Oki LP441s User Manual page 24

1. Remove the cover of the printer's DC input jack (1) and
connect the DC output terminal (2) on the AC adapter (3) to
it.
2. Connect the AC adapter to the wall outlet and turn on the
power.
The POWER lamp on the adapter lights green. Charging starts
and the battery indicator on the printer lights red.
When the battery pack is fully charged, the battery indicator
goes off.
Note: In the case of the Wireless LAN interface model, the
CHARGE LED on the LCD screen lights red when charging
starts, and goes off when charging is complete.
Charging Time
With the AC adapter, it takes about 5 hours for the battery pack
to reach full charge from a fully discharged state.
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