No, 120V will not work on 220V if it is not designed accordingly. The two voltages are not compatible. 120V is the standard voltage in the United States, while 220V is the standard voltage in Europe. If you try to plug a 120V appliance directly into a 220V outlet, it will not work.
If that's for use in the UK, the plug adapter supplied fails safety standards and is illegal to import and use. It has no fuse complying with BS 1362. The plug pins are unsleeved and fail BS 1363. UK socket circuits are protected at 32A. A fuse in the plug is essential to protect the cord.
When you convert 220- to 100-volt wiring, you have to cap off one of the hot wires and install a new, single-pole breaker to replace the double-pole breaker used for the 220-volt circuit. If you need to use a 220V receptacle for a 110V appliance, an easier solution is to use a 220 to 110 adapter.
The printer does say 200-240v. And you're buying the US version so their preparation manual says you'll get a NEMA 6-20P plug, which is a 240v plug. You didn't specify where you're getting 245v readings. I'm going to assume this is a main panel reading.

Usage of 125V 20A receptacle for 240V 1A circuit. I need to instal a receptacle in my 240VAC, 3 phase machine for a 12V, 1A adapter. Adapter is good for 120-240VAC input. I happen to have a 125V, 20A duplex receptacle on hand. Is it okay to use it because of low current or is there an insulation or gap requirement for 240V that 125V will not meet.

Can I plug 240V into 220v? No, it is not possible or safe to plug a 240V appliance into a 220V power source. It is possible to reduce the voltage from 240V to 220V by using a Step Down Transformer. This however, will not increase the power available to the appliance and may have an adverse effect on the lifespan of the appliance.
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can i plug 240v into 220v