Printing a stored logo

[Chris-wg]

Epson TM printers allow storing a logo, which allows the receipt to print faster if they are on a slow connection such as serial. Even on USB, some older TM-T88III are very slow to print logos if they need to be sent to the printer.

The command to print a stored logo is

	$printer->getPrintConnector()->write("\x1Cp\x01\x00\x00");

Also I'd like to thank Mike for this amazing library!

[mike42]

Cheers, good suggestion.

In a very very old branch I attempted to implement "NV bit image" functions, but could not get acceptable output. I should re-visit this.