Seiko Epson Corporation

Satoshi Nakajima

Akira Koyabu

Yuji Takiguchi

Toru Takami

Hiroaki Hosomi

Akio Nomura

Yoshiharu Matsumoto

Yoshinao Miyata

Masahiro Minowa

Naoki Kobayashi

Tadashi Furuhata

Kohei Osawa

Toshiaki Kori

Hiroshige Owaki

Tomoaki Takahashi

Haruki Ito

Naohiko Koakutsu

Yoshitaka Iijima

Hideo Imai

Hideo Miyasaka

Kazutoshi Goto

Satoru Imai

Satoshi Omoto

A physical quantity sensor includes: a physical quantity sensor chip which detects a physical quantity and generates an electrical signal; a package which has an internal space and accommodates the physical quantity sensor chip in the internal space; and a first wire which connects the package and the physical quantity sensor chip together. The physical quantity sensor chip is moored in the internal space by the first wire.

Physical quantity sensor, electronic device, altimeter, electronic apparatus, and mobile object

A sensor includes: a substrate on which an active chip including a semiconductor circuit is disposed; and a passive chip including an acceleration sensor, and a thick portion and a thin portion, the thick portion being disposed on the substrate so as to be in contact therewith. An active chip terminal is disposed on the active chip. A passive chip terminal is disposed on the passive chip at the thin portion. The passive chip terminal and the active chip terminal face each other and are connected via a bump.

Sensor and method for manufacturing sensor

When printing a first line, a control device controls energizing heat elements corresponding to pixels where a dot is formed on a second line that is printed continuously. A control device of a thermal head having a plurality of heat elements arranged in a line includes: an acquisition unit that acquires information of pixels forming dots when printing the second line during line printing of a first line and a second line by continuous line printing by the plural heat elements; and an energization control unit that controls energizing the heat elements during the first energizing period based on image data related to printing the first line when printing the first line, and controls energizing the heat elements in the second energizing period when printing the first line based on the image data related to printing the first line and the pixel information acquired by the acquisition unit.

Control device, printer, and control method of a printer

A thermal printer and control method for a thermal printer is provided. The thermal printer includes a print head and a paper feed mechanism for conveying a print medium past the print head at a controlled print speed based on predetermined print speed control factors. Operations include determining the print speed of the print medium based on the print speed control factors; determining a change, if any, in the print speed; determining if the change in print speed exceeds a predetermined threshold value; and controlling the paper feed mechanism to limit the change in the print speed if the change in the print speed is determined to have exceeded the threshold value. The change of the print speed is decreased for at least one predetermined time when the change in the print speed is determined to have exceeded the threshold value.

Thermal printer, thermal printer control method, and printing system

An optical device comprises a substrate having a first surface and a second surface being opposite the first surface; a light-emitting element having a first center, installed on the second surface; and a light-receiving element having a second center, installed on the first surface. At least a part of the light-emitting element is arranged at a position, overlapping the light-receiving element with respect to a plan view; the light-receiving element, installed after the light-emitting element, has a bonding pad, provided at a position displaced relative to the second center towards a first direction with respect to the plan view; and the first center is provided at a position displaced relative to the second center towards a second direction, being opposite the first direction DR, with respect to the plan view.

Method for manufacturing optical device, optical device, and biological information detector

A thermal head avoids a drop in print quality caused by adhesion of printing chaff. A thermal headthat presses against thermal paper that moves from one side to the other side and prints by melting dye contained in the thermal paper has a glazed layerthat is formed in an area on one part of a ceramic substrateand stores in-flowing heat, and a heating resistorthat is located offset to one side from the center of the glazed layer, selectively heats the thermal paper S pressed in contact therewith, and melts a dye material contained in the thermal paper. A smooth surface P against which the thermal paper S heated by the heating resistorslides is formed to the other side of the glazed layerfrom the heating resistor

Thermal head and printer

A thermal printerand control method for controlling print speed to prevent variation in printing pitch due to frequent slight changes in the print speed following a significant change in print speed. The print speed, which is the speed at which the print medium i.e., paper is conveyed when printing, is controlled based on known print speed control factors. The thermal printer comprises a paper feed mechanism for conveying the print medium at a controlled print speed passed a thermal print head, a print speed control unitfor controlling the print speed of the paper feed mechanism based on the print speed control factors, a print speed change acquisition unitfor determining the change in the print speed over a predetermined time, and a comparison unitfor determining if the change in print speed exceeds a predetermined threshold value. The print speed control unitlimits change in the print speed based on the print speed control factors for a predetermined time after the comparison unitdetermines that the change in print speed exceeds the threshold value.

A head substrate for mounting a driver IC that selectively drives a plurality of driving elements is provided. An input signal wiring pattern electrically connects external connection terminals with the pads in a first pad array and a second pad array. The input signal wiring pattern includes a clock signal line for supplying the clock signal to the driver IC and a logic power line for supplying the logic power to the driver IC. A part of the clock signal line and a part of the logic power line are disposed between the first pad array and the second pad array.

Head substrate and thermal head substrate

A liquid ejecting head which includes a flow passage forming substrate that has pressure generating chambers which communicate with nozzles capable of ejecting a liquid, pressure generating elements which apply pressure to the pressure generating chambers in order to eject the liquid from the nozzles, lead electrodes that supply electric signals to the pressure generating elements, wiring substrates that supply the electric signals to the lead electrodes, and a supporting member that supports the wiring substrates so as to raise the wiring substrates from a surface of the liquid ejecting head having the lead electrodes provided thereon.

Liquid ejecting head and liquid ejecting apparatus

A liquid injecting head includes a flow path forming substrate in which a pressure generating chamber communicated with a nozzle opening that injects liquid is formed, a pressure generating element that is formed so as to apply pressure to the pressure generating chamber for injecting the liquid, a lead electrode that is connected to the pressure generating element, a wiring substrate having flexibility that is connected to the lead electrode, and a support member that is bonded to the wiring substrate. A fixing opening formed by perforating the wiring substrate in the thickness direction is disposed, and the wiring substrate and the support member are bonded together through an adhesive agent disposed inside the fixing opening.

Liquid injecting head, method of manufacturing liquid injecting head, and liquid injecting device

High print quality from a thermal printer is maintained while the print speed is decreasing without producing white streaks or uneven print density by controlling the hysteresis coefficient of the thermal print headbased on the energizing history of the thermal print headand print speed control factors used for determining print speed, which is the speed at which the paper is advanced while printing. The thermal printer, comprises a hysteresis coefficient setting unitfor setting a hysteresis coefficient for the print head based on the energizing history of the thermal print headan energizing time calculation unitfor calculating the energizing time during which drive signals are to be applied to the thermal print headfor printing based upon the hysteresis coefficient set by the hysteresis coefficient setting unit; a printing control devicefor generating the drive signals to be applied to the print head in response to the energizing time calculated by the energizing time calculation unit; a print speed determination unitfor determining the change in the print speed and when the print speed is decreasing; and a coefficient changing unitfor changing the hysteresis coefficient when a change in print speed occurs causing the print speed to decrease. Preferably the coefficient changing unit changes the hysteresis coefficient to a value greater than the hysteresis coefficient value used immediately before deceleration.

Thermal printer and thermal printer control method

A control method and apparatus for a thermal head capable of printing two colors applies thermal history control using a simple circuit configuration. The thermal head control apparatus has a print data processing unit and a drive control circuit . The print data processing unit has a first command processing function for converting first color data to a first and second stage energizing commands, a second command processing function for converting second color data to a second stage energizing command, a first line buffer for storing first stage energizing commands, and a second line buffer for recording second stage energizing commands. The print data processing unit selectively outputs energizing commands from the first line buffer and energizing commands from the second line buffer . The drive control circuit has a print buffer and history buffer , and energizes the heating elements of the thermal head based on energizing commands determined by a comparison of content stored to the print buffer and history buffer

Thermal head control method and control apparatus

The present invention provides in a line thermal printer for producing different colors in a print medium according to a level of heat energy applied to the print medium: storage buffers B to B having a plurality of areas for storing a line of print pixel data according to the number of plural heating elements for forming print pixels; a control circuit for identifying whether the printer is set to a monochrome mode or a multicolor mode; a CPU for storing to the storage buffers B to B the next line of print pixel data to be printed and one or a plurality of lines of print pixel data printed immediately before (when the printer is set to the monochrome mode), and storing to the storage buffers B to B at least a next line of print pixel data of each color to be printed when the printer is set to the multicolor mode; and a drive data generator for outputting data determining the drive time of each drive circuit of the heating elements based on data stored in the storage buffers. Thus the present invention can provide a line thermal printer capable of switching between monochrome and multicolor printers, and accomplishing high quality monochrome printing with consideration given to a printing history, and also printing in multiple colors.

Thermal printer and heat history control method

A paper termination detecting apparatus for detecting an amount of a paper roll that is below a predetermined amount of paper, having: a detecting lever including a detecting piece being movable within a space of a core part of the paper roll, and a protruding piece spaced a predetermined distance apart from the detecting piece, the protruding piece being allowed to come in contact with a side of the paper roll; and a detecting switch for converting a motion of the detecting lever into an electrical signal when the detecting piece moves into the space of the core part of the paper roll.

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Azumino, Japan

Satoshi Nakajima