(a) Summons: Issuance. Upon commencing the action the plaintiff or his attorney shall deliver a copy of the complaint and a summons for service to the sheriff, deputy sheriff, or special sheriff; any other person duly authorized by law; a person specifically appointed to serve them; or as otherwise provided in subdivision (c) of this rule. Upon request of the plaintiff separate or additional summons shall issue against any defendant. The summons may be procured in blank from the clerk, and shall