TechNote# 3870-001

3870 Series
Adjusting Factory Head Gap Setting
20 September 2001 Larry Kyger

Models:
3870,3970,3972,3974

Summary:
After adjusting auto head gap to "20" and printing is still smudging and smearing, a factory adjustment may be necessary

Resolution:


 To adjust Factory Head Gap Setting:

> Turn the power Off.

> Hold down push buttons 4 and 5.

> While holding buttons down, turn power ON.

> LCD should display "FACTORY TEST"

> Press the ON Line button. LCD will display "Adjust Gap Offset"

> Press the #9 button (Down Arrow). A number will be displayed in the LCD

> Press the #9 button to increase the number. This will adjust the head gap farther 
   from the striker bar.

> You may start by increasing the number by 10. (Note: you may have to repeat this process
   several times to get the print quality correct)

> Once number has been increased, press the Enter button. The LCD will display
   "FACTORY TEST"

> Turn Power Off; wait about 10 seconds; and then Turn Power On.

> Printer now has a new factory head gap setting

Specifications subject to change without notice.
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