2-60
Phaser 7700 Color Laser Printer Service Manual
40
10-348
ERROR 40 FUSER MAIN LAMP FAILURE
Note
If this failure reoccurs three times successively, an Engine NVRAM
value is set preventing further printer use until the Clear Tech Rep
Fault, Clear <10-348 & 10-350> is run.
Switch printer power OFF.
Remove the Fuser Assembly.
Warning
Fuser may be very hot. Use extreme caution to prevent burns.
Measure the resistance between the Fuser Assembly connector P600-4 (see figure page
2-47) and P600-6 (see figure page 2-47).
Does the resistance measure between 20K and 100K ohms?
Yes No
Replace the Fuser Assembly.
Reinstall Fuser.
Remove the Rear Cover (RRP 1, on page 7-154), Rear Shield (RRP 9, on page 7-163) and
the Rear Shield Bracket
(RRP 10, on page 7-164).
Measure the resistance between P404A-1 (see figure page 2-46) and P404A-2 (see figure
page 2-46) on the Engine Control Board.
Does the resistance measure between 20K and 100K ohms?
Yes No
Repair or replace the wiring harness between the Engine Control Board and the Fuser.
Replace the Engine Control Board (RRP 42, on page 7-206).
41
10-349
ERROR 41 FUSER STS (FRONT) FAILURE
Warning
Fuser may be very hot. Use extreme caution to prevent burns.
Measure the resistance between the Fuser Assembly connector P600-4 (see figure page
2-47) and P600-6 (see figure page 2-47).
Does the resistance measure between 20K and 100K ohms?
Yes No
Replace the Fuser Assembly.
Reinstall Fuser.
Remove the Rear Cover(RRP 1, on page 7-154), Rear Shield (RRP 9, on page 7-163) and the
Rear Shield Bracket (RRP 10, on page 7-164).
Measure the resistance between P404A-1 (see figure page 2-46) and P404A-2 (see figure
page 2-46) on the Engine Control Board.
Does the resistance measure between 20K and 100K ohms?
Yes No
Repair or replace the wiring harness between the Engine Control Board and the Fuser.
Replace the Engine Control Board (RRP 42, on page 7-206).
Error
Code
Chain /
Link
Front Panel Message
Summary of Contents for 7700DX - Phaser Color Laser Printer
Page 1: ...Service Manual Phaser 7700 701P28180 Color Laser Printer...
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Page 337: ...Phaser 7700 Color Laser Printer Service Manual 10 307 ors rear of printer...
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Page 339: ...Phaser 7700 Color Laser Printer Service Manual 10 309 MPT and Left Hand Cover Assembly LH Door...
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Page 341: ...Phaser 7700 Color Laser Printer Service Manual 10 311 ly Board and Lower Tray Motor Assembly...
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