Error codes konica minolta

Code: C2151
Description:
Transfer roller pressure welding alienation.
• 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.
Causes:
• 2nd transfer pressure motor (M3) • 2nd transfer pressure sensor (PS50) • Paper feed/transport drive board (PFTDB)
Remedy:
1. Check the connector between M3-relay CN271B-PFTDB CN8 for proper connection and correct as necessary. 2. Check the connector of M3 for proper drive coupling and correct as necessary. 3. Check the connector between PS50-relay CN271A-PFTDB CN2 for proper connection and correct as necessary. 4. PS50 I/O check, sensor check • Control signal: PFTDB CN2-9 (ON) • Location of electrical component: 5-P 5. M3 load check • Check code: 24 • Multi code: 4, 5 • Control signal: PFTDB CN8-1 to 2 • Location of electrical component: 6-P 6. Replace M3. 7. PFTDB F17 conduction check 8. Replace PFTDB.