Printer with sheet positioning marks control

Details Printer with sheet positioning marks control Printer with sheet positioning marks control

1995-06-23

1996-10-15

Eickholt, Eugene H.

Typewriting machines

Sheet or web

For feeding web record-medium

400708, 101228, 101485, 36447813, 2505592, 25055926, 25055939, 25055944, 156384, B41J 1126

Patent

active

055648460

ABSTRACT:
The printer is provided with a detection data storage area section comprising sixteen storage areas for storing detection data from a transmission type sensor for every 1-step driving of a feed motor. When the difference between the last detection data and the detection data before steps is a value equal to or more than 0.7 V, the last detection data is set in a gap determination level storage area, is set in a gap flag area, and counting by a gap length counter is started. Thereafter, when the detection data from the transmission type sensor comes to be equal to or smaller than the value set in the gap determination level storage area is set in the gap flag area and the position in the half of the count value of the gap length counter is recognized as the gap center.

REFERENCES:
patent: Re28732 (1976-03-01), von Hofe
patent: 4556442 (1985-12-01), Torbeck
patent: 4598780 (1986-07-01), Iwasaki et al.
patent: 4844629 (1989-07-01), Hoyt
patent: 4998835 (1991-03-01), Negishi et al.
patent: 5061946 (1991-10-01), Helmbold et al.
patent: 5133396 (1992-07-01), Selak et al.
patent: 5172991 (1992-12-01), Ikeda
patent: 5322380 (1994-06-01), Crocker
Patent Abstracts of Japan, vol. 18, No. 366 (M-1636) Jul. 11, 1994 and JP-A-06 099 638 (Fujitsu Ltd) 12 Apr., 1994.

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