Abstract: A printing apparatus includes a carriage mounted with a printing unit; a first motor configured to move the carriage in a predetermined direction; a second motor configured to move the carriage in the predetermined direction; and a control unit. The control unit executes a first mode in which, when causing the printing unit to perform printing under a first printing condition, the first motor is driven in a first direction and the second motor is driven in the first direction, and a second mode in which, when causing the printing unit to perform printing under a second printing condition different from the first printing condition, the first motor is driven in the first direction and the second motor is driven in the first direction while changing an output ratio between the first motor and the second motor.

Abstract: Judgment image data having a resolution in a direction in which a printing medium is conveyed which is lower than a printing resolution is generated based on input image data. It is determined whether color unevenness is generated in a printed image by comparing the judgment image data with reading data obtained by reading the printed image.

Abstract: A judgment reference data having a resolution lower than a nozzle resolution in a nozzle arranging direction is generated based on input image data. The judgment reference data and read data acquired by reading a printed image are compared to judge whether the printed image has color unevenness or not.

Abstract: A judgment reference data having a resolution lower than a nozzle resolution in a nozzle arranging direction is generated based on input image data. The judgment reference data and read data acquired by reading a printed image are compared to judge whether the printed image has color unevenness or not.

Abstract: Judgment image data having a resolution in a direction in which a printing medium is conveyed which is lower than a printing resolution is generated based on input image data. It is determined whether color unevenness is generated in a printed image by comparing the judgment image data with reading data obtained by reading the printed image.

Abstract: A recording apparatus configured to record on a recording medium by using a recording head, includes a first storage unit that stores input data including a command and a first image data, a reading unit that reads out the command and the first image data stored in the first storage unit by using a first pointer, a generating unit that converts the first image data read out from the first storage unit and generate a second image data, a second storage unit that stores the second image data generated in the generating unit, a determining unit that determines whether an amount of data stored in the first storage unit reaches a predetermined value by using a second pointer, and a recording unit that starts a scan for recording after the determining unit determines that the amount of data stored in the first storage unit reaches the predetermined value.

Abstract: A recording apparatus has a buffer for dividing a storage area into a plurality of areas in a scanning direction of a recording head to record data by allowing a carriage loaded with the recording head to scan data on a record medium, and storing the divided image data in a divided area unit, and includes: a write control unit for controlling write address information about image data in the area unit for data of each color for storage of the image data divided in an area unit in the buffer; a read control unit for controlling for data of each color read address information for a read of image data stored in the buffer; and a record data generation unit for generating record data in a unit of the divided area based on the read image data according to the read address information.

Abstract: A recording apparatus configured to record on a recording medium by using a recording head, includes a first storage unit that stores input data including a command and a first image data, a reading unit that reads out the command and the first image data stored in the first storage unit by using a first pointer, a generating unit that converts the first image data read out from the first storage unit and generate a second image data, a second storage unit that stores the second image data generated in the generating unit, a determining unit that determines whether an amount of data stored in the first storage unit reaches a predetermined value by using a second pointer, and a recording unit that starts a scan for recording after the determining unit determines that the amount of data stored in the first storage unit reaches the predetermined value.

Abstract: A recording apparatus configured to record on a recording medium by using a recording head, includes a first storage unit that stores input data including a command and a first image data, a reading unit that reads out the command and the first image data stored in the first storage unit by using a first pointer, a generating unit that converts the first image data read out from the first storage unit and generate a second image data, a second storage unit that stores the second image data generated in the generating unit, a determining unit that determines whether an amount of data stored in the first storage unit reaches a predetermined value by using a second pointer, and a recording unit that starts a scan for recording after the determining unit determines that the amount of data stored in the first storage unit reaches the predetermined value.

Abstract: An information processing apparatus includes a first USB communication port connecting with a first device, a communication unit configured to send a command requesting information of the first device to the first device and to receive a response to the command from the first device, a first determination unit configured to determine whether the first device can shift to a suspend status, based on the response received by the communication unit, a second determination unit configured to determine whether there is a command to be sent to the first device other than the sent command, and a control unit configured to set the first USB communication port to the suspend status based on the determination of the first determination unit and the determination of the second determination unit.

Abstract: A CPU monitors the state of a printing apparatus, and controls transmission, to the host, of a control signal for controlling the data reception timing from the host.

Abstract: A recording apparatus has a buffer for dividing a storage area into a plurality of areas in a scanning direction of a recording head to record data by allowing a carriage loaded with the recording head to scan data on a record medium, and storing the divided image data in a divided area unit, and includes: a write control unit for controlling write address information about image data in the area unit for data of each color for storage of the image data divided in an area unit in the buffer; a read control unit for controlling for data of each color read address information for a read of image data stored in the buffer; and a record data generation unit for generating record data in a unit of the divided area based on the read image data according to the read address information.

Abstract: A recording apparatus has a buffer for dividing a storage area into a plurality of areas in a scanning direction of a recording head to record data by allowing a carriage loaded with the recording head to scan data on a record medium, and storing the divided image data in a divided area unit, and includes: a write control unit for controlling write address information about image data in the area unit for data of each color for storage of the image data divided in an area unit in the buffer; a read control unit for controlling for data of each color read address information for a read of image data stored in the buffer; and a record data generation unit for generating record data in a unit of the divided area based on the read image data according to the read address information.

Abstract: Disclosed is a printing apparatus in which printing elements used in the printing of each raster can be set at will. The printing apparatus has a carriage equipped with a printhead having a plurality of printing elements arranged in a predetermined direction, and the carriage is made to scan across a printing medium in a direction that intersects the direction in which the printing elements are arranged, thereby performing printing on the medium. The printing elements are divided into a plurality of blocks each consisting of a predetermined number of successive printing elements, print data that has been transmitted in raster form is stored in a receive buffer, and data that has been stored in the receive buffer is divided and stored in a print buffer having a plurality of areas corresponding to the blocks of printing elements.

Abstract: A recording apparatus configured to record on a recording medium by using a recording head, includes a first storage unit that stores input data including a command and a first image data, a reading unit that reads out the command and the first image data stored in the first storage unit by using a first pointer, a generating unit that converts the first image data read out from the first storage unit and generate a second image data, a second storage unit that stores the second image data generated in the generating unit, a determining unit that determines whether an amount of data stored in the first storage unit reaches a predetermined value by using a second pointer, and a recording unit that starts a scan for recording after the determining unit determines that the amount of data stored in the first storage unit reaches the predetermined value.

Abstract: A recording apparatus for recording with use of a recording head having two nozzle arrays arranged side-by-side includes first, second, and third direct memory access (DMA) units, a data converter unit for converting first image data stored in a work buffer into second image data, a record buffer unit for storing the second image data, a latch unit for storing the second image data in a transfer buffer, a buffer reading control table unit, and a DMA control unit for causing transfer processing to be executed by the first, second, and third DMA units based on a flag in the buffer reading control table unit when the image data stored in the work buffer is transferred to the transfer buffer.

Abstract: To reduce the data processing load on a recording apparatus, an information processing apparatus and the recording apparatus cooperate to correct registration errors. The information processing apparatus divides a recording area of the recording apparatus into a plurality of partial areas and makes a first correction on a recording position of image data for each partial area; the correction is made for color data items and in pixels. The information processing apparatus generates image data that conforms to the corrected recording position, as well as setting information for controlling the recording apparatus to record the image data. The recording apparatus makes a second correction on the recording position of the image data in fractions of a pixel based on the setting information generated by the information processing apparatus and controls recording of the image data based on the corrected recording position.

Abstract: A recording apparatus and a signal control method for the recording apparatus capable of high speed data reception suitable for each host apparatus and an improved throughput. The recording apparatus is provided with an interface control block and a CPU, the former transmitting an ACKX signal representative of a completion of data reception from a host apparatus to the host apparatus, and the latter controlling not to output the ACKX signal if it is judged that the ACKX signal is unnecessary, and to output the ACKX signal with an optimum width if it is judged that the ACKX signal is necessary.

Abstract: A DMA controller arbitrates and selects a DMA control information signal received from at least one of a plurality of DMA request blocks and accesses an SDRAM on the basis of the selected DMA control information signal. In the DMA controller, an SDRAM controller detects using a detector the number of possible sequential accesses on the basis of a DMA start address signal, compares using a comparator this number of possible sequential accesses with the burst DMA request number designated by a BSTNUM signal, selects not larger one of the two numbers, and sets the number of sequential DMAs to be actually executed to the selected number. Accordingly, with a simple configuration, sequential access is made possible starting from an arbitrary address.

Abstract: This invention provides a low-cost, economical printing apparatus and printing system. For example, characteristic information of a printhead which is described, printed, adhered, or formed on a printhead or its accessory (e.g., a packaging paper box) in a format identifiable to human or an electronic device is man-machine-interactively inputted to a host or electronically inputted to the host by a barcode reader or the like. The printing apparatus discriminates whether or not a command sent from the host via an interface is a command that includes characteristic information of the printhead, and control is made to write the characteristic information of the print head into a non-volatile memory (EEPROM) in accordance with the discriminating result. The printhead is controlled in accordance with the characteristic information written into the non-volatile memory to execute a print process.