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| Number | Title | Issue Date |
| 4870526 | Automatic power turn-off apparatus for an electronic apparatus In an automatic power turn-off apparatus, a signal for turning off power supply is outputted from a timer IC when time set by a power-off time setting key arrives, whereby the power supply of an associated copying apparatus is turned off. In the turn-off ... | 09/26/1989 |
| 4855648 | Control device for copier or the like A digital device for controlling the power supply to various loads, by converting the state of the loads or the peak value of the power supply voltage into digital values and instantly determining the power supply to the loads.... | 08/08/1989 |
| 4777554 | Method and apparatus for detecting charger abnormality A charger abnormality detecting device and method uses a current detector for detecting a current flowing between a photoconductive drum and a charger arranged near the drum, a current detector for detecting a current flowing through the charger, and a vo... | 10/11/1988 |
| 4711569 | Original illumination device with an automatic illumination control In an original illumination device with an automatic illumination control according to the present invention, light from an exposure lamp (6) illuminates an original (1) and a reference density plate provided on the lower surface of a table (2), reflected... | 12/08/1987 |
| 4671647 | Image forming process control method and apparatus related to control while apparatus is in operational state An image forming apparatus for forming an image on a recording material wherein a control mechanism is provided for controlling the forming of images, or the cessation thereof in response to the detection of an improper state of operation of such apparatu... | 06/09/1987 |
| 4569585 | Image forming apparatus An image forming apparatus has a control unit which controls an image forming unit in accordance with a detection signal from an abnormal power condition detector which detects an abnormal condition of a power suply such as a voltage drop or a momentary b... | 02/11/1986 |
| 4441804 | Electrostatic copying apparatus including a switch checking system A copying apparatus includes a switch checking system for examining whether or not a switch to be operated through the operation of the copying apparatus is normally operated. The copying apparatus is provided with a switch to be operated through the oper... | 04/10/1984 |
| 4308941 | Logic for coin operated office copy machine vender In a wet cycle copier of the small tabletop mounted variety, conversion is made for vending in the absence of frequent key operator attention. Incidence of power interruption provides for a soak cycle to occur wherein the liquid toner is cycled through th... | 01/05/1982 |
| 4089602 | Automatic shutdown system for electrophotographic apparatus A flash tube is utilized as an imaging light source for a moving photoconductive belt or the like. A capacitor connected across the flash tube is charged from a power source. The flash tube is triggered when the voltage across the capacitor reaches a suff... | 05/16/1978 |
| 3999851 | Antijamming safety device for copying machine There is disclosed a safety device in a copying machine for detecting jamming of copying sheet materials to remove power only from the machine elements which might cause damage during subsequent operation of the machine. The copying machine is provided wi... | 12/28/1976 |
| 3970384 | Safety device for photocopying machine The exhaust of stocked copying paper and the failure in feeding copying paper are detected so that means for driving a feeding system may be immediately stopped, and no failure in feeding copying paper is detected and failure in discharging copying paper ... | 07/20/1976 |
| 3950680 | Electrostatographic diagnostics system In an electrostatographic copying system, where a common imaging surface is subjected to currents from several corona generators during copying, the actual output current of each corona generator is individually measured, and controlled, utilizing individ... | 04/13/1976 |
