JPH0419534U - - Google Patents
Info
- Publication number
- JPH0419534U JPH0419534U JP6146790U JP6146790U JPH0419534U JP H0419534 U JPH0419534 U JP H0419534U JP 6146790 U JP6146790 U JP 6146790U JP 6146790 U JP6146790 U JP 6146790U JP H0419534 U JPH0419534 U JP H0419534U
- Authority
- JP
- Japan
- Prior art keywords
- guide plate
- paper
- thickness
- rotating body
- detecting
- 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
- 108091008695 photoreceptors Proteins 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は第１図中の用紙の厚さ検知機構の動作を示す
断面図、第３図は第１図の実施例の全体動作のフ
ローチヤート、第４図Ａ，Ｂは紙厚に応じたガイ
ド板の上下状態を示す断面図、第５図は本考案の
実施対象となる画像形成装置の概略構成を示す断
面図、第６図は本考案の第二実施例のガイド板の
移動手段を示す断面図、第７図は本考案の実施対
象となる定着装置部分を示す断面図である。
１……給紙装置、４……感光体ドラム、８……
定着装置、９……用紙、１０……搬送路、１１…
…給紙ローラ、１２……レジストローラ、１３…
…厚さ検知機構、１４……ガイド板、１５……移
動機構、１６……フイラー、１７……光センサー
、１８……給紙トレイ、２０……発光部、２１…
…受光部、２２……ソレノイド、２３……偏心カ
ム、３０……移動機構、３１……モーター、３２
……偏心カム付きギヤ。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a sectional view showing the operation of the paper thickness detection mechanism in Figure 1, Figure 3 is a flowchart of the overall operation of the embodiment of Figure 1, and Figures 4A and B are guides according to the paper thickness. FIG. 5 is a cross-sectional view showing the schematic configuration of an image forming apparatus to which the present invention is applied; FIG. 6 is a cross-sectional view showing the guide plate moving means according to the second embodiment of the present invention. 7 is a sectional view showing a portion of the fixing device to which the present invention is implemented. 1... Paper feeding device, 4... Photosensitive drum, 8...
Fixing device, 9...paper, 10...transport path, 11...
...Paper feed roller, 12...Registration roller, 13...
... Thickness detection mechanism, 14 ... Guide plate, 15 ... Movement mechanism, 16 ... Filler, 17 ... Optical sensor, 18 ... Paper feed tray, 20 ... Light emitting section, 21 ...
...Light receiving unit, 22...Solenoid, 23...Eccentric cam, 30...Movement mechanism, 31...Motor, 32
...Gear with eccentric cam.
Claims (1)
段と、用紙搬送方向手前で感光体ドラム等の回転
体に近接配置したガイド板を駆動するガイド板移
動手段とを有し、前記ガイド板移動手段が前記厚
さ検知手段からの情報により前記ガイド板を駆動
して前記回転体への用紙進入経路間隔を可変させ
ることを特徴とする画像形成装置。 The guide plate has a thickness detecting means for detecting the thickness of the paper disposed in the paper feeding section, and a guide plate moving means for driving a guide plate disposed close to a rotating body such as a photoreceptor drum at the front side in the paper conveyance direction. An image forming apparatus characterized in that a plate moving unit drives the guide plate based on information from the thickness detecting unit to vary an interval between paper entrance paths to the rotating body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6146790U JPH0419534U (en) | 1990-06-11 | 1990-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6146790U JPH0419534U (en) | 1990-06-11 | 1990-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0419534U true JPH0419534U (en) | 1992-02-19 |
Family
ID=31589742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6146790U Pending JPH0419534U (en) | 1990-06-11 | 1990-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419534U (en) |
-
1990
- 1990-06-11 JP JP6146790U patent/JPH0419534U/ja active Pending
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