JPS5762136A - Display device of residual quantity of paper - Google Patents
Display device of residual quantity of paperInfo
- Publication number
- JPS5762136A JPS5762136A JP55137953A JP13795380A JPS5762136A JP S5762136 A JPS5762136 A JP S5762136A JP 55137953 A JP55137953 A JP 55137953A JP 13795380 A JP13795380 A JP 13795380A JP S5762136 A JPS5762136 A JP S5762136A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- end surface
- residual quantity
- light guide
- placing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
PURPOSE: To early give notice of preparations for paper supply by adopting optical fibr in an optical transmission path for connecting thickness of paper end surface with a display device in order to indiucate thickness of paper residual quantity in a copier, whereby the paper residual quantity is indicated in a simple construction.
CONSTITUTION: At the time of copying, a light source 10 is lighted and light is directed under a paper placing plate 4 through a hole 7 of a bottom plate of a paper feeding cassette 1. The light passes through holes 1a, 17a, 18a, 16 and incides the end surface of a light guide 2 formed of optical fiber, which is opposed to a paper thickness portion above the paper placing plate 4, not the light guide end surface opposed to a paper thickness portion above the paper placing plate. Accordingly, a black portion of the light guide end surface opposed to an indicating device 9 shows the paper residual quantity. It never happens that an operator starts copying operation without noticing lack of paper and is confused when paper is out in the middle of copying operation.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55137953A JPS5762136A (en) | 1980-10-02 | 1980-10-02 | Display device of residual quantity of paper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55137953A JPS5762136A (en) | 1980-10-02 | 1980-10-02 | Display device of residual quantity of paper |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5762136A true JPS5762136A (en) | 1982-04-15 |
Family
ID=15210568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55137953A Pending JPS5762136A (en) | 1980-10-02 | 1980-10-02 | Display device of residual quantity of paper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5762136A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59187651U (en) * | 1983-05-27 | 1984-12-12 | コニカ株式会社 | Paper remaining amount display device |
JPS629551U (en) * | 1985-06-29 | 1987-01-21 | ||
JPS629552U (en) * | 1985-06-29 | 1987-01-21 |
-
1980
- 1980-10-02 JP JP55137953A patent/JPS5762136A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59187651U (en) * | 1983-05-27 | 1984-12-12 | コニカ株式会社 | Paper remaining amount display device |
JPS629551U (en) * | 1985-06-29 | 1987-01-21 | ||
JPS629552U (en) * | 1985-06-29 | 1987-01-21 |
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