Copying apparatus with variable stop position

Image forming apparatus comprising:

• a rotatable medium;
• means for forming an electrostatic latent image on a surface of said rotatable medium;
• means for developing the latent image into a toner image;
• means for transferring the toner image from said rotatable medium to a transfer material;
• first signal generating means for generating a series of pulse signals in accordance with the rotation of said rotatable medium;
• second signal generating means for generating a signal in response to actuation of a main switch or an image formation instruction switch of said apparatus;
• means for counting the pulse signals of said first signal generating means;
• means for generating control signals for starting a counting operation by said counting means in response to said second signal generating means and for controlling the image forming operation with said rotatable medium, electrostatic latent image forming means, developing means and transfer means in response to counting a predetermined number of pulse signals by said counting means.

Image forming apparatus comprising:

• a rotatable medium;
• means for forming an electrostatic latent image on a surface of said rotatable medium, said electrostatic latent image forming means including reciprocable means for the application for scanning image light from an original onto said rotatable medium;
• means for developing the latent image into a toner image;
• means for transferring the toner image from said rotatable medium to a transfer material;
• means for cleaning the surface of said rotatable medium for repetitive use of said rotatable medium;
• means for rotating said rotatable medium in synchronism with operation of said latent image forming means, developing means, transfer means and cleaning means;
• means for detecting that said reciprocal means is at a predetermined position along its reciprocating path of movement;
• and
• means for generating a signal for stopping the rotation of said rotatable medium after a predetermined time from the detection of said detecting means.

Image forming apparatus comprising:

• a rotatable medium;
• means for forming an electrostatic latent image on a surface of said rotatable medium, said electrostatic latent image forming means having reciprocable means for the application of scanning image light from an original onto said rotatable medium;
• means for developing the latent image into a visible image;
• means for transferring the visible image from said rotatable medium to a transfer material.;
• means for generating a series of pulse signals in accordance with the rotation of said rotatable medium;
• means for detecting that said reciprocable means is at a predetermined position along its reciprocating path;
• means for counting the pulse signals from said signal generating means;
• and
• control signal generating means for starting the counting operation of said counting means in response to an output from said detecting means and for generating a signal for controlling the image forming operation with said rotatable medium, electrostatic latent image forming means, developing means and transfer means in response to the counting of a predetermined number of pulse signals by said counting means.

Image forming apparatus comprising:

• a rotatable medium;
• means for forming an electrostatic latent image on a surface of said rotatable medium, said means including reciprocable means for the application of a scanning image light from an original onto said rotatable medium;
• means for developing the latent image into a visible image;
• means for transferring the visible image from said rotatable medium to a transfer material;
• first detecting means for detecting that said reciprocable means is at a predetermined position along its reciprocable path;
• means for generating a first signal in response to an output from said first detecting means and for generating a second signal after a predetermined period of time after the generation of the first signal;
• second detecting means for detecting when the leading edge of the transfer material reaches a particular position;
• set-reset means which is set in response to the first signal and reset in response to an output of said second detecting means;
• and
• means for generating a jam signal when said set-reset means is set at the time that the second signal is generated.