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ERROR CODE AND TROUBLESHOOTING
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[E420] PFP side cover opened during printing
Classification Error content
Cover open jam PFP side cover open jam
Proce
dure
Check item Result Measure
Next
Step
1
Is the PFP side cover
open?
Yes Remove the paper if there is any, then close
the cover.
No
2
2
Is the PFP side cover
opening/closing switch
working?
(Perform the input check
in the test mode: 03-
[FAX]OFF/[2]/[A])
Yes
3
No • Check if the connector of the PFP side
cover opening/closing switch is
disconnected.
• Check if either of the connectors CN241 or
CN243 on the PFP board is disconnected.
• Check if the connector CN318 on the LGC
board is disconnected.
• Check if the connector pins are
disconnected and the harnesses are open
circuited.
• Check if the conductor patterns on the PFP
board and LGC board are short circuited or
open circuited.
• Replace the PFP side cover opening/
closing switch.
• Replace the PFP board.
• Replace the LGC board.
3
Replacing board • Replace the PFP board.
• Replace the LGC board.
Parts to be replaced Remark
PFP side cover opening/closing
switch
PFP board
LGC board
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