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Phaser 7700 Color Laser Printer Service Manual
2-59
33
09-350
ERROR 33 UNEXPECTED Accumulator Belt HOME SEN-
SOR SIGNAL
Remove the Accumulator Belt Assembly (RRP 35, on page 7-196).
Inspect the connector for damage.
Is the connector in good condition?
Yes No
Replace the Accumulator Belt Assembly (RRP 35, on page 7-196).
Inspect the mating connector inside the printer for corresponding damage. Repair or
replace the harness between the Accumulator Belt and connector J605.
Reinstall the Accumulator Belt Assembly.
Switch printer power ON.
Remove the Rear Cover (RRP 1, on page 7-154).
Remove the Rear Shield (RRP 9, on page 7-163).
Measure the voltage between the Engine Control Interface Board P533A-6(+)
(see figure page 2-46) and frame ground.
Does the voltage measure b1 VDC and 3 VDC?
Yes No
Measure the voltage between the Engine Control Interface Board P533A-7(+)
(see figure page 2-46) 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, replace the Engine Control Interface Board
(RRP 43, on page 7-207).
Measure the voltage between the Engine Control Interface Board P533A-5(+)
(see figure page 2-46)and frame ground.
Does the voltage measure 0 VDC?
Yes No
Replace the Engine Control Board (RRP 42, on page 7-206).
If the problem persists, replace the Engine Control Interface Board
(RRP 43, on page 7-207).
Replace the Accumulator Belt Assembly (RRP 35, on page 7-196).
If the problem persists, repair or replace the wiring harness between the Engine Interface
Board and the Accumulator Belt Assembly.
If the problem persists, replace the Engine Control Board (RRP 42, on page 7-206).
If the problem persists, replace the Engine Control Interface Board (RRP 43, on page 7-207).
34
09-351
ERROR 34 Accumulator Belt DRIVE LOGIC FAILURE
Replace the Accumulator Belt Drive Assembly (RRP 35, on page 7-196).
If the problem persists, replace the Engine Control Board (RRP 42, on page 7-206)
Error
Code
Chain /
Link
Front Panel Message
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