[sane-devel] Mustek ScanExpress 1248UB gt68xx (GT-6816) not working

[Chris Lale]

I have a new Mustek ScanExpress 1248UB USB scanner known to work in Windows98se.
I have installed it in Debian Etch (Stable) and Lenny (Testing) using Debian
packages. The same fault occurs in both systems: when an image is scanned
(scanimage --format pnm > outfile.pnm), the scanner buzzes and clicks, the
scanner head lights up but does not travel down the glass plate. The resulting
image file is non-zero size but completely blank.

This is what I have done.

I installed sane, sane-utils and libsane.

I put the firmware file SBSfw.usb from the manufacturer's CD into
/usr/share/sane/gt68xx/. (diff shows that this is an exact copy of the file
downloaded from http://www.meier-geinitz.de/sane/gt68xx-backend/)

I checked /etc/sane.d/gt68xx.conf. The section for 1248 UB looks like this:
	# Autodetect Mustek ScanExpress 1248 UB
	usb 0x055f 0x021f

# sane-find-scanner
[...]
found USB scanner (vendor=0x055f, product=0x021f [USB Scanner], chip=GT-6816) at
libusb:005:004
[...]

# scanimage -L
device `gt68xx:libusb:005:004' is a Mustek ScanExpress 1248 UB flatbed scanner

# scanimage -d test -T
scanimage: scanning image of size 157x196 pixels at 8 bits/pixel
scanimage: acquiring gray frame, 8 bits/sample
scanimage: reading one scanline, 157 bytes...   PASS
scanimage: reading one byte...          PASS
scanimage: stepped read, 2 bytes...     PASS
scanimage: stepped read, 4 bytes...     PASS
scanimage: stepped read, 8 bytes...     PASS
scanimage: stepped read, 16 bytes...    PASS
scanimage: stepped read, 32 bytes...    PASS
scanimage: stepped read, 64 bytes...    PASS
scanimage: stepped read, 128 bytes...   PASS
scanimage: stepped read, 256 bytes...   PASS
scanimage: stepped read, 255 bytes...   PASS
scanimage: stepped read, 127 bytes...   PASS
scanimage: stepped read, 63 bytes...    PASS
scanimage: stepped read, 31 bytes...    PASS
scanimage: stepped read, 15 bytes...    PASS
scanimage: stepped read, 7 bytes...     PASS
scanimage: stepped read, 3 bytes...     PASS

# scanimage -d gt68xx -T
scanimage: scanning image of size 2563x3531 pixels at 8 bits/pixel
scanimage: acquiring gray frame, 8 bits/sample
scanimage: reading one scanline, 2563 bytes...  PASS
scanimage: reading one byte...          PASS
scanimage: stepped read, 2 bytes...     PASS
scanimage: stepped read, 4 bytes...     PASS
scanimage: stepped read, 8 bytes...     PASS
scanimage: stepped read, 16 bytes...    PASS
scanimage: stepped read, 32 bytes...    PASS
scanimage: stepped read, 64 bytes...    PASS
scanimage: stepped read, 128 bytes...   PASS
scanimage: stepped read, 256 bytes...   PASS
scanimage: stepped read, 512 bytes...   PASS
scanimage: stepped read, 1024 bytes...  PASS
scanimage: stepped read, 2048 bytes...  PASS
scanimage: stepped read, 4096 bytes...  PASS
scanimage: stepped read, 4095 bytes...  PASS
scanimage: stepped read, 2047 bytes...  PASS
scanimage: stepped read, 1023 bytes...  PASS
scanimage: stepped read, 511 bytes...   PASS
scanimage: stepped read, 255 bytes...   PASS
scanimage: stepped read, 127 bytes...   PASS
scanimage: stepped read, 63 bytes...    PASS
scanimage: stepped read, 31 bytes...    PASS
scanimage: stepped read, 15 bytes...    PASS
scanimage: stepped read, 7 bytes...     PASS
scanimage: stepped read, 3 bytes...     PASS
[About 30 seconds of buzzing and clicking]

I would be grateful for any suggestions.

-- 
Chris.