TENSION CONTROL IN A WEB TRANSPORT SYSTEM

摘要

A method for controlling tension in a print media (100) in a tension zone of a printing system (200) comprises enabling an active tension control mode (400) until the tension in the print media (100) is in a stable state for a given period of time (402). Then, the active tension control mode is disabled and a synchronized control mode is enabled (404). The tension in the print media (100) is monitored (406) to determine if the tension exceeds a tension inner band (504) but does not exceed a tension outer band (506) while the synchronized control mode is enabled. The speed of a drive roller is adjusted in response to this determination (414). The tension in the print media (100) is also monitored (410) to determine if the tension exceeds the tension outer band (56) while the synchronized control mode is enabled. The synchronized control mode is disabled in response to this determination and the active tension control mode is enabled (412).