
| Defective switch. |
Run maintenance item U031 and turn switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. Feed switch 1/2/3 |
| Broken PF feed switch actuator. |
Check visually and replace switch. |
| Defective PF feed switch. |
With 5 V DC present at YC2-8 on the PF main PWB, check if YC2- 7 on the PF main PWB remains low when the PF feed switch is turned on and off. If it does, replace the PF feed switch. |
| Check if the clutch malfunctions. |
Run maintenance item U032 and select following clutch on the touch panel to be turned on and off. Check the status and remedy if necessary. paper feed clutch 1/2 |
| Electrical problem with clutch. |
Check |
| Check if PF paper feed clutch 1 malfunctions. |
Run maintenance item U247 and select PF paper feed clutch 1 on the touch panel to be turned on and off. Check the status and remedy if necessary. |
| Electrical problem with PF paper feed clutch 1. |
Check |
| Defective feed pulleys or feed rollers. |
Check visually and replace. |