Oki PT340 Guide De L'utilisateur page 9

Only use the AC adapter specified below.
Item
AC Adapter
Caution: Only use authorized AC adapters.
Caution: Do not use any other bundled AC adapter other than designed
for this printer.
2. AC Adapter
No.
KA02951-0120
Input : 100 to 240V AC, 50-60Hz
Output : 24V
7
Remarks
± 5%,1.5A