Nec Infrontia Corporation

Nec Platforms, Ltd.

Yukio Yoshioka

Shou Yazawa

In an image data conversion device, color image data is represented in gray scale, a histogram of brightness values is created for the gray-scaled image data, it is determined based on the created histogram which image pattern of a plurality of image patterns the gray-scaled image data is classified into, a range subjected to gamma correction and a range fixed to at least one of a minimum value and a maximum value of gray scale are set for each image pattern, and image data conversion including the gamma correction is performed on the gray-scaled image data.

Image data conversion device, image data conversion method, image data conversion program, POS terminal device, and server

A printer is provided with a roll paper holding portion that holds roll paper without axially supporting the roll paper; a sheet conveying unit that conveys a sheet supplied from the roll paper; a printing unit that executes printing on the sheet; and a roll paper pressing unit that presses the roll paper held in the roll paper holding portion, wherein the roll paper pressing unit is provided with a pressing roller that presses the roll paper and rotates along with the sheet conveyance, and a rotation suppressing portion that suppresses the rotation of the pressing roller.

Roll paper printer

The present invention provides an image data conversion device that can convert color image data to black-and-white image data suitable for a background image. One example embodiment of the present invention is an image data conversion device that represents color image data in gray scale to convert the color image data to black-and-white image data and that includes determination means for determining whether or not the black-and-white image data is data used for a background image; and image data conversion means for converting the color image data to black-and-white image data using brightness values ranging from a background image minimum brightness value to a maximum brightness value when the black-and-white image data is data used for a background image.

Image data conversion device, image data conversion method, image data conversion program, computer, POS terminal device, and server

A fixed blade support device includes a biasing member and a fixed blade support member (). The fixed blade support member () includes a base surface portion (), an upright surface portion (), and a retainer portion (). The upright surface portion () extends from the base surface portion () in a biasing direction so as to close a rear side of a root portion of a fixed blade () on an opposite side to a blade edge portion thereof, and is configured to prevent the fixed blade () from being disengaged in a direction of engagement with a movable blade. The retainer portion () extends from the upright surface portion () so as to cover the root portion of the fixed blade (), and is configured to prevent the fixed blade () from being disengaged in the biasing direction.

Stationary blade support device configured so that stationary blade is not deformed, paper cutting device with stationary blade support device, and printer with paper cutting device

A plurality of ribs are provided on a cut paper discharge guide and an upper cover which define a discharge port for discharging a cut paper. The ribs hold a cut paper in width direction. Even if a cut paper having a high degree of curl is supplied when a roll diameter of a roll paper is reduced, it is possible to prevent a paper jam such as falling or clogging of the cut paper. It is desirable that the ribs provided on the cut paper discharge guide and the upper cover are disposed in an alternate pattern along the width direction of the discharge port. This arrangement is particularly effective in a printer having an inclined paper passage.

Printer, cut paper discharge mechanism used for printer, and paper jam prevention method

A movable blade used for a sheet cutting device to be mounted to a printer for performing printing on a sheet such as roll paper and a label sheet to automatically cut to a printed sheet. The movable blade is configured to cut the printed sheet by engaging with a fixed blade . The movable blade has a pair of guide portions () subject to ,after punching a processing of removing a corner portion of an outer edge portion on a punching rear side (Pr).

Movable blade not causing abrasion of fixed blade over long period of time, sheet cutting device provided with movable blade, and printer provided with sheet cutting device

In order to cope with a change in design between a printer having a hip down design specification (first specification) and another printer having a hip up design specification (second specification), each of a lower frame and an upper frame has a structure common to both of the specifications. The lower frame and the upper frame are coupled to each other by a hinge structure removably attached to the lower frame and the upper frame. The hinge structure is selected from a first hinge structure and a second hinge structure. By changing the hinge structure from the first hinge structure to the second hinge structure and vice versa, the height of a hinge center can easily be changed.

Electronic apparatus

Disclosed is a printer including a transverse tension sensor for detecting that a sheet being discharged has deviated in a paper width direction orthogonal to a discharging direction. The conveyance of the sheet is stopped based on a detection signal of the transverse tension sensor.

Printer capable of preventing paper jam

Provided is a movable blade including, at a part including a movable blade leading edge which engages with a stationary blade, a blade edge portion which is thinned toward the movable blade leading edge. The blade edge portion is formed by shaving.

Movable blade not impairing durability of stationary blade, paper sheet cutting device with movable blade, and printer with paper sheet cutting device

A printer including a lower frame on which roll paper is loaded, a cutter section mounted above the lower frame for cutting the roll paper on which printing is made, and a cover that allows a front of the lower frame to be opened and closed is provided. A slope portion for causing paper dust or a slip of paper, which falls from the cutter section, to slip down toward the front of the lower frame is provided at a portion of the lower frame below the cutter section. The cover is provided with a pocket portion for receiving the paper dust or the slip of paper slipping down on the slope, and the pocket portion is adjacent to the lowest portion of the slope portion when the cover is closed.

Printer

A printer according to the present invention selectively comprises, a cutting configuration for a receipt printer for printing a receipt and a cutting configuration for a ticket printer for printing a ticket, as a cutting configuration for cutting a printed part of the paper roll. The cutting configuration for the receipt printer includes a fixed blade mounted to the upper frame and a movable cutter unit mounted on the lower frame to oppose the fixed blade through the paper roll to be driven by a driving source to cut the paper roll. The cutting configuration for the ticket printer includes a hand cutter mounted to at least one of the upper frame and the lower frame.

Printer selectively having configurations for receipt printer and for ticket printer

In a printer which prints on a roll paper transported toward a discharge port and cuts the roll paper, an exchangeable lower cover is attached to the printer. The exchangeable lower cover defines a lower edge of the discharge port. A change of height of the discharge port is allowed by exchanging the exchangeable lower cover for another one. Hereby, it is possible to change specifications between one for holding a printed slip and the other for allowing the printed slip to fall freely. In the former specification, a brush provided at a periphery of an upper edge of the discharge port is in contact with a lower cover. On the other hand, in the latter specification, the brush is in distant from another lower cover.

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Kawasaki, Japan

Yukio Yoshioka