G - Physics – 05 – B
Patent
G - Physics
05
B
G05B 19/4065 (2006.01) B41J 2/17 (2006.01) B41J 2/175 (2006.01) B41J 2/195 (2006.01) B41J 29/393 (2006.01)
Patent
CA 2413597
An ink unit of a printer has a memory circuit (memory element) that includes an antenna for non-contact communication with an antenna of a transmitter/receiver. The memory circuit has a hold mode M2 in which memory access commands from the transmitter/receiver are not received, and an active made M4 in which memory access is permitted upon receipt of a memory access command. The memory circuit shifts into active mode M4 if the identification (ID) contained in the active mode command matches its own ID when an active mode command containing the cartridge ID is received from the transmitter/receiver while in hold mode M2. A shift to an anti-collision mode M3 to check the ID occurs with the reception of an anti- collision start command from the transmitter/receiver while in hold mode M2.
Gowling Lafleur Henderson Llp
Seiko Epson Corporation
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