Title:
INK JET PRINTER
Document Type and Number:
Japanese Patent JP3229509
Kind Code:
B2
Abstract:
PURPOSE: To inform of the ink residue of an ink storage vessel by accurately reflecting even if the discharge quantities of print heads to be used are different by calculating ink consumption amount in response to the type of the head, and differentiating the forms of informing the residue based on it.
CONSTITUTION: A predetermined keying operation is conducted to replace a cartridge in an apparatus in which a black cartridge Bk and a color cartridge Cr can be arbitrarily replaced to move the carriage 5 to a home position, and at this time whether the cartridge Bk, or Cr is replaced or not is judged. This judgement is conducted by a circuit for detecting the change of a current value, and when the cartridge is replaced, whether it is new cartridge or not is judged. In the case of YES, the type of the replaced cartridge is discriminated. The set value of a memory is updated in response to the type of the cartridge, and the form of informing the residue is differentiated in response to the type.
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Inventors:
Isao Ebisawa
Hisao Yaegashi
Hidehiko Kanda
Atsushi Arai
Hisao Yaegashi
Hidehiko Kanda
Atsushi Arai
Application Number:
JP3273395A
Publication Date:
November 19, 2001
Filing Date:
February 21, 1995
Export Citation:
Assignee:
Canon Inc
International Classes:
B41J2/175; B41J29/42; (IPC1-7): B41J2/175; B41J29/42
Domestic Patent References:
| JP6305161A | ||||
| JP4316856A | ||||
| JP3159750A | ||||
| JP5318764A | ||||
| JP4141442A |
Attorney, Agent or Firm:
Yoshikazu Tani (1 person outside)