ER-180 Electronic Cash Register AU Program Mode Programming • 41
System Balancing
NET SALES TOTAL = DEPARTMENT TOTALS (add positive, subtract negative)
+ TAX TOTAL (add-on, external straight tax version only)
+ % TOTAL
+ (−) TOTAL
GROSS SALES TOTAL = NET SALES TOTAL
− MERCHANDISE RETURN
− (−) TOTAL
− % TOTAL
ENDING GRAND TOTAL = GROSS SALES TOTAL
+ PREVIOUS GRAND TOTAL
Maintenance
1. Avoid excess dust and extreme temperatures.
2. Be certain that AC cord is inserted firmly in the outlet, and that cord poses no danger of
accidental tripping.
3. Use no chemicals or abrasives while cleaning cabinet or keyboard.
4. Do not pull or hold paper while the register is printing.