Laser printers develope a physical problem either of obstruction of laser or the fuser has a torn segment, thus not fusing that area. I don't know if on your model printer, remove the toner cart and use the 'green wiper' that can be swiped across the surface to remove possible blocks or paper . It should be obivous as a green handle on the toner cart or mechanism(check manual). Also, check to see if no paper is found in the paper path anywhere along it entire legth. The last part is the fuser, open the rear door or whatever it takes and inspect the fuser, it should be either a black or pinkish surface, it should all be uniform and no missing or torn areas. The toner cart itself should be shaken 'side-to-side' in a firm but gentle manner to free stuck toner. Return all together, now do a test page, and check results. if the problem seems to move, you got a blockage or obstruction, find it. If the fuser is bad, replace. If the toner is bad, replace. These are mu guesses on the h/w side.
On the s/w side, be sure you review under the printer page setting what the margins are set at. Just because one printer works and another differs that suggests the setting are different for each as a "default" is being used, so don't take anything for granted, check it. You can use the Ctrl+P cmd.(review margins before any printing is done) to review such setting plus whatever the printer's own options are from the likes of HP. i suggest you use MS own test pages(under properties) and not any pgm. like Word or such at least during this testing.
I've had an HP LaserJet 1022 for a little over a year and has been producing excellent results, but about two months ago it began printing everything offset 1/8" to the top and right. To test this, I opened a page in Pagemaker with 1/2" margins, drew a black line around the margins forming a box, did a print, and confirmed the offset. I've reloaded the drivers, downloaded the most current driver from HP, but no help. My other printer, a Canon i960, prints the same pages perfectly centered.
I've been in contact with HP assistance and they had me do some tests to rule out software and hardware concerns, but nothing has helped. One thing they had me do that may shine some light on the problem is what they call a "half self-test", where I do a test print from the printer's panel and as soon as the leading edge of the paper appears in the output area, I lift up the toner cartridge cover and remove the toner cartridge. This was to make sure the process is working correctly by seeing a dark, clear image on the drum...which I did. I also did this test using the box page in Pagemaker 6.5, and noticed the vertical page lines on the drum were perfectly aligned with the two little square notches located near each end of the leading edge of the toner cartridge that extends over the drum. If these are alignment guide notches, I'm assuming the image is centered as it should be on the drum. ?? If that's the case, then why is it coming out offset on the paper? BTW, it doesn't matter what program I use to print the pages...Pagemaker 6.5, InDesign CS2, Word, etc.
The only thing I've changed in my system is the installation of Service Pack 2 about two months ago.
I'm using Win XP Pro and do the majority of my printing from Pagemaker 6.5 and InDesign CS2. As I said, my other printer prints everything perfectly centered.