HP 7475a Operation And Interconnection Manual page 36

UfO
5.
PEN
B/A3 A/A4
6.
• •
7.
SIZE
Cl
2·18
PLQITER OPERATION
Pressing the
PEN UID
-
reverses the current pen state (up or down).
can be used in conjunction with the cursor
pushbuttons to draw lines or to digitize a
point. When the
PEN UfO
during program execution, it is equivalent to
executing an HP-GL PU or PD instruction.
These two lights indicate the
BtA3, AlA'
-
currently selected paper size. When the rear­
panel switch is set to
US/MET
A or B paper size, but when the switch is set
to (metric), they indicate A4 or A3 paper
MET
size.
NOTE:
Since one of the two paper·size lights
is always on, these lights also serve as power­
on indicators. Also note that the current paper­
size light will blink whenever the plotter receives
the HP·GL instruction, DP. This indicates a
point can he digitized using the
. •
push button
Pressing the
SIZE
-
taneously with the
ENTER
the alternate paper size. The following actions
occur each time a new paper size is selected:
a. The size status indicated by the
lights is reversed.
AiA4
b. The plotter assumes a new piece of paper
is loaded and the pen holder lifts and moves
to the extreme right.
c. The equivalent of executing an Hp·GL DF
instruction establishes default conditions.
d. PI and P2 are set to their default coordi·
nate locations.
e. The input window is set to the new hard-clip
limits.
NOTE:
The state of the rotate function is not
. •
affected
pushbutton
PEN UIO
push button is pressed
us,
they indicate
ENTER
pushbutton simul­
SIZE
push button selects
and
BtA3
It