| 摘要 |
A printer, that includes multiple printing groups, is mounted in the frame of an offset printing machine. Each printing group includes at least one printing cylinder, at least one transfer cylinder and at least one inking system. Two of these printing groups are arranged opposite to each other. At least one counter-pressure cylinder is arranged between these opposite printing groups. The frame has at least three separable frame modules. At least one printing group is located in a left module. At least one printing group is located in a right module. At least one counter-pressure cylinder is located in a module frame module situated between the left and right frame modules.
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