CN2384770Y - Thermal sensitive printing head - Google Patents
Thermal sensitive printing head Download PDFInfo
- Publication number
- CN2384770Y CN2384770Y CN 99221577 CN99221577U CN2384770Y CN 2384770 Y CN2384770 Y CN 2384770Y CN 99221577 CN99221577 CN 99221577 CN 99221577 U CN99221577 U CN 99221577U CN 2384770 Y CN2384770 Y CN 2384770Y
- Authority
- CN
- China
- Prior art keywords
- control integrated
- control
- printing head
- integrated circuits
- gating
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a thermal sensitive printing head which comprises a ceramic base board, a heat radiating plate, and a printed circuit board. The printed circuit board and the ceramic base board are provided with a gating wire, control integrated circuits, a heating element, etc. The gating wire is connected with the control integrated circuits, and the control integrated circuits are connected with the heating element. The utility model is characterized in that a plurality of the control integrated circuits connected to the same one gating wire are positioned at intervals. The utility model has the advantages of smaller volume, and uniform printing density. Therefore, the thermal sensitive printing head can be widely used for electrographs, etc.
Description
The utility model relates to a kind of printing equipment, is a kind of thermal printing head specifically.
At present, used thermal printing head, it comprises ceramic substrate, heat sink, printed substrate, printed substrate and ceramic substrate are provided with control integrated circuit, heater, are furnished with select lines on the printed substrate, and select lines links to each other with the control integrated circuit, the control integrated circuit links to each other with heater again, the adjacent several Control integrated circuit of gating control, when this gating was opened, the several Control integrated circuit of this gating control was worked simultaneously.This structure is when realizing the miniaturization of thermal printing head, when the common electrode wire that links to each other with VH line on the printed substrate will become 64bit or how shared one by 8bit, the circuit control of thermal printing head becomes a 64bit or how shared common electrode wire by shared one of 8bit, the electric current that flows through this common electrode increases 8 times or more, the common electrode caloric value increases 64 times or more, thereby causes the phenomenon of the thin out and lettering density unevenness one of lettering concentration.
The purpose of this utility model is exactly the deficiency that overcomes existing thermal printing head, provides that a kind of volume is less, the thermal printing head of lettering concentration homogeneous.
For achieving the above object, a kind of thermal printing head, it comprises ceramic substrate, heat sink, printed substrate, printed substrate and ceramic substrate are provided with select lines, control integrated circuit, heater etc., select lines links to each other with the control integrated circuit, the control integrated circuit links to each other with heater again, it is characterized in that a plurality of control integrated circuits position of linking to each other with same gating separately, and controls heater position that integrated circuits control also separately by these.
The heater position of sequential working is non-conterminous on the thermal printing head.
A plurality of control integrated circuits position that the utility model owing to adopt links to each other with same gating separately, and also separately by these heater positions of controlling of control integrated circuits, the heater position of sequential working is non-conterminous, thereby reduced the power consumption on the common electrode, improved the phenomenon of lettering density unevenness one, reduced the heat affecting between the adjacent control integrated circuit simultaneously, effectively improve the lettering conditions of streaking that accumulation of heat causes, thereby solved the problem of the lettering quality decline that in realizing thermal printing head miniaturization process, occurs.
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1,2,3 is the utility model gating control structure schematic diagram.
Point with the control of a control integrated circuit is under the lettering mode of unit, with reference to Fig. 1, gating 28 controls the 1st, 3,5,7,9,11,13 control integrated circuits, gating 29 controls the 15th, 17,19,21,23,25,27 control integrated circuits, gating 30 controls the 2nd, 4,6,8,10,12 control integrated circuits, gating 31 controls the 14th, 16,18,20,22,24,26 control integrated circuits, the heater of each control integrated circuit control 64bit, when gating 28 is opened, the 1st, 3,5,7,9,11, the point of 13 control integrated circuits control is lettering simultaneously, then, when gating 29 is opened, the 15th, 17,19,21,23,25, the point of 27 control integrated circuits control is lettering simultaneously, when gating 30 is opened, the 2nd, 4,6,8,10, the point of 12 control integrated circuits control is lettering simultaneously, when gating 31 is opened, and the 14th, 16,18,20,22,24, the point of 26 control integrated circuits control is lettering simultaneously.The control integrated circuit position of gating control of having realized sequential working like this is non-conterminous, and the lettering thereby the heater of having realized sequential working does not generate heat simultaneously is improved the bad phenomenon of image quality that causes because of the common electrode heating.With reference to Fig. 2, the the 2nd, 5,8,11,14,17,20,23,26 control of gating 28 controls integrated circuit, the the 3rd, 6,9,12,15,18,21,24,27 control of gating 29 controls integrated circuit, gating 30 controls the 1st, 4,7,10,13,16,19,22,25 control integrated circuits, each control integrated circuit control 64bit heater.With reference to Fig. 3, the the 1st, 4,7,13,16 control of gating 19 controls integrated circuit, the the 2nd, 5,8,11,14,17 control of gating 20 controls integrated circuit, the 3rd, 6,9,12,15,18 control of gating 21 controls integrated circuit, each control integrated circuit control 96bit heater.The utility model can be widely used on the equipment such as printer, facsimile machine, medicine equipment.
Claims (2)
1, a kind of thermal printing head, it comprises ceramic substrate, heat sink, printed substrate, printed substrate and ceramic substrate are provided with select lines, control integrated circuit, heater etc., select lines links to each other with the control integrated circuit, the control integrated circuit links to each other with heater again, it is characterized in that a plurality of control integrated circuits position of linking to each other with same gating separately, and the heater position of being controlled by these control integrated circuits also separately.
2, thermal printing head according to claim 1 is characterized in that the heater position of sequential working is non-conterminous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221577 CN2384770Y (en) | 1999-07-09 | 1999-07-09 | Thermal sensitive printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221577 CN2384770Y (en) | 1999-07-09 | 1999-07-09 | Thermal sensitive printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384770Y true CN2384770Y (en) | 2000-06-28 |
Family
ID=34012116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99221577 Expired - Fee Related CN2384770Y (en) | 1999-07-09 | 1999-07-09 | Thermal sensitive printing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384770Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279543B (en) * | 2007-04-05 | 2011-02-23 | 株式会社理光 | Heating unit, erasing device, and information erasing and recording apparatus |
-
1999
- 1999-07-09 CN CN 99221577 patent/CN2384770Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279543B (en) * | 2007-04-05 | 2011-02-23 | 株式会社理光 | Heating unit, erasing device, and information erasing and recording apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |