Lexmark C752 Service Manual page 132

5060-2XX
The printer does not recognize one or more output options as installed.
Note: If more than a single output option is installed, check each one to see if the printer recognizes any single
option as being installed. If the printer recognizes any of the output options then the base printer autoconnect
system is operating correctly and the problem is in the unrecognized option. Continue with this service check or
go to service check of the failing output option.
Step Action and questions
1 Options - Make sure that the output expander option is
the only output option that is not recognized by the
base printer.
Is this the only output option not recognized by the
base printer?
2 Mechanical linkage (cables) - Check the 5-Bin Mailbox
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?
3 Mechanical linkage (electrical) - Make sure the
autoconnect cables are connected correctly to the
control board.
Are the cables attached securely and correctly?
4 Voltage check, base printer autoconnect connector -
Turn the power off and remove the 5-Bin Mailbox
option from the printer. Check the voltages on the base
printer top autoconnect connector. See
"Autoconnect—top" on page
Are the voltages correct?
5
Voltage check, 5-Bin Mailbox system board - Reinstall
the 5-Bin Mailbox option and check the voltages at J1A
and J1B on the connector.
Are the voltages correct?
2-98
Service Manual
5-18.
Yes No
Go to step 2 Check the
autoconnect
system in base
printer
Replace the Go to step 3
autoconnect
cable
Go to step 4 Reseat the
cables
Go to step 5 Check the
autoconnects in
the printer
Replace the Replace the
output expander output expander
option system option
board mechanical
linkage assembly