Canon Kabushiki Kaisha

Nobuyuki Hatasa

Hajime Yamamoto

Kenjiro Watanabe

Kimiyuki Hayasaki

Eiichiro Shimizu

Tatsuo Nanjo

Hideo Fukazawa

Yutaka Koizumi

Mikiya Umeyama

Yukuo Yamaguchi

Hiroki Tajima

Hiroshi Koshikawa

Tatsuhiko Yamazaki

Takatoshi Kitagawa

Yasuo Kotaki

Kenji Kitabatake

Tetsuya Tateno

Takayuki Ochiai

Tsutomu Abe

Ryoji Inoue

Keiichiro Tsukuda

Takuya Hatsui

Hideki Ogura

Hiroyuki Fukushima

Takeshi Kono

Norio Tsurui

Hiroyuki Ishinaga

Masanori Takenouchi

Masashi Ogawa

Masaya Uetsuki

Masahiko Igaki

Shogo Kawamura

Haruyuki Matsumoto

Yasunori Senshiki

Masaaki Ishibashi

Takeshi Kohno

Shinji Watanabe

Shinichi Miyauchi

Yoshinori Kojima

Yoshihiko Sugimura

In a configuration to inform conditions of an ink tank such as an ink residual quantity by use of a light emitting portion such as a light emitting diode, a display in a position easily viewable to a user is achieved without requiring electric wiring that hinders user visibility and operability. A display section for displaying information by letting light out is separated from a light emitting portion, and a light guiding portion for achieving optical connection between both of the constituents is provided on an ink tank holder. In this way, it is possible to dispose the light emitting portion and the display section respectively in optimum locations, and to ensure freedom of disposing the display section in a position achieving fine user visibility.

Ink tank holder and ink jet printing head cartridge having a light guiding portion

When a package in which a tankis wrapped is opened, caused is an action of reversing vertical positions of an end face of the tankhaving an ink supply portion, and an end face opposite to the foregoing end face. Along with this action, air existing inside the tankascends, and then is separated by air separating portions. Thus, a coloring material component inside the tank is stirred.

Liquid container and liquid container package

The printing head has connection terminals for performing an electrical connection of signals including drive signals of print elements by contacting connection terminals in on an apparatus side when the head is mounted onto an ink jet printing apparatus. Connections of all terminals can be guaranteed by detecting contacts of a part of terminals. Among the terminals in the head, terminals whose distances from the connection terminals in the printing apparatus become maximum when a deviation occurred in the mounting are used as terminals for contact detection. For example, from among the connection terminals arranged in a planar area, which is rectangular-shaped, terminals positioned in corners are used as the terminals for the contact detection. When the contacts of these terminals are detected, the connections of all the terminals inside the area can be guaranteed.

Ink jet printing head and ink jet printing apparatus using the same

An ink tank receives data signals from a printer and an LED provided on the ink tank is driven on the basis of the received data signals. The LED is driven in an inactive time period that is different from the time period in which the date signals are input to the ink tank.

Signaling module, liquid container, recording apparatus, and control method

A liquid container for containing liquid includes an optical path formation member for forming an optical path for guiding to an operating portion light received from an outside at a predetermined position of the liquid container, the optical path forming member constituting a part of the liquid container, wherein the operating portion is caused to emit light by the light guided by the optical path.

Liquid storage container and ink jet recording apparatus

This liquid supply system has a liquid storing portion, and a first communication hole and a second communication hole formed in the bottom of the liquid storing portion. The liquid supply system has a gas circulation mode of leading a gas in the liquid storing portion to the outside through the second communication hole and forcing the gas into the liquid storing portion through the first communication hole.

Liquid supply system and ink jet recording apparatus

Ink tank for printer

A variation in brightness among light emitting portions provided in a plurality of liquid containers can be reduced to decrease power required to drive the light emitting portions, while allowing the light emitting portions to appropriately function as reporting units. Thus, to illuminate the light emitting portions provided in the plurality of ink tanks, a driving pulse for each of the plurality of light emitting portions is modulated to control rates of a light emission period and a light emission halted period during a unit time. Further, the light emission period of at least one of the plurality of light emitting portions overlaps the light emission halted period of at least another one of the plurality of light emitting portions.

Method for controlling light emitting portion for liquid container and printing apparatus

The printing head has connection terminals for performing an electrical connection of signals including drive signals of print elements by contacting connection terminals on an apparatus side when the head is mounted onto an ink jet printing apparatus. Connections of all terminals can be guaranteed by detecting contacts of a part of terminals. Among the terminals in the head, terminals whose distances from the connection terminals in the printing apparatus become maximum when a deviation occurred in the mounting are used as terminals for contact detection. For example, from among the connection terminals arranged in a planar area, which is rectangular-shaped, terminals positioned in corners are used as the terminals for the contact detection. When the contacts of these terminals are detected, the connections of all the terminals inside the area can be guaranteed.

A control section of each ink tank detects a difference in voltage value between a voltage value of an output data signal and a voltage value of an input data signal through the differential detector. When a plurality of ink tanks of the same color are mounted, this voltage difference carries a value different from a voltage of the original output data signal. Accordingly, by detecting this voltage difference, it can be detected that the plurality of the ink tanks of the same color are mounted, these ink tanks can be specified and identified, and be controlled individually.

Liquid container and ink jet printing apparatus

A recording liquid container for containing liquid for recording to be supplied to recording means, said recording liquid container being detachably mountable to a mounting portion of a recording device, said recording liquid container includes an information memory medium storing predetermined information; wireless sending means capable of wireless sending of a predetermined information in said information memory medium within a predetermined range; a wireless communication antenna for wirelessly sending radio wave; and communication property changing means for changing a communication property of the wireless sending.

Recording liquid container, ink jet recording apparatus, and cartridge collecting apparatus

Ink tank holder and ink jet printing head cartridge

A package is formed including an ink tank in a bag. A cap is attached to an ink supply port of the ink tank. In the cap including an adsorption material made of zeolite, the adsorption material is arranged in a position in the cap where the adsorption material does not interfere with the ink tank when the cap is attached to the ink tank. By this arrangement, it is possible to adsorb ammonia gas issuing from the ink tank and hold down the amount of ammonia gas that reacts with electrodes of the substrate on the ink tank. Zeolite adsorbs and releases ammonia gas and does not adsorb ammonia gas limitlessly; therefore, it is possible to prevent notable changes in the composition of components of the ink stored.

Ink tank, recording head and package including the ink tank and the recording head

A liquid storage container comprises a liquid storage part for storing a liquid, a connection part for taking out the liquid, provided in the bottom part of the liquid storage part, and a pipe provided in the liquid storage part so as to cover the opening of the connection part on the liquid storage part side, wherein a plurality of liquid inlet holes are formed in the pipe, each communicating with the liquid storage part at a plurality of positions in the vertical direction, and the inlet resistance of the liquid inlet holes disposed in the lower layer area out of the plurality of the liquid inlet holes of the pipe is larger than the inlet resistance of the other liquid inlet holes.

Liquid storage container, and liquid discharge recording apparatus using the container

Growing community of inventors

Kawasaki, Japan

Nobuyuki Hatasa