43Magnum

asked Nov 1, 2011 at 5:15am
Hp HP LaserJet 4

HP 4350 jam issue

hey guys, I have a strange problems with an HP 4350 laser. Actually I have a few of tese doing the same thing over the past few months.
If the customer runs a 10 page job, it prints the job and then always tries to send another single page which always jams just before the fuser. I can simulate this by running a 10 page self test or a 4 page font test. It will print the job and then you can hear it send an additional page which crumples up just before the cartridge. I have swapped fusers, replaced all rollers, swing plate gears, reset defaults etc. have tried it with the rear exit instead of the top exit. It will not do this if I feed paper through the manual tray 1. Sometimes on the next job, it will send the crumpled paper through without jamming, to clear the paper path. Other times it jams up solid. Like I said, I have more than one unit doing this and cant seem to figure it out. Anyone out there have any ideas on this?
Thanks in advance
Paper pickup solenoid located on the right side is sticking. Been covered lots of times on the forum.
by moe on Nov 1, 2011 at 8:44am Add comment
Moe,
I have the same issue with several of our 4350 printers. Some with over 100000 pages and some with less than 10000 pages. I realize this issue may have been covered in prior forums but when I did a search for this issue I got no hits.
Can you please link to one that actually provides steps for fixing the problem?
Thank you.
by SolarTech on Dec 2, 2011 at 11:20am Add comment
Remove back right side panel. Remove 2 screws holding formatter and slide it out. 2 screws in top at front and 2 in back. Lift top up and pop off the right front panel. There are a couple of release latches at the front with arrows pointing where you stick your screwdriver. Note that there is a rocking switch at the bottom that has to go back onto that metal rod. You can see the solenoid, held on by one screw. Take note of how it is mounted. Most people use electrical tape, but I prefer sticky backed felt. This is enough to do a bunch of them. http://www.fixyourownprinter.com/specials/misc/tools/S97
by moe on Dec 2, 2011 at 1:55pm Add comment
Thanks for the help. I think I have some sticky back felt around somewhere. I will try this next week and report on the result.
by SolarTech on Dec 2, 2011 at 2:03pm Add comment