Key facts
- Brand
- Sharp
- Model
- A420
- Documents
- 5
- Languages
- EN · JA
- Last added
- 2023-10-18
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Sharp ER-A410 / ER-A420 User Manual
This manual begins with safety information, warning symbols, and proper handling to prevent electric shock, fire, or injury. It explains how to avoid using the device with damaged power cords, improper power sources, or in wet conditions.
The guide then covers installation, roll‑paper loading, key layout, date‑time and department settings, PLU/JAN configuration, and routine maintenance. It also details error handling, easy‑setting methods, and procedures for long‑term storage. This manual is written in Japanese.
SHARP A420 specifications
| Operating voltage | AC100V |
|---|---|
| Power cord condition | Do not damage or modify |
| Internal backup battery | Built‑in rechargeable battery for memory retention |
All SHARP A420 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What are the model numbers for this cash register?
The models are ER-A410 and ER-A420.
From: SHARP ER-A410/A420 Electronic Cash Register User Manual
How do I charge the batteries in the cash register?
Plug the machine into a standard wall outlet (120V +10% AC) for 24 to 48 hours to ensure adequate charge in the memory protection circuit.
From: SHARP ER-A410/A420 Electronic Cash Register User Manual
How should the register be charged before use?
It is recommended that each unit be allowed to recharge for a period of 24 to 48 hours prior to and during use by the customer.
What cleaning agents should be avoided?
Never use solvents such as benzine and/or thinner, as they will lead to discoloration or deterioration of the cabinet.
Where are the model number and serial number located?
These numbers are located on the right side of the unit.
From: Sharp ER-A410/ER-A420 Electronic Cash Register Instruction Manual
What is recommended before using a new register for the first time?
It is recommended that each unit be allowed to recharge for a period of 24 to 48 hours prior to use.
From: Sharp ER-A410/ER-A420 Electronic Cash Register Instruction Manual