Patent ID: 7209252

Claim:
A method for storing computer code for a printer-controller application specific integrated circuit (ASIC) having a non-ROM memory control comprising the steps of: a) storing non-final versions of the computer code in a first memory module, wherein the first memory module has non-ROM memory cells and a non-ROM interface, and wherein the non-ROM interface is operatively connected to the non-ROM memory control of the printer-controller ASIC and to the non-ROM memory cells of the first memory module; and b) storing the final version of the computer code in a second memory module, wherein the second memory module has a non-ROM to ROM interface and ROM memory cells, wherein the non-ROM to ROM interface is operatively connected to the non-ROM memory control of the printer-controller ASIC and to the ROM memory cells of the second memory module, and wherein the second memory module physically replaces the first memory module, and wherein the non-ROM memory control of the printer-controller ASIC is a EPROM memory control, wherein the first memory module has EPROM memory cells and an EPROM interface, and wherein the second memory module has an EPROM to ROM interface.