Print Mechanism; Platen/Pin Feed - IBM 3270 Operator's Manual

78
Printer Operation
Print Mechanism
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Door
Shiel
Figure 34. Printer Operating Controls
Platen/Pin Feed
When you look through the transparent top cover, you will
notice that the mechanism resembles a typewriter but without a
keyboard attached. To see the parts more clearly, raise the top
cover by placing your finger tips under the recessed front edge of
the cover and lifting upward. With the cover raised you'll see all
the parts and controls shown in Figure 34.
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Line-Feed
Select Lever
Pin-Feed
Door
Ribbon
Cartridge
Print-Position
Indicator
The paper folds around the platen as in a typewriter; however,
unlike a typewriter, the paper is held by pins extending from
each end of the platen. The pins pass through holes near the left
and right edges of the paper. The pin-feed doors close over the
edges of the paper (to keep the pins properly engaged in the
paper and to keep the paper firmly against the platen).