Multiweb printer system with end of web responsive control

Details Multiweb printer system with end of web responsive control Multiweb printer system with end of web responsive control

1992-02-10

1993-09-21

Fuller, Benjamin R.

Recorders

Thermal recording

400249, 400120, B41J 2325, B41M 534

Patent

active

052473147

ABSTRACT:
A multicolor printing device has a plurality of successive print heads along a path to print images from a dye web of a respectively different color at each head on a dye receiving sheet successively advanced to each head in a set of printing cycles corresponding to the number of heads. The device is operated under end of web roll responsive control to prevent any web from reaching an end of roll condition during a set of printing cycles. Each web has a predetermined number of successive dye areas and intervening dye-free areas that are sensed and counted, as the web moves in increments in the successive cycles, to control the operation and to register the successive dye areas with the associated head. When the count indicates that the number of dye areas not yet subjected to a printing cycle on the web at any head corresponds to the number of heads preceding that head along the path, the device is controlled to prevent further cycle operation at the first head while permitting respective completion of the cycle operations for already advanced sheets at the remaining heads.

REFERENCES:
patent: Re33260 (1990-07-01), Stephenson
patent: 4507667 (1985-03-01), Tsuboi
patent: 4620199 (1986-10-01), Tatsumi et al.
patent: 4863297 (1989-09-01), Fujii
patent: 5037218 (1991-08-01), Shimizu et al.

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