Dainippon Screen Mfg. Co., Ltd.

Screen Holdings Co., Ltd.

Other

Toru Kawada

Toshio Tamura

Shiro Kitawaki

Fumihiko Nishida

Kazuma Kan

Arifumi Omoto

Yasuyuki Koyagi

Junichi Nagamine

Ryuzo Tokimasa

Tatsuo Yazaki

Masao Inoue

Tadaaki Tani

Osami Taniuchi

Hideaki Yonetani

Takaharu Yamamoto

Kunio Muraji

Susumu Takahashi

Hiroshi Okamoto

Motonobu Kawabata

Hiroyuki Fujisawa

Hirohisa Tanaka

Makoto Narazaki

Yasuhito Yoshimi

Makoto Urata

Katsuji Oku

Kazushi Kibune

Minoru Komatsu

Takashi Kakihara

A filter manufacturing apparatus includes a printing cell setting unit that sets, based on a predetermined filter pitch and a head resolution, printing cells having an equal number of dot areas in the direction perpendicular to the transport direction of the printing medium, a shift amount calculating unit that calculates shift amounts between the filter pitch and the printing cells in the direction perpendicular to the transport direction of the printing medium, a shift amount determining unit that determines whether shift amounts of the printing cells exceed a unit dot area; and a printing cell complementing unit that complements the shift amounts of the printing cells exceeding the unit dot area by adjusting the number of dot areas included in the printing cells.

Filter manufacturing apparatus and filter manufacturing method

A print-data generating section generates print data in accordance with a high-resolution raster image generated by a high-resolution rasterizing processor. A low-resolution rasterizing processor generates a low-resolution raster image having lower resolution than that of the high-resolution raster image. An overcoating-data generating section generates coating data in accordance with the low-resolution raster image. Overcoating data is handled with low resolution, resulting in less processing time for overcoating than when the overcoating-data is handled with high resolution.

Image processing device for generating coating data, and printing device using the same

An inkjet printer includes an image-forming part, forming an auxiliary layer on a base material by ejecting droplets of auxiliary ink and forming an image on the auxiliary layer by ejecting droplets of image-forming ink, the auxiliary ink changing a dot formation state of droplets of the image-forming ink. In a storage part, a reference table that associates each of a plurality of types of base materials with a proper dot area rate to be used when forming the auxiliary layer is stored. In a dot-area-rate determination part, a dot area rate to be used when forming the auxiliary layer on a target base material is determined as an auxiliary ink dot area rate by referencing the reference table using the type of the target base material. This enables the inkjet printer to form a highly precise image on various base materials.

Inkjet printer and method for forming an auxiliary layer based on medium type

Depending on the lateral width thereof, an image recording material P is stably positioned on a recording drum, employing two positioning pins with an appropriate pitch therebetween. Non-contacting portions prevent any irrelevant positioning pins from coming into contact with the material P. The material P may be transported onto the recording drumwhile one end thereof constitutes an angle U with a rotation axisN of the recording drum. A reference notchfirst fits with a positioning pin. Thereafter, as the aforementioned end of the material P abuts with a positioning pin, accurate positioning occurs. Each positioning pinincludes a tapered portion having a reference taper angleT. When a leading-end clampclamps the aforementioned end, the material P comes in contact with the tapered portion, with a, reduced friction force against the positioning pin, thereby preventing deformation of the material P.

Cylindrical outer surface scanning apparatus

Provided is a drum surface scanner with which punched holes and/or cuts can be formed in a plate which has been correctly defined by position, and the plate can be clamped to a recording drum. When a plate P comes in front of movable pinsi.e., on a hole punch unitside, the upper roller of a conveyor rollermoves down, and conveyor rollersandand conveyor beltsall start rotating in the positive direction. Once the plate P moves out of the range covered by a sensor PHthe movable pinsfollow the tail end of the plate P at a given distance therefrom. When the front end of the plate P reaches the hole punch unitthe movable pinswhich have been chasing the plate P push the tail end thereof to make the front end thereof abut to the hole punch unitAt the same time, based on the movement amount of the movable pinsfrom their original positions to current positions pushing the tail end of the plate P, the plate P is checked for its length Y. Plate conveyance with respect to positioning pinson the recording drumis carried out in a similar manner.

Drum surface scanner and method for plate size check

A punch unit includes punch blocks supported by an arm through support plates. The arm has, arranged thereon, a motor for rotating a drive rod, a detector for detecting rotation angles of the drive rod, and a sensor for detecting a forward end of a recording material. The punch unit is movable by a moving mechanism including support members arranged at opposite ends of the arm, slide shafts and ball screws connected to the support members, and a pulse motor for driving the ball screws through a synchronous belt and synchronous pulleys.

Image recording apparatus

An image recording apparatus for recording an image on a sensitive material mounted on a drum by emitting light beams to the sensitive material. The apparatus includes a cylindrical drum for supporting the sensitive material mounted peripherally thereof, a drive mechanism for rotating the drum with a rotary shaft disposed on an axis of the drum, guide members formed in opposite end surfaces of the drum and extending circumferentially about the rotary shaft, a pair of counterweights movable along each of the guide members, a moving mechanism for engaging each of the counterweights and moving relative to the drum, thereby to move the counterweight along the guide member, and a fixing mechanism for fixing the counterweight to the guide member in time of image recording.

Image recording apparatus with drum balancing

Front end clamps are disposed on the cylindrical surface of a recording drum, and rear end clamps are attached in any of a plurality of positions at the cylindrical surface of the recording drum. A controller controls a front end clamp opening/closing device to open the front end clamps and controls a pair of rollers to feed a plate held on a plate carry-in path. The controller also controls the front end clamp opening/closing device to close the plate fixing portion of the front end clamps to fix the front end of the plate on the cylindrical surface, controls a driving device to rotate the recording drum for a predetermined amount, and controls a rear end clamp attaching/detaching device to attach the rear end clamps to the cylindrical surface to fix the rear end of the plate on the recording drum cylindrical surface.

Drawing apparatus and method of attaching balance weights

Annular grooves are formed on both end surfaces of a recording drum to be rotated, and two balance weights are disposed inside each of the annular grooves. The balance weight is composed of a magnet, and is attracted to the end surface of the recording drum by its magnetic force. The two balance weights are arranged at a predetermined attaching angle such that an unbalance force caused by centrifugal forces developed by a plate and a movable clamp, for example, is canceled. Every time the size and the mass of the plate are changed, the positions of the two balance weights are adjusted, so that forced vibration in the recording drum is restrained.

A recording drum has a clamp groove extending in its circumferential direction formed on its outer peripheral surface. A plurality of front end clamps are attached to the outer peripheral surface of the recording drum. Rear end clamps are attached so as to be movable and so as to be fixable along the clamp groove on the outer peripheral surface of the recording drum. A recording head is disposed ahead of the recording drum, and a clamp driving device is disposed behind the recording drum. The clamp driving device comprises a first driving device for fixing the front end clamps and fixing and releasing the rear end clamps and a second driving device for releasing the front end clamps. The front end clamps and the rear end clamps reliably fix a front end and a rear end of a plate to the outer peripheral surface of the recording drum by a reaction force produced by a spring and a centrifugal force produced by the rotation of the recording drum.

Drawing apparatus having fixing member for clamping material on drum

A conveying unit is disposed so as to be swingable above a recording drum. The conveying unit has a first plate carry-in conveying path and a second plate carry-out conveying path. A punching device is disposed in the plate on the side of a front end of the conveying unit. The plate is conveyed to the punching device through the first conveying path in the conveying unit before being conveyed onto the recording drum. Recording drum positioning holes and printing machine positioning holes are formed at a front end of the plate. The recording drum positioning holes of the plate are respectively fitted on positioning pins provided on an outer peripheral surface of the recording drum.

Drawing apparatus and drawing method

Drawing apparatus having fixing member for clamping material on drum and

An image recording apparatus comprises a temporary storing magazine for temporarily retaining a recorded photosensitive material sheet. The temporary storing magazine stocks the recorded photosensitive sheet received therein from an image recording section while discharging the recorded photosensitive material sheet into an automatic developing machine. Hence, image recording is executed without interruption and parallel to discharge of the recorded photosensitive material sheet into the developing machine, enhancing the capability of the image recording apparatus.

Apparatus for and of recording an image using a photosensitive drum for

An apparatus for composing original films, having register marks on desired positions of a base sheet, by positioning and adhering the original films on the base sheet, the apparatus includes a main frame, a positioning and composing table for supporting the base sheets, film cassettes, a position detecting stage on which one of the original films is placed, an original film carrier for transporting the original film from the film cassette to the stage, a working head which transports the original film from the positioning and composing table to a position where an adhesive is applied so that the original film can be adhered to the base sheet, photoelectrical sensors for detecting the register marks of the original film and measuring the position of the film, a sliding frame movable on the main frame in one direction, and a saddle slidable in a cross direction with the sliding frame to support the original film carrier and the working head.

Growing community of inventors

Kyoto, Japan

Toru Kawada