I just read entire issue of yours, if you are getting issue while resetting HP Laserjet 4350 printer then i first suggest you to go & read this blog carefully to get proper guideline or process to reset it properly by visit it:https://www.hptechnicalsupportphonenumbersusa.com/blog/hp-printer-in-error-state/
via How to Reset Printer Maintenance Message
HP LaserJet 4350 Reset the maintenance count...
HP LaserJet 4350 reset maintenance...
SOURCE: HP LaserJet 4240/4250/4350 PCL 6
I think its a virus infected....... run scanning software.. to detect virus... second you need to do is log in as a administrator then go to the printer property and delete pending print jobs...then restart your unit..
gudluck
SOURCE: HP laserjet 4350 DTN Folding corners
teflon coating on heat roller in fuser is coming apart. replace the fuser. also check to make sure the paper tray is set to the correct size. this means pull the tray out, remove all paper, look inside to make sure the arrow is pointing directly at the correct media size you are using i.e. letter or legal or whatever you are using. Good Luck! please rate this carefully.
SOURCE: Reset the usage page on a 4345mfp
The only way to reset the total page count back to zero is from the service mode. Link for service code.
http://www.printertechs.com/tech/pin-servicemenu.php
Link for user guide, menu map under contol panel will show where service mode is.
http://www2.bvu.edu/departments/businessservices/infoservices/2fix/documents/manuals/lj4345userguide.pdf
SOURCE: How do I reset the page count on a HP Laserjet
the total page count cannot be reset, if you wish to reset consumable counts replace relevant consumable. thanks
SOURCE: I have a 49.5001 service error on a HP 4350
X PRINTER ERROR
A firmware error occurred
1. Press CANCEL JOB to clear the print job from the printer memory. 2. Turn the printer off, and then turn the printer on. 3. Try printing a job from a different software application. If the job prints, go back to the first application and try printing a different file. (If the message only appears with a certain software application or print job, contact the software vendor for assistance.) 4. If the message persists with different software applications and print jobs, disconnect all cables to the printer that connect it to the network or printer. 5. Turn the printer off. 6. Remove all memory DIMMs or third-party DIMMs from the printer. (Do not remove the firmware DIMM in the lowest DIMM slot.) 7. Remove all EIO devices from the printer. 8. Turn the printer on. 9. If the error no longer exists, install each DIMM and EIO device one at a time, making sure to turn the printer off and back on as you install each device. 10. Replace a DIMM or EIO device if you determine that it causes the error. 11. Remember to reconnect all cables that connect the printer to the network or computer. 12. If the error persists, replace the firmware DIMM. 13. Replace the formatter.
This error is usually caused by a bad formatter board
The 50.3 is a fuser Temperature error. If your pages have toner
and image but are smudging or smearing you know the fuser is not heating and
needs to be replaced.
If your printer is still under warranty contact HP Customer Care
for warranty replacement of fuser part numbers: RM1-1082 for 110 volt,
RM1-1083 for 220 volt. (888) 999-4747.
If your printer is out of warranty, suggest you purchase a
maintenance kit part # CB388A HP maintenance kit for
LaserJet P4014 P4015 P4515, includes other needed high wear parts.
Excellent Illustrations:
http://www.printertechs.com/tech/mkinst/P4015/mk-p4015-2fuser.php
Maintenance Kit Contents:
Contents
1. What is
included in a LaserJet P4014 P4015 P4515 maintenance kit?
3.
Transfer
roller installation.
4.
Cassette
feed/pickup rollers.
5.
Tray 1
(manual feed) pickup rollers/feed rollers.
6.
Reset
the maintenance count.
Please rate this solution and post a
comment if you need additional assistance.
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