You could set up an Action module, based on a timer (TTL Pulse Generator) that is configured to pulse at the width of the Chart Recorder window (see the X-axis settings). The Action could then be directed to print the Chart Window when it detects the rising edge of the pulse.
Because Windows-based printers are mostly page oriented, DASYLab doesn't have a way to smoothly scroll a chart to a page continually, as a paper chart recorder with a roll of paper will do.
Measurement Computing (MCC) has free technical support. Visit
www.mccdaq.com and click on the "Support" tab for all support options, including DASYLab.