A medium transport device includes a feeding roller that feeds a recording medium, a transport roller that transports the recording medium toward a recording head, and a transport motor which is a common driving source for the feeding roller and the transport roller. The medium transport device includes a power transmission mechanism that transmits power of the transport motor to the feeding roller, and a control section that controls a current of the transport motor. The control section measures a current value flowing through the transport motor during driving as a measured current value, and adds a predetermined offset value to the measured current value to set a second limit value as a limit value of the current supplied to the transport motor.

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.

To minimize the cost of a fiber web due to the web, particularly a board web, being manufactured overly thick to compensate for loss of caliper in the reel-up, the web is made thicker just for the inner layers of what will become a parent roll. The caliper of the web is measured as or after it is unwound. A caliper curve of the parent roll as a function of the diameter of the parent roll is calculated as a function of the diameter of the parent roll and/or the customer roll. The fiber web is adjusted by changing running parameters of the production line: web speed i.e. production speed, headbox-flow, head-box consistency, coating weight of the coating paste or calender nip load.

A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.

A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.

According to some embodiments, a stacking assembly accepts mail-pieces traveling from a re-direct mechanism in a first direction and urges a leading edge portion of a mail-piece toward a registration wall of a sortation bin. The stacking assembly may include a plurality of neighboring cam shafts, each with at least one cam, arranged along the first direction, such that rotation of the cam shafts results in synchronized rotation of the cams to guide an incoming mail-piece. Rotation of the cam shafts may also urge a previously stacked mail-piece away from the cams, and into the sortation bin, in a second direction perpendicular to the first direction.

A controller determines whether, in a case where feeding of a subsequent sheet is performed in a first feed condition, a subsequent sheet contacts conveyance rollers during recording on a preceding sheet, the first feed condition being that feeding of the subsequent sheet is started at a first timing before recording on the preceding sheet ends and that the subsequent sheet is fed at a first velocity, and in response to determining that the subsequent sheet contacts the conveyance rollers during recording on the preceding sheet, controls the feed roller to perform feeding of the subsequent sheet in a second feed condition or a third feed condition, the second feed condition being that the feeding of the subsequent sheet is started at a second timing later than the first timing, the third feed condition being that the subsequent sheet is fed at a second velocity lower than the first velocity.

An image recording apparatus includes a roller pair for transporting a sheet, a recording head, and a controller. The controller determines a linefeed amount by which the sheet is transported by the roller pair between corresponding two adjacent passes of the recording head. The controller executes image recording on the sheet by alternately repeating a linefeed operation for rotating the roller pair by the determined linefeed amount to transport the sheet in a transport direction, and a pass recording operation in which the controller causes the roller pair to stop and the recording head to perform a pass and to record part of an image on the sheet. Upon determining that a linefeed operation would cause the sheet to travel past the roller pair while the roller pair is decelerating, replace for the linefeed operation a determined linefeed amount by an adjusted linefeed amount.

According to some embodiments, a stacking assembly accepts mail-pieces traveling from a re-direct mechanism in a first direction and urges a leading edge portion of a mail-piece toward a registration wall of a sortation bin. The stacking assembly may include a plurality of neighboring cam shafts, each with at least one cam, arranged along the first direction, such that rotation of the cam shafts results in synchronized rotation of the cams to guide an incoming mail-piece. Rotation of the cam shafts may also urge a previously stacked mail-piece away from the cams, and into the sortation bin, in a second direction perpendicular to the first direction.

According to some embodiments, a stacking assembly accepts mail-pieces traveling from a re-direct mechanism in a first direction and urges a leading edge portion of a mail-piece toward a registration wall of a sortation bin. The stacking assembly may include a plurality of neighboring cam shafts, each with at least one cam, arranged along the first direction, such that rotation of the cam shafts results in synchronized rotation of the cams to guide an incoming mail-piece. Rotation of the cam shafts may also urge a previously stacked mail-piece away from the cams, and into the sortation bin, in a second direction perpendicular to the first direction.