Dump Mode; Memory; Direct Mode - Intermec EasyCoder PD4 Programmer's Reference Manual

Chapter 1—General Information

Dump Mode

The printer has the capability to perform in dump mode, which means
that the printer will print out the echo of the received ASCII. Use this
capability to debug your software when the printer does not perform as
you expect.
To enter Dump Mode:
• Switch off the power to the printer.
• Hold down the Feed key and turn on the power again.
• Keep on holding Feed key for more than 2 seconds.
• Send a string of characters or a label form to the printer and tap the
Feed key to produce a printout. Dump mode will also print control
characters, see character set table on at the end of Chapter 9.
• To return to normal mode, briefly tap the Feed key.

Memory

The firmware has dynamic memory allocation for print image buffer,
form, graphic, and external font memory. The first time the printer is
used, it is automatically initialized to default settings, see Chapter 3.

Direct Mode

You can print a label without using a predefined format by sending write
commands (text, bar codes, graphics, lines and boxes) to the printer after
having cleared the image buffer using an N command. The label remains
stored in the image buffer and can be printed over and over again by
sending new P print commands, until the buffer is cleared by an N com-
mand, or by retrieving and printing a Form (see FR command).
The Direct Mode is also used for retrieving and printing preprogrammed
label formats, for the issuing of global setup commands, for deleting
forms and graphics from memory, and to make the printer produce a
number of different reports.
4 ESim v5.12 for EasyCoder PD4—Programmer's Reference Manual