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Phaser 7500 Printer Service Manual
Error Messages and Codes
RC Sample Block Fail-B-#4-In
During the B (rough adjustment pattern) patch detection, the #4 (Black) patch at
the MOB Sensor In side did not satisfy the defined number of valid sample blocks.
Applicable Chain-Link Code
•
089-613
: RC Sample Block Fail-B-#4-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 (K), PL5.2.6
■
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 Black.
Is the density of Black normal?
Go to step 2.
Adjust to
correct the
density of
Black.
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 Black Magnet Roll for
contamination, scratches, or
distortion.
Is the Magnet Roll normal?
Go to step 4.
Replace the
Developer (K)
(PL5.2.7).
4
Check the IBT Belt for
contamination, scratches, or
distortion.
Is the IBT Belt normal?
Go to step 5.
Replace the
IBT Belt Unit
(REP 6.2,
).
Summary of Contents for PHASER 7500
Page 1: ...Phaser 7500 Color Printer Phaser 7500 Service Manual Xerox Internal Use Only ...
Page 2: ......
Page 60: ...1 30 Phaser 7500 Printer Service Manual General Information ...
Page 448: ...3 310 Phaser 7500 Printer Service Manual Error Messages and Codes ...
Page 484: ...4 36 Phaser 7500 Printer Service Manual General Troubleshooting ...
Page 544: ...5 60 Phaser 7500 Printer Service Manual Print Quality Troubleshooting ...
Page 545: ...6 Chapter Adjustments and Calibrations In this chapter Adjustments Calibrations ...
Page 554: ...6 10 Phaser 7500 Printer Service Manual Adjustments and Calibrations ...
Page 562: ...7 8 Phaser 7500 Printer Service Manual Cleaning and Maintenance ...
Page 900: ...9 118 Phaser 7500 Printer Service Manual Parts List ...
Page 958: ...10 58 Phaser 7500 Printer Service Manual Plug Jack and Wiring Diagrams ...
Page 980: ...11 22 Phaser 7500 Printer Service Manual Reference ...
Page 990: ...I 10 Phaser 7500 Printer Service Manual Index ...
Page 991: ......