Cause The 1640 support code signifies that the printer has detected that the remaining ink in one or more of the ink tanks may have reached the lower limit line shown on the ink tank.
Learn how to reseat or replace a print head in the PIXMA G1200. If you're experiencing poor print quality (streaked / banded prints, incorrect / missing colors, blank pages, etc.), or if you're seeing certain error codes on your computer, reseating or replacing the print head may resolve the problem.
If the function for notifying the remaining ink level (remaining ink level notification function) is enabled, the Alarm lamp inform you of the error when a remaining ink error occurs. Count the number of flashes and take appropriate action.
