ER-A450 (serv.man5). ERA450 Operation Manual - Sharp ECR User Guide / Operation Manual. Page 116

When power is lost, the machine retains its memory contents and all information on sales entries.

•  When power failure is encountered in register idle state or during an entry, the machine returned to the normal

state of operation after power recovery.

•  When 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.)

If the printer runs out of paper, the printer will stall, “PPPPPPPPPP” 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 “5.
Installing and removing the paper roll” in this chapter, install a new roll paper in the proper position, then press
the 

c

key. The printer will print the power failure symbol and resume printing.

If the print head comes up, the printer stalls, “H” will appear on the very left of the display, and the register will
start to continuously produce an intermittent beeping tone. Key entries will not be accepted. Bring back the print
head to the correct position, then press the 

c

key. The printer will print the power failure symbol and resume

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.

• 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.

3

2

1

Printing position

Head-up position