What does a calibration sheet look like?
![](https://help.getdoxie.com/content/doxieone/04_faq/scanner/05_lines/calibrationsheet/normal.jpg)
If you haven't used your calibration sheet for a while, make sure that it is free of smudges or extra markings before feeding it through the scanner. A dirty calibration sheet can result in lines, dots, or other quality issues on your scans.
![](https://help.getdoxie.com/content/doxieone/04_faq/scanner/05_lines/calibrationsheet/smudge.jpg)
![](https://help.getdoxie.com/content/doxieone/04_faq/scanner/05_lines/calibrationsheet/badscan.jpg)
If you have a dirty calibration sheet and you are having trouble cleaning it, you can order a new one here.