Developing device and image forming apparatus provided with same
A developer, bar-shaped technology, applied in the direction of electric recording process applying charge pattern, equipment for applying electric recording process of charge pattern, electric recording technique, etc., can solve the problem of uneven toner density and the like
Inactive Publication Date: 2015-03-11
KYOCERA DOCUMENT SOLUTIONS INC
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of the above problems, an object of the present invention is to provide a developing device capable of solving the problem of uneven toner density on a magnetic roller of the developing device and an image forming apparatus including the developing device.
Method used
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Examples
Experimental program
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Effect test
Embodiment 1
[0084] Example 1: The restricting plate 90 of the first embodiment is provided.
[0085] Width of groove portion 902: 1mm
[0086] Depth of groove portion 902: 1.5mm
[0087] The interval of the groove part 902: 3mm
[0088] (Both the width and interval of the groove portion 902 are values measured on a straight line perpendicular to the inclination direction of the groove portion 902.)
Embodiment 2
[0089] Example 2: The restricting plate 91 of the second embodiment is provided.
[0090] Width of the first groove 911 and the second groove 912: 1mm
[0091] Depth of the first groove 911 and the second groove 912: 1.5mm
[0092] The distance between the first groove 911 and the second groove 912: 3mm
[0093] (The width and interval of the grooves are values measured on a straight line perpendicular to the inclination direction of the grooves.)
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A developing device includes a case for housing a developer, a magnetic roller, an agitating member, a layer thickness restricting member and a plurality of projection members. The magnetic roller is arranged in the case, includes a rotary shaft and magnetically carries the developer on a circumferential surface. The agitating member is arranged to face the magnetic roller in the case, includes a shaft center and a screw forming portion arranged around the shaft center. The layer thickness restricting member restricts the layer thickness of the developer to a predetermined thickness. The plurality of projection members are arranged along a rotation axis direction of the magnetic roller to face the circumferential surface of the magnetic roller at a side upstream of the layer thickness restricting member in a rotating direction of the magnetic roller and comes into contact with the developer carried on the magnetic roller.
Description
technical field [0001] The present invention relates to a developing device used in an image forming apparatus such as a printer, and more particularly to a developing device using a two-component developer containing a carrier and a toner, and an image forming device equipped with the developing device. Background technique [0002] Conventionally, a developing device described below is known as a developing device used in an image forming apparatus such as a printer. The developing device is constituted by installing the following components in the developing casing, and the components include: a screw feeder (stirring member) which rotates around the axis to stir the toner; a magnetic roller which is connected with the The screw feeder is arranged in parallel, and the toner fed by the screw feeder is provided to the peripheral surface side of the photosensitive drum by rotating around the axis; and the layer thickness limiting member, the front edge portion is opposite to...
Claims
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IPC IPC(8): G03G15/09G03G15/00
CPCG03G15/0812G03G15/081G03G15/09
Inventor 东一哲也
Owner KYOCERA DOCUMENT SOLUTIONS INC