Patent application number | Description | Published |
20090091182 | IMAGE FORMATION APPARATUS CAPABLE OF RECEIVING POWER FROM A PLURALITY OF POWER SOURCES AND CONTROL METHOD PERFORMED IN SUCH IMAGE FORMATION APPARATUS - A power supply unit selects one of drive power provided from an AC/DC conversion unit and that provided from a separation unit and outputs the selected drive power to a control unit and a transmission and reception unit continuously. If the AC/DC conversion unit and the separation unit both supply their respective drive powers, the drive power that has a higher voltage value, i.e., the first drive power, is selectively output. When the first drive power supplied is stopped, a diode transitions from the on state to the off state and a diode transitions from the off state to the on state. As a result the second drive power is selectively output. | 04-09-2009 |
20100073703 | IMAGE FORMATION APPARATUS CONNECTED TO POWER SUPPLYING DEVICE CAPABLE OF SUPPLYING POWER VIA DATA COMMUNICATION LINE, CONTROL METHOD PERFORMED BY SAME IMAGE FORMATION APPARATUS AND STORAGE MEDIUM STORING PROGRAM EXECUTED BY SAME IMAGE FORMATION APPARATUS - A message displaying area displays a message “DATA HAS BEEN RECEIVED”, which indicates that a print instruction has been received, as well as a message “CONDUCT AUTHENTICATION”, which urges a user to enter identification information. On the other hand, an input area displays a form in which a “username” and a corresponding “password” are to be entered. Specifically, a display presents an entry screen for identification information, including messages indicating that a print instruction has been received and authentication is required. | 03-25-2010 |
20110084436 | POST-PROCESSING APPARATUS, CONTROL METHOD THEREOF AND IMAGE FORMING SYSTEM - When a sheet is loaded to the sheet tray, the position of a trailing edge regulating section is set in response to the size of an insert sheet. Owing to this, the print sheet ejected from the ejection rollers onto the sheet tray falls onto the surface of the insert sheet. Further, when a booklet with an insert sheet placed therein is produced, an insert sheet is supplied to the sheet tray along the second conveying path. The shift amount of the execution position of center folding or the execution position of center stitching with respect to the sheet bundle is calculated in conformity to the finishing form of the booklet containing the insert sheet. | 04-14-2011 |
20110116128 | IMAGE FORMING SYSTEM WHICH INCLUDES IMAGE PROCESSING DEVICE AND PLURAL IMAGE FORMING DEVICES - An image forming system includes MFPs and a PC. A control unit in the PC, on receipt of information on a print job, transmits it to each MFP. A CPU in each MFP checks an operating state, a fixing roller temperature, and others in the MFP, calculates power consumption required for executing the print job on the basis of the machine conditions of the MFP and the information on the print job, and transmits the calculation result to the PC. The control unit in the PC displays the required power calculated in each MFP. This allows a user to select an MFP for executing the print job, taking into consideration the required power in each MFP. Accordingly, the image forming device for use in printing can be specified in accordance with the states of the individual image forming devices, so that power saving can be promoted more effectively. | 05-19-2011 |
20120104689 | SHEET DISCHARGING TRAY DEVICE AND IMAGE FORMING SYSTEM PROVIDED THEREWITH - A sheet discharging tray device includes: a discharging section from which a sheet is discharged; a discharging tray on which the sheet discharged from the discharging section is stacked sequentially; a tray drive section which drives the discharging tray in a tray shift direction that is perpendicular to a sheet discharging direction from the discharging section with reference to a sheet surface; a controller which conducts a tray shift operation that shifts a position of the discharging tray under a condition of the number of sheets stacked on the discharging tray, and a sheet detection section which detects an alignment deviation in the tray shift direction. The controller changes an operation status of the discharging tray when a tray shift operation is conducted and changes a discharging operation of a sheet to the discharging tray, based on a detected result of the sheet detection section. | 05-03-2012 |
20120250058 | PRINTING CONTROL APPARATUS, IMAGE FORMING APPARATUS AND PRINTING SYSTEM - A printing control apparatus connected via a network with one or more of image forming apparatuses includes: a power source detection section which detects an image forming apparatus turned on; and a setting section which sets a mode shift time for shifting from a normal power mode to a power saving power mode a power consumption of which is less than a power consumption of the normal power mode of each of the image forming apparatuses; and a notice section which notices the set mode shift time to the image forming apparatus corresponding to the mode shift time, wherein the setting section changes the mode shift time when a plurality of image forming apparatuses which has been turned on is connected with the network, by comparing with a case when the network is connected with only one image forming apparatus turned on. | 10-04-2012 |
20130331246 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus is described which is used to process a sheet transferred from an image forming apparatus such as a copying machine. A sheet processing apparatus is provided with a punching unit which cuts off part of a sheet conveyed along a conveying route, and a humidifying unit located on this conveying route in the upstream side of the punching unit and configured to humidify a predetermined area which is selected from the entire area of the sheet and includes punch areas to be cut off from the conveyed sheet by the punching unit. The cutting wastes can thereby be electrostatically discharged without leaving the sheet excessively wet. | 12-12-2013 |
20140348528 | FIXING UNIT AND IMAGE FORMING APPARATUS - An image forming apparatus is provided with a fixing unit in which flickers can be effectively reduced while inhibiting electric current imbalance. The fixing unit comprises a fixing heater, a switching unit for switching the fixing heater on/off with an AC power source, and a control unit which controls the switching unit to switch in units of the half wave period of the AC power source AC, and a storing unit for storing a plurality of energization patterns which define the ways of performing the switch control. Each energization pattern corresponds to a control cycle which contains a three or more odd number of the half wave periods each of which is either an OFF period and an ON period, and all the half wave periods of the smaller in number of the ON periods and the OFF periods are not successively arranged. | 11-27-2014 |
20140363185 | IMAGE FORMING APPARATUS - An image forming apparatus comprises a drive motor configured to rotate the lower pressure roller, a torque generation unit for generating a breaking force in the direction to hinder rotation of a fixing belt in order to adjust the differential speed between the surface speed of the fixing belt and the surface speed of the lower pressure roller | 12-11-2014 |
20150063850 | FIXING APPARATUS AND IMAGE FORMING APPARATUS - A fixing apparatus includes an upper pressure roller, a fixing belt, a lower pressure roller which cooperates with the upper pressure roller and the fixing belt for forming a fixing nip portion which holds and conveys a sheet with a toner image therebetween; a drive motor which rotates the lower pressure roller; a plurality of motors each of which is capable of generating a braking force in the direction to hinder rotation of the upper pressure roller and an assist force in the direction to assist rotation of the upper pressure roller; a torque generation unit which generate an effective braking force in the direction to hinder rotation of the fixing side member as a combination of the braking and assist forces; and a control unit which switches the motor used to generate the braking force among the plurality of motors in accordance with a predetermined condition. | 03-05-2015 |
20150063851 | FIXING APPARATUS FOR FIXING IMAGES FORMED ON SHEET AND IMAGE FORMING APPARATUS PROVIDED WITH THIS FIXING APPARATUS - A fixing apparatus comprises a fixing nip width adjustment unit configured to adjust the fixing nip width of a fixing nip portion; a braking force generation motor configured to generate an effective braking force in the direction to hinder rotation of an upper pressure roller; and a control unit configured to perform restore control for rotating the upper pressure roller and a lower pressure roller by driving a drive motor and speed keeping control for keeping the rotational speed of the braking force generation motor no higher than a predetermined speed during the restore control in a non-fixing period in which the fixing nip width adjustment unit is controlled to decrease the fixing nip width smaller than in a fixing period and a braking force is applied to the fixing side member by the braking force generation motor. | 03-05-2015 |