https://github.com/song940/node-escpos/blob/d04f2b0c99b5bbbfde6100e2ed2f92f9be37db46/packages/printer/src/commands.ts#L180-L202
As can be shown here:
\x1d\x28\x6b\x03\x00\x31\x43 is used for version but as it can be seen [here]: x43 is for size of module
on the other hand x41 is for the model which is I guess what you mean by version.
https://github.com/song940/node-escpos/blob/d04f2b0c99b5bbbfde6100e2ed2f92f9be37db46/packages/printer/src/commands.ts#L180-L202
As can be shown here:
\x1d\x28\x6b\x03\x00\x31\x43is used for version but as it can be seen [here]: x43 is for size of moduleon the other hand
x41is for the model which is I guess what you mean by version.