Abstract: A printing system includes first and second printing apparatuses that form images on first and second surfaces of a continuous recording sheet, respectively. The second printing apparatus includes a printing unit that forms a toner image on the sheet; a conveying unit that conveys the sheet at a reference speed in the printing unit; a fixing-conveying unit that conveys the sheet and fixes the toner image adhered to the sheet; a buffer unit that takes up slack in the sheet generated because of a difference in conveyance between the conveying unit and the fixing-conveying unit; a determining unit that determines a brake force for stopping conveyance of the fixing-conveying unit, based on a buffer amount of the buffer unit, which corresponds to the slack in the sheet; and a conveyance control unit that performs control to stop conveyance of the sheet by the determined brake force.

Abstract: A mark detecting device detects a positioning mark on a transfer medium based on light that is emitted to and then reflected from the transfer medium. The mark detecting device includes a light emitting unit that emits light to a target position on the transfer medium; a light receiving unit that receives light reflected from the target position; and an adjusting unit that rotatably supports a detecting unit including at least one of the light emitting unit and the light receiving unit about a center of rotation, which passes through the target position, on the transfer medium and adjusts the rotation angle of the detecting unit with respect to the center of rotation.

Abstract: According to the embodiment, a printing apparatus includes: a printing unit that forms an image on a web; a first feeding unit that feeds the web; a second feeding unit downstream of the printing unit in a feed direction; a buffer unit that has a buffer plate and absorbs flexure of the web generated by the two feeding units by operating the buffer plate; a first feeding control unit that causes the first feeding unit to execute a first deceleration operation; and a second feeding control unit that causes the second feeding unit to execute the first deceleration operation when a trigger for stopping the feed of the web has occurred, measures a feed amount of the web fed by the second feeding unit, and changes the first deceleration operation to a second deceleration operation based on the feed amount.

Abstract: According to the embodiment, a printing apparatus includes: a printing unit that forms an image on a web; a first feeding unit that feeds the web; a second feeding unit downstream of the printing unit in a feed direction; a buffer unit that has a buffer plate and absorbs flexure of the web generated by the two feeding units by operating the buffer plate; a first feeding control unit that causes the first feeding unit to execute a first deceleration operation; and a second feeding control unit that causes the second feeding unit to execute the first deceleration operation when a trigger for stopping the feed of the web has occurred, measures a feed amount of the web fed by the second feeding unit, and changes the first deceleration operation to a second deceleration operation based on the feed amount.

Abstract: A mark detecting device detects a positioning mark on a transfer medium based on light that is emitted to and then reflected from the transfer medium. The mark detecting device includes a light emitting unit that emits light to a target position on the transfer medium; a light receiving unit that receives light reflected from the target position; and an adjusting unit that rotatably supports a detecting unit including at least one of the light emitting unit and the light receiving unit about a center of rotation, which passes through the target position, on the transfer medium and adjusts the rotation angle of the detecting unit with respect to the center of rotation.

Abstract: A printing system includes first and second printing apparatuses that form images on first and second surfaces of a continuous recording sheet, respectively. The second printing apparatus includes a printing unit that forms a toner image on the sheet; a conveying unit that conveys the sheet at a reference speed in the printing unit; a fixing-conveying unit that conveys the sheet and fixes the toner image adhered to the sheet; a buffer unit that takes up slack in the sheet generated because of a difference in conveyance between the conveying unit and the fixing-conveying unit; a determining unit that determines a brake force for stopping conveyance of the fixing-conveying unit, based on a buffer amount of the buffer unit, which corresponds to the slack in the sheet; and a conveyance control unit that performs control to stop conveyance of the sheet by the determined brake force.