Printing material cartridge, the cartridge and printing apparatus group

The present invention relates to printing material cartridge, the cartridge and printing apparatus group. Providing a mounting detection technology capable of printing material cartridge by means different from the past. The printing apparatus includes a holder mounted thereon by a group of N printing material cartridge box configuration; for mounting state detecting circuit mounting printed material within the cartridge holder detector. N printing material cartridges each having a storage means for storing information received printed material related to, detection of mounting an electrical device, the storage device of the terminal, a terminal for electrical devices. Electrical device N printing material when the cartridge is configured to N printing material cartridges are all mounted in a holder inside the threshold current when the detected current is greater than or equal to a predetermined value.