20 Most Recent Sharp XE-A402 Electronic Cash Register - Page 3 Questions & Answers

Make sure it has a new roll of paper, then turn it off and on. Try to use it in Reg. If it doesnt work, then turn the key to the other positions and see if it works in another key position. If it does, press clear, then cash. If it still doesnt work, come back with more info. Does it display any error message?

The circuit board has been compromised either by surge voltage or power outage. The internal memory has been neutralized and the system is in limbo at this time. You may need to replace the board or have it reset if applicable by an authorized service techncician.

a service mode reset would probably fix this problem. turn the key counter clockwise two positions past program and then back to program.

Battery will only hold the program for 6 months, You may have to take it to a Sharp repair center to have it Initialized. One other thing you could try if you have a service key. Unplug AC Turn mode lock to blank spot next to program 2. Power on cash register by plugging it in.

It is very difficult to find information on the Sharp ER-1911 now. I don't have error notes for this model. All I can suggest is an online manual such as here:http://the-checkout-tech.com/manuals/cashregisters/Sharp_ER-1911_operating_manual.html

You have to clean the thermal head with a little rubbing alcohol. its the dark strip in where the paper goes.

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.

someone spilled a liquid on your machine. Have it serviceed by a qualified tech

Read your manual

Journal paper finished replace it

press esc button

use sub/total button

Replace the memory battery

You need to buy a 3,6v battery and get a qualified technician to fit it for you