Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2005-09-16
2008-05-20
Le, Hoa Van (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S110400, C399S118000, C399S122000, C399S181000, C399S320000
Reexamination Certificate
active
07374854
ABSTRACT:
The present invention provides an image-forming method, including pseudo-halftone-processing an input signal corresponding to image information to generate an output signal; irradiating a radiation beam corresponding to the output signal onto a latent image-holding member to form a latent image; developing the latent image with a developer including a toner containing a binder resin and a colorant to form a toner image on the latent image-holding member; transferring the toner image onto a recording medium; and fixing the toner image on the recording medium to form an image, wherein: when a halftone image is formed as the image, the toner image formed on the latent image-holding member is composed of plural toner aggregates scattered like dots on the latent image-holding member; the diameter of the radiation beam irradiated onto the latent image-holding member is 35 μm or more; the pseudo-halftone processing results in the toner aggregates, which have been transferred onto the recording medium, having uneven sizes; and the toner satisfies the following Formulae (1) and (2):in-line-formulae description="In-line Formulae" end="lead"?2.0×105≦G′(60)≦4.0×106 Formula (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?G′(60)/G′(80)≦40 Formula (2)in-line-formulae description="In-line Formulae" end="tail"?wherein G′(60) represents the storage modulus (Pa) of the toner as determined under conditions of a temperature of 60° C., a vibration frequency of 6.28 rad/sec, and a distortion factor of 0.1%; and G′(80) represents the storage modulus (Pa) of the toner as determined under conditions of a temperature of 80° C., a vibration frequency of 6.28 rad/sec, and a distortion factor of 0.1%.
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Ishiyama Takao
Nakazawa Hiroshi
Ninomiya Masanobu
Yano Toshiyuki
Fuji 'Xerox Co., Ltd.
Le Hoa Van
Oliff & Berridg,e PLC
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