Ricoh ( Model 4022)

Code Description
C1 Front door open
C2 Exit door
C3 Cassette cover
C4 LCT cover
C5 Sorter open or not latched to machine, or fuse 304 on DC power board
C6 ADF cover
C7 Right side cover
E101 Exposure lamp too long
E103 Frequency problem
E120 Scan home problem
E121 Scan home problem
E124 Scan drive problem
E140 Lens home, or fuse 303 on DC board
E141 Lens home sensor, fuse 303 on DC board
E142 Lens home sensor, fuse 303 on DC board
E143 Lens home sensor, fuse 303 on DC board
E144 Mirror sensor, fuse 303 on DC board
E145 Mirror sensor, fuse 303 on DC board
E191 Image density sensor error
E302 Charge roller problem or HVT problem
E346 Bias loss
E351 Image density sensor problem
E352 TD sensor error
E353 Vsp problem. Dirty or bad image density sensor
E354 Vsg problem. Same as E353
E355 Toner density sensor problem
E356 Same as 355
E405 Transfer belt or charge roller drive
E440 Main drive
E442 Drum charge thermistor
E501 Upper lift motor
E502 Lower lift motor
E503 1st tray motor
E504 2nd tray motor
E505 3rd tray motor
E506 Tray main motor drive problem
E507 LCTl lift motor
E522 Jogger sensor
E523 Jogger sensor
E524 Jogger sensor
E525 Jogger sensor
E541 Fuser thermistor
E542 Fuser temperature too low
E543 Fuser temperature too high
E544 Fuser temperature too high
E547 Fuser lamp won’t shut off
E548 Fuser temperature too high or too low
E620 Communication problem between main board and ARDF
E621 Communication problem between main board and sorter
E623 Communication problem between main board and paper trays
E720 Sorter stapler timing roller sensor
E721 Sorter stapler bin lift sensor
E722 Sorter stapler jogger sensor
E723 Sorter stapler grip sensor
E724 Sorter stapler error
E900 Copy counter
E901 Copy counter
U2 Key counter
U6 Fuser unit not installed properly
U7 Duplex unit