Question about HP LaserJet M4345 MultiFunction Printer

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Incorrect Pin Error message coming on HP LaserJet M4345 MFP printer..

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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

Posted on Oct 15, 2010

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Posted on Jan 02, 2017

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49.XXXXX ERROR To continue turn off then on

A critical firmware error has occurred.
This type of error can be caused by invalid
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In some instances, electrical noise in the
cable can corrupt data during transmission
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Follow this:

1 Turn the MFP off, and then turn the MFP on.
2 Upgrade the firmware.
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7 Remove all of the EIO devices.
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10 Replace the component that caused the error message.
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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

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Model HP LaserJet M4345 MFP The printer displays


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


walid_sayed@hotmail.com
To perform a cold reset
1 Turn the MFP off and then on.
2 When the memory count appears on the control-panel display, press and hold 6 until all three
LEDs flash once and then stay on. This might take up to 20 seconds.
3 Press 3 four times until COLD RESET appears on the control-panel display.
4 Press 6 one time. The MFP continues its initialization sequence.

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