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, 1977
Filed:
Feb. 20, 1975
Canon Kabushiki Kaisha, Tokyo, JA;
Abstract
A printer for use with a portable calculator, a handy typewriter or the like is provided with a printing control device which comprises a control circuit for controlling the operation of a stepping motor to feed a recording medium. In order to control the motor, the control circuit generates a series of printing control signals and stepping control signals which include an initial stepping control pulse and a final stepping control pulse. Before printing is started, the motor is stepped forwardly with the initial control pulse and is set in an initial condition to make a space preceding a character to be printed on the recording medium. After the printing of one character is performed, the motor is stepped forwardly with the last stepping control pulse to make sufficient space between adjacent characters to be recorded on the recording medium.