Sharp Kabushiki Kaisha Corporation

Akira Tamagaki

Kazuyuki Ohnishi

Yoshiaki Ibuchi

Shougo Iwai

Masao Miyaza

Fuminori Miyoshi

Koichi Eto

Nobuyuki Ueda

Kenji Matsumoto

Tsutomu Taniguchi

Masami Oka

Syoichiro Yoshiura

Fumio Shimazu

Yoichi Shimazawa

Hideo Matsuda

Mitsuru Ogura

Akihiko Taniguchi

Naoyuki Kamei

Masato Tokishige

Kiyoshi Inoue

Takao Horiuchi

Junichi Kajiwara

Koichi Sumida

Toshihiro Okahashi

Yoshiharu Ueki

Yoshiomi Hamano

Hiroki Kai

Yoshigumi Maitani

The present invention provides an image processing apparatus which can promptly detect whether or not a jam has been removed in the case of occurrence of the jam such as a paper jam. A paper feeding apparatusincludes a paper feed tray, a pickup roller, a paper roller, a sorting roller, feeding rollers, resist rollers, a paper ejection roller, a passage detection sensor, an overlapped feeding detection sensorand a second detection apparatus. An image processing apparatusincludes a position detection portionfor detecting a location of a jam which occurs during feeding of recording paper, a determination portionfor determining a jam state based on a detection result of the position detection sensor, an examination portionfor examining whether the jam has been resolved and a resuming portionfor resuming the processing when an examination of the jam location by the examination portionis finished. If the position detection sensordetects the occurrence of the jam (S), the determination portion determines the jam state and simultaneously provides notification of the occurrence of the jam (S). If clearing work is finished (S), the examination portionfeeds a test sheet (S). It is detected whether or not the test sheet passes through the jam location (S), and the processing is resumed if it is detected within predetermined time (S).

Image processing apparatus

A power supply deviceincluding: a current sourcefor supplying current to a load circuitwhich operates on the supplied current, and a power switch unitbetween the current sourceand the load circuitto control passage of current, wherein: the power switch unitincludes a switching elementconnected in parallel with the open-close element, a power supply controllerincluding an open-close element controllerwhich controls operation of the open-close elementand a switching element controllerwhich controls operation of the switching element, and a voltage detectorwhich detects terminal voltage of the load circuit; and the power switch unitturns on the switching element before supplying current to the load circuit and closes the open-close element when the terminal voltage of the load circuit becomes almost equal to supply voltage.

Power supply device preventing inrush current

An image data input portion captures one line of data. The captured RGB data is color-converted into image information of a different set of colors, through the image processing portion. The converted data is written at a set up address on an HD. One page of image information is written onto the HD whilst the HD's address is sequentially incremented by 2. When two colors of data need to be retrieved in parallel from the HD, the data of the colors can be alternately written in. A CPU controls tandem recording units Pa, Pb, Pc and Pd so as to perform printing of respective colors, with a time shift one to the next of a period equal to the pitch of photoreceptor recording units.

Color image forming apparatus

An image-forming apparatus comprising image input means for inputting image data, storage means for successively storing the image data input by the image input means, on a input image data basis, feature-extracting means for producing histogram data per input image data which is stored in the storage means, and extracting the features of the respective image data on the basis of the histogram data, image-selecting means for selecting an image to be output, on the basis of the extracted features of the images, and image output means for forming the image selected by the image-selecting means on recording paper.

Image forming apparatus with image storage and image selection based on

In an image forming apparatus of the present invention, in the case where an image information reading mode is set by an operation panel, image information recorded on a rear surface of a document is read as a master CPU, via slave CPUs, instructs a double-sided automatic document transporting device to transport the document in such a manner that the rear surface of the document faces a document plate. The master CPU also instructs the slave CPU to check whether it is possible to recognize the image information thus read. In the case where the image information thus read can be recognized, the master CPU, via the slave CPU, sets the contents of the image information thus read from the rear surface of the document as image forming conditions to be used by an image reading section and an image forming section, thereby permitting to simplify the operation of setting the image forming conditions without causing the deterioration of the quality of a copy image.

Image forming apparatus and image forming method

A maintenance system for image-forming apparatuses equipped with image-scanning means for reading images of documents, and image-forming means for forming the images based on the image data and preset state data, including an external maintenance apparatus which is connected to an image-forming apparatus, adjusts the state data on the basis of the image data and the state data read from the image-forming apparatus, and sets the adjusted state data to the image-forming apparatus, and if necessary, further including a host apparatus which is connected to the external maintenance apparatus, adjusts the state data on the basis of the image data and the state data which are transmitted from the external maintenance apparatus, and sets the adjusted state data for the image-forming apparatus via the external maintenance apparatus.

Maintenance system for image-forming apparatuses

A data printing and outputting apparatus has a host device, and a digital copying machine connected with the host device through a communication line for printing and outputting data. The control section of the digital copying machine, monitoring the printing operation by the digital copying machine, maintains the communication between the host device and the digital copying machine when the trouble with the digital copying machine is a minor one which does not take time to solve, and stop the communication between the host device and the digital copying machine when the trouble is a major one which takes time to solve. The data printing and outputting apparatus, thus, can increase host device's job efficiency by reducing its workload in the communicating operation between the host device and the digital copying machine.

Data printing and outputting apparatus

An image processing apparatus includes a joining-portion processing section for combining partial images that have been read in a divided manner. Focused on partial document data predeterminately specified among a plurality of partial document data stored in an image memory, the joint-portion processing section performs a recognizing operation on the joints, a positioning operation and other operations beginning with the proximity of the specified partial document data. The partial images are then combined together to form one complete image. For example, in the case of copying an original document, which is of a size too large to be copied in one operation, on one sheet of paper in a reduced manner, it becomes possible to eliminate time consuming tasks such as trimming and pasting of the partial documents as well as calculating of the reduction rate. Thus, the efficiency of the operation is improved, and by specifying the partial document data from which the operation is started, it is possible to join the partial images accurately irrespective of the order of inputting the partial documents.

Joint-portion processing device for image data for use in an image

An image processing apparatus includes a scanner unit for reading an image of an original document, a memory which, if the image is read by the scanner unit in a divided manner as a plurality of partial images, stores the read partial images as respective partial document data, and a joint-portion processing section. The joint-portion processing section is for recognizing joints of the partial document data stored in the memory and for joining the partial document data according to the recognized joints.

Joint-portion processing device for image data in an image-forming

An image processing apparatus includes a joining-portion processing section for combining partial images that have been read in a divided manner. Focused on partial document data predeterminately specified among a plurality of partial document data stored in an image memory, the joint-portion processing section performs a recognizing operation on the joints, a positioning operation and other operations beginning with the proximity of the specified partial document data. The partial images are then combined together to form one complete image. For example, in the case of copying an original document, which is of a size too large to be copied in One operation, on one sheet of paper in a reduced manner, it becomes possible to eliminate time consuming tasks such as trimming and pasting of the partial documents as well as calculating of the reduction rate. Thus, the efficiency of the operation is improved, and by specifying the partial document data from which the operation is started, it is possible to join the partial images accurately irrespective of the order of inputting the partial documents.

A digital image forming apparatus wherein at least when an occurrence of trouble that required automatic switching of the power witch to the OFF position during operation of the image output operation when it is detected by a trouble detector, the image data inputted for an image output operation is stored in an internal memory which ensures the memory content even with the power switch switched to the OFF position. After the trouble is settled, the image output operation is continued with respect to the image data stored in the internal memory by the image output unit. As a result, an idle operation for reinputting the image data to be outputted through visualization by, for example, a reading operation of the document image can be eliminated.

Digital image forming apparatus

Joint portion processing device and method for enlarging and reproducing

An image processing apparatus including a scanner unit for reading an image of an original document, a memory which, if the image is read by the scanner unit in a divided manner as a plurality of partial images, stores the read partial images as respective partial document data, and a joint-portion processing section for recognizing joints of the partial document data stored in the memory and for joining the partial document data according to the recognized joints.

A method for controlling pressure applied to a press roller unit during image development in which a photosensitive sheet coated with microcapsules containing photosetting materials and coloring dyes is exposed to light and then superimposed on an image receiving sheet so that the superimposed sheets are pressed together so as to form an image on the image receiving sheet. The pressure is applied or released under the controls of the timers.

Growing community of inventors

Soraku-gun, Japan

Akira Tamagaki