Brother DCP-C421W User Manual
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Product Safety Guide
Read this guide before attempting to operate the product, or before
attempting any maintenance. Failure to follow these instructions may result
in an increased risk of personal injury or damage to property, including
through fire, electrical shock, burns or suffocation. Brother shall not be liable
for damage caused where the product owner has failed to follow
instructions set out in this guide.
How to use this guide:
1. Read the whole guide before using your product. Keep the User's Guide
in a secure place for future reference.
2. Carefully follow the instructions set out in this guide and always ensure
that you follow all warnings and instructions marked on the product.
3. If you have concerns about how to use your product after reading this
guide, contact Brother customer service or your local Brother dealer.
4. To ensure you understand all of the instructions, study the Symbols and
Conventions used in the documentation.
5. CAUTION:
Before using this product, read carefully these instructions for correct
operation.
For more advanced instructions, information, and product specifications,
see the Online User's Guide at support.brother.com/manuals.
DCP-T220 / DCP-T226 / DCP-T420W / DCP-C421W / DCP-T425W /
DCP-T426W / DCP-T428W / DCP-T520W / DCP-T720DW /
15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan
DCP-T725DW / DCP-T820DW / MFC-T920DW
Brother Industries, Ltd.
1

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Summary of Contents for Brother DCP-C421W

  • Page 1 Failure to follow these instructions may result in an increased risk of personal injury or damage to property, including through fire, electrical shock, burns or suffocation. Brother shall not be liable for damage caused where the product owner has failed to follow instructions set out in this guide.
  • Page 2: Table Of Contents

    Connect the Product Safely............7 Use the Product Safely ..............9 Important Safety Instructions.............17 Product Warranty & Liability ............18 Trademarks ..................21 Open Source Licensing Remarks ..........21 Copyright and License..............21 Brother Customer Service ............21 Unlawful Use of Copying or Scanning Equipment (Products with scanning function only)............22...
  • Page 3: Symbols And Conventions Used In The Documentation

    Symbols and Conventions Used in the Documentation The following symbols and conventions are used throughout the documentation. Follow all warnings and instructions marked on the product. WARNING Fire Hazard icons alert you to the possibility of a fire. WARNING indicates a potentially Prohibition icons indicate hazardous situation which, if not actions that must not be...
  • Page 4: Compilation And Publication Notice

    Brother ink bottle with this product or the refilling of empty ink tank with ink from other sources. If damage is caused to the print head or other...
  • Page 5: Choose A Safe Location For Your Product

    Choose a Safe Location for Your Product WARNING Choose a location where the temperature remains between 10°C and 35°C, the humidity is between 20% and 80%, and where there is no condensation. DO NOT expose the product to direct sunlight, excessive heat, open flames, corrosive gasses, moisture, or dust.
  • Page 6 Doing so may cause ink spillage and internal damage to the product. • DO NOT place your product next to sources of interference, such as speakers or the base units of non-Brother cordless telephones. Doing so may interfere with the operation of the product's electronic...
  • Page 7: Connect The Product Safely

    • DO NOT place anything in front of the product that will block received faxes (MFC models only) or printed pages. Connect the Product Safely WARNING ELECTRICAL HAZARDS Failure to follow the warnings in this section may create the risk of an electrical shock.
  • Page 8 DO NOT attempt to service this product yourself. Opening or removing covers may expose you to dangerous voltage points and other risks and may void your warranty. Refer all servicing to Brother customer service or your local Brother dealer. DO NOT drop any metal objects or any type of liquid on the power plug...
  • Page 9: Use The Product Safely

    If the product has been dropped or the casing has been damaged, there may be the possibility of an electrical shock. Unplug the product from the electrical socket and contact Brother customer service or your local Brother dealer. DO NOT use this product during a thunderstorm. There may be a...
  • Page 10 FIRE HAZARDS Failure to follow the warnings in this section may create the risk of a fire. DO NOT use flammable substances, any type of spray, or an organic solvent/liquid containing alcohol or ammonia to clean the inside or outside of the product. Doing so could cause a fire. Instead, use only a dry, lint-free cloth.
  • Page 11 If the product becomes unusually hot, releases smoke, generates any strong smells, or if you accidentally spill any liquid on it, immediately unplug the product from the electrical socket. Contact Brother customer service or your local Brother dealer. Plastic bags are used in the packing of this product. Plastic bags are not toys.
  • Page 12 Installation must be performed correctly according to the Quick Setup Guide. • Brother strongly recommends that you DO NOT use any type of extension cord. • This product should be positioned so that nothing pinches or constricts the power cord.
  • Page 13 CAUTION Wait until pages have exited the product before picking them up. Failure to do this may cause injury to your fingers by trapping them inside the machine. To prevent injuries, be careful not to put your fingers in the areas shown in the illustrations.
  • Page 14 DO NOT touch the edges of the metal parts behind the rollers in the grey shaded area shown in the illustration. These parts have sharp edges and touching the metal parts behind the rollers may cut your fingers or otherwise injure them. DO NOT carry the product by holding the scanner cover (some models only), the Jam Clear Cover, the manual feed slot cover (some models only), or the control panel.
  • Page 15 Only carry the machine by placing your hands under the entire machine. When multiple devices, including this product, are connected to a computer using USB cables, you may feel an electric charge when you touch metal parts of the product. Storage of Ink Bottles: •...
  • Page 16 If the ink contacts your skin or gets into your eye or mouth, follow these steps immediately: • If your skin comes into contact with the ink, wash your skin with water and soap immediately. • If the ink gets into your eye, rinse it with water, and consult your doctor immediately.
  • Page 17: Important Safety Instructions

    • DO NOT put any foreign objects into the ink tank. Doing this may cause the product to malfunction. Important Safety Instructions 1. Read all of these instructions. 2. Save them for later reference. 3. Follow all warnings and instructions marked on the product. 4.
  • Page 18: Product Warranty & Liability

    Please refer all servicing to our Authorized Service Personnel, or you may contact the Brother Dealer for Service. 16. Unplug this product from the wall outlet and refer servicing to Authorized Service Personnel under the following conditions: •...
  • Page 19 the safety instructions in this guide may invalidate your product’s warranty. WARNING DO NOT use this product near water, for example, near a bath tub, wash bowl, kitchen sink or washing machine, in a wet basement or near a swimming pool. Avoid using this product during a thunderstorm.
  • Page 20 • Maximum power spectral density: ≤ 10 dBm / MHz (EIRP) • Carrier frequency tolerance: 20 ppm • Out-of-band emission power (Outside the 2.4 to 2.4835 GHz frequency band) ≤ -80 dBm / Hz (EIRP) • Spurious emission (radiation) power (Outside the range of the corresponding carrier ±...
  • Page 21: Trademarks

    Software License Agreement specific to its proprietary programs. Any trade names and product names of companies appearing on Brother products, related documents and any other materials are all trademarks or registered trademarks of those respective companies. Open Source Licensing Remarks This product includes open-source software.
  • Page 22: Unlawful Use Of Copying Or Scanning Equipment (Products With Scanning Function Only)

    Service Centre Locations For service centres in your country, contact your local Brother Office. Address and telephone contact information for local offices can be found at support.brother.com by selecting your region and country. Unlawful Use of Copying or Scanning Equipment (Products with scanning...
  • Page 23 These machines are approved for use in the country of purchase only. Local Brother companies or their dealers will support only machines purchased in their own countries. Month of publication: 02/2022 CHN-ENG Version B...

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