Ribbon drive arrangement for a printer

Details Ribbon drive arrangement for a printer Ribbon drive arrangement for a printer

B - Operations, Transporting

41

J

197/110

B41J 33/14 (2006.01) B41J 33/28 (2006.01)

Patent

CA 1169378

LE9-81-003 RIBBON DRIVE ARRANGEMENT FOR A PRINTER Abstract of the Disclosure Apparatus for advancing equal increments of tape to a takeup reel utilizes a drive blade having an edge that tends to slip in one longitudinal direction and grip in the other. Reciprocation of the drive blade at the circumference of the accumulated tape results in incremental tape movements in the direction corresponding to gripping of the drive edge. For a preferred implementation, the drive edge has the contour of an involute. By so contouring the drive blade, the engagement at the tape circumference is essentially tangential for a broad range of diameters of the accumulated tape.

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