摘要:
In a sheet discharge mechanism for enabling a wide range of sheets stored on a sheet discharge tray from a processing section, a brake lever for reducing a velocity of a sheet fed from a sheet discharge outlet is held detachably relative to an attachment frame above the sheet discharge tray, and it is possible to select whether brake action is made corresponding to sheet discharge conditions. A sheet discharge mechanism includes a sheet discharge path having a sheet discharge outlet, a sheet discharge tray disposed on the downstream side of the sheet discharge outlet with a level difference, and a brake section of a sheet carried out at the sheet discharge outlet, wherein the brake section includes a lever member in which its base end portion is axially supported by an attachment frame, and its front end portion moves up and down corresponding to a load amount of sheets.
摘要:
A printing machine includes a printing unit which performs printing while transferring a sheet at a printing transfer speed, a circulation transfer unit which receives the sheet after simplex printing and transfers the sheet by reversing the sheet upside down, during duplex printing; and a paper refeed unit which refeeds, to the printing unit, the sheet transferred by the circulation transfer unit after simplex printing, wherein the circulation transfer unit includes a reversing unit which receives the sheet at the printing transfer speed, reverses the sheet upside down by switching back the sheet and accelerates the sheet up to a circulation transfer speed which is higher than the printing transfer speed when sheet transfer is restarted after temporal stop in the switching back, and a horizontal transfer unit which transfers the sheet switched back by the reversing unit, at the circulation transfer speed.
摘要:
An image forming apparatus includes a suction fan unit, a conveyor belt, a plurality of sheet-pressing rollers, and a control unit. The conveyor belt conveys a recording sheet suctioned by the suction fan unit, to a printer part. The sheet-pressing rollers are arranged at intervals in a main scanning direction orthogonal to a conveying direction of the recording sheet by the conveyor belt, and press the recording sheet onto the conveyor belt before the recording sheet is conveyed to the printer part. When a type of the recording sheet is a type meeting a predetermined condition, the control unit controls a suction strength of a suction fan unit such that a suction strength at both end portions of the suction part in the main scanning direction is higher than a suction strength at a central portion of the suction part in the main scanning direction.
摘要:
A controller, upon remaining sheets existing in both a print conveyer and a lower conveyer and a sheet size of the sheets being equal to or larger than a specified size upon occurrence of a sheet jam: control an elevator to maintain the print conveyer at a print position, determine to position the print conveyer at a lower limit position in response to removal of the remaining sheet from the lower conveyer, and then drive the elevator to move the print conveyer to the lower limit position; or drive the elevator to move the print conveyer to the lower limit position, determine to position the print conveyer at the print position in response to removal of the remaining sheet from the lower conveyer, and then drive the elevator to move the print conveyer to the print position.
摘要:
A paper transfer device includes a paper transfer unit that transfers a paper laid on a transfer surface beneath an inkjet head, a downstream-side transfer portion that is disposed on a downstream side of the transfer unit along a transfer direction of the paper and transfers the paper along a downstream-side transfer path extending downward from the transfer surface, a paper leading portion that leads the paper from the transfer unit to the downstream-side transfer portion, and a controller that controls the paper leading portion to press the paper after a leading end of the paper is led to the downstream-side transfer portion by the paper leading portion.