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Figure 1-5. To thread the ribbon, slide the print head carriage
manually to the right or left, and the ribbon will slip down by itself into
its proper position.
7. Replace the printer cover. (A switch on the printer
prevents the printer from operating when the cover is
off.)
9 Installing the interface board
A parallel interface board comes standard with your printer.
In addition, there are two optional interface (1/F)boards: a serial
interface board that lets you connect to a serial (RS-232C)com-
puter port; and the other board contains extra buffer memory
for parallel output. All three boards are installed the same way.
To install or change an I/F board, turn off the power and turn
the printer around. Notice the snap-on cover at the left end.
Take it off by sliding it upwards.
Fit the I/F board into the side slots and slide it all the way
down (don’t force it). Make sure that the board connector is
seated snugly in its socket. Put the cover back on and connect
the cable from your computer – you’re ready to go.