Ricoh SP C400DN User Manual page 138

Replacing Consumables and Maintenance Kit
M
Turn the green lever clockwise to lock the unit.
N
Close the inner cover. Lock the inner cover by pressing in ( ) and then
turning the two green levers clockwise ( ).
6
O
Carefully close the left cover.
P
Plug in the power cable, and then turn on the power.
The printer starts calibration. Wait until it stops.
Wait until "Ready" appears on the display panel.
Do not turn off the power during calibration. Doing so results in malfunction.
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