JPH0245559U - - Google Patents
Info
- Publication number
- JPH0245559U JPH0245559U JP12125088U JP12125088U JPH0245559U JP H0245559 U JPH0245559 U JP H0245559U JP 12125088 U JP12125088 U JP 12125088U JP 12125088 U JP12125088 U JP 12125088U JP H0245559 U JPH0245559 U JP H0245559U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- voltage
- electromagnetic clutch
- power supply
- control section
- 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
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案を適用した画像形成装置の一実
施例の説明図、第２図は本考案の要部を成す駆動
部の構成説明図、第３図は制御部によつて制御さ
れる被制御対象のブロツク図、第４図ａ，ｂ，ｃ
は電磁クラツチの電源回路図、第５図は各構成部
分の動作を示すタイミングチヤートである。
１……ランプ、２，５〜９……ミラー、３……
第１スキヤナ、４……原稿台、１１……感光体、
１３……帯電チヤージヤ、１４……イレーサ、１
５，１６……現像装置、１７……レジストローラ
、２３……搬送ベルト、２４……定着ユニツト、
２５……分離爪、２６……ジヨガー、２７……中
間搬送ユニツト、２８……反転路、２９……反転
ローラ、３０……中間トレイ、４０……電磁クラ
ツチ、４０ａ……軸、４１……現像ギヤ、４２…
…現像ローラ、４２ａ……軸、４３……パルスジ
エネレータ、４４……フオトインタラプタ、４５
，４６……伝達ギヤ。
Fig. 1 is an explanatory diagram of an embodiment of an image forming apparatus to which the present invention is applied, Fig. 2 is an explanatory diagram of the configuration of a driving section that constitutes the main part of the present invention, and Fig. 3 is an explanatory diagram of the configuration of a driving section that is controlled by a control section. Block diagram of controlled object, Figure 4 a, b, c
is a power supply circuit diagram of the electromagnetic clutch, and FIG. 5 is a timing chart showing the operation of each component. 1... Lamp, 2, 5-9... Mirror, 3...
1st scanner, 4... document table, 11... photoreceptor,
13... Charger, 14... Eraser, 1
5, 16...Developing device, 17...Register roller, 23...Transport belt, 24...Fixing unit,
25...Separation claw, 26...Jerger, 27...Intermediate conveyance unit, 28...Reversing path, 29...Reversing roller, 30...Intermediate tray, 40...Electromagnetic clutch, 40a...Shaft, 41... Developing gear, 42...
...Developing roller, 42a... Shaft, 43... Pulse generator, 44... Photo interrupter, 45
, 46...Transmission gear.
Claims (1)
クラツチの回転軸の回転速度を検出する検知手段
と、該現像装置の該回転軸の回転速度が所定値を
下回つたことが該検知手段によつて検知されたと
きに該モータへの入力電源電圧を定格電圧よりも
高くして印加する制御部とを備えたことを特徴と
する画像形成装置における現像装置の駆動部。 a detection means for detecting a rotational speed of a rotating shaft of an electromagnetic clutch that transmits a driving force from a motor to a developing device; A control section for applying an input power supply voltage to the motor at a level higher than a rated voltage when a voltage is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12125088U JPH0245559U (en) | 1988-09-16 | 1988-09-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12125088U JPH0245559U (en) | 1988-09-16 | 1988-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0245559U true JPH0245559U (en) | 1990-03-28 |
Family
ID=31368087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12125088U Pending JPH0245559U (en) | 1988-09-16 | 1988-09-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0245559U (en) |
-
1988
- 1988-09-16 JP JP12125088U patent/JPH0245559U/ja active Pending
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