摘要:
A temperature and humidity compensating device is provided in electrophotographic apparatus including a photosensitive medium having a photoconductive layer, an image forming unit for forming an electrostatic latent image on the photosensitive medium, a heat source disposed near the photosensitive medium for heating the latter, a temperature detector disposed remotely from the heat source for detecting the temperature of the photosensitive medium, and control means for controlling the heating of the heat source so that the temperature of the photosensitive medium detected by the detector is not lower than the ambient temperature. Thus, the photosensitive medium may be prevented from deterioration due to falling temperature and moisture absorption, thereby permitting a normal image formation to be achieved.
摘要:
There is disclosed a method of maintaining at a desired level the temperature of components in a copying machine which is in its idle state. An electric power is supplied members in the machine having an impedance component after the copying operation has been stopped. The voltage of the power must be set at a value lower than the rated voltage of the members.
摘要:
An image forming apparatus having a device for setting numerical data related to image formation; a memory device for storing the numerical data set by the setting device; a device for executing the image formation in accordance with the numerical data stored in the memory device; a device for cancelling the numerical data stored in the memory device; and a device for inhibiting numerical data from being set by the setting device during an improper operational state of the apparatus.
摘要:
A printing or copying apparatus including a rotatable member, a number of processing devices for forming an electrostatic latent image on the rotatable member, for developing the latent image and for transferring the developed image from the rotatable member to an image transfer medium, a circuit for generating a series of clock signals in response to the rotation of the rotatable member, an element for repetitively generating control pulses in each process in accordance with the clock pulses, the control pulses determining the timing with which the processing devices are operated, and a controller for controlling desired operations of the processing devices in accordance with necessary ones of the control pulses.
摘要:
A diagnostic program determines whether the machine is in a proper or improper operational state, and the scanning device is moved to a predetermined position in response to the positioning program after the entry of the key inputs by the entry program, and a copying operation is then enabled. The key entry program is executed after the machine starts, and the positioning program is executed before the start of the scanning device and after the key input entry, wherein the scan is inhibited from exposing the recording medium when the diagnostic program determines that the state of the machine is improper, or when the positioning program determines that the scanning device is not in the predetermined position. Also, the scan is enabled for exposing the recording medium when the diagnostic program determines that the state of the machine is proper and the positioning program determines that the scanning device is in the predetermined position.
摘要:
A copying or printing machine includes processing units operative for reproducing a copy of an original, a read-only memory having program sequences stored which are composed of coded steps necessary for accomplishing printing or copying cycles, and a random-access memory in which a set of coded signals may be written in and read out. The processing units are actuated in response to coded signals in accordance with the program sequences.
摘要:
A printing or copying apparatus including a rotatable member, a number of processing devices for forming an electrostatic latent image on the rotatable member, for developing the latent image and for transferring the developed image from the rotatable member to an image transfer medium, a circuit for generating a series of clock signals in response to the rotation of the rotatable member, an element for repetitively generating control pulses in each process in accordance with the clock pulses, the control pulses determining the timing with which the processing devices are operated, and a controller for controlling desired operations of the processing devices in accordance with necessary ones of the control pulses. The apparatus includes control elements for processing elements to produce a set number of repeated images on transfer mediums from a single primary image formed on the rotatable member, and for retaining the primary image during an interruption for use in producing the set number of repeated images on resumption of operation.
摘要:
An image processing system includes a plurality of memories for storing (1) a procedure control program and (2) a task program for automatic closed loop control. Each program is grouped into a plurality of groups of programs in response to one of a plurality of selectable stages corresponding to priority required to execute an image processing. Each group of programs is task scheduled and one of the stages is selected. The task schedule is controlled in response to the selected stage and the group of programs is supervised corresponding to the selected stage.
摘要:
A multiple-mode copying apparatus provided with a copy mode selector; and a first controller for causing, in response to the function of the selector, the copying operation to be conducted according to a particular copying mode thus selected. An original document feeder is also provided together with a second controller for causing, when the feeder is set in an operable condition, the copying operation to be conducted according to a particular mode without a previous selection having been made by the selector.
摘要:
A temperature control system comprises a heat sink heatable upon application of electric power thereto, an AC power source for heating the heat sink, temperature detector means for detecting the temperature of the heat sink, and control means for controlling the electric power applied to the heat sink in accordance with an output signal from the detector means so that the heat sink maintains its required temperature. The control means is operable to cause application of a full power of the power source to the heat sink at the initial heating stage thereof and application of a partial power of the power source to the heat sink when the temperature thereof is in the vicinity of the required temperature.