Observations ¶
- Auto Deskew implies Auto Document Size
- Skip Blank Page implies Auto Document Size
- Auto Document Size can be too agressive, cutting off part of the document.
So far we’ve noticed this on the Finanzamt Zahlschein, which is printed right to the edge of the page.
- sane_read returns Invalid argument if all pages have been removed by SkipBlankPage
- setting –resolution >= 300 segfaults, at least when -x > 215.48
- interestingly, this crashes in scanimage but not xsane
- the scanner detects the end of the document with a sensor.
when we tested with a piece of paper with a cutout, the sensitivity of the sensor varied, truncating our document at different lengths.
- documents are never pulled in perfectly straight