Typewriting machines – Sheet or web – Including programmed-control-system for record-medium feed
Patent
1996-12-27
2000-01-25
Burr, Edgar
Typewriting machines
Sheet or web
Including programmed-control-system for record-medium feed
27126501, 271266, 400708, B41J 1142, B65H 702
Patent
active
06017160&
ABSTRACT:
The invention comprises a rotatable sheet feed roller; a rotatable press-contacting roller capable of press-contacting against an outer peripheral surface of the sheet feed roller; a sheet feed motor, being a stepping motor, for rotationally driving the sheet feed roller; and a transmission mechanism for transmitting the rotational power of the sheet feed motor to the sheet feed roller; wherein a line feed starting position of the recording sheet at a initial predetermined pitch is set to permit continuation of line feeding by a predetermined amount from a moment a mechanical condition with respect to the recording sheet changes during line feeding at a portion where the mechanical condition changes. The invention provides a printer that performs line feeding by a very accurate amount by line feeding at a constant pitch, even though a mechanical condition of the sheet feed mechanism changes.
REFERENCES:
patent: 4778296 (1988-10-01), Takahashi
patent: 4834564 (1989-05-01), Oda
patent: 4834568 (1989-05-01), Kagami et al.
patent: 4875790 (1989-10-01), Karube et al.
patent: 4934845 (1990-06-01), Kato
patent: 4976557 (1990-12-01), Uchikata
patent: 5050858 (1991-09-01), Nakamura
patent: 5097273 (1992-03-01), Moro et al.
patent: 5169249 (1992-12-01), Kitabata
patent: 5520383 (1996-05-01), Amagai et al.
patent: 5564848 (1996-10-01), Quintana
patent: 5584590 (1996-12-01), Ito
patent: 5639171 (1997-06-01), Brewster
Nakamura Tadashi
Sato Minoru
Alps Electric Co. ,Ltd.
Burr Edgar
Grohusky Leslie J.
LandOfFree
Printer sheet feed device having controller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Printer sheet feed device having controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printer sheet feed device having controller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2311931