Bematech MP-4000 TH Guia De Inicio Rapido página 9

Paper width adjustment
To change the paper width simply pull the spacer and insert it in the new paper
width position, as shown below.
The printer must also be programmed to print only in the new paper width.
Please refer to the User's Manual for further details.
The spacer can be used to adjust the roll with widths from 2 up to 3 and a quarter of an inch.
Spacer
Adjusted for 58mm
Adjusted for 76mm Adjusted for 80mm
82.5mm: No Spacer
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