I have an HP 2605dn color printer and keep getting a code 79 error message.

[dsirby27]

I recently dug my old HP 2605 out of a back room, installed new color toner cartridges and stupidly installed the firmware update.  Now my printer is continuously showing Error 79 on the display and reboots.  I searched this forum for a fix and saw that the issue I'm having is with the update I installed.  I tried removing and reinstalling the white ribbon in the back of the printer but that only allowed me to print one document, then the error returned.  I do not have any RAM installed in the back nor have I ever had additional RAM.   Is the printer done or is the previous firmware still available? 

[Repairatrooper]

Disconnect all cables other than the power cable and restart the printer. If it comes to ready and does not error out for at least ten minutes, it is more likely a driver issue on the computer and not a printer issue. You probably have a wrong or corrupted driver or bad print job that keeps being resent to the printer. You need to clear any print queues that are trying to send print jobs. If the error exists even when there are no cable connected then likely cause is a bad formatter.

[dsirby27]

I have power cycled the printer and and 'ready' is displayed in the window.  I am able to print a test page and config report from the printer without issue.  I've verified that there are no jobs in the queue and after 10 minutes, I sent a simple Word document to the printer via USB cable and got the attached error.

[Repairatrooper]

The printer is listed as supported by UPD, so you might have a corrupt driver. The following footnote is attached to the compatibility page for this printer/driver combination

This printer must first install an .msi file in order to successfully install a driver using a USB connection. Normally, this should install automatically unless Windows Update is disabled or there is no connection to the internet.

To obtain the .msi file, make sure Windows Update is enabled and then run Windows Update which will automatically install the .msi file and driver. If Windows Update is disabled, go to the hp.com, download the HP LaserJet USB (DOT4) communication driver for Windows from hp.com, load the HP PCL6 driver into the driver store, and then connect the USB cable.