Control device of copying machine

Claim 2

A control device for a copying machine comprising: a switch movable from a first state to a second state when the copying machine has been operated for a predetermined number of cycles; an indicator for indicating that the machine has been operated for said predetermined cycles, said indicator being inoperable when said switch is in said first state and operable when said switch is in said second state; a stop signal causing means for generating signals for stopping the operation of the machine, said stop signal causing means being inoperable when said switch is in said first state and operable when said switch is in said second state; and means for making said stop signal causing means inoperable when said switch is in said second state without changing the second state to the first state.

Claim 3

A control device for a copying machine comprising: a switch movable from a first state to a second state when the machine has been operated for a predetermined number of cycles; an indicator for indicating that the machine has been operated for said predetermined cycles, said indicator being inoperable in the first state and operable in the second state; stop signal causing means for generating signals for stopping the operation of the machine; electromagnetic means for electromagnetically making the stop signal causing means operable when energized and inoperable when deenergized; a condenser adapted to be electrically chargable in the first state and dischargable through the electromagnetic means when the switch is moved from the first state to the second state, said condenser energizing the electromagnetic means when discharged after being charged in the first state whereby the electromagnetic means operates the stop signal causing means in the second state whereby the machine operation is automatically stopped; energizing means for keeping the electromagnetic means energized once the electromagnetic means is energized by the discharging of the condenser; and deenergizing means for deenergizing the electromagnetic means without changing the state of the switch even when said energizing means is operable.

Claim 4

A control device for a copying machine comprising: a switch movable from a first state to a second state when the machine has been operated for a predetermined number of cycles; an indicator for indicating that the machine has been operated for said predetermined cycles, said indicator being inoperable in the first state and operable in the second state; stop signal causing means for generating signals for stopping the operation of the machine; electromagnetic means for electromagnetically making the stop signal causing means operable when energized and inoperable when deenergized; a condenser adapted to be electrically chargable in the first state and dischargable through the electromagnetic means when the switch is moved from the first state to the second state, said condenser energizing the electromagnetic means when discharged after being charged in the first state whereby the electromagnetic means operates the stop signal causing means in the second state whereby the machine operation is automatically stopped; energizing means for keeping the electromagnetic means energized once the electromagnetic means is energized by the discharging of the condenser; and deenergizing means for deenergizing the electromagnetic means without changing the state of the switch even when said energizing means is operable.

Claim 5

A control device for a copying machine comprising: a first switch being a main switch of the machine; a second switch connected to the first switch in series, said second switch being movable from a first state to a second state when the machine has been operated for a predetermined number of cycles; an indicator for indicating that the machine has been operated for said cycles, said indicator being connected to the first switch through the second switch in the second state in series; a third switch opened; first means for electromagnetically controlling the third switch, said first means being connected in parallel with the indicator and adapted to close said third switch when energized; a condenser connected to the first switch in series through the second switch in the first state; a fourth switch normally opened; second means for electromagnetically controlling the fourth switch, said second means being connected in parallel with the condenser through the third switch in the closed position thereof and also connected to the first switch in series through the fourth switch in the closed position thereof and adapted to close the fourth switch whEn energized; whereby, when the third switch is closed, after the condenser is charged, the second means is energized by discharging the condenser so as to close the fourth switch, said second means being kept energized through the closed fourth switch thereby maintaining the fourth switch closed; and a third means for generating signals for stopping the operation of the machine without opening the first switch, said third means comprising the fourth switch and being adapted to be operable in the closed position of the fourth switch and inoperable in the opened position of the fourth switch.

Claim 6

A control device for a copying machine comprising: a first switch being a main switch of the machine; a second switch connected to the first switch in series, said second switch being movable from a first state to a second state when the machine has been operated for a predetermined number of cycles; an indicator for indicating that the machine has been operated for said cycles, said indicator being connected to the first switch through the second switch in the second state in series; a third switch opened; first means for electromagnetically controlling the third switch, said first means being connected in parallel with the indicator and adapted to close said third switch when energized; a condenser connected to the first switch in series through the second switch in the first state; a fourth switch normally opened; second means for electromagnetically controlling the fourth switch, said second means being connected in parallel with the condenser through the third switch in the closed position thereof and also connected to the first switch in series through the fourth switch in the closed position thereof and adapted to close the fourth switch whEn energized; whereby, when the third switch is closed, after the condenser is charged, the second means is energized by discharging the condenser so as to close the fourth switch, said second means being kept energized through the closed fourth switch thereby maintaining the fourth switch closed; and a third means for generating signals for stopping the operation of the machine without opening the first switch, said third means comprising the fourth switch and being adapted to be operable in the closed position of the fourth switch and inoperable in the opened position of the fourth switch.

Claim 7

A control device for a copying machine according to claim 3 wherein the device further comprises a resistor connected in parallel with the condenser.

Claim 8

A control device for a copying maching according to cliam 3 wherein the fourth switch is manually openable when electromagnetically closed by the energized second means.

Claim 9

A control device for a copying maching according to cliam 3 wherein the fourth switch is manually openable when electromagnetically closed by the energized second means.