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# For documentation see sane-umax_pp(5)# GLOBAL ## size (in bytes) of scan buffer (default: 2 megabyte)option buffer 2097152# the following options are local to this scanner# gain for red channel, if not given, will be automatically computed# must be between 0 and 15#option red-gain 8# gain for green channel, if not given, will be automatically computed# must be between 0 and 15#option green-gain 4# gain for blue channel, if not given, will be automatically computed# must be between 0 and 15#option blue-gain 8# offset for red channel, if not given, will default to 0# must be between 0 and 15#option red-offset 2# offset for green channel, if not given, will default to 0# must be between 0 and 15#option green-offset 1# offset for blue channel, if not given, will default to 0# must be between 0 and 15#option blue-offset 1### model number## valid values are 610, 1220, 1600 and 2000## by default, no model, we rely on autodetection# in case you have black or 'inverted' scans,# you may override detection by providing the# model number#option astra 1220# DEVICES ## specify the port your scanner is connected to.## the value 'auto' will make the backend find the correct value# by itself, it will scan ppdev, ppi device, then hardware address# 'safe-auto' will do the same but won't do direct hardware access# on linux systems, you may provide the device name of the ppdev character# device : /dev/parport0, /dev/parport1, ......## on *BSD, you may provide the device name of the ppi device: /dev/ppi0,# /dev/ppi1, ...## Possible hardware addresses are 0x378 (lp0)# 0x278 (lp2) and 0x3c8 (lp1)#port safe-auto