| Problem |
Causes/check procedures |
Corrective measures |
| (9) A paper jam in the paper feed section is indicated during copying (jam in 3000- sheet paper feeder horizontal paper conveying section). Jam code 17 |
Paper is extremely curled. |
Replace the paper. |
| Check if the paper side guides are deformed. |
Check visually and replace. |
| Defective paper path sensor 1. |
With 5 V DC present at CN6-6 on the PF main PWB, check if CN6-5 on the PF main PWB remains low or high when paper path sensor 1 is turned on and off. If it does, replace paper path sensor 1. |
| Check if PF paper conveying clutch malfunctions. |
Run maintenance item U247 and select PF paper conveying clutch on the touch panel to be turned on and off. Check the status and remedy if necessary. |
| Electrical problem with PF paper conveying clutch. |
Check |
| (10) 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, registration switch |
| Defective feed pulleys or feed rollers. |
Check visually and replace. |
| (11) A paper jam in the paper feed section is indicated during copying (jam in 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 YC3-7 on the PF main PWB, check if YC3- 5 on the PF main PWB remains low or high when the PF feed switch is turned on and off. If it does, replace the PF feed switch. |
| (12) A paper jam in the paper feed section is indicated during copying (jam in MP tray vertical paper conveying section). Jam code 20 |
Broken MP feed 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 |