Founder D820I Tax Control Cash Register User Manual

User manual for the Founder D820I tax‑control cash register, covering installation, operation, initialization and troubleshooting.


Founder D820I Tax Control Cash Register User Manual - cover page
Brand
FOUNDER
Document type
User Manual
Language
Chinese
Pages
21
File format
PDF
File size
384 KB
Updated
06 October, 2026
MD5 checksum
7B2940383489582861BBD35C2D65B26B

About this manual

The Founder D820I tax‑control cash register is designed for small‑to‑medium retail, catering and service businesses that use 76 mm or 57 mm roll invoices. The manual provides step‑by‑step instructions for installing the device, configuring tax settings, and operating the built‑in printer.

Key functions include employee login, invoice issuance, refund and void processing, report printing, and hardware diagnostics. Safety guidelines, warranty information, and troubleshooting tips are also included to ensure reliable operation. This manual is written in Chinese.

What's inside

  • Basic Operation
  • Employee Login / Logout
  • Machine Initialization
  • Department Initialization
  • Invoice Issuance and Refund
  • Report Printing
  • Hardware Detection
  • Battery Replacement
  • Safety and Warranty

Specifications

Input / DisplayFull Chinese input and display
Operator ManagementPassword‑based permission control
PrinterBuilt‑in micro printer
Supported Invoice Types76 mm or 57 mm roll invoices with anti‑counterfeit code
BatteryLithium battery; replacement must use specified model

Frequently asked questions

How do I initialize the D820I cash register?

Press the Function key, select “Initialization”, follow the prompts to set the date and time, and choose whether to print the initialization report.

What invoice sizes can the D820I print?

It can print tax‑control roll invoices of 76 mm or 57 mm width, each with an anti‑counterfeit code.

How should the battery be replaced?

Use only the specified lithium battery model; using an incorrect battery may cause explosion. Contact Founder or an authorized dealer for replacement.

How can I run hardware diagnostics on the device?

Enter the hardware detection menu via the Function key, then select tests such as printer, clock, card reader, cash drawer, etc., to perform checks and print results.

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