Printing – Transferring preparatory designs
Reexamination Certificate
1999-09-21
2001-11-20
Hilten, John S. (Department: 2854)
Printing
Transferring preparatory designs
C101S044000
Reexamination Certificate
active
06318253
ABSTRACT:
BACKGROUND OF THE INVENTION AND RELATED ART STATEMENT
The present invention relates to a document feeder used in a combined machine having functions as a copier, printer, and facsimile, and more particularly, the present invention relates to a document feeder having a stamping device which impresses a document reading mark on a document.
There has been generally known a document feeder used in a combined machine having functions as a printer, facsimile or the like, wherein documents placed on a document table are sent sheet by sheet by paper supplying means, transferred by transferring means to pass through a reading section so that an image of the document is read by image reading means, and then ejected onto an ejection table. Among the document feeders, there is a document feeder attached with a stamping device for impressing a surface of the document with a mark for confirming whether reading the document is completed or not.
In the conventional document feeder provided with the stamping device, however, there has been a problem that when ink itself in the stamping device is consumed, impressing becomes lighter, so that a user can not confirm the mark easily.
Also, there has been a problem that impressing is not appropriately performed since ink is not adhered on the document or the ink is blurred depending on a kind of the document.
An object of the present invention is to provide a document feeder provided with a stamping device, wherein a density of an impressed mark is adjustable so that even if ink itself in the stamping device is consumed, a user can definitely identify the impressed mark.
SUMMARY OF THE INVENTION
To solve the above problem, the present invention provides a document feeder, which is formed of: transferring means for transferring a mark on a document along a transfer path; stamping means for impressing a surface of the document transferred by the transferring means; setting means for setting a density of impression by the stamping means; and driving means for controlling a transferring speed of the document by the transferring means in accordance with information of the set density by the setting means.
Also, the present invention provides a document feeder, which is formed of: a reading section for reading an image of a document; transferring means for transferring the document read by the reading section along a transfer path; stamping means for impressing a mark on a surface of the document transferred by the transferring means; document detecting means disposed in the transfer path; setting means for setting a density of impressing by the stamping means; and driving means for changing a transferring speed of the document from a first transferring speed to a second transferring speed according to a detected signal by the detecting means, and at the same time, for controlling the second transferring speed in accordance with information of the set density by the setting means.
REFERENCES:
patent: 5279453 (1994-01-01), Hashimoto
patent: 5497250 (1996-03-01), Kawashima
patent: 5515153 (1996-05-01), Tokunoh
patent: 5659403 (1997-08-01), Itoigawa
patent: 5784680 (1999-07-01), Taruki
patent: 5815770 (1998-09-01), Ogino
patent: 5819152 (1998-10-01), Kobayashi et al.
patent: 5921545 (1999-07-01), Kobayashi et al.
patent: 5999646 (1999-12-01), Tamagaki
Hilten John S.
Kanesaka & Takeuchi
Nguyen Anthony H.
Nisca Corporation
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