摘要:
The image heating apparatus has a heater and a rotary member rotated while contacting with the heater, and the rotary member has a metal layer contacting with the heater. In the image heating apparatus, a surface roughness Rz of a contact surface of the metal layer with the heater is 3 &mgr;m or less.
摘要:
An image heating apparatus for an image forming apparatus comprises a heater and a rotary member having plasticity and rotated in contact with the heater. The rotary member in the image heating apparatus has an external shape becoming larger toward the end portions in the longitudinal direction, thereby preventing generation of wrinkles or unevenness in the conveyed recording medium.
摘要:
An image heating apparatus includes a rotatable member contactable to a recording material carrying an image; a regulating member for regulating a movement of rotatable member in the direction of a generating line of rotatable member; wherein the regulating member is fixed so as not to rotate and has a surface opposed to an outer surface of an end portion of the rotatable member.
摘要:
An image heating apparatus for heating an image formed on a recording material, including a metallic sleeve, a heater contacting with the inner surface of the sleeve, the heater being controlled so as to maintain a set temperature, a backup member cooperating with the heater through the sleeve to form a nip for nipping and transporting the recording material, and a metallic reinforcing member disposed in the interior of the sleeve, wherein during a heating operation of heating the recording material by the heater, the surface temperature of the reinforcing member is 80% or less of the surface temperature of the sleeve.
摘要:
A heater has a top-surface layer made of an imide-based resin formed on an electrical insulation layer. The heater can generally used for an image heating apparatus incorporated in an image forming apparatus. Since the top-surface layer has preferable sliding and insulating characteristics, the heater provides good heat efficiency and durability.
摘要:
An image heating apparatus for heating an image formed on a recording material, the apparatus including a conveying roller for conveying a recording material, the conveying roller including a metal core and an elastic layer provided outside the metal core, wherein the metal core has, in a central portion in the longitudinal direction thereof, a straight shape area having a substantially uniform diameter along the longitudinal direction and tapered shape areas, on both sides of the straight shape area, in which a diameter gradually decreases toward ends in the longitudinal direction, and wherein the elastic layer has, in a central portion in the longitudinal direction thereof, a straight shape area having a substantially uniform diameter along the longitudinal direction and inverted crown shape areas, on both sides of the straight shape area, in which a diameter gradually increases toward ends in the longitudinal direction. This configuration allows to prevent defects in image heating while suppressing creases in the recording material.
摘要:
According to the present invention, a temperature sensing part of temperature sensing means is arranged to come into contact with the surface opposite to the image surface of a recording material at the time of one-sided printing without providing such an opposed member that comes into contact with the image surface of the recording material at least in a position corresponding to the position of the temperature sensing part that is in contact with the recording material.
摘要:
An image heating apparatus has an endless film which has a metal layer; a device for increasing the temperature of the film; a regulating member for preventing the lopsided movement of the film; and a lubricating part disposed in a contact part between the film and the regulating member. An image on a recording material is heated by heat from the film.
摘要:
According to the present invention, a temperature sensing part of temperature sensing means is arranged to come into contact with the surface opposite to the image surface of a recording material at the time of one-sided printing without providing such an opposed member that comes into contact with the image surface of the recording material at least in a position corresponding to the position of the temperature sensing part that is in contact with the recording material.
摘要:
Energy consumption in a fixing process of an electrophotographic image-forming apparatus is reduced. An unfixed toner image T1 is fixed on a recording medium by applying a photopolymerizable composition D1 to the unfixed toner image T1 formed on the recording medium and then performing irradiation with light having a maximum emission wavelength in a wavelength range of from 420 to 470 nm using a light emitting diode or an organic EL device for curing the photopolymerizable composition D1 by photopolymerization.