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EricOrdorica

fuji fp363sc al E835 error message

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E835 means NC1 setting unit limit detector abnormal. The cartridge setting section upper (D19) and lower (D20) detectors are both ON or OFF when starting the system without cartridge opening. The cartridge setting section upper and lower detectors are ON when starting cartridge opening.
This error can cause)
1. Faulty cartridge setting section upper or lower detector
2. Poor connection, open or short circuit of the wire harness between the cartridge setting section upper or lower detector and connectors on CTP33 board
3. Faulty CTP33 circuit board
Check sensors ( +5V power supply, ground and output ) . Output level should change level, when closed, or opened ( 5V, or 0V ) . To make sure can switch sensors ( upper and lower ) . If power supply good, but output level not correct - replace sensor. Original sensor is Sharp GP1A71A1 . Can use other sensor model. Some time ago I used EESX4235AP2 ( made by Omron ) . Sensor connector was slightly different, so had cut off piece of plastic to have possibility plug in original connector.
If both sensors work then need check connections. If all OK, but still doesn't work need repair, or change CTP33 board.

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Thank you for the help. We switched the boards out. we are still receiving the same message along with E868 message. 
 

If anyone has more information or could provide step by step help on how to resolve the trouble, it would be greatly appreciated. 

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Problems are resolved. After replacing circuit board, new lower switch for NC1 was replaced, but still received the same error messages. We found, then, found that one of the pumps was clogged. We flushed the hose and cleaned it with a pipe cleaner. We still had the error even after all that. So we drained all the chems of the replenisher tanks and they seemed to resolve everything. Thank you for helping. 

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