Comment 2 for bug 1015319

I can confirm I have the same problem with a Photosmart C309a, which worked flawlessly under 3.12.4, but now fails with 3.12.6 giving the following error:

Failed to open device `hpaio:/usb/Photosmart_C309a_series?serial=<redacted>': End of file reached.

As requested, the outputs of those two commands are attached (hp-check -t as file hp-check.log and hp-scan -g below).

[rob@hydrogen ~]$ hp-scan -g

HP Linux Imaging and Printing System (ver. 3.12.6)
Scan Utility ver. 2.2

Copyright (c) 2001-14 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

hp-scan[2622]: debug: getDeviceUri(None, None, ['hpaio'], {'scan-type': (<built-in function gt>, 0)}, , True)
hp-scan[2622]: debug: Mode=0
hp-scan[2622]: debug: hp:/usb/Photosmart_C309a_series?serial=<redacted>: back_end:hp is_hp:True bus:usb model:Photosmart_C309a_series serial:<redacted> dev_file: host: zc: port:1
hp-scan[2622]: debug: Cache miss: photosmart_c309a_series
hp-scan[2622]: debug: Reading file: /usr/share/hplip/data/models/models.dat
hp-scan[2622]: debug: Searching for section [photosmart_c309a_series] in file /usr/share/hplip/data/models/models.dat
hp-scan[2622]: debug: Found section [photosmart_c309a_series] in file /usr/share/hplip/data/models/models.dat
hp-scan[2622]: debug: hpfax:/usb/Photosmart_C309a_series?serial=<redacted>: back_end:hpfax is_hp:True bus:usb model:Photosmart_C309a_series serial:<redacted> dev_file: host: zc: port:1
hp-scan[2622]: debug: {'hpaio:/usb/Photosmart_C309a_series?serial=<redacted>': ['Photosmart_C309a']}
Using device: hpaio:/usb/Photosmart_C309a_series?serial=<redacted>

warning: No destinations specified. Adding 'file' destination by default.
Using device hpaio:/usb/Photosmart_C309a_series?serial=<redacted>
Opening connection to device...
error: SANE: End of file reached (code=5)