The DIP Switches Several tiny switches called DIP (for Dual In-Line Package) switches are in the back of your MPS 1000 printer. They control a number of important printer functions. For most uses they can be left as they were set at the factory, but you may want to change some settings. The design of the MPS 1000 gives you easy access to the switches. You can see them in the back of the printer as indicated in Figure 1-23. SW1 SW2 |||||||| |||| 12345678 1234 Figure 1-23. DIP switch location Always turn the power OFF (with the switch on the right side of the printer) before you change the setting of any of these switches. Any changes made while the power is on will be ignored until you turn the printer off and back on. So set all switches with the power off. In Table 1-1, 1-2 and 1-3 we show you the functions of all the switches in each mode. DIP switch 1-1 controls the mode of the MPS 1000. If switch 1-1 is OFF, that is, when the printer is in its Commodore mode, the fol- lowing Table 1-1 applies: Table 1-1. DIP switch functions (Commodore mode) SW1 Function ON OFF Factory Setting 1-1 Print Mode Selection IBM Commodore OFF 1-2 Device Select 5 4 OFF 1-3 Uni Directional Printing Valid Invalid OFF 1-4 Controls Cut Sheet Feeder Valid Invalid OFF 1-5 NLQ/DRAFT Selection NLQ DRAFT OFF 1-6 International Character Set OFF 1-7 International Character Set See Table 1-2 OFF 1-8 International Character Set OFF SW2 Function ON OFF Factory Setting 2-1 Page Length 12" 11" OFF 2-2 - - - OFF 2-3 Paper End Detector Inactive Active OFF 2-4 Buzzer Mute Beep NOTE: Printer is set for Commodore mode at the factory. Dip switches are read at power-on reset. Switches 1-6, 1-7 and 1-8 determines the active international character set as shown in Table 1-2. Table 1-2. International DIP switch settings Countries Switch 1-6 Switch 1-7 Switch 1-8 ASCII (USA/UK/Netherlands) OFF OFF OFF Denmark/Norway OFF OFF ON Sweden/Finland OFF ON OFF Germany OFF ON ON France/Belgium ON OFF OFF Italy ON OFF ON Switzerland ON ON OFF Spain ON ON ON The use of national character set is discussed in Appendix A. If DIP Switch 1-1 is ON, the MPS 1000 series is in its IBM mode. Table 1-3 applies to IBM mode. Table 1-3. DIP switch functions (IBM mode). SW1 Function ON OFF Factory Setting 1-1 Print Mode Selection 5152+ Commodore OFF 1-2 Device Select 5 4 OFF 1-3 Auto LF with CR Valid Invalid OFF 1-4 Controls Cut Sheet Feeder Valid Invalid OFF 1-5 NLQ/DRAFT Selection NLQ DRAFT OFF 1-6 Character Graphic Select CG2 CG1 OFF 1-7 IBM PC Basic ROM Version Group II-1 Group I OFF 1-8 Interface Serial Parallel OFF SW2 Function ON OFF Factory Setting 2-1 Page Length 12" 11" OFF 2-2 - - - OFF 2-3 Paper End Detector Inactive Active OFF 2-4 Buzzer Mute Beep OFF *With DIP Switch 1-1 set to ON (IBM mode) and DIP Switch 2-4 set to OFF (Centronics Parallel interface), DIP switch 1-2 is non function defined. DIP Switch 1-7 determines the version of the IBM PC Basic ROM. If this DIP Switch is set to OFF, Group I is selected. Otherwise Group II-1 version is selected. The Group I version covers the following countries: USA, Astria, Belgium, Ireland, Finland, France, Greece, Italy, Luxembourg, Netherlands, Saudi Arabia, South Africa, Spain, Sweden, Switzerland, Turkey, United Kingdom, West Germany. The Group II-1 covers Denmark/Norway. DIP switches are read at power on reset." I think it's a good idea to read about printer maintenance as well, since your printer is getting kind of old: "Printer Maintenance Always Always keep your MPS 1000 printer in a safe and clean location. Keep it away from: Dust and grease Heaters and furnaces. Safe temperature range is 41 F (5C) to 95F (35C) Now and Then Clean particles and dust from the printer every so often with a soft cloth or brush. Use a mild cleanser for the outside framework. After removing the ribbon cassette, use denatured alcohol for the inside. See your Commodore dealer for replacement ribbon cassettes. Rarely Once in a great while your printer should be lubricated. Commodore recommends two lubricants: O-2 (Epson Part No. B7102000001) and G- 2 (Epson Part No. B70020001). Every 6 months or 1 million lines, use O-2 lubricant on the shafts and platen bearings, wiping off excess with cloth. Use G-2 sparingly on ribbon feed, line feed and carriage return drive gears every 5 million lines. Note: Using too much lubricant can cause problems with your printer. Apply the lubricant sparingly." One may wonder how you should be able to count home many lines it has actually printed. :-) I hope this will do it. I don't have the time to write down the whole manual, but if you got any questions I'll be happy to answer them. / Lars Forsberg