Paper transport device for thermal printer

摘要

In a thermal printer having a stationary thermal head and a platen movable between a pressing position on the thermal head and a retracted position off the thermal head, a paper transport device is provided with a platen shift device for shifting the platen between the retracted position and the pressing position, a feed roller device for transporting the recording paper to the thermal head along a transport path, and a guide member disposed between the feed roller device and the thermal head. The guide member is movable in cooperation with the platen shift device, such that when the platen shift device shifts the platen to the retracted position the guide member moves to a guide position in the transport path and guides the recording paper to remove slantwise from the thermal head while passing through between the thermal head and the platen. When the platen shift device shifts the platen to the pressing position the guide member moves to an ineffective position off the transport path.