As a result of some problems where my Macs kept saying "cannot connect to" my printer, I had reset the printing system and re-installed the driver several times.
I now have a situation where printing works OK, but the SCAN option in the "printers and scanners" screen for my HP Officejet Pro 8500a Plus no longer shows a SCAN button -- there are no scanning options at all.
I had posted an Apple update for HP printers (version 3.1) and this didn't help. Then, following directions from APple or HP (I forget which now) I downloaded and installed a driver file called hpprinterdriver3.1.dmg. Got the same result. I even tried installing the Mavericks driver file (which used to work when I had Mavericks) but same result.
I've been through every troubleshooting conversation on HP's site and tried everything and cannot get scanning back.
* When re-installing the driver, I can no longer pick the printer out of a list, but have to use the IP option and type in its IP address before the system will see it and, when it is installed, it is named for the IP (eg 192.168.6.3) rather than for the printer name, although it shows the printer name in the "kind" field of the printers and scanners dialogue.
* I also tried the options of scanning with HP Easy Scan and Apple Image Capture, but neither app can see the scanner, so these don't work either.
Hi and thanks for the suggestion. I DID install the most recent Apple Update for HP printers (3.1) and I couldn't scan after doing that either. The other attempts to install drivers have happened since that time. I would try re-installing the Apple driver update but don't see any way to do so -- Apple doesn't seem to provide a way to back out an update and re-apply it, something that Windows does pretty well.
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