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.
The HP 79 service error on your printer completely disrupts your flow but there's no reason to panic.
If you get the 79 service error to turn off the printer, then on. It's a basic solution that you can try first.
This problem may be caused by a problem with the DIMM so you should check it.
You can also check the drivers and make sure they are the latest for your printer.
Hope This Helps,
Peter