Information forming apparatus

An information forming apparatus comprising:

• memory means for storing a series of picture element (pixel) signals, each pixel signal including a first signal representative of black information and/or a second signal representative of white information;
• dividing means for dividing said pixel signals stored in said memory means into blocks each composed of a predetermined plural number of pixel signals;
• means for producing and transmitting a control signal distinguishable from the second signal to identify the termination of the block in the event that the block is terminated with the second signals in succession, said control signal having a maximum amplitude greater than that of the modulated pixel signals;
• and
• means for modulating and transmitting all said pixel signals in a block in the event that the block is terminated with the first signal or the second signal in non-succession.

An information forming apparatus comprising:

• memory means for storing a series of picture element (pixel) signals, each pixel signal including a first signal representative of black information and/or a second signal representative of white information;
• dividing means for dividing said pixel signals stored in said memory means into blocks each composed of plural pixel signals of a predetermined number;
• and
• means for controlling the transmission of the pixel signals stored in said memory means in such a way that when the pixel signals in a block terminate with the first signal, all the pixel signals in a block are modulated and transmitted, when the pixel signals in a block include the first signal or signals therein and terminate with the second signal, all the pixel signals or the pixel signal existing before the last first siganl, if existing, are modulated and transmitted including the last first signal and the second signals or the second signal existing after the last first signal in the block are not transmitted, but only a control signal capable of being distinguished from the second signal to identify the termination of the block is transmitted, and when the pixel signals in block include no first signal in the block, none of the second signals as the pixel signals are transmitted, but only the control signal is transmitted;
• counting means for counting the number of first signals in the block divided by said dividing means;
• and
• means for producing and transmitting a control signal representative of termination of the block, said control signal being produced when the transmitted first signal is equal to the number of first signals counted by said counting means.

An information forming apparatus comprising:

• memory means for storing a series of picture element (pixel) signals, each pixel signal including a first signal representative of black information and/or a second signal representative of white information;
• dividing means for dividing said pixel signals stored in said memory means into blocks each composed of plural pixel signals of a predetermined number;
• counting means for counting the number of first signals in the block divided by said dividing means;
• means for producing and transmitting a control signal representative of termination of the block, said control signal being produced when the transmitted first signal is equal to the number of first signals counted by said counting means;
• and
• means for inhibiting the operation of said control signal producing and transmitting means and for modulating and transmitting all pixel signals in the event that the block is terminated with the first signal or the second signal in non-succession.