Ricoh Company, Ltd.

Tetsuyoshi Nakata

Jun Watanabe

Katsumi Kobayashi

Yasunari Harada

Toshiaki Hosokawa

Hideaki Iijima

Shunsuke Shitaoka

Hiroki Tanaka

Ryuuichi Satoh

Tomoko Fukasawa

Toshihiro Yamashiro

Yoshimitsu Ogura

Shigeru Yoshigai

Tomohiro Shuta

Kazunari Tonami

Atsushi Yokoyama

Kiriko Chosokabe

Seiji Miyawaki

Yuji Ohue

Akiyoshi Nakai

Yuya Mori

Harada Yasunari

Takashi Kokawaji

Tomohiro Shuuta

A position detection apparatus configured to detect a position on a movement surface of a mounted object having the position detection apparatus mounted thereon, includes a moved amount detector configured to detect an amount of movement on the movement surface; a posture detector configured to detect at least a posture of the mounted object on the movement surface; and a position calculator configured to calculate the position of the mounted object, based on the amount of movement and the posture.

Position detection apparatus, droplet discharging apparatus, method for detecting position, and medium

A handheld recording device includes a first face, a second face, a third face pair, a recorder, and a connector. The first face has an opening. The second face is disposed opposite the first face. The third face pair is different from the first face and the second face. One of the third face pair is disposed on one side in a given direction of the second face and configured to be held by a user for recording. The recorder is configured to discharge ink from the opening. The connector is configured to be connected to a cable to receive at least one of power and image data. The connector is disposed at a position closer to the second face than the first face, on another one of the third face pair disposed on another side in the given direction of the second face.

Handheld recording device

A liquid droplet discharging apparatus is movable and includes a plurality of nozzles to discharge a liquid droplet onto a medium according to a first image data section and a second image data section of image data. A moving amount sensor detects a moving amount of the liquid droplet discharging apparatus. A switcher switches from the first image data section to the second image data section based on the detected moving amount.

Liquid droplet discharging apparatus, liquid droplet discharging method, and non-transitory computer readable medium

A droplet discharge apparatus discharges a droplet to form an image on a recording medium while being moved by a user. The droplet discharge apparatus includes a head to discharge a droplet on a recording medium according to image data, a sensor to detect a movement amount of the droplet discharge apparatus in a predetermined period, and a processor. The processor is configured to instruct droplet discharge based on the image data and the movement amount detected by the sensor, determine floating of the droplet discharge apparatus from the recording medium based on information from the sensor, and stop the droplet discharge in response to a determination that the droplet discharge apparatus is floating.

Droplet discharge apparatus and droplet discharge method

A liquid droplet discharging apparatus includes a plurality of nozzles to discharge a liquid droplet onto a medium and a liquid droplet discharging controller to receive image data. The liquid droplet discharging controller controls each of the nozzles to discharge the liquid droplet in an amount defined by the image data onto a target discharging position on the medium, which corresponds to a pixel position defined by the image data. The liquid droplet discharging controller controls at least one of the nozzles to discharge the liquid droplet for a controlled number of times smaller than a number of times N representing an integer not smaller than 2 in an amount greater than the amount defined by the image data onto the target discharging position on the medium. A frequency recorder records the controlled number of times of discharging for each of the at least one of the nozzles.

A droplet discharge apparatus to discharge droplets while moved by a user includes a head to discharge a droplet onto a recording medium, a sensor to detect a movement amount of the droplet discharge apparatus in a predetermined period, and a memory to store determination information indicating whether droplet discharging has been instructed for each pixel of the image data. The droplet discharge apparatus further includes a processor configured to accumulate the movement amount to calculate a total movement amount of the droplet discharge apparatus; instruct droplet discharging from the head based on the total movement amount and the image data; instruct droplet discharging only for an unprinted pixel for which the determination information indicates that droplet discharging has not been instructed; and rewrite the determination information of the unprinted pixel to indicate that droplet discharging has been instructed, based on a predetermined condition.

An information processing apparatus includes circuitry that acquires a measured temperature of a target area from a measuring device, detects whether the measured temperature changes during a predetermined time period, determines whether a human exists in the target area based on the measured temperature and the detection result indicating whether the measured temperature changes during the predetermined time period, measures a duration of time in which the determination result indicating that the human exists in the target area and the detection result indicating that there is no temperature change are kept generated, and determines that there is no human in the target area even when the determination result indicates that the human exists, if the measured duration of time reaches a certain time period, the certain time period being modifiable based on history information indicating a previously generated determination result indicating whether the human exits in the target area.

Information processing apparatus, human presence determining method, and recording medium storing determining program

A printer is provided which includes: a recording head having multiple nozzles; two or more sensors that read a print medium into an image thereof and calculate a total moving distance based on the image; an instruction unit that instructs a timing for discharging liquid droplets from one or more of the nozzles; a sensor position calculator that calculates a position of each of the sensors; a nozzle position calculator that calculates a position of each of the nozzles; an acquisition unit that acquires image data of a specified area within an image to be printed; a determination unit that determines whether or not to discharge the liquid droplets from each of the nozzles; and a transmitter that transmits data of one or more of image elements and information on one or more of the nozzles determined to discharge the liquid droplets to a controller.

Printer, printing system, and method of printing

A printer including an optical moving amount calculator, an angle calculator, and a moving amount corrector is provided. The optical moving amount calculator calculates a moving amount of the printer or an object to be irradiated after a movement thereof, based on a difference in image data generated before and after the movement. The image data is generated by emitting light to the print medium or the object and receiving light reflected therefrom. The angle calculator calculates a deviation angle of an installation angle of the optical moving amount calculator installed in the printer, based on a calibration moving amount of the printer or the object after a calibration movement thereof that is a parallel translation. The moving amount corrector corrects the moving amount of the printer after the movement thereof, based on the calculated deviation angle of the optical moving amount calculator.

Printer, method of printing, and non-transitory recording medium

A recording apparatus includes a head unit, which includes a driver, and a recording data transmitter that transfers recording data to the head unit via a signal line. The recording apparatus further includes a switching unit in the head unit that switches a driving signal applied to the driver between conductive and nonconductive states based on the transferred recording data, a partition signal output unit in the recording data transmitter that outputs a partition signal that partitions a data signal of the recording data to the head unit in response to switching by the switching unit, and a data selector in the head unit that selects data to be discarded from the transferred recording data based on the partition signal.

Recording apparatus and recording apparatus control method

An image recording apparatus that includes a recording head controller that transfers image data and a driving waveform to a recording head in conjunction with position information of the recording head. The recording head controller includes a driving waveform storage unit that stores multiple driving waveform data, a number of driven nozzles calculator that calculates the number of nozzles driven simultaneously from the image data, and a driving waveform selector that selects one driving waveform data from the multiple driving waveform data based on the calculated number of driven nozzles and a predetermined threshold value of the number of driven nozzles.

Image recording apparatus, image recording method, and recording medium storing a program for recording image

An information processing apparatus includes a receiver configured to receive a packet via a communication line, an operating processor configured to suspend an operation thereof when the information processing apparatus is in an energy saving mode, a first storage configured to store the packet received by the receiver, a determining unit including a table in which different operations of the operating processor are recorded in association with different patterns of packets and configured to determine whether to restart the operating processor when the information processing apparatus is in the energy saving mode based on a pattern of the packet stored in the first storage and the patterns of the packets in association with the operations of the operating processor recorded in the table, and a power manager configured to supply power to the operating processor based on a result determined by the determining unit to restart the operating processor.

Information processing apparatus and method for saving energy in an image processing apparatus

An image forming apparatus is disclosed that forms an image based on a control signal from an image processing controlling unit that processes input image information into image data. The apparatus includes a carriage that moves in a main scanning direction in accordance with the control signal; a conveyance unit that conveys a recording medium in a sub-scanning direction; an output detection unit that detects motor outputs of the carriage at any plural points when the carriage moves at a constant speed; and a jamming determination unit that compares an average value of the motor outputs of the carriage between the plural points with a predetermined tolerance to determine a conveyance failure.

Image forming apparatus, image forming system, image forming method, control program for eliminating conveyance failure, and information recording medium having recorded thereon control program for eliminating conveyance failure

An image forming apparatus, an image forming method, and a control program therefor. The apparatus includes an image processing control unit to process image information sent from an external device, a carriage to move in a main scanning direction according to a control signal sent from the image processing control unit and having a nozzle to discharge an ink onto a recording medium, a conveyance unit to convey the recording medium in a sub-scanning direction, and a conveyance failure detection unit to detect a status of the recording medium. The image processing control unit identifies a type of a conveyance failure among a plurality of types of conveyance failures based on the status of the recording medium output from the conveyance failure detection unit and sends a conveyance failure correction signal to perform an operation for retracting the carriage to a predetermined or desired position in the main scanning direction.

Growing community of inventors

Kanagawa, Japan

Tetsuyoshi Nakata