HP Laserjet 4 Plus - 13 Paper Jam - with no jammed paper?

My HP Laserjet 4 Plus is showing an error 13 Paper Jam, with no paper jammed. Is there a sensor causing the problem?

Help gratefully appreciated.

Cheers
dbrindAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

GtristCommented:
It sounds like the paper isn't picking up the paper out of the paper tray. You probably need to replace the feed roller. Can you hear the roller turning?
Can you print normally from the multipurpose tray?
0
briancassinCommented:
1. There should be a switch located in the paper tray check that switch push it up down....

2. Take the toner cartridge out and reseat it

3. change the paper you are using you may have moisture in it try fresh paper


also see this document

http://www.hp.com/cposupport/printers/support_doc/bpl05572.html 
0
dbrindAuthor Commented:
Grateful for your thoughts, but made no difference.
Even when first switched on with paper in manual tray, it goes from self test to "13 PAPER JAM".

I have pulled every cover and lifted every flap etc and there is no paper caught in the any of the feeder mechanisms!

Cheers


0
briancassinCommented:
IF it is disconnected from the pc and this occurs then You have a bad switch or sensor which will need to be serviced the only other thing I could suggest is making sure the printer is plugged directly in the wall... if it is happening when connected to the pc then it is something in the pc causing the problem
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Printers and Scanners

From novice to tech pro — start learning today.