摘要:
An image gloss control apparatus that includes a first control component and a second control component is provided. The first control component controls an image forming/fixing component, which forms an image on a recording medium using a colored image formation material and fixes the image, so that a first image is formed in a high gloss area having a high gloss level on the recording medium or an area including the high gloss area on the recording medium and is fixed. The second control component that controls the image forming/fixing component, so that a second image having a density lower than a density of the first image is formed in a low gloss area having a gloss level lower than the gloss level of the high gloss area on the recording medium where the first image is formed or the low gloss area on the first image and is fixed.
摘要:
To cool a blade type server disposed in an air-conditioned room, the following arrangements are made. The first is at least one shell having a ventilation passage disposed in the air-conditioned room. The second is, the following are disposed in a ventilation passage: racks, in which blade type servers earch composed of a case with slim boards housed therein are stacked; cooling coils each having a coolant passage and a cooling fin and cooling a passing air; and at least one fan unit having axial-flow fans placed therein and producing air curents in one direction. The third is the fan unit forces a cooling air to flow in one direction in the ventilation passage thereby to cool the servers in the racks. The cooling coils and racks are dispossed alternately so that warmed cooling air after passing through the rack is cooled by the cooling coil and then cools the next rack.
摘要:
A toner container includes a cylindrical container body, a cap having a toner outlet, and a shutter. The cap includes a primary positioning primary positioning hole, formed in a top front surface perpendicular to a longitudinal direction of the toner container, extending in the longitudinal direction, to determine an installation position of the cap relative to the image forming apparatus, a secondary positioning hole, formed in a bottom front surface perpendicular to the longitudinal direction of the toner container, extending in the longitudinal direction forward the toner outlet, to subsidiary determine the installation position of the cap, and a first restriction member to position the cap in a horizontal direction perpendicular to the longitudinal direction, projecting vertically upward from an outer circumferential surface of the cap and symmetrical about a virtual perpendicular line passing through a cross-sectional center position of the primary positioning hole perpendicular to the longitudinal direction.
摘要:
The invention provides a developing device, a process cartridge and an image forming apparatus that allow preventing abrupt variations in toner charge on a developing roller, caused by intrusion, into a nip, of toner accumulated above a regulating member of the developing device. A developing device using a one-component developer includes: a supply roller to which one-component developer is replenished, by natural motion, from a developer storing section. The bottom of the developing device is of a size that allows the supply roller to rotate. The developing device further comprises a filling member for filling a space above the regulating member, in order to prevent the toner located above the regulating member from intruding into a nip formed between the supply roller and a developing roller.
摘要:
A developing unit for developing a latent image formed on an image carrier includes a developer carrier, a developer regulator, and a sealing member. The developer carrier bears a developer, and is disposed facing the image carrier at a first position. The developer regulator regulates an amount of the developer, and is disposed facing the developer carrier at a second position upstream of the developer carrier in a moving direction thereof relative to the first position. The sealing member comes into contact with the image carrier at a third position upstream of the image carrier in a moving direction thereof relative to the first position. Therefore, gas is prevented from flowing from an outside area of the developing unit into an area defined by the second position to the third position.
摘要:
A monosulfonium salt in which very little unreacted raw material remains, which has a purity of at least 96%, and which has one sulfonio group in its molecule is manufactured without a refining step. After (a) an aryl compound, (b) a sulfoxide compound, (c) a dehydrating agent, and (d) a BF4, PF6, AsF6, or SbF6 salt of an alkali metal or an alkaline earth metal are introduced into a reaction system, (e) an inorganic acid is added, so that the aryl compound (a) and the sulfoxide compound (b) are subjected to dehydration condensation.
摘要:
An image developer, including a rotatable developer bearer; a rotatable developer feeding member contacting the developer bearer; a developer container located above the developer feeding member, wherein the developer container includes a pressure reducing member configured to reduce a pressure applied to the developer feeding member; and a first stirring bar located directly below the pressure reducing member and configured to stir a developer such that a gap between an end of the pressure reducing member and an outer diameter of the stirring bar is 6 mm.
摘要:
A powder conveyance device includes a powder conveyance pipe having a first conveyance section communicating with the powder container section and having a supply inlet to receive powder from a powder container. A second conveyance section is provided in the powder conveyance pipe to communicate downstream with the first conveyance section via a first bending section. The second conveyance section downwardly extends to the conveyance destination being inclined from a horizontal at a larger angle than the first conveyance section. A third conveyance section is also provided in the powder conveyance pipe to communicate downstream with the second conveyance section via a second bending section. The third conveyance section extends toward the conveyance destination being inclined from the horizontal at a smaller angle than the second conveyance section. The third conveyance section has a replenishment outlet for replenishing the powder from the powder conveyance pipe to the powder conveyance destination. A space restriction member is provided and is at least arranged in the second conveyance section and partially closes an inner space of the second conveyance section.
摘要:
A developer bearing member on which grooves slanting in a thrust direction of the developer bearing member cross other grooves reversely slanting relative to the thrust direction, wherein each of the grooves and the reversely slanting grooves is slanting at an angle of greater than 0° and not greater than 40°. Any two adjacent intersections of the grooves and the reversely slanting grooves in the thrust (or peripheral) direction are preferably on different levels in the peripheral (or thrust) direction. The distance between two adjacent intersections in the thrust direction is preferably from 1.3 mm to 4.8 mm. The distance between two adjacent intersections in the thrust direction is preferably from 0.38 Vd/Vi (mm) to 1.1 Vd/Vi (mm). The deviation in depth of grooves present on a 36° arc surface portion of the member is not greater than 15% of the gap between the image bearing member and the developer bearing member.
摘要:
An image forming apparatus includes a unit, a mark detector, and a controller. The unit is attachable to and detachable from the image forming apparatus and includes an information mark pattern indicating predetermined information. The mark detector detects the information mark pattern. The controller obtains the information indicated by the information mark pattern based on a detection result provided by the mark detector.