发明名称 |
An image scanner having system extending function and image correcting function |
摘要 |
<p>An image scanner has both a flat bed (FB) type structure and an automatic document feeding (ADF) type structure, and includes: an image read unit (1) at least including a lamp, a mirror and CCD sensors to read a manuscript which is put on the structure; an image control unit (2) operatively connected to the image read unit to process an image read by the image read unit; a host computer operatively connected to he image control means. The image control unit includes a main printed-circuit board (20) provided for the original functions of the image scanner, a main connector (21) connecting the image control means to the host computer, a user printed-circuit board (23) selectively provided by a user as an extended slot and the board being mounted within the image control unit, and a user connector (22) connecting the main printed-circuit board to the user printed-circuit board. Further, in one embodiment the image scanner has a function of correction for a difference in an image output between the FB type and the ADF type by adjusting a change rate from the white/black reference level, the gain of the amplifier, the lamp current, or a predetermined conversion formula. <IMAGE></p> |
申请公布号 |
EP0689341(A2) |
申请公布日期 |
1995.12.27 |
申请号 |
EP19950303447 |
申请日期 |
1995.05.23 |
申请人 |
PFU LIMITED;FUJITSU LIMITED |
发明人 |
KAJI, YUKIO, C/O PFU LIMITED;MUROSAKI, MIKIO, C/O PFU LIMITED;KANEMITSU, NORIO, C/O FUJITSU LIMITED |
分类号 |
H04N1/00;H04N1/04;H04N1/10;H04N1/12;H04N1/193;H04N1/407;(IPC1-7):H04N1/407 |
主分类号 |
H04N1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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