Image forming apparatus with variable fixing heat
AssigneeOki Data Corporation
InventorToshiki Sato
Life of this patent
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Abstract
An image forming apparatus has a fixing unit that applies heat energy to non-fused developer on a medium. The medium is advanced in a transport path and a heater supplies heat energy to the fixing unit when the medium passes the fixing unit. When a trailing end of the medium is a predetermined distance upstream of the fixing unit, a controller operates in a first mode in which the controller causes the heater to supply a first amount of heat energy to the fixing unit. When the trailing end of the medium is within a predetermined distance upstream of the fixing unit, the controller operates in a second mode in which the controller causes the heater to supply a second amount of heat energy to the fixing unit. The second amount of heat energy is smaller than the first amount of heat energy.
Claims6
An image forming apparatus having a fixing unit that applies heat energy to a non-fused developer on a medium, the apparatus comprising:
- a heater that supplies heat energy to the fixing unit;
- a controller that operates selectively in a first mode in which said controller causes said heater to supply a first amount of heat energy to the fixing unit when a trailing end of the medium is a predetermined distance more upstream of the fixing unit with respect to a direction of travel of the medium, and in a second mode in which said controller causes said heater to supply a second amount of heat energy to the fixing unit when a trailing end of the medium is within a predetermined distance more upstream of the fixing unit, the second amount of heat energy being smaller than the first amount of heat energy.
Dependencies are inferred from the claim text.