JPH0416451U - - Google Patents
Info
- Publication number
- JPH0416451U JPH0416451U JP5605990U JP5605990U JPH0416451U JP H0416451 U JPH0416451 U JP H0416451U JP 5605990 U JP5605990 U JP 5605990U JP 5605990 U JP5605990 U JP 5605990U JP H0416451 U JPH0416451 U JP H0416451U
- Authority
- JP
- Japan
- Prior art keywords
- process unit
- developing
- developer
- toner
- chamber
- 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
- 239000000203 mixture Substances 0.000 claims 1
Landscapes
- Dry Development In Electrophotography (AREA)
- Electrophotography Configuration And Component (AREA)
Description
第１図は本考案の一実施例を示すプロセスユニ
ツトの斜視図、第２図は本実施例の現像剤カート
リツジとプロセスユニツトのカートリツジ受けを
示す斜視図、第３図及び第４図は本実施例の現像
剤カートリツジをカートリツジ受けに装着して示
すカートリツジ両端部分の各断面図、第５図は本
実施例のプロセスユニツトの新品時の全体を示す
断面図、第６図は第５図に示すプロセスユニツト
において、現像剤カートリツジを開封して行つた
現像剤の充填と、トナー補給カートリツジをトナ
ー補給室に装着した状態を示す断面図、第７図は
本実施例のプロセスユニツトを画像形成装置本体
内にセツトした状態を示す構成図、第８図は従来
例のプロセスユニツトで１成分現像剤を用いるタ
イプの斜視図、第９図は従来例のプロセスユニツ
トで２成分現像剤を用いるタイプの現像器部分の
断面図である。
１５……プロセスユニツト、１６……クリーナ
部、１７……像担持体、１９……現像器、１９ａ
……現像室、１９ｂ……トナー補給室、２０……
現像剤カートリツジ、２１ａ……トナー補給用開
口部、２３ｂ……現像剤カートリツジの底部開口
部、２４……シール部材、２５……現像剤、３０
……現像剤補給用開口部、４５……画像形成装置
本体。
Fig. 1 is a perspective view of a process unit showing one embodiment of the present invention, Fig. 2 is a perspective view showing a developer cartridge of this embodiment and a cartridge receptacle of the process unit, and Figs. 3 and 4 are views of the present embodiment. 5 is a cross-sectional view showing the entire process unit of this example when new, and FIG. 6 is the same as that shown in FIG. FIG. 7 is a cross-sectional view showing the state in which the developer cartridge is unsealed and filled with developer and the toner replenishment cartridge is installed in the toner replenishment chamber in the process unit. 8 is a perspective view of a conventional process unit using a one-component developer, and FIG. 9 is a conventional process unit using a two-component developer. It is a sectional view of a container part. 15...Process unit, 16...Cleaner section, 17...Image carrier, 19...Developer, 19a
...Development chamber, 19b...Toner supply chamber, 20...
Developer cartridge, 21a...Toner supply opening, 23b...Bottom opening of developer cartridge, 24...Seal member, 25...Developer, 30
. . . Developer replenishment opening, 45 . . . Image forming apparatus main body.
Claims (1)
用いて像担持体上の画像を現像するための現像室
と、該現像室にトナーを補給するためのトナー補
給室とを有する現像器を備え、画像形成装置本体
に対し着脱できるプロセスユニツトにおいて、 前記プロセスユニツトが前記画像形成装置本体
に装着されて最初に使用される際に用いられる前
記２成分現像剤の初回現像剤を予め収容し、底部
開口部をシールされた現像剤カートリツジと、 前記現像室上部には前記現像剤カートリツジの
前記底部開口部に対応した開口部を設け、前記現
像剤カートリツジの前記底部開口部が前記現像室
上部の前記開口部に一致した状態で、前記現像室
と前記現像剤カートリツジとが一体的に組み付け
されたことを特徴とするプロセスユニツト。 ２ 前記現像剤カートリツジは、前記プロセスユ
ニツトが前記画像形成装置本体に装着されて最初
に使用する際の前記底部開口部のシール開封以後
、前記プロセスユニツトの枠体として機能するこ
とを特徴とする請求項１記載のプロセスユニツト
。 ３ 前記現像器が像担持体とクリーナ部と共に一
体化されて前記画像形成装置本体に着脱自在とさ
れると共に、前記現像器の前記トナー補給室には
その上部にトナー補充用開口部を有することを特
徴とする請求項２記載のプロセスユニツト。[Scope of Claim for Utility Model Registration] 1. A developing chamber for developing an image on an image bearing member using a two-component developer containing a mixture of toner and carrier, and a toner supply chamber for replenishing the developing chamber with toner. In a process unit that is removably attached to an image forming apparatus main body, the two-component developer is used for initial development when the process unit is attached to the image forming apparatus main body and used for the first time. a developer cartridge containing a developer in advance and having a sealed bottom opening; an opening corresponding to the bottom opening of the developer cartridge is provided in the upper part of the developing chamber; A process unit characterized in that the developing chamber and the developer cartridge are integrally assembled in a state in which the developing chamber and the developer cartridge are aligned with the opening in the upper part of the developing chamber. 2. The developer cartridge functions as a frame for the process unit after the seal at the bottom opening is opened when the process unit is installed in the image forming apparatus main body and used for the first time. The process unit described in item 1. 3. The developing device is integrated with the image carrier and the cleaner section and is detachably attached to the main body of the image forming apparatus, and the toner replenishing chamber of the developing device has an opening for toner replenishment at an upper portion thereof. The process unit according to claim 2, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5605990U JPH0416451U (en) | 1990-05-29 | 1990-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5605990U JPH0416451U (en) | 1990-05-29 | 1990-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0416451U true JPH0416451U (en) | 1992-02-10 |
Family
ID=31579555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5605990U Pending JPH0416451U (en) | 1990-05-29 | 1990-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007226269A (en) * | 2007-05-17 | 2007-09-06 | Brother Ind Ltd | Image forming apparatus |
| US8417177B2 (en) | 2004-03-31 | 2013-04-09 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having lowered image forming position and recessed sheet stacking portion |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51117042A (en) * | 1975-03-14 | 1976-10-14 | Eastman Kodak Co | Tonor accommodation unit |
| JPS639237A (en) * | 1986-06-30 | 1988-01-14 | Nec Corp | Conference talking system utilizing satellite line |
| JPH02122901A (en) * | 1988-11-02 | 1990-05-10 | Hashie Kogyo Kk | Detecting method and device for iron piece in log, and iron piece-detecting sensor used for the same device |
-
1990
- 1990-05-29 JP JP5605990U patent/JPH0416451U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51117042A (en) * | 1975-03-14 | 1976-10-14 | Eastman Kodak Co | Tonor accommodation unit |
| JPS639237A (en) * | 1986-06-30 | 1988-01-14 | Nec Corp | Conference talking system utilizing satellite line |
| JPH02122901A (en) * | 1988-11-02 | 1990-05-10 | Hashie Kogyo Kk | Detecting method and device for iron piece in log, and iron piece-detecting sensor used for the same device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8417177B2 (en) | 2004-03-31 | 2013-04-09 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having lowered image forming position and recessed sheet stacking portion |
| JP2007226269A (en) * | 2007-05-17 | 2007-09-06 | Brother Ind Ltd | Image forming apparatus |
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