JPH02111143U - - Google Patents
Info
- Publication number
- JPH02111143U JPH02111143U JP1953989U JP1953989U JPH02111143U JP H02111143 U JPH02111143 U JP H02111143U JP 1953989 U JP1953989 U JP 1953989U JP 1953989 U JP1953989 U JP 1953989U JP H02111143 U JPH02111143 U JP H02111143U
- Authority
- JP
- Japan
- Prior art keywords
- image
- color
- exposed
- medium
- image forming
- 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
- 238000012545 processing Methods 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Landscapes
- Color Electrophotography (AREA)
- Developing For Electrophotography (AREA)
Description
第１図はこの考案の２色画像形成装置の概略側
面図、第２図はこの考案の２色画像形成装置の作
動手順を示すフローチヤート、第３図は第１色目
現像密度とキヤツチ・アツプ印加電圧との関係を
示すグラフ、第４図はキヤツチ・アツプ印加電圧
とＭＣＯ量混入量との関係を示すグラフ、第５図
ａ，ｂは１枚の原稿における第１色目の画像領域
の一例を示す概略平面図及びその第１色目の画像
領域に応じたキヤツチ・アツプ印加電圧の印加状
態を示すグラフ、第６図は従来の２色画像形成装
置の概略側面図である。
符号説明、１０……感光体ドラム（画像担持体
）１２……第１の現像器、１４……第２の現像器
、１６……キヤツチ・アツプ・マグロール（現像
媒体除去手段）、２８……第１の露光手段、３０
……第２の露光手段、３２……画像読取装置、４
８……像密度検出手段、５０……ＣＰＵ（処理手
段）、５２……制御手段。
Fig. 1 is a schematic side view of the two-color image forming apparatus of this invention, Fig. 2 is a flowchart showing the operating procedure of the two-color image forming apparatus of this invention, and Fig. 3 shows the first color development density and catch up. A graph showing the relationship between the applied voltage and Figure 4 is a graph showing the relationship between the catch-up applied voltage and the amount of MCO mixed in. Figures 5 a and b are examples of the image area of the first color in one document. FIG. 6 is a schematic plan view showing a conventional two-color image forming apparatus, and a graph showing the applied state of the catch-up voltage according to the first color image area. Explanation of symbols, 10... Photosensitive drum (image bearing member) 12... First developing device, 14... Second developing device, 16... Catch up mag roll (developing medium removing means), 28... first exposure means, 30
...Second exposure means, 32...Image reading device, 4
8... Image density detection means, 50... CPU (processing means), 52... Control means.
Claims (1)
光及びポジ像の露光を行つて２色画像の記録を行
うと共に、第２色目の現像の後処理側に上記画像
担持体に付着する現像媒体を除去する現像媒体除
去手段を配設して成る２色画像形成装置において
、第１色目に相当する画像の像密度を検出する像
密度検出手段と、上記像密度検出手段にて検出さ
れた検出値にて上記画像媒体除去手段の印加バイ
アス電圧を設定する処理手段と、上記処理手段か
らの信号を受けて上記現像媒体除去手段に所定電
圧を印加する制御手段とを具備して成ることを特
徴とする２色画像形成装置。 After the image carrier is initially charged, a negative image is exposed and a positive image is exposed to record a two-color image, and a developer adheres to the image carrier on the post-processing side of the second color development. In a two-color image forming apparatus including a developing medium removing means for removing a medium, an image density detecting means detecting an image density of an image corresponding to the first color; A processing means for setting a bias voltage applied to the image medium removing means based on a detected value, and a control means for applying a predetermined voltage to the developing medium removing means in response to a signal from the processing means. Features of a two-color image forming device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1953989U JPH0710359Y2 (en) | 1989-02-23 | 1989-02-23 | Two-color image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1953989U JPH0710359Y2 (en) | 1989-02-23 | 1989-02-23 | Two-color image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02111143U true JPH02111143U (en) | 1990-09-05 |
| JPH0710359Y2 JPH0710359Y2 (en) | 1995-03-08 |
Family
ID=31235140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1953989U Expired - Lifetime JPH0710359Y2 (en) | 1989-02-23 | 1989-02-23 | Two-color image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710359Y2 (en) |
-
1989
- 1989-02-23 JP JP1953989U patent/JPH0710359Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710359Y2 (en) | 1995-03-08 |
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