Chapter 5.
Firmware Download Instructions
69
5. Firmware Download Instructions
Tally T6xxx Series and TallyGenicom 63xx Series line printer firmware flash download files have
a suffix of .EXA or .EXB. All are self-extracting PKZIP files, containing a single compressed file
that can be downloaded without possibility of corruption. In other words, all of the separate bits &
pieces of our flash-download process have been rolled into a single file that is compressed using
PKZIP. Both the name of the ZIP file and the compressed firmware image file inside it have
suffixes that describe their contents:
ZIP suffix
Image suffix
Contents
.EXA
.TFA
TallyGenicom Flash ASCII format
.EXB
.TFB
TallyGenicom Flash BINARY format
ASCII format (.EXA) is used for printers that support only ASCII downloads (all T60xx and early
T62xx models). ASCII-format downloads are supported via parallel-port, using the special flash-
download panel key sequence with which you are already familiar.
BINARY format (.EXB) is used for printers that support BINARY downloads (i.e., T62xx with
Boot v2.3+ firmware, and 63xx models). BINARY-format downloads are faster; they are
compressed files that take less time to download & program. BINARY-format downloads are
supported via parallel-port or Ethernet. Note that Ethernet downloads require a controller with
8MB of RAM (the newer T62xx controllers have this).
5.1 Flash Download via Parallel Port
First, put the printer into flash-download mode.
Save the ZIP file to disk and open a DOS window. You will need to rename the file extension
from .EXA/EXB to .EXE because Windows won't let you execute files with .EXA/EXB
extensions.
With .EXA files, unzip to printer via "file.EXE -p" command; with .EXB files, unzip to printer via
"file.EXE -pb" command.
As an alternative, you could unzip the ZIP file to disk using "file.EXE" command, then send the
resulting .TFA/TFB file to the printer via DOS "copy/b file.TFx lpt1:" command. This simple
file-copy method also works if you are downloading firmware via USB-to-Parallel adapter, or if
downloading firmware from a non-PC platform (of course, the command format will be different).
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