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公开(公告)号：EP0144233A3
公开(公告)日：1988-01-07
申请号：EP84308385
申请日：1984-12-03
发明人： Takanashi, Itsuo , Tanaka, Hideshi , Ohara, Terumi , Kato, Shigeru , Takahashi, Toshinori , Kiuchi, Tsutomu , Kitamura, Hiroki
摘要： A method and apparatus for performing a thermal transfer recording, uses an ink ribbon (14) having a plurality of ink parts (21a, b, c) which are coated with ink of different colors. The ink parts are successively arranged in a longitudinal direction of the ink ribbon. First, when performing a recording with a first ink, an information is recorded on a recording paper (12) by use of the first color ink, and at the same time, synchronization marks (42) are also recorded by use of the first color ink. Next, when performing a recording with a second color ink, the information is recorded on the recording paper which is pre-recorded with the first color ink, by use of a second color ink, in synchronism with the synchronization marks which are detected.
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公开(公告)号：EP0142964A3
公开(公告)日：1986-06-18
申请号：EP84307737
申请日：1984-11-09
发明人： Takanashi, Itsuo , Tanaka, Hideshi , Ohara, Terumi , Takahashi, Toshinori , Kato, Shigeru , Kiuchi, Tsutomu , Kitamura, Hiroki
IPC分类号： B41J03/20
CPC分类号： H04N1/40031 , B41J2/355
摘要： A plurality of heat generating resistors (11a, 11b) arranged in line in a thermal head are driven such that two consecutive heat generating resistors (11a, 11b) are combined to cover a single picture element whose desired density is represented by each datum. A head drive circuit is provided so that only a first heat generating resistor (11a) is energized when the desired density is below a predetermined value, and that both the first and second heat generating resistors (11a, 11b) are energized when the desired density is equal to or above the predetermined value. The energizing duration of the second heat generating resistor (11 b) is set to be within the energizing duration of the first heat generating resistor (11a) to reduce printing time, and the end of the energizing duration of the second heat generating resistor (11b) corresponds to the end of energizing duration of the first heat generating resistor (11 a) so as to ensure linearity in tone value.
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公开(公告)号：EP0144233B1
公开(公告)日：1990-05-02
申请号：EP84308385.8
申请日：1984-12-03
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公开(公告)号：EP0142964B1
公开(公告)日：1989-07-26
申请号：EP84307737.1
申请日：1984-11-09
发明人： Takanashi, Itsuo , Tanaka, Hideshi , Ohara, Terumi , Takahashi, Toshinori , Kato, Shigeru , Kiuchi, Tsutomu , Kitamura, Hiroki
IPC分类号： B41J3/20
CPC分类号： H04N1/40031 , B41J2/355
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公开(公告)号：EP0144233A2
公开(公告)日：1985-06-12
申请号：EP84308385.8
申请日：1984-12-03
发明人： Takanashi, Itsuo , Tanaka, Hideshi , Ohara, Terumi , Kato, Shigeru , Takahashi, Toshinori , Kiuchi, Tsutomu , Kitamura, Hiroki
摘要： A method and apparatus for performing a thermal transfer recording, uses an ink ribbon (14) having a plurality of ink parts (21a, b, c) which are coated with ink of different colors. The ink parts are successively arranged in a longitudinal direction of the ink ribbon. First, when performing a recording with a first ink, an information is recorded on a recording paper (12) by use of the first color ink, and at the same time, synchronization marks (42) are also recorded by use of the first color ink. Next, when performing a recording with a second color ink, the information is recorded on the recording paper which is pre-recorded with the first color ink, by use of a second color ink, in synchronism with the synchronization marks which are detected.
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公开(公告)号：EP0142964A2
公开(公告)日：1985-05-29
申请号：EP84307737.1
申请日：1984-11-09
发明人： Takanashi, Itsuo , Tanaka, Hideshi , Ohara, Terumi , Takahashi, Toshinori , Kato, Shigeru , Kiuchi, Tsutomu , Kitamura, Hiroki
IPC分类号： B41J3/20
CPC分类号： H04N1/40031 , B41J2/355
摘要： A plurality of heat generating resistors (11a, 11b) arranged in line in a thermal head are driven such that two consecutive heat generating resistors (11a, 11b) are combined to cover a single picture element whose desired density is represented by each datum. A head drive circuit is provided so that only a first heat generating resistor (11a) is energized when the desired density is below a predetermined value, and that both the first and second heat generating resistors (11a, 11b) are energized when the desired density is equal to or above the predetermined value. The energizing duration of the second heat generating resistor (11 b) is set to be within the energizing duration of the first heat generating resistor (11a) to reduce printing time, and the end of the energizing duration of the second heat generating resistor (11b) corresponds to the end of energizing duration of the first heat generating resistor (11 a) so as to ensure linearity in tone value.
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