摘要:
A blade for regulating the amount of a release oil to be supplied is placed so as to abut on a fixing member or on a member for controlling the amount of the release oil to be supplied to the fixing member. The abutting surface of the blade is composed of a silicone rubber layer. Alternatively, the blade includes a plate-shaped elastic body and a silicone rubber layer formed on the tip of the elastic body. A fixing device including the blade and an image-forming apparatus including the fixing device are also disclosed.
摘要:
A document reading apparatus includes an irradiation unit configured to irradiate a document reading position with visible light and infrared light, a reading unit configured to read an image of visible light and an image of infrared light reflected from the document on the document reading position, and an extraction unit configured to extract a transparent toner image on a document based on the visible light image and the infrared light image read by the reading unit.
摘要:
A document reading apparatus includes an irradiation unit configured to irradiate a document reading position with visible light and infrared light, a reading unit configured to read an image of visible light and an image of infrared light reflected from the document on the document reading position, and an extraction unit configured to extract a transparent toner image on a document based on the visible light image and the infrared light image read by the reading unit.
摘要:
An image forming apparatus includes a toner image forming device configured to form a toner image on an image conveying member, a detector configured to optically detect a density of the toner image on the image conveying member, a controller configured to control an image forming condition of the toner image forming device based on an output of the detector, a shutter configured to open and close an optical window of the detector, wherein the image forming apparatus is operable in a cleaning mode of the shutter in which an opening and closing movement of the shutter is repeatedly executed.
摘要:
A copper phthalocyanine compound of the formula: ##STR1## wherein CuPc is a copper phthalocyanine nucleus, R.sub.1 is an alkyl group, an aralkyl group or an aryl group each having 3 to 18 carbon atoms, R.sub.2 and R.sub.3 are, the same or different, each a hydrogen atom or a hydroxyethyl group, X is an alkali metal, a hydrogen atom or an ammonium group, a is 1 or 2, b is 0, 1 or 2 and c is 1, 2 or 3 provided that a, b and c satisfy following equation:2.ltoreq.a+b+c.ltoreq.4,which is useful as a cyanic dyestuff for an aqueous ink composition, particularly for ink jet recording.
摘要翻译:下式的铜酞菁化合物:其中CuPc是铜酞菁核,R1是分别具有3-18个碳原子的烷基,芳烷基或芳基,R2和R3是相同的 或不同的,各自为氢原子或羟乙基,X为碱金属,氢原子或铵基,a为1或2,b为0,1或2,c为1,2或3,条件是a ,b和c满足以下等式:2 aa + b + c 4,其可用作水性墨水组合物的氰基染料,特别是用于喷墨记录。
摘要:
An image forming apparatus that can realize an image having adequate image quality, density and color, without provoking excessive consumption of a developer and reduction in productivity. Image formation is performed by forming a latent image on an image carrier based on image information, then developing and transferring the latent image. An image for adjustment on a portion is formed other than a portion on which the latent image is formed on the image carrier. The density of the image for adjustment is detected. Image density is adjusted based on the density of the detected image for adjustment. Image formation control is executed whereby density is adjusted when an image is formed. A printing rate that indicates the percentage of the image formation to a sheet used for image formation is calculated. When the printing rate is determined to be within a set range, the image formation control is executed at a set frequency. On the other hand, when the printing rate is determined to be outside the set range, the set frequency is changed and the image formation control is executed.
摘要:
An image forming apparatus includes a toner image forming device configured to form a toner image on an image conveying member, a detector configured to optically detect a density of the toner image on the image conveying member, a controller configured to control an image forming condition of the toner image forming device based on an output of the detector, a shutter configured to open and close an optical window of the detector, wherein the image forming apparatus is operable in a cleaning mode of the shutter in which an opening and closing movement of the shutter is repeatedly executed.
摘要:
An image forming apparatus includes an image bearing member on which an electrostatic image is formed; a development device which develops the electrostatic image formed on the image bearing member, and forms a toner image; a first transfer device which transfers the toner image on the image bearing member to an intermediate transfer member at a first transfer position; a first cleaning device for cleaning the image bearing member; a second transfer device which transfers the toner image on the intermediate transfer member to a recording material at a second transfer position; a second cleaning device for cleaning the intermediate transfer member; and a determining device which determines, whether the toner on the intermediate transfer member is to be cleaned by the second cleaning device or by the first cleaning device through the image bearing member, based an interval of an image forming process during a continuous image forming process.
摘要:
An image forming apparatus that can realize an image having adequate image quality, density and color, without provoking excessive consumption of a developer and reduction in productivity. Image formation is performed by forming a latent image on an image carrier based on image information, then developing and transferring the latent image. An image for adjustment on a portion is formed other than a portion on which the latent image is formed on the image carrier. The density of the image for adjustment is detected. Image density is adjusted based on the density of the detected image for adjustment. Image formation control is executed whereby density is adjusted when an image is formed. A printing rate that indicates the percentage of the image formation to a sheet used for image formation is calculated. When the printing rate is determined to be within a set range, the image formation control is executed at a set frequency. On the other hand, when the printing rate is determined to be outside the set range, the set frequency is changed and the image formation control is executed.
摘要:
According to the present invention, in an image-forming apparatus having at least two chargers for charging a rotating image carrier, in accordance with change in bias applied to a second charger disposed on the downstream side in a rotational direction of the image carrier, the bias applied to a first charger disposed on the upstream side is changed. Thereby, the electric power required for the charging is reduced.