Photocopying – Using microcapsules – Sheet feeding
Reexamination Certificate
1999-02-19
2001-06-12
Metjahic, Safet (Department: 2858)
Photocopying
Using microcapsules
Sheet feeding
C399S393000, C271S145000
Reexamination Certificate
active
06246466
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a printer connected to an information terminal unit such as a personal computer, an image pickup apparatus, a television receiver or a set top box for printing data transmitted from the information terminal unit, and particularly to a sheet pack removably mounted on the printer and stacking and containing print sheets thereon, and a printer for mounting the sheet pack thereon.
2. Related Background Art
Heretofore, in a printer connected to a personal computer or an image pickup apparatus for printing the data of the personal computer or the image pickup apparatus on a print sheet, a packing bag containing a bundle of print sheets therein has been opened and the print sheets have been set and printed one by one at a sheet feeding port of the printer, or a desired number of print sheets have been stacked and printed on a sheet feeding portion of the printer.
Also, depending on the kinds of the printer, there is one designed such that a sheet stacking and containing device (a so-called sheet cassette) for stacking and containing print sheets thereon is removably mounted on a printer body. When the sheet cassette is to be mounted on the printer body, a user stacks print sheets in the sheet cassette, and thereafter mounts the sheet cassette in a cassette mounting port formed in the printer body.
A design is made such that the print sheets stacked and contained in the sheet cassette are fed into a recording portion in the printer body while being separated one by one by a sheet feeding roller and a separating pad or the like after the sheet cassette has been mounted in the cassette mounting port.
Such a printer according to the earlier technology, however, in any case, has suffered from the problem of being cumbersome in that the packing bag containing the bundle of print sheets therein must be opened and the print sheets must be taken out one by one and set in the sheet feeding port of the printer or a necessary number of print sheets must be taken out of the opened packing bag and be stacked on the sheet feeding portion of the printer.
Also, there has been the problem of cumbersomeness that when the sheet cassette is to be removably mounted on the printer body, the sheet cassette must be once removed from the printer body and the packing bag containing a bundle of print sheets therein must likewise be opened and a necessary number of print sheets must be taken out of the opened packing bag and be stacked in the sheet cassette, which must then be mounted in the cassette mounting port.
Further, when a suitable number of print sheets are contained in the sheet cassette, the number of the print sheets contained in the sheet cassette is unknown to the user and the number of the remaining sheets is also unclear and therefore, there is a case where the print sheets become exhausted in the course of print output. When the print sheets thus become exhausted in the course of print output, the sheet cassette must be removed from the printer body and the packing bag containing a bundle of print sheets therein must be again opened and a necessary or suitable number of print sheets must be taken out of the opened packing bag and be contained in the sheet cassette, whereafter the sheet cassette must be mounted in the cassette mounting port of the printer body and also, an operation for containing the printing must be applied to the printer body or an information terminal apparatus such as a personal computer, and this is very cumbersome.
Also, the printer body and the information terminal apparatus for transmitting data to the printer cannot discriminate between the qualities of paper of the print sheets and therefore, when print sheets unsuitable for the purpose of printing or print data are contained in the sheet pack or are stacked on the print sheet feeding portion or are set in the sheet feeding port, printing is effected on those print sheets, and this leads to the problem that a desired print result is not obtained.
Further, the printer body and the information terminal apparatus for transmitting data to the printer cannot discriminate between the sizes of the print sheets and therefore effects printing on print sheets of a size differing from a desired size, and this also leads to the problem that a desired print result is not obtained.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a sheet pack which can simply set recording sheets on a recording apparatus and can also cope with various recording apparatuses in which the directions or the like of setting of sheets differ from one another.
It is also an object of the present invention to provide a recording apparatus designed to be capable of reading information regarding sheets contained in a sheet pack and information regarding the recording means of the recording apparatus and effecting optimum recording.
The sheet pack of the present invention is a sheet pack hermetically containing sheets to be supplied to a recording apparatus in a box-shaped container, characterized in that said container is provided with a plurality of feeding ports, and a plurality of bearing ports for sheet feeding means provided on the apparatus body side to feed sheets from said feeding ports to bear against the sheets.
The invention relates to a sheet pack comprising a box-shaped container for enveloping sheets lest a user touches a surface, on which an image is to be formed, of the sheet such as a coated sheet for color image. The sheet pack itself can be mounted on a main body of a printer.
The invention is characterized in that the sheet pack has a plurality of feeding ports for feeding out a sheet therethrough and a plurality of bearing ports through which sheet feeding means (a feed roller) provided in the main body of the printer is brought into contact with the sheet. The reason for providing the plurality of feeding ports and pack on the main body of the printer with different orientations of the sheet pack with respect to the main body of the printer with different orientations of the sheet pack with respect to the main body of the printer.
For example, the sheet pack
11
can be mounted on the main body of the printer in any directions indicated by the arrows A and B in FIG.
2
.
The sheet pack
111
can be mounted on the main body of the printer even if the sheet pack
111
is turned upside-down as shown in FIG.
8
.
The sheet pack
211
can be mounted on the main body of the printer from any one of two sides adjacent to each other (in any directions indicated by the arrows C and D) as shown in FIG.
11
.
REFERENCES:
patent: 4037953 (1977-07-01), Sone et al.
patent: 4348101 (1982-09-01), Schonfeld
patent: 5023658 (1991-06-01), Toyama et al.
patent: 5029838 (1991-07-01), Kunihiro
patent: 5060010 (1991-10-01), Ogura
patent: 5317365 (1994-05-01), Tschiderer et al.
patent: 5653435 (1997-08-01), Yoneda
Hirano Hirofumi
Kurata Tetsuji
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Leroux E P
Metjahic Safet
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