OKI LP440 User Manual

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Powering the Printer using the Optional AC 
Adapter 
If your printer comes with the optional AC adapter, it can be 
operated on AC power instead of the supplied battery pack. 
1. Remove the cover of the printer’s DC input jack (1) and 
connect the AC adapter’s (2) DC output terminal (3) to it. 
2. Connect the AC adapter to the wall outlet (4) and turn on the 
power. 
The POWER lamp on the adapter lights green.
Important!: Be sure to turn the printer power off when 
removing the DC output terminal of the AC 
adapter or disconnecting the power source. 
Otherwise, the information stored in the printer 
may not be updated.