JPH0437352U - - Google Patents
Info
- Publication number
- JPH0437352U JPH0437352U JP7936590U JP7936590U JPH0437352U JP H0437352 U JPH0437352 U JP H0437352U JP 7936590 U JP7936590 U JP 7936590U JP 7936590 U JP7936590 U JP 7936590U JP H0437352 U JPH0437352 U JP H0437352U
- Authority
- JP
- Japan
- Prior art keywords
- light
- thermal head
- emitting element
- control section
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Electronic Switches (AREA)
Description
図は本考案の一実施例を示し、第１図はプリン
タアセンブリの平面図、第２図は同回路ブロツク
図、第３図は印字濃度検出用の印刷ブロツクを印
刷したプリント用紙の平面図である。
１……プリンタアセンブリ、７……サーマルヘ
ツド、１０……ホトセンサ、１１……発光素子、
１２……受光素子、２０……印字制御部、２１…
…ＣＰＵ、２３……印字濃度制御装置、３０……
プリント用紙、３１……印刷ブロツク。
The figures show one embodiment of the present invention, in which Figure 1 is a plan view of the printer assembly, Figure 2 is a block diagram of the same circuit, and Figure 3 is a plan view of print paper on which printing blocks for detecting print density are printed. be. DESCRIPTION OF SYMBOLS 1... Printer assembly, 7... Thermal head, 10... Photo sensor, 11... Light emitting element,
12... Light receiving element, 20... Printing control section, 21...
...CPU, 23...Print density control device, 30...
Print paper, 31...Print block.
Claims (1)
と同時に、該プリント用紙の一側部に一定幅のブ
ロツクを紙送り方向へ連続的に印刷するように印
字制御部を構成するとともに、前記プリンタの前
記印刷ブロツクに対向する位置に発光素子並びに
受光素子を配設し、前記発光素子の発射光による
前記印刷ブロツクの反射光を、前記受光素子にて
受光し、該受光量によつてサーマルヘツドへの通
電エネルギー量を制御し、印字濃度を一定に制御
するように形成したサーマルヘツドの印字濃度制
御装置。 The print control section is configured to print blocks of a constant width on one side of the print paper continuously in the paper feeding direction at the same time as printing on the print paper set in the printer, and the print control section A light-emitting element and a light-receiving element are disposed at opposing positions, and the light-receiving element receives light reflected from the printing block by the light emitted by the light-emitting element, and the amount of energy supplied to the thermal head is determined based on the amount of received light. A print density control device for a thermal head formed to control the print density and keep the print density constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7936590U JPH0437352U (en) | 1990-07-26 | 1990-07-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7936590U JPH0437352U (en) | 1990-07-26 | 1990-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0437352U true JPH0437352U (en) | 1992-03-30 |
Family
ID=31623461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7936590U Pending JPH0437352U (en) | 1990-07-26 | 1990-07-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0437352U (en) |
-
1990
- 1990-07-26 JP JP7936590U patent/JPH0437352U/ja active Pending
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