Lexmark 5021-0XX - Manual (Page 132)

2-54 Service Manual
5021-0XX
915—Erase lamp service check
Step Questions / actions Yes No
1 Turn printer off and remove
toner cartridges and
photodeveloper cartridge.
Check erase lamp cable for
proper connection. Is erase
lamp cable properly
connected? Go to step 2. Properly connect
erase lamp.
Retest printer. If
error clears,
problem solved,
otherwise go to
step 2.
2 Check erase lamp for any
visible damage. Is erase
lamp damaged? Replace erase
lamp. See
“Erase lamp
removal” on
page 4-27
.
Retest printer. If
error clears,
problem solved,
otherwise
remove toner
cartridges and
photodeveloper
cartridge and go
to step 3.
Go to step 3.
3 Set multimeter to check
diodes. Looking at erase
lamp through front cover,
touch meter positive lead to
left LED connection and
meter negative lead to right
LED connection. LED
should illuminate. Check all
LEDs on erase lamp board.
Do any LEDs fail to
illuminate? Replace erase
lamp. See
“Erase lamp
removal” on
page 4-27
.
Retest printer. If
error clears,
problem solved,
otherwise go to
step 4.
Go to step 4.
4 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
DCN15?
Go to step 5. Properly connect
cable. Retest
printer. If error
clears, problem
solved,
otherwise go to
step 5.