| Problem |
Causes/check procedures |
Corrective measures |
| (13) 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 or MP feed switch 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, MP feed switch |
| 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. |
| 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, MP paper conveying clutch |
| Electrical problem with clutch. |
Check |
| Check if PF paper feed clutch 1/2 malfunctions. |
Run maintenance item U247 and select PF paper feed clutch 1/2 on the touch panel to be turned on and off. Check the status and remedy if necessary. |
| Electrical problem with PF paper feed clutch 1/2. |
Check |
| Defective feed pulleys or feed rollers. |
Check visually and replace. |
| (14) A paper jam in the paper feed section is indicated during copying (multiple sheets in vertical conveying section). Jam code 22 |
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 |
| Defective feed pulleys or feed rollers. |
Check visually and replace. |
| (15) A paper jam in the paper feed section is indicated during copying (multiple sheets in MP tray conveying section). Jam code 23 |
Broken MP feed switch 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. MP feed switch, registration switch |
| (16) A paper jam in the paper conveying section is indicated during copying (jam in registration/transfer section). Jam code 30 |
Broken feed switch 1 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, registration switch |
| The contact between the right and left registration rollers is not correct. |
Check visually and replace. |