Xerox 6180N Generic MICR Fundamentals Guide  - Page 107

Quality control Summary of ANSI standards Parameter Specifications Testing tool Format • Right edge of first or right symbol must be 0.0625 inch/15.87 MICR Gauge mm ±0.0625 inch/7.937 mm from the edge of the paper. • All E13B characters must be within 0.25 inch/6.35 mm horizontal printing band. • 0.625 inch/15.87 mm clear band must be free of magnetic ink other than E13B font. Character spacing • Distance between right average edge of adjacent characters MICR Gauge and must be 0.125 inch/3.175 mm ±.010 inch/0.254 mm. Comparator • In other, or adjoining fields, minimum space between right average edge of adjacent characters must be no less than 0.115 inch/2.92 mm. Vertical alignment Bottom edge of adjacent characters must not vary vertically more MICR Gauge than 0.030 inch/0.381 mm. Character or line Must be no more than ±1.5 degrees with respect to the bottom MIRC Gauge and skew reference edge. Comparator Character dimension • Average edge tolerance must be ±0.005 inch/0.0381 mm Comparator from nominal dimension. • Minimum width of horizontal bars must be no less than 0.011 inch/0.330 mm. Character edge • Irregularities about the average edge may extend ±0.0035 Comparator irregularities inch/0.089 mm from nominal edge dimension. • Sum of edge present in 0.0015 to 0.0035 inch/0.038 to 0.089 mm zone shall not exceed 25% of total edge. Voids • Voids are acceptable if contained in 0.008 by 0.008 inch/0.2 Comparator by 0.2 mm square. • Voids are acceptable in double zones if contained in 0.010 by 0.010 inch/0.254 by 0.254 mm square. • Total area of all voids must be less than 20% of the area of the line. • Voids 0.002 inch/0.051 mm by any length, vertical and horizontal, are acceptable. Extraneous ink (Front) Spots contained in 0.003 by 0.003 inch/0.08 by 0.08 mm area are Signal level tester acceptable in any amount. Spots contained in 0.004 by 0.004 inch/0.10 by 0.10 mm area are Comparator limited to one character space totaling no more than five per field. Extraneous ink (Back) Spots contained in 0.006 by 0.006 inch/0.15 by 0.15 mm square, Signal level tester or equivalent area, are acceptable. and Comparator Debossment/ embossment • Measure is limited to 0.001 inch/0.03 mm depth measured Microscope with an from face of document. oblique light or • Measure is limited to 0.0006 inch height, measured from the face of the document. electronic probe with a tip of 0.004 inch/0.10 mm radius Signal strength Relative signal strength of any character may vary -50% to +200% of nominal signal level. Signal level tester Generic MICR Fundamentals Guide 6-21