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- LaserJet Printing
- Re: M476 Serial number reset

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05-28-2016 05:40 PM
So I have an HP MFP M476 at work that someone reset the NVRAM on and it changed the serial number to all X characters. I need to reset it back to the original serial number so that our contract service provider doesn't drop the printer from the contract.
I saw a few different things online using various PJL command lines but didn't have much luck with them. Is there a standard way to change it?
Thanks,
Mitch
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Accepted Solutions
05-28-2016 07:54 PM
The only way I know is with a pjl file being sent to the printer using a command prompt. To do this you have to have the printer shared and know your computer name. You would then use the command at a dos prompt of:
Netuse lpt3: \\computername\sharename
You substitute the name of your computer and the sharename you have given the printer. If you get the command loaded successfully then you would copy the file to lpt3.
Attached is a file called serial.doc Edit the file using the DOS editor to substitue your correct serial number.
You then would type at the command prompt: copy serial.doc lpt3 and hit the enter key.
To be honest not sure if this work with later printer likes yours. It worked on all previous legacy printers. Keep in mind there is a label on your printer with the serial number which you should be able to provide to your contract company to prove the printer is what it is.
05-28-2016 07:54 PM
The only way I know is with a pjl file being sent to the printer using a command prompt. To do this you have to have the printer shared and know your computer name. You would then use the command at a dos prompt of:
Netuse lpt3: \\computername\sharename
You substitute the name of your computer and the sharename you have given the printer. If you get the command loaded successfully then you would copy the file to lpt3.
Attached is a file called serial.doc Edit the file using the DOS editor to substitue your correct serial number.
You then would type at the command prompt: copy serial.doc lpt3 and hit the enter key.
To be honest not sure if this work with later printer likes yours. It worked on all previous legacy printers. Keep in mind there is a label on your printer with the serial number which you should be able to provide to your contract company to prove the printer is what it is.