Adc Patch Fail (K) - Xerox Phaser 7500 Service Manual

ADC Patch Fail (K)

Phaser 7500 Printer Service Manual
The ADC patch of K color is abnormally light.
Applicable Chain-Link Code
• 092-673: ADC Patch Fail [K]
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
Troubleshooting Reference
Applicable Parts
LPH Unit (K), PL2.1.2
■
HVPS (1st/2nd/DTS), PL6.2.9
■
Imaging Unit (K), PL8.1.4
■
HVPS (Deve/BCR), PL18.1.7
■
MCU PWB, PL18.3.6
■
Troubleshooting Procedure
Step Actions and Questions
1 Check the Fault History.
Perform the ATC Sensor test in
Diagnostics.
Has error 092-651 or 092-315
occurred?
2 Check the following:
The Imaging Unit (K) for
■
contamination
The LPH (K) for contamination
■
The 1st BTR (K) for
■
contamination
The IBT Belt for contamination
■
The connection and board
■
springs between the HVPS
(Deve/BCR) and the Magnet Roll
(K) for open circuit, short circuit,
and poor contact
The connection and board
■
springs between the HVPS (1st/
2nd/DTS) and the 1st BTR (K) for
open circuit, short circuit, and
poor contact
Are they conducting properly?
Error Messages and Codes
Wiring and Plug/Jack Map References
Yes
Go to the
appropriate
troubleshooting
procedure.
Replace the
following parts
in sequence:
Imaging Unit
■
(K) (REP 1.2,
page 8-10)
LPH Unit (K)
■
(REP 2.1,
page 8-18)
HVPS (Deve/
■
BCR) (REP
18.4,
page 8-191)
HVPS (1st/
■
2nd/DTS) (REP
6.4,
page 8-65)
MCU PWB
■
(REP 18.12,
page 8-202).
No
Go to step 2.
Repair the
sections that
have short
circuits and
poor contacts.
3-277