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Accidently reset sharp register ER-A450S and can't use till.. How can I fix this problem.

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4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 159 Answers

SOURCE: I have sharp er-a420 it was in my garage for two

Most Sharp register, including the ER-A420, have a rechargeable battery mounted inside to hold all memory when the power goes out. It should last a few months, but two years is a bit much. This might get it going:

  1. Unplug from AC POWER.
  2. Turn the key to PGM.
  3. Hold down both paper feed keys (at top-left of keyboard).
  4. While holding those two buttons down, plug the power back in.
  5. Turn the key back to REG.
  6. Enter 1 CASH # to sign on as Cashier 1.
  7. Try a sale.
There is a strong chance this won't do the job, because the memory has been randomized by total loss of power when the battery died. Worse yet, the battery may be too far gone to ever take a solid charge again. If so, you probably need the help of a Sharp register dealer to replace the battery, totally clear all memory and reprogram it. It's probably worth the money; the -420 is an excellent little register.

Posted on Dec 24, 2009

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Electroboy
  • 1648 Answers

SOURCE: We just got a Sharp ER-A440 register (used) and need to reprogram it and get the interface cable RS-232C. We are overwhelmed with how to use this, can you help?

Hi. You do not need an RS232 cable to program the machine. It can be programmed via the keyboard.
Firstly, it would pay to have the battery checked. They use an internal rechargeable battery which should be replaced every four years. If it hasn't been changed, it can leak on the circuit board and damage the machine. If the battery is not holding a charge, it will also lose your programming when the power is turned off. This is part of normal dealer servicing but you can't be sure that the previous owner has had it serviced and checked.

You will need to program department names. This is listed under "programming for departments - alphanumeric characters" in the instruction manual.To change the shop name on the receipt, see the section called "Programming various functions - programming of print messages".Once you have given those two a try, I can point you to any other parts of the manual you will need. Just let me know what else you want to set up.

Posted on Nov 23, 2011

ahsonsaphire
  • 61 Answers

SOURCE: I need an rs32 cable for sharp cash register er a450s

simply go to the vendor. He will give u

Posted on Aug 11, 2014

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storage for how long, 1 week, one decade? just a hint....

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All of these manuals can be downloaded at:
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1 Answer

Sharp er-a330 cash register prob'


The Sharp ER-A330 and ER-A310 both have a calculator function that turned out to be just trouble for users who don't need it and don't know how to turn it off. At the bottom-left of the keyboard is a button labeled PO. Normally you enter a dollar amount and touch that to Pay Out money from the till. On these models it also activates the calculator mode, allowing you to add and subtract numbers without affecting sales.Touch PO to turn calculator mode back off, and you'll have a cash register again.
Let me know if this isn't the fix you need.

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