JPS6467369A - Thermal head control method - Google Patents
Thermal head control methodInfo
- Publication number
- JPS6467369A JPS6467369A JP22305087A JP22305087A JPS6467369A JP S6467369 A JPS6467369 A JP S6467369A JP 22305087 A JP22305087 A JP 22305087A JP 22305087 A JP22305087 A JP 22305087A JP S6467369 A JPS6467369 A JP S6467369A
- Authority
- JP
- Japan
- Prior art keywords
- head
- printing
- paper
- base
- contact
- 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
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
- B41J2/36—Print density control
Landscapes
- Common Mechanisms (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To enable printing with uniform density through using a simple construction, by supplying a printing signal to a thermal head, reciprocally moving the head in a scanning manner on a thermal recording paper, thereby performing desired printing on the paper, and bringing the head and the paper out of contact with each other upon the completion of printing. CONSTITUTION:A guide member 13 is provided with four notched parts 14a-14d. When a base 10 is driven in an auxiliary scanning direction, two rollers come out off the notched parts 14b, 14d, and roll along a side face 13a of the member 13, whereby the base 10 and a thermal head 9 are turned, and printing can be performed. At the time when printing in one line is finished and the rollers 12 are fitted into the notched parts 14a, 14c, the base 10 and the head 9 are turned as above, whereby the head 9 and a thermal recording paper 6 are brought out of contact with each other. Therefore, the ununiformity in density at a printing finishing part can be reduced, and the head 9 can be returned to a home position while making contact with the paper 6 after heat is dissipated from the head 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22305087A JPS6467369A (en) | 1987-09-08 | 1987-09-08 | Thermal head control method |
| US07/241,449 US4912484A (en) | 1987-09-08 | 1988-09-08 | Method of controlling thermal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22305087A JPS6467369A (en) | 1987-09-08 | 1987-09-08 | Thermal head control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6467369A true JPS6467369A (en) | 1989-03-14 |
Family
ID=16792051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22305087A Pending JPS6467369A (en) | 1987-09-08 | 1987-09-08 | Thermal head control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6467369A (en) |
-
1987
- 1987-09-08 JP JP22305087A patent/JPS6467369A/en active Pending
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