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Causes and solutions:
· Improper document preparation -Verify that the document to be scanned through the ADF do not have staples, paper clips, staple holes, binder holes, glued binder edges, and is within the paper weight specifications for your model.
· Document composition – The chemical composition of certain documents can cause multi-feeding. Test using standard 20 pound copy paper if the document composition is in question.
· Improper scanner settings – If scanning mixed batches of paper sizes and/or color, then verify that the double feed length and/or thickness check has been turned off. Also verify that the paper thickness setting matches that of the documents that you are scanning. Change or run the automatic page thickness setup accordingly (reference the Operator’s Guide for your particular scanner).
· Dirty pad assembly/brake roller - Clean the ADF thoroughly, especially the pad assembly/brake roller using the Fujitsu Scanner cleaning kit or 90% isopropyl alcohol, a lint free cloth and Q-tips (reference the Cleaning and Maintenance Guide for your particular scanner).
· Worn pad assembly/brake roller – The pad assembly/brake roller functions just like a brake pad on a car. It is designed to serve as an abrasive to separate the pages in the ADF. Therefore, once it reaches the end of its wear life it will need to be replaced (reference the Operator’s Guide for your particular scanner).
· Weak or broken pad/brake roller springs – The pad/brake roller springs apply the proper pinch pressure to feed only one page at a time. If the springs are weak or broken then the proper pinch pressure may not be possible and multi-feeding can occur. Change or adjust the springs when you change the pad assembly (reference the Operator’s Guide for your particular scanner).
· Worn pick roller – The pick roller’s job is to pull the page into the ADF. It works with the pad assembly to apply the proper pinch pressure to feed only one page at a time. If the pick roller is at the limit of its wear life then the proper pinch pressure may not be possible and multi-feeding can occur. Change the pick roller (user replaceable models only).
· Improperly installed consumables – Failure to properly install the pad assembly/brake roller and pick roller can cause multi-feeding as well as other problems.
· Hardware failure – Component failure (service required).
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