Brother International HL 1240 Service Manual - Page 255

CHAPTER 2 OPTIONS How to use the SERIAL INTERFACE (RS-100M) Connection (For HL-1250 Only) To connect the printer to a DOS computer with a serial interface or to an Apple Macintosh computer with a serial interface, you need to install the optional serial interface board (RS-100M). When you have installed the serial interface board, you can share the printer between two computers (two IBM compatible PCs or one IBM compatible PC and one Apple Macintosh) using the parallel and serial interfaces at the same time. Automatic interface selection between the two connections is a standard feature. ✒ Note • The serial interface board for this printer is an option, but in some countries the serial interface board may have been installed by either the factory or dealer. • The serial interface for Apple Macintosh (RS-422A) will only print at 300 dpi. The serial interface board is installed onto the main controller board inside the printer. For installation details, see the instruction guide which is provided with the serial interface board. 2-3