MagTek InSpec 9000-2005 - Manual (Page 49)

Section 4. Data Presentations
39
Figure 4-12. Performance Histogram Chart - Start Sentinel
Trends to observe and report are when the bars begin to drift. When this occurs, the technician
may want to investigate the process for encoding the card stock, the encoder, or may send the
card or cards to a test laboratory for analysis. Cleaning and calibration of the Tester may be in
order.