XE-A137 (serv.man3). XE-A137 Operation Manual - Sharp ECR User Guide / Operation Manual. Page 78

When power is lost, the machine retains its memory contents and all information on sales entries. 
(Note: Three alkaline batteries must be installed.)

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

machine returns to normal 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, and “

” will appear on the display.  Key entries 

will not be accepted.  Refer to section 5 in this chapter, install a new roll, then press the 

l

 key.  The printer will 

print the power failure symbol and resume printing.

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• Avoid dusty and humid environments, direct sunlight and iron powder. (A permanent magnet and electromagnet 

are used in this machine.)

• Never pull the paper when the print roller arm is locked.  First lift up the arm, and then remove the paper.
• Never touch the surface of the printer head and print roller.

■

• Use only the paper specified by SHARP.
• Do not unpack the thermal paper until you are ready to use it.
• Avoid heat. The paper will color at around 70°C.
• Avoid dusty and humid storage places. Avoid direct sunlight.
• The printed text on the paper can discolor under conditions of high humidity and temperature, exposure to the 

direct sunlight, contact with glue, thinner or a freshly copied blueprint, and heat caused by friction from 
scratching or other such means.

• Be very careful when handling the thermal paper. If you want to keep a permanent record, copy the printed text 

with a photocopier.