3-172
Phaser 7500 Printer Service Manual
Error Messages and Codes
2
Check the following:
■
The Flat Cable between the MCU
PWB J554 and the LPH Rear PWB
(K) J558 for open circuit, short
circuit, and poor contact.
■
The Flat Cable between the LPH H
PWB (K) J566 and the LPH (K)
J574 for open circuit, short circuit,
and poor contact (connection
within the LPH Unit).
■
The connector (P/J578) between
the LPH Rear PWB (K) and the LPH
H PWB (K) for damage and debris.
■
The LPH Unit (K) for improper
installation.
■
The Drum/ Deve Drive Motor (Y,
M, C) for improper installation
(affected by the noises caused by
improper installation).
■
The NVM value for corruption.
Are they normal, without any short
circuit, poor contact, or corruption?
Replace the
following parts
in sequence:
■
LPH Unit (K)
(REP 2.1,
)
■
LPH Cable
Assembly
■
LPH Rear
PWB (REP
2.4,
)
■
MCU PWB
(REP 18.12,
)
Repair the
sections that
have short
circuits and
poor contacts,
or initialize the
NVM.
3
Check the following:
■
The connection between the
Motor Drive PWB J518 and the
LPH Rear PWB (K) J550 for open
circuit, short circuit, and poor
contact.
■
The connection between the LPH
H PWB (K) J562 and the LPH (K)
J570 for open circuit, short circuit,
and poor contact (connection
within the LPH Unit).
■
The connector (P/J578) between
the LPH Rear PWB (K) and the LPH
H PWB (K) for damage and debris.
■
The LPH Unit (K) for improper
installation.
Are they normal, without any short
circuit, poor contact, and debris?
Replace the
following parts
in sequence:
■
LPH Unit (K)
(REP 2.1,
)
■
LPH Cable
Assembly
■
LPH Rear
PWB (REP
2.4,
)
■
Motor Drive
PWB (REP
18.13,
)
■
MCU PWB
(REP 18.12,
)
Repair the
sections that
have short
circuits and
poor contacts
or, remove the
debris.
Troubleshooting Procedure (Continued)
Step
Actions and Questions
Yes
No
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: ......