METHOD OF USING AND CONTROLLING IMAGE FORMING DEVICE, MARKETING METHOD FOR IMAGE FORMING DEVICE AND IMAGE FORMING DEVICE

摘要

A printer capable of controlling the operation capacity of an image forming device according to a user's application mode. Operation capability designating information for designating the operation capability of an image forming device is rewritably retained in an EEPROM (34) provided in the print controller (30) of the image forming device. The CPU (31) of the print controller (30) judges whether or not a printing request from a computer (40) is within a capability range designated by retained operation capability designating information. If within a capability range, a print engine (10) is used to form an image. The operation capability can set a usable amount of ink to be stored in an ink cartridge (20).