Abstract: Attached information is designated, and it is discriminated whether or not there is a paper output port corresponding to attached information read from a storage unit for storing image data and attached information about the image data. If it is determined there is a corresponding paper output port, then the paper output port is determined as a selected paper output port. If it is determined there is not a corresponding paper output port, then an available paper output port is determined as a selected paper output port. Thus, recorded images can be automatically discriminated based on the attached information.

Abstract: A recorded image can be automatically classified according to attached information by designating a name of each paper discharge tray, and determining the paper discharge tray of a paper on which an image is recorded based on an image data read by a storage unit according to the attached information read from the storage unit storing the image data and the attached information about the image data and the name designated by a designation unit.

Abstract: A mailbox sheet discharge designation environment which flexibly deals with various requests from each user and inhibits a user's load is provided. In this environment, a host computer registers plural discrimination names including a user name and names of plural groups to which a user corresponding to the user name belongs for each of plural holding units of an image recording apparatus, and then transmits a printing job including sheet discharge address designation by the plural registered discrimination names to the image recording apparatus. The image recording apparatus registers in a memory the plural discrimination names transmitted from the host computer to each of the holding units, and then discharges the printing job to the holding unit to which the discrimination name same as the discrimination name designated to the printing job has been registered.