LaserJet M4345 MFP Printer: how to cold reset in HP LaserJet M4345 MFP...

this should put you on the right track

sounds like formatter is fried and needs to be replaced.

hp laserjet m1132 mfp errer E3

Upgrade the firmware.Go to http://www8.hp.com/us/en/support-drivers.htmlEnter your printer.Select your operating systemSelect the firmware and download it. Follow the instructions to the letter

You can download the HP printer drivers from their supportWEB site. Please click on this link and select your model printer to download:- http://welcome.hp.com/country/us/en/support.html

REINSTALL IS THE BEST SOLUTION.

If you need more help post back!
Thumbs and testimonial are welcome!

HI,

its is simple on the desktop click right button of the mouse and select new and then click on it

you can create your own folder.pls visit the following site

HP LaserJet MFP and All-in-One Products - HP Universal Print Driver: Bin ... and LaserJet AiO/product Products - Solve Common Macintosh problems 25 Mar 2011 ...
h20000.www2.hp.com/.../SupportTaskIndex.jsp?... - Cached - Similar HP LaserJet M4345 Multifunction Printer series - Manuals - HP ... HP LaserJet M4345 MFP - (multiple language) Getting Started Guide North ...
h20000.www2.hp.com/.../SupportTaskIndex.jsp?... - Cached - Similar

You've done everything but replace the formatter.
Can you look at the Event Log? Look for a 79.xxxx error. That is definately a formatter.
Is this a solid error, meaning does it appear when printer inits?
Remove the DIMMs and flash memory and network cable. And reinstall one by one until error reappears.
Do you have another 4345 that you can "borrow" a formatter from?

The pin for this specific machine should be 11434506.
If that doesn't work you must cold reset the machine.

Turn it off the machine.
Turn machine on hold 6 down until the memory count is done and all 3 lights are on release 6 and use 3 to arrow up to cold reset and press 6 "acts as the enter button"

FYI
3 works as arrow up
9 works as arrow down
6 works as the Enter button

Try performing a cold reset. press and hold "6" while booting and counting RAM. Release when all 3 led's are lit. Use "3" and "9" and navigate to "Cold Reset". Press 6 to enter.