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:
Dec. 25, 2001
Filed:
May. 26, 1998
Atsushi Isozaki, Ichinomiya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
After a printing paper cueing by a stepping motor in a printing mode in a copying process, mode switching is made from the printing mode to a copying mode while maintaining a supply of an excitation current to the stepping motor. In the copying mode, both a printing paper conveyance mechanism and an original document conveyance mechanism are driven by the stepping motor for simultaneous operations of reading information on the original document and printing the information read from the original document to the printing paper. Thus, synchronization between the excitation current and the rotation of the stepping motor is maintained even when mechanical load exerted to the stepping motor increases. In other mode switchings, except to the copying mode, the supply of excitation current to the stepping motor is discontinued.