An ornamentaldesign for a memo paper dispenser, as shown and described.
FIG. 1 is a front view of the memo paper dispenser showing my new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a perspective view thereof.
The broken lines in FIGS. 1, 2, 3, 5 and 7 are included for the purpose of showing features on the memo paper dispenser that form no part of the claimed design.