摘要:
An image forming apparatus provided with a sheet feeding tray to store sheets for image forming; a sheet feeding section to feed the sheets form the sheet feeding tray so as to supply the sheets for the image forming; and a control section to individually administer remaining sheets stored in the sheet feeding tray in advance and replenishment sheets replenished when the sheet feeding tray is replenished with the sheets in a state where the sheets stored in the sheet feeding tray in advance is remaining. Whereby, a JOB can be continued or aborted appropriately with reference to information and remaining amounts of remaining sheets and replenishment sheets in one sheet feeding tray, since the information and the remaining amounts are administered individually.
摘要:
An image forming apparatus includes: a sheet conveyance section having a sheet storing member to store sheets that have been aligned in a prescribed placing direction, which conveys a sheet stored in the sheet storing member; an image forming section having an image carrier, which forms an image on the image carrier; an image transfer section which transfers the image formed on the image carrier onto a sheet conveyed by the sheet conveyance section; a winding detection section which detects whether or not the sheet conveyed by the sheet conveyance section is wound around the image carrier; and a controller which controls to instruct an operator to conduct a change operation of the placing direction of the sheets stored in the sheet storing member based on a sheet winding detection signal outputted from the winding detection section.
摘要:
When images are to be printed on two, front and lower surfaces of a sheet, in order to register the position of the image on the front surface and the position of the image on the back surface highly accurately, an image printing apparatus of this invention includes an image printing section which forms the image for the front surface of the sheet as well as an image of a reference mark on a photosensitive member at one portion in a region outside an image printing region and transfers the images onto the front surface of the sheet, a fixing unit which fixes the transferred images on the sheet, a line sensor which detects the reference mark after fixing printed on the front surface of the sheet, an arithmetic operating section which obtains a shrinkage factor of the sheet on the basis of a size of the reference mark before fixing and a size of the detected reference mark after fixing and calculates a position and magnification of the image to be printed on the back surface on the basis of the shrinkage factor, and a control section which performs control operation to print the image on the back surface of the sheet on the basis of the calculated position and the calculated magnification.
摘要:
An image printing apparatus, which can correct variation in inter-sheet distance at the time of conveyance of transfer sheets, comprising an image printing section which performs image printing by sequentially conveying a plurality of transfer sheets at predetermined intervals at a first convey velocity and performing transfer and fixing of a toner image on each transfer sheet, a timepiece section which measures a time required for the image printing section to perform image printing on the each transfer sheet, and a delivery convey section which receives each transfer sheet on which image printing is performed by the image printing section and delivers the each transfer sheets while adjusting intervals therebetween by conveying the each transfer sheets upon changing the convey velocity to a second convey velocity set on the basis of the measured time required for the image printing on the each transfer sheet.
摘要:
Disclosed is a sheet feeding apparatus comprises: a multiple feed detecting section; a temperature detecting section; and a control section. The multiple feed detecting section has an ultrasonic transmitter and an ultrasonic receiver arranged on opposite sides of the conveyance path for conveying the sheets, and detects the feed of multiple sheets by, transmitting an ultrasonic wave from the ultrasonic transmitter to the ultrasonic receiver through at least one sheet traveling along the conveyance path, and comparing the ultrasonic wave received by the ultrasonic receiver with a reference level. The temperature detecting section detects a temperature of the apparatus, and the control section adjusts a detecting condition of the multiple feed detecting section based on the detected temperature.
摘要:
An image forming apparatus includes: a recording section which records therein image data, and processing position information of a sheet; an image forming section which forms an image on the sheet on the basis of the image data recorded in the recording section; a position detector which detects a pre-processed position on a sheet to be fed; and a controller which compares the processing position information with a value detected by the position detector, judges whether or not an abnormality is present, and corrects an image forming position of the image forming section for each block of a plurality of blocks surrounded by either processed portions of a sheet or a processed portion and an edge of the sheet.
摘要:
An image forming system having a preceding stage apparatus for forming a toner image on a paper sheet, and a subsequent stage apparatus, connected downstream of the preceding stage apparatus, for forming a toner image on the paper sheet ejected from the preceding stage apparatus, includes: a first maintenance counter correlating with a part, subject to maintenance, in the preceding stage apparatus; a second maintenance counter correlating with a part, subject to maintenance, in the subsequent stage apparatus, in response to the first maintenance counter; a counter control section for increasing a count value of the first and the second maintenance counters by a first and a second designated value, respectively, in response to formation of a toner image on the paper sheet; and a setting section for setting the first and second designated values individually based on an operation mode of the image forming system.
摘要:
A sheet of paper is set on a paper-supplying portion of a top surface gloss processing apparatus while its top surface is faced upward. A gloss level sensor measures gloss level of the top surface of the sheet of paper. Data of this measurement is compared with a previously set threshold value. Based on this comparison, it is determined whether or not the gloss processing has been performed on the top surface thereof. When determining that the gloss processing has been already performed, a warning message such that the gloss processing has been already performed on the top surface of the sheet, of paper is displayed on a screen. On the other hand, when determining that the gloss processing has not performed, the top surface gloss processing apparatus performs the gloss processing on the top surface thereof.
摘要:
A sheet of paper is set on a paper-supplying portion of a top surface gloss processing apparatus while its top surface is faced upward. A gloss level sensor measures gloss level of the top surface of the sheet of paper. Data of this measurement is compared with a previously set threshold value. Based on this comparison, it is determined whether or not the gloss processing has been performed on the top surface thereof. When determining that the gloss processing has been already performed, a warning message such that the gloss processing has been already performed on the top surface of the sheet, of paper is displayed on a screen. On the other hand, when determining that the gloss processing has not performed, the top surface gloss processing apparatus performs the gloss processing on the top surface thereof.
摘要:
A sheet supply device including an elevation section for up and down movement of the sheet bundle accommodated on the sheet placement table, blow sections for blowing air to the upper side surface of the sheet bundle to float up the sheet from the aforementioned sheet bundle, and a non-contact sheet detection sensor for detecting the existence or nonexistence of a sheet at the predetermined position of the aforementioned sheet placement table. The elevation drive motor is controlled in such a way as to move the sheet bundle up and down, based on the frequency or ratio of the sheet existence in the detection result of the sheet detection sensor in the operation mode of the blow section.