Lexmark MB790MFP Service Manual page 105

7462
Error
code or
message
28x.42 Right tamper does not
leave home position
x = bin
failure
number
Applies to:
StapleSmart finisher
28x.43 Right tamper does not
move to home
x = bin
position failure.
number
Applies to:
StapleSmart finisher
28x.44 Eject home position
jam
x = bin
number Applies to:
StapleSmart finisher
28x.45 Eject home position
jam
x = bin
number Applies to:
StapleSmart finisher
2-68
Service Manual
Error contents
The sensor (right tamper HP)
does not detect that the tamper
has moved from home position.
The sensor (right tamper HP)
does not detect that the tamper
has reached home position.
The sensor (eject HP) does not
detect that the eject
mechanism is operating.
The sensor (eject HP) does not
detect the home position upon
completion of normal media
eject operation.
Description/Action Possible repair actions
1. Check all the connections on
the output option controller
card.
2. Check the tamper drive belt
for damage and replace if
needed.
3. Replace the right tamper
motor assembly.
Go to "MFP stapler assembly
tamper drive motor
assembly removal" on
page 4-210.
4. Replace the sensor (tamper
HP).
Go to "MFP stapler assembly
sensor (tamper HP left and
right) removal" on
page 4-217.
4. Replace the output option if
problem remains.
1. Check all the connections on
the output option controller
card.
2. Check the tamper drive belt
for damage and replace if
needed.
3. Replace the right tamper
motor assembly.
Go to "MFP stapler assembly
tamper drive motor
assembly removal" on
page 4-210.
4. Replace the sensor (tamper
HP).
Go to "MFP stapler assembly
sensor (tamper HP left and
right) removal" on
page 4-217.
4. Replace the output option if
problem remains.
1. Check all the connections on
the output option controller
card.
2. Replace the output option if
problem remains.
1. Check all the connections on
the output option controller
card.
2. Replace the output option if
problem remains.
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