Image forming apparatus
OwnerTomoyuki Nagamine, Katsumi Takada +1inventors
InventorsTomoyuki Nagamine, Katsumi Takada, Susumu Imado
Life of this patent
Estimating the term…
Abstract
An image forming apparatus has a plurality of print assemblies for forming a color image, a fixing unit, and a paper conveyor belt for conveying a paper sheet through the print assemblies and the fixing unit. The fixing unit includes a pair of fixing rollers, a nip control mechanism for moving the pair of the fixing rollers between a nip position and a non-nip position, and a fixing unit securing means movable with the nip control mechanism. Thus, the fixing unit can be easily mounted and demounted.
Claims10
An image forming apparatus comprising:
- a frame;
- at least one print assembly capable of forming an image;
- a fixing unit including a pair of fixing rollers for holding and conveying a paper sheet, a nip control mechanism for moving-said pair of fixing rollers between a nip position and a non-nip position, and fixing unit securing means movable with said nip control mechanism for securing and releasing the fixing unit to and from the frame;
- and
- a paper sheet conveyor means for conveying the paper sheet to said fixing unit through said print assembly.
An image forming apparatus comprising:
- a frame;
- at least one print assembly capable of forming an image;
- a pair of fixing rollers for holding and conveying a paper sheet, an inlet-side paper guide arranged to be movable in a vertical direction with respect to a paper passage in accordance with a thickness of the paper sheet and guiding the paper sheet between said fixing rollers;
- and
- paper conveyor means for conveying the paper sheet to said fixing rollers through said print assembly and said inlet-side paper guide.
An image forming apparatus comprising:
- a frame;
- at least one print assembly capable of forming an image;
- a fixing unit having a pair of fixing rollers for holding and conveying a paper sheet;
- a paper sheet conveyor belt for conveying the paper sheet through said print assembly and said fixing unit;
- and
- means capable of changing a speed of said fixing rollers relative to a speed of said paper sheet conveyor belt in accordance with a kind of the paper sheet.
An image forming apparatus comprising:
- a frame;
- at least one print assembly capable of forming an image;
- a fixing unit including a pair of fixing rollers for holding and conveying a paper sheet, and a cleaning member having at least two strips of cleaning felt arranged so that contact pressures of said two strips of cleaning felt against said fixing roller are changed in the rotational direction of said fixing roller to clean the surface of said fixing roller;
- and
- paper conveyor means for conveying the paper sheet through said print assembly and said fixing unit.
Dependencies are inferred from the claim text.