You need to Suppress Ref. Designator from CAM Output for this components. Go in File, CAM and select Paste Mast output, then select Edit - Options and in Other Option section type Ref. Des. For example you can type R1 or R. If you type R1 only output for that one component will happen. If you type R all componets will be suppressed from output.
Be sure the "Pads" item is selected in the CAM layers selection for Paste Mask. This enables the padstack to override the defaults.