5-9
■ The plotted line is a mixed color
Possible cause Solution
Does your program data cause the plotted lines to Rewrite your program to provide more time before
be intersected by other lines before they are new lines intersect previously plotted lines.
completely dry?
Is there residual ink on the pen cap at the pen Use a cotton swab moistened with ethyl alcohol to
stations? clean the pen caps. Try to always use the same pen
color at the same Pen No. position.
■ Lines are not completely plotted or the ink doesn't adhere to a certain area
of the paper
Possible cause Solution
Is there dirt or dust on the surface of the writing Clean off any foreign matter. Foreign matter on the
panel? writing panel will cause the pen to skip over or tear
the paper.
Has the paper's surface become oily? Even oil from your hands may cause the paper to re-
ject the ink (especially with polyester film). Place the
paper on the writing panel by holding the edges with
clean hands, then smooth out any wrinkles or slack
in the paper using a clean cloth.
■ The ink stops flowing when plotting an overlapping pattern
Possible cause Solution
Does your program data cause a hatching pattern If lines are plotted over previously plotted lines that
to be plotted with the lines too close together? are not completely dry, the pen's tip gets snagged by
the fibers in the paper and is incapable of plotting.
Rewrite your program to provide sufficient space be-
tween the hatched lines.
■ The ink drips
Possible cause Solution
Are the rubber inserts used properly? If the rubber inserts are not used inside the pen caps
in the pen station when refillable ink pens, dispos-
able ink pens or high-speed ceramic pens are used,
since the pen caps are not sealed completely, ink may
drip. Mount the rubber inserts properly (Refer to 1.3
“Mounting the Pens”).
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