LaserJet IIP (was Re: Ancient LaserJet-3 question)

Yes, the smears seem to be independent of what I print. The image is there, but covered in places by non-uniform "smears" of black. Yes, they appear on the test page (there is only one) as well. Also, the smears are fused to the paper... --tom >OK, can you describe these smears a bit more? Are the independant of what >you're trying to print (text .vs. graphics, for example). Do they occur >on the formatter test page (the one where it prints out the fonts, etc). >Do they occur on the engine test page (if you can produce one) -- the one >with vertical lines only on it? > >I'm wondering if the engine is actually alright, and the problem is >actually due to memory errors on the formatter board (or the logic that >transfers the bitmap from the memory to the laser). > >-tony > > >