Abstract: An image formation apparatus includes: a sheet feeder that conveys a paper fed from a sheet feed tray; a conveyance cylinder that includes a gripper that grips the paper, and receives the paper conveyed on the sheet feeder and conveys the paper to a position of a printing part in a state where the paper is gripped by the gripper; and a heater that is provided on an upstream side of the conveyance cylinder in a conveyance direction and heats the paper so as to satisfy a temperature condition of following Expression (1): |T1?T2|/T1<0.15 ??Expression (1) where T1 is a temperature [° C.] of a paper end of the paper at the position of the printing part, and T2 is a temperature [° C.] of the paper end of the paper when the paper is transferred from the sheet feeder to the conveyance cylinder.

Abstract: An ink jet recording device includes the following. A conveyor conveys a recording medium. A recording operator ejects an ink to cause the ink to land on the recording medium in a middle of a conveyance path of the recording medium conveyed by the conveyor. A reverser returns the recording medium from a first position downstream of a landing position of the ink, which is ejected from the recording operator, to a second position upstream of the landing position along the conveyance path. A first temperature regulator that regulates a temperature of the recording medium in at least a part of a region from the second position to the landing position on the conveyance path. A hardware processor causes the recording operator not to eject the ink while the recording medium initially passes through the landing position.

Abstract: An image formation apparatus includes: a sheet feeder that conveys a paper fed from a sheet feed tray; a conveyance cylinder that includes a gripper that grips the paper, and receives the paper conveyed on the sheet feeder and conveys the paper to a position of a printing part in a state where the paper is gripped by the gripper; and a heater that is provided on an upstream side of the conveyance cylinder in a conveyance direction and heats the paper so as to satisfy a temperature condition of following Expression (1): |T1?T2|/T1<0.15 ??Expression (1) where T1 is a temperature [° C.] of a paper end of the paper at the position of the printing part, and T2 is a temperature [° C.] of the paper end of the paper when the paper is transferred from the sheet feeder to the conveyance cylinder.

Abstract: An ink jet recording device includes the following. A conveyor conveys a recording medium. A recording operator ejects an ink to cause the ink to land on the recording medium in a middle of a conveyance path of the recording medium conveyed by the conveyor. A reverser returns the recording medium from a first position downstream of a landing position of the ink, which is ejected from the recording operator, to a second position upstream of the landing position along the conveyance path. A first temperature regulator that regulates a temperature of the recording medium in at least a part of a region from the second position to the landing position on the conveyance path. A hardware processor causes the recording operator not to eject the ink while the recording medium initially passes through the landing position.

Abstract: A belt cleaning device for cleaning of an endless conveyance belt configured to convey a recording medium, the belt cleaning device includes: a cleaning blade configured to remove washing liquid supplied to the conveyance belt by making contact with the conveyance belt; and an air jetting part configured to jet air for removing the washing liquid that has passed through the cleaning blade without being removed by the cleaning blade at a position downstream of the cleaning blade in a conveyance direction of the conveyance belt.

Abstract: A head unit including: an inkjet head that ejects ink; and a fixer to which the inkjet head is fixed, wherein an engaging part is provided to be fixed to one of the inkjet head and the fixer, and an engaged part is provided to be fixed to the other, the inkjet head is fixed to the fixer by engaging the engaging part and the engaged part, and in the engaging part or the engaged part, a rigidity of a portion including one part of an engagement surface on which the engaging part and the engaged part engage with each other is lower than a rigidity of the other portion.

Abstract: A sheet conveying device includes a first conveyer and a second conveyer, each including a upstream-side pulley and a downstream-side pulley with respect to a conveying direction, an endless belt stretched around these pulleys, and a suction mechanism provided on an inner periphery relative to a conveying surface of the endless belt, along the conveying direction, wherein a third conveyer including a upstream-side pulley and a downstream-side pulley relative to the conveying direction and an endless belt stretched around these pulleys is provided between the first conveyer and the second conveyer, and in a state where the third conveyer is viewed from a side of the conveying surface, the upstream-side pulley of the third conveyer is arranged to be overlapped with the downstream-side pulley of the first conveyer, and the downstream-side pulley of the third conveyer is arranged to be overlapped with the upstream-side pulley of the second conveyer.

Abstract: A recording apparatus executes recording with a recording head that discharges ink. The recording apparatus includes a platen arranged opposite the recording head and configured to support a sheet, at least one ink receiving portion arranged on the platen and configured to receive ink running off a side edge of the sheet, a suction portion configured to suction fluid from the ink receiving portion, and a supporting member configured to support the sheet at the ink receiving portion to prevent the sheet from sinking into the ink receiving portion.

Abstract: An inkjet recording apparatus includes a conveying unit configured to convey a recording medium, a recording head configured to eject ink onto the recording medium conveyed by the conveying unit to perform recording, a platen configured to support the recording medium at a position facing the recording head, a heating unit configured to heat the recording medium on the downstream side of the platen in the conveying direction, and a plurality of protrusions that are disposed on the downstream side of the platen, wherein the plurality of protrusions are configured to contact the non-recording surface of the recording medium, and wherein the plurality of protrusions are arranged in the width direction of the recording medium. On the downstream side of the platen, the plurality of protrusions are configured to give a corrugated shape in the width direction to the recording medium expanded by being heated by the heating unit.

Abstract: A recording apparatus executes recording with a recording head that discharges ink. The recording apparatus includes a platen arranged opposite the recording head and configured to support a sheet, at least one ink receiving portion arranged on the platen and configured to receive ink running off a side edge of the sheet, a suction portion configured to suction fluid from the ink receiving portion, and a supporting member configured to support the sheet at the ink receiving portion to prevent the sheet from sinking into the ink receiving portion.

Abstract: An ink-jet recording apparatus includes a platen provided with a suction-collection section which sucks in and collects ink discharged deviating from an end portion of recording medium. The ink-jet recording apparatus includes a suction force generation unit for collecting ink configured to enable the suction collection section to generate a suction force, a collection flow path connecting the suction collection section to the suction force generation unit for collection, and a flow path control unit configured to vary an sectional area of the collection flow path. The sectional area of the collection flow path is varied according to an image forming time or a type of the recording medium.

Abstract: An ink jet printer includes a platen including an attraction portion for attracting a sheet and a sheet support surface in which an collection opening for collecting ink discharged outside the sheet is formed, a negative pressure generation mechanism configured to be used in common to generate a negative pressure to be supplied to each of the attraction portion and the collection opening, a first duct configured to connect the negative pressure generation mechanism and the attraction portion, a second duct configured to connect the negative pressure generation mechanism and the collection opening, and an adjustment mechanism configured to ununiformly change a negative pressure to be supplied to the attraction portion through the first duct and a negative pressure to be supplied to the collection opening through the second duct.

Abstract: An inkjet recording apparatus includes a conveying unit configured to convey a recording medium, a recording head configured to eject ink onto the recording medium conveyed by the conveying unit to perform recording, a platen configured to support the recording medium at a position facing the recording head, a heating unit configured to heat the recording medium on the downstream side of the platen in the conveying direction, and a plurality of protrusions that are disposed on the downstream side of the platen, wherein the plurality of protrusions are configured to contact the non-recording surface of the recording medium, and wherein the plurality of protrusions are arranged in the width direction of the recording medium. On the downstream side of the platen, the plurality of protrusions are configured to give a corrugated shape in the width direction to the recording medium expanded by being heated by the heating unit.

Abstract: An ink jet printer includes a platen including an attraction portion for attracting a sheet and a sheet support surface in which an collection opening for collecting ink discharged outside the sheet is formed, a negative pressure generation mechanism configured to be used in common to generate a negative pressure to be supplied to each of the attraction portion and the collection opening, a first duct configured to connect the negative pressure generation mechanism and the attraction portion, a second duct configured to connect the negative pressure generation mechanism and the collection opening, and an adjustment mechanism configured to ununiformly change a negative pressure to be supplied to the attraction portion through the first duct and a negative pressure to be supplied to the collection opening through the second duct.

Abstract: An ink-jet recording apparatus includes a platen provided with a suction-collection section which sucks in and collects ink discharged deviating from an end portion of recording medium. The ink-jet recording apparatus includes a suction force generation unit for collecting ink configured to enable the suction collection section to generate a suction force, a collection flow path connecting the suction collection section to the suction force generation unit for collection, and a flow path control unit configured to vary an sectional area of the collection flow path. The sectional area of the collection flow path is varied according to an image forming time or a type of the recording medium.