12-05-2006 02:53 AM
We have an HP Laserjet 4050 here in our office. Just recently, when it tries to pick up paper to print, it makes a distinct squeaking/rubbing noise, then the printer throws a 'Paper Jam error'.
When we open the tray, it seems that it tried to grab the paper (its outside the metal clasps) but it only moved 1/2" before stopping.
We checked the inside of the printer and there is no paper jammed, so i assume the issue is in fact with the paper not being properly picked up.
I came across this thread; http://forums1.itrc.hp.com/service/forums/bizsuppo
Now, I noticed that we can get the printer to print (without any errors) if we push the tray in and hold it in fairly strong while its printing.
The rollers and assembly, as mentioned in the above thread, seem to be fairly cheap, but i wasn't sure if this was the same issue or not, since ours can be temporarily fixed by pressing on the tray while printing.
Any ideas on how to get her up and running again?
Thanks in advance!
12-05-2006 03:07 AM
Just as in the other thread the tray is not specific. If it is tray 2, then the separation and "D" rollers should be replaced. They are easily checked. If they are smooth, they will cause jams (13.1, 13.2).
One other note and what makes me suspect that this is the real problem is the fact that the paper move above the lip. If you watch from the back with a flashlight, you will see the "D" rollers rotate and start to push the paper forward. The paper will then move back slightly and cause the jam. This is caused by a faulty torque limiter. For more info see the attachment.
12-05-2006 03:20 AM
I'll try and look from the back to see what is happening. I'll report back shortly.
12-05-2006 03:32 AM
I saw the paper sliding back. Removed the torque limiter and it works great now.
I noticed the instructions call for removing half the filings from the torque limiter, then reinstalling it. What exact is the filing on the limiter and how to i remove half of them?
Thanks for the help thus far, it is greatly appreciated!
12-05-2006 03:52 AM