Hi,
for end of day turn key to Z press 1 then 0 then cash
for end of week turn key to Z press 2 then 0 then cash
for ongoing daily tally turn key to X press 1 then 5 then cash
If you want to open cash drawer without wasting paper turn key to X then press #/NS
mark, April 2013
I think it is usually 10 CA/CG on this series.
If you need to program it, C-tech collective have a Fujitsu G-820 programming manual here: