摘要:
The present invention relates to a method for purifying a compound selected from a compound represented by the following general formula [1] or [2], a saturated aliphatic hydrocarbon having no substituent, or kerosene: (R represents a halogen atom or a lower alkyl group having 1 to 3 carbon atoms, and n represents an integer of 1 to 5); (R is the same as above, p and q independently represent an integer of 0 to 4, with the proviso that at least one of p and q is not 0), comprising: removing a impurity contained in said compound by a first step comprising contacting said compound with ozone gas, and then a second step comprising contacting said compound with an adsorbent selected from zeolite or a basic adsorbent.
摘要:
A charging device has a corona charger including a grid, the corona charger being configured to charge a photosensitive member. The device also has a sheet-like shutter configured to open and close an opening of the corona charger in the longitudinal direction, a winding member configured to wind the shutter while holding one end of the shutter, a holding member configured to hold the other end of the shutter and move in the longitudinal direction of the opening, and a protective member configured to protect a portion of a surface of the shutter facing the grid, the portion being adjacent to the holding member.
摘要:
An image reading apparatus reads an image from a document being simultaneously fed by the apparatus. A document feeder unit feeds the document on a original plate. A first image reading unit reads an image from the fed document at a first document-read position on the original plate. A second image reading unit reads an image from the fed document at a second document-read position located at a predetermined distance from the first document-read position in a document feeding direction. An abnormal pixel detection unit detects abnormal pixels resulting from rubbish moved between the first document-read position and second document-read position on the original plate together with the document.
摘要:
A charging device includes a corona charger, provided with an opening opposing a photosensitive member, for electrically charging the photosensitive member; a sheet-like member provided so that the sheet-like member can cover the opening; a movable device for moving the sheet-like member; and a regulating device for regulating a shape of the sheet-like member so that a central portion of the sheet-like member protrudes toward the corona charger with respect to a circumferential direction of the photosensitive member.
摘要:
The developer replenishment apparatus includes a first developer container for accommodating the developer for replenishment, a first conveyance member disposed in the first developer container to discharge the developer for replenishment through a first opening of the first developer container, a second developer container for receiving the developer for replenishment discharged from the first opening, an agitating member disposed in the second developer container to agitate the developer for replenishment, a second conveyance member disposed in the second developer container to discharge the developer for replenishment through a second opening of the second developer container toward the developing apparatus, and a driving device which does not drive the second conveyance member but drives the agitating member when driving the first conveyance member. The bulk density of the developer is thereby stabilized to make possible replenishment with the developer at high accuracy.
摘要:
The developer replenishment apparatus includes a first developer container for accommodating the developer for replenishment, a first conveyance member disposed in the first developer container to discharge the developer for replenishment through a first opening of the first developer container, a second developer container for receiving the developer for replenishment discharged from the first opening, an agitating member disposed in the second developer container to agitate the developer for replenishment, a second conveyance member disposed in the second developer container to discharge the developer for replenishment through a second opening of the second developer container toward the developing apparatus, and a driving device which does not drive the second conveyance member but drives the agitating member when driving the first conveyance member. The bulk density of the developer is thereby stabilized to make possible replenishment with the developer at high accuracy.
摘要:
An image forming apparatus includes a corona charger, including a charging electrode, for charging a photosensitive member; a cleaning member for cleaning the charging electrode; a shutter in the form of a sheet for opening and closing an opening provided between the charging electrode of the corona charger and the photosensitive member; a driving unit for driving the shutter and the cleaning member; a fan for supplying the air toward the photosensitive member through the opening of the corona charger; and a controller for controlling the fan such that an air supply operation of the fan is stopped before the shutter operates to close the opening.
摘要:
An image forming apparatus includes a fixing device for fixing a toner image formed on a recording material by heat and an outer cover, and the outer cover is configured to be the multi-layer of an intermediate layer having a metal made wall and an acoustic absorption member for absorbing a sound, and the intermediate layer is provided with the outer cover configured to have an heat conductive member higher in heat conductivity than the acoustic absorption member.
摘要:
A production line control system (10) comprising a support personnel call device (PB1, PB2, PB3, PB4) for a worker (M1, M2, M3, M4) to call for support personnel (H1, H2); a time-counting device (12) for operating when a call signal (I1, I2, I3, I4) is obtained; and a central control (13) for generating a line-stopping signal (L) when an elapsed time (Tact) of the time-counting device exceeds a predetermined control time (Tm).
摘要:
An image reading apparatus including; a supply device for supplying sheets to a reading position, a platen glass plate in the reading position, a platen roller opposed to the platen glass plate, a reading device for exposing a sheet on the platen glass plate to read an image on the sheet, and a white guide member upstream of the platen roller in the transporting direction, wherein a portion of the guide member closest to the platen roller is on the platen roller side with respect to a plane which includes the point in the outer periphery of the platen roller closest to the platen glass plate and which is parallel to the platen glass plate, and wherein the longitudinal length of the guide member is the same as or larger than the width of the range of the reading device.