Xerox DocuColor 12/DCCS50, Service Manual

Page: 1067 / 1617

1/05
8a-5
DocuColor 12/DCCS50
High Capacity Feeder
Reissue
OF7-001 HCF Out of Paper RAP
The HCF Stack Height Sensor failed to change state within the specified time after the HCF
Tray started to lift.
NOTE: Prior to switching off the machine, ensure all pending jobs are saved.
Initial Actions
• Check for obstructions in the paper path.
• Ensure connector P/J841 on the HCF Control PWB is seated properly.
• Refer to BSD 7.11 and 7.12 in the following procedure.
Procedure
Enter dC330, 007-186 HCF Stack Height Sensor and press Start . Pull the HCF Tray out.
The display changed from L to H.
Y
N
Check for +5VDC between pins 1 and 3 of P/J841
on the HCF Control PWB. +5VDC is
measured between pins 1 and 3 of P/J841 .
Y N
Check for +5VDC between pins 3 and 4 of J2 HCF Control PWB.
+5VDC is mea-
sured between pins 3 and 4 of J2 .
Y N
Check for +5VDC between pins 20 and 9 of P/J44 Distribution PWB. +5VDC is
measured between pins 20 and 9 of P/J44.
Y
N
Go to Wirenet +5 VDC-1 Figure7.
Go to Flag 3 and check the connector and wiring for an open circuit.
Replace the HCF Control PWB ( PL 15.16 ).
Go to Flag 2 and Flag 4 on BSD 7.11. Check the connectors and wiring. If the connectors
and wiring are OK, then replace the Stack Height Sensor ( PL 15.12 ).
Enter dC330, 007-079 HCF Elevator Motor and press Start .
CAUTION
Do not operate the component control more than twice before resetting paper position. To
lower the paper from the feed position, pull out respective tray. If the tray is overdriven it will be
hard to pull out and may cause component damage.
Ensure that the Elevator Motor energizes. The Elevator Motor energizes and then deener-
gizes within 30 seconds.
Y
N
Check for +24VDC between pins 2 and 1 of P/J845
HCF Control PWB. +24VDC is mea-
sured between pins 1 and 2 of P/J845 on the HCF Control PWB (This measurement
must be taken within 30 seconds after closing the tray.)
Y
N
Check for +24VDC between pins 1 and 2 of J2 HCF Control PWB. +24VDC is
measured between pins 1 and 2 of J2 on the HCF Control PWB.
Y N
Check for +24VDC between pins 13 and 17 of P/J45 on the Distribution PWB.
+24VDC is measured between pins 13 and 17 of P/J45 on the Distribution
PWB.
Y
N
Go to Wirenet +24 VDC-1 Figure 29.
Go to Flag 2 on BSD 8.13. Check the connectors and wiring.
Replace the HCF Control PWB ( PL 15.16 ).
Go to Flag 1 on BSD 7.12. Check the connectors and wiring. If the connectors and wiring
are OK, then replace the HCF Elevator Motor Assembly PL 15.16 .
Check/replace the following parts in the order listed until the problem is resolved. Replace any
parts that are worn, broken, binding, or slipping:
•
Elevator Motor ( PL 15.16 )
• HCF Stack Height Sensor ( PL 15.12 )
• HCF Feeder Assembly ( PL 15.10 )
• HCF Assembly ( PL 15.1 )
• Wiring Harness
A
A
B
B