Appeal No. 2002-1788 Page 5
Application No. 09/217,667
placing a strip material into said friction drive apparatus; and
moving said strip material a predetermined aligning distance in a forward
X-axis direction while steering said strip material with respect to a detection
sensor to align said strip material in said X-axis direction prior to a plotting,
printing or cutting operation based on input from said detection sensor.
40. A method for aligning a strip material in an apparatus for performing a
work operation on said strip material, said strip material being advanced in an X-
axis direction in a course of a work operation, said method comprising the steps
of:
placing a strip material into said apparatus without precisely aligning said
strip material in said X-axis direction;
establishing an initial Y-axis position of said strip material at an initial X-
axis position using a detection sensor;
displacing said strip material a predetermined aligning distance forward in
said X-axis direction;
establishing a second Y-axis position of said strip material at a second X-
axis position using said detection sensor; and
moving said strip material within said apparatus to reduce misalignment of
said strip material in said X-axis direction prior to performing said work operation,
said misalignment being reduced based on input from said detection sensor.
44. A method of aligning sheet material in an apparatus, the apparatus having
a drive mechanism for engaging and shifting the strip material in the course of a
work operation performed by the apparatus on the strip material, comprising the
steps of:
positioning the strip material in the apparatus in engagement with the
drive mechanism without regard to a precise alignment of the strip material with
the longitudinal direction;
moving the strip back and forth in the longitudinal direction by means of
the drive mechanism;
measuring the lateral movement of the strip material at a given point in the
apparatus, the lateral movement resulting from misalignment of the strip material
and movement in the longitudinal direction, the lateral position of said strip
material being monitored by a detection sensor; and
correcting the misalignment by shifting the strip material with the drive
mechanism to reduce the lateral movement resulting from the misalignment
during movement in the longitudinal direction prior to performing a work
operation and based on input from said detection sensor.
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