Lexmark 5021-0XX - 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
“Paper exit
assembly
removal” on
page 4-49
.
2 Turn printer off and remove
I/O board shield. See
“I/O
board removal” on
page 4-70
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
“I/O
board removal”
on page 4-70
. If
problem
persists, replace
engine controller
board. See
“Engine
controller
board removal”
on page 4-55
.
Replace paper
exit assembly.
See
“Paper exit
assembly
removal” on
page 4-49
.