Canon Kabushiki Kaisha

Yohji Matsufuji

Hiroo Ichihashi

Tokuya Ohta

Masahiro Haruta

Tsuyoshi Eida

Yasuhiro Yano

Shigeo Toganoh

Shigeo Togano

Shigeyuki Matsumoto

Yasushi Takatori

Haruo Uehara

Yashuhiro Yano

A recording device comprises a plural number of ink jet device units, each unit comprising an ink jet head portion, its drive controlling portion and a wiring portion, juxtaposed on a common base plate.

Recording device

A recording device comprises a plurality of ink-jet recording units arranged separately from each other and an ink reservoir to supply an ink commonly to the recording units.

Recording device with multiple recording units and a common ink source

An ink-supplying device for feeding ink to a plurality of ink-jetting heads comprises an ink reservoir common to all the heads and ink-feeding means disposed parallel in the reservoir.

Ink-supplying device

A liquid supply apparatus is characterized by the provision of pumping means for supplied liquid interposed between a liquid supply portion and a portion to be supplied with liquid, a first valve mechanism having a small resistance in a forward direction, and a second valve mechanism having a high checking characteristic.

Liquid supply apparatus

In an ink-jet recording process which comprises forming droplets of an ink and recording on an image receiving material by using the droplets, said ink is prepared by dispersing fine particles of pigment into aqueous dispersion medium containing polymer having both a hydrophilic and a hydrophobic construction portion. An average particle size (D micron) of the pigment and an average molecular weight of the polymer satisfy the relationship represented by the following equation.

Recording process and a recording liquid thereof

An image recording device comprises a plural number of recording heads for jetting inks with respective different colors. The device performs recording of color images on a paper while reciprocally moving the recording heads in the direction in which they are arranged. First and second groups of recording heads are provided for respective colors, and the first group of recording heads are arranged in position with a predetermined pitch shifted in the direction of the arrangement of the ink jetting orifices of the respective heads from the second group of recording heads.

Ink jet image recording device with pitch-shifted recording elements

A multicolor recording apparatus having a plurality of independently drivable recording devices of the same color is provided with a distributor for distributing and supplying a recording liquid of the same color to the plurality of recording devices of the same color.

Multicolor recording apparatus

Ink jet recording device modular frame

An image forming device is provided which comprises a means for supplying a recording medium for transfer, a means for recording on said recording medium, a means for supplying a transfer-receiving member, a means for pressure contacting to said recording medium with said transfer-receiving member. The recording medium for transfer has an ink receptive layer laminated on its substrate so that said receptive layer can be peeled off from said substrate.

Image forming device

An ink jet recording apparatus comprises an ink jet head section constructed with a plurality of pre-divided, discrete ink jet heads, a drive control section and a wiring section, and a common supporting member, on which these ink jet head section, drive control section, and wiring section are disposed and electrically connected each other.

Ink jet recording apparatus

Ink jet recording apparatus having a full line multi-array orifice type ink jet head to perform the recording operation at its predetermined position, an ink storing tank to store ink for feeding to the ink jet head, and a common supporting member, on which the ink jet head and the ink storing tank are communicatively connected to each other in a manner not to cause relative positional displacement between them.

A liquid droplet is formed by producing and eliminating a bubble in a liquid in such a way that the liquid flow in the liquid conduit is not intercepted even when the bubble reaches the maximum volume.

Method for forming liquid droplets

A liquid recording medium for use in a recording process, wherein said recording medium is discharged from a discharge orifice in a recording head and spattered in the form of droplets for recording, and containing (a) a recording agent for forming recorded images and (b) a carrier liquid capable of dissolving or dispersing the recording agent. The recording agent is a compound having 2-8 sulfo groups per molecule and having the formula (A) ##STR1## where the Q.sub.1 radicals are similar or dissimilar members selected from phenylene and naphthylene, the Q.sub.2 radicals are similar or dissimilar members selected from phenyl and naphthyl, the Q.sub.1 radicals and the Q.sub.2 radicals may be unsubstituted or amino substituted, hydroxyl substituted or sulfo substituted, R.sub.1 -R.sub.6 are similar or dissimilar members selected from hydrogen, amino, hydroxyl and sulfo, and said sulfo groups as mentioned above are all in the form of sodium salt or quaternary ammonium salt.

Liquid recording medium

A recording liquid composed of an aqueous composition containing a water-soluble dye as the recording agent comprises a total concentration of halogen ions and acid radicals containing in said composition within the range from 0.00001 to 0.5% by weight.

Recording liquid and method for producing the same

An ink jet recording head of the type in which ink droplets are jetted from the orifice of the head toward a recording material to effect recording on the surface of the recording material with said ink droplets, said recording head characterized in that at least the area surrounding the jet orifice is treated with a compound of general formula: R.Si.X.sub.3 wherein, R is a fluorine containing group selected from fluoroalkyl, fluoroaryl, fluorocycloalkyl, fluoroalkaryl and fluoroalkylaryl, each having 1 to 20 carbon atoms, and the ratio in number of fluorines: other elements in said fluorine containing group being not less than 1:1, and X is halogen, a hydrolyzable group selected from alkoxy, alkyl and acyloxy each having 1 to 5 carbon atoms, or hyroxyl.

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Tokyo, Japan

Yohji Matsufuji