Alan Womack wrote: > > What couple pieces of electronics, etcc could I use to disrupt the write power going to the chip but not its ability to read the chip? > As the other post mentioned you might (I'd almost bet on it) run into issues of verification. Also there are likely 50 to 100 possible designs of flash memory that Epson got to choose from. Visit your local distributors with a large trunk and pickup about 200 pounds of manuals. Then read through the specs on the chips and the application notes. Now try and guess which they used. Remember it may be marked with non-standard markings just because Epson asked them to do it. Now figure out how to defeat the write cycle. Typically you'll get something like strobe, command, address, data, DOIT, verify, report status. All done serially via one or two signal lines. With the "rude" voltage being timed with the DOIT. And if the "rude" voltage is on the +V line then you can't just break the line, you have to clamp the voltage, and intercept the verification status with your own. And Epson may have just had the chip custom designed. Have fun. It would be easier to have the chips duplicated, if a standard part, and as part of a CIS system include 100 throw away chips. When it says done, put in another. - GOSHAWK - Hawk Mtn Art Papers-economical, 100% cotton, coated fine art paper in sheets & 44" rolls. Ideal for brightly colored fine art reproductions Free samples (Limit 500) http://www.hawkmtnartpapers.com/goshawk.htm