Xerox DocuColor 12/DCCS50, Service Manual

Page: 1153 / 1617

1/05
8d-11 DocuColor 12/DCCS50
11-115 Mailbox Vertical Sensor / Bin 1 Sensor On
Finisher/Sorter
Reissue
11-115 Mailbox Vertical Sensor / Bin 1 Sensor On Jam RAP
The Mailbox Vertical Sensor did not detect the lead edge of the paper within the specified time
after the Decurler Exit Sensor detected the lead edge of the same paper.
Initial Actions
Refer to BSD12.5, BSD12.8 , BSD12.9, and BSD12.17 for the following procedure.
Check for the following:
•
Obstructions in the Mailbox paper path
• Bent or out of position paper chutes/guides in the Mailbox paper path
• Ensure that the Mailbox front Door is closed properly, in order to provide proper nip pres-
sure to the Vertical Transport Rolls.
• Ensure that connectors P/J1004 on the Mailbox PWB, P/J1022 double plug, P/J1023
and P/J1024 , on the Mailbox Vertical Sensor is seated correctly and there are no obvious
crimped or broken wires.
Procedure
The lead edge of the paper is at or past the Mailbox Vertical Sensor
Y
N
Enter dC330 012-005 Mailbox Drive Motor. Press Start . The Mailbox Transport Roll is
rotating.
Y
N
The Mailbox drive Belt is moving.
Y N
The Mailbox Drive Motor is rotating
Y
N
+24 VDC is measured between
P/J1021 -1 and P/J1021 -2, 4, 6 of the
Mailbox Drive Motor
Y
N
Go to Flag 2 and Flag 3 on BSD12.5. Check the wires for an open
circuit. If the wires are good, replace the Mailbox PWB ( PL 18.11 ).
Press Stop . +5 VDC is measured between P/J1021 -3 and GND.
Y N
Go to Flag 1 and Flag 2 on BSD12.5. Check the wires for an open
circuit. If the wires are good, replace the Mailbox PWB ( PL 18.11 ).
Press Start. Less than +1 VDC is measured between P/J1021 -3 and
GND.
Y
N
Replace the Mailbox PWB ( PL 18.11 ). If the problem continues,
replace the Finisher PWB ( PL 18.4 ).
Replace the Mailbox Drive Motor ( PL 18.10 ).
Ensure that the Mailbox Drive Motor Pulley is fastened to the motor shaft.
• Check the Drive Belt Tension Roll for proper tension.
• Check the Drive Belt for Damage
• Check that the gear pulleys are properly fastened to the drive rolls
Check the following parts for wear, glazing, or slipping.
•
Mailbox Entrance Roll ( PL 18.10 )
• Pinch Rollers ( PL 18.12 )
• SCT Exit Roll ( PL 18.10 )
• Drive Belt ( PL 18.10 )
Check the Drive Belt Tension Roll for proper tension.
Enter dC330 012-115 Vertical Sensor. Manually block the Mailbox Vertical Sensor with a sheet
of paper.
The display changes from L to H to L as the paper moves in and out of the sen-
sor.
Y
N
The display is always H
Y
N
Go to Flag 21
and Flag 22 on BSD12.8. Check the harness for a short circuit to
ground. If the harness is good, replace the Mailbox Vertical Sensor ( PL 18.13 ).
The Vertical LED is on.
Y
N
+5 VDC is measured between
P/J1004 -3 and P/J1004 -1 on the Mailbox PWB.
Y N
+5 VDC is measured between
P/J1025 -3 and P/J1025 -4 on the Mailbox
PWB.
Y
N
+5 VDC is measured between
P/J1029 -3 and P/J1029 -4 on the Fin-
isher PWB
Y
N
Go to the +5 VDC wirenet and troubleshoot the wires between P/
J1029 -1 and P/J44 -22 on the Distribution PWB.
Replace the Finisher PWB ( PL 18.4 )
Replace the Mailbox PWB ( PL 18.11 ).
Go to Flag 19 and Flag 20 on BSD12.8. Check the harness for an open circuit. If the
harness is good, replace the Vertical LED ( PL 18.22 ).
Go to Flag 21 and Flag 22 on BSD12.8. Check the wire for an open circuit. If the wire is
good, replace the Mailbox Vertical Sensor ( PL 18.13 ).
With paper at the sensor, more than +4.3 VDC is measured between P/J1004 -3 and DC
Com.
Y
N
Replace the Mailbox Vertical Sensor ( PL 18.13 ).
Check the following parts for wear, glazing, or slipping.
•
Mailbox Entrance Roll ( PL 18.10 )
• Pinch Rollers ( PL 18.12 )
• SCT Exit Roll ( PL 18.10 )
A
A
B
B