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:
May. 08, 2001
Filed:
Jun. 30, 1997
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an ink jet recording apparatus, a plurality of kinds of heads are separately mounted and a waste ink container is provided. The ink level of the waste ink container is monitored, and the kind of ink jet head mounted is detected. The amount of waste ink exhausted from a mounted ink jet recording head is corrected in response to the kind of ink jet head mounted. Each kind of ink jet printhead mounted has distinct waste ink exhaust properties caused by factors such as different size of ink drops, or different number of printhead exhaust ports which affect preliminary discharge amounts of waste ink and factors such as different suction loads on the ink tanks, different flow resistances of the ink flow passages and different viscosities of the inks used in the printheads which affect suction recovery amounts of waste ink. The recovery function is corrected such that the waste ink amount exhausted from the mounted head is carried out in accordance with the mounted ink jet head.