Unisys E-@CTION EFP9800 - Manual (Page 55)

Diagnostics and Print Tests
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Flash Download Mode
This section describes the protocol used to download firmware to the printer
from an application through the communication connector. Requests are
provided to query the state of the firmware and to check the CRC of a given
flash sector. All downloading must be done with 8 bit communications.
Note: An alternate method of putting the printer into flash download mode
is to send the Put the Printer in Flash Download Mode command (1B
5B 7D) during normal operation. See “Section 10: Flash Download
Commands” for more information.
Caution
The DIP switches are set at the factory to predetermined settings. Change the
settings carefully to avoid changing other functions. Run the Diagnostic Print
Tests to see what emulation the printer is set for. For more information, see
“Diagnostic Print Tests” later in this section.
Note: The EFP9800 FLASHLOAD software utility can also be used for
downloading firmware to the unit. This utility is included in the
EFP9800-SW1 style package.
Before putting the printer into the flash download mode, install the program
that implements the download protocol onto the host computer (or any IBM-
compatible computer that can be connected to the printer for diagnostic
purposes). This program is available from Unisys. Contact your Unisys sales
representative for more information.
1. Turn the printer off.
2. Turn the printer to the back to access the DIP switches and write down the
current switch settings.
3. To put the printer into flash download mode, set the DIP switches to the
appropriate settings for the interface you are using.