C2151 (bizhub C759/C659)
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Contents
| Trouble type | C2151: Transfer roller pressure welding alienation |
| Rank | B |
| Trouble detection condition | -The 2nd transfer pressure sensor (PS50) is not turned OFF (unblock) (retracting) even after the lapse of a given period of time after the 2nd transfer pressure motor (M3) has started rotating during the 2nd image transfer roller is retracting. -The 2nd transfer pressure sensor (PS50) is not turned ON (block) (pressuring) even after the lapse of a given period of time after the 2nd transfer pressure motor (M3) has started rotating during the 2nd image transfer roller is pressuring. |
| Trouble isolation | – |
| Relevant electrical parts | -2nd transfer pressure motor (M3) -2nd transfer pressure sensor (PS50) -Paper feed/transport drive board (PFTDB) |
Procedure
- Check the connector between M3-relay CN271B-PFTDB CN8 for proper connection and correct as necessary.
- Check the connector of M3 for proper drive coupling and correct as necessary.
- Check the connector between PS50-relay CN271A-PFTDB CN2 for proper connection and correct as necessary.
- PS50 I/O check, sensor check
- Control signal: PFTDB CN2-9 (ON)
- Location of electrical component: 5-P
- M3 load check
- Check code: 24
- Multi code: 4, 5
- Control signal: PFTDB CN8-1 to 2
- Location of electrical component: 6-P
- Replace M3. (Part# A0P0R75400)
- PFTDB F17 conduction check
- Replace PFTDB. (Part# A795H00200)
L.3.9.1 (Link to the Field Service Manual)