| 摘要 |
A duplex printer for printing on opposite sides of a document includes a ribbon shifting mechanism for moving a printing ribbon between a first position, in which the ribbon extends between a print head and the document for printing on a front side of the document, and a second position, in which the ribbon extends between the document and a platen for printing on a reverse side of the document. In one version of the printer, the ribbon is shifted as a carriage used to move the print head within a printing range, within which printing occurs, is moved outside this printing range into a ribbon shifting range.
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