PUMP:TONER SUPPLY UNIT:M:SUB-A

In a busy office print room, the Ricoh B1803357 toner supply unit keeps laser printers and copiers running without interruption. This sub-assembly pump, part of the M series, delivers dry powder toner from the cartridge to the development unit with precise controlled feed. The auger mechanism ensures consistent toner flow, preventing clogs and maintaining print quality across high-volume jobs. Technicians rely on this component for reliable replacement in compatible Ricoh devices, restoring performance with minimal downtime.

Key specifications

• Product type: Toner dispensing pump
• Sub-assembly identifier: SUB-A
• Part of unit series: M Series
• Input voltage: DC 24V
• Rated current: 0.5 A
• Pump mechanism: Auger/screw feed for dry powder
• Toner compatibility: Dry powder toner
• Electrical connection: Multi-pin connector
• Mounting type: 4-screw panel mount
• Operating temperature range: 10°C to 35°C (50°F to 95°F)
• Operating humidity range: 20% to 80% RH (non-condensing)
• Expected lifespan: 100,000 cycles or 5,000 operating hours
• Material construction: ABS plastic, stainless steel
• Noise level: < 50 dB (at 1 meter)
• Color: Black/Grey

Why choose it

This toner supply unit is built for durability and consistent output. The stainless steel auger resists wear, while the ABS housing protects internal components from toner contamination. Its controlled feed mechanism minimizes toner waste and ensures even distribution, reducing the need for frequent maintenance. Designed as a direct replacement for specific OEM toner supply units, it restores original print quality and extends the life of your printing equipment.

Ideal use cases

• Replacement in Ricoh laser printers and copiers requiring a toner supply pump
• High-volume office environments where reliable toner delivery is critical
• Service technicians performing routine maintenance or repairs
• Refurbishment of used printing equipment to like-new performance

Good to know

Installation requires basic technical skills and should be performed by qualified personnel. The pump operates quietly at under 50 dB, making it suitable for shared workspaces. Its 4-screw panel mount ensures secure attachment, and the multi-pin connector allows for straightforward electrical integration. Always verify compatibility with your specific printer model before ordering.