20 Most Recent HP LaserJet 4350 Printer Questions & Answers

my printer error 49.4c02

HP LaserJet 4350... | Answered on Mar 28, 2020

Normally it is fro corrupt data or bad cables.

49.xxxx error explain.

A critical firmware error has occurred that
caused the processor on the formatter to
abort the operation.
This type of error can be caused by invalid
print commands, corrupt data, or invalid
In some instances, electrical noise in the
cable can corrupt data during transmission
to the printer. Other causes include poorquality
parallel cables, poor connections, or
specific software programs.
Sometimes, the formatter itself is at fault,
which is usually indicated by a 79 Service error

HP LaserJet 4350... | Answered on May 25, 2016

Sounds like an issue with the feed rollers. The roller on the left side might be hung up and is causing the corner to fold over when the paper is pulled through. I would try checking the feed rollers in either the actual tray or the back of the printer. Another thing to check is the other tray (the manual one). Does the paper fold? this should help you narrow down where the problem lies.

HP LaserJet 4350... | Answered on May 05, 2015

Remove the right side cover, top cover, remove the formatter board and you will see the controller board. Don't have to label the wires, each one goes into its own connector.

HP LaserJet 4350... | Answered on Jan 31, 2015

Try replacing the cartridge first and then the fuser

HP LaserJet 4350... | Answered on Jan 31, 2015

Typical of this machine. You have worn out feed rollers in tray 2. There are three of them, two in the top of the machine after removing the tray and one in the tray itself

HP LaserJet 4350... | Answered on Jan 31, 2015

Perhaps just a bit of dust or a scrap or paper is fooling around in or close by the sensor. That is one of the reasons maintenance always use a vacuum cleaner.

HP LaserJet 4350... | Answered on Jan 15, 2015

1st thing to do is upgrade the firmware. Go to hp.com and look for the software and drivers. Drill down to the firmware and read the instructions.

HP LaserJet 4350... | Answered on Dec 03, 2014

50.4 is a problem with the fuser, likely a bad heating element.

HP LaserJet 4350... | Answered on Sep 10, 2014

you'll need to file the actual print "button" if you print "screen" this will happen all the time

HP LaserJet 4350... | Answered on Jul 11, 2014

are you using the manual feed tray? If not try that as a solution.

HP LaserJet 4350... | Answered on Apr 15, 2014

I was able to fix it by taking off the top of the printer. This involved taking off 4 screws on the top of the printer. I then had to disconnect the wires going to the control panel by unhooking them from the right side. I then located a thin rectangular box which I'm assuming houses the laser. I removed this with 4 more screws and turned it over. There was a little metal flap that I moved back and below was the mirror the lasers shoot on before going onto the toner.

In the same spot where I was having fading, I noticed a lot of toner on the mirror, so I cleaned it of, put it back together, and the fading was gone.

This was after I tried a new toner and maintenance kit.

Hope this helps

HP LaserJet 4350... | Answered on Dec 06, 2013

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