A paper supply holder from which a continuous strip of paper is fed to an office printing machine such as a typewriter or calculator and then returned from the machine to a collecting shelf. The paper holder which has generally the form of an open-ended cylinder includes a longitudinally extending slot from which paper e.g. in the form of a chain of blank forms is withdrawn the supply roll within the cylinder and fed to the machine. After leaving the machine, the chain of now-completed blanks, is returned to, and accumulates on, a shelf located beneath the paper holder. The paper holder and shelf are integrated into a common supporting structure which can be attached by brackets to the machine itself, or at the side of a table on which the machine is supported.
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