The ornamental design for cleaning device for optical connectors, as shown and described.
FIG. 1 is a right side elevation view illustrating a main body and an attachment covering a front portion of the main body of my new design with a cap portion of the attachment in a closed position.
FIG. 2 is a top plan view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a bottom plan view thereof.
FIG. 5 is a front elevation view thereof.
FIG. 6 is a left side elevation view thereof.
FIG. 7 is a front, side perspective view thereof.
FIG. 8 is a front, side perspective view thereof with the cap in an open position; and,
FIG. 9 is a front perspective view thereof with a guide and a cleaning shaft attached to the front portion of a main body of the cleaning device with the attachment now covering a rear portion of the main body.
No claim is made to the portions shown in broken lines.