Kodak 7520 manual Evaluating test results, Dimensional Fields Pass or Fail, Message

Message 3

If the bar code test was successful, the following results will be displayed. Press Enter to access each display.

W/N = XX. XX : 1

NEW = .XXXX

Press Enter to display the next message:

		RMIN = XXX%
		Contrast = .XXX%
	Press Enter to display the last message:
		MOD = XXX%
		DEF = XXX% Grade = X
Evaluating test results
	The results of the Read Rate test will tell you how well your Bar Code
	Reader is working. The following descriptions and tables will help you
	determine the results of the bar code test.
	Dimensional Fields (Pass or Fail)
	W/N — the average ratio of wide element widths to narrow element
	widths within a bar code. The ratio is calculated for both bars and
	spaces; the smallest of the two ratios is displayed.
	New — the measure of the smallest Narrow-Element Width.
	Reflectance Fields (Grades A through F)
	RMIN — minimum reflectance. A measure of the lightest element of the
	bar code.
	Contrast — a comparison of the darkest and lightest element of the bar
	code.
	MOD — Modulation. A measure of the consistency of the overall bar
	code print clarity (all elements), specifically the occurrence of spots (in
	spaces) and voids (in bars).
	DEF — Defect ratio. A measure of the consistency of the individual
	element print clarity, specifically the occurrence of spots (in spaces) and
	voids (in bars).
	Grade — indicates the overall grade of the bar code evaluation. This
	grade is based upon the field values that appear in the remainder of the
	display. The fields which appear in the remainder of the display are
	either dimensional or reflectance fields.
	Each of the reflectance field values are converted to a letter grade
	(where A is the highest and F is the lowest). The lowest letter grade
	assigned to any one of the reflectance fields is the overall grade
	assigned to the bar code.

8-14 A-61140 January 2000