A medium transport device includes a first transport route for discharging a medium processed by a processing unit, a second transport route for discharging the medium processed by the processing unit, and a medium receiving tray that is capable of switching a state between a medium receiving state of receiving the medium that is discharged through the first transport route and a medium unreceivable state achieved by performing state switching from the medium receiving state. The first transport route comes into a non-formed state and at least a part of the medium receiving tray forms the second transport route when the medium receiving tray is in the medium unreceivable state, and the second transport route comes into the non-formed state and the first transport route is formed when the medium receiving tray comes into the medium receiving state.

An image forming system has a transmission assembly, standard and auxiliary sheet feeders, standard and auxiliary trays, an image forming device and a controller. The transmission assembly is for switching transmission of a drive force of a motor selectively to the one of the standard and auxiliary sheet feeders. The controller determines whether sheet is absent in the standard tray. The controller, based on determining the sheet is absent in the standard tray and receipt of preceding data, control the transmission assembly to initiate to switch the transmission of the drive force to the auxiliary sheet feeder. Also the controller, based on receipt of control data received after preceding data, control the image forming device to form an image based on the control data.

A liquid discharge apparatus includes a conveyance path, a liquid discharge head, and a drying device. A medium is to be conveyed on the conveyance path. The liquid discharge head discharges liquid onto the medium conveyed on the conveyance path. The conveyance path includes a switchback path and an ejection path. The switchback path switches back a conveyance direction of the medium onto which the liquid has been discharged. The ejection path conveys the medium onto which the liquid has been discharged to an ejection port. The drying device dries the medium both on the switchback path and on the ejection path.

A recording apparatus includes: a feeding unit that feeds a medium placed on a medium placing unit located on a back side (Y) of the apparatus; a transport unit that transports the medium fed from the feeding unit; a recording unit that performs recording on the medium transported from the transport unit; a reverse path that transports the medium in a reverse direction after recording is performed by the recording unit to turn over the medium; and a feed driving motor that drives the feeding unit, wherein the feed driving motor is disposed above the reverse path.

A conveying apparatus, including: a conveyor mechanism; a housing; a first tray configured to receive a medium conveyed by the conveyor mechanism; an image reader disposed above the first tray, wherein a first discharge opening for discharging the medium outside the housing is formed in an upper surface of the housing so as not to overlap the image reader when viewed from above, and wherein the conveying apparatus further includes: a switcher for switching a destination of the medium selectively between the first tray and the first discharge opening; and a tray unit removably mountable on the upper surface of the housing and including a first introduction opening opposed to the first discharge opening, a second conveyance path for conveying the medium passed the first discharge opening and the first introduction opening, and at least one second tray for receiving the medium conveyed through the second conveyance path.

A printer is configured that, when double-side recording is executed, a back end side of a long strip-like recording medium on which single-side recording is executed by a recording unit is cut by a cutter mechanism, the cut-off recording medium is thereafter conveyed to an inversion mechanism starting with a front end thereof by a switching flap disposed on a side closer to a discharge outlet than the cutter mechanism, a front side and a back side are inverted to each other at the inversion mechanism, thereafter the recording medium is again conveyed to the recording unit starting with an end thereof that is the back end when the recording medium is conveyed to the inversion mechanism, recording is executed for the back side by the recording unit, thereafter the recording medium is again conveyed to the cutter mechanism, and a margin is cut off by the cutter mechanism.

There is provided a recording system that can suppress a reduction in throughput when post-processing is performed in a post-processing apparatus.

An image forming apparatus in which at least part of an image scanner is disposed in an area below an original discharge unit and above an image forming unit.

A relay conveyance device includes a relay conveyance path, a processing unit, a main heater and a sub heater. The relay conveyance path is arranged between an image forming apparatus forming an image on a sheet and a post processing device carrying out post process to the sheet with the image formed by the image forming apparatus to convey the sheet from the image forming apparatus to the post processing device. The processing unit carries out predetermined process to the sheet at a predetermined position on the relay conveyance path. The main heater heats the sheet in processing in the processing unit. The sub heater heats the sheet in conveying at a position other than the predetermined position on the relay conveyance path. When an ink amount of the image formed on the sheet is less than a predetermined lower threshold, the sub heater is turned off.

It is possible to more securely reduce the printing time of printing processing to perform printing while conveying printing sheets in an overlapping manner. An image forming apparatus including: a determination unit configured to analyze print data for printing an image on one printing sheet and to determine, based on the analysis results, an overlap amount of the one printing sheet and another printing sheet conveyed in a state of overlapping part of the one printing sheet; and a conveyance unit configured to convey the one printing sheet and the other printing sheet in an overlapping manner in accordance with an overlap amount determined by the determination unit, and a target image range of the analysis of the print data is determined in accordance with a predetermined overlap amount determined in advance, which a printing unit can permit.