| 摘要 |
A printer (10) including a single motor (16) which provides rotary motion to a feed drum (28) having an outer surface which frictionally engages and pulls a web (12) material from a roll (56) rotatably mounted on a supply shaft (62). First and second pendulum systems, (34, 46), each including two pendulums independently mounted to the frame, pivotally mount a take-up shaft (30) and a tension roller (65) to tension the web as it comes off the feed drum and the roll, respectively. A print head carriage assembly (58) is moveable along a pivot beam (74) which extends orthogonally across the linear path from a first end position to a second end position. The single motor (16) is coupled to the print head carriage assembly (58) for reciprocally pushing and pulling the print head carriage assembly (58) between first and second end positions.
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