Lexmark 5021-0XX - Manual (Page 175)

Diagnostic information 2-97
5021-0XX
Waste toner bottle service check
Step Questions / actions Yes No
1 Remove waste toner bottle
from printer. Inside waste
toner bottle holder, check
sensor flag. Does flag work
properly and is it not
damaged? Go to step 2. Replace waste
toner bottle
holder. See
“Waste toner
bottle holder
removal” on
page 4-32
.
2 Reinstall waste toner
bottle. Does error clear? Problem solved. Go to step 3.
3 Replace waste toner bottle
holder. See
“Waste toner
bottle holder removal” on
page 4-32
. Does error
clear?
Problem solved. Go to step 4.
4 Replace I/O board.
See
“I/O board removal”
on page 4-70 . Does error
clear?
Problem solved. Replace engine
controller board.
See
“Engine
controller
board removal”
on page 4-55
.