Seiko Epson Corporation

Katsuhiko Nishizaka

Tsutomu Iwanaga

Hisataka Kugimachi

Masaki Namiki

Kazuya Yoshikaie

Takayuki Shiota

Kiyotaka Nakamura

Hiroyuki Tajima

Daisuke Honda

Mamoru Sakai

Shoichi Nakajo

Yohei Miyagi

Fuminori Hanaoka

A medium feeding apparatus includes a feed roller that feeds media. A separation roller nips the media together with the feed roller to separate it and is rotated in a first direction to feed the media. A motor applies driving torque to the separation roller in a second direction opposite to the first direction. A torque limiter, when rotation torque applied to the separation roller in the first direction exceeds a preset upper torque limit, causes the separation roller to rotate at idle in the first direction independently of the driving torque. During feeding operations, including feeding of first and second media, a controller that controls the motor provides a break period in which the motor is not driven. The break period contains the timing when a rear edge of the first medium leaves a nip position between the feeding and separation rollers.

Medium feeding apparatus, image reading apparatus, and medium feeding method

A multifeed detection device that detects multifeed by using an ultrasonic wave includes an ultrasonic emitting unit and an ultrasonic receiving unit arranged to oppose each other with a medium transport path interposed therebetween; judges occurrence of multifeed of media based on a detection intensity of an ultrasonic wave received by the ultrasonic receiving unit, and a multifeed threshold for judging multifeed of media; and acquires first information that is information relating to adjustment for the multifeed threshold, and second information for specifying that the first information is the information relating to the adjustment for the multifeed threshold, from a calibration sheet holding the first information and the second information.

Multifeed detection device and image reading apparatus

A medium feeding device includes a medium placement portion on which a bunch of media is placed, a feed roller that feeds a lowermost medium of the bunch of media placed on the medium placement portion, a separation roller that is provided at a position facing the feed roller and separates a medium from the bunch of media, and a plurality of restricting portions that are provided on an upstream side of a nip position between the separation roller and the feed roller at an interval in a medium width direction which is a direction intersecting a medium feeding direction and come into contact with leading ends of upper media of the bunch of media excluding at least the lowermost medium such that the leading ends are restricted from coming into contact with the separation roller regardless of whether the separation roller is deformed or not.

Medium feeding device and image reading apparatus

To reduce effort in an operation where an email address which is assigned to a printer is set as the destination of an email in a user terminal, a printing system which performs printing based on an email which is transmitted by a user terminal and which includes a printer which has a recording medium which records information which indicates an email address which is assigned to the printer and provides the email address to the user terminal by means of contactless communication, and a printing control means which executes printing based on printing data which corresponds to an email which is transmitted with the email address set as the destination.

Printing system, user terminal, printer, user terminal control program, and printing method

An image reading apparatus further includes a discrimination unit which discriminates double feeding of a document from a carrier sheet, based on a double feeding detecting sensor (double feeding detecting unit) which detects double feeding of a document, a first detection result (section of L) which is obtained when the double feeding detecting sensor detects a bonding portion of the carrier sheet, and a second detection result (double feeding detection value which is lower than second threshold value) which is obtained when the double feeding detecting sensor detects double feeding.

Image reading apparatus including double feeding detecting unit

When a start button of a scanner is operated in a state where a communication connection has been established with the scanner, then image data generated by the scanner by reading a document is acquired, a run mode is set from a plurality of operating modes including a copy mode and a transfer mode, and a process corresponding to the set run mode is executed on the acquired image data. This makes it possible to realize a plurality of functions of a printer in response to a single start button of a scanner.

Print apparatus including image read apparatus-side communicating section

An image forming apparatus includes an ejection head having a plurality of nozzle arrays arranged in an orthogonal direction to an array direction thereof, a carriage on which the ejection head is loaded, and a moving unit that moves the carriage. The image forming apparatus further includes a control unit that controls the moving unit and the ejection head such that, when flushing is to be performed while the image is formed on a sheet as the carriage reciprocates, a liquid is ejected to an image forming region of the sheet from the plurality of nozzle arrays, the liquid is ejected to a first receiving area from a first nozzle array group disposed adjacent to an outward side, and the liquid is ejected to a second receiving area from a remaining second nozzle array group excluding the first nozzle array group and disposed adjacent to a homeward side.

Image forming apparatus, control method therefor, and medium storing program

When the number of sheets that have been printed has reached the number of sheets guaranteed for printing, a number representing a upper limit of the number of sheets that can be printed, an ink jet printer declines to perform printing with an ink cartridge for which the number of sheets guaranteed for printing has been set, but when the number of sheets printed has not reached the number of sheets guaranteed for printing, performs printing of an image onto a recording sheet S by using the ink cartridge, the ink jet printer determining the number of sheets remaining N on the basis of the number of sheets printed that have been printed, and displaying on a display unitthe number of sheets remaining information display screenincorporating a number of sheets remaining display unitthat causes visual recognition of a relation between the number of sheets guaranteed for printing and the number of sheets remaining.

Printer

An output voltage of a paper-width detector is input while a carriage is moved leftward in a main scan direction. Whether a mounting position of a test element member in the main scan direction falls within a generally horizontal design basis range is determined based on the position of the carriage and reference information. The position of the carriage in the main scan direction is determined from a signal of a linear encoder when a right edge of the test element member is detected in response to a substantial change in the output voltage of the paper-width detector. Whether a mounting position of the test element member in a substantially vertical direction falls within a vertical design basis range is determined based on the mounting position of the test element member in the substantially vertical direction determined from the output voltage of the paper-width detector and the reference information.

Fluid ejection device and mounting position determination method

The invention provides an image printing apparatus including: a printing unit that performs printing on a print target medium; a moving unit that can move in a predetermined main scan direction; an edge-detecting unit that is mounted on the moving unit and outputs, by utilizing photoelectric conversion, a voltage that changes across each edge of the print target medium; a position-detecting unit that detects the position of the moving unit; a reference stage that has one edge and another edge in such a manner that the reference stage has a predetermined reference width therebetween, the reference stage being formed in such a manner that the edge-detecting unit outputs a voltage that changes across each edge of the reference stage; and a calibrating unit that commands the moving unit to move in such a manner that the edge-detecting unit passes through each edge of the reference stage, commands the position-detecting unit to detect the position of the moving unit at a point at which a voltage outputted by the edge-detecting unit changes during the movement of the moving unit as each measured position, calculates a measured width on the basis of the measured positions, and calibrates the edge-detecting unit on the basis of the measured width and the reference width.

Image printing apparatus and method for calibrating image printing apparatus

A recording apparatus comprising a carriage having a recording head including a nozzle array with a plurality of nozzles being capable of reciprocably moving over a recording medium to a main-scanning direction, a recording medium conveying unit that conveys the recording medium to a sub-scanning direction intersecting the main-scanning direction, a first detecting unit disposed upstream than the recording head in the sub-scanning direction, a second detecting unit that detects at least the rear edge of the recording medium downstream than the first detecting unit in the sub-scanning direction, and a recording control unit that causes the plurality of nozzles of the recording head to eject ink onto the recording medium based on recording data as the carriage is reciprocated to the main-scanning direction and that causes the recording medium conveying unit to convey the recording medium by a predetermined amount of conveyance.

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Kitakyushu, Japan

Katsuhiko Nishizaka