User manual SHARP EL-2630L

[. . . ] 3) The memory item counter will count the number of times that the key has been pressed in the addition. note: · Each time the key is used in the subtraction, 1 will be subtracted from the count. The count is printed when the memory is recalled. If the count exceeds the maximum, the counter will recount from zero. [. . . ] 1) For addition or subtraction, each time is pressed, 1 is added to the item counter, and each time is pressed, 1 is subtracted. PAPER FEED KEY LAST DIGIT CORRECTION KEY NON-ADD / SUBTOTAL KEY: Non-add ­ When this key is pressed right after an entry of a number in the Print mode, the entry is printed on the left-hand side with the symbol "#". This key is used to print out numbers not subjects to calculation such as code, date, etc. subtotal ­ Used to get subtotal(s) of additions and/or subtractions. When pressed following the or key, the subtotal is printed with the symbol "" and the calculation may be continued. By pressing this key even in the Non-print mode, the displayed number is printed without any symbol. IC" position, and Date or Clock is displayed, press this key to print the displayed contents, including "#" symbol, from the left side of the paper roll. When the Date / Clock printing is complete, the Calculation mode is restored. CLEAR / CLEAR ENTRY KEY: Press this key twice, followed by TOTAL KEY EQUAL KEY CHANGE SIGN KEY: Changes the algebraic sign of a number (i. GRAND TOTAL KEY COST PRICE ENTRY KEY: Press this key to enter the cost price. SELLING PRICE ENTRY KEY: Press this key to enter the selling price. If printing is blurry even when the ink roller is in the proper position, replace the roller. 1) 3) Hold the top of the ink roller and remove the roller by pulling it toward you and then upward. Time for battery replacement Life of the memory protection battery is approximately 2, 500 hours at 25°C(77°F) with the power plug not connected to the socket. * When the memory protection battery is weak, the date/time setting is initialized (1/1/2006, 12:00:00 a. Verify the date/time setting in the date/clock display mode when connecting the power plug to the socket. If the date/time setting is modified or incorrect, promptly replace the memory protection battery with new one. (The life of the pre-installed battery may be shorter than expected because of the time the calculator spends during shipment. 1) Turn the power switch "OFF" and unplug the power supply plug from the outlet. 2) Remove the battery cover on the back of the unit. Wipe the battery well with a dry cloth and place the plus "+" side upward. 5) Press the RESET switch on the back of the unit (See "RESETTING THE UNIT"). [. . . ] *3 : Press to clear the memory before starting a memory calculation. EXAMPLE 1: Determine the cost price for 30% margin when the selling price is set at $500. Selling Price Margin Cost price Berechnen Sie den Einkaufspreis für eine Gewinnspanne von 30%, wenn der Verkaufspreis auf $500 festgelegt ist. Perform two calculations using $840 and $525, both of which already include tax. [. . . ]