Canon Kabushiki Kaisha

Shigeru Sugita

Tadashi Sato

Noboru Koumura

Yoshihiko Hirose

Kiyoshi Okamoto

Motofumi Konishi

Takeshi Sekiya

Takashi Naba

Yasutoshi Sugita

Masami Amemiya

Yuji Morishige

Yoshiyuki Nakajima

Masaaki Sato

Masaki Nakano

Norifumi Miyake

Tsuyoshi Moriyama

Mitsushige Murata

Koichi Murakami

Yoshinori Isobe

Masatoshi Yaginuma

Yasuo Fukazu

Naoki Manabe

Hiromichi Tsujino

Masashi Yahara

Satoshi Choho

Mitsuru Amimoto

Kazuo Ohtani

Yoshiko Hirose

Toshiko Moritani

Noboru Kohmura

A communication system that can quickly perform the processing of the data re-transmission when error occurs in the data. The communication system includes an automatic original feeder and an image reader that transmit and receive data simultaneously. A CPU provided in the automatic original feeder determines error of reception data. The CPU adds the result of the determination to transmission data being transmitted to the image reader. One of the automatic original feeder and the image reader acts as a slave, and the other acts as a master.

Communication system, communication control method, and program for implementing the method

An original reading apparatus with an original feeding apparatus pivotally connected thereto, including a detecting device for detecting the opened state and the closed state of the original feeding apparatus, and a controller for rendering a part or the whole of the original feeding apparatus operable, on the basis of the result of the detection by the detecting device.

Original reading apparatus with openable and closable state and control based thereon

There is provided a punching device including: a die member having a plurality of die holes formed therein; a plurality of punch members which are caused to advance into the die holes to punch holes in a member to be punched; an operating member having cam portions formed along a direction intersecting the direction of advancement of the punch members, the operating member being moved along the direction intersecting the direction of advancement of the punch members to cause by a conversion function of the cam portions the punch members to advance into the die holes; and a drive unit for selectively causing advancement of the plurality of punch members by changing the direction of movement of the operating member. In the punching device, each of the cam portions has a straight groove and a cam groove for performing the conversion function, and when the operating member is moved in one of opposite directions, at least one of the cam grooves of the cam portions acts on one of the punch members to selectively cause the same to advance.

Punching device, sheet processor having the punching device, and image forming apparatus having the punching device

There is provided an original conveying apparatus for conveying an original to an image reading section of an image forming apparatus, which is capable of preventing the number of times of writing to a nonvolatile storage medium that stores a correction value for the light emission amount of an optical sensor from exceeding a limited number of times even when adjustment of the light emission amount of the optical sensor is carried out frequently, reducing as far as possible the number of times of writing data to the storage medium that can store such data a limited number of times, thereby eliminating the occurrence of inconvenient situations such as it being impossible to maintain proper output processing, and lengthening the lifetime of the storage medium. Writing of the correction value for the light amount of the light-emitting section of the optical sensor to an EEPROM is carried out if the correction value has changed by at least a predetermined amount relative to the value before adjustment but is not carried out if the correction value has not changed by at least this predetermined amount relative to the value before adjustment.

Original conveying apparatus, light amount adjustment method for light-emitting section thereof, image forming apparatus, control method therefor, storage control device, storage control method, and storage medium

An image formation apparatus has a sheet processor in which the setting of punch action is permitted during a specified period of time, even after image formation is started when the setting of a punch action has been forgotten. When the start key of the image formation apparatus is operated for starting image formation in a situation in which a setting of an action for punching at least one hole in a sheet by a punch setting button is forgotten, an action setting by the punch setting button is permitted during a specified period of time taken after inputting of the start for image formation, so that sheet processing and image formation can be continued without pausing the apparatus.

Image forming apparatus having sheet processor

An image forming system, of the present invention, which has an image forming apparatus for forming an image on a paper sheet in accordance with image data output from a computer includes a plurality of storage units, provided to the image forming apparatus, for storing the paper sheet, a plurality of detecting units for detecting the paper sheet on each of the plurality of storage units, a display unit, provided to the computer for displaying a detection result from each of the plurality of detecting units, an input unit, provided to the computer, for inputting an instruction for selecting the storage unit, and a control unit, provided to the image forming apparatus, for selecting the storage unit in accordance with the instruction input from the input unit. With this arrangement, the operator of the computer can detect the sheet storage status of the storage unit while staying in front of the computer, thereby selecting a desired storage unit.

Image forming system in which image processing apparatus is connected to

A sheet processing device which is mounted on an image forming apparatus having a both-side copy mode of forming an image on each side of a sheet member, including a bin module provided with a plurality of bins for accepting sheet members exhausted from the image forming apparatus, and a processor for taking out sheet members exhausted from the bin and processing the sheet members. When the maximum number of sheets continuously producible per unit in the both-side copy mode for the image forming apparatus is N, and the number of bins is m, the number of bins m is set to satisfy the following relational expression:

Sheet processing device

A recording apparatus photographs document images on a microfilm and photoelectrically reads the document images. The apparatus enables a mode to be selected in which only the reading of document images is executed. In a mode in which only the photographing of images on a microfilm is executed, efficient photographing is possible by making full use of the ability of the photographing device to photograph at high speed. A mode in which the document is photographed on the microfilm at the same time that the document is being read can also be selected.

Recording apparatus having different modes for reading and photographing

An image registering method and apparatus for recording an image in a recording medium include reading an image of an original to which a bar code is added, storing the read image of the original in a memory, rotating the image stored in the memory by 90 degrees, detecting the bar code from the image, which has been rotated, and decoding detected bar code information and forming an index file indicating a relationship between the decoded bar code information and a recording address of the image of the original, which is recorded in the recording medium.

Image storing method and apparatus including detecting index information

An image storing method includes the steps of: reading an image of an original including index information to provide image information; recording the image information on a recording medium; reading out the image information recorded on the recording medium; detecting the index information included in the image information which is read out from the recording medium; and generating an index file showing the relationship between the detected index information and a storage address of the image information recorded on the recording medium. Also disclosed is an image storing apparatus which records on a recording medium image information of an original including index information, which is provided from an image reading device. The apparatus includes a recording device for recording the image information on the recording medium; a reading device for reading out the image information recorded on the recording medium; a detecting device for detecting the index information included in the image information read out by the reading device; and an index file generating device for generating an index file showing the relationship between the index information detected by the detecting device and a storage address of the image information recorded on the recording medium.

A catridge changer for carrying a cartridge to a utilization position and returning it to its initial position after the utilization thereof has a cartridge containing chamber for containing a number of cartridges therein, a hand member for gripping a selected cartridge, a hand moving device for moving the hand member gripping the selected cartridge to the cartridge containing chamber and the utilization position to carry the cartridge, and a correcting device for correcting the posture of the cartridge gripped by the hand member to a regular posture.

Cartridge auto changer

A retrieval apparatus for automatically retrieving a desired image on a recording medium having an image and information for retrieving the image, wherein a retrieval operation can be performed using various types of recording media. The retrieval apparatus has a card holding section for detachably holding a card storing retrieval data corresponding to a recording medium, and a reader for reading storage information of the card held by the card holding section.

Retrieval apparatus readily adaptable for use with various types of

An information projecting apparatus for selecting one of a plurality of cartridge each containing an information recording medium therein and projecting the information of the recording medium in the selected cartridge has cartride storing device for storing the plurality of cartridges therein, cartridge conveying device for conveying the cartridge selected from the cartridge storing device to a first position or a second position, feeding device for feeding to a projecting portion the recording medium of the cartridge placed at the first position or the second position, and optical device for projecting the information of the recording medium placed at the projecting portion.

Information projecting apparatus

A projection apparatus for selecting one of a plurality of cartridges each of which stores an information recording medium and for projecting information of the information recording medium stored in a selected one of the cartridges includes a first cartridge reception member for holding the cartridge in a first position, a second cartridge reception member for holding the cartridge in a second position, an optical system for projecting information of the information recording medium onto a predetermined position, a detector for detecting the presence/absence of the cartridge in the first and second cartridge reception members, and a retrieval control circuit for controlling the first and second cartridge reception members to cause the optical system to project the information of the information recording medium of the cartridge first detected by the detector.

Projection apparatus

An information projecting apparatus has a plurality of cartridges each containing an information recording medium are stored in a storage section. A desired cartridge in this storage section may be retrieved and transported to a first position. The recording medium in the cartridge placed in the first position is transported to a projecting unit, where the information of the recording medium is projected. When an outer cartridge containing an information recording medium is to be used instead of a cartridge from the storage section, the outer cartridge is disposed at a second position. The recording medium in the cartridge placed in the second position is transported to the projecting unit, and the information contained in the recording medium is projected at the projecting position.

Growing community of inventors

Sayama, Japan

Shigeru Sugita