I like my 4L, it has worked beautifully for a number of years. When it starts printing, the green lights go on (it looks like it is about to print), then a terrible grinding sound is audible. It ends up with the orange light blinking for "Paper Jam". It tries to pick up the paper, crumples it, and then stops.
You have a broken gear main motor. I had the same problem, bought $5 part and after the replacement of the gear,it runs like new
Posted on Feb 23, 2009
You may want to have a look at the illustrated instructions posted here
http://www.rheinfeld.de/andreas/laserjet...
Doesn't look complicated at all.
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The following are possible causes for paper jams in the HP LaserJet printers:
SOLUTION:
Posted on Dec 04, 2008
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Posted on Jan 02, 2017
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I, too, have this problem with my HPLaserjet 4L. The printer begins just fine, then a grinding noise, then finally the blinking printer jam light goes on. I need help to fix. Thanx. Wes
I have the same problem. Everything mosesclive wrote is good boilerplate for solving a paper jam, but those of us with the problem have already done all that.
Can someone help me cure that hideous noise? My printer is 14 years old - I like it to make 20...
The most common problem (beyond actual paper jam) that I've seen as a repair-man, is the paper-feed foot getting flipped over when someone inserts/re-loads the paper-tray. Unfortunately, it's been so long since I've fixed that issue I don't remember how to safely revert that very fragile foot to its proper orientation. Currently over at an elderly friend's house, trying to fix the very issue.
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