My printer hp laserjet 4350 shows error 49,what could be the cause

?49.00ff Error ' HP P4015n Support - HelpOwl.com

https://www.helpowl.com > 4900ff-error
Nov 15, 2017 - Hi-Speed USB 2.0 connection ? HP Jetdirect full-featured embedded print server (optional for the HP LaserJet P4014 printer) with IPv4, IPv6, ...

49. XXXX printer error what does this mean?

http://www.laserprinterhelp.net > article > 49.-XXXX-pr...
Oct 10, 2013 - The error means a critical firmware error has occurred that caused the processor on the formatter to abort operation. This type of error can be ...

49 Error HP LaserJet (all models) - Printer Techs

https://www.printertechs.com > Troubleshooting
The 49 error codes on HP LaserJet printers are communication error codes. They can be hard to troubleshoot as quite a few culprits cause 49 errors.
Missing: P4014. ‎' Must include: P4014.

Hi,
I think you are since the dc controller only controls paper movement and nothing else. A 49 error is a firmware error and has many causes from applications, network and just defective formatter. If the errors occurs with the printer not connected to anything, then the formatter would be the logical issue if the firmware has been updated. Keep in mind having a jet direct card in the slot can cause the error, so the only true way to test is with everything removed with the exception of firmware, memory and power. Also keep in mind that if the 4250/4350 series power is derived from the lvps and not the dc controller. Also with this model the embedded jet direct card is known to occasionally have issues. When you upgrade the firmware for the formatter it also upgrades the firmware on the embedded nic card. Again the only true way to test would be to disable the embedded nic card on powerup.

Read more... HP Support document HP Support Center and HP Printer Support

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

my printer error 49.4c02

Hp color laserjet cm1017 mfp 49 service error showing in disply screen and restart the printer

Hewlett Packard 49.XXXX Errors

I hope this will be of assistance to you, any repairs under taken are at the owners free will.

Hello, the dreaded 49.2F9D Error Turn Power On/Off and other related 49 Errors.

This tip relates to the Hewlett Packard P3005 Series Printer - General reference to most HP Laser Printers

There have been many reports of this error in the HP genre of laser printer. This is a generic fatal error; the root cause is undetermined in most cases. It could be related to an application "corrupt data" or faulty printer firmware, or the formatter board or other associated hardware or accessory. The first step in troubleshooting this error is to isolate the printer from any computer source - disconnect from any I/O ports, Network/USB etc... Power cycle the printer. Does the error still report? If NO then an application may be causing the error, try to isolate the file causing the problem. Clear any pending print jobs. If YES then Firmware/Formatter most are the problem. A new firmware file can be found here. P3005FIRMWARE

Pay close attention to PDF files with embedded JPEG files.

Pay close attention when printing Emails or Web Pages.

In rare circumstances the fuser has been reported to cause the 49.2F9D error. (P3005 specifically)

*** Further Reference Material MoreOn49Errors ***

Contact a local HP Authorized Service Center for further assistance.

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.

General printer error. Unplug the power cord for 10 seconds.

49.XXXX PRINTER ERROR To continue turn the printer off then on Description The printing operation has been aborted. The issue can be caused by a firmware error, invalid print commands, corrupt data, invalid operations, poor quality parallel cables, poor connections or specific applications. Action

1. Press Cancel Job to clear the print job from the printer memory.
2. Turn the printer off and then on to clear the error message.
3. Try printing a job from a different software program. If the job prints, go back to the first program and try printing a different file. If the message appears only with a certain software program or print job, contact the software vendor for assistance.
4. If the above action does not solve the issue, contact HP or authorized service provider.

you might need to upgrade the firmware