2-8 Service Manual
4023-001
Close Door <G> The duplex side door is
open.
Check sensor (S1) and
connectors. Replace as
necessary.
Note: Replace printer
main engine board (PWB-
A) if necessary.
Close Cover <H> The horizontal transfer
unit cover is open.
Check sensor (PC4) and
connectors. Replace as
necessary.
Note: Replace printer
main engine board (PWB-
A) if necessary.
Close Cover <L>
Close Cover <J>
The staple unit cover is
open.
Check switch (S4) and
connectors. Replace as
necessary.
Note: Replace the
mailbox main board if
necessary.
Close Cover <M> The finisher top cover is
open.
Check switch (S1) and
connectors. Replace as
necessary.
Note: Replace the
finisher main board PWB-
A if necessary.
Close Cover <N> The finisher bin cover is
open.
Check switch (S7) and
connectors. Replace as
necessary.
Note: Replace the
finisher main board PWB-
A if necessary.
Empty Box K The hole punch count
has exceeded the hole
punch limit.
Empty the cardboard box
which contains the
discarded holes (Box K).
Reset the hole punch
counter. See
“Resetting
Hole Punch Counter” on
page 4-12
.
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