Usage:
copy [printer printer ] [ file file ] [ format ]

The copy command sends the image contents of the graphics window to a printer or file.

If the printer keyword is given, PostScript is sent to printer. If the file keyword is given, the description is saved in file. The file type is PostScript unless format is otherwise specified as tiff, png, or jpeg. If no keyword is given, the information is sent to the default system printer. The resolution of the resulting image is the same as the resolution of the screen.