Image Forming System and Post-Processing Apparatus

The An image forming system of, comprising:

• an image forming section to respectively form images on recording materials;
• a stacking section to stack recorded materials continuously ejected from the image forming section after the images are respectively formed on the recording materials;
• an instruction inputting section from which instruction information is inputted with respect to a confirmation-image outputting operation for confirming a finished status of the images formed on the recorded materials;
• an ejecting section to stack a part of the recorded materials ejected from the image forming section;
• and
• a controlling section to conduct controlling operations in response to the instruction information, inputted from the instruction inputting section during an implementation of an image forming job including an operation for stacking the recorded materials ejected from the image forming section, in order to eject the part of the recorded materials onto the ejecting section;
• wherein the instruction information includes an instruction for instructing output conditions with respect to the confirmation-image outputting operation;
• wherein, when the output conditions, inputted from the instruction inputting section, are fulfilled during the implementation of the image forming job, the controlling section conducts the controlling operations to eject a part of the recorded materials onto the ejecting section;
• wherein an instruction of whether or not the confirmation-image outputting operation is to be conducted when an environmental deviation amount in the image forming system exceeds a predetermined deviation amount during the implementation of the image forming job, can be inputted from the instruction inputting section as the output conditions with respect to the confirmation-image outputting operation;
• and
• wherein, in a case that the instruction, indicating that the confirmation-image outputting operation is to be conducted when the environmental deviation amount in the image forming system exceeds the predetermined deviation amount during the implementation of the image forming job, is inputted from the instruction inputting section, the controlling section conducts the controlling operations to eject the part of the recorded materials onto the ejecting section when the environmental deviation amount in the image forming system exceeds the predetermined deviation amount during the implementation of the image forming job.