# The scan showed double image

**URL:** <https://forum.cloudray.com/t/the-scan-showed-double-image/146>\
**Category:** FAQ\
**Created:** [March 29, 2021, 8:12am UTC](https://forum.cloudray.com/t/the-scan-showed-double-image/146 "2021-03-29T08:12:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Technician](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.cloudray.com/technician/32/15_2.png) [@Technician](https://forum.cloudray.com/u/Technician)\
**Post date:** [March 29, 2021, 8:12am UTC](https://forum.cloudray.com/t/the-scan-showed-double-image/146/1 "2021-03-29T08:12:54Z")

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1.Possible cause analysis of failure:Do not know how to adjust the reverse clearance.  
2.Solution:Draw a 20×20 box and set the Scan Interval value to 1 in Scan Parameters.Adjust the output power and start scanning.Use a ruler to measure the line from the scanning surface,(left+right-),and fill the measured number into the software settings.Tick scan(reverse gap) in General Settings.