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3.3 Trouble Shooting
3.3.4
Replenishment Cartridge Box Malfunction
Replenisher box door open?
The harness between the replenisher box
door open/close detecting interlock switch
(D724) and PWR4 on the PWR23 circuit
board is poorly connected or broken?
Replenishment cartridge open?
Are solution levels of P1R, P2RA and P2R
above the upper level sensor?
Replace the replenisher box door open/close
detecting interlock switch (D724).
Insert screwdrivers into the two holes and
press the lock arm to release the lock.
Replace the JNE23 circuit board.
1. Pour in water so that all replenisher levels are
above the upper level sensor.
2. Close and open replenisher cartridge box door.
Connect harness correctly,
repair or replace it.
Connect harness correctly,
or repair or replace it.
Connect harness correctly,
or repair or replace it.
Open
Yes
No
Closed
Closed
Open
Yes
No
Solved
Not solved
No
Is the harness between the replenisher cartridge
box upper sensor (D722) and JNE2 on the JNE23
circuit board is poorly connected or broken?
Replace the replenisher cartridge box
upper sensor (D722).
Solved?
Yes
Is the harness between the replenisher cartridge
box lower sensor (D723) and JNE2 on the JNE23
circuit board poorly connected or broken?
Yes
No
Not solved
Replace the replenisher cartridge box
lower sensor (D723).
Solved?
Solved
LII911
Figure1
Lock Arm
Screwdriver
Fig-1