| Problem |
Causes/check procedures |
Corrective measures |
| (28) A paper jam in optional document finisher is indicated during copying (eject sensor stay jam). Jam code 83 |
Built-in finisher |
| Defective paper conveying switch. |
With 5 V DC present at YC2-23 on the finisher control PWB, check if YC2-21 on the finisher control PWB remains low when the paper conveying switch is turned on and off. If it does, replace the paper conveying switch. |
| Check if the eject roller or eject pulley is deformed. |
Check and remedy. |
| (29) A paper jam in optional document finisher is indicated during copying (eject sensor non-arrival jam). Jam code 92 |
Defective eject sensor. |
With 5 V DC present at CN5-4 on the finisher main PWB, check if CN5-6 on the finisher main PWB remains low or high when the eject sensor is turned on and off. If it does, replace the eject sensor. |
| Check if the paper conveying motor malfunctions. |
Check. |
| Check if the eject roller and eject pulley contact each other. |
Check and remedy. |
| Check if the eject guide is deformed. |
Check and remedy. |
| Defective finisher main PWB. |
Replace the finisher main PWB and check for correct operation. |
| (30) A paper jam in optional document finisher is indicated during copying (reverse sensor jam). Jam code 93 |
Defective reverse sensor. |
With 5 V DC present at CN14-5 on the finisher main PWB, check if CN14-7 on the finisher main PWB remains low or high when the reverse sensor is turned on and off. If it does, replace the reverse sensor. |
| Check if the reverse motor malfunctions. |
Check. |
| Check if the reverse roller and reverse pulley contact each other. |
Check and remedy. |
| Check if the reverse guide is deformed. |
Check and remedy. |
| Defective finisher main PWB. |
Replace the finisher main PWB and check for correct operation. |
| (31) A paper jam in optional document finisher is indicated during copying (paper entry sensor stay jam). Jam code 94 |
Extremely curled paper. |
Change the paper. |
| Defective paper entry sensor. |
With 5 V DC present at CN14-1and CN14-3 on the finisher main PWB, check if CN14-2 and CN14-4 on the main PCB remains low or high when the paper entry sensor is turned on and off. If it does, replace the paper entry sensor. |
| Check if the paper entry guide is deformed. |
Check and remedy. |
| Defective finisher main PWB. |
Replace the finisher main PWB and check for correct operation. |
| (32) A paper jam in optional document finisher is indicated during copying (paper conveying sensor jam). Jam code 95 |
Defective paper conveying sensor. |
With 5 V DC present at CN4-4 on the finisher main PWB, check if CN4-6 on the finisher main PWB remains low or high when the paper conveying sensor is turned on and off. If it does, replace the paper conveying sensor. |
| Check if the paper conveying motor malfunctions. |
Check. |
| Check if the paper conveying roller and paper conveying pulley contact each other. |
Check and remedy. |
| Check if the paper conveying guide is deformed. |
Check and remedy. |
| Defective finisher main PWB. |
Replace the finisher main PWB and check for correct operation. |
| (33) A paper jam in optional built-in finisher is indicated during copying (jam between finisher and machine). Jam code 96 |
Defective paper conveying switch. |
With 5 V DC present at YC2-23 on the finisher control PWB, check if YC2-21 on the finisher control PWB remains low when the paper conveying switch is turned on and off. If it does, replace the paper conveying switch. |
| Check if the eject roller or eject pulley is deformed. |
Check and remedy. |