HP PageWide P779, E75160, P75250, P77440, E77650, E77660, P77940, P77950, P77960 - On-Site Installation Guide

a. Open the trays, and then remove any internal shipping materials.
b. At the front and rear of the accessory, slide the lock button to the locked position.
WARNING! Never attempt to move the printer and accessory in the unlocked position. The printer
might fall o of the accessory and cause damage or personal injury.
78 Chapter 8 On-site installation ENWW