Varnish coater for printed product

A varnish coater for a printed product, comprising:

• upstream rollers for picking up and metering varnish;
• a form roller which is brought into contact with one of said upstream rollers to receive the varnish therefrom;
• a blanket cylinder which is selectively brought into contact with said form roller and an impression roller;
• a main drive source for driving said impression roller and selectively driving said form roller;
• a subdrive source for driving said upstream rollers and selectively driving said form roller;
• first and second one-way clutches arranged between said blanket cylinder and said form roller and between said form roller and said subdrive source, respectively;
• and
• a gear mechanism for selectively transmitting a rotational force to said form roller;
• wherein said subdrive source drives said form roller via a subdrive source gear, a first transfer gear meshed with the subdrive source gear, said second one-way clutch, a second transfer gear meshed with a form roller gear, and said form roller gear, when said blanket cylinder is separated from said form roller, said subdrive source gear, said first and second transfer gears and said form roller gear being included in said gear mechanism.