Adjustomg screw (3/32" hex wrench)

Shim

The “shim” is a narrow strip of CR-80 card.

It must be removed before running the printer.

2.Using the manual card transport knob, drive a card under the head and leave it there. With the card under the head - make sure it’s there - turn the adjustment screw to elevate the left end of the head bracket to the point where your CR-80 feeler gauge just slides under the bracket. Test the mechanical setup by running the card back to the hopper, then slowly out again. There should be a barely perceptible upward movement of the bracket as it rides up over the tapered pick edge of the truck, see diagram on preceding page.

3.Load a few cards with magnetic stripe.

4.Click Mag Position Adjust. The printer will then:

a.Pick a card from the hopper

b.Mag encode it

c.Back up, then run it under the read/write head again to determine the position at which the mag encoding begins

d.Eject the card through the laminator. The starting position is stored in firmware and is used for all subsequent mag operations

5.Click Mag Amplitude Adjust. The printer will then:

e.Pick a card from the hopper

f.Mag encode it

g.Back up, then run it under the read/write head again to measure average maximum amplitudes of the recorded data displayed on the Mag Data Monitor below

h.Pause for a few seconds to allow adjustment

i.Back up again, and repeat the read cycle continuously until the PRINT button is pressed, after which the card is ejected through the laminator

6.Turn the adjusting screw first clockwise then counterclockwise in quarter-turn increments while observing the data monitor. With the bracket setup described in Step 2 above, it is pos- sible that there will little change in amplitude even with a full turn or two of the screw in either direction.

•If there is no appreciable change, press the PRINT button to end the test, then restore the default setup of Step 2 using the CR-80 card shim.

••If the amplitude varies as you turn the screw, tune for maximum values.

All three tracks should read at least 130. If there are track-to-track differences greater than 10, the head may be defective, or skewed in the bracket. If skewing is the problem, loosen the lock nuts on the clamp screws (diagram, preceding page), back out the screws a turn or two, then carefully free the head (which may have a light adhesive film on the surfaces mating with the bracket). Position the head with its rim a hair below the edges of the bracket, then retighten the clamp screws and lock nuts.

7.Complete the procedure by re-running Mag Posi- tion Adjust as in Step 4 above.

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P640i Card Printer User Guide

980541-001 Rev. A