Canon BH-4 Black Print Head

Thermal Inkjet Engineering

The BH-4 employs sophisticated thermal bubble formation to propel black ink droplets from microscopic nozzles with exceptional precision. Heat elements activate within microseconds, creating controlled vapor bubbles that force ink through precisely calibrated orifices. Additionally, the thermal process ensures uniform droplet size and placement accuracy for sharp text definition.

Monochrome-Optimized Architecture

Canon designed the BH-4 specifically for black ink applications with dedicated nozzle arrays totaling 512 individual firing points. Each nozzle operates independently to deliver consistent droplet formation and placement accuracy. Furthermore, the monochrome design eliminates color contamination concerns while maximizing black ink flow efficiency.

Nozzle Configuration System

The print head features 512 nozzles arranged in linear formations optimized for text and line art reproduction. Nozzle diameter measures 22 micrometers for optimal black ink droplet formation characteristics. Moreover, the precision nozzle placement enables smooth line transitions and detailed graphic reproduction.

Drop Volume Control

Each BH-4 nozzle produces droplets measuring 1.5 picoliters with ±3% volume consistency. This precision enables detailed text reproduction and smooth gradient rendering capabilities. Consequently, documents and graphics maintain professional clarity throughout the print head’s operational lifespan.

Thermal Management Technology

The BH-4 incorporates advanced thermal regulation circuitry to prevent overheating during intensive monochrome printing sessions. Temperature sensors monitor heat buildup across nozzle arrays continuously. Additionally, the cooling system maintains optimal operating temperatures between 68°F and 86°F for consistent performance.

Installation Interface

The print head connects through a 38-pin electrical interface providing power and data transmission for monochrome operations. Gold-plated contacts ensure reliable electrical connection throughout repeated installation cycles. Furthermore, the BH-4 features precision alignment guides for accurate positioning within compatible printer mechanisms.

Maintenance Protocols

Regular cleaning cycles preserve BH-4 nozzle functionality and prevent black ink accumulation. Automated purge sequences remove dried ink particles from nozzle openings effectively. Subsequently, these maintenance routines extend print head lifespan and maintain consistent monochrome output quality.

Performance Optimization

The BH-4 achieves optimal performance when paired with genuine Canon black ink formulations specifically designed for thermal inkjet systems. Ink viscosity specifications ensure proper droplet formation and nozzle longevity. Therefore, using compatible black ink types maximizes print head operational lifespan and output consistency.

Ideal Users

The Canon BH-4 Black Print Head serves specialized monochrome printing applications:

• Document processing centers – High-volume text printing facilities benefit from 512-nozzle throughput capacity and 1.5-picoliter precision for professional document quality
• Legal document services – Law firms printing contracts and legal documents utilize precise black reproduction for clear text definition and archival quality
• Technical drawing departments – Engineering offices producing blueprints and schematics depend on consistent line quality and detailed reproduction capabilities
• Educational institutions – Schools and universities printing textbooks and educational materials leverage reliable monochrome printing for cost-effective operations
• Financial services – Banking and accounting firms require precise text reproduction for statements and financial documents with regulatory compliance standards

Text Quality Excellence

The BH-4 delivers exceptional text clarity through optimized droplet placement and consistent ink density. Character edges remain sharp without feathering or bleeding on compatible paper types. Additionally, the print head maintains uniform text darkness across entire document pages.

Operational Reliability

The BH-4 provides consistent performance throughout extended printing sessions without quality degradation. The thermal management system prevents performance variations during intensive use periods. Moreover, the robust construction withstands commercial printing environment demands.

Economic Benefits

Each BH-4 print head provides extended operational life that reduces replacement costs for high-volume monochrome printing operations. The dedicated black ink design eliminates waste associated with color cartridge systems. Furthermore, the precision engineering minimizes maintenance requirements and associated downtime costs.

Physical Specifications

• Dimensions: 4.2 x 1.1 x 0.7 inches
• Weight: 0.5 ounces
• Nozzle count: 512 total black ink nozzles
• Nozzle diameter: 22 micrometers
• Contact interface: 38-pin gold-plated connector

Performance Characteristics

• Drop volume: 1.5 picoliters ±3% tolerance
• Firing frequency: 42 kHz maximum
• Operating temperature: 68°F to 86°F (20°C to 30°C)
• Resolution capability: 4800 x 1200 dpi
• Ink channel: Single black ink pathway

Electrical Requirements

• Operating voltage: 24V ±5% DC
• Power consumption: 12 watts maximum
• Interface type: Parallel data transmission
• Signal frequency: 22 MHz clock rate
• Standby current: 40 mA

Compatibility Information

• Compatible models: PIXMA Pro-10, Pro-9000 Mark II series
• Part number: BH-4
• Installation type: User-replaceable component
• Replacement indicator: Automatic detection system
• Shelf life: 18 months in original packaging

Quality Certifications

• Manufacturing standard: ISO 9001 compliance
• RoHS environmental certification
• Electromagnetic compatibility: CE marking
• Operating altitude: Sea level to 3,000 meters
• Vibration resistance: 0.4G acceleration tolerance