The copy command sends a description of the contents of the graphics window to a printer or a disk 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 format of file is PostScript unless the tiff keyword is used to specify TIFF format. If no keyword is given, the copy is sent to the default system printer.
Currently, copy is equivalent to a screen-save of the region within the main graphics window; thus, other windows and tools should be moved so they do not overlap with the graphics window, and the resolution of the resulting image is the same as the resolution of the screen.