Lexmark C935 Series, Service Manual

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Printer Service Manual
5057-XXX
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Duplex left door assembly open
4
Perform a POR.
Does the error continue when the power is turned off/
on?
Replace the 1TM,
3TM, or TTM
controller card
assembly.
Go to “1X 500-
sheet drawer
(1TM)—1TM
controller card
assembly removal”
on page 4-209
, Go
to “3X 500-sheet
drawer (3TM)—3TM
controller card
assembly removal”
on page 4-189
, or
Go to “2000-sheet
dual input (TTM)—
TTM controller
card assembly
removal” on
page 4-163
.
Go to step 5.
Problem solved.
5 Perform a POR.
Does the error continue when the power is turned off/
on?
Replace the upper
printer engine card
assembly.
Go to “Upper
printer engine card
assembly removal”
on page 4-90
.
Problem solved.
Step Check Yes No
1 Check the duplex left door for proper operation.
Does the above component open and close properly?
Go to step 2. Replace the duplex
unit assembly.
Go to “Duplex unit
assembly removal”
on page 4-10
.
2 Check the switch (duplex left door interlock) for proper
operation.
1. Enter the Diagnostics Menu.
2. Select
DUPLEX TESTS.
3. Select Sensor Test.
4. Select Door D duplex left.
Does the display on the operator panel change every
time the actuator on the above switch is operated?
Reconnect the
connector on the
printer engine card
assembly. Go to step 3.
3 Check the switch (duplex left door interlock) for proper
connection.
Is the above switch connected properly?
Replace the switch
(duplex left door
interlock).
Go to “Switch
(duplex left door
interlock) removal”
on page 4-11
.
Replace the
connection.
Step Check Yes No