Sharp ER-A420 Flat Keyboard Cash Register (ER-A420)

The Sharp ER-A420 is an advanced, commercial-grade electronic cash register engineered specifically for restaurants, bars, quick-service food venues, and specialty retail stores requiring high operational speed and liquid-spill protection. Built around a 119-key spill-proof flat keyboard, it allows operators to assign expansive menu items for one-touch ring-ups. Featuring a high-speed 2-station thermal printer with custom logo capability, 99 departments, 1,500 PLUs (with UPC learning functions), and Open Guest Check tracking, the ER-A420 delivers robust hospitality features and peripheral expansion in a durable metal-drawer frame.

Key Features

• Spill-Resistant 119-Key Flat Membrane Keyboard: Micro-motion, splash-proof flat keypad protects internal components from accidental liquid spills while enabling custom menu key layouts across 3 menu levels.

• Dual-Station Thermal Printer & Custom Graphics: High-speed twin thermal printer simultaneously issues customer receipts with graphic store logos and maintains a continuous hard-copy internal journal.

• Open Guest Checks & Advanced Hospitality Features: Full hospitality suite including Open Guest Check tracking, Previous Balance Look-Up, Bottle Return handling, and 10 Mix & Match discount tables.

• 1,500 PLUs/UPCs & 99 Departments: Organize store inventory across 99 pre-programmed department categories and program up to 1,500 Price Lookups (PLUs) across 2 pricing levels, featuring an integrated UPC Learning Function.

• Dual RS-232 Serial COM Ports: Two built-in RS-232 serial interfaces enable seamless connection to barcode scanners, digital weight scales, automatic coin dispensers, remote kitchen printers, and credit card terminals.

• PC-Link SD Card Programming Utility: Effortlessly program PLUs, department pricing, clerk settings, and custom receipt logo graphics offline via PC software using an SD card.

• 2-Line Alphanumeric Operator LCD: Clear 2-line alphanumeric LCD operator screen paired with an integrated customer display for transaction accuracy and simple menu-driven programming.

• Heavy-Duty Steel Cash Drawer: Full-size commercial metal cash box equipped with a 5-bill / 5-coin removable insert tray and mandatory Cash/Check drawer declaration controls.

Technical Specifications