Xerox WorkCentre Pro 423 Service Manual page 160

WorkCentre Pro 423/428
F4-36 FINISHER TIMING SENSOR Jam (BSD 12.6)
Chain Link Codes for Check
l [Chain12 Func3] FINISHER TIMING SENSOR
Check Items
l Supply voltage drop at customer
l Check the circuit between the FINISHER TIMING SENSOR
and FINISHER CONT PWB. If no problem is found, replace
the FINISHER TIMING SENSOR. (PL13.8)
F4-41 FINISHER EXIT SENSOR Jam (BSD 12.7)
Chain Link Codes for Check
l [Chain12 Func4] FINISHER EXIT SENSOR
l [Chain12 Func21] FINISHER TRANSFER MOTOR
Check Items
l FINISHER EXIT SENSOR defect
l FINISHER TRANSFER MOTOR defect
l EXIT ROLL rotation error
l TRANSFER BELT rotation error
l SENSOR actuator broken or missing
l ROLL dirty or worn
l BELT missing or cut
2-128
03/02
F4-42 FINISHER EXIT SENSOR Jam (BSD 12.7)
Chain Link Codes for Check
l [Chain12 Func4] FINISHER EXIT SENSOR
l [Chain12 Func21] FINISHER Transport MOTOR
Check Items
l FINISHER EXIT SENSOR defect
l FINISHER Transport MOTOR defect
l EXIT ROLL rotation error
l Transport BELT rotation error
l SENSOR actuator broken or missing
l ROLL dirty or worn
l BELT missing or cut
l Transport error due to foreign matter on paper path
F4-46 FINISHER EXIT SENSOR Jam (BSD 12.7)
Chain Link Codes for Check
l [Chain12 Func4] FINISHER EXIT SENSOR
Check Items
l Supply voltage drop at customer
l Check the circuit between the FINISHER EXIT SENSOR and
FINISHER CONT PWB. If no problem is found, replace the
FINISHER EXIT SENSOR. (PL13.12)
F7-1 FINISHER Interlock Open (BSD 12.2)
Close the L/H LOWER COVER and L/H UPPERE COVER.
Does the error display disappear?
Y N
Open the L/H LOWER COVER and press the actuator of
the PAPER PATH COVER SENSOR with a screwdriver.
Does the error display disappear?
Y N
Perform the General-purpose transmittion sensor FIP.
Check that the Cover is installed securely.
End of work.
CHAPTER 2 TROUBLESHOOTING
Level 2 Troubleshooting
F7-2 FINISHER Interlock Open (BSD 12.1)
Close the FRONT DOOR.
Does the error display disappear?
Y N
Remove the FRONT COVER and press the actuator of the
STAPLER COVER SW by hand.
Does the error display disappear?
Y N
Reinstall the FRONT COVER and close the FRONT
DOOR.
Is the voltage + 24 VDC between the FINISHER
CONT PWB CN3-3(+) and GND(-)?
Y N
Is the voltage + 24 VDC between the FINISHER
CONT PWB CN3-1(+) and GND(-)?
Y N
Is the voltage + 24 VDC between the FINI-
SHER CONT PWB CN1-1(+) and GND(-)?
Y N
Perform +24VDC FIP.
Replace the FINISHER CONT
PWB.(PL13.16)
Keep pressing the actuator of the STAPLER
COVER SW. Is the voltage +24 VDC between
the STAPLER COVER SW connector and GND?
Y N
Replace the STAPLER COVER
SW.(PL13.2)
Check between the STAPLER COVER SW and
INISHER CONT PWB for an open wire or poor
contact.
Replace the FINISHER CONT PWB. (PL13.16)
Check the FRONT DOOR actuator for damage.
End of work.