HP Enterprise CP5525 manual Power-supply

Problem Sample Cause Solution

Dropouts appear.

The secondary transfer roller	Replace the secondary-transfer-
is deformed or has	roller.
deteriorated.
The primary charging roller,	Replace the print cartridge of the
developing roller, or	color that matches the defect.
photosensitive drum is
deformed or has deteriorated.

	The fuser roller is deformed or	Replace the fuser.
	has deteriorated.
	The transfer 1 high-voltage	Replace the transfer 1 high-voltage
	power-supply PCA is defective	power-supply.
	(no transfer 1 bias output).
	The transfer 2 high-voltage	Replace the transfer 2 high-voltage
	power-supply PCA is defective	power-supply.
	(no transfer 2 bias output).
The toner is not fully fused to the	The fuser roller or pressure	Replace the fuser.
paper.	roller is scarred or deformed.
	The fuser control circuit is	Replace the low-voltage power
	defective.	supply.
	The thermistor is defective.	Replace the fuser.
	The fuser heater is defective.

Some color is misregistered.

The product is incorrectly	Calibrate the product.
calibrated.
The ITB unit is defective.	If the ITB does not rotate smoothly or
	a cleaning malfunction occurs (ITB is
	dirty), replace the ITB.
The drive gear of the ITB	Check each drive gear between the
motor is worn or chipped.	ITB drive roller and the ITB motor. If
	the gear is worn or chipped,
	replace the drive unit.
The RD sensor is defective.	Open and close the right door
	several times to clean the RD sensor.
	If the problem persists, replace the
	RD sensor.
The laser/scanner unit is	Replace the laser/scanner assembly.
defective.
The print cartridge is	Replace the print cartridge of the
defective.	affected color.

528 Chapter 3 Solve problems ENWW