Method for positioning web-shaped recording substrates in printi

Details Method for positioning web-shaped recording substrates in printi Method for positioning web-shaped recording substrates in printi

1992-09-16

1993-09-14

Eickholt, Eugene H.

Typewriting machines

Sheet or web

For feeding web record-medium

400616, 4006163, 364471, 364737, 36457102, 226 6, 226 2, 226 28, 226143, 250571, 250559, B41J 1126

Patent

active

052442934

ABSTRACT:
An occurring positioning error is electronically corrected during the positioning of edge-perforated continuous form paper (10) in a print position (PP) relative to a print station (13) of a printing device (1). Edge perforation holes (EH1 . . . EHv) on the continuous form paper (10) are scanned for the electronic correction and the positioning error is determined for a block (B1 . . . Bm . . . Bu) of the continuous form paper (10). The positioning error is composed in this case for each block (B1 . . . Bm . . . Bu) of at least one slippage value (Sv-1, Sv) as well as of a residual error (RE1 . . . REm . . . REu). While the slippage value (SVv-1, SVv) for a block (Bm) is corrected immediately, a residual error (REm) is taken into consideration during the correction of the position error for a next following block (Bm+1). In addition to the electronic correction of the positioning error, determined for the block (B1 . . . Bm . . . Bu), the positioning process is surveyed relative to interventions (I). If for example an intervention (I) is determined during the positioning of the single block (Bm), then the positioning error is determined anew.

REFERENCES:
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patent: 4577849 (1986-03-01), Watanabe
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patent: 4998835 (1991-03-01), Negishi et al.
patent: 5043904 (1991-08-01), Sikes et al.
patent: 5061096 (1991-10-01), Hauslaib ete al.
patent: 5072414 (1991-12-01), Buisker et al.

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