JCM Part No . 960 - 000076R _ Rev . 1 © 2007, JCM - American Corporation 6 - 4 Section 6 World Bill Acceptor (WBA® - 1x/2x - SS & SS2) Calibration and Testing 10 . At this point re - insert the White Calibration Paper and click on the “OK” Screen Button to re - start the “Adjusting with White Reference Paper” calibration procedure again . 11 . Repeat Steps 5 through 9 three to five times until the Figure 6 - 14 Screen appears . Calibration with White and Black Paper is now complete . Remove the final calibration paper and close the Acceptor Head ( See Figure 6 - 15 a) . Make sure that the tabs on both side of the Acceptor Head are once again firmly locked in place ( See Figure 6 - 15 b) . 12 . Click on the “OK” Screen Button to start the paperless calibration procedure (i . e . , no calibration paper inserted) . When calibration begins the Figure 6 - 16 Screen will appear . 13 .   When the paperless calibration process is complete, the Figure 6 - 17 Screen will appear . 14 . Insert the MAG Head Test Board into the Acceptor and find the location where the second line of MAG Head Test Board just aligns above the Acceptor Head Roller located on the lower tray (See Figure 6 - 18) . Make sure that the tabs on both side of the Acceptor Head are once again firmly locked in place . 15 . Click on the “OK” Screen Button to start the MAG Head Tester Calibration procedure . The Figure 6 - 19 Screen will appear showing the current value (a) and the peak value (b) detected after the MAG Board has been inserted . Figure 6 - 13 White Re - Calibration Request Screen Figure 6 - 14 Remove Calibration Paper Screen Figure 6 - 15 Removing Final Calibration Paper a b Figure 6 - 16 Paperless Calibration Screen Figure 6 - 17 Magnetic Test Calibration Screen NOTE: Closing the Acceptor Head once the calibration process starts will result in an erroneous reading! Figure 6 - 18 Aligning the MAG Head Calibration Test Board