| 摘要 |
Tag side antennas attached at cartridge accessories and main body side antennas can be disposed sufficiently close to one another and facing one another without an increase in size of a device, even if the tag side antennas cannot be attached so as to cover end surface portions of the cartridge accessories and/or the number of the cartridge accessories mounted at the device main body is large. Tag side antennas disposed at each of toner cartridges are formed by conductive wiring in coil shapes. The toner cartridges are supported such that axes of these coils are substantially orthogonal to an insertion/removal direction at a cartridge holder. A main body side antenna is also formed by conductive wiring in a coil shape, has a coil axis substantially orthogonal to the insertion/removal direction, and may be supported interposed in a space between two of the toner cartridges.
|
