Sharp ER-A410 ER-A410 ER-A420 Operation Manual - Page 178

OPERATOR MAINTENANCE 1 In case of power failure When power is lost, the machine retains its memory contents and all information on sales entries. • When a power failure is encountered in register idle state or during an entry, the machine returns to the normal state of operation after power recovery. • When a power failure is encountered during a printing cycle, the register prints "========" and then carries out the correct printing procedure after power recovery. (See the sample print.) 2 In case of printer error If the printer runs out of paper, the printer will hault, "PAPER EMPTY" error will appear on the display, and the register will start to continuously produce an intermittent beeping tone. Key entries will not be accepted. Referring to "4. Installing and removing the paper roll" in this chapter, install a new roll paper in the proper c position, then press the key. The printer will print the power failure symbol and resume printing. If the print head is up, the printer haults, "HEAD UP" error will appear on the display, and the register will start to continuously produce an intermittent beeping tone. Key entries will not be accepted. Bring the print head to the c correct position, then press the key. The printer will print the power failure symbol and resume printing. 3 Thermal printing Your register prints by means of thermal printing. The print head applies heat to thermal paper which is chemically treated to change color when heated to a certain level. This creates the printed text. Cautions in handling the printer Printing position • If you are not going to use the register for an extended period of time, pull the print head release lever toward you so that the print head is set apart from the plate. Head-up position 176