An alphanumeric code, such as HP Printer 79 Service Error, indicates proper control and is also used to indicate an ink system failure error. The ink device failure error message can include an alphanumeric code, or the alphanumeric code may appear without any input at all.
In an HP Printer, 79 Service Error is essentially an ink system malfunction. Typically, this error code appears in the computer’s control panel. We’ve compiled some of the most likely causes as well as the best possible remedies for you in this post. Read them carefully and find a solution to your recurring HP printer issue.
The HP Printer 79 Service Error is a failure of the ink device error that occurs in the Printer Control panel. The error can be caused by a variety of factors, including incorrectly mounted printer cartridges, low printer cartridges, poorly vented or damaged printer cartridges, and infected virus/system data, among others.
Turn the printer power off, wait at least 30 seconds, and then turn the power on and wait for it to initialize.
If you are using a surge protector, remove it and plug the printer directly into the wall socket. Turn the printer power on.
If the message persists, disconnect any network or USB cables and power cycle. If the printer returns to Ready, check the firmware version and update if a newer version is available.
If the error is intermittent, attempt to isolate the issue to something specific in your environment. Delete all print jobs from all computers connected to the printer and send a simple test print job.
Regards,
Peter