JPH02124941U - - Google Patents

Description

[Brief explanation of drawings]

1 to 4 show a first embodiment of the present invention, FIG. 1A is a side view showing the entire image forming apparatus equipped with the cassette mounting device of the first embodiment, and FIG. FIG. 2A is an enlarged side sectional view of the cassette, FIG. 2B is a partially cutaway plan view of the cassette, and FIGS. 3A to E. 4 is a perspective view of the same portion, and FIG.
Figures C to C show a second embodiment of the present invention in which the ejection/retraction mechanism has been changed, and Figure A is a partially enlarged sectional view showing the state before the cassette is installed;
6B and C are partially enlarged cross-sectional views showing the state after installation, FIG. 6A is a partial plan view showing the state in which rollers are added in the second embodiment, and FIG. 6B is a side view of the same portion. , and FIGS. 7A to 7C show a third embodiment of the present invention in which the ejection and retraction mechanism is further modified,
Figure A is a partly enlarged cross-sectional view showing the state before the cassette is installed, and B and C are partly enlarged cross-sectional views showing the state after the cassette is installed.
The figure is a partially cutaway side view showing a fourth embodiment in which two cassettes are installed, and FIG. 9 is a partial side cross-sectional view showing a fifth embodiment in which a paper feed roller is provided on the cassette side. FIG. 10 is a partial side sectional view showing a sixth embodiment in which a separation pad is provided on a guide member, and FIGS. 11A to C are a seventh embodiment in which a cassette mounting device is provided in upper and lower stages. Figure A is a partially cutaway side view, Figure B is a partial plan view of the cassette installed in the upper stage, Figure C is a partially cutaway side view, and Figure C is a partially cutaway side view. 12
Figures A and B show the prior art, where Figure A is a side cross-sectional view schematically showing an image forming apparatus, and Figure B is an enlarged partial cross-sectional view illustrating a paper jam state. A...Cassette loading device, 11... Feeding section, 1
2... Feeding roller, 20... Cassette, 24...
Guide member, 24a...Horizontal projecting piece, 50...Cam groove, 70...Cam plate, 80...Semispherical member, 41
, 42, 43, 44, 45, 46...transport passage.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a cassette mounting device for an image forming apparatus that removably mounts a cassette containing and stacking sheet materials into an image forming apparatus main body, the sheet material is placed in the cassette to form the image. A guide member that guides the feeding section of the apparatus main body is removably equipped, and the guide member is positioned inside the cassette before the cassette is installed in the image forming apparatus main body by the ejecting/retracting mechanism, and the cassette is placed in the image forming apparatus. A cassette mounting device for an image forming apparatus, characterized in that the cassette mounting device for an image forming apparatus is configured to protrude from the cassette after being mounted within the main body of the device. (2) A first conveyance path is provided in the feeding section at a position where the leading end of the guide member protrudes when the cassette is mounted from one direction, and the leading end of the guide member projects when the cassette is mounted from the other direction. 2. The cassette mounting device for an image forming apparatus according to claim 1, further comprising a second conveyance path provided at a position where the portion protrudes.