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 can be mainly categorized by their printing width, with two mainstream types available. For models with an 80mm printing width, the power supply voltage typically ranges from 12-24V or 9-24V; their core features include support for full-cut/half-cut switching, compatibility with 80mm large paper rolls, and some models even come with dual-mode printing functions for labels and receipts, as well as an additional 485 interface. The reference price range for this type of model is usually between CNY 600 - CNY 900 or USD 100 - USD 200.

　　For models with a 58mm printing width, the power supply voltage options are more flexible, covering 5-24V, 9-24V, or 5-12V. These models are often equipped with an automatic cutter and adopt a low-power design; some support through-beam positioning with an adjustable width range of 20-55mm, while others feature a mini-sized structure and support TTL communication. The reference price range for 58mm printing width models is generally 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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