HP Linux Imaging and Printing System (ver. 3.11.10)
Scan Utility ver. 2.2

Copyright (c) 2001-9 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[2615]: debug: getDeviceUri(None, None, ['hpaio'], {'scan-type': (<built-in function gt>, 0)}, , True)
hp-scan[2615]: debug: Mode=0
hp-scan[2615]: debug: hp:/usb/Photosmart_5510_series?serial=CN17B0438L05NR: back_end:hp is_hp:True bus:usb model:Photosmart_5510_series serial:CN17B0438L05NR dev_file: host: zc: port:1
hp-scan[2615]: debug: Cache miss: photosmart_5510_series
hp-scan[2615]: debug: Reading file: /usr/share/hplip/data/models/models.dat
hp-scan[2615]: debug: Searching for section [photosmart_5510_series] in file /usr/share/hplip/data/models/models.dat
hp-scan[2615]: debug: Found section [photosmart_5510_series] in file /usr/share/hplip/data/models/models.dat
hp-scan[2615]: debug: {'hpaio:/usb/Photosmart_5510_series?serial=CN17B0438L05NR': ['Photosmart-5510-series']}
Using device: hpaio:/usb/Photosmart_5510_series?serial=CN17B0438L05NR

warning: No destinations specified. Adding 'file' destination by default.
Using device hpaio:/usb/Photosmart_5510_series?serial=CN17B0438L05NR
Opening connection to device...
hp-scan[2615]: debug: Device supported resolutions []
warning: Invalid resolution. Using closest valid resolution of 300 dpi
warning: Valid resolutions are  dpi.
Traceback (most recent call last):
  File "/usr/bin/hp-scan", line 636, in <module>
    res = valid_res[0]
IndexError: list index out of range