Image forming apparatus to shorten time consumed from reception of image formation command to complete image forming process, image forming system, and non-transitory computer readable medium

An image forming system comprising:

• an image forming apparatus including a first processor configured to control a transporter that transports a sheet and a first image forming section that forms an image on the sheet transported by the transporter, and a second processor configured to control a second image forming section that forms an image on the sheet transported by the transporter, the first processor and the second processor being contained in a single housing;
• and
• a terminal apparatus configured to transmit a command for forming the image at the first image forming section to the first processor and transmit a command for forming the image at the second image forming section to the second processor if the images are to be formed at the first image forming section and the second image forming section, wherein, if the image is not to be formed at the first image forming section but the image is to be formed at the second image forming section, the terminal apparatus is configured to transmit, to the first processor, a command for not forming the image at the first image forming section but for forming the image at the second image forming section and transmit a command for forming the image at the second image forming section to the second processor,
• wherein the first processor is configured to ascertain that the independent process is to be performed by receiving an image formation command for the independent process from outside the housing,
• wherein the second processor is configured to transmit a request for transmission of the preparation command to the first processor by receiving, from outside the housing, an image formation command related to the independent process but different from the image formation command for the independent process received by the first processor, and
• wherein the first processor is configured to transmit the preparation command to the second processor when the request is received from the second processor.

A non-transitory computer readable medium storing a program causing a first processor to execute a process, the first processor being configured to control a transporter that transports a sheet and a first image forming section that forms an image on the sheet transported by the transporter, the process comprising:

• performing transport preparation for transporting the sheet at the transporter and receiving, from a second processor, a completion notification corresponding to a preparation command, for performing image formation preparation in a second image forming section, transmitted to the second processor via an inside of the housing when the first processor receives an image formation command from outside the housing and determines to perform an image forming process at the first image forming section, and subsequently causing the transporter to transport the sheet and the first image forming section to form the image, the second processor being configured to control the second image forming section that forms an image on the sheet transported by the transporter;
• and
• performing the transport preparation before the first processor receives the completion notification, and causing the transporter to transport the sheet after the first processor receives the completion notification, if the first processor ascertains that an independent process involving not forming the image at the first image forming section but forming the image at the second image forming section is to be performed;
• wherein the first processor is configured to ascertain that the independent process is to be performed by receiving an image formation command for the independent process from outside the housing,
• wherein the second processor is configured to transmit a request for transmission of the preparation command to the first processor by receiving, from outside the housing, an image formation command related to the independent process but different from the image formation command for the independent process received by the first processor, and
• wherein the first processor is configured to transmit the preparation command to the second processor when the request is received from the second processor.