Patent application number | Description | Published |
20090268248 | CONTROL APPARATUS OF NON-VOLATILE MEMORY AND IMAGE FORMING APPARATUS - An apparatus has an external memory control apparatus for controlling rewriting of a memory. The external memory control apparatus allows the memory to store the number of formed monochromatic images and changes a rewriting frequency of the memory according to the number of formed monochromatic images. | 10-29-2009 |
20090296147 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - There is provided an image forming apparatus which shortens the time taken for circumference detection and measures the circumference at high precision without obstructing downsizing of the apparatus. To accomplish this, the image forming apparatus detects, at an arbitrary timing, the physical pattern of the image-formed surface of a rotation member that changes over time. In the second round, the image forming apparatus detects the second pattern at a timing a predetermined time after the arbitrary timing. By using the detected patterns, the image forming apparatus obtains information associated with the circumference of the rotation member. | 12-03-2009 |
20090317148 | IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING SAME - In full-color printing, one of first and second rotary members is activated with a time lag after the other of the first and second rotary members is activated such that the phase difference between the first and second rotary members is an adjusted phase difference. In addition, every time monochrome printing is performed, the time lag is changed. | 12-24-2009 |
20110242551 | IMAGE FORMING APPARATUS - An image forming apparatus that reduces the downtime due to image density control is provided. To accomplish this, the image forming apparatus obtains, using a sensor, background data at a plurality of measurement positions from a rotation member, and density data at a plurality of measurement positions from a patch image formed on the rotation member. Further, the image forming apparatus normalizes density data based on first background data and calculates first correction density data, and also normalizes density data based on second background data for which the measurement positions have been shifted from those of the first background data, calculates second correction density data, and acquires corrected density data in accordance with the first correction density data or the second correction density data that has a smaller variation. | 10-06-2011 |
20130290616 | CONTROL APPARATUS OF NON-VOLATILE MEMORY AND IMAGE FORMING APPARATUS - An apparatus has an external memory control apparatus for controlling rewriting of a memory. The external memory control apparatus allows the memory to store the number of formed monochromatic images and changes a rewriting frequency of the memory according to the number of formed monochromatic images. | 10-31-2013 |
Patent application number | Description | Published |
20090297178 | DEVELOPING DEVICE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member. | 12-03-2009 |
20090297207 | WINDING MEMBER, CARTRIDGE, AND CARTRIDGE ASSEMBLING METHOD - A winding member winds a seal member that seals an opening of a developer storage unit. The winding member includes a first holding portion having a first engaging portion, and a second holding portion having a second engaging portion to be engaged with the first engaging portion, configured to hold the sealing member between the first and second holding portions, wherein an end of the first holding portion and an end of the second holding portion are connected, so that the first holding portion and the second holding portion are relatively movable, and wherein the first engaging portion is engaged with the second engaging portion while the sealing member is held between the first holding portion and the second holding portion. | 12-03-2009 |
20120070184 | WINDING MEMBER, CARTRIDGE, AND CARTRIDGE ASSEMBLING METHOD - A winding member winds a seal member that seals an opening of a developer storage unit. The winding member includes a first holding portion having a first engaging portion, and a second holding portion having a second engaging portion to be engaged with the first engaging portion, configured to hold the sealing member between the first and second holding portions, wherein an end of the first holding portion and an end of the second holding portion are connected, so that the first holding portion and the second holding portion are relatively movable, and wherein the first engaging portion is engaged with the second engaging portion while the sealing member is held between the first holding portion and the second holding portion. | 03-22-2012 |
20120251159 | DEVELOPING DEVICE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member. | 10-04-2012 |
20130129390 | DEVELOPING DEVICE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member. | 05-23-2013 |