The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2000
Filed:
Dec. 27, 1996
Minoru Sato, Iwate-ken, JP;
Tadashi Nakamura, Iwate-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
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.