Title:
【発明の名称】サーマルプロッタにおける作図ヘッドの制御方法
Document Type and Number:
Japanese Patent JP2881180
Kind Code:
B2
Abstract:
A control method prevents overheating of a line print head, the line print head for printing 4800 print dots per print line in response to print data. The print data is initially divided into sixteen blocks of print data denoting successive segments of the print line. The sixteen blocks of print data are then grouped into two groups and two-strobe printing is effected for one line. The temperature of the print head is detected and compared with a threshold temperature. If the temperature of the line print head exceeds the threshold temperature, subsequent print lines are carried out according to a four-strobe system, that is, the sixteen blocks of print data are divided into four groups. If the temperature of the line print head continues to exceed the threshold temperature, the printing is carried out according to an eight-strobe system, and so on. As such, by reducing the number of blocks of print data simultaneously printed, the printing operation is slowed, thus reducing overheating of the line print head.
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| JPH02175162 | DRIVER FOR THERMAL HEAD |
| JPH03146363 | PRINTING METHOD |
Inventors:
TATEZAWA HAJIME
Application Number:
JP8086789A
Publication Date:
April 12, 1999
Filing Date:
March 31, 1989
Export Citation:
Assignee:
MUTO KOGYO KK
International Classes:
B41J2/365; B41J2/375; G01D15/10; G06F3/13; B41J2/355; G06K15/22; (IPC1-7): B41J2/355; B41J2/365; B41J2/375; G06F3/13
Domestic Patent References:
| JP59214669A | ||||
| JP6015175A |
Attorney, Agent or Firm:
Nishijima Ayao