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. 04, 1989
Filed:
Dec. 16, 1987
Tomohiro Aoki, Yokohama, JP;
Kazuo Kawakubo, Chigasaki, JP;
Katsushi Furuichi, Yokohama, JP;
Kiyokazu Namekata, Machida, JP;
Hidetoshi Tanaka, Musashino, JP;
Yoshikuni Tohyama, Yokohama, JP;
Toshirou Kasamura, Yokohama, JP;
Toshio Honma, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A double-sided image forming apparatus having first and second input devices respectively for entering function data for desired image formation functions and for entering the number of copies to be formed. A memory is provided to store the function data, and a storage compartment is provided to store sheets during duplex copying. An image forming device is arranged to operate in two procedures: a first procedure in which image formation is effected on the sheet's first side in accordance with first function data, and a second procedure in which image formation is effected on the other side in accordance with a second, different, function data. A controller controls the image forming device so that entry of number data and function data is permitted before the first procedure begins, but so that entry of only function data and not number data is permitted after completion of the first procedure. A detecting device is provided to detect the presence of sheets in the storage compartment, and the controller operates until sheets are no longer detected.