Microcom 226 Users Guide - Manual (Page 51)

Chapter 6 Maintenance and Adjustments
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6.8 Auxiliary Button
The auxiliary button is used for factory adjustments and updating the flash memory.
Figure 21 Auxiliary Button
6.9 Flash Memory Update
This method is used to update the firmware stored in flash memory. To update the printer’s
firmware the following are required: a compressed MCB or MCA (ZIP 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...). The printer is configured at the factory
with serial parameters of 9600,n, 8,1 and the terminal emulation program will need the serial
parameters set to 9600,n, 8, 1.
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. Refer to section 3.2 in the event the printer
does not function properly after an update and the printer has become inoperable.
1. Make sure the RS-232 serial connection is made between the host and the printer
including the proper Baud rate.
2. It is recommended to use the fastest Baud rate up to 115200 to reduce transfer time.
Refer to the “^D670)” command regarding the printer’s serial port parameters. If the
printer does not update properly, use a slower Baud rate to transfer the update.
3. Contact the Microcom Corporation support department and/or visit the following web
address www.microcomcorp.com to acquire the desired MCA file.
Press and hold the
Auxiliary Button in while
powering up the printer.