Gemini Industries Printer user manual Sneak Preview Inside Gemini

Introduction

DIP switches

Connector for parallel Interface

“Port hole” for serial Interface (optlonal)

Grbund terminal -3%

Figure 1-2. The connectors and DIP switches are located on the back of the Gemini printers.

A SNEAK PREVIEW INSIDE GEMINI

By referring to Figure 1-3 we can examine more closely the parts that make your Gemini printer work.

If you are just getting started, you should refer to Appendix G for instructions on unpacking and assembly, then to Chapter 2 for information on loading the ribbon and setting the print head’s gap. After you’ve cleared those hurdles (which you’ll do soon enough), this is what your printer will look like.

Inside the front of the machine are two ribbon spoo/s. Gemini uses standard typewriter ribbons, saving you money you might have had to spend for special-purpose ribbon cartridges. When the ribbon has run completely from one spool onto the other, the Gemini automatically reverses the ribbon direction. When the ribbon starts wearing (and the print copy lightens), simply take the ribbon off, turn it upside down, and print on the other edge.

The cylindrical print head (observable behind and above the ribbon spools) is the ingenious device that can print 120 characters per second (CPS)onto a variety of papers. What’s more, the print head is engineered to work consistently for an average of 100

million characters without fail (expressed as 10 x 10’ Mean

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