Image forming system in which a mobile terminal sets print setting information and transmits a print instruction to an image forming apparatus, and related image forming apparatus and image forming method

An image forming system comprising:

• (A) a mobile terminal;
• and
• (B) an image forming apparatus capable of communication with the mobile terminal, the image forming apparatus including:
• (a) an image forming device that forms an image on a sheet;
• (b) a processor;
• and
• (c) a memory storing at least one program that, when executed by the processor, causes the image forming apparatus:
• (i) to obtain document data and to store the document data;
• (ii) to transmit a list related to the document data stored in the image forming apparatus to the mobile terminal;
• (iii) to obtain, from the mobile terminal, information indicating document data selected from the list;
• (iv) to transmit image data based on the selected document data corresponding to the obtained information to the mobile terminal;
• (v) to obtain second print setting information and a print instruction from the mobile terminal;
• and
• (vi) to cause the image forming device to form the image on the sheet based on the second print setting information and the stored document data corresponding to the obtained information in accordance with the print instruction,
• wherein the mobile terminal includes:
• (a) a processor;
• and
• (b) a memory storing at least one program that, when executed by the processor, causes the mobile terminal:
• (i) to obtain the list stored in the image forming apparatus from the image forming apparatus and to display the list on a display device;
• (ii) to receive, from the user, a selection of document data from the displayed list;
• (iii) to transmit information indicating the selected document data to the image forming apparatus;
• (iv) to obtain the image data, transmitted from the image forming apparatus, related to the selected document data;
• (v) to cause the display device to display a first preview image, reflecting first print setting information, based on the image data received from the image forming apparatus;
• (vi) to accept the second print setting information of the document data corresponding to the first preview image;
• (vii) to cause the display device to display a second preview image, reflecting the second print setting information, based on the second print setting information;
• (viii) to accept a print instruction after displaying the second preview image;
• and
• (ix) to transmit the second print setting information and the print instruction of the selected document data to the image forming apparatus in accordance with having received the print instruction under a print setting corresponding to the second print setting information,
• wherein the mobile terminal transmits, to the image forming apparatus, the print instruction under the second print setting, without transmitting the selected document data, and
• wherein the image forming apparatus causes the image forming device to form the image on the sheet using the stored document data based on the second print setting received from the mobile terminal, without receiving the selected document data from the mobile terminal.