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Lexmark C78x User Manual

Lexmark C78x
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Diagnostic information 2-93
5061
Printer does not recognize that one or more output options as being installed.
Remove Paper—
Output Bin x is displayed, POST is incomplete unable to clear the
message.
Step Actions and questions Yes No
1 Excessive static electricity buildup—Check the output
expander control board cover to make sure the ESD
brush ground lead is firmly attached to the output
expander frame. Make sure the ESD brush is not loose
or damaged.
is the ESD brush ground cable correctly installed and
the ESD brush not loose or broken?
Go to step 2 1. Attach the
ground cable if
not installed
correctly.
2. Replace the
cover assembly if
the ESD brush is
loose or
damaged.
2
Output expander assembly mechanical linkage
(cables)—Check the output expander autoconnect
cable and connector for any signs of damage,
especially the connector pins.
Are there any signs of damage to the cable, connector,
or connector pins?
Replace the
autoconnect
cable.
Go to step 3
3
Output expander assembly mechanical linkage
(electrical)Check the cables at J1A, J1B, J2A, and
J2B on the control board to make sure they are
attached securely and correctly.
Are the cables attached securely and correctly?
Go to step 4 Reseat the
cables.
4
Voltage check, base printer autoconnect connector
Turn the power off, remove the output expander option
from the printer, and check the voltages on the base
printer top autoconnect connector. Go to
“Connectors” on page 5-7.
Are the voltages correct?
Go to step 5 The problem is in
the base printer.
Check
autoconnects in
the printer.
5
Voltage check, output expander system board—
Reinstall the output expander option, and check the
voltages at J1A and J1B on the connector.
Are the voltages correct?
Replace the
output expander
option system
board.
Replace the
output expander
option
mechanical
linkage
assembly.
Step Actions and questions Yes No
1 Output sensor flag checkCheck the flag for correct
operation, binds, broken parts, or interference from the
sensor cable.
Is there a problem with the sensor flag?
Replace the flag
or repair as
necessary.
Go to step 2
2
Output bin sensor—Run the sensor test to check the
Output bin sensor for correct operation.
Does the sensor operate correctly?
Contact your next
level of support.
Replace the
sensor assembly.
If this does not fix
the problem,
replace the
“System board
removal” on
page 4-90.

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Lexmark C78x Specifications

General IconGeneral
BrandLexmark
ModelC78x
CategoryPrinter
LanguageEnglish

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