Typewriting machines – Sheet or web – Including programmed-control-system for record-medium feed
Patent
1999-05-25
2000-12-12
Hilten, John S.
Typewriting machines
Sheet or web
Including programmed-control-system for record-medium feed
400624, 400626, 347104, B41J 1142
Patent
active
061589098
ABSTRACT:
A Z-fold print media handling system for printing banners and the like uses an inkjet printing mechanism without a tractor-feed. A series of stuttering stopping and starting steps generates varying static and dynamic frictional forces to separate the first sheet of a Z-fold stack from the remainder of the stack. Both conventional cut-sheet media and Z-fold media are fed using the same printing mechanism, which pulls the media toward a printzone through frictional engagement with a first surface of the media. To prevent printhead crashes and smearing the image near the perforations joining the Z-fold sheets, the printhead to media spacing is increased for Z-fold media over the standard spacing used for cut-sheet media. A cam feature is incorporated into the media drive clutch disk to determine whether an operator has set a selector lever for cut-sheet or Z-fold printhead to media spacing.
REFERENCES:
patent: 5269613 (1993-12-01), Olson et al.
patent: 5305020 (1994-04-01), Gibson et al.
patent: 5838338 (1998-11-01), Olson
Crespo Ivan F.
Hays Gary
Hendricks Jeffrey T
McCue, Jr. Thomas E
Santon John C
Chau Minh H.
Hewlett--Packard Company
Hilten John S.
Martin Flory L.
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