Consumer appliance
摘要:
A consumer appliance with a body. A cartridge removably mounted to the body. The cartridge having a surface with a first colored region and a second colored region. A control circuit positioned within the body. A first emitter positioned on the body that projects a light at the first colored region. A second emitter positioned on the body that projects light at the second colored region. A first light sensor positioned on the body that sends a first signal to the control circuit based on a color of light reflected from the first colored region.
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