Description of problem:


Version-Release number of selected component (if applicable):
hplip-1.6.10-1.fc6.4

How reproducible:
Always

Steps to Reproduce:
1. hp-check
  
Actual results:
----------------------
| INSTALLED PRINTERS |
----------------------


Photosmart_C4100_series
-----------------------
Device URI:
hal:///org/freedesktop/Hal/devices/usb_device_3f0_5711_MY65CB919404J7_if1_printer_MY65CB919404J7
Installed in HPLIP? No
PPD: /etc/cups/ppd/Photosmart_C4100_series.ppd
PPD Description: HP PhotoSmart C4100 Foomatic/hpijs (recommended)

Printer status:
printer Photosmart_C4100_series is idle.  enabled since Sun 14 Jan 2007 07:11:04
PM CST

Traceback (most recent call last):
  File "/usr/bin/hp-check", line 285, in ?
    if back_end == 'hpfax' and desc != 'HP Fax':
NameError: name 'back_end' is not defined

Expected results:
Rest of script to be run with normal clean exit.

Additional info:
Patch for /usr/share/hplip/check attached.