unknownasked Jul 7, 2000 at 6:26pm
HP LJ IIP Making Thumping Sound and smearing print
I hope that someone here can point me in the right direction.
About a week or so ago, I noticed that my HP LJ IIP printer started making a kind of "thumping" sound whenever the motor was going and it was 'turning' (i.e., even when it did the occasional automatic startup to turn the toner).
In trying to figure out why, I noticed that the three small, gray wheels at the front of the printer appear to "hesitate" at the same time that the "thumping" sound occurs, and, actually, the sound occurs whenever just the wheels are moving (i.e., even when it's done printing).
This sound occurs whether I have the output coming out on top or from the front of the printer, and, actually, whether there's paper moving through the printer or not.
Also, the printing is now "smearing", and there're dustings a toner whenever I try to print. I suspect that this bad printing may be because of whatever's causing that thumping noise...i.e., possibly jarring the toner onto the paper?
I did some tests, running less than full-length sheets through, and it appears that this smearing is only occurring when I print more than 1/2 a page or so. Again, per the above, I think this smearing is synchronized somehow with whatever is causing the thumping sound.
Any ideas what this might be, and what might be involved in repairing it? I know that this is an old printer, but it's been quite reliable and cost-effective, and I've done some of the repairs (replaced scanner motor) on my own before, so I'd like to keep it going if at all possible.
My problem at this point is that I don't know ever where to start? Do I try disassembling the roller mechanisms on the front door (the part that flips open-down?
Thanks! Any suggestions would be greatly appreciated!