Image forming apparatus
A technology for image and recording materials, applied to electrical recording technology using charge graphics, equipment and instruments using electrical recording technology using charge graphics, etc., can solve problems such as image defects, adjust color pollution, etc., to prolong life and prevent deposition , reduce the effect of accumulation
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AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment approach
[0030] Overall structure of image forming apparatus
[0031] figure 1 is a schematic cross-sectional view showing a schematic configuration of an image forming apparatus 100 as one example of an image forming apparatus to which the present invention is applied. Here, as an example of the image forming apparatus, an example in which the present invention is applied to a monochrome printer will be described. The image forming apparatus 100 forms an image on a recording material P corresponding to image information input from an external device (not shown) such as a host computer.
[0032]The image forming apparatus 100 has a photosensitive drum 1 as a drum-type (cylindrical) electrophotographic photosensitive member as an image bearing member. When a print command is input from an external device, the photosensitive drum 1 is rotationally driven at a prescribed speed (processing speed) in the direction of an arrow R1 in the figure. In the present embodiment, as the photosensi...
manufacture example
[0193] Hereinafter, "part" and "%" are based on mass unless otherwise specified.
[0194] Production example of polybasic acid metal salt fine particles
[0195] 100.0 parts of ion-exchanged water
[0196] Sodium phosphate (12 hydrate) 8.5 parts
[0197] The components described so far were mixed, then stirred at room temperature at 10000 rpm using a T.K. in 7.2 parts zirconium ammonium lactate). 1.0 mol / L hydrochloric acid was added thereto to adjust the pH to 7.0. The temperature was adjusted to 70°C, and stirring was maintained, and the reaction was carried out for 1 hour.
[0198] Thereafter, the solids were extracted by centrifugation. Subsequently, the step of redispersing the solid matter in ion-exchanged water and extracting the solid matter by centrifugation was repeated 3 times, thereby removing sodium ions and the like. The solid matter was again dispersed in ion-exchanged water, and dried by spray drying to obtain zirconium phosphate compound fine particles h...
manufacture example
[0200] Into a reaction vessel containing 390.0 parts of ion-exchanged water, 11.2 parts of sodium phosphate (12 hydrate) was charged, and kept at 65° C. for 1.0 hour under nitrogen purging. Stirring was performed at 12000 rpm using a T.K. homomixer (manufactured by PRIMIX Corporation). While maintaining stirring, an aqueous solution of calcium chloride obtained by dissolving 7.4 parts of calcium chloride (dihydrate) in 10.0 parts of ion-exchanged water was put into the reaction vessel in its entirety, thereby preparing an aqueous medium containing a dispersion stabilizer. Furthermore, 1.0 mol / L of hydrochloric acid was added to the aqueous medium in the reaction vessel so as to adjust the pH to 6.0, thereby preparing an aqueous medium.
[0201] Preparation of polymerizable monomer compositions
[0202] Styrene: 60.0 parts
[0203] Carbon black (Nipex 35: manufactured by Orion Engineered Carbons Co.): 6.3 parts
[0204] The material was charged into a mill (manufactured by N...
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Abstract
Description
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