IBM 1620 1 Manual page 58

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the lever should be set at A for one to three
copies and moved back one position for each
additional three to five copies. Heavy print at
the top of characters shows that the platen is too
far back; heavy print at the bottom of characters
show5. that platen is· too far forward. The slash
symbol (/) is a good character to use in check-
ing multiple copy settings.
8. Left-Hand Margin Set. The left margin stop is
set as follows:
a. Return the carriage to the present left margin
stop.
b. Press and hold down the Nlargin Set key.
c. Move the carriage manually as near as pos-
sible to the position desired. With the Mar-
gin Set key pressed, use the Back Space key
and Space Bar to obtain the exact position
desired.
d. Release the Margin Set key.
9. Right-Hand Margin Set. The right margin stop is
set as follows:
a. Move the carriage to the left until stopped
by the right margin stop.
b. Press and hold down the NIargin Set key.
c. Move the carriage right or left to the de-
sired position.
d. Release the Margin Set key.