LaserJet P4015n - serial number in web UI is incorrect

[cjmasse]

Hello,

We've got a few LaserJet P4015n printers on our company's network, but one of them seems to think it's serial number is the same as one of the others. The S/N on the physical printer doesn't match the S/N that shows on the web UI or on the configuration page printout. The S/N those have listed is for a completely different printer - that also happens to be on our network.

The IPv4 addresses for both printers are different, as are the MAC addresses. 

Any explanation for this case of mistaken identity? And is there any way I can correct it?

[Repairatrooper · Accepted solution]

Most likely someone swapped formatters at one point in time and the serial number was corrupted. You can use a PJL file to change the serial number to match the serial number sticker that is on the back of the physical body of the printer. 

%-12345X@PJL JOB
@PJL SET SERVICEMODE = HPBOISEID
@PJL SET SERIALNUMBER = XXXXXXXXXXX  (change this to your serial number)
@PJL SET SERVICEMODE = EXIT
@PJL EOJ
%-12345X

Create this file in notepad, save it as a PJL file and then send it to the printer. Usually I send it by FTP.

[cjmasse]

Thanks, that did the trick!