JPH0178638U - - Google Patents
Info
- Publication number
- JPH0178638U JPH0178638U JP1987175484U JP17548487U JPH0178638U JP H0178638 U JPH0178638 U JP H0178638U JP 1987175484 U JP1987175484 U JP 1987175484U JP 17548487 U JP17548487 U JP 17548487U JP H0178638 U JPH0178638 U JP H0178638U
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- image forming
- forming apparatus
- detection signal
- detection means
- 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
- 238000001514 detection method Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Description
第１図は本考案に係る画像形成装置の一実施例
を示す概念図、第２図は第１図で示した実施例に
おいて筐体を拡開させた状態を示す概念図、第３
図は検出装置の要部拡大図および側面図、第４図
は検出装置の要部拡大図、第５図は第１図で示し
た実施例のブロツク図、第６図は検出装置の動作
を説明するためのタイミングチヤート、第７図お
よび第８図は第１図で示した実施例に使用された
他の検出装置を示す要部概念斜視図、第９図およ
び第１０図は本考案に係る画像形成装置の他の実
施例を示す概念図である。
６……装置本体、７……筐体、８……軸、１２
，２２，３４，３５……検出装置、１３……爪、
１４，２６……回転部材、１５，２４……フオト
センサ、１６，２５……軸、１７，２３ａ，２３
ｂ……支持部材、３２……トレイ、３３……ロー
ラ。
FIG. 1 is a conceptual diagram showing an embodiment of an image forming apparatus according to the present invention, FIG. 2 is a conceptual diagram showing the embodiment shown in FIG. 1 with the housing expanded, and FIG.
The figures are an enlarged view and side view of the main parts of the detection device, Fig. 4 is an enlarged view of the main parts of the detection device, Fig. 5 is a block diagram of the embodiment shown in Fig. 1, and Fig. 6 shows the operation of the detection device. A timing chart for explanation, FIGS. 7 and 8 are conceptual perspective views of main parts showing other detection devices used in the embodiment shown in FIG. 1, and FIGS. 9 and 10 are diagrams according to the present invention. FIG. 3 is a conceptual diagram showing another embodiment of such an image forming apparatus. 6... Device body, 7... Housing, 8... Axis, 12
, 22, 34, 35...detection device, 13...claw,
14, 26... Rotating member, 15, 24... Photo sensor, 16, 25... Shaft, 17, 23a, 23
b...Supporting member, 32...Tray, 33...Roller.
Claims (1)
置本体の上面を開閉する筐体と、記録紙搬送部と
を有する画像形成装置において、 前記記録紙搬送部により搬送される記録紙の通
過によつて作動し、該記録紙の存在を検出すると
ともに、前記筐体の拡開によつて作動し、当該筐
体の拡開を検出する検出手段と、 基準信号と前記検出手段の検出信号双方が入力
された場合は、前記記録紙が前記記録紙搬送部内
に存在していると判断するとともに、前記検出手
段の検出信号のみが入力された場合は、前記筐体
が拡開されていると判断する判断手段と を具えたことを特徴とする画像形成装置。[Claims for Utility Model Registration] An image forming apparatus having a casing disposed within an image forming apparatus main body for opening and closing the top surface of the image forming apparatus main body, and a recording paper conveying section, wherein the recording paper conveying section a detection means that is activated by the passage of the conveyed recording paper to detect the presence of the recording paper, and is activated by the expansion of the housing to detect the expansion of the housing; and a reference signal. If both the detection signal and the detection signal of the detection means are input, it is determined that the recording paper is present in the recording paper conveyance section, and if only the detection signal of the detection means is input, the recording paper is determined to be present in the recording paper transport section. 1. An image forming apparatus comprising: determining means for determining that a body is expanded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175484U JPH0178638U (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175484U JPH0178638U (en) | 1987-11-17 | 1987-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0178638U true JPH0178638U (en) | 1989-05-26 |
Family
ID=31467275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987175484U Pending JPH0178638U (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0178638U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008179476A (en) * | 2006-12-25 | 2008-08-07 | Ricoh Co Ltd | Paper feeder and image forming device |
| WO2009072485A1 (en) * | 2007-12-03 | 2009-06-11 | Aruze Corp. | Paper sheet processing device |
-
1987
- 1987-11-17 JP JP1987175484U patent/JPH0178638U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008179476A (en) * | 2006-12-25 | 2008-08-07 | Ricoh Co Ltd | Paper feeder and image forming device |
| WO2009072485A1 (en) * | 2007-12-03 | 2009-06-11 | Aruze Corp. | Paper sheet processing device |
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