Rc Sample Block Fail-B-#1-In - Xerox Phaser 7500 Service Manual

Error Messages and Codes

RC Sample Block Fail-B-#1-In

Applicable Chain-Link Code
Initial Actions
3-224
During the B (rough adjustment pattern) patch detection, the #1 (Yellow) patch at
the MOB Sensor In side did not satisfy the defined number of valid sample blocks.
• 089-604: RC Sample Block Fail-B-#1-IN
• Power cycle the printer.
• If the problem persists, follow the procedure below.
Troubleshooting Reference
Applicable Parts
Developer (Y), PL5.2.9
■
IBT Belt Unit, PL6.1.10
■
Imaging Unit (Y), PL8.1.4
■
MOB ADC Assy, PL18.1.4
■
MCU PWB, PL18.3.6
■
Note
When multiple failures with Chain No. 089 occur, take action according to the
priority order.
Troubleshooting Procedure
Step Actions and Questions
1
Check the density of Yellow color.
Is the density of Yellow color
normal?
2 Check the connection between the
MOB Sensor In J150 and the MCU
PWB J415 for connector
disconnection, open circuit, short
circuit, and poor contact.
Is the connection normal?
3
Check the Yellow color Magnet Roll
for contamination, scratches, or
distortion.
Is the Magnet Roll normal?
4 Check the IBT Belt for
contamination, scratches, or
distortion.
Is the IBT Belt normal?
Wiring and Plug/Jack Map References
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Phaser 7500 Printer Service Manual
No
Adjust to
correct the
density of
Yellow color.
Connect the
MOB Sensor In
J150 to the
MCU PWB
J415 properly.
Replace the
Developer (Y)
(PL5.2.9).
Replace the
IBT
Belt Unit
(REP 6.2,
page 8-58).