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TROUBLESHOOTING
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5
[E44] PFU cover opened during printing
Is the PFU cover open?
YES Remove the paper if there is any, then close the cover.
NO
Is the PFU cover opening/closing switch working?
(Perform the input check in the test mode: 03-[INTERRUPT]OFF/[9]/[2])
l
l
l
l
l
l
l
l
NO 1) Check if the connector of the PFU cover opening/closing switch is
disconnected.
2) Check if the connector CN4 on the MAIN board is disconnected.
3) Check if the connector pins are disconnected and the harnesses are
open circuited.
4) Check if the conductor pattern on the MAIN board is short circuited or
open circuited.
5) Replace the PFU cover opening/closing switch.
6) Replace the MAIN board.
YES
Replace the MAIN board.
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