JPH0168835U - - Google Patents
Info
- Publication number
- JPH0168835U JPH0168835U JP1987165500U JP16550087U JPH0168835U JP H0168835 U JPH0168835 U JP H0168835U JP 1987165500 U JP1987165500 U JP 1987165500U JP 16550087 U JP16550087 U JP 16550087U JP H0168835 U JPH0168835 U JP H0168835U
- Authority
- JP
- Japan
- Prior art keywords
- gradation data
- host device
- external host
- switching circuit
- memory
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fax Reproducing Arrangements (AREA)
- Dot-Matrix Printers And Others (AREA)
- Color, Gradation (AREA)
- Facsimiles In General (AREA)
- Storing Facsimile Image Data (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は第１図の実施例のビデオＲＡＭからのデータ
の読み出しを示す図、第３図は従来例の外部ホス
ト機器のブロツク図である。
１……コンピユータ（外部ホスト機器）、２…
…プリンタ、４，７……第１、第２切換回路、５
……画像メモリ、８……印画用ラインメモリ、１
０……印画制御回路。
Figure 1 is a block diagram of one embodiment of the present invention;
This figure shows the reading of data from the video RAM in the embodiment of FIG. 1, and FIG. 3 is a block diagram of a conventional external host device. 1...Computer (external host device), 2...
...Printer, 4, 7...First and second switching circuits, 5
...Image memory, 8...Line memory for printing, 1
0...Printing control circuit.
Claims (1)
ムにおいて、 前記プリンタは、Ａ／Ｄ変換された映像信号ま
たは前記外部ホスト機器からの階調データを切換
出力する第１切換回路と、この第１切換回路の出
力が階調データとして書き込みあるいは読み出さ
れる画像メモリと、この画像メモリから読み出さ
れた階調データまたは前記外部ホスト機器からの
階調データを切換出力する第２切換回路と、この
第２切換回路の出力が書き込みあるいは読み出さ
れる印画用ラインメモリと、この印画用ラインメ
モリから読み出された階調データに基づいて、サ
ーマルヘツドを制御して階調印画を行う印画制御
回路と、前記画像メモリからの階調データを映像
信号に変換して表示器に出力するエンコーダとを
備え、 前記外部ホスト機器は、ビデオメモリを備え、
このビデオメモリから読み出した階調データを階
調演算を行うことなくそのまま前記プリンタに転
送することを特徴とする印字システム。[Claims for Utility Model Registration] In a printing system including a printer and an external host device, the printer includes a first switching circuit that switches and outputs an A/D converted video signal or gradation data from the external host device. an image memory into which the output of the first switching circuit is written or read as gradation data; and a second switching circuit which switches and outputs the gradation data read from the image memory or the gradation data from the external host device. a printing line memory into which the output of the second switching circuit is written or read, and a printing machine in which a thermal head is controlled to perform gradation printing based on the gradation data read from the printing line memory. The external host device includes a control circuit, and an encoder that converts the gradation data from the image memory into a video signal and outputs it to a display device, and the external host device includes a video memory.
A printing system characterized in that the gradation data read from the video memory is directly transferred to the printer without performing gradation calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987165500U JPH0731652Y2 (en) | 1987-10-29 | 1987-10-29 | Printing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987165500U JPH0731652Y2 (en) | 1987-10-29 | 1987-10-29 | Printing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0168835U true JPH0168835U (en) | 1989-05-08 |
| JPH0731652Y2 JPH0731652Y2 (en) | 1995-07-19 |
Family
ID=31452041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987165500U Expired - Lifetime JPH0731652Y2 (en) | 1987-10-29 | 1987-10-29 | Printing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731652Y2 (en) |
-
1987
- 1987-10-29 JP JP1987165500U patent/JPH0731652Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731652Y2 (en) | 1995-07-19 |
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