Patent application number | Description | Published |
20090261524 | Image Forming System, Image Forming Apparatus and Print Server - An image forming apparatus has: pluralities of sheet storage units; a printing unit; a sheet driving unit that feeds a sheet of paper from the sheet storage units to the printing unit; a group setting maintaining unit that forms a group of the sheet storage units; a residual sheet amount detecting unit that detects sheet empty on any of the sheet storage units in the group; a sheet storage switching control unit that controls the sheet driving unit to select another one of the sheet storage units in the same group for feeding a sheet, if the residual sheet amount detecting unit detects the sheet empty; and a sheet empty warning unit that warns a user of the sheet empty detected by the residual sheet amount detecting unit. | 10-22-2009 |
20090317120 | IMAGE FORMING APPARATUS AND PRINTING CONTROL METHOD - Provided is an image forming apparatus comprising: mixed printing control unit that performs, in a situation where the job instruction to perform single-sided printing and the job instruction to perform double-sided printing coexist in a plurality of jobs continuously, double-sided printing process with a blank page set to be printed on one of the one side and the another side of the sheet of paper when performing printing corresponding to the job instruction to perform single-sided printing. | 12-24-2009 |
20100189458 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a printing control unit that performs, between printing on a first printing side of a paper sheet and printing on a second printing side thereof, to print on the first printing side of a next paper sheet; a determination unit that determines, when the printing on the first printing side of the paper sheet is finished, whether a process of processing print data for the next paper sheet has been completed; and a standby control unit that causes a printing unit to delay a printing process on the second printing side of the paper sheet until printing on the first printing side of the next paper sheet is finished if it is determined that the process of processing the print data for the next paper sheet has not been completed. | 07-29-2010 |
20120188577 | Memory Management During Simplex and Duplex Printing with an Image Forming Apparatus - An image forming apparatus includes a rendering processing unit for generating rendering data by sequentially performing a rendering process on units of printing data corresponding to a job and storing the rendering data in a first area, an image processing unit for generating image data by sequentially performing an image process on units of rendering data in the page unit and storing the image data in a second area, an output control unit for outputting the image data in an order, and a memory full detection unit for detecting, if the output of subject units of the image data is incomplete when a specific time elapses since the rendering process on the subject units of the job is completed and only a part or all of the subject units of the image data are stored in the second area, that an image data storage amount exceeds an acceptable amount. | 07-26-2012 |
20120194869 | Image Forming Apparatus for Reducing Delay Which Occurs Due to Timings of Release and Allocation of a Video Buffer - This image forming apparatus includes: a development device configured to develop a toner image of a print image; an image carrier configured to transfer the toner image to a paper sheet; a print engine configured to control the development device and the image carrier; and a controller configured to control the print engine to perform printing. The print engine is further configured to provide a transfer-completion notice to the controller upon detecting completion of transferring the toner image from the image carrier to the paper sheet. The controller is further configured to store image data of the print image in a video buffer, read out the image data from the video buffer, provide control information based on the image data to the print engine, and release the video buffer upon receiving the transfer-completion notice. | 08-02-2012 |
20130135662 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus of the present disclosure includes a print queue, a job writing unit, a print execution unit, a connected-state detection unit, and a maximum-number-of-storable-pages changing unit. The print queue stores print jobs on a page basis. The job writing unit writes the print jobs into the print queue. The print execution unit executes print on a recording medium based on a page from the print queue, and suspends execution of the print in a case in which a print job other than a print job of currently executed printing is cancelled. The connected-state detection unit detects a connected state of extension devices affecting a length of a conveyance path of the recording medium. The maximum-number-of-storable-pages changing unit changes a maximum number of storable pages, that can be stored in the print queue, and changes the maximum number of storable pages, based on the connected state detected. | 05-30-2013 |
20140139879 | Image Forming Apparatus That Allows for a Multi-Operation - Modules include ASIC modules for printing and ASIC modules for the scanner. A permission time slot, in which a bus request for inter-buffer memory data transfer is permitted, is allocated to each of a first module group including the ASIC modules for printing and a second module group including the ASIC modules for the scanner, in each of a first multi-operation in which print and image scan functions are operated in parallel and a second multi-operation in which copy and image scan functions are operated in parallel. The permission time slot is defined so that a value obtained by dividing the permission time slot allocated to the first module group by the permission time slot allocated to the second module group is larger in the first multi-operation than in the second multi-operation. | 05-22-2014 |
20150062650 | IMAGE FORMING APPARATUS CAPABLE OF DRAWING STAMP ON RECORDING SHEETS, AND IMAGE FORMING METHOD - An image forming apparatus according to one aspect of the present disclosure includes pane information calculating portion, stamp drawing information calculating portion, and stamp drawing portion. Pane information calculating portion calculates pane information including recording sheet number information and drawing position information that indicate recording sheet number of recording sheet and drawing position in recording sheet at which an image of each page of obtained print data is to be formed. Stamp drawing information calculating portion calculates stamp drawing information including recording sheet number information and drawing position information that indicate recording sheet number of recording sheet and drawing position in recording sheet at which predetermined stamp is to be drawn in correspondence with pane information calculated by pane information calculating portion. Sstamp drawing portion draws predetermined stamp at drawing position in recording sheet indicated by stamp drawing information calculated by stamp drawing information calculating portion. | 03-05-2015 |