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US 6,183,406 B2Granted
Printer tractor paper feeder and ironer
AssigneePrintronix, Inc.
InventorsGordon B. Barrus, Moshe Ben-Yeoshua, Saul Gutnik, Fritz Dietiker
Life of this patent
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AssigneePrintronix, Inc.
InventorsGordon B. Barrus, Moshe Ben-Yeoshua, Saul Gutnik, Fritz Dietiker
Estimating the term…
A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.
A printer having a tractor paper feeder for feeding paper having tractor perforation holes for being driven by said tractor paper feeder comprising;
A method of transporting paper with holes at its edge regions by a tractor for a printer comprising:
A printer tractor for driving media having openings at its edge regions comprising:
Dependencies are inferred from the claim text.