A print system includes a first printer which performs printing on a sheet while conveying the sheet and a second printer which receives the sheet conveyed from the first printer and performs printing on the sheet while conveying the sheet. The second printer includes a second printing unit, a second registration roller, a second pre-registration roller, a sheet detector, and a second controller. The second controller controls an operation of the second pre-registration roller and an operation of the second registration roller based on a timing of a detection of the sheet by the sheet detector.

An image forming apparatus is provided including a drive source, a switching member, a drive force transmitter, a clutch, a controller, etc. The drive source drives a conveyer to rotate either normally or reversely. The switching member is swingable between an evacuation position and a striking position as a shaft rotates. The drive force transmitter transmits a drive force from the drive source to both the conveyer and the shaft. The clutch transmits the drive force to the shaft when being connected, and holds the switching member at the striking or evacuation position when being disconnected. The controller controls the drive source and the clutch such that the conveyer normally rotates to convey a manually-inserted recording medium from a manual conveyance path to an ejector and that the switching member swings from the evacuation position to the striking position, based on a signal indicating that the set position is wrong.

A printing device including: a first conveyance path and a second conveyance path configured to conveying print media; a skew correction unit configured to correct skewing of the print medium conveyed along the first conveyance path; and a print unit configured to print on the print medium conveyed on the first conveyance path or the second conveyance path; the first conveyance path and the second conveyance path merging downstream of the skew correction unit; print media conveyed from the second conveyance path.

A method for efficiently multiple loading substrates simultaneously onto an endless transport belt of a printer, including steps of engaging each substrate by an array of grippers, each gripper being rotatably mounted on a support beam; pivoting and/or rotating the support beam with the grippers gripping the substrates, so that the substrates are positioned on the transport belt over at least one suction chamber; driving the transport belt to move the substrates, while a negative pressure is applied to the substrates via the at least one suction chamber, so that trailing portions of each of the substrates are pulled onto the belt.

A method for efficiently multiple loading substrates simultaneously onto an endless transport belt of a printer, including steps of engaging each substrate by an array of grippers, each gripper being rotatably mounted on a support beam; pivoting and/or rotating the support beam with the grippers gripping the substrates, so that the substrates are positioned on the transport belt over at least one suction chamber; driving the transport belt to move the substrates, while a negative pressure is applied to the substrates via the at least one suction chamber, so that trailing portions of each of the substrates are pulled onto the belt.