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:
Nov. 27, 2001
Filed:
Nov. 13, 1997
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In control of a recording process in accordance with block driving, the driving timing of a pulse train is avoided from overlapping with each other between blocks, and a load imposed on a power supply during the operation is reduced. To that end, a recording apparatus includes a pulse generating unit for generating a driving pulse train consisted of a number (m) of pulses including a plurality of preheating pulses and one main driving pulse taking part directly in a recording process, the intervals between the (m) pulses being each not less than the total time of pulse widths of the (m) pulses, and a driving unit for dividing a plurality of recording elements into multiple blocks, and driving the recording elements in units of block to perform recording in such a manner that just before the second preheating pulse of the driving pulse train for one block, the first preheating pulse of the driving pulse train for the next block is applied.