2-66
Phaser 7700 Color Laser Printer Service Manual
54
10-398
ERROR 54 FAN FAILURE
Enter Service Diagnostics Mode.
Run the “Fuser Fan” test.
Does the Fuser Fan operate?
Yes No
Remove the Rear Cover (RRP 1, on page 7-154), Rear Shield (RRP 9, on page 7-163)
and the Rear Shield Bracket (RRP 11, on page 7-165).
Measure the voltage between P530-1 (see figure page 2-46) on the Engine Control
Board and frame ground.
Does the voltage m24 VDC?
Yes No
Replace the Engine Control Interface Board (RRP 43, on page 7-207).
Measure the voltage between P530-4 (see figure page 2-46) on the Engine Control
Board and frame ground.
Does the voltage measure 0 VDC?
Yes No
Replace the Engine Control Interface Board (RRP 43, on page 7-207).
Measure the voltage between P530-3 (see figure page 2-46) on the Engine Control
Board and frame ground.
Does the voltage m5 VDC?
Yes No
Replace the Engine Control Board (RRP 42, on page 7-206).
If the problem persists, repair or replace the harness between Engine Control
Board and the Fuser Fan.
Replace the Fuser Fan Assembly (RRP 34, on page 7-195).
Remove the Rear Cover (RRP 1, on page 7-154), Rear Shield (RRP 9, on page 7-163) and
the Rear Shield Bracket (RRP 11, on page 7-165).
Measure the voltage between P530-5 (see figure page 2-46) on the Engine Control Board and
frame ground.
Does the voltage m24 VDC?
Yes No
Replace the Engine Control Interface Board (RRP 43, on page 7-207).
Measure the voltage between P530-8 (see figure page 2-46) on the Engine Control Board and
frame ground.
Does the voltage measure 0 VDC?
Yes No
Replace the Engine Control Interface Board (RRP 43, on page 7-207).
Measure the voltage between P530-7 (see figure page 2-46) on the Engine Control Board and
frame ground.
Does the voltage m5 VDC?
Yes No
Replace the Engine Control Board (RRP 43, on page 7-207).
If the problem persists, repair or replace the harness between Engine Control Board
and the +24 VDC LVPS Fan.
Replace the +24 VDC LVPS Fan (RRP 47, on page 7-212).
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...
Page 2: ......
Page 22: ...xx Phaser 7700 Color Laser Printer Service Manual...
Page 30: ...xxviii Phaser 7700 Color Laser Printer Service Manual...
Page 60: ...1 30 Phaser 7700 Color Laser Printer Service Manual...
Page 152: ...3 122 Phaser 7700 Color Laser Printer Service Manual...
Page 174: ...5 144 Phaser 7700 Color Laser Printer Service Manual...
Page 264: ...7 234 Phaser 7700 Color Laser Printer Service Manual...
Page 316: ...8 286 Phaser 7700 Color Laser Printer Service Manual...
Page 324: ...9 294 Phaser 7700 Color Laser Printer Service Manual...
Page 334: ......
Page 335: ...Phaser 7700 Color Laser Printer Service Manual 10 305...
Page 336: ......
Page 337: ...Phaser 7700 Color Laser Printer Service Manual 10 307 ors rear of printer...
Page 338: ......
Page 339: ...Phaser 7700 Color Laser Printer Service Manual 10 309 MPT and Left Hand Cover Assembly LH Door...
Page 340: ......
Page 341: ...Phaser 7700 Color Laser Printer Service Manual 10 311 ly Board and Lower Tray Motor Assembly...
Page 342: ......
Page 352: ...11 322 Phaser 7700 Color Laser Printer Service Manual Blank Page...
Page 404: ...12 374 Phaser 7700 Color Laser Printer Service Manual...
Page 405: ......
Page 406: ...701P28180...