JPS643861U - - Google Patents
Info
- Publication number
- JPS643861U JPS643861U JP20392786U JP20392786U JPS643861U JP S643861 U JPS643861 U JP S643861U JP 20392786 U JP20392786 U JP 20392786U JP 20392786 U JP20392786 U JP 20392786U JP S643861 U JPS643861 U JP S643861U
- Authority
- JP
- Japan
- Prior art keywords
- developing roller
- developing
- regulating piece
- regulating
- developer
- 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.)
- Granted
Links
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の一実施例を示す複写機の現像
装置の現像ローラの正転時の断面図、第２図は同
現像ローラの逆転時の断面図、第３図は第一規制
片および第二規制片の斜視図、第４図は現像ロー
ラ正転時の第一規制片の正面図、第５図は現像ロ
ーラ逆転時の第二規制片の正面図、第６図は現像
ローラの正逆転駆動回路図である。
１：感光体、２：現像槽、３：開口、４：現像
ローラ、５：駆動装置、６：制御装置、７：第一
規制片、８：第二規制片、９：正転用ストツパ、
１０：逆転用ストツパ。
Fig. 1 is a sectional view of the developing roller of a developing device of a copying machine showing an embodiment of the present invention when it rotates in the normal direction, Fig. 2 is a sectional view of the same developing roller when it rotates in the reverse direction, and Fig. 3 shows the first regulating piece. and a perspective view of the second regulating piece, FIG. 4 is a front view of the first regulating piece when the developing roller is rotating forward, FIG. 5 is a front view of the second regulating piece when the developing roller is rotating in reverse, and FIG. FIG. 2 is a forward/reverse rotation drive circuit diagram. 1: Photoreceptor, 2: Developing tank, 3: Opening, 4: Developing roller, 5: Drive device, 6: Control device, 7: First regulating piece, 8: Second regulating piece, 9: Forward rotation stopper,
10: Stopper for reversal.
Claims (1)
感光体側のトナー飛散開口部に正逆転自在に軸支
された現像ローラと、該現像ローラの現像剤の流
量を規制する第一規制片および第二規制片とを具
え、該第一規制片は、前記現像ローラの上方で現
像ローラ正転時の現像剤規制姿勢と現像ローラ逆
転時の規制解除姿勢との間で切換自在とされ、前
記第二規制片は、前記現像ローラの下方で現像ロ
ーラ逆転時の現像剤規制姿勢と現像ローラ正転時
の規制解除姿勢との間で切換自在とされたことを
特徴とする複写機の現像装置。 A developing tank disposed close to the photoreceptor, a developing roller rotatably supported in a forward and reverse direction at a toner scattering opening on the photoreceptor side of the developing tank, and a first regulating piece that regulates the flow rate of developer in the developing roller. and a second regulating piece, the first regulating piece being able to be freely switched between a developer regulating position when the developing roller rotates forward and a regulation releasing position when the developing roller rotates in reverse, above the developing roller; The developing device of the copying machine is characterized in that the second regulating piece is switchable below the developing roller between a developer regulating position when the developing roller is reversed and a regulation releasing position when the developing roller is rotating normally. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986203927U JPH079159Y2 (en) | 1986-12-27 | 1986-12-27 | Copier with selectable image quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986203927U JPH079159Y2 (en) | 1986-12-27 | 1986-12-27 | Copier with selectable image quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS643861U true JPS643861U (en) | 1989-01-11 |
| JPH079159Y2 JPH079159Y2 (en) | 1995-03-06 |
Family
ID=31491952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986203927U Expired - Lifetime JPH079159Y2 (en) | 1986-12-27 | 1986-12-27 | Copier with selectable image quality |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079159Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603858U (en) * | 1983-06-22 | 1985-01-12 | カシオ計算機株式会社 | magnetic brush device |
-
1986
- 1986-12-27 JP JP1986203927U patent/JPH079159Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603858U (en) * | 1983-06-22 | 1985-01-12 | カシオ計算機株式会社 | magnetic brush device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079159Y2 (en) | 1995-03-06 |
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