the right side and twist until the flat sides of rod and fitting match. Push the knob straight in with a steady pressure. To remove, pull straight out.

Figure 1-7. Manual-feed knob

DIP switches

Several tiny switches, called DIP (for Dual In-line Package) switches, are located inside the FX. They control a number of important printer functions, such as line-feed adjustment, the paper-out sen- sor, the beeper, and the default print modes. You can check these switches now, or you can skip to the ribbon section and check the switches later.

The design of the FX printer allows easy access to the internal switches. They are located under the upper-right vent. To remove the vent, you need a Phillip’s-head screwdriver. Once the top screw is removed, take the vent off by pressing down and sideways with the palm of your hand (Figure 1-8).

Do not replace the screw because in the course of this manual, we will sometimes suggest that you reset switches. Keep the screw in a safe spot so that you can replace it later.

Locate the two DIP switch assemblies as shown in Figure 1-9and check that they are set as shown in Figure 1-10.

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