Lexmark 632n - T B/W Laser Printer Service Manual page 106

Printer does not recognize one or more output expander options as being
installed.
Service tip: If more than a single output expander 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
expander options then the base printer autoconnect system is operating correctly and the problem is
in the unrecognized expander option.
FRU
1 Output expander option
2 Output expander assembly
mechanical linkage
202 Paper Jam Open Rear Door message displays. A sheet of paper is
jammed prior to the pass thru sensor flag.
202 Paper Jam Open Rear Door message displays. A sheet of paper feeds out
to the standard bin even though bin x is selected. Paper exits half way out of
the redrive.
Service tip: For this type of problem check the sub error codes. They can help isolate the problem.
202 Paper Jam messages can also occur prior to the output expander pass thru sensor.
FRU
1 Output expander drive belt
drive
Pulley drive belt
Idler pulley belt tension
spring
Mechanical linkage
2
DC motor assembly
Action
Make sure the output expander option is the only option that is not
recognized by the base printer. If the output expander is the only
option not recognized by the printer, continue with step 2. If not,
check the autoconnects of the options not recognized and the
interconnect board and cable connections.
Check the autoconnects for damage, especially the connector pins.
Remove the left and right side covers. Remove the front control board
cover. Check the cables at J1A, J1B, J2A and J2B on the control
board to make sure they are attached securely and correctly.
Remove the output expander and check the voltages on the output
bin autoconnect located on the top left rear of the printer. Go to
"Autoconnect - Top" on page
reinstall the output expander unit and check the voltages at J1A and
J1B on the connector. If correct, replace the output expander control
board. If incorrect, replace the output expander assembly mechanical
linkage.
Action
Check to ensure the output expander drive belt is correctly installed
on the drive pulley and belt idler pulley. Check the belt tension spring
to make sure it is not loose or broken. Repair as necessary.
If the DC motor is functioning properly check the gears, clutch, and
other linkage parts for correct operation and wear, broken gear teeth,
or damaged parts. If incorrect, replace the mechanical linkage/DC
motor assembly.
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5-11. If the voltages are correct,
Diagnostic information
4060-xxx
2-73