Microplex PP 404 User Manual page 116

Appendix A Configuration of the printer

BAUD RATE (Only indicated if the serial interface is selected)
Controls the speed of data transfer. The possible transfer rates are: 600, 1200, 2400, 4800,
9600 or 19200 bps.

PARITY BIT (Only indicated if the serial interface is selected)
The data transfer will be checked by an even or odd parity bit. The values are: EVEN, ODD, or
NONE.

PROTOCOL (Only indicated if the serial interface is selected)
Selectable are: DTR, XON/XOFF, or XON/XOFF + DTR.
Sub-Function ADJUSTMENT

AGC POSITION
AGC (Automatic Gap Control) is an integral part of the paper handling capabilities of the printer.
It is an automatic adjustment function which ensures an optimal print quality when using
various paper thicknesses.
The gap adjustment will automatically take place whenever paper is inserted

after the paper source has been changed

from park position (fanfold)

after Power On

after the printer has been in the STOP mode

an AGC command has been issued.
The reference point for the measurement of the paper thickness is the AGC Position of the first
print line. Default for the horizontal AGC Position is 24 (= ink ribbon exchange position), any
position from 4 to 131 (at 10 cpi) can be selected.
An adjustment of the AGC Position is only necessary if a measurement at the default position
does not reflect the paper thickness of the area to be printed on or if there is a paper edge (e.g.
of a label) in that position (the measuring process requires a plain paper-surface).
In addition to the automatic AGC function, random measurements of the paper thickness can
be invoked by the AGC command, or a specific platen gap can be set using the PCC command.
This is to meet the requirements of forms with complex properties. For Details see the
Programmers Manual for the printer.
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