Canon Print Head BH-40 Color For G2420/30 / G3420/30 Printers
Key Features
Brand: Canon
Product Name: Canon BH-40 Color Print Head
Compatibility:
Canon G2420
Canon G2430
Canon G3420
Canon G3430
Technology: Inkjet
Ink Flow Optimization: Prevents smudges and ensures consistent distribution
Canon Print Head BH-40 Color For G2420/30 / G3420/30 Printers
The Canon BH-40 Color Print Head is a genuine, field-replaceable unit designed to restore professional-quality color output for Canon PIXMA G-series MegaTank printers. It contains precision nozzle arrays for the balanced delivery of cyan, magenta, and yellow inks, ensuring consistent color accuracy and high-resolution performance up to 4800 x 1200 dpi.
Key Features and Performance
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- Vibrant Color Restoration: Specifically engineered to resolve issues such as streaks, banding, color inconsistencies, or fading caused by worn or clogged print heads
- Advanced Ink Distribution: Utilizes specialized technology for the balanced delivery of all three primary colors, maintaining sharp image definition across various media types
- Archival Reliability: Built to ensure professional results for high-impact presentations, brochures, and everyday documents that must remain durable.Â
- Estimated Lifespan: While not strictly rated by page count like ink cartridges, a functional BH-40 print head typically supports tens of thousands of printed pages depending on usage and maintenance routines.Â
Technical Specifications
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- Part Number: 3421C001 (often associated with BH-40 units).
- Colors Supported: Cyan, Magenta, Yellow.
- Technology: Thermal Inkjet.Â
Compatibility
The Canon BH-40 Color Print Head is designed for seamless integration with the following Canon MegaTank printers:
-
- PIXMA G-Series: G2420, G2430, G3420, G3430.
- Additional Models: G1420, G2460, G3460, G5040, G6040, G7040, GM2040, GM4040
Replacement and Maintenance Tips
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- Hassle-Free Installation: Designed for quick, tool-free replacement that typically takes under ten minutes.
- Critical Handling: Never touch the gold terminal plates or the nozzle face with fingers, as oils can cause malfunctioning or improper printing.Â
- Immediate Fitting: Protective tape and dust caps should only be removed at the exact moment of installation to prevent nozzle drying
- Alignment: After installation, it is recommended to run a head alignment routine from the printer’s control panel to ensure optimal output.Â
Our records indicate that you purchased a Canon PIXMA G2430 in March 2026, which is explicitly compatible with this BH-40 color print head. While you have not yet purchased replacement print heads for this specific machine, it is a recommended spare part to have on hand for when printing quality naturally declines after extended use

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