Liquid container, liquid supplying system and circuit board for liquid container

An inkjet recording apparatus comprising:

• a carriage including a plurality of mounting portions corresponding to different colors of inks, respectively;
• an apparatus antenna;
• a light receptor;
• a plurality of ink containers corresponding to the inks of the different colors, respectively,
• wherein the ink containers are detachably mountable to the mounting portions in the carriage, and
• wherein each of the ink containers includes (i) a container antenna for communication with the apparatus antenna without physical contact therebetween, (ii) an information storing portion storing at least container discrimination information corresponding to the color of the ink in the ink container, (iii) a light emitter for emitting light toward the light receptor, and (iv) a controller configured to control light emission of the light emitter based on color information received from the apparatus antenna via the container antenna and the container discrimination information stored in the information storing portion;
• and
• a discriminator configured to discriminate, for each of the ink containers, whether the ink container is mounted in a corresponding mounting portion of the mounting portions using light reception information of the light receptor provided by the light emitted from the light emitter.

An inkjet recording apparatus comprising:

• a carriage;
• an apparatus antenna;
• a light receptor;
• an ink container detachably mountable to the carriage, the ink container including (i) a container antenna for communication with the apparatus antenna without physical contact therebetween, (ii) an information storing portion storing at least container discrimination information corresponding to a color of an ink in the ink container, (iii) a light emitter for emitting light toward the light receptor, and (iv) a controller (iv-i) configured to receive color information and a command from the apparatus antenna via the container antenna and (iv-ii) configured (iv-ii-i) to turn on the light emitter if (a) the received color information corresponds to the container discrimination information stored in the information storing portion and (b) the received command is a turning on command for turning on the light emitter and (iv-ii-ii) to turn off the light emitter if (a) the received color information corresponds to the container discrimination information stored in the information storing portion and (b) the received command is a turning off command for turning off the light emitter;
• and
• a discriminator configured to discriminate whether the ink container is mounted at a correct position in the carriage using light reception information of the light receptor provided by the light emitted from the light emitter.

An inkjet recording apparatus comprising:

• a carriage including a plurality of mounting portions corresponding to different colors of inks, respectively;
• an apparatus antenna;
• a light receptor;
• a plurality of ink containers corresponding to the inks of the different colors, respectively,
• wherein the ink containers are detachably mountable to the mounting portions in the carriage, and
• wherein each of the ink containers includes (i) a container antenna for communication with the apparatus antenna without physical contact therebetween, (ii) an information storing portion storing at least container discrimination information corresponding to the color of the ink in the ink container, (iii) a light emitter for emitting light toward the light receptor, and (iv) a controller (iv-i) configured to receive color information and a command from the apparatus antenna via the container antenna and (iv-ii) configured (iv-ii-i) to turn on the light emitter if (a) the received color information corresponds to the container discrimination information stored in the information storing portion and (b) the received command is a turning on command for turning on the light emitter and (iv-ii-ii) to turn off the light emitter if (a) the received color information corresponds to the container discrimination information stored in the information storing portion and (b) the received command is a turning off command for turning off the light emitter;
• and
• a discriminator configured to discriminate, for each of the ink containers, whether the ink container is mounted in a corresponding mounting portion of the mounting portions using light reception information of the light receptor provided by the light emitted from the light emitter.