Printing bar codes with HP 41?

[husmann]

The “HP 82242A Infrared Printer Module Owner’s Manual” states on page 82:

“Your infrared printing system does not have the following features available in the earlier thermal printing systems: … The Infrared Printer Module does not support bar-code printing functions.”

That implies IMHO that earlier thermal printing systems do support bar-code printing functions. But how? I did not find any hint towards bar-code printing neither in the “HP 82143A Thermal Printer Manual” nor in the “HP 82153A Bar Code Wand Manual”.

Any hint is highly appreciated.