HP AFICIO SP 8100DN - Manual (Page 104)

Adding Staples
93
6
C
Hold both sides of the cartridge, and then pull up the upper unit of it.
D
Take out the empty refill in the arrow direction.
E
Align the arrows on the new refill and the cartridge, and then push in the
refill until it clicks.
AQV702S
AQV703S
AQV704S