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A470 Users Guide

Pertech® 2006

9

The Document Stop limits the depth an inserted form can be placed into the Validation Slot.  This 

defines the validation printfield height.  Printers are manufactured with the maximum printfield 

setting of 2.16 inches but the dimension can be reduced to 1.44 inches by turning a slotted 

screw in the bottom of the printer case counter-clockwise (CCW).  Each CCW revolution raises 

the document stop and decreases the printfield height 1/32” (.03125”) or .79375 mm.  DO NOT 

ATTEMPT TO ADJUST THE DOCUMENT STOP OUTSIDE THE PRESCRIBED LIMITS OR 

DAMAGE TO THE PRINTER COULD RESULT.  The validation form must be at least 1 inch taller 

than the selected printfield.

Printfield Height

CCW Rev

Inches

Mm

0

2.16

54.9

1

2.13

54.1

2

2.10

53.3

3

2.07

52.5

4

2.04

51.7

5

2.00

50.9

6

1.97

50.1

7

1.94

49.3

8

1.91

48.5

9

1.88

47.7

10

1.85

46.9

11

1.82

46.1

12

1.79

45.3

13

1.75

44.5

14

1.72

43.8

15

1.69

43.0

16

1.66

42.2

17

1.63

41.4

18

1.60

40.6

19

1.57

39.8

20

1.54

39.

21

1.50

38.2

22

1.47

37.4

23

1.44

36.6

Clockwise rotating lowers the 

document stop and increases the 

print field. 

Counter clockwise rotation raises 

the document stop and decreases 

the print field. 

Verification of the desired document stop setting can be made by printing a Self Test on 

validation media and measuring the printfield.  A  Self Test is initialized by turning the printer 

power off, inserting a form, and turning the power back on.   The validation rollers can be 

opened manually by raising the printer cover and pressing downward on the yellow sector gear 

if the printer will not accept a form.  The printfield dimension is measured from the top of the 

first line of print to the bottom of the form.