Image forming system

An image forming device that forms an image on a sheet and feeds the image-formed sheet to a downstream side processing device for processing, the device comprising:

• an image forming section that forms an image on a sheet;
• and
• a controller that sets an image forming order in the image forming section, wherein the controller includes:
• a calculating unit that calculates, for sheets to be fed from the image forming section to the processing device, the number of sheets to be made to temporarily stand by during execution of the processing in the processing device;
• and
• an image order setting unit that sets an image forming order of sheets that are made to standby based on the number of sheets calculated by the calculating unit, and
• the image order setting unit makes the image forming order of the sheets to be made to stand by from that of the sheets that are not made to stand by.

A processing device comprising:

• a processing section that performs processing for a sheet;
• a conveying path along which a sheet fed from an image forming device is conveyed to the processing section;
• a standby section disposed in the conveying path, in which the sheet to be fed to the processing section is made to temporarily stand by in a standby section;
• a calculating unit that calculates the number of sheets to be made to stand by during execution of a set processing mode;
• an image order setting unit that sets an image forming order of sheets to be made to standby whose number has been calculated by the calculating unit;
• and
• a controller that makes a plurality of sheets on which an image has been formed according to the image forming order set by the image order setting unit stand by in the standby section and conveys them to the processing section.