摘要:
A fixing device for fixing an image formed on a recording material includes a fixing member disposed on a recording material conveyance path, a heating part that heats the fixing member to fix the image formed on the recording material by heat, and a storage unit that is charged by an external power source to supply power to the heating part. The fixing device further includes a fixing temperature detecting unit that detects a temperature of the fixing member, and a control unit that controls the external power source to supply power to the heating part and to determine whether to start to supply power to the heating part from the storage unit based on the temperature of the fixing member, at the time of warming-up the fixing member by the heating part.
摘要:
A fixing apparatus includes a first heat generating member that generates heat upon receiving power from a commercial power source, an electrical condenser that stores charge when charged by the commercial power source, and a second heat generating member that generates heat upon receiving power from the electrical condenser. A fixing member is heated by the first and second heat generating members and fixes an image onto a recording medium. A control device is provided to restrict the power supplied from commercial power source to the first heat generating member when the temperature of the fixing member starts increasing. The electrical condenser starts supplying power to the second heat generating member before the control device terminates restriction of the power.
摘要:
A fixing device for fixing an image formed on a recording material in an image forming apparatus includes a fixing member, a heating part that heats the fixing member to fix an image formed on the recording material by heat, a storage unit that is charged by an external power source to supply power to the heating part, and a control unit that controls the external power source to supply power to the heating part and determines whether to start to supply power to the heating part from the storage unit. The control unit controls the external power source to charge the storage unit during a period from when power supply from the storage unit to the heating part is completed at the time of warming-up the fixing member by the heating part until when the power supply from the storage unit to the heating part is started.
摘要:
A heating device of the invention comprises a heater, a main power supply, and an auxiliary power supply. The heater includes a main heating element which generates heat with power supplied from the main power supply, and an auxiliary heating element which has a resistance different from a resistance of the main heating element and generates heat with power supplied from the auxiliary power supply. The auxiliary power supply is provided to supply to the auxiliary heating element a current that is different from a current supplied from the main power supply to the main heating element.
摘要:
A fixing member, a power detector, and a controller are included. The fixing member is heated by a heating unit that generates heat when power is supplied by a commercial power and a capacitor. The power detector detects energy of power stored in the capacitor. The controller performs an identical control to reduce number of copies of an image formed (fixed) per minute (CPM) to a predetermined number (40 CPM) in any of three cases in which the energy is less than a threshold for starting electric discharge when a plurality of recording mediums is continuously passed through the fixing member, in which a cardboard paper is continuously passed, and in which an amount of data of an image to be transferred on the recording medium is large.
摘要:
A fixing apparatus includes an electrical condenser charged by a commercial power source, a heat generating member that generates heat when the electrical condenser supplies power, and a fixing device that is heated by the heat generating member and fixes an image onto a recording medium. A temperature switch is activated when temperature of the fixing member reaches a prescribed abnormal level. A power supply circuit is provided to convey the power from the electrical condenser to the heat generating member. A cutting off device is provided to cut off the power supply circuit when the temperature switch is operated.
摘要:
A fixing device for fixing an image formed on a recording material includes a fixing member disposed on a recording material conveyance path, a heating part that heats the fixing member to fix the image formed on the recording material by heat, and a storage unit that is charged by an external power source to supply power to the heating part. The fixing device further includes a fixing temperature detecting unit that detects a temperature of the fixing member, and a control unit that controls the external power source to supply power to the heating part and to determine whether to start to supply power to the heating part from the storage unit based on the temperature of the fixing member, at the time of warming-up the fixing member by the heating part.
摘要:
A fixing member, a power detector, and a controller are included. The fixing member is heated by a heating unit that generates heat when power is supplied by a commercial power and a capacitor. The power detector detects energy of power stored in the capacitor. The controller performs an identical control to reduce number of copies of an image formed (fixed) per minute (CPM) to a predetermined number (40 CPM) in any of three cases in which the energy is less than a threshold for starting electric discharge when a plurality of recording mediums is continuously passed through the fixing member, in which a cardboard paper is continuously passed, and in which an amount of data of an image to be transferred on the recording medium is large.
摘要:
A fixing device includes a nip formation pad that presses against a pressure rotator via an endless belt to form a fixing nip between the belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed. A fixing heater is disposed opposite at least a center span of a conveyance span of the belt in an axial direction thereof where the recording medium is conveyed to heat the belt. A first lateral end heater and a second lateral end heater are mounted on the nip formation pad and disposed opposite a first lateral end span and a second lateral end span of an inner circumferential surface of the belt in the axial direction thereof, respectively, to heat the belt. The second lateral end heater is electrically connected in series to the first lateral end heater.
摘要:
A nip formation assembly disposed opposite an opposed rotator via an endless belt includes a nip formation pad to press against the opposed rotator via the endless belt to form a fixing nip between the endless belt and the opposed rotator, through which a recording medium bearing a toner image is conveyed. A fixing heater is disposed opposite at least a center span of the endless belt in an axial direction thereof where the recording medium is conveyed. The fixing heater heats the endless belt. A lateral end heater is mounted on the nip formation pad and disposed opposite a lateral end span of an inner circumferential surface of the endless belt in the axial direction thereof. The lateral end heater heats the endless belt.