Canon Kabushiki Kaisha

Mikio Shiga

Shinya Matsui

Hiroshi Tajika

Hiroyuki Ishinaga

Toshio Kashino

Koji Terasawa

Hideki Yamaguchi

Katsuyuki Yokoi

Yoshie Asakawa

Akira Miyakawa

Tetsushi Kohno

Shigemitsu Tasaki

Akira Nagatomo

Shigeru Tsuyukubo

Tsutomu Takahashi

Masao Maeda

Tetsuya Kawanabe

Takashi Imoto

Tetsuo Kimura

Kazuya Sakamoto

Yoji Ara

Yoshiaki Kaburagi

Kazuhisa Ebuchi

Nobuo Onuma

Takayuki Fujita

Tamaki Hashimoto

Hiroshi Maruoka

Nobuhiro Saito

Shunichi Kunihiro

Shoichiro Shoda

Takanori Mukai

A printing apparatus can quickly cancel a print job without any influence on the other subsequent print jobs when a print cancel instruction is issued. During printing, if a print cancel instruction is inputted from a printer operation unit, a printer function manager notifies a print command interpreter of the cancellation. The print command interpreter searches data processed at that time in a transmission/reception buffer for an end mark command indicating the end of the cancelled job. Then the print command interpreter deletes the data before the end mark command.

Printing apparatus and printing system, control method, storage medium and program

Liquid ejecting head and head cartridge capable of adjusting energy supplied thereto, liquid ejecting device provided with the head and head cartridge, and recording system

A method for standardizing an ink jet recording head is arranged to be capable of utilizing the characteristics of each of recording heads to the maximum, while maintaining the compatibility between them. Particularly, the compatibility is maintained between the novel type recording head whose interior is partitioned into two layers through movable members, and a conventional type recording head. When the conventional type recording head is mounted on a novel type recording apparatus, all the requirements are handled by the novel type recording apparatus side to drive the conventional type recording head under a condition regulated for the conventional type recording head. When the novel type recording head is mounted on a conventional type recording apparatus, it is driven within the capacity of performance of the conventional type recording apparatus. A discriminator for discriminating the kind of mounted recording head is provided for each of the recording apparatuses. In this way, various control operations are attained. When the structure is arranged to use separate recording heads and ink tanks, the compatibility is maintained, while utilizing the difference in characteristics of the novel type recording head and ink, and those of the conventional type recording head and ink to the maximum by means of discriminating one kind of ink from another.

Method for standardizing an ink jet recording head and an ink jet

In a recording apparatus, a recording operation is controlled by being connected to a host computer. The apparatus includes a sheet supporting unit for supporting a plurality of sheets, a feeding unit for feeding a sheet supported by the sheet supporting unit, a manual insertion port for manually inserting a sheet into the main body of the apparatus, a conveying unit for conveying the sheet fed from the sheet supporting unit or the sheet inserted from the manual insertion port, a recording unit for performing a recording operation on the sheet fed by the conveying unit, a sheet detection unit for detecting the sheet inserted from the manual insertion port, and a control unit for causing the apparatus to execute a recording operation in a manual insertion mode based on the detection of the manually inserted sheet by the sheet detection unit, and for temporarily providing an off-line state with respect to the host computer after the recording operation has been completed.

Recording apparatus with detection of manually inserted recording sheet

This specification discloses an ink jet recording method and apparatus for printing thinning print dots based upon a printing mode or the printing dot density of the characters.

Ink jet recording apparatus and method with dot thinning

A recording apparatus using a recording head driven in accordance with print information includes a feeder for feeding a recording material; a discriminator for discriminating presence or absence of next printing information before completion of discharging of a current printed recording material; and a controller for controlling the feeder to start feeding of the next recording material prior to completion of the discharging of the current recording material, when the discriminator discriminates the presence of the next printing information.

Recording apparatus

This specification discloses an ink jet recording method and apparatus for printing thinning print dots and based upon a printing mode or the printing dot density of the characters.

Ink jet recording apparatus with detection of environmental condition

A method of cleaning a discharge port surface of an ink jet recording apparatus includes wiping the surface using a blade having a certain contact area with the surface and rubbing the surface using a rubbing member having a larger contact area with the surface than the blade. The wiping and rubbing operations are performed independently of each other so that their different purposes can be better accomplished. For example, since rubbing the surface need not be done as often as wiping, they can both be performed at optimum intervals. The rubbing member can be removably mounted to a replacement ink cartridge so that the rubbing member can be conveniently replaced at the same time as the cartridge.

Ink jet recording apparatus having a discharge orifice surface and a

A recovery device for an ink jet recording apparatus having a cup for an ink discharge port of a recording head and a suction device communicating with the cap for sucking ink from the ink discharge port includes a communicating tube, a communicating valve, and a ventilating valve. The communication tube communicates with the cap and a subtank which supplies ink to the recording head. A communicating valve connects and disconnects communication of the cap with the subtank and is provided in an intermediate portion of the tube. A ventilating valve communicates the interior of the tube with the atmosphere and is provided separately from the communicating valve.

Ink jet recovery device including a communicating valve and a

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Yokohama, Japan

Mikio Shiga