PROBABLE CAUSES:
1.
The control panel adjustment is incorrect. This adjustment will shift
the position of the touch sensor of the LCD unit. Perform the
following steps:
a. Hold the Help key and turn power ON.
b. Touch selection #10 (control panel adjustment) on the touchscreen
to display the control panel adjustment screen. Note: If the
touchscreen is so far out of adjustment that there is no response when
touching #10, the control panel adjustment can be accessed (at this
point) by touching any numeric key on the 10-key pad.
Two + (plus signs) should be visible on the screen.
c. Touch the + at the upper right lightly with a touch pen
(something with a round tip which is made of resin is recommended as a
touchpen). Check the coordinates displayed in the top line at the top
of the screen.
d. Ensure the X coordinate and the Y coordinate
displayed in the message area fall within the standard values. The
acceptable values are on the second line.
e. If the values are not within the acceptable parameters, repeat Step 3 until the values are acceptable.
f. Touch the + at the lower left lightly with a touch pen
(something with a round tip which is made of resin is recommended as a
touch pen). Repeat the process used for the upper right coordinate
until acceptable values are achieved.
g. As verification of a
correct adjustment, touch the CHECK keys at the upper left and lower
right corners. You should hear a beep tone for each one. If a beep
tone is not heard, repeat the adjustment.
h. Turn the machine OFF to store the adjustment. Turn the machine ON normally and check operation of the touch screen.
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