Lexmark 5021-0XX - Manual (Page 121)

Diagnostic information 2-43
5021-0XX
908—Black toner retract solenoid service check
Step Questions / actions Yes No
1 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.
Disconnect DCN4
connector from I/O board.
Measure resistance
between cable pins 1 and
2. Is resistance between
162 and 198 ohms?
Replace I/O
board. See
“I/O
board removal”
on page 4-70
.
Go to step 5.
Go to step 2.
2 Remove items to expose
toner retract solenoid. See
“Toner retract solenoid
and cam removal” on
page 4-64
for steps. Check
toner retract solenoid cable
connection. Is cable
properly connected?
Go to step 3. Properly connect
cable.
Reassemble and
retest printer.
3 Check toner retract
solenoid cable and
connecting cable for visible
damage. Is either cable
damaged? Replace
damaged cable
or toner retract
solenoid. See
“Toner retract
solenoid and
cam removal”
on page 4-64
.
Reassemble and
retest printer.
Go to step 4.
4 Disconnect toner retract
solenoid cable from cable
that attaches to I/O board.
Check cable continuity from
DCN4 pins 1 and 2 to
connector that attaches to
toner retract solenoid.
Ensure that pins are not
shorted. Is cable okay? Replace toner
retract solenoid.
See
“Toner
retract solenoid
and cam
removal” on
page 4-64
.
Reassemble and
retest printer.
Replace cable.
Reassemble and
retest printer.