I have a Canon Pixma MP160 and my alarm light is on and if flashes E then 2 then 7, can you tell how to fix it.

action to be done on E - 2 is to reload the paper correctly and press {black} or {color}
for E - 7 some fine cartridges are not installed in place.install the fine cartridges in the appropriate positions.

here's the link for the manual
http://gdlp01.c-wss.com/gds/6/0900002716/01/mp160_ug_us_v5.pdf
error messages would be found on page 87