JPH01158146U - - Google Patents
Info
- Publication number
- JPH01158146U JPH01158146U JP5616288U JP5616288U JPH01158146U JP H01158146 U JPH01158146 U JP H01158146U JP 5616288 U JP5616288 U JP 5616288U JP 5616288 U JP5616288 U JP 5616288U JP H01158146 U JPH01158146 U JP H01158146U
- Authority
- JP
- Japan
- Prior art keywords
- supply line
- power supply
- mounting unit
- mounting
- light emitting
- 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 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
- Handling Of Cut Paper (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Description
第１図は本実施例の装着状態検知回路を含むプ
リンタ装置の回路図、第２図は本実施例のプリン
タ装置の動作原理図、第３図は本実施例の装着状
態検知装置の動作を説明するフローチヤート、第
４図ａ〜ｃは本実施例の装着状態検知装置の動作
を説明するタイムチヤートである。
１……コントローラ、２……フオトセンサドラ
イブ回路、３……入力バツフア、４ａ〜４ｄ，５
ａ〜５ｄ，６ａ〜６ｄ，７ａ〜７ｄ……フオトセ
ンサ、８……ＣＰＵ、９……出力ポート、１０…
…入力ポート、１１ａ……抵抗アレイ、１１ｂ…
…マルチプレクサ、１２……基準電圧発生器、１
３……コンパレータ、Ｓ１〜Ｓ４……スイツチ、
Ｒ１〜Ｒ２０……抵抗。
FIG. 1 is a circuit diagram of a printer device including the mounting state detection circuit of this embodiment, FIG. 2 is a diagram of the operating principle of the printer device of this embodiment, and FIG. 3 is a diagram illustrating the operation of the mounting state detection device of this embodiment. The flowchart to be explained and FIGS. 4a to 4c are time charts to explain the operation of the wearing state detection device of this embodiment. 1... Controller, 2... Photo sensor drive circuit, 3... Input buffer, 4a to 4d, 5
a-5d, 6a-6d, 7a-7d...Photo sensor, 8...CPU, 9...Output port, 10...
...Input port, 11a...Resistor array, 11b...
...Multiplexer, 12...Reference voltage generator, 1
3...Comparator, S1 to S4 ...Switch,
R1 to R20 ...Resistance.
Claims (1)
オード点灯回路を有する装着ユニツトと、前記装
置本体に設けられ前記装着ユニツト内の発光ダイ
オードに駆動用電源を供給する電源供給線と、該
電源供給線へ電源を供給しない期間前記電源供給
線の電位レベルを検知することにより前記装着ユ
ニツトの装着本体に対する装着、非装着を判定す
る判定回路とを備えたことを特徴とする装着ユニ
ツトの装着状態検知回路。 A mounting unit that is configured to be detachably attached to the device main body and has a light emitting diode lighting circuit therein, a power supply line provided in the device main body and supplying driving power to the light emitting diodes in the mounting unit, and a power supply line connected to the power supply line. A mounting state detection circuit for a mounting unit, comprising: a determination circuit that determines whether the mounting unit is mounted on the mounting body or not by detecting the potential level of the power supply line during a period when power is not supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5616288U JPH01158146U (en) | 1988-04-26 | 1988-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5616288U JPH01158146U (en) | 1988-04-26 | 1988-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01158146U true JPH01158146U (en) | 1989-11-01 |
Family
ID=31282044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5616288U Pending JPH01158146U (en) | 1988-04-26 | 1988-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01158146U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5279831A (en) * | 1975-12-26 | 1977-07-05 | Toshiba Corp | Device for supervision in shift recording medium |
| JPS60159615A (en) * | 1984-01-17 | 1985-08-21 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | Device for detecting the position of the interface between different fluids in a tank or container |
-
1988
- 1988-04-26 JP JP5616288U patent/JPH01158146U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5279831A (en) * | 1975-12-26 | 1977-07-05 | Toshiba Corp | Device for supervision in shift recording medium |
| JPS60159615A (en) * | 1984-01-17 | 1985-08-21 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | Device for detecting the position of the interface between different fluids in a tank or container |
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