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My sharp ER A420 don't want to go on - Retail Supplies

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If all power is on and the fuses all okey, maybe you will have to call a qualified tech

Posted on May 02, 2015

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Posted on Jan 02, 2017

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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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Here is the manual for the ER-A410 and ER-A420

http://www.cbspos.com/usermanuals/ERA410_ERA420UIB.pdf

it is a PDF file so you will need an Adobe PDF reader to open it.

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Turn your key to P and press cash/total button twice...goood luck

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Ther is a possibility that your machine was operating on training mode. In this mode , no memory is kept

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if you can email me at witmoz@gmail.com i can send you the pdf file for this.the one i have is for the era410-420.

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SHARP ER-A410 CASH REGISTER DRAWER WON'T OPEN


Does it open when you print a Z report? The most common problem with these was either the drawer wiring or drawer solenoid failing.
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If anyone needs more information, the Sharp ER-A410 and ER-A420 manual is here:http://the-checkout-tech.com/manuals/cashregisters/Sharp6.php

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