HP CP4525DN Laser CC494A#ABA manual Assembly. See Secondary transfer

Problem Sample Cause Solution

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. See
	Intermediate transfer belt (ITB)
	on page 92.

The drive gear of the ITB motor is worn or chipped.

Check each drive gear between the 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 front door several times to clean the RD sensor. If the problem persists, replace the RD sensor. See Registration density (RD) sensor assembly on page 124.

	The laser/scanner unit is	Replace the laser/scanner
	defective.	assembly. See Laser/scanner
		assembly (Y/M) on page 186 or
		Laser/scanner assembly (C/Bk)
		on page 190.
	The print cartridge is defective.	Replace the print cartridge of the
		affected color.
Toner smears appear on the	The product has residual	Remove the residual media.
media.	media.
	The fuser inlet guide is dirty.	Clean the fuser inlet guide.

The printed page contains	The product is experiencing	See the “Text or graphics are
misformed characters.	page skew.	skewed on the printed page” row in
		this table.
	The laser/scanner unit is	Replace the laser/scanner
	defective.	assembly. See Laser/scanner
		assembly (Y/M) on page 186 or
		Laser/scanner assembly (C/Bk)
		on page 190.

Text or graphics are skewed on the printed page.

The registration shutter spring	Check the spring and place it in the
is unhooked.	correct position.
The registration shutter spring	Replace the secondary transfer
is deformed.	assembly. See Secondary transfer
	assembly on page 119.

414 Chapter 3 Solve problems ENWW