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Phaser 7500 Printer Service Manual
Error Messages and Codes
POB Sensor On Jam
The POB Sensor does not turn On within the specified time after the Regi Clutch
On.
Applicable Chain-Link Code
•
077-110
: POB Sensor On Jam
Initial Actions
•
Check the paper path for debris.
•
Power cycle the printer.
•
If the problem persists, follow the procedure below.
1. Check the paper transportation failure due to debris/ burrs on the paper path.
2. Check each Takeaway Roll and Pinch Roll for contamination, wear, and
rotation failure.
3. Check the Regi Roll and Pinch Roll for contamination, wear, and rotation
failure.
4. Check the 2nd BTR for contamination, wear, and rotation failure.
5. Check the IBT Belt for wound up, stuck paper.
6. Check each Takeaway Roll Drive Gear for wear and damage.
7. Check the Regi Roll Drive Gear for wear and damage.
8. Check the 2nd BTR Contact Retract Drive Gear for wear and damage.
9. Is paper used out of specification (refer to
“Paper and Tray Specifications” on
?
10. Check the POB Sensor for contamination and improper installation.
11. Perform the
Jam Sensors
test in Diagnostics.
12. The connection between the POB Sensor J180 and the Motor Drive PWB J524
for open circuit, short circuit, and poor contact.
13. Perform the
Main Motor
test in Diagnostics.
14. Perform the
2nd BTR Contact Retract Motor
test in Diagnostics.
15. Perform the
Takeaway Clutch
test in Diagnostics.
16. Perform the
Registration Clutch
test in Diagnostics.
17. If no problems are found, replace the following parts in sequence:
•
Motor Drive PWB (REP 18.13,
•
MCU PWB (REP 18.12,
)
Troubleshooting Reference
Applicable Parts
Wiring and Plug/Jack Map References
■
POB Sensor, PL14.4.16
■
MCU PWB, PL18.3.6
■
Motor Drive PWB, PL18.3.7
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: ......