An image forming apparatus includes an image formation engine configured to form an image on a sheet, and a re-conveyer configured to convey the sheet having an image formed on one surface thereof by the image formation engine to the image formation engine again along a re-conveying path. The re-conveyer includes a conveying roller configured to convey the sheet in a re-conveying direction toward the image formation engine, a first guide member configured to be swingable between a first position at which the first guide member defines a portion of the re-conveying path upstream of the conveying roller in the re-conveying direction and guides the sheet to the conveying roller and a second position for exposing the potion of the re-conveying path, and a support member configured to swingably support the first guide member and rotatably support the conveying roller.

A printing apparatus comprising a sheet conveyance path that includes a plurality of waiting positions at which a sheet in which printing has been performed on a first side in double-sided printing is caused to wait in order to print an image on a second side of the sheet, and is able to selectively execute first print control, second print control and third print control, retains information regarding a sheet to be fed in accordance with the first to third print control in a sheet feed wait queue, and selects and executes one of the first to third print control based on a printing order of single-sided printing and double-sided printing in the print job, the number of the plurality of waiting positions, and information retained in the sheet feed wait queue.

An image forming system includes: a first image forming apparatus including a first fixer that fixes an image formed on a recording medium to the recording medium; a second image forming apparatus including a second fixer that fixes an image formed on the recording medium to the recording medium, the second image forming apparatus being connected to a downstream side of the first image forming apparatus in a transport direction of the recording medium; and a hardware processor that determines first transport control content in which the recording medium is transported in the first image forming apparatus and the second image forming apparatus, and sets second transport control content so that the recording medium that has been processed by the first fixer is processed in a different position by the second fixer.

An image forming apparatus includes an image forming unit configured to perform a first image forming process and a second image forming process to form an image and a test image on a sheet; a reader, arranged in a conveyance path along which the sheet is conveyed, configured to read the test image on the sheet, the test image being formed by the image forming unit; a member; a controller configured to obtain, from the reader, reading data related to the test image on the sheet.

An image forming apparatus is configured to arrange a plurality of pages, including a first page and a second page adjacent to the first page, in print data, without providing a margin between adjacent pages in the plurality of pages. The image forming apparatus includes a changer configured to change at least one of a position or an angle of the second page, such that a color of a first edge portion region of the first page and a color of a second edge portion region, adjacent to the first edge portion region, of the second page, satisfy a predetermined condition.

Disclosed is a post-processing apparatus configured to be coupled to an image forming apparatus or another post-processing apparatus. The post-processing apparatus includes: a post-processing unit that performs post-processing to a sheet that is conveyed; and a standby path arranged on an upstream side or a downstream side of the post-processing unit and capable of holding the sheet. The post-processing unit performs the post-processing in a state in which the sheet is partly in the standby path.

An image forming apparatus includes a first and second processor. The first processor controls a transport device that transports a sheet and a first image forming section that forms an image on the sheet. The second processor controls a second image forming section that forms an image on the sheet. If an image is to be formed at the second section, the first processor causes the first section to perform image formation preparation and causes the device to transport the sheet upon receiving a notification from the second processor in response to a preparation command transmitted to the second processor for performing image formation preparation in the second section. If an image is not to be formed at the second section, the first processor causes the first section to perform the image formation preparation and the transport device to transport the sheet, without receiving the notification from the second processor.

A sheet conveying apparatus configured to convey a sheet includes a reversing portion, a reversing retraction portion provided in the reversing portion, a conveyance portion, a guide member provided in the reversing retraction portion, and a fan provided in the conveyance portion. The reversing portion conveys the sheet in a first direction and then a second direction opposite to the first direction. The reversing retraction portion temporarily retracts the sheet conveyed in the first direction. The conveyance portion has a conveyance path through which the sheet conveyed in the second direction passes and configured to convey the sheet. The guide member guides one surface of the sheet. The fan blows air toward the sheet guided by the guide member and is disposed to blow the air of the conveyance path in the conveyance portion toward the reversing retraction portion and along the guide member in the first direction.

A sheet conveyance apparatus includes a first conveyance portion configured to convey a sheet, a second conveyance portion configured to convey the sheet, the second conveyance portion including an abutment portion configured to form a loop on the sheet by being abutted against a leading edge of a sheet conveyed by the first conveyance portion, a curved guide portion, which is curved, configured to guide the sheet conveyed by the first conveyance portion to the second conveyance portion, and a rotary member arranged downstream of the first conveyance portion and upstream of the second conveyance portion in a sheet conveyance direction, and configured to be driven to rotate by a surface of the sheet that is guided by the curved guide portion, the surface sliding against the curved guide portion.

An example image forming apparatus includes a simplex path for conveying printing medium passing through a fixing unit provided in a main body to a discharge port of the main body, a duplex path for turning over printing medium and conveying the printing medium to the simplex path, and a discharge unit for selectively conveying a first printing medium and a second printing medium in different directions, wherein the first printing medium includes an image formed on one surface passing through the simplex path, and the second printing medium includes an image formed on two surfaces and passing through the simplex path after passing through the duplex path.