| Problem |
Causes/check procedures |
Corrective measures |
| (27) An original jams in DP is indicated during copying (jam in the original feed section). Jam code 74 |
Defective switch. |
Run maintenance item U244 and turn the following switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. DP timing switch1, original feed switch, original registration switch |
| Defective motor. |
Run maintenance item U243 and select the following motor on the touch panel to be turned on and off. Check the status and remedy if necessary. Original feed motor, original conveying motor |
| (28) An original jams in DP is indicated during copying (jam in the original conveying section). Jam code 75 |
Defective switch. |
Run maintenance item U244 and turn the following switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. Original registration switch, DP timing switch 1/2 |
| Defective motor. |
Run maintenance item U243 and select the following motor on the touch panel to be turned on and off. Check the status and remedy if necessary. Original feed motor, original conveying motor |
| (29) An original jams in DP is indicated during copying (jam in the original switchback section 1). Jam code 76 |
Defective switch. |
Run maintenance item U244 and turn the following switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. DP timing switch 1, switchback tray switch |
| Defective motor. |
Run maintenance item U243 and select the following motor on the touch panel to be turned on and off. Check the status and remedy if necessary. Original conveying motor, original switchback motor |
| (30) An original jams in DP is indicated during copying (jam in the original switchback section 2). Jam code 77 |
Defective original registration switch. |
Run maintenance item U244 and turn the original registration switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. |
| Defective motor. |
Run maintenance item U243 and select the following motor on the touch panel to be turned on and off. Check the status and remedy if necessary. Original switchback motor, original feed motor |
| (31) A original jam in the DP is indicated as soon as the main power switch is turned on. (DP cover open JAM). Jam code 78 |
A piece of paper torn from original is caught around original feed switch, original registration switch or DP timing switch 1/2. |
Check visually and remove it, if any. |
| Defective switch. |
Run maintenance item U244 and turn the following switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. Original feed switch, original registration switch, DP timing switch 1/2 |
| (32) An original jams in DP is indicated during copying (jam in the original eject section). Jam code 79 |
Defective switch. |
Run maintenance item U244 and turn the following switch on and off manually. Replace the switch if indication of the corresponding switch on the touch panel is not displayed in reverse. DP timing switch 1, original eject switch |
| Defective motor. |
Run maintenance item U243 and select the following motor on the touch panel to be turned on and off. Check the status and remedy if necessary. Original feed motor, original switchback motor |