In combination, a common printer platen for conveying printed media and documents to a printer exit including a roller and a guide ribs assembly comprising a beam, a series of spaced guide ribs and at least one star wheel forming a nip with the roller;
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- wherein said assembly including said beam, said guide ribs and said at least one star wheel are pivotable relative to said roller to accommodate printed media or documents of a first range of thickness and printed media or documents of a second range of greater thickness passing through the nip.