Lukas Beeler's IT Blog

This was a typical case of PEBKAC, but i’ve found to solution to be non-obvious enough to be blog worthy.

A customer received a new HP LaserJet Color P4005n about two months ago. Everything worked as expected, and everyone was happy. But when the customer printed some full size booklets, he noticed that the content wasn’t centered correctly, and roughly 7mm off to the left side.

I arrived at the customers site, and used a testing document – sure enough, the center was 7mm off. I couldn’t explain this to myself, so i started with the usual routine of upgrading drivers and printer firmware, which didn’t fix the issue.

I checked all the printer and page size settings, but in the end i was sure that everything was configured correctly. Then i started the printer’s web interface, and the solution became obvious immediately:

Someone has adjusted the x/y tray adjustments (see screenshot to the right) – probably to adjust for some special labels to be printed.

In hinsight, the solution is obvious, very obvious. But i’ve never encountered the symptopms before, so this stumped me for a few minutes.