| 摘要 |
PCT No. PCT/FR96/00187 Sec. 371 Date Dec. 13, 1996 Sec. 102(e) Date Dec. 13, 1996 PCT Filed Feb. 5, 1996 PCT Pub. No. WO96/26502 PCT Pub. Date Aug. 29, 1996In a printing machine with a rotary drum (1) for franking envelopes (4), each print operation is performed at a constant rotational speed in a given direction, whereafter the direction of rotation of the drum (1) is reversed so that for the next print operation, the rotational speed of the drum (1) may be increased in said direction over a greater angle to achieve said constant speed.
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