Stumped with HP Driver-NAPS2 incompatibility
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I've been stumped now for several months, and not been able to run NAPS2. Several other apps seem to scan OK, the last one this morning HP Scan and Capture. I have a screen shot of the error. The error window message reads: "HP Scanning - The HP imaging device may be incorrectly installed. Try the following steps. ...". Needless to say I 've tried all it suggests for months. Only NASP2 is affected, but three other scan apps work correctly. I run Windows 10, 64 bit; NASP2 is 5.8.2.37233
Last edit: Giovanni Ciriani 2018-07-11
Assuming you're using the TWAIN driver, under Advanced in your profile settings, try different TWAIN implementation options.
Thanks for the suggestion. I just tried all other implementation options; the type of error changes, or there is no action at all.
Last edit: Giovanni Ciriani 2018-07-14
Have you tried using WIA instead of TWAIN?
If I try to set up a profile HP-WIA my driver doesn't show up in the window Profile Settings > Choose device.
One very "blondish" thing to try: When launching NAPS2, select "Run as Admin". Of course it's not the real solution, but might be worth trying.