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Introduction
P6000L/P6200L Series printers include the Printronix standard Electronic Vertical Format
Unit (EVFU) for P-Series emulation mode, a Direct Access Vertical Format Unit (DAVFU)
if the printer has a Dataproducts interface, and a serial emulation mode Vertical Format Unit
(VFU). Each vertical format unit provides an efficient method for fast paper slewing during
repetitive printing tasks. The type of VFU used is a configuration option selected from the con
trol panel. This chapter describes:
DAVFU
n
P-Series EVFU
n
Serial Emulation VFU
n
DAVFU
The DAVFU is a feature of P6000L/P6200L Series printers equipped with a Dataproducts in
terface. The DAVFU permits fast paper slewing within a form of up to 143 lines in length.
A maximum of 12 channels can be assigned to each physical line of a form. Similar to program
ming a normal EVFU, the user is responsible for assigning channel numbers to each line on the
form. Channel codes are then sent by the host computer to the printer resulting in rapid paper
slewing to the corresponding line.
General DAVFU Programming
The general DAVFU programming procedure is:
1.
Design the form, determining spacing and channel assignments for each line as shown in
Figure 5-1.
2.
After the form is designed, the programming sequence can be sent to the host. The basic
DAVFU sequence is:
Start Load code, channel assignments per line (requiring two data bytes per line), and the
End Load code.
Details of this procedure are described on the following pages.
Vertical Format Units
CHAPTER 5
VERTICAL FORMAT UNITS
5-1
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