Scanner Testing

Scanner testing is done at the scanner testing station in printerland. This is the long table crossing the middle of printerland.

The test computer set up there has both standard and development scanner backends.

Right now we are only testing the USB scanners.

Select a scanner
Locate a suitable power supply
- - Most scanners use a 12V 1.25A positive center power supply, but there are many exceptions.
Plug into the USB port of the computer and power up the scanner
Start xsane
If xsane does not find any devices, wait a minute and try again (sometimes the scanner needs to warm up first)
If xsane does find a device, it will open a preview pane. Put in an image to scan.
Preview and then scan the image.
Look for color variations, wavy lines, empty scan lines.

If the scanner fails at any point, record the number and put the scanner in the CBM bin

The following are preliminary notes

a scsi card is now installed which will work with scanners
use "scsiadd -s" to look for the scanner
use "scsiadd -a <id>" to add the device
there is probably a way of deleting devices no longer being used
check for the device being used (e.g. /dev/sg0)
make sure the device is usable by members of the scsi group
- "chgrp scanner <device>"
- "chmod 660 <device>"
- this has already been done for /dev/sg0
run xsane and follow similar criteria to USB

These are not being tested at the moment

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