Color image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorToshihiro Kadowaki
Life of this patent
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Abstract
A color image forming apparatus provided with an input terminal for plural input color component signals, an independent input terminal for an output color component control signal, a processing circuit for processing the input color component signal to obtain plural output color component signals specific to the apparatus, and image forming means for forming each color component image according to the value of each output color component signal, in which the processing circuit is capable of controlling the calculation of output color component control signals according to the value of the output color component control signal. In one illustrated embodiment, the output color component signal is adapted to maintain a black output color component at a predetermined value.
Claims50
A color image forming apparatus comprising:
- (a) input means for entering plural input color component signals and an output color component control signal, wherein said output color component control signal is input independently of said input color component signals;
- (b) process means for processing said plural input color component signals for obtaining plural output color component signals for obtaining plural output color component signals specific to the apparatus;
- and
- (c) control means for controlling the output color component signals from said process means, according to said output color component control signal.
An interface adapted for use in a color image forming apparatus provided with process means for processing plural input color component signals to obtain output color component signals, comprising:
- (a) first input means for entering said plural input color component signals;
- and
- (b) second input means for entering an output color control signal for controlling the output of said output color component signals;
- wherein said first input means is independent of said second input means.
A color image forming apparatus comprising:
- (a) input means for entering plural input color component signals and an output color component control signal;
- (b) process means for processing said plural input color component signals for obtaining plural output color component signals specific to the apparatus;
- and
- (c) control means for controlling the output color component signals from said process means, according to said output color component control signal;
- wherein said input means inputs said input color component signal and said output color component control signal by executing a communication including a command with an auxiliary apparatus.
An interface adapted for use in a color image forming apparatus provided with process means for processing plural input color component signals to obtain output color component signals, comprising:
- (a) first input means for entering said plural input color component signals;
- and
- (b) second input means for entering an output color control signal for controlling the output of said output color component signals;
- wherein each of said first input means and said second input means inputs said plural input color component signals and said output color component control signal by executing a communication including a command with an auxiliary apparatus.
Dependencies are inferred from the claim text.