Abstract: An inkjet recording apparatus includes: a control device that controls feeding of the conveyance belt so that a recording medium is conveyed at a pitch of a prescribed feeding amount in a feeding direction, and establishes an origin on the recording medium based on a detection of a starting point arranged on the conveyance belt, and controls driving of the inkjet head so that test dots of an amount equivalent to one round of the conveyance belt are printed on the recording medium at the pitch, from the origin; and a correction device that corrects the feeding amount of the conveyance belt to a corrected feeding amount corresponding to a feeding position of the conveyance belt based on the measurement results for an inputted printing space, wherein the control device causes an ink droplet to jet to the recording medium according to the corrected feeding amount.

Abstract: An inkjet recording apparatus includes: a control device that controls feeding of the conveyance belt so that a recording medium is conveyed at a pitch of a prescribed feeding amount in a feeding direction, and establishes an origin on the recording medium based on a detection of a starting point arranged on the conveyance belt, and controls driving of the inkjet head so that test dots of an amount equivalent to one round of the conveyance belt are printed on the recording medium at the pitch, from the origin; and a correction device that corrects the feeding amount of the conveyance belt to a corrected feeding amount corresponding to a feeding position of the conveyance belt based on the measurement results for an inputted printing space, wherein the control device causes an ink droplet to jet to the recording medium according to the corrected feeding amount.

Abstract: A belt conveying device includes: at least three rollers, about which an endless belt to convey an object, is entrained, including an oscillation roller having a rotation shaft, whose one end is fixed and another end is oscillatably supported; a belt detection sensor provided adjacent to a side edge of the belt, which detects presence of the belt; and a belt skew controller which controls the oscillator to oscillate the oscillation roller according to a preset control value in a predetermined range to correct skew. The oscillator moves a rotation center of a movable edge of the oscillation roller along a tangential line of an ellipse having elliptical focuses corresponding to rotation centers of rotation shafts of the two rollers, other than the oscillation roller, positioned respectively in upstream and downstream of and adjacent to the oscillation roller in a belt conveyance direction.

Abstract: A belt conveying device includes: at least three rollers, about which an endless belt to convey an object, is entrained, including an oscillation roller having a rotation shaft, whose one end is fixed and another end is oscillatably supported; a belt detection sensor provided adjacent to a side edge of the belt, which detects presence of the belt; and a belt skew controller which controls the oscillator to oscillate the oscillation roller according to a preset control value in a predetermined range to correct skew. The oscillator moves a rotation center of a movable edge of the oscillation roller along a tangential line of an ellipse having elliptical focuses corresponding to rotation centers of rotation shafts of the two rollers, other than the oscillation roller, positioned respectively in upstream and downstream of and adjacent to the oscillation roller in a belt conveyance direction.

Abstract: An inkjet recording apparatus includes: exchangeable first and second ink cartridges; a recording head which jets ink to a recording medium; an intermediate tank which receives the ink from the ink cartridge and supplies the ink to the recording head; a detecting sensor which detects whether ink residual quantity of an ink cartridge is not more than predetermined quantity based on ink quantity in the intermediate tank; a switching section which, if the ink residual quantity is not more than the predetermined quantity, switches the ink cartridge for supplying the ink to the intermediate tank; a first detector which detects the reset of the first ink cartridge; a second detector which detects the reset of the second ink cartridge; and a controller which, if the first ink cartridge is reset, controls the switching section to switch the second ink cartridge to the first ink cartridge, for supplying the ink.

Abstract: The present invention concerns an image recording apparatus, which records images on a roll-type recording medium. The image recording apparatus includes a recording device to record an image on a recording medium by emitting ink onto the recording medium; a cutting member to cut the recording medium after the recording device records the image, the cutting member being disposed downstream in respect to the recording device in a conveying-direction of the recording medium; a second conveyance member to convey the recording medium, the second conveyance member being disposed at a position located between the recording device and the cutting member in the conveying-direction of the recording medium; and a conveyance controller to control the second conveyance member so as to generate a slack of the recording medium at a section between the recording device and the second conveyance member in the conveying-direction of the recording medium.

Abstract: An inkjet recording apparatus includes: exchangeable first and second ink cartridges; a recording head which jets ink to a recording medium; an intermediate tank which receives the ink from the ink cartridge and supplies the ink to the recording head; a detecting sensor which detects whether ink residual quantity of an ink cartridge is not more than predetermined quantity based on ink quantity in the intermediate tank; a switching section which, if the ink residual quantity is not more than the predetermined quantity, switches the ink cartridge for supplying the ink to the intermediate tank; a first detector which detects the reset of the first ink cartridge; a second detector which detects the reset of the second ink cartridge; and a controller which, if the first ink cartridge is reset, controls the switching section to switch the second ink cartridge to the first ink cartridge, for supplying the ink.

Abstract: The present invention concerns an image recording apparatus, which records images on a roll-type recording medium. The image recording apparatus includes a recording device to record an image on a recording medium by emitting ink onto the recording medium; a cutting member to cut the recording medium after the recording device records the image, the cutting member being disposed downstream in respect to the recording device in a conveying-direction of the recording medium; a second conveyance member to convey the recording medium, the second conveyance member being disposed at a position located between the recording device and the cutting member in the conveying-direction of the recording medium; and a conveyance controller to control the second conveyance member so as to generate a slack of the recording medium at a section between the recording device and the second conveyance member in the conveying-direction of the recording medium.

Abstract: An apparatus for forming an image comprises a plurality of light emitting elements each emitting light having substanitially the same peak wavelength as those of others; a conveyor to convey a recording medium to receive light emitted from the plurality of light emitting elements relative to the plurality of light emitting elements; and a controller to control the plurality of light emitting elements such that a single pixel on the recording medium is formed by light emitted from at least two pieces of light emitting elements.