Print media handling system for compact printer with traversing,

Details Print media handling system for compact printer with traversing, Print media handling system for compact printer with traversing,

1987-03-02

1988-08-02

Goldberg, E. A.

Recorders

Record receivers and/or driving means therefor

346136, 346140R, 400624, 400625, 355 3SH, 355 14SH, G01D 1524

Patent

active

047616644

ABSTRACT:
Printer apparatus of the kind having: (i) print/cartridges for printing on successive line sectors of print media that are advanced into and out of the print zone; (ii) a platen means including a feed/transport periphery that is movable around an endless path past a sheet ingress zone, the print zone and a sheet egress zone; (iii) a sheet supply station for positioning a stack of sheet print media at a position upstream of the sheet ingress zone; and (iv) structure for effecting periodic feeding engagements between the platen and successive face sheets of a positioned stack, features a pressure roller, located proximate the sheet ingress zone at a position upstream of the print path, for biasing a sheet moving therepast into drive transmission relation with the platen. The printer can also comprise a downstream guide, located proximate the sheet egress zone at a position downstream of the print zone printing means. In a related feature, the printer includes a carriage constructed to support a plurality of print heads so that each can traverse the complete line width of the print zone and a control means for synchronizing movement of the carriage with the platen to effect initial sheet feed. In another related feature the printer has a reference surface precisely parallel to the longitudinal axis of the feed/transport platen and carriage structure to index upon that reference surface during traverse.

REFERENCES:
patent: 3789969 (1974-02-01), Howard et al.
patent: 4223323 (1980-09-01), Bader et al.
patent: 4439778 (1984-03-01), Fujisawa
patent: 4569611 (1986-02-01), Watanabe et al.
patent: 4600929 (1986-07-01), Cardona et al.

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