A toner for developing an electrostatic latent image comprising a resin, a colorant and a releasing agent is disclosed. In case that tungsten is used as the catalyst, tungsten nitride is formed as the nitride. A coupling is provided and disposed between the top and connector post for enabling the top to swivel about the connector post. , by using the non-ribose moiety as a point to which a ligand or other entity, e. The shipping comb may have first features at its proximal end which are configured for mating with second features at the distal end of the ramp.