发明名称 A thermal image-recording apparatus with a dancer roller for controlling the donor ribbon tension.
摘要 A thermal image-recording apparatus which comprises a print head (18), a rotatably mounted print drum (14), rotatably mounted supply (31) and take-up spools (32) for a dye-bearing ribbon (17), a first motor (40) for rotating said print drum and a second motor (41) for rotating said take-up spool, and control means for controlling the winding tension of the take-up spool, which comprises a dancer roller (34) at a position between the print head and the take-up spool, and a control circuit (26,45,46) for controlling said second motor (41) in response to the position taken by said dancer roller so that during printing the rotational speed of said second motor (41) is increased as said dancer roller (34) reaches its lowest position, and the rotational speed of said second motor is decreased as said dancer roller reaches its highest position. <IMAGE>
申请公布号 EP0602283(A1) 申请公布日期 1994.06.22
申请号 EP19920203893 申请日期 1992.12.14
申请人 AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP 发明人 TACK, HENRI, C/O AGFA-GEVAERT N.V.,
分类号 B41J2/325;B41J17/24;B41J17/30;B41J17/32;B41J25/304;(IPC1-7):B41J17/24 主分类号 B41J2/325
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