Print head

Details Print head Print head

B - Operations, Transporting

41

K

101/112

B41K 1/10 (2006.01) B41K 3/06 (2006.01)

Patent

CA 1072397

Docket M-305 PRINT HEAD Abstract of the Disclosure There is disclosed a print head having a print head frame, a plurality of drive wheels, a support, and a plurality of printing bands trained about the support and the respective wheels to that the selected printing elements can be presented at a printing zone. Each printing band has a plurality of different printing elements connected by hinges. The support has a pair of support members having respective elongated lands, and the lands have tapered entries and terminate at opposed generally parallel shoulders. Each printing band has spaced apart, generally flat, smooth lugs at its underside. The support shoulders are spaced apart by a distance approximately equal to the length of a lug. The support lands contact only the under- sides of adjacent hinges while a printing element is at a printing zone. Each wheel has a plurality of notches to receive the lugs on the underside of the respective printing band. Each wheel notch has a pair of shoulders spaced apart by a distance substantially equal to the length of a lug. Each wheel has peripheral lands between the wheel notches for contacting hinges on the underside of the printing band. Each peripheral land has a peripheral dimension substantially equal to the spacing between adjacent lugs, and the wheel shoulders at each notch are generally parallel.

250164

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