Xerox PHASER 7500 - RC Sample Block Fail-B-#2-In

3-228 Phaser 7500 Printer Service Manual
Error Messages and Codes
RC Sample Block Fail-B-#2-In
During the B (rough adjustment pattern) patch detection, the #2 (Magenta) patch
at the MOB Sensor In side did not satisfy the defined number of valid sample
blocks.
Applicable Chain-Link Code
• 089-607: RC Sample Block Fail-B-#2-IN
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
Note
When multiple failures with Chain No. 089 occur, take action according to the
priority order.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Developer (M), PL5.2.8
■ IBT Belt Unit, PL6.1.10
■ Imaging Unit (M), PL8.1.4
■ MOB ADC Assy, PL18.1.4
■ MCU PWB, PL18.3.6
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Check the density of Magenta
color.
Is the density of Magenta color
normal?
Go to step 2. Adjust to
correct the
density of
Magenta color.
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?
Go to step 3. Connect the
MOB Sensor In
J150 to the
MCU PWB
J415 properly.
3 Check the Magenta color Magnet
Roll for contamination, scratches,
or distortion.
Is the Magnet Roll normal?
Go to step 4. Replace the
Developer (M)
(PL 5.2.8).