HP 3150 Blank pages are, Always printing Installed, Print is misaligned on the page skewed pages

Problem Cause Solution

Blank pages print	Page length and margins are not set
occasionally.	correctly for the paper size.

If you are printing on small paper and your page is blank, try printing on larger paper to see where the image is printing. Adjust the margins accordingly.

Your HP LaserJet 3100/3150 product is feeding two or more sheets of paper at a time because the paper is difficult to separate.

Your software application is sending an extra page-eject command.

Remove the paper from the paper input bin and align the edges of the paper. “Break” the ream of paper by curving it into an upside-down u-shape. Try turning the paper around to feed the other end first, or use a different type of paper.

Clean the pickup roller and the separation pad. If the problem persists, replace the separation pad.

Check your software’s printing configuration information. If you are using a word-processing program, check for a natural page break and a forced page break that are close to each other.

Blank pages are	The toner cartridge was improperly
always printing	installed.

The toner cartridge is completely out of toner.

Discontinuities exist in the high-voltage contact points.

There is a problem in a part of the product.

Make sure you removed the entire length of the sealing tape from the toner cartridge before you installed it.

Replace the toner cartridge.

Perform the “High-voltage power supply check,” which is discussed later in this chapter.

Print a self-test page. If the page is blank, follow the steps in “Basic troubleshooting” to isolate the problem. Replace the laser/ scanner or the ECU as needed.

Print is misaligned on the page (skewed pages).

The paper input bin is overfilled.

The guides are adjusted improperly.

Remove some of the paper.

Be sure to center the paper with the paper guides. Also, verify that the paper guides are not adjusted too tightly or too loosely against the paper.

The paper’s weight or surface finish does not meet HP’s specifications.

Make sure that the media meets specifications detailed in HP’s media specifications guide.

EN Image formation troubleshooting 163