Error codes konica minolta

Code: 75-43
Description:
Misfeed at RU section.
The RU transport sensor (PS60) is not turned OFF (unlocked) even after the set period of time has elapsed after it is turned ON (blocked).
Causes:

• RU transport sensor (PS60) • FS control board (FSCB)
Remedy:
(a) When FS-536 or FS-536SD is installed. 1 Initial check items 2 PS60 I/O check, sensor check FSCB J6-7 (ON) FS-536/FS-536SD 12-K 3 Replace FSCB.
(b) When FS-537 or FS-537SD is installed. 1 Initial check items - - 2 PS60 I/O check, sensor check FSCB J8-15 (ON) FS-537/FS-537SD 9-K 3 Replace FSCB.