Abstract: A complex-type image forming device operative for a first function (copy function) and a second function (printer function or facsimile function) is reduced in waiting time for a user to use it for the copy function. More specifically, the image forming device comprises: an image forming main body operative in at least two different functions including a first function and a second function, a first output (copy output) having an image formed by said first function and a second output having an image formed by said second function being discharged from a same paper outlet; and a finisher including a first bin for receiving the first output (copy output) and a printer bin for receiving the second output, which are selectively set in the position at the paper outlet such that, when the second bin is in the position at the paper outlet, if an original to be copied is set, or if an automatic original feeder or a platen is raised, the second bin is replaced by the first bin.

Abstract: An electronic apparatus and method for updating data in a flash read only memory (ROM) in an electronic apparatus. The electronic apparatus, which may be an image forming apparatus having copying and printing functions, has a first board connected to an external device, and a second board connected to the first board. If flash ROM-updating data received from the external device is not data used for updating the flash ROM on the first board, this updating data is forwarded to the second board. On the basis of the updating data forwarded from the first board, the flash ROM of the second board is updated. The updated data may be forwarded to a third board if the data is not data for updating the flash ROM on the second board.

Abstract: A memory rewriting apparatus is provided which does not require ROMs other than a flash ROM while enabling use of interrupts, and in which a program for switching between a normal operation and a program rewriting operation is not complicated. In the memory rewriting apparatus of the present invention, a CPU 10 includes a port output terminal PT and selection output terminals CS0, CS1 and CS2. A memory map switching circuit 20 is provided which is connected with those output terminals, a flash ROM and a RAM. The CPU sets the port output terminal to an “L” level in a normal operation, and to an “H” level at the time of rewriting a flash ROM program, so that a memory map takes a condition as shown in FIG. 2(a) in the normal operation, whereas it takes another condition as shown in FIG. 2(c) in the program rewriting operation.

Abstract: An image forming apparatus, which reads an image of a document and forms the same image, including a display, a input means to be receive an input data, a ROM to store initial display data of the input means and compressed programs, a power source detecting circuit to detect that the power is ON and a CPU to read initial display data of the input means stored in a ROM and control the display of initial display data on the display of the control panel.

Abstract: This invention is to provide a four-series tandem type full-color copying machine in which the position of a conveyor belt is changed in the monochrome mode and color mode to prevent drums used for color copying from being brought into contact with the conveyor belt in the monochrome mode. Therefore, switching from the monochrome mode to the color mode or from the color mode to the monochrome mode is immediately started when the user places a document on an ADF and the specification of mode switching is made by use of a color/monochrome mode switching key, and as a result, time in which the user is kept waiting can be shortened.

Abstract: This invention is to provide a four-series tandem type full-color copying machine in which the position of a conveyor belt is changed in the monochrome mode and color mode to prevent drums used for color copying from being brought into contact with the conveyor belt in the monochrome mode. Therefore, switching from the monochrome mode to the color mode or from the color mode to the monochrome mode is immediately started when the user places a document on an ADF and the specification of mode switching is made by use of a color/monochrome mode switching key, and as a result, time in which the user is kept waiting can be shortened.

Abstract: Control-program data stored in an FROM are stored into a memory of an outside personal computer and then, program data which are input from the personal computer are written into the FROM. When the program data written into the FROM are in abnormal, the program data in the memory of the personal computer are written into in FROM.

Abstract: A memory rewriting apparatus is provided which does not require ROMs other than a flash ROM while enabling use of interrupts, and in which a program for switching between a normal operation and a program rewriting operation is not complicated. In the memory rewriting apparatus of the present invention, a CPU 10 includes a port output terminal PT and selection output terminals CS0, CS1 and CS2. A memory map switching circuit 20 is provided which is connected with those output terminals, a flash ROM and a RAM. The CPU sets the port output terminal to an “L” level in a normal operation, and to an “H” level at the time of rewriting a flash ROM program, so that a memory map takes a condition as shown in FIG. 2(a) in the normal operation, whereas it takes another condition as shown in FIG. 2(c) in the program rewriting operation.

Abstract: An electronic apparatus has a first board connected to an external device, and a second board connected to the first board. If flash ROM-updating data received from the external device is not data used for updating the flash ROM of the first board, this updating data is forwarded to the second board. On the basis of the updating data forwarded from the first board, the flash ROM of the second board is updated.

Abstract: A complex-type image forming device operative for a first function (copy function) and a second function (printer function or facsimile function) is reduced in waiting time for a user to use it for the copy function. More specifically, the image forming device comprises: an image forming main body operative in at least two different functions including a first function and a second function, a first output (copy output) having an image formed by said first function and a second output having an image formed by said second function being discharged from a same paper outlet; and a finisher including a first bin for receiving the first output (copy output) and a printer bin for receiving the second output, which are selectively set in the position at the paper outlet such that, when the second bin is in the position at the paper outlet, if an original to be copied is set, or if an automatic original feeder or a platen is raised, the second bin is replaced by the first bin.

Abstract: The invention provides and image forming apparatus adapted to form images on the opposite surfaces of a sheet of copying paper. More specifically, an image forming apparatus according to the invention is adapted for forming images on the opposite surfaces of a sheet of copying paper and includes a control device for controlling the location of the image formed on one of the opposite surfaces of the sheet of copying paper in correspondence to the location of the image formed on the other surface of the sheet of copying paper in order to minimize the mis-registration of the images formed on the opposite surfaces of the sheet of copying paper.

Abstract: The invention provides an image forming apparatus adapted to form images on the opposite surfaces of a sheet of copying paper. More specifically, an image forming apparatus according to the invention is adapted to forming images on the opposite surfaces of a sheet of copying paper and comprises a control means for controlling the location of the image formed on one of the opposite surfaces of the sheet of copying paper in correspondence to the location of the image formed on the other surface of the sheet of copying paper in order to minimize the mis-registration of the images formed on the opposite surfaces of the sheet of copying paper.

Abstract: An image forming apparatus is provided with a plurality of developing units containing developer used for supplying the developer to an image bearer. The image forming apparatus also includes a plurality of detectors for detecting densities of the developer in the plurality of developing units, and a replenishing unit for replenishing the plurality of developing units with a developer based on detection results output from the plurality of detectors. The image forming apparatus further includes a plurality of control units for executing a plurality of replenishment operation from the replenishment unit to a developing unit based on the developer density in the plurality of developing units, and a developer-empty state detecting unit for detecting a developer-empty state of the replenishment unit.

Abstract: In the present invention, predetermined lower bits of address data outputted to a page memory form a base section through a system address bus, a bus conversion section, and a general purpose address bus. In addition, other address data than the predetermined lower bits is supplied the page memory through the system address bus and the bus conversion section. Address data outputted from the base section to the general purpose bus device is supplied thereto through the system address bus, the bus conversion section, and the general purpose address bus.

Abstract: A method and apparatus for driving a CCD image sensor is provided in which the time period of subscan can be a continuous value responsive to the amount of image information received by the CCD image sensor. The control time periods of the CCD image sensor are separated into first control time periods which are fixed in duration and second control time periods which are variable. The first and second control time periods alternate. Image information signals are obtained by exposure of the CCD image sensor during the first control time periods and are outputted during the second control time periods. These second control time periods vary in accordance with the amount of image information received by the CCD image sensor during the first control time periods.

Abstract: The instant invention relates to a method and apparatus for driving an electrostatic recording head for recording images on a medium comprising a plurality of pin electrodes, the pin electrode arrays are separated into alternate even and odd arrays positioned on said recording head (A.sub.1, B.sub.1, A.sub.2, B.sub.2 . . . A.sub.k, B.sub.k . . . where A.sub.k are odd arrays and B.sub.k are even arrays), a plurality of control electrodes, each positioned adjacent one or more associated pin electrodes, each pin electrode array and associated control electrodes, when energized, producing the images, the pin and control electrodes are controlled by separate order control circuits which control the pin electrostatic arrays and the control electrode arrays for producing the images in the following order alternating between odd and even arrays:A.sub.N+1, B.sub.1 . . . A.sub.2N, B.sub.N,A.sub.1, B.sub.N+1, . . . A.sub.N, B.sub.2N,A.sub.3N+1, B.sub.2N+1 . . . A.sub.4N, B.sub.3N,A.sub.2N+1, B.sub.3N+1 . . . A.sub.