Microcom 326M User Guide - Manual (Page 53)

Chapter 6 Maintenance and Adjustments
326M User’s Guide
41
Application file recognized.
Erasing old application...............................
Saving new application........................................ (The periods are status indicators)
Booting application now . . . (The periods are status indicators)
9. If problems are experienced during the update and the printer has lost the previous
application, refer to the following section regarding the recovery file update.
10.
After the code has been successfully updated, the “^D391)1”, “^D392)1”, and
“^D390)1” commands must be sent to complete the update process. The “^D391)1”
and “^D392)1” commands force setting to factory defaults while the “^D390)1” resets
the printer and automatically issues an enquiry command on reboot.
11. Once the printer reboots, any custom configuration file and/or commands must be
sent to the printer to verify that all commands are set to the desired values before
using with the intended application.
12.
The “^D945)?” command may now be issued to compare against the previous listing
to assist in determining what commands were changed in the update process.
6.9.2 MCA Compressed File Recovery
The printer’s firmware can typically be recovered using this method in the event that during
the MCA update the printer has become unstable. Using this method is only intended to
provide a recovery method and is not intended to be a normal way to update the MCA
firmware
stored in the printer’s flash memory. This method requires the use of a
compressed MCA code file, a host computer equipped with a RS-232 serial port, and a
Terminal Emulation Program (i.e., HyperAccess, HyperTerminal, Procomm Plus, Tera Term
Pro...).
It is a good idea to completely read through the procedure before an update attempt is
made. Do not send any unnecessary characters or remove the printer’s power during the
update or the printer may become inoperable.
1. Make sure the RS-232 serial connection is made between the host and the printer
including the proper Baud rate.
2. Contact Microcom Corporation support department and/or visit
www.microcomcorp.com to acquire the desired MCA code file.
3. Start the terminal emulation program and set the serial parameters to 115200,n,8,1.
CAUTION: Do not send any unnecessary characters or turn the printer
off during the flash memory update. Failure to observe this precaution
may result in the printer becoming inoperable.