Patent application number | Description | Published |
20110064453 | DEVELOPMENT DEVICE AND IMAGE FORMING DEVICE HAVING THE SAME - A development device includes a casing storing development agent, a developing member that is rotatably supported in an opening of the casing and configured to hold development agent thereon, a first seal member that extends in a first direction parallel to a rotational axis of the developing member and has a base end at a side of the casing and a free end contacting an entire length, in the first direction, of the developing member, and an elastic member disposed between the casing and the free end so as to face the entire length, in the first direction, of the developing member. The elastic member presses the free end against the entire length, in the first direction, of the developing member. | 03-17-2011 |
20110064454 | DEVELOPMENT DEVICE AND PRINTER HAVING THE SAME - A development device has a casing configured with a first frame and a second frame. The first frame includes attachment surfaces to which a regulating member is attached. A facing surface of the second frame is disposed between the attachment surfaces, in a predetermined plane including the attachment surfaces, and configured to face a portion of the regulating member between the attachment surfaces. A seal member is disposed between the regulating member and opposite surfaces including the attachment surfaces and the facing surface, and configured to seal first gaps each of which is formed between the facing surface and one of the attachment surfaces, in a first direction parallel to a rotational axis of a developing member rotatably supported by the casing. | 03-17-2011 |
Patent application number | Description | Published |
20100092206 | Developing Device - A developing device includes a developer carrier which carries a developer, a developing unit housing which rotatably supports the developer carrier, a side seal member which comes into slidable contact with both ends of the developer carrier, a sheet-like elongated seal member which extends in the axial direction of the developer carrier so as to come into slidable contact with the developer carrier, a side seal attachment surface which is formed in the developing unit housing and to which the side seal member is attached, and a support portion which is formed in the developing unit housing and protrudes toward the developer carrier from the side seal attachment surface to support the elongated seal member. The elongated seal member is attached onto the support portion in a state where both ends thereof overlap the side seal member and are opposite the side seal attachment surface. A filler is filled in a gap surrounded by the elongated seal member, the side seal member, the support portion, and the side seal attachment surface. A protrusion for suppressing the spread of the filler is formed at the side seal attachment surface at a predetermined interval from the support portion. | 04-15-2010 |
20110255901 | Developing Device and Image Forming Apparatus - A developing device comprising: a developing roller; a casing that includes a developer storage unit; a roller supporting unit and an opening; and a seal member that is mounted on the casing outside the opening in the central axis direction and faces an end portion of the developing roller, the seal member configured to rub against the end portion of the developing roller when the seal member is elastically deformed, wherein the casing includes: an outer projection that is provided along a moving direction of the developing roller to abut on an outer end portion of the seal member, the outer projection protruding in a position which is inside the roller supporting unit; and an inner projection provided along the outer projection so as to abut on an inner end portion of the seal member, the inner projection protruding in a position which is outside the opening. | 10-20-2011 |
20110318028 | Image Forming Apparatus - An image forming apparatus includes: a first photosensitive drum for a monochrome printing mode; second and third photosensitive drums for a color printing mode; a moving unit moving a medium from the first photosensitive drum via the second photosensitive drum to the third photosensitive drum; charger devices for charging the photosensitive drums; transfer devices for transferring developer images on the photosensitive drums to the medium; and a control unit configured to control charging biases of the charger devices and transfer biases of the transfer devices. The control unit executes, in the monochrome printing mode, an energy saving control in which absolute value of charging bias applied to the charger device for the third photosensitive drum is smaller than an absolute value of a charging bias applied to the charger device corresponding to the second photosensitive drum. | 12-29-2011 |
20120269538 | Developing Device - A developing device includes a developer carrier, a developing unit housing which rotatably supports the developer carrier, a side seal member which comes into slidable contact with both ends of the developer carrier, a sheet-like elongated seal member which extends in the axial direction of the developer carrier so as to come into slidable contact with the developer carrier, a side seal attachment surface which is formed in the developing unit housing and to which the side seal member is attached, and a support portion which is formed in the developing unit housing and protrudes toward the developer carrier from the side seal attachment surface to support the elongated seal member. The elongated seal member is attached onto the support portion in a state where both ends thereof overlap the side seal member and are opposite the side seal attachment surface. | 10-25-2012 |
20120269539 | Developing Device - A developing device includes a developer carrier, a developing unit housing which rotatably supports the developer carrier, a side seal member which comes into slidable contact with both ends of the developer carrier, a sheet-like elongated seal member which extends in the axial direction of the developer carrier so as to come into slidable contact with the developer carrier, a side seal attachment surface which is formed in the developing unit housing and to which the side seal member is attached, and a support portion which is formed in the developing unit housing and protrudes toward the developer carrier from the side seal attachment surface to support the elongated seal member. The elongated seal member is attached onto the support portion in a state where both ends thereof overlap the side seal member and are opposite the side seal attachment surface. | 10-25-2012 |
20140105635 | Casing Projections of an Image Forming Apparatus Configured to Support a Seal of a Developing Device - A developing device for an image forming apparatus may include a seal and a casing to prevent leakage of developer. In some examples, the seal member may include multiple side surfaces while the casing may include projections that may abut and contact various surfaces of the seal member. According to one arrangement, the casing may include first, second and third protrusions, where each protrusion is configured to abut and contact a corresponding surface of the seal member. Additionally, the second projection may protrude in a position inside of the first projection while the third projection may protrude in a position between the first and second projections. | 04-17-2014 |
Patent application number | Description | Published |
20120206786 | LASER LIGHT SHAPING AND WAVEFRONT CONTROLLING OPTICAL SYSTEM - A laser light shaping and wavefront controlling optical system | 08-16-2012 |
20120206924 | LASER LIGHT SHAPING OPTICAL SYSTEM - A laser light shaping optical system | 08-16-2012 |
20120326041 | ELECTROMAGNETIC WAVE DETECTION DEVICE - Probe light pulses output from a light source are input to an optical effect unit after the beam diameter is changed by a beam diameter changing optical system, the pulse front is tilted by a pulse front tilting unit, and the beam diameter is adjusted by a beam diameter adjusting optical system. To the optical effect unit, probe light pulses output from the beam diameter adjusting optical system are input, and an electromagnetic wave being an object to be detected is also input. Optical characteristics of the optical effect unit change due to propagation of the electromagnetic wave, and probe light pulses affected by the change in optical characteristics are output from the optical effect unit. The probe light pulses output from the optical effect unit are detected by a photodetector. | 12-27-2012 |
20140008540 | TERAHERTZ-WAVE SPECTROMETER AND PRISM MEMBER - By mating a main part with a first prism part or second prism part, a terahertz-wave spectrometer can easily switch between optical paths of a terahertz wave T propagating within a spectroscopic prism. When the main part mates with the first prism part, the terahertz wave T incident on an entrance surface passes through a depression, so as to be reflected by an arrangement part, whereby reflection spectrometry can be performed. When the main part mates with the second prism part, the terahertz wave T incident on the entrance surface is refracted by the depression, so as to pass through an object to be measured within a groove, whereby transmission spectrometry can be preformed. | 01-09-2014 |
20140008541 | TOTAL REFLECTION SPECTROSCOPIC MEASUREMENT METHOD - A total reflection measurement method using a total reflection spectrometer | 01-09-2014 |
20140014840 | TERAHERTZ-WAVE SPECTROMETER - In a terahertz-wave spectrometer, a spectroscopic prism is provided with a prism part slidable with respect to a main part thereof. Along the sliding direction, an arrangement surface in an upper face of the prism part is provided with a plurality of arrangement regions K to be arranged with objects to be measured. Therefore, after completing the measurement of optical constants for one object, the prism part is slid, so as to shift the next object onto an optical path of a terahertz wave T, whereby a plurality of objects can be measured smoothly without cleaning the arrangement surface. | 01-16-2014 |
20140348190 | METHOD FOR DESIGNING LASER-LIGHT-SHAPING OPTICAL COMPONENT, METHOD FOR PRODUCING LASER-LIGHT-SHAPING OPTICAL COMPONENT, AND LASER-LIGHT-SHAPING OPTICAL SYSTEM - A method for designing an optical component for shaping laser light according to one embodiment of this invention measures the intensity distribution of an incident laser light, obtains the shapes in the short and long axial directions of a pair of aspheric lenses for each of the short and long axial directions of the incident laser light from the measured intensity distribution of the incident laser light and a desired intensity distribution, performs approximation of a high-order polynomial of the shapes in the short and long axial directions of the pair of aspheric lenses, corrects the high-order polynomials for the short or long axial directions using a correction factor, and obtains the shapes of the pair of aspheric lenses on the basis of the corrected high-order polynomials. | 11-27-2014 |