Output tray full service check, Output tray full service – Lexmark 5021-0XX User Manual
Page 163

Diagnostic information
2-85
5021-0XX
Output tray full service check
Step
Questions / actions
Yes
No
1
Ensure output tray full
sensor flag swings with
ease and is not broken or
damaged. Is flag working
properly?
Go to step 2.
Replace paper
exit assembly.
See
assembly
removal” on
page 4-49
2
Turn printer off and remove
I/O board shield. See
for steps to
remove I/O board shield. Is
cable properly connected
to I/O board connector
DCN7?
Go to step 3.
Properly connect
cable.
3
Reconnect operator panel.
Turn printer on. Touch
negative lead of voltmeter
to metal bracket that holds
I/O board to obtain ground.
Touch positive lead to
DCN7 pin 7 to ensure 5
VDC is being supplied to
output tray full sensor. Is 5
VDC present?
Go to step 4.
Go to step 7.
4
Check voltage level on
DCN7 pin 8. Is 5 VDC
present?
Go to step 5.
Go to step 6.
5
Activate output tray full
sensor flag. Check voltage
level on DCN7 pin 8. Is 0
VDC present?
Replace I/O
board. See
. If
problem
persists, replace
engine controller
board. See
“Engine
controller
board removal”
on page 4-55
Replace paper
exit assembly.
See