JPS6233461U - - Google Patents
Info
- Publication number
- JPS6233461U JPS6233461U JP12516785U JP12516785U JPS6233461U JP S6233461 U JPS6233461 U JP S6233461U JP 12516785 U JP12516785 U JP 12516785U JP 12516785 U JP12516785 U JP 12516785U JP S6233461 U JPS6233461 U JP S6233461U
- Authority
- JP
- Japan
- Prior art keywords
- printing paper
- reference voltage
- absence
- comparison circuit
- printing
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Controlling Sheets Or Webs (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Description
第１図は本考案の印字用紙有無検出装置の第１
の実施例を示す回路図、第２図は本考案を用いた
印字装置の全体の構成を示す図、第３図ａ，ｂは
比較基準電圧Ｖｓｎと論理レベル信号の関係を示
す図、第４図は圧力形センサ２の出力Ａ及び検出
回路部５の出力Ｂの電圧波形図、第５図は本考案
の第２の実施例を示す回路図、第６図は従来の印
字装置の全体の構成を示す構成図、第７図は第６
図の検出回路部の内部回路を示す図、第８図は従
来の圧力形センサ２の出力Ａ及び検出回路部１０
の出力Ｂの電圧波形図である。
１……印字ヘツド部、２……圧力形センサ、３
……印字用紙、４……プラテン、５，１０……検
出回路部、６……コンパレータ、８……コントロ
ール部、９……反射形センサ。
Figure 1 shows the first part of the printing paper presence/absence detection device of the present invention.
FIG. 2 is a diagram showing the overall configuration of a printing device using the present invention. FIGS. 3 a and b are diagrams showing the relationship between comparison reference voltage Vsn and logic level signals. The figure is a voltage waveform diagram of the output A of the pressure type sensor 2 and the output B of the detection circuit section 5, FIG. 5 is a circuit diagram showing the second embodiment of the present invention, and FIG. 6 is a diagram of the entire conventional printing device. A configuration diagram showing the configuration, Figure 7 is the 6th
FIG. 8 shows the output A of the conventional pressure type sensor 2 and the detection circuit section 10.
FIG. 2 is a voltage waveform diagram of output B of FIG. 1...Print head section, 2...Pressure type sensor, 3
...Print paper, 4...Platen, 5, 10...Detection circuit section, 6...Comparator, 8...Control section, 9...Reflection type sensor.
Claims (1)
検知素子と、該検知素子の出力電圧と基準電圧を
比較する比較回路とを有し、 前記比較回路の出力に基づき印字用紙の有無を
検出する印字用紙有無検出装置において、 前記基準電圧を調節可能に設定する手段と、 前記印字用紙検知素子の出力電圧に基づいて、
前記基準電圧を調節して前記比較回路に基準電圧
として供給する手段とを具備することを特徴とす
る印字用紙有無検出装置。[Claims for Utility Model Registration] A printer comprising a printing paper detection element provided in the printing head of a printing device, and a comparison circuit that compares the output voltage of the detection element with a reference voltage, based on the output of the comparison circuit. A printing paper presence/absence detection device for detecting the presence or absence of printing paper, comprising: means for adjustablely setting the reference voltage; and based on the output voltage of the printing paper detection element.
A printing paper presence/absence detecting device comprising means for adjusting the reference voltage and supplying it to the comparison circuit as a reference voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12516785U JPS6233461U (en) | 1985-08-16 | 1985-08-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12516785U JPS6233461U (en) | 1985-08-16 | 1985-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6233461U true JPS6233461U (en) | 1987-02-27 |
Family
ID=31017836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12516785U Pending JPS6233461U (en) | 1985-08-16 | 1985-08-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6233461U (en) |
-
1985
- 1985-08-16 JP JP12516785U patent/JPS6233461U/ja active Pending