Patent ID: 7522869

Claim:
A process of MICR and non-MICR electrostatic magnetic imaging of two independent electrostatic latent images comprising: (a) pre-treating a blank check with a wax-based coating comprising an aqueous polyethylene wax emulsion; (b) forming a first electrostatic latent image in a MICR printing apparatus; (c) developing the first electrostatic latent image by contacting the first electrostatic latent image with a MICR toner to produce a developed MICR toner image; (d) transferring and optionally fusing the developed MICR toner image onto a check; (e) forming a second electrostatic latent image in a non-MICR printing apparatus; (f) developing the second electrostatic latent image by contacting the second electrostatic latent image with a non-MICR toner to produce a developed non-MICR image; (g) transferring said non-MICR toner image to said check; (h) fusing said developed MICR toner image and said developed non-MICR toner image to the check, wherein a fuser oil is supplied to the check during fusing.