Printer error 0x0000007a - HP Officejet 4315 All-in-One Printer

This error code is usually an issue with the print spooler service of the Windows OS on your PC. I would advise running the Microsoft Fixit tool

reset your print spooler
Start -> Services -> (scroll down to print spooler) -> Stop, then restart.

It can be a few things but usually the atapi.sys file is corrupt. If you can boot into your desktop, open the "run" box and type in "cmd". In that box type: sfc /scannow and press enter. There is a space between sfc and /scannow. You will be asked to put your Windows CD in the CD drive.
When did this problem begin? Have you installed a new harddrive recently? Have you installed new memory recently? Remove and re-insert the hardrive cables. Remove and re-insert the memory. Be careful about electro-static discharge. Sometimes just doing that will fix a bad connection.
Sometimes this error is caused by bad memory. You can download Memtest86 here: http://www.memtest.org/ Grab the prebuilt ISO.zip After downloading the file right click it and select "extract all" Use Img Burn http://www.imgburn.com/index.php?act=download to write the ISO to a CD. Keep the CD in the drive and reboot.
Also, there could be a problem with the hardrive. if you know the harddrive manufacturer you can usually go to their website and download their hardrive diagnostic software.
Sometimes erasing the hardrive (absolute last resort) will solve these kind of errors. Just be aware that you will lose ALL of your data and it mat not solve the problem. Darik's Boot and Nuke works good for that: http://www.dban.org/

See the following Microsoft explanation of stop code 0x0000007A which suggests that this could be caused by a number of things including a virus, bad memory, hard drive etc.

Hi

Please clean all your %TEMP% files and run as administrator

and use the below software to clean your problem

www.reggenie.com


Thank you

Harsha

If you have a windows installation software, insert it in your diskdrive and choose repair.

I believe your suspicion of driver/Win7 problem is right on target. Many manufacturers have not created / updated hardware drivers to work under the new Windows 7 environment - which is much more security focused than past versions have been.

If the driver you downloaded from HP has not been tested and certified to work under Windows 7, then you have a slim chance of getting the printer to work correctly, if at all. If the driver has been tested and certified by HP, then I would file a trouble ticket with them, describing the problems exactly. You may have discovered a bug in their driver that they could not / did not test for.

Google HP error message 0x0000007a and see what feeds back. I get the best answers that way

Fiend your solution direct from hp. Here is your solution...


http://www.hp.com/printer/prob676ijt65/solution

a4

Then it's a F**k **** old thingy!!!

go buy a new one!!

i promise it's worth it than sacrificing for that old one!!!