JPH0323459U - - Google Patents
Info
- Publication number
- JPH0323459U JPH0323459U JP8283789U JP8283789U JPH0323459U JP H0323459 U JPH0323459 U JP H0323459U JP 8283789 U JP8283789 U JP 8283789U JP 8283789 U JP8283789 U JP 8283789U JP H0323459 U JPH0323459 U JP H0323459U
- Authority
- JP
- Japan
- Prior art keywords
- light
- sensor
- ink ribbon
- ink
- comparator
- 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
- 238000004804 winding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
Description
第１図は本考案の一実施例のプリンタの印字部
の印字動作時の平面図、第２図は同印字部のイン
クリボン巻き取り時の平面図、第３図はキヤリツ
ジの背面図、第４図はセンサおよびインク層消耗
状態検出方法の説明図、第５図は光センサの説明
図、第６図はインク層消耗状態と光透過率との関
係の説明図、第７図は光透過率とセンサ出力電流
値との関係の説明図、第８図は光センサの他の実
施の説明図である。
３……キヤリツジ、４……巻き取り側ハブ、６
……インクリボン、８……駆動軸、９……光セン
サ、９ａ……発光素子、９ｂ……受光素子、１０
……コンパレータ、１１，１２，１３……ギヤ、
１４……モータ。
Fig. 1 is a plan view of the printing section of a printer according to an embodiment of the present invention during printing operation, Fig. 2 is a plan view of the printing section when the ink ribbon is being wound up, and Fig. 3 is a rear view of the carriage. Figure 4 is an explanatory diagram of the sensor and ink layer depletion state detection method, Figure 5 is an explanatory diagram of the optical sensor, Figure 6 is an explanatory diagram of the relationship between the ink layer depletion state and light transmittance, and Figure 7 is an explanatory diagram of the relationship between the ink layer depletion state and light transmittance. FIG. 8 is an explanatory diagram of the relationship between the ratio and the sensor output current value, and FIG. 8 is an explanatory diagram of another implementation of the optical sensor. 3... Carriage, 4... Winding side hub, 6
... Ink ribbon, 8 ... Drive shaft, 9 ... Light sensor, 9a ... Light emitting element, 9b ... Light receiving element, 10
... Comparator, 11, 12, 13 ... Gear,
14...Motor.
Claims (1)
配置された、インク層の消耗状態を検出するセン
サと、このセンサにより検出したインク層の消耗
が一定以上の時に、印字ヘツド送りを停止させた
状態でインクリボンを巻き取るリボン巻き取り手
段とを備えたことを特徴とするプリンタ。 (2) 前記センサはインクリボンの幅方向に多数
の受光素子を配列した構成であり、各受光素子の
出力の平均レベルと設定した限界電流値とを比較
するコンパレータを設けたことを特徴とする請求
項１記載のプリンタ。 (3) 前記センサはインクリボンの幅方向に多数
の受光素子を配列した構成であり、各受光素子の
出力レベルのなかの最大の出力レベルと設定した
限界電流値とを比較するコンパレータを設けたこ
とを特徴とする請求項１記載のプリンタ。[Scope of Claim for Utility Model Registration] (1) A sensor arranged in front of the print head in the ink ribbon path to detect the state of ink layer consumption, and when the ink layer consumption detected by this sensor exceeds a certain level, 1. A printer comprising: a ribbon winding means for winding up an ink ribbon while printing head feeding is stopped. (2) The sensor has a configuration in which a large number of light-receiving elements are arranged in the width direction of the ink ribbon, and is characterized in that it is provided with a comparator that compares the average level of the output of each light-receiving element with a set limit current value. The printer according to claim 1. (3) The sensor has a configuration in which a large number of light-receiving elements are arranged in the width direction of the ink ribbon, and a comparator is provided to compare the maximum output level among the output levels of each light-receiving element with a set limit current value. The printer according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283789U JPH0323459U (en) | 1989-07-14 | 1989-07-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283789U JPH0323459U (en) | 1989-07-14 | 1989-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0323459U true JPH0323459U (en) | 1991-03-12 |
Family
ID=31629998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8283789U Pending JPH0323459U (en) | 1989-07-14 | 1989-07-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0323459U (en) |
-
1989
- 1989-07-14 JP JP8283789U patent/JPH0323459U/ja active Pending
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