Typewriting machines – Sheet or web – Including skew correction responsive to position of sheet or...
Patent
1997-10-29
1999-09-07
Eickholt, Eugene
Typewriting machines
Sheet or web
Including skew correction responsive to position of sheet or...
226 19, 226 20, 226 49, B41J 1142
Patent
active
059476176
ABSTRACT:
A printer comprises a skew correction mechanism for a roll paper between a roll paper loading section and a recording section. The skew correction mechanism has a pair of first roller and second roller each having a guide surface for the roll paper, arranged in the transverse direction of the roll paper and eccentrically mounted on respective shafts. A skew of the roll paper is detected by a skew sensor, and the first and second rollers is rotated by a predetermined angle in the opposite directions to obtain different path lengths for the roll paper between both the guide surfaces of the rollers, thereby correcting the skew feed of the roll paper.
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patent: 4839674 (1989-06-01), Hanagata et al.
patent: 5138341 (1992-08-01), Kobayashi
patent: 5189957 (1993-03-01), Kobler et al.
patent: 5216444 (1993-06-01), Noguchi et al.
"Skewed Drives" Arsenault et al, IBM Technical Disclosure Bulletin, vol. 23, No. 5, Oct. 1980 pp. 1817-1818.
"Pivoting Registration Roll for Bidirectional Registering Sheet Feed" Arldt et al, IBM Technical Disclosure Bulletin, vol. 26, No. 7A p. 3133, Dec. 1983.
"Self Adjusting Document-Feed-Skew-Correcting Device", IBM Technical Disclosure Bulletin, vol. 35 No. 1B pp. 93-95, Jun. 1992.
Eickholt Eugene
NEC Corporation
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