Patent ID: 8783803

Claim:
A method performable by a printer for printing information on a print medium, wherein the printer comprises one or more ink jet heads configured to deposit ink onto the print medium in order to print the information on the print medium, the method comprising: receiving, into the printer, the print medium, wherein the print medium contains preprinted information located on a first portion of the print medium; and the printer (i) depositing ink, via the one or more ink jet heads, to print the information on a second portion of the print medium, wherein the second portion is different from the first portion, and wherein a residual amount of ink remains on the one or more ink jet heads based on the ink being deposited through the one or more ink jet heads, (ii) cleaning the residual amount of ink off the one or more ink jet heads, and (iii) marking an indication on the print medium at or near the first portion of the print medium, wherein the indication identifies the preprinted information located on the first portion of the print medium as being distinct from the information located on the second portion of the print medium, and wherein the printer marks the indication on the print medium at or near the first portion of the print medium using the residual amount of ink cleaned off the one or more ink jet heads.