20 Most Recent HP LaserJet 4350 Printer - Page 2 Questions & Answers

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

Paper not being picked up, does it have a 3rd tray, take all paper out of tray 2 and see if you can get paper to feed from 3. Also make sure the lever on the cassette tray is in the normal position and check the menu in the settings. Some times the front registration area above the cassettes goes bad, not very common but does happen...place som toner on the wheels in tray two and try to print, see if the toner rubs onto the paper, if it does means wheels are turning, if not wheels are not turning....

Check and remove the HDD and try it for a while. Replace the jet direct card and try (if you have one installed) and try. Update the firmware. If that fails then someone is sending a corrupt file\print job to the printer.

Replace toner cartridge and see if clears. If no change, order a fuser assembly and replace, its fairly easy.

I would pull out the paper tray, and clean the underside roller. First try to clean it without moving the clips. Use a cotton cloth or lint free cloth and alcohol. Get as much paper dust off as you can. This might help you out.

Go to hp webite and download resent firmware and that should fix it. Just for kicks, change the toner cartridge out. I saw one causing 49 errors because the gears were locked up, causing gears no to turn. Good luck

I have seen many diferent 41.3 errors. Start by making sure tray is set to standard instead of custom and reset machine to factory settings. Next change out the roller assembly behind the tray 1. It has the selonoid on it. I have seen that cause it before. I would just replace the entire tray 1 to solve the no lift. good luck

There may be a problem with the print driver. Try deleting the printer from your computer and then re-adding it. Print driver can be downloaded at www.hp.com. in case you have lost your installation CD. Good luck !

Engine board may be. have you try different engine board?