摘要:
An image forming apparatus includes an image forming unit for forming an image on a recording medium, a measurement unit for measuring the density of the image formed on the recording medium, a control unit for determining an operation condition of the image forming unit on the basis of a measurement result from the measurement unit, a storage unit for storing the operation condition determined by the control unit, and a display unit for reading out the operation condition stored in the storage unit at a desired timing, and displaying the readout operation condition.
摘要:
An image recording apparatus for performing image recording on a recording medium by using plural types of recording heads each having a plurality of recording elements constituting an array includes a test pattern forming unit for forming test patterns on the recording medium by using the plural types of recording heads, a reading unit for reading the test patterns recorded by the test pattern recording unit, and a correction unit for correcting drive signals for driving the recording elements in correspondence with the recording elements and types of the recording heads on the basis of data read by the reading unit.
摘要:
An image recording apparatus includes a recording head (1001) in which a plurality of recording elements are arranged so as to form an image on a recording medium, (1002) a device for causing the recording head to print a predetermined test pattern, an image density reading device (1014) for reading the density of the test pattern formed by the recording head, an uneven image density correction device (1020) for correcting conditions for driving the plurality of recording elements so as to make even the density of the image formed in accordance with the result of reading, a recording stabilizing device (1107,1113) for stabilizing a recording operation performed by the recording head, and a control device (1101) for operating the recording stabilizing device before the test pattern is printed and operating the test pattern printing device after the recording head has been stabilized by the recording stabilizing device.
摘要:
An image recording apparatus for recording an image in accordance with input image data supplied thereto using a recording head having a plurality of recording elements arranged thereon. The apparatus includes a sensor for detecting and determining non-uniformity of the densities of the records provided by the respective recording elements, at predetermined timing in image recording operations, and adjusting means for adjusting driving signals applied to the respective recording heads in response to an output of sensor.
摘要:
An image recording apparatus for performing image recording on a recording medium by using plural types of recording heads each having a plurality of recording elements constituting an array includes a test pattern forming unit for forming test patterns on the recording medium by using the plural types of recording heads, a reading unit for reading the test patterns recorded by the test pattern recording unit, and a correction unit for correcting drive signals for driving the recording elements in correspondence with the recording elements and types of the recording heads on the basis of data read by the reading unit.
摘要:
An image recording apparatus using a plurality of recording heads (9C, 9M, 9Y, 9BK) that can prevent black lines from occurring at boundaries of each scanning of the recording heads. The total recorded ink volume at the boundaries is positively reduced so that the black lines and the overflow of ink are prevented. The apparatus includes at least a pair of a dark head (26) for discharging relatively dark ink and a light head (27) for discharging relatively light ink, and separates an input image signal into image signals applied to the dark and light heads using at least two tables (23A, 23B). The two tables, one for edge nozzles of each recording head and the other for the remaining nozzles, separate the input image signal independently so that the total ink volume discharged from the edge nozzles are limited to a relatively small amount. Further, the total volume of inks discharged from the edge nozzles of the recording heads are positively reduced by performing black abstraction processing, UCR processing and black inking processing on the basis of the image signals after the separation by the tables, which image signals are linearly correspond to the ink volume.
摘要:
There is disclosed an apparatus for transmission, reception and recording of an image, such as a facsimile apparatus, capable of correcting the unevenness in density or improper density resulting from fluctuation in the performance of the recording head of the receiving unit, with a limited amount of data transfer. At the start of communication, correction data for uneven or improper density of the recording head are sent from the receiving unit to the transmitting unit. The transmitting unit corrects the multi-value image data to be transmitted, based on the received correction data, and sends the corrected image data after conversion into binary state. The receiving unit receives the binary image data and effects image recording. The time and cost for data transmission can be reduced, as the correction is conducted at the transmitting unit and the data transmission can be made in binary data.
摘要:
An image recording apparatus for recording an image in accordance with input image data supplied thereto using a recording head having a plurality of recording elements arranged thereon. The apparatus includes a sensor for detecting and determining non-uniformity of the densities of the records provided by the respective recording elements, at predetermined timing in image recording operations, and adjusting means for adjusting driving signals applied to the respective recording heads in response to an output of sensor.