I have also seen this function on my Workcenter 6515 and can it be found when selecting from menu screen "Device, then Support" and is a selectable item either on or off, however I cannot find any reference to it either online or within the manual. I would like to know precisely what this item achieves and which part of the printer does it affect.
I can't find it on a machine either, got a picture or description of where on the device you see it?
It is not in the online knowledgebase.
If you have not already resolved this issue, we suggest you search our online knowledgebase for this product: VersaLink C605.
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What is "paper blocking prevention" in the menu? it is not in the manual.