Xerox 6100BD - Phaser Color Laser Printer Fundamentals page 96

Quality control
MICR line boxes
Bottom of document
6-10
Character skew does not occur with Xerox printing systems.
However, line skew may occur if the paper skews when passing
through the printer or is poorly cut along the critical edge (see
the following figure).
Out of specification
Figure 6-7. Acceptable versus unacceptable line skew
(figures are exaggerated)
To check for line skew, follow these steps:
1. Place the document in the MICR Gauge. Place the document
so that the tops of all the MICR line characters touch the line
forming the top of the MICR line boxes, (shown in the
following figure).
Move document so the MICR characters
touch the top line of the MICR boxes
Figure 6-8. Line skew on the MICR Gauge
Top line of MICR boxes
Generic MICR Fundamentals Guide