scanimage -A output

[matt@localhost sane.d]$ sudo su -c "SANE_DEBUG_PIXMA=11 scanimage -A"
[sanei_debug] Setting debug level of pixma to 11.
[pixma] pixma is compiled with pthread support.
[pixma] pixma version 0.17.23
[pixma] pixma_collect_devices() found Canon PIXMA MG8100 at libusb:002:005
[pixma] Scanner model found: Name MG8100(Canon PIXMA MG8100) matches MG8100 series
[pixma] pixma_collect_devices() found Canon PIXMA MG8100 at bjnp://192.168.1.49:8612
[pixma] pixma_find_scanners() found 2 devices
[pixma] pixma_collect_devices() found Canon PIXMA MG8100 at libusb:002:005
[pixma] Scanner model found: Name MG8100(Canon PIXMA MG8100) matches MG8100 series
[pixma] pixma_collect_devices() found Canon PIXMA MG8100 at bjnp://192.168.1.49:8612
[pixma] pixma_open(): Canon PIXMA MG8100

All options specific to device `pixma:MG8100_192.168.1.49':
  Scan mode:
    --resolution auto||75|150|300|600|1200|2400|4800dpi [75]
        Sets the resolution of the scanned image.
    --mode auto|Color|Gray|Lineart [Color]
        Selects the scan mode (e.g., lineart, monochrome, or color).
    --source Flatbed|Transparency Unit [Flatbed]
        Selects the scan source (such as a document-feeder). Set source before
        mode and resolution. Resets mode and resolution to auto values.
    --button-controlled[=(yes|no)] [no]
        When enabled, scan process will not start immediately. To proceed,
        press "SCAN" button (for MP150) or "COLOR" button (for other models).
        To cancel, press "GRAY" button.
  Gamma:
    --custom-gamma[=(auto|yes|no)] [yes]
        Determines whether a builtin or a custom gamma-table should be used.
    --gamma-table auto|0..255,...
        Gamma-correction table.  In color mode this option equally affects the
        red, green, and blue channels simultaneously (i.e., it is an intensity
        gamma table).
    --gamma auto|0.299988..5 [2.2]
        Changes intensity of midtones
  Geometry:
    -l auto|0..216.069mm [0]
        Top-left x position of scan area.
    -t auto|0..297.011mm [0]
        Top-left y position of scan area.
    -x auto|0..216.069mm [216.069]
        Width of scan-area.
    -y auto|0..297.011mm [297.011]
        Height of scan-area.
  Buttons:
    --button-update
        Update button state
    --button-1 <int> [0] [read-only]
        Button 1
    --button-2 <int> [0] [read-only]
        Button 2
    --original <int> [0] [read-only]
        Type of original to scan
    --target <int> [0] [read-only]
        Target operation type
    --scan-resolution <int> [0] [read-only]
        Scan resolution
  Extras:
    --threshold auto|0..100% (in steps of 1) [inactive]
        Select minimum-brightness to get a white point
    --threshold-curve auto|0..127 (in steps of 1) [inactive]
        Dynamic threshold curve, from light to dark, normally 50-65

[pixma] pixma_close(): Canon PIXMA MG8100