Lines on Copies – How to Fix

In most cases when Copying through the ADF (automatic document feeder), also known as the Top Feeder, will look nice and clean. Other times like this...

And in most cases the Solution is simple and quick to resolve. The below steps will resolve the issue:​

The main reason why you're getting these lines is because there is usally foreign matter, either ink, whiteout, pens marks or sticky tape on the Slit Glass.

Open the RADF, Clean the Slit Glass with a soft cloth, then proceed with a test copy.

If problem persists, add alcohol or glass cleaner to cloth, recleain and test again.

For extremely stubborn and hard to see “spots”, align the piece of paper with the line with the slit glass to locate the “spot”. Clean and Test.

Download a handy Print out of the above instructions.


You could place this above the Machine or email out a copy to end users. 

If the issue is unresolved please contact us at
1300 – 441 – 911 or service@gbmachines.com.au

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