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Throat
The throat must be opened to insert the paper
and must be closed before the printer is ready.
The throat is controlled by the print unit re-
lease lever
B.
Pull the lever toward the front
of the machine to move the print unit forward
and open the throat; push the lever toward the
back of the machine to move the print unit
back into place and close the throat. When the
print unit is back in place, the print unit inter-
lock switch signals the attachment that the
throat is closed.
Paper Clamps
There are two paper clamps in the printer. The
upper paper clamp is used only to suppress the
noise of the paper. When the clamp solenoid is
energized, it closes the air gap where the paper
passes through to reduce the noise level at the
back of the printer. (Upper Paper Clamp Assem-
bly 4.2.43.)
The lower paper clamp is located just below the
print line to prevent horizontal skewing of the
paper. The print belt is turning continuously and
has a tendency to pull the paper along with it.
Because there are no feed rolls in the lower por-
tion of the printer, the lower paper clamp holds
the paper in position. (Lower Paper Clamp
4.2.44.)
Close
f
Open
Print Unit
Release Lever
4-10
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