gistfile1.rb

require "cups"

# Create new print job. Specify local file path and printer/class
pj = PrintJob.new("/Users/chris/Documents/hash_server.rb", "EPSON_Stylus_Pro_4800")
pj.print

# New:
pj.cancel # => true if print has been called, otherwise false
pj.job_id # => @job_id || nil

# Returns an array of available printers
PrintJob.show_destinations # => ["EPSON_Stylus_Pro_4800", "PDF_Printer", "Epson_AL_M2000_PostScript_"]

# Returns default printer string, or false if none specified
p PrintJob.default_printer # => "default" || false