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Automatic Forms Thickness Adjustment (AFTA)
The Automatic Forms Thickness Adjustment (AFTA) mechanism
performs the following tasks:
Automatically measures the forms thickness and adjusts the gap
from the print head to the platen rod based on the measured
value.
Measures the form thickness whenever printing is to occur.
When you replace the paper, the thickness is automatically
remeasured.
For the Document Insertion Device (F3), AFTA measures the first
document after you turn the printer On (|) or after you press Stop
and then Start.
For the Auto Sheet Feeder Device (F4), AFTA measures the first
sheet of each bin after you turn the printer On (|) and after you
press Stop and then Start.
The operator may adjust the AFTA by pressing Darker and Lighter.
Locate the information on your forms device and follow the
procedure for adjusting the print darkness in Chapter 1, “Setting Up
the 4230 Printer.”
Platen Rod
The platen rod is a metal bar with a flat surface. The platen rod is
part of the base printer and is easy to identify when no forms device
is installed. You need to know the location of the platen rod for
installing the forms device, loading forms, and aligning the first print
line.
Platen Rod
3-8 User’s Guide