摘要:
An elastic rotatable member includes a base member, an elastic layer on the base member, the elastic layer defining a plurality of opening extending in a longitudinal direction of the elastic rotatable member, wherein the openings are arranged such that any radial line in a cross-section of the elastic rotatable member in a direction substantially perpendicular to the longitudinal direction, crosses at least two of such openings.
摘要:
An image fixing apparatus includes a heating device, a non-endless film movable together with a toner image supporting medium, wherein the toner image on the supporting medium is heated by the heating device through the film, a rewinding device for rewinding the film in a direction opposite to a movement direction of the toner image supporting medium, and a pressing device for press-contacting the film to the heating device and to the image supporting medium, wherein the rewinding device rewinds the film while the pressing device does not perform its pressing operation.
摘要:
An image fixing apparatus includes a heater; a film in contact with the heater, wherein heat from the heater is applied through the film to a toner image on an image supporting member; and wherein the film is in contact with an entire heat generating area of a heater.
摘要:
An image fixing apparatus includes a heating source for heating a toner image; a film movable in contact with a member for supporting the toner sheet, wherein the toner image is heated by heat from the heating source through the film; and a casing forming, together with the film, a cartridge detachably mountable into the apparatus.
摘要:
An image forming apparatus contains a heater and a sheet movable with a recording material in sliding contact with the heater, wherein the image is heated by heat from the heater through the sheet. The heater has an electrically insulative member, a heat generating resistor arranged on the electrically insulative member in a direction crossing with a movement direction of the sheet, an electrode for supplying electric power to the resistor and a protection layer covering the heat generating resistors, and in sliding contact with the sheet.
摘要:
An image forming apparatus contains an accommodator for accommodating a recording material together with an image forming device for forming an image on that recording material supplied from the accommodator. A fixing apparatus receives the imaged recording material and includes a heat generating resistor layer, a protection layer covering the heat generating resistor layer and a sheet movable with the recording material in sliding contact with the protection layer, wherein the image is heated by heater through the sheet. A position detector detects the position of the recording material and the power supply to the heat generating resistor layer is started in accordance with the output of the position detector.
摘要:
An image fixing apparatus includes a heater; a sheet in slidable contact with the heater; and a back-up member cooperative with the heater to form a nip therebetween such that the sheet is interposed in the nip. An unfixed image on a side of a recording material in contact with the sheet is heated and fixed by heat from the heater through the sheet. The sheet includes (i) a base resin layer in slidable contact with the heater, and (ii) a surface parting layer disposed on the base resin layer. The surface parting layer is thinner than the base resin layer.
摘要:
An image fixing apparatus for fixing an unfixed image formed on an image carrying member, includes a sheet member movable together with the image carrying member in contact with the unfixed image carried thereon, and a heat generating element contacted to such a side of the sheet member as is opposite to a side thereof contactable to the unfixed image, the heat generating element being fixed in use.
摘要:
Imaging forming apparatus includes an image bearing member, an image formation unit for forming an image on the image bearing member, and a detection unit for detecting a voltage-current characteristic between the image bearing member and the charging member. The image formation unit has a charging member contactable to the image bearing member to charge the image bearing member. An image formation condition for the image bearing member is determined on the basis of a plurality of detection operations of the detection unit.
摘要:
An image reading apparatus including a light source for illuminating an original, a white member which is illuminated by the light emitted from the light source, a photoelectric converting element for receiving the reflection light from the original and the reflection light from the white member, a memory for storing a reference output of the photoelectric converting element which is obtained by receiving the reflection light from the white member, a shading compensation device for compensating an output of the photoelectric converting element which is obtained by receiving the reflection light from the original in accordance with the reference output, and a rewriting device for rewriting the reference output to be stored in the memory, wherein the rewriting device rewrites the reference output at a timing according to a fluctuation in light amount of the light source.