An aqueous ink printer is operated to insert media sheets from a first supply tray into a plurality of media sheets from a second tray on which ink images are being formed by the printer to absorb condensed vapors on media guides. The media sheets from the first tray are uncoated media and the media sheets from the second tray are coated media. In some embodiments, the inserted media sheets are printed with an ink image that has areas that contact the media guides with a greater ink density than other areas of the ink image that do not contact the media guides. Additionally or alternatively, the inserted media sheets are printed with an ink image that has areas that contact the media guides with an ink color that is different than an ink color used in other areas of the ink image that do not contact the media guides.

A control section of a recording apparatus is configured to execute control of overlapping transportation in which a preceding medium and a following medium are transported in a state in which a rear end region of the preceding medium and a leading end region of the following medium overlap at least in a partial section in an upper transport route, and determines an overlapping dimension Lk that is a dimension, by which the rear end region of the preceding medium and the leading end region of the following medium overlap, in accordance with a route dimension Ld from a third feed roller pair to an edge of an introducing port in a second direction, when executing the control of the overlapping transportation.

The controller of an inkjet recording apparatus supplies a recording medium onto the conveyor belt with a pair of registration rollers based on a detection result of the trailing edge of the recording medium by a first detection sensor and a detection result of an opening by a second detection sensor. The controller determines whether the recording medium is being placed on the conveyor belt coinciding with the opening that is moved due to the traveling of the conveyor belt, and based on the determination result, the controller controls the recording head to execute flushing and the pair of registration rollers to supply a subsequent recording medium onto the conveyor belt.

A printing apparatus includes a first feeding roller, a feeding motor configured to drive the first feeding roller, a second feeding roller, a conveyance roller, a conveyance motor configured to drive the conveyance roller, a printing unit configured to print the printing sheet, a detection sensor configured to detect the leading edge of the printing sheet, and a control unit configured to, when the printing unit performs a printing operation on a preceding sheet, drive the feeding motor in synchronization with the conveyance motor before the detection sensor detects the leading edge of a succeeding sheet, and continuously drive the feeding motor so that the conveying speed of the succeeding sheet by the feeding motor becomes higher than that of the preceding sheet after the detection sensor detects the leading edge of the succeeding sheet.

A printing apparatus includes a feeding roller configured to feed a printing sheet stacked on a stacking unit, a conveyance roller configured to convey the printing sheet fed by the feeding roller, a printing unit configured to print the printing sheet conveyed by the conveyance roller, a conveyance control unit configured to control conveyance of printing sheets so that the trailing edge of a preceding sheet as a printing sheet precedingly fed from the stacking unit and the leading edge of a succeeding sheet as a printing sheet succeedingly fed from the stacking unit overlap each other, and a determination unit configured to determine whether to convey the succeeding sheet to a position facing the printing unit while keeping an overlap state between the preceding sheet and the succeeding sheet.

A sheet loading device includes a device body to load a sheet, a guide disposed extending in a sheet conveying direction in the device body, a restricting body to move along the guide of the device body and to restrict a position of an end portion of the sheet, and a securing body to attach to the restricting body and the guide and detach from the restricting body and the guide, and having an engaging body. The engaging body of the securing body engages with the guide at an arbitrary position on the guide in the sheet conveying direction. The restricting body is being secured to the device body according to engagement of the engaging body of the securing body with the guide of the device body.

A paper conveyance device includes a paper feed unit, a conveyance rotator, a conveyance guide, a multi-feed detection unit, and a control unit. The control unit causes an ultrasonic sensor to transmit an ultrasonic wave in a detection section. The control unit sets a detection execution section and a detection skip section in the detection section. The control unit does not determine whether multi-feed has occurred in the detection skip section. The control unit sets the detection skip section based on a time point at which vibration is applied to conveyed paper.

A sheet suction device includes a bearing member configured to bear a sheet on a circumferential surface of the bearing member and rotate, a plurality of suction holes in a bearing region in the circumferential surface of the bearing member, a suction device connected to the plurality of suction holes, the suction device configured to suck the sheet through the plurality of suction holes, and a rotary valve between the bearing member and the suction device. The rotary valve includes: a first member communicating with the suction device, and a second member contacting the first member, the second member communicating with the plurality of suction holes. The first member includes a first groove on a side surface in a circumferential direction of the first member, the first groove communicating with the suction device.

In an example of a method for adjusting a print speed, a base throughput of a printing device is determined for a page gap and a print speed for a current page being constant. A calculated throughput for a number of upcoming pages is determined based on extra time for speeding up the print speed. The print speed is adjusted based on the base throughput and the calculated throughput.

A method and a printer for aligning leading edge of a printable receipt to print position of a printer is described. The printer includes a sensor placed proximal to a cutter position. The sensor generates a first signal in response to a printable receipt blocking the sensor. Upon detection of first signal from the sensor, a backward feed signal is provided to a first motor until the first signal is stopped to roll the printable receipt into a print receipt roller. Further, a forward feed signal is provided to the first motor to unroll printable receipt from the print receipt roller until a second signal is received from the sensor on blocking by the printable receipt. Upon detection of the second signal, an automatic fixed backward feed signal is provided to the first motor to align the leading edge of the printable receipt in the print position thereby avoiding wastage of printable receipt.