User manual SHARP EL-2901RH

[. . . ] If service should be required, use only a SHARP servicing dealer, a SHARP approved service facility or SHARP repair service. If you pull out the power cord to cut electricity completely, the presently stored tax rate will be cleared. Do not wind the AC cord around the body or otherwise forcibly bend or twist it. [. . . ] * Although all available symbols are shown here for instruction purposes, these symbols will not appear on the screen simultaneously. 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. 3 Cleaning the printing mechanism If the print becomes dull after long time usage, clean the printing wheel according to the following procedures: 1) Remove the printer cover and the ink roller. 2) Install the paper roll and feed it until it comes out of the front of the printing mechanism. Do not rotate the printing mechanism manually, this may damage the printer. 2) pressing 3) Lift the attached metal paper holder up and insert the paper roll to the paper holder. There are several situations which will cause an overflow or an error condition. If an "0 E" is displayed at the time of the error, "­ ­ ­ ­ ­ ­ ­" will be printed in red and must be used to clear the calculator. also , in rare cases , printing may stop midway and the indication "E" appear on the display. This is not a malfunction but is caused when the calculator is exposed to strong electromagnetic noise or static electricity from an external source. Should this key and then repeat the occur, press the calculation from the beginning. When the integer portion of the contents of the memory exceeds 12 digits. The printing speed will vary with the number of rows and the figure types to be printed. When this unit is exposed to strong RF noise and/ or extreme physical shock during the operation, or when the power cord is plugged into the AC outlet, the unit may start functioning abnormally which, in some rare occasion all keys - including the power key and the key - cease to respond. If such abnormal conditions are observed, unplug the AC cord from the socket. [. . . ] EXAMPLE 2: Determine the selling price for 30% margin when the cost price is set at $350. EXAMPLE 3: Determine the margin when the cost price is set at $350, and the selling price at $500. The entered value (enter value, then press , , or ) will be kept in the buffer; the re-entry will not be necessary when recalculating. [. . . ]