Image forming apparatus and image forming method
An image and latent image technology, which is applied in the image forming device and image forming field, can solve problems such as charging instability, poor image, fixation, etc., and achieve long-term good charging and cleaning effects
Inactive Publication Date: 2010-09-29
SEIKO EPSON CORP
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Problems solved by technology
By using the lubricant in this way, the formation of a film-forming layer on the surface of the latent image carrier is suppressed, but on the other hand, it also occurs that the toner is fixed to the front end of the cleaning blade, charging becomes unstable, or due to poor cleaning. and other problems with bad images
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[0022] figure 1 It is a diagram schematically showing the main configuration of an embodiment of the image forming apparatus in the present invention. in addition, figure 2 yes means figure 1 Block diagram of the electrical configuration of the device. In this image forming apparatus 1 , an image is formed using a non-magnetic one-component negatively charged toner. That is, in this embodiment, negative polarity is "standard charged polarity". Of course, image formation may also be performed using a positively charged toner having positive polarity as a standard charging polarity. In the following description, the image forming apparatus 1 will be described as an image forming apparatus using a negatively charged toner, but in the case of using a positively charged toner, it is only necessary to make the charging potential of each component described below be the opposite polarity. Just sex. In addition, a toner has toner base particles and an external additive added to...
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The present invention provides an image forming device and an image forming method which can excellently perform electrification processing and cleaning processing on a surface of a latent image carrier by fewer components. A toner is cleaned and removed from the surface of a photoreceptor by conductive blades, simultaneously, one part of a surface layer of a lubricant layer is scraped, so in an edge line portion butted with the surface of the photoreceptor in a front end of the conductive blade, the toner and zinc distearate (lubricant) are accumulated together; and under the effect of the zinc distearate, the toner is fixed. But, because the toner comprises external additives having grinding effect, the toner or the lubricant fixed on the edge line portion of the conductive blade is grinded by the external additives; the growth of the fixed part is reliably restrained; and once electrification processing and cleaning processing of the photoreceptor are excellently carried out by the conductive blade even the image is continuously formed for a long time.
Description
technical field [0001] The present invention relates to an image forming apparatus and an image forming method for developing an electrostatic latent image formed on the surface of a latent image carrier with toner to form a toner image, and in particular to cleaning and cleaning of the surface of the latent image carrier. Live technology. Background technique [0002] It is known to form a toner image by developing an electrostatic latent image formed on a latent image carrier that rotates in a predetermined rotation direction with toner, and transfer the toner image to a transfer medium. Image forming apparatus and method. In this image forming apparatus and method, since the transfer efficiency from the latent image carrier to the transfer medium is 100% or less, a small amount of toner may remain on the surface of the latent image carrier after transfer. Therefore, in this image forming apparatus, a cleaning unit of a so-called blade type is often used, that is, a clea...
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IPC IPC(8): G03G15/02
CPCG03G21/0017G03G2221/0005G03G21/0023
Inventor 前田将宏山田阳一小桥胜有贺友洋福元贵智北泽淳宪
Owner SEIKO EPSON CORP