Leaves HyperCard, opens the specified document, and prints it using current printing specifications. Use a full pathname, or let HyperCard follow the search order you've set in the "Look for Stacks In" card in the Home stack. You can also run an application or document named in a field.
Print "Memo to Ted" with MacWrite
Print field "Weekly report" with field 3
-- (the name of the application it uses is in field 3)