Chapter 84 is the core chapter in HS classification covering machinery, mechanical appliances and their parts, including power machinery, agricultural machinery, office equipment, automatic data processing equipment, bearings, transmission devices, etc. This chapter emphasizes the mechanical properties and functions of goods, rather than materials or uses. Heading 8473, as a heading under it, specifically targets parts and accessories of office equipment (such as typewriters, computers, copiers, etc.), reflecting the basic principle of classifying parts according to the host machine. Heading 8473 covers parts and accessories suitable for use solely or principally with the machines of headings 8469 to 8472 (such as typewriters, word processing machines, computers, copiers, fax machines, etc.). It includes computer internal components (such as motherboards, power supplies, cooling modules), printer toner cartridges, copier paper feeders, etc. However, note that if the part itself constitutes a complete article of another heading, or is a general-purpose part (such as screws, springs), it is not classified under this heading. The first 2 digits 84 = chapter of machinery and mechanical appliances, covering all non-electrical mechanical devices. Digits 3-4, 73 = heading for parts of office equipment, specifically for parts dedicated to machines of headings 8469-8472. Digits 5-6, 40 = further subdivision, representing the "other" subheading, i.e., parts not named in 8473.10 to 8473.30. For example, 8473.10 is for typewriter parts, 8473.30 is for computer parts, while 8473.40 covers parts of copiers, fax machines and other equipment. Therefore 847340 specifically refers to parts of office equipment other than computers and typewriters, such as dedicated components of copiers and fax machines. This commodity is classified under 847340 rather than adjacent codes because it is dedicated to the office equipment of headings 8469-8472 and is not specifically named in other subheadings. If it were a computer part, it should be classified under 847330; typewriter parts under 847310. If it were a general-purpose electrical part, it would be classified under Chapter 85; general-purpose mechanical parts under other headings of Chapter 84. Therefore, only when it is clearly used for copiers, fax machines, etc. and is not a general-purpose part should it be classified under 847340.

Product Name: The standard name of the declared commodity, which should accurately reflect the function of the part, such as "copier paper feeder". Use: Clarify which office equipment the part is dedicated to, such as "dedicated to XX model copier". Material: The main constituent material, such as plastic, metal, rubber, etc., which affects classification. Brand: The manufacturer or brand, used to confirm the source of the part. Model: The part model, facilitating customs verification of specificity. Applicable Host Machine Model: The office equipment model to which the part applies, proving specificity. Working Principle: Briefly explain the function of the part in the equipment, such as "transports paper". Product Name: Copier paper feeder; Use: Dedicated to Canon iR-ADV C350 copier; Material: Plastic + metal; Brand: Canon; Model: FM1-D123; Applicable Host Machine Model: iR-ADV C350; Working Principle: Transports paper to the copying area via rollers. Misreporting computer parts as 847340, when they should actually be classified under 847330. Failing to provide the host machine model, unable to prove specificity, may be classified as general-purpose parts. Ignoring the material description; if it is a general-purpose metal part, it may be classified under Chapter 73.

The core basis for classification is the specificity of the part: it must be suitable for use solely or principally with the office equipment of headings 8469 to 8472, and cannot be a commodity specifically named in other headings. At the same time, general-purpose parts (such as screws, springs) and electrical parts (such as motors, circuit boards) must be excluded. If the part itself constitutes a complete machine, it is classified according to the complete machine. In addition, HS Explanatory Notes and classification decisions should be referred to. 847330 Computer parts: 847330 is dedicated to parts of computers (8471), such as motherboards, hard drives; while 847340 is for other office equipment such as copiers, fax machines. 847310 Typewriter parts: 847310 is only for typewriters (8469), while 847340 is for copiers, fax machines, etc. (8472). 844399 Printing machine parts: 844399 is for printing machines (8443), such as inkjet printers; 847340 is for office equipment such as copiers, with different functions. 850990 Parts of electro-mechanical domestic appliances: 850990 is for electro-mechanical domestic appliances; if the office equipment part is electrical and dedicated, it is still classified under 847340, but general-purpose motors are classified under 8501. 732690 Articles of iron or steel: If the part is a general-purpose article of iron or steel (such as a bracket), it may be classified under 732690; but dedicated parts are still classified under 847340. Is it dedicated to the office equipment of headings 8469-8472? Is it specifically named in other headings? Is it a general-purpose part (such as screws, springs)? Does it constitute a complete machine? Has the host machine model been provided to prove specificity?

How to determine whether a part is classified under 847340? First confirm that the part is dedicated to the office equipment of headings 8469-8472 (such as copiers, fax machines) and is not specifically named in other headings. Second, exclude general-purpose parts and electrical parts. Finally, provide the host machine model and use to prove specificity. If uncertain, refer to customs classification decisions or apply for advance classification. What is the difference between 847340 and 847330? 847330 is for dedicated parts of computers (8471), such as CPUs, memory; 847340 is for dedicated parts of other office equipment (such as copiers, fax machines). The key difference lies in the type of host machine: computers are classified under 8471, while copiers are classified under 8472. If a part can be used for both, it is classified according to its principal use. Which code should a copier toner cartridge be classified under? If a copier toner cartridge is dedicated to copiers and is not named in other headings, it should be classified under 847340. However, if the toner cartridge itself contains a photosensitive drum and toner, it may be classified according to material or function, requiring specific analysis. It is recommended to provide brand, model and host machine information. What are the most common errors when declaring office equipment parts? Common errors include: generally declaring as "office equipment parts" without specifying the specific equipment; failing to provide the host machine model, making it impossible to prove specificity; misreporting computer parts as 847340; ignoring the material description, leading to classification as general-purpose parts. It is recommended to fill in the declaration elements in detail and keep technical documents for reference. If the part is general-purpose, such as a screw, can it still be classified under 847340? No. General-purpose parts such as screws, springs, washers, etc., even if used in office equipment, should be classified according to material (e.g., iron or steel screws under 7318). 847340 only applies to parts suitable for use solely or principally with office equipment, and cannot be commodities specifically named in other headings. How to check the tariff rate for 847340? Tariff rates vary by country, trade agreement and year. It is recommended to obtain the latest tariff rates through customs official websites, tariff query systems, or by consulting customs brokers. Usually, the HS code and country of origin need to be provided to determine the applicable rate. Note that the General Administration of Customs of China website provides an online query tool. How to correctly use 847340 for cross-border e-commerce sales of office equipment parts? Cross-border e-commerce sellers need to ensure that the parts are dedicated to office equipment and provide detailed product name, use, and host machine model when declaring. For small parcels, customs may simplify declaration, but truthful declaration is still required. If the part is a computer accessory, 847330 should be used. It is recommended to understand the HS code rules of the target market in advance to avoid customs clearance delays. How to classify parts under 847340 if they are used for multiple devices? If a part can be used for multiple office equipment (such as copiers and printers), it is classified according to its principal use. If the principal use cannot be determined, refer to the General Rules for the Interpretation of the Harmonized System, or apply for advance classification. Usually, if the part plays a key role in a certain device, it is classified according to that device.