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- HP Community
- Printers
- LaserJet Printing
- code error

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02-15-2020 10:11 PM
Hello,
In order to resolve this issue, please follow the following procedure:
1. Uninstall printing software:
- Unplug the USB cable at the back of the printer, if necessary.
- On the keyboard, simultaneously tap the Windows flag and the R key. The Run window opens.
- Type appwiz.cpl, then OK. The Programs and Features window opens.
- Click the right mouse button on HP Color LaserJet Pro MFP M478-M479 series Basic Software, then Uninstall and Yes.
Note: If the software uninstall process does not start or an error displays while uninstalling, download Fix problems that block programs from being installed or removed from the Microsoft website, and then try uninstalling again.
- Follow the instructions on the screen to complete the uninstall of the printer.
- Restart the computer.
2. Launch the registry editor:
- On the keyboard, simultaneously tap the Windows flag and the R key. The Run window opens.
- Type regedit, then OK. The registry editor opens.
- Develop HKEY_LOCAL_MACHINE, then SOFTWARE, click with the right mouse button on Hewlett-Packard and Delete. (If the PC is HP-branded, develop Hewlett-Packard and remove Digital Imaging)
3. Delete the HP Color LaserJet Pro MFP M478-M479 series folder in the way:
- C: \Program Files\HP
- C:\Program Files (x86)\HP
4. Rename folder 3 in 3_old in the path below (a restart may be required):
- C:\Windows\System32\spool\drivers\x64.
- C:\Windows\System32\spool\drivers\W32X86.
NOTE: If the file refuses this action do as follows:
- On the keyboard, tap the Windows and X keys simultaneously.
- Click on Windows PowerShell (Admin) or Command Prompt (Admin), and then Yes.
- Type net stop spooler, then press Enter.
- Rename the file.
- Type net start spooler, then tap Enter.
5. Launch a new the printer installation with the HP Color LaserJet Pro MFP M478-M479 Printer Full Software Solution.
6. Try to print.
- Turn the printer on, if it is not already on.
- Wait until the printer is idle and silent before you continue.
- With the printer turned on, disconnect the power cord from the rear of the printer.
- Unplug the power cord from the wall outlet.
- Wait at least 60 seconds.
- Plug the power cord back into the wall outlet.
NOTE:
HP recommends connecting the printer power cord directly to the wall outlet. - Reconnect the power cord to the rear of the printer.
- Turn on the printer, if it does not automatically turn on.
- Wait until the printer is idle and silent before you proceed.
- Try to print.
Do not hesitate to contact us in case of need.
Bets regards,🤠