摘要:
A copying machine capable of color copying includes a filter apparatus for color-separating scanning light for scanning original images, and the original images are copied by electrophotographic process. The filter apparatus includes mirror filters having color separation filters of blue, green and red, respectively deposited on mirror surfaces and a half mirror, and these mirrors are arranged apart from each other at an angle of 90.degree., so that the apparatus as a whole has a cylindrical shape. The light scanned the original images is reflected by the filter mirrors, and latent electrostatic images corresponding to respective colors are formed on a photoreceptor drum.
摘要:
An electrophotographic image forming apparatus for forming a color toner image by a developing device and fixing the toner image by a fixing device including top and bottom rollers. When OHP mode for forming images on transparency sheets is selected, the time required for fixing the toner image is prolonged so as to assure the transparency of the image fixed to a recording member. That is, if the size of the transparency sheet is larger than a predetermined value, the transparency sheet is sent to a returning path which returns the recording member discharged from the fixing device to the fixing device again, and if the size of the transparency sheet is smaller than the predetermined value, the fixing device is operated more slowly than a case of forming images on non-transparency sheets. Further, when the OHP mode is selected, heating power is supplied to both top and bottom fixing rollers, and when the OHP mode is not selected, the heating power is supplied to the top fixing roller only.
摘要:
An image forming apparatus including a sheet supply assembly capable of successively supplying sheet media, an image producing stage for producing an image on each of the sheet media supplied from a sheet supply, a sheet discharge roller for discharging from the image producing stage each of the sheet media each having an image produced thereon, sensors for detecting an occurrence of jamming of a sheet medium between the sheet supply and discharge assemblies, a jam counter operative to count the number of occurrences of jamming of the sheet medium, the jam counter being activated each time an occurrence of jamming is detected by any of the sensors, and a control circuit for monitoring the operational conditions of the image producing stage responsive to a sheet medium supplied from the sheet supply assembly after an occurrence of jamming of a sheet medium has been detected by any of the sensors, and disabling the jam counter depending on the monitored operational conditions of the image producing stage.
摘要:
A data sending apparatus, on sending data to a receiving apparatus, searches its storage for a transmission method to the receiving apparatus. After sending data to the receiving apparatus, the sending apparatus receives from the receiving apparatus a transmission result including a transmission condition and capabilities of the receiving apparatus. When an error occurs during the data transmission, the sending apparatus reads the communication and processing capabilities of the receiving apparatus from the transmission result, and resends the data by a transmission method in accordance with the receiving apparatus. It then acquires the transmission result and stores the same in the storage.
摘要:
In marker edition mode, characters such as a character line is read in a closed area on a document marked with a marker. Then, the image data is analyzed to decide image processing means for marker edition such as coloring. A rectangular area including the image is recognized as image processing area. Even if the image is included partially in the closed area marked with a marker, a rectangular area including the image wholly can be specified as image processing area.
摘要:
A multiple color image forming apparatus, wherein colors or kinds of copying paper contained in paper feed cassettes as well as colors of developers contained in a plurality of developing devices are detected to prevent image forming, which is indistinguishable due to mismatching between the color or kind of copying paper and the color of developer, and the developing device containing the developer of suitable color for the color or kind of copying paper is automatically selected in response to the detected result of the color or kind of copying paper and the color of developer to prevent misforming of the image and to improve the operation easiness.
摘要:
A developing apparatus for use in an electrophotographic system, which is so arranged that concentration of the developing material is maintained constant irrespective of the sizes of the sheets used for recording, and is not varied by the densities of the images to be recorded, while troubles of the apparatus, the state of "toner empty", and troubles of a developing material replenishing device, etc. may be detected without the need for providing sensors exclusive for the purpose.
摘要:
An image editing apparatus capable of accurately registering a texture pattern from a document has the following configuration. The image data of a read document is displayed on a liquid crystal display. A user designates a point C therein and designates a range P2 for incorporating texture pattern around the point. The user also designates the size and range of the texture pattern used for displaying the texture using cursors S and E so that the texture patterns can be displayed smoothly connected when displayed serially in the vertical and horizontal direction.
摘要:
An image read by an image reader is rendered into binary data and then is stored in a document reading memory. In accordance with the color information provided to the document by a color marker which is stored in the document reading memory, a document image subjected to image processing is displayed on a color LCD. The user can check the color LCD before printing by a printer, such that photocopying by mistake and the like can be prevented.
摘要:
An image forming apparatus capable of making copies under either predetermined standard copy conditions or copy conditions optionally set by an operator. After the final key input, or at the completion of a copying process, a first timer is set to count a predetermined time period. When the first timer finishes counting, the copy conditions are automatically set to the standard conditions. The above apparatus is provided with a guidance mode for the purpose of explaining the method for setting the functions and copy conditions within the apparatus to an inexperienced operator. In the case where the guidance mode is set by the operator, a second timer is set to count a predetermined time period longer than the time period counted by the first timer. When the second timer finishes counting, the copy conditions are automatically set to the standard conditions.