Canon Kabushiki Kaisha

Canon Aptex

Canon Finetech Inc.

Masataka Naito

Masakazu Hiroi

Takeshi Honjo

Hitoshi Fujimoto

Kenji Kobayashi

Koichi Murakami

Tadayuki Kitajima

Akimaro Yoshida

Jun Saito

Hironori Shido

Yuji Takahashi

Tomohito Nakagawa

Masatoshi Ikkatai

Tsutomu Harada

Yoshinori Isobe

Kimiaki Hayakawa

Katsuaki Hirai

Kazuhiro Matsuo

Katsumi Sugiyama

Tatsuya Fukushima

Takefumi Tamura

Toshiyuki Asakawa

Toshiaki Murayama

Tsuyoshi Mikoshiba

Manabu Inoue

Noriyoshi Ueda

Yoshihiko Kitahara

Nobutaka Uto

Mitsuhiro Mukasa

Yuji Morishige

Takashi Saito

Masanori Yamada

Hiroshi Tanioka

Norifumi Miyake

Tadashi Ishikawa

Tatsuo Takeuchi

Makoto Kitahara

Yutaka Inoue

Hiroshi Satomura

Hideaki Kishida

Seiichiro Adachi

Yoshitaka Ogino

Yuichi Watanabe

Sachiko Naito

A printer includes an ink jet head, a recovery unit, a moving unit, a conveying unit and a cover. The ink jet head performs printing on a printing medium and has an ink ejection port on an ejection port forming surface. The recovery unit is used for a recovery process for maintaining an ink ejection state of the ink jet head in a good condition. The recovery unit includes a cap for covering the ejection port forming surface, a wiping member for wiping the ejection port forming surface, and an absorbing member for receiving ink ejected from the ejection port of the ink jet head. The moving unit moves the recovery unit to a position where the recovery unit faces the ink jet head and to a position where the recovery unit does not face the ink jet head, the ejection forming surface of which is oriented toward the printing medium. The conveying unit conveys the printing medium to be printed by the ink jet head. The cover contains the ink jet head and the recovery unit. The cover is arranged to be opened so that a conveying path of the conveying unit appears and to be closed to cover the conveying path.

Recovering apparatus for recovering a status of an ink jet recording head

In a recovering apparatus for recovering ink ejecting ports forming a plane of an ink jet head, an ink absorbing member is disposed inward of a cap and proximate to the ink ejecting ports, facing the ink ejecting ports at a predetermined distance therefrom. Large ink droplets or water droplets adhering to the ink ejecting ports are then absorbed in the absorbing member. Thereafter, the plane of the ink jet heads with the ink ejecting ports is cleanly wiped by a wiping member, thereby preventing scattering of ink droplets or water droplets away from the ink ejecting ports. A trough is located adjacent to each head, and the recovering apparatus is disposed with respect to the trough so that a distance between the recovering apparatus and the ink jet head can be reduced, thereby permitting a compact arrangement of the recovering apparatus and the ink jet head.

A printing medium feeding apparatus comprises a conveying belt, on which a roll-shaped printing medium is placed with the lower surface of the roll being in contact therewith to unwind the outer periphery of the roll. With the arrangement, setup of the roll to the feeding apparatus is completed easily by only placing the roll onto the conveying belt, as compared with a construction in which the center of a roll is rotatably supported. It is also possible to omit or simplify a transmission mechanism such as a train of reduction gears that is necessary for the case of central driving. Further, it is also possible to feed a constant amount of length at a constant drive speed irrespective of radius of the roll.

Printing medium feeding apparatus using a specialized conveyor belt to

A printing apparatus is capable of freely selecting a plurality of sheet feeding units each having a different controlling method. It is discriminated as to which one among plural kinds of sheet feeding units is fitted, and printing and a motor for a sheet feeding-unit are controlled based on the result of the discrimination from an output from a sensor disposed on the sheet feeding unit. Especially, in the case that a roll shaped paper feeding unit is fitted, it is judged that a printing medium reaches the position where printing can be started when a TOF sensor detects black color, and in the case that a cut sheet feeding unit is fitted, it is judged that the recording medium reaches the position where printing can be started when the TOF sensor detects white color.

Printing apparatus and printing method for use with rolled sheet and cut

The present invention provides a sheet convey apparatus with a sheet stacking plate, supply roller for conveying a sheet from the sheet stacking plate, a separating device for separating or supplying the conveyed sheet to a treatment portion, a conveyer for conveying the sheet on the treatment portion, a discharger for discharging the sheet from the treatment portion onto the sheet stacking plate again, and an apparatus body cover. The sheet stacking plate cooperates with the cover to form a substantially horizontal sheet stacking surface and is arranged immediately above the conveyor.

Sheet convey apparatus with horizontal sheet stacking plate above convey

The present invention provides an original feeding apparatus comprising first original feeding means for directing an original to an original reading station from one side thereof in an original-stationary scanning mode in which the original is read while fixing the original at the original reading station, and second original feeding means for directing then original to the original reading station from the other side thereof in an original-through scanning mode in which the original is read while shifting the original along the original reading station.

Original feeding apparatus with rotary conveyor that releases original

The present invention provides an image forming system having an original-stationary scanning mode and an original-through scanning mode characterized by control means for more shortening a sheet supply distance in the original-through scanning more than that in the original-stationary scanning mode.

Image forming system with original feeding apparatus

A copying apparatus has a recirculating document feeder; an exposure device for scanning and exposing the fed document sheets fed onto the document table by the document recirculating device; an image forming device for forming the images on the scanned and exposed document sheets; and a sheet receiving device for receiving and storing the recording medium sheets carrying images formed by the image forming device. The copying apparatus provides a first selecting device for selecting one of a first exposure mode in which the document recirculating device temporarily stations the document sheets on the document table while the exposure device is moved to scan and expose the stationary document sheets and a second exposure mode in which the document recirculating device continuously moves the document sheets on the document table to cause the document sheets to be scanned and exposed; a second selecting device for selecting one of a first receiving mode in which a set of recording medium sheets corresponding to the stack of documents are received and stored in each of a plurality of trays and a second receiving mode in which each of the trays receives and stores a plurality of recording medium sheets corresponding to one of the document sheets; and a control device for controlling the timing of change of the tray into which sheets are ejected in accordance with the modes selected by the first and second selecting devices.

Image forming apparatus with selective operation in document-fix reading

Printer for electronic computer

A copying apparatus comprises an original support unit for supporting original sheets, an original transport unit for feeding the originals one by one from the original support unit to an exposure unit, and, after the exposure, discharging the originals to the original support unit, a circulation detecting unit for detecting one circulation of the originals by the original transport unit, a counter for counting the number of originals transported by the original transport unit, a copying unit for effecting exposure in the exposure unit, and copying the image of the exposed original onto a sheet, and a storage unit provided with plural storage devices for storing sheets subjected to the copying by the copying unit. The copying apparatus further comprises a control unit adapted to cause the original transport means to effect an operation of a first circulation of the originals, to cause the counter to effect an operation of counting the number of the originals, to cause the copying unit to effect an operation of copying the originals, and to cause the storage unit to store the copied sheets in predetermined storage devices, then to cause the original transport unit to effect an operation of a second circulation of the originals, and to cause the copying unit to effect an operation of copying the originals, and also adapted to vary the assignment of the storage devices for storing the copied sheets according to the counting result by the counter.

Sheet handling apparatus with plural sheet storage units

A sheet original conveying apparatus conveys a sheet original to a reading position where an image on the sheet original is read. The apparatus have a conveying device for intermittently conveying the sheet original so that images on the sheet original may be read while conveying the sheet original without stopping the sheet original on a platen, and control device for controlling the conveying device to convey the sheet original in such a manner that convey intervals for an initial several pages of the sheet original become greater than a normal convey interval for the remaining pages of the original sheet.

Sheet original conveying apparatus and image forming apparatus with it

An original feeding apparatus has a first original feeding means for directing an original to an original reading station from one side thereof in an original-stationary scanning mode in which the original is read while fixing the original at the original reading station, and a second original feeding means for directing then original to the original reading station from the other side thereof in an original-through scanning mode in which the original is read while shifting the original along the original reading station.

Original feeding apparatus and image forming system with it

A sheet original feeding apparatus includes a sheet original stacking tray on which sheet originals to be treated are stacked as an original stack; a sheet original separating means for separating and supplying the sheet original one by one from the bottom of the original stack stacked on the sheet original stacking tray; a sheet original feeding path for directing the sheet original separated by the sheet original separating means; a sheet original feeding means for feeding the sheet original directed by the original feeding path to an image reading portion; a sheet original ejecting path for ejecting the sheet original fed by the sheet original feeding means to the sheet original stacking tray; and an auxiliary sheet original feeding apparatus which can be connected to the sheet original ejecting path. When the auxiliary sheet original feeding apparatus is connected, the sheet original ejecting path serves as a bypass for directing the sheet original from the auxiliary sheet original feeding apparatus to the sheet stacking tray.

Sheet original feeding apparatus with detachable auxiliary feeder

A sheet sorting apparatus with a stapler includes a plurality of bin trays which are arranged substantially vertically with predetermined clearances between adjacent bin trays, which are inclined to provide an inclined sheet receiving surfaces and which are independently movable substantially in the vertical direction, wherein the bin trays are so disposed that those ends of adjacent ones of the bin trays which are closer to the sheet inlet are deviated when seen in a direction substantially perpendicular to the sheet receiving surface; bin tray shifting device for moving the plurality of the bin trays stepwisely substantially in the vertical direction to oppose the respective bin trays to a sheet inlet of the sorting apparatus; stapling device, disposed substantially on an extension of the inclined sheet receiving surface and having a stapling head movable to above the sheet receiving surface and an anvil movable to below the sheet receiving surface, for stapling the sheets interposed between the stapling head and the anvil; and a second shifting device for shifting the bin tray immediately above the bin tray opposed to the stapling device in a direction increasing the deviation, wherein the stapling head is moved using a space provided by the deviation, and wherein the expanded clearance is smaller than a height of the stapling head.

Sheet sorter with stapler

Growing community of inventors

Kawasaki, Japan

Masataka Naito