Image reading device

Details Image reading device Image reading device

2006-09-26

2009-11-10

Lee, Cheukfan (Department: 2625)

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

C358S463000, C358S465000, C358S474000, C358S486000, C358S496000, C358S498000, C358S406000

Reexamination Certificate

active

07616351

ABSTRACT:
By reading an image of a reference plate, whether or not a likeliness that a linear abnormal image is occurred in the image of the document due to a foreign matter and the like attached on a contact glass exists is determined. In the case where there is the likeliness of occurrence of the linear abnormal image, the occurrence of the abnormal image is suppressed by changing an image reading position. At this time, a reading sensitivity is measured by reading a reference document having a single white color instead of a normal document. An adjustment data is generated according to the measurement result and stored in a memory. Then, light quantity of an exposure lamp is regulated in accordance with the document reading position by using the adjustment data.

REFERENCES:
patent: 6563938 (2003-05-01), Harada
patent: 6600579 (2003-07-01), Kumagai et al.
patent: 6801670 (2004-10-01), Kijima et al.
patent: 2003/0016398 (2003-01-01), Soeda
patent: 2005/0179954 (2005-08-01), Arai et al.
patent: 2008/0018958 (2008-01-01), Kurokawa

Affiliated with

Also associated with

Rating

Image reading device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image reading device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image reading device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4090819