| 摘要 |
Provided is a variable printer which enables a printing plate of a printing unit to be replaced in a short time during printing. Moreover, blanket rollers 12 of a plurality of printing units (4a-4d) can be moved to be in positions of printing, so as to be in rotatable contact with a printing plate roller (11) and a pressing roller (13), and also to be in withdrawl positions, between the pressing roller (13) and the blanket rollers (12), of running gaps for paper, so as to be separated from the printing plate roller (11) and the pressing roller (13), such that the blanket rollers (12) of the printing units, used for replacement of printing plates, can become the withdrawl positions, and the blanket rollers (12) of other printing units can become the printing positions. |
