I have a similar issue, but ends in 2 (SYSTEM HALT (6):INK LEAK :000002) and discovered it to be under the pumps near the main power switch. I would guess 000001 is below the ink bottles. As described, there is a small chip there (this one is only less than 1" x 1") right below the agitation pump for the white inks we have in the middle. There was ink against the chip which seemed to connect the sensors on the chip, setting off the error. I cleaned the chip and area, found the leak (coming from the agitation pump) and will be having a tech come out to replace as it is more than I would like to do (don't want to fill the lines with air and have to figure out a full air purge for the whites).