JPS63199661A - Printing controller in handy printer - Google Patents
Printing controller in handy printerInfo
- Publication number
- JPS63199661A JPS63199661A JP3268087A JP3268087A JPS63199661A JP S63199661 A JPS63199661 A JP S63199661A JP 3268087 A JP3268087 A JP 3268087A JP 3268087 A JP3268087 A JP 3268087A JP S63199661 A JPS63199661 A JP S63199661A
- Authority
- JP
- Japan
- Prior art keywords
- speed information
- time
- thermal head
- head
- rotary encoder
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 238000001514 detection method Methods 0.000 claims description 8
- 238000003079 width control Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
- B41J2/355—Control circuits for heating-element selection
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、手動走査によって印刷するサーマル方式のハ
ンディプリンタに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal type handy printer that prints by manual scanning.
従来から手動走査によるサーマル方式のハンディプリン
タは数多く提案されている。Many thermal type handy printers using manual scanning have been proposed.
これらは手動式のため印刷スピードが変動していた。Since these were manual, the printing speed varied.
このスピード変動によってサーマルヘッドへの蓄熱の度
合−が変化し、印字濃度が変るという問題点があった。This speed variation causes a problem in that the degree of heat accumulation in the thermal head changes, causing a change in print density.
本発明の目的は、手動走査時のスピードが変動しても、
印刷時の発色濃度を安定させ、印字品質を改着したサー
マル方式のハンディプリンタを提供することにある。The object of the present invention is to
To provide a thermal type handy printer that stabilizes color density during printing and improves print quality.
本発明は、手動走査時のスピードを検出する速度情報検
出手段と、該速度情報検出手段の検出結果によって前記
サーマルヘッドに配置された発熱要素への印加エネルギ
可変手段を有することを特徴とするハンディプリ、ン夕
の印字制御回路である〔実施例〕
第１図は本発明によるハンディプリンタの印字制御装置
の構成を示す略図である。１はサーマルヘッド、２はハ
ンディプリンタの移動によって回転するローラ、３はロ
ーラ２の回転を検出する速度情報検出手段の一種のロー
タリイエンコーダ、４はワンシ冒ット回路、５は印加エ
ネルギ可変手段の一種で速度情報によってサーマルヘッ
ド１への通電時間を可変する通電幅制御手段、６はハン
ディプリンタを統括制御する０Ｐ１７，７はヘッドドツ
イプエ０，８はヘッドドライブエＣ７の電源端子７αを
オンオフする給電制御トランジスタ、９は電源をそれぞ
れ示している。The present invention provides a handy handheld device characterized by having speed information detection means for detecting the speed during manual scanning, and means for varying the energy applied to the heat generating element arranged in the thermal head based on the detection result of the speed information detection means. Embodiment of Print Control Circuit for Printer and Printer FIG. 1 is a schematic diagram showing the configuration of a print control device for a handy printer according to the present invention. 1 is a thermal head, 2 is a roller that rotates as the handy printer moves, 3 is a rotary encoder, which is a type of speed information detection means for detecting the rotation of roller 2, 4 is a one-shot printing circuit, and 5 is an applied energy variable means. A type of energization width control means that varies the energization time to the thermal head 1 according to speed information, 6 is a power supply that controls the handy printer in an integrated manner 0P17, 7 is a head drive controller 0, 8 is a power supply that turns on and off the power supply terminal 7α of the head drive controller C7 Control transistors and 9 indicate power supplies, respectively.
通電幅制御手段５は、トランジスタ１１、抵抗器１２，
１！５，１４．コンデンサ１５からなる充放電回路と、
オペアンプ１８．抵抗器１６，１７、コンデンサ１９か
らなる積分回路と、抵抗器２０．２１．サーミスタ２２
．コンデンサ２５゜トランジスタ２４．コンパレータ２
５からなる電圧比較回路を有している。The current width control means 5 includes a transistor 11, a resistor 12,
1!5,14. A charging/discharging circuit consisting of a capacitor 15,
Operational amplifier 18. An integrating circuit consisting of resistors 16, 17 and a capacitor 19, and resistors 20, 21. Thermistor 22
．． Capacitor 25° Transistor 24. Comparator 2
It has a voltage comparison circuit consisting of 5.
コンデンサ１５はロータリイエンコーダの出力に同期し
て所定時間の放電が行なわれる。このコンデンサ１４の
充電レベルは積分されてオペアンプ２３の基準電位とし
て入力される。The capacitor 15 is discharged for a predetermined time in synchronization with the output of the rotary encoder. The charge level of this capacitor 14 is integrated and input as a reference potential to the operational amplifier 23.
一方、ロータリイエンコーダに同期し°て、ＣＰＴＪ６
から’１’ＲＩＧ出力がトランジスタへ出力される。コ
ンデンサ２′５は瞬時放電された後、基準電位までの充
電時間がヘッド通電パルスとしてヘッドドライブエ０７
の給電トランジスタ８へ伝達される。ヘッドドライブエ
０はこの時間だけ動作可能となりサーマルヘッド１は速
度情報に応じた時間だけ印加エネルギが与えられること
になる。On the other hand, in synchronization with the rotary encoder, CPTJ6
'1' RIG output is output to the transistor. After the capacitor 2'5 is instantaneously discharged, the charging time to the reference potential is determined by the head drive device 07 as a head energizing pulse.
The signal is transmitted to the power supply transistor 8. The head drive E 0 is operable for this period of time, and the thermal head 1 is given energy for a period of time corresponding to the speed information.
第２図は本発明の動作原理を示す説明図である、５１．
５５はロータリイエンコーダ３の出力波形を、５２．５
６はワンシ１ット回路４の出力波形を、３３．３７はコ
ンデンサ１４の充放電波形を、５４．５８は積分回路の
出力波形を示している。４０はグランドレベルを示す。51. FIG. 2 is an explanatory diagram showing the operating principle of the present invention.
55 is the output waveform of the rotary encoder 3, 52.5
6 shows the output waveform of the one-shot circuit 4, 33.37 shows the charging/discharging waveform of the capacitor 14, and 54.58 shows the output waveform of the integrating circuit. 40 indicates the ground level.
更に、３１〜５４は手動走査スピードが遅い場合を、３
５〜３８は逆に速い場合を示している。Furthermore, 31 to 54 indicate cases where the manual scanning speed is slow.
On the contrary, numbers 5 to 38 indicate fast cases.
積分回路の出力は出力波形３４に示すように、スピード
が遅い時は高い基準レベルＶａ１２−な’）速い時は、
低−基準レベルＶｃ２となる。このため、比較回路の出
力パルス幅はスピードが遅い時は大きく、逆に速い時は
小さくなり、サーマルヘッドの蓄熱を補正する方向に働
く。As shown in the output waveform 34, the output of the integrating circuit is at a high reference level Va12- when the speed is slow, and when it is fast,
It becomes low-reference level Vc2. For this reason, the output pulse width of the comparator circuit is large when the speed is slow, and conversely becomes small when the speed is fast, working to correct heat accumulation in the thermal head.
尚、このハンディプリンタの印字制御回路は、熱、転写
方式、サーマル方式の双方に有効である。The print control circuit of this handy printer is effective for both heat, transfer, and thermal methods.
又、サーミスタ２２の働きによって周囲温度の変動に対
しても濃度補正することが可能となっている。Furthermore, the function of the thermistor 22 makes it possible to correct the concentration even for fluctuations in ambient temperature.
本発明によれば、走査スピードの変動による蓄熱を補正
するため手動による印刷の不具合を除去し、印字品質の
良好なサーマル方式のハンディプリンタを実現すること
ができる。According to the present invention, it is possible to eliminate defects caused by manual printing by correcting heat accumulation due to fluctuations in scanning speed, and to realize a thermal type handy printer with good print quality.
第１図は本発明によるハンディプリンタの印字制御装置
の一実施例の構成を示す略図。
第２図は本発明の動作原理を示す説明図。
１・・・・・・・・・サーマルヘッド
３・・・・・・・・・速度情報検出手段５・・・・・・
・・・通電幅制御手段
以上
出願人 セイコーエプソン株式会社
代理人 弁理士最上筋（他１名）
、 ＼
１ ：／’ｉ１ｒ
叉−１，。FIG. 1 is a schematic diagram showing the configuration of an embodiment of a print control device for a handy printer according to the present invention. FIG. 2 is an explanatory diagram showing the operating principle of the present invention. 1...Thermal head 3... Speed information detection means 5...
...Electrification width control means and above Applicant: Seiko Epson Co., Ltd. Representative Patent Attorney Mogamisuji (and 1 other person), \1:/'i1r 叉-1,.
Claims (1)
サーマルプリンタに於いて、手動走査時のスピードを検
出する速度情報検出手段と、該速度情報検出手段の検出
結果によって前記サーマルヘッドに配置された発熱要素
への印加エネルギ可変手動を有することを特徴とするハ
ンディプリンタの印字制御回路。 ２）前記印加エネルギ可変手段が通電幅制御手段である
特許請求の範囲第１項記載のハンディプリンタの印字制
御装置。[Claims] 1) In a thermal printer that prints image information on printing paper by manual scanning, a speed information detection means for detecting the speed during manual scanning, and a detection result of the speed information detection means A print control circuit for a handy printer, characterized in that it has a manual variable control circuit for applying energy to a heating element disposed in the thermal head. 2) The printing control device for a handy printer according to claim 1, wherein the applied energy variable means is an energization width control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3268087A JPS63199661A (en) | 1987-02-16 | 1987-02-16 | Printing controller in handy printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3268087A JPS63199661A (en) | 1987-02-16 | 1987-02-16 | Printing controller in handy printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63199661A true JPS63199661A (en) | 1988-08-18 |
Family
ID=12365582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3268087A Pending JPS63199661A (en) | 1987-02-16 | 1987-02-16 | Printing controller in handy printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63199661A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05155136A (en) * | 1991-12-05 | 1993-06-22 | Max Co Ltd | Transfer method and transfer device in instant lettering |
| EP2497644A1 (en) * | 2009-11-02 | 2012-09-12 | Seiko Epson Corporation | Thermal printer and method for controlling current passage therein |
-
1987
- 1987-02-16 JP JP3268087A patent/JPS63199661A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05155136A (en) * | 1991-12-05 | 1993-06-22 | Max Co Ltd | Transfer method and transfer device in instant lettering |
| EP2497644A1 (en) * | 2009-11-02 | 2012-09-12 | Seiko Epson Corporation | Thermal printer and method for controlling current passage therein |
| EP2497644A4 (en) * | 2009-11-02 | 2013-05-15 | Seiko Epson Corp | Thermal printer and method for controlling current passage therein |
| EP2823964A3 (en) * | 2009-11-02 | 2015-07-01 | Seiko Epson Corporation | Thermal printer and energizing control method therefor |
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