JPH0278952U - - Google Patents
Info
- Publication number
- JPH0278952U JPH0278952U JP15966788U JP15966788U JPH0278952U JP H0278952 U JPH0278952 U JP H0278952U JP 15966788 U JP15966788 U JP 15966788U JP 15966788 U JP15966788 U JP 15966788U JP H0278952 U JPH0278952 U JP H0278952U
- Authority
- JP
- Japan
- Prior art keywords
- unit
- image forming
- torque
- motor
- forming unit
- 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 6
- 238000010586 diagram Methods 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Description
第１図はＤＰＬＬ方式のモータ速度制御のブロ
ツク構成図、第２図は本考案のユニツト検知装置
における検知制御フローを示すフローチヤート、
第３図ａは本考案のユニツト検知装置を適用し得
る感光体ドラムユニツトの概略側面図、第３図ｂ
は同図ａのＡ―Ａ線断面図、第４図は感光体ドラ
ムユニツト、現像器ユニツトが本体装置に着脱自
在に設けられた画像形成装置の一例を示す斜視図
、第５図ａはユニツトの存否の検知機構を示す模
式図、第５図ｂは感光体ドラムユニツトの新旧の
検知機構を示す模式図である。
６…ＭＰＵ、７…ドライバ、８…モータ、９…
エンコーダ、１０，１１，１２…負荷、１３…位
相・速度検波部。
Fig. 1 is a block diagram of motor speed control using the DPLL method, and Fig. 2 is a flowchart showing the detection control flow in the unit detection device of the present invention.
FIG. 3a is a schematic side view of a photosensitive drum unit to which the unit detection device of the present invention can be applied, and FIG. 3b
4 is a perspective view showing an example of an image forming apparatus in which a photoreceptor drum unit and a developing device unit are removably installed in the main unit, and FIG. FIG. 5b is a schematic diagram showing a detection mechanism for the presence or absence of a photoreceptor drum unit. 6...MPU, 7...driver, 8...motor, 9...
Encoder, 10, 11, 12...load, 13...phase/velocity detection unit.
Claims (1)
トを有する画像形成装置のユニツト検知装置にお
いて、 前記像形成ユニツトに設けられた被駆動装置に
動力を供給するモータと、該モータのトルクを検
出するトルク検出手段を有し、該トルク検出手段
の出力の変化に基づいて前記像形成ユニツトの装
着態様を判別することを特徴とするユニツト検知
装置。[Claims for Utility Model Registration] A unit detection device for an image forming apparatus having an image forming unit removably formed in a main unit, comprising: a motor for supplying power to a driven device provided in the image forming unit; A unit detecting device comprising a torque detecting means for detecting the torque of the motor, and determining a mounting state of the image forming unit based on a change in the output of the torque detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15966788U JPH0278952U (en) | 1988-12-08 | 1988-12-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15966788U JPH0278952U (en) | 1988-12-08 | 1988-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0278952U true JPH0278952U (en) | 1990-06-18 |
Family
ID=31441064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15966788U Pending JPH0278952U (en) | 1988-12-08 | 1988-12-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0278952U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59202599A (en) * | 1983-05-02 | 1984-11-16 | 富士ゼロックス株式会社 | Detector for electrophotographic copying machine |
| JPS63214766A (en) * | 1987-03-03 | 1988-09-07 | Mita Ind Co Ltd | Mounting detector for process unit |
-
1988
- 1988-12-08 JP JP15966788U patent/JPH0278952U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59202599A (en) * | 1983-05-02 | 1984-11-16 | 富士ゼロックス株式会社 | Detector for electrophotographic copying machine |
| JPS63214766A (en) * | 1987-03-03 | 1988-09-07 | Mita Ind Co Ltd | Mounting detector for process unit |