Spectra Logic T-Series Spectra T200 User Manual page 365

Figure 2
alphanumeric characters below the bar code. All dimensions are in
millimeters.
Quiet Zone
2X 4.318 mm
minimum
16.993
+0/–.787
Bar code
start character
Figure 2 The bar code specifications for half-inch media; alphanumeric on bottom.
Detailed Bar Code Specifications
December 2008
shows the dimensional specifications for labels with the
Note: When using bar code labels with alphanumeric characters along
the bottom edge, the bar code must extend at least 13.72 mm
below the top edge of the cartridge to ensure that the bar code
reader can read the label.
78.994
74.092
Alphanumeric
characters
Minimum symbol height is 11.1 mm, measured to the inside of the
label's edge.
The wide-to-narrow ratio is 2.75.
The narrow element width is 0.432 mm +0.03 mm or –0.076 mm.
The nominal width of the wide spaces and bars is 1.188 mm.
The inter-character gap is 0.432mm +0.03/–0.076 mm.
The quiet zone at the beginning and end of a printed bar code string is
10 times the narrow width or 4.32 mm.
The total nominal bar code string length (including quiet zones) is
74.088 mm.
The edge of the bar code is the edge of all printed area attached to the
bar. The edge roughness is the transition encountered as a horizontal
line is moved vertically from all black to all white. The edge roughness
maximum is 0.038 mm.
Unless otherwise specified, tolerances are X.XXX + 0.127 mm,
X.XXX + 0.762 mm.
Variation between all bars, white and black, must be less than +
0.0381 mm.
Tape Drive and Media Specifications
0.787
±
0.381
±
T200, T380, and T680 Libraries
Edge of cartridge
13.72
min.
11.1
Bar code label
365