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:
Jul. 24, 1990
Filed:
Aug. 30, 1989
Masayuki Ainoya, Katsuta, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
An electrographic printer for printing an image on a continuous printing sheet having a leading edge and a tail edge, the printer including a photosensitive drum, a tractor for feeding the continuous printing sheet to the photosensitive drum, a guide member positioned at an image transfer position and disposed movable toward and away from the photosensitive drum for providing an intimate contact of the printing sheet with the photosensitive drum so as to transfer a toner image on the drum to the printing sheet, a fixing section for fixing a transferred toner image on the printing sheet, a sheet stacker and a feed roller for feeding an image fixed sheet to the sheet stacker, and means for changing a gap between the guide member and the photosensitive drum. The changing means enlarges the gap until the leading edge of the printing sheet passes through the feed roller, and reduces the gap after the leading edge passes through the feed roller. The printer further includes means for changing sheet feeding speed of the feed roller lower than the sheet feeding speed of the tractor after the tail edge of the printing sheet passes through the tractor, whereby a printing to a tail edge portion of the printing sheet is performable.