Image Forming Apparatus, Control Method of Image Forming Apparatus and Image Forming System

A control method that a computer of an image forming apparatus comprising a storage that stores destination information data of a predetermined transmission destination apparatus, executing:

• receiving print data transmitted from an external apparatus;
• storing the print data in the storage;
• determining, when receiving a print instruction for the print data from a further image forming apparatus, whether transmission instruction data to a transmission destination apparatus is included in the print data;
• transmitting the print data to the further image forming apparatus when receiving the print instruction for the printing data;
• and
• transmitting print image data included in the print data to the transmission destination apparatus when determining that the transmission instruction data is included in the print data.

An image forming system in which a plurality of image forming apparatuses including a first image forming apparatus and a second image forming apparatus are connected to each other in a communicable manner, wherein

• the first image forming apparatus comprises:
• a first image forming unit that forms an image on a recording medium;
• a first communication unit capable of receiving print data transmitted from a first external apparatus;
• a storing unit that stores the print data received by the first communication unit and destination information of a second external apparatus;
• a first transmission determination unit that determines whether the print data includes a transmission instruction to the second external apparatus;
• and
• a first communication control unit that controls an operation of the first communication unit, wherein
• the first communication control unit controls the first communication unit so that the print data is transmitted to the second image forming apparatus in response to a request from the second image forming apparatus, and when the transmission instruction to the second external apparatus is included in the print data, the print data to which destination information of the second external apparatus is added is transmitted to the second image forming apparatus, wherein
• the second image forming apparatus comprises:
• a second communication unit capable of receiving the print data transmitted from the first image forming apparatus;
• a second image forming unit that forms an image on a recording medium based on the print data received by the second communication unit;
• a second transmission determination unit that determines whether the print data includes a transmission instruction to the second external apparatus;
• and
• a second communication control unit that controls an operation of the second communication unit, wherein
• the second communication control unit controls the second communication unit so that print image data based on the print data is transmitted to the second external apparatus by utilizing the destination information added to the print data when the transmission instruction to the second external apparatus is included in the print data.