If your laser printer doesn't print dark enough for quality positives, try lightly spraying your Laser Printer Film with Casey's Ultra Black Toner Enhancement Spray prior to printing in order to darken the laser printer output. This will dissolve the toner and cause the toner particles to fuse together, making the black toner more opaque. Casey's Ultra Black is virtually invisible, leaving no residue and it only affects the toner areas.
Note: Casey's Ultra Black is prohibited for export. This product cannot ship air, you must select ground as the shipping method. We apologize for any inconvenience.