Recommendation - Xerox 6100BD - Phaser Color Laser Printer Fundamentals

Quality control

Recommendation

6-26
• When the results are displayed, the use of a template with
highlighted "bad areas" does not indicate if there is a
specification failure due to edge void and edge irregularity
allowances. The dimensions of the template may be limited
by screen resolution. An accurate report tells you which
parameter is suspect and how likely it is to be out of spec.
The operator must then make the final judgment.
Automated test equipment is a valuable tool for highlighting
areas that require close inspection. This inspection must be
performed by a trained inspector who understands the limitations
of both MICR specifications and test equipment. A judgment call
is required to identify real problems from automated flags, call for
a second sample to verify the consistent nature of the problem,
or simply recognize a printing technology characteristic that
warrants little further attention.
A trained inspector using a MICR gauge and Small Optical
Comparator can make all MICR quality judgments when MICR
signal strength is not available.
Generic MICR Fundamentals Guide