Advancing material of indeterminate length – Processes – Involving registration of material
Patent
1986-10-10
1989-02-28
Levy, Stuart S.
Advancing material of indeterminate length
Processes
Involving registration of material
226 45, 226168, 271266, B65H 2300, G03G 1510
Patent
active
048077909
ABSTRACT:
To feed a sheet of paper by use of a frictional force with the paper sheet, feed holes aligned in the direction of feeding at either edge of the paper sheet are detected by means of a feed hole detecting means located in a feed hole detecting position. An actual amount of paper feeding is measured by detecting the feed holes that pass through the feed hole detecting position, and then the amount by which the paper feeding means is to advance is adjusted according to the measured actual amount of paper feeding. Paper feeding can thereby be precisely controlled. Additionally, a paper feeding amount control circuit measures the initial phase difference between the position of a feed hole in a sheet of paper and the feed hole detecting position in the initial stage of paper feeding. It counts the number of feed holes passing through the feed hole detecting position during paper feeding and then feeds the papers by a further amount corresponding to the measured initial phase difference after the counted number of feed holes become equal to that corresponding to one page of the paper sheet. One-page paper feeding is thereby performed with accuracy.
REFERENCES:
patent: 3497121 (1970-02-01), Gold et al.
patent: 3656673 (1972-04-01), Erikson
patent: 3713571 (1973-01-01), Simonton
patent: 4143566 (1979-03-01), Luciak et al.
patent: 4485949 (1984-12-01), Gebhart et al.
Ushioda Kentaro
Yamaguchi Shigeaki
Levy Stuart S.
Sohacki Lynn M.
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