1. Core Technical Features

　　Wide Voltage Adaptation

　　Mainstream products all support 9-24V DC wide-range power supply (some models cover 5-24V), with a peak current of up to 5A. They are suitable for complex power environments such as industrial equipment and self-service terminals, preventing shutdowns caused by voltage fluctuations.

　　Compact Embedded Design

　　The volume is generally controlled within 120×140×90mm, and some small-sized models can be reduced to 97.1×82.1×57.5mm. The installation opening size is mostly around 113×130mm, supporting front-loading/rear-loading paper structures, which is suitable for panel embedding of various devices.

　　Multiple Interfaces and Compatibility

　　Standard interfaces include RS232/TTL + USB, and high-end models add a 485 interface. They support Windows/Linux/Android systems as well as industrial control devices such as PLCs and Raspberry Pi, and can be directly connected to host systems like self-service terminals and medical instruments.

　　Printing Performance

　　Width: Two mainstream specifications – 58mm (with 48mm effective printing width) and 80mm (with 72mm effective printing width)

　　Speed: Adjustable from 50-90mm/s, meeting the demand for fast output of receipts/labels

　　Durability: Print head life ≥ 100km, and automatic cutter can achieve up to 1 million cuts

　　2. Classification of Main Specification Parameters

　　Models with 80mm Printing Width

　　Power Supply Voltage: 12-24V or 9-24V

　　Core Features: Support full-cut/half-cut switching, compatible with 80mm large paper rolls; some models have dual-mode printing functions for labels/receipts, and some are equipped with a 485 interface

　　Reference Price Range: CNY 600 - CNY 900 or USD 100 - USD 200

　　Models with 58mm Printing Width

　　Power Supply Voltage: 5-24V, 9-24V or 5-12V

　　Core Features: Equipped with automatic cutter, low-power design; some models support through-beam positioning (adjustable width: 20-55mm), and some are mini-sized with TTL communication support

　　Reference Price Range: CNY 400 - CNY 700, USD 35 - USD 75 or USD 13 - USD 20

　　3. Typical Application Scenarios

　　Self-Service Terminal Field

　　Ticket machines, payment terminals, queuing machines, etc. Wide-width models are compatible with kiosk devices, supporting fast receipt printing and automatic cutting.

　　Industrial and Medical Equipment Field

　　Testing instruments, medical monitors, etc. Narrow-width models adapt to industrial power supplies through 9-24V wide voltage, supporting real-time output of test reports.

　　Finance and Retail Field

　　ATM receipt printing, cash register terminals. These scenarios require high reliability (e.g., 1 million cuts of automatic cutter) and multi-language printing capability (GBK/Big5 character sets).

　　4. Core Dimensions for Model Selection

　　Matching Printing Specifications

　　Narrow-width receipts (58mm): Prioritize models suitable for small-sized devices

　　Wide-width documents (80mm): Prioritize models suitable for supermarket, financial and similar scenarios

　　Interface Requirements

　　For industrial equipment, prioritize models with a 485 interface; for ordinary terminals, models with basic USB + RS232 combination interfaces can be selected.

　　Installation Adaptation

　　Measure the installation opening size of the device panel. For example, some wide-width models require a reserved installation space of 113×130.4mm, with a depth ≥ 84.8mm.

　　Development Compatibility

　　When secondary development is needed, prioritize models that support PLC/single-chip microcomputer control.

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