Lexmark Optra E Service Manual - Page 38

Cover Interlock Service Check, D-Roll Assembly Service Check, Low Voltage Power Supply

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4026-0XX Cover Interlock Service Check FRU Action 1 Right Hand Check the right hand transfer bracket actuator Transfer arm to be sure it contacts the interlock switch Bracket actuator mounted in the LVPS. Replace the bracket if the arm is damaged or broken. 2 Top Cover If the interlock switch is being actuated correctly, Interlock check the continuity of the switch between Switch CN7A-1 and CN7A-2 on the cable as you acti- vate the switch. If incorrect, replace the LVPS. 3 LVPS Be sure the voltage at CN7-1 measures +24 V dc. If incorrect, turn the printer power off and disconnect the LVPS cable from the engine board. Turn the printer power on. The voltage on the LVPS cable pin 1 should measure approximately +24 V dc. If incorrect, replace the LVPS. If correct, go to the "Low Voltage Power Supply Service Check" on page 2-22. D-Roll Assembly Service Check FRU Action 1 D-Roll Check the D-roll for wear, broken, or worn parts. Replace as necessary. 2 D-Roll Clutch Be sure the clutch assembly operates correctly. Assembly Replace as necessary. 3 Solenoid Be sure the paper feed solenoid operates correctly. If the solenoid fails to pick, go to the "Paper Take-Up Solenoid Service Check" on page 2-32. 4 Paper Feed Be sure the main drive/paper feed gears operate Drive Gears correctly. Check for broken teeth or damaged gears. Replace as necessary. 2-16

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4026-0XX
2-16
Cover Interlock Service Check
D-Roll Assembly Service Check
FRU
Action
1
Right Hand
Transfer
Bracket
Check the right hand transfer bracket actuator
arm to be sure it contacts the interlock switch
actuator mounted in the LVPS.
Replace the bracket if the arm is damaged or
broken.
2
Top Cover
Interlock
Switch
If the interlock switch is being actuated correctly,
check the continuity of the switch between
CN7A-1 and CN7A-2 on the cable as you acti-
vate the switch. If incorrect, replace the LVPS.
3
LVPS
Be sure the voltage at CN7-1 measures +24 V
dc. If incorrect, turn the printer power off and
disconnect the LVPS cable from the engine
board. Turn the printer power on. The voltage on
the LVPS cable pin 1 should measure approxi-
mately +24 V dc. If incorrect, replace the LVPS.
If correct, go to the
“Low Voltage Power Supply
Service Check” on page 2-22
.
FRU
Action
1
D-Roll
Check the D-roll for wear, broken, or worn parts.
Replace as necessary.
2
D-Roll Clutch
Assembly
Be sure the clutch assembly operates correctly.
Replace as necessary.
3
Solenoid
Be sure the paper feed solenoid operates cor-
rectly. If the solenoid fails to pick, go to the
“Paper Take-Up Solenoid Service Check” on
page 2-32
.
4
Paper Feed
Drive Gears
Be sure the main drive/paper feed gears operate
correctly. Check for broken teeth or damaged
gears. Replace as necessary.