Canon Kabushiki Kaisha

Makoto Kawarama

Haruyuki Yanagi

Masaya Shinmachi

Tan At Ming

Hiroyuki Saito

Koichi Tanno

Hiroyuki Kinoshita

Tetsuo Suzuki

Masahiro Taniguro

Hiroyuki Inoue

Hitoshi Sugimoto

Takashi Nojima

Hideaki Kawakami

Tsutomu Kawai

Junichi Asano

Shoji Kikuchi

Soichi Hiramatsu

Tetsuhiro Nitta

Makoto Kashimura

Seiji Ogasawara

Yasuhiro Unosawa

Takeji Niikura

Toshiyuki Onishi

Kentaro Ohnuma

In a sheet feed apparatus, a guide member formed by a flexible member is disposed at an aperture for manual sheet feeding provided on an upper surface of a sheet storing means, and sheets are guided to the position below a sheet feed means by the guide member, while underpropping the sheets, whereby the manual sheet feeding can be performed with the simple structure at low costs. Further, a space for the manual sheet feeding and the number of parts can be saved to the minimum.

Sheet feed apparatus, and recording apparatus having sheet feed apparatus

A sheet feed apparatus comprises a sheet stacking means, being able to be installed in and released from the main body of the apparatus, for stacking sheets, a sheet feed roller for feeding the sheets stacked on the sheet stacking means, and plural inclined plane members, disposed at the end of the downstream side of a sheet feed direction of the sheet stacking means, for coming into contact with the sheets fed by the sheet feed roller to separate them, wherein, among the plural inclined plane members, the height of the inclined plane member corresponding to the sheet feed roller is set to be lower than the height of the other inclined plane members, whereby a sheet feed cassette can be installed/released without any contact with the sheet feed roller, and the sheets can be fed without any fold of their edges.

Sheet feed apparatus and recording apparatus equipped with sheet feed apparatus

A recording apparatus comprises a recording head for forming an image on a recording medium, a carriage for holding the recording head, capable of scanning in a main scanning direction, and a carrying mechanism for carrying the recording medium in a sub-scanning direction, wherein even with shift of the position of the carriage before scanning, scanning of the carriage is carried out after the carriage is located at a start position, or wherein a difference of the start position of the carriage upon each scanning is arranged to be a distance equal to an integral multiple of one period of phase of motor.

Recording apparatus and recording method

A slit extending from a waste ink inlet position (indicated by a cross mark) in one direction is formed in a waste ink absorber of the waste ink tank. Thereby, the leakage of waste ink from a waste ink storage is avoidable by the improvement in the waste ink absorbing performance through a simple and inexpensive constitution.

Waste ink tank and ink jet recording apparatus

An ink jet recording method forms an ink jet image on a recording medium by serially moving an ink jet recording head having a plurality of ink discharge ports arranged in an array along a conveyance direction of the recording medium. The method includes the step of providing a platen having a planar section upstream in the conveyance direction and a slant section slanted downstream in the conveyance direction and in a direction parting from the ink discharge ports, opposed to an array of the ink discharge ports when the ink jet recording head serially moves. The method further includes the step of forming an ink jet image on the recording medium by ink discharge from the ink discharge ports when the ink jet recording head moves at least three times across a same area of the recording medium, a reverse side of which is supported by the platen.

Ink jet recording apparatus

The present invention provides an ink jet recording apparatus comprising a cap member capable of sealing a discharge port for discharging ink and being provided at its bottom with an ink suction opening and an atmosphere communicating opening, an ink absorbing member disposed within the cap member, a suction pump communicated with the ink suction opening, and an atmosphere communicating valve communicated with the atmosphere communicating opening, and wherein areas of the ink absorbing member opposed to the ink suction opening and the atmosphere communicating opening are thinner than the other area and the ink absorbing member abuts against the ink suction opening.

Ink jet recording apparatus and cap for such apparatus

A container for safekeeping an ink jet cartridge is provided with the main body of a container for storing an ink jet cartridge having a recording head unit, and an ink tank unit containing ink to be supplied to the recording head unit, a lid element for covering the inlet and outlet of the main body of the container for storing or removing the ink jet cartridge, an elastic cap member provided in the main body of the container for covering the recording head unit. This container for safekeeping an ink jet cartridge comprises a rib arranged on the inner wall surface of the lid element for exerting pressure on the recording head unit of the ink jet cartridge to press it to the elastic cap member; and a recess arranged on the inner wall surface of the main body of the container in a position corresponding to the location where the elastic cap member is arranged. In this way, it is possible to cap the recording head appropriately in the container to provide a highly reliable safekeeping of the ink jet cartridge, and at the same time, to store and safekeep the ink jet cartridges for monochromatic use and color uses exhangeably.

Container for safekeeping ink cartridge

A recording apparatus capable of making the image formation without reduction in recording quality is embodied. The recording apparatus comprises holding means for detachably holding a recording head for forming image on the recording medium, and positioning means for positioning the recording head at a predetermined position of the holding means in mounting the recording head on said holding means, characterized in that the positioning means has a first fitting meand for restraining the recording head in a first direction, and a second fitting means for restraining the recording head in a second direction, wherein restraining means is provided for fitting the second fitting means prior to the first fitting means in mounting the recording head on the holding means.

Recording apparatus with an ink tank useful for having said recording

This invention provides a discharged ink treating method for destroying or dispersing ink deposit created on a discharged ink receiving portion side, by the use of a mechanically operated member. A method of treating discharged ink from an ink using portion using liquid ink has the step of destroying or dispersing ink deposit created in a discharged ink path along which the discharged ink passes from the ink using portion to a discharged ink receiving portion and on the discharged ink receiving portion side, by the use of a mechanically operated member.

Discharged ink treating method, recovery device for carrying out the

An ink jet recording apparatus having an image recording area for performing image recording onto a recording medium includes a head holding portion for holding an ink jet recording head, a platen, and a recording medium exhausting device. The platen has planar and facial sections. The planar section supports the recording medium opposed to the ink discharge ports in the image recording area. The facial section is disposed downstream of the image recording area with respect to a conveyance direction of the recording medium, and extends in a direction away from the ink discharge ports toward the conveyance direction. The planar section and the facial section are continuous, and the angle between the extension of the planar section and the facial section is from 3.7 to 7.5 degrees. The recording medium exhausting device, disposed downstream of the facial section of the platen in the conveyance direction, exhausts the recording medium from the recording area by guiding the recording medium from the extension of the planar section of the platen in a direction closer to the facial section of the platen.

A sheet feeding apparatus includes a discharge rotary body, a pinch rotary body, a drive transmission rotary body and a regulation member. The discharge rotary body feeds and discharges a sheet from a recording section. The pinch rotary body is disposed facing the discharge rotary body for pinching and feeding the sheet along the discharge rotary body. The drive transmission rotary body has a circumferential surface contacting a circumferential surface of the discharge rotary body with a pressure exerted in a direction different from a straight line drawn between rotary centers of the discharge rotary body and the pinch rotary body, for rotationally driving the discharge rotary body. The regulation member contacts the discharge rotary body when deformation of the discharge rotary body exceeds a predetermined quantity arising due to pressure from the drive transmission rotary body and regulates deformation of the discharge rotary body from exceeding the predetermined quantity.

Sheet feeding apparatus and recording apparatus

A stepping motor control system for a recording apparatus which uses a stepping motor as a driving source of a carriage with a recording head, has a stepping motor driving circuit for exciting the phases of the stepping motor, and a control circuit for transferring data corresponding to a predetermined stepping motor driving curve to the driving circuit, so as to easily obtain a stepping motor driving curve that can suppress vibrations, and the driving curve is formed from an Nth-order specific formula having two or more inflection points.

Stepper motor control system which uses pulse frequencies that vary

A recording apparatus includes a carriage capable of mounting and removing a head member, one side portion provided with a positioning unit for the carriage unit to position the head member, a head holding unit for holding the head member, being relatively movable with respect to the one side portion, an operational unit that engages with the head holding unit to move such head holding unit relatively with respect to the one side portion, a first biasing device for biasing the operational unit in the same direction as that in which the head holding member approaches the one side portion, a stopper arranged on the carriage for regulating the biasing force of the first biasing device in a given position, at the same time, causing the biasing force of the first biasing device not to be exerted on the operational unit in the given position, and a second biasing device for biasing the head holding unit in the direction in which such unit parts further away from the one side portion. With the structure thus arranged, a recording head can be removed from the carriage without any additional power from the user or the like once the operational unit is allowed to move to a given position where the stopper acts. The head removal is reliably executable just by one action.

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Ayase, Japan

Makoto Kawarama