JPS62109562U - - Google Patents
Info
- Publication number
- JPS62109562U JPS62109562U JP19826085U JP19826085U JPS62109562U JP S62109562 U JPS62109562 U JP S62109562U JP 19826085 U JP19826085 U JP 19826085U JP 19826085 U JP19826085 U JP 19826085U JP S62109562 U JPS62109562 U JP S62109562U
- Authority
- JP
- Japan
- Prior art keywords
- density
- memory
- storing
- reproduction
- diagram showing
- 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
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Dry Development In Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Facsimile Image Signal Circuits (AREA)
- Dot-Matrix Printers And Others (AREA)
- Color, Gradation (AREA)
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図はこの考案の一実施例装置における信号
処理の流れを表わすブロツク図、第２図は原稿濃
度と階調ステツプ数の関係を示す図、第３図は４
×４の濃度マトリクスパターンの例を示す図、第
４図は階調ステツプ数とコピー濃度の関係を示す
図、第５図は階調ンステツプ数とコピー濃度変動
の関係を示す図、第６図は階調ステツプ数と網点
面積率の関係を示す図、第７図は原稿濃度、階調
ステツプ数、プリント濃度の関係を示す図である
。
〔符号説明〕、１…イメージセンサ、２…Ａ／
Ｄコンバータ、３…ＣＰＵ、４…コンパレータ、
５…パルスジエネレータ、６…ＲＯＭ。
FIG. 1 is a block diagram showing the flow of signal processing in an apparatus according to an embodiment of the invention, FIG. 2 is a diagram showing the relationship between original density and the number of gradation steps, and FIG.
A diagram showing an example of a ×4 density matrix pattern, FIG. 4 is a diagram showing the relationship between the number of gradation steps and copy density, FIG. 5 is a diagram showing the relationship between the number of gradation steps and copy density variation, and FIG. 7 is a diagram showing the relationship between the number of gradation steps and the dot area ratio, and FIG. 7 is a diagram showing the relationship between the original density, the number of gradation steps, and the print density. [Description of symbols], 1...Image sensor, 2...A/
D converter, 3...CPU, 4...Comparator,
5...Pulse generator, 6...ROM.
Claims (1)
現濃度を安定化する装置であつて、濃度パターン
を記憶させるメモリとして、記録体上に潜像を形
成する際使用する濃度マトリクスパターンの上位
レベルを削除したルツクアツプテーブルを記憶さ
せたメモリを有することを特徴とする再現濃度安
定化装置。 This is a device that stabilizes the reproduction density of prints from image forming equipment that uses developer, and serves as a memory for storing density patterns, deleting the upper level of the density matrix pattern used when forming a latent image on a recording medium. A reproduction density stabilizing device comprising a memory storing a lookup table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19826085U JPS62109562U (en) | 1985-12-25 | 1985-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19826085U JPS62109562U (en) | 1985-12-25 | 1985-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62109562U true JPS62109562U (en) | 1987-07-13 |
Family
ID=31158780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19826085U Pending JPS62109562U (en) | 1985-12-25 | 1985-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62109562U (en) |
-
1985
- 1985-12-25 JP JP19826085U patent/JPS62109562U/ja active Pending
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