Toshiba D-FC30-Y Yellow Developer 6LJ70994000 56,000 Pages

Yellow developer charge for e-STUDIO colour engines

Toshiba D-FC30-Y developer is the yellow developer material specified for Toshiba e-STUDIO colour multifunction printers. It replenishes the magnetic carrier in the developer unit and restores image density across the yellow station. The sealed container holds approximately 250 g of ferrite-based developer.

Ferrite content exceeds 90 percent of the mixture, with polyester resin below 10 percent. Organic pigment sits between 0.1 and 1 percent, and amorphous silica adds flow control at the same concentration. The ferrite carrier carries the toner charge through the development gap, so worn carrier degrades density and background control.

Page yield reaches 56,000 prints at 5 percent average coverage on the e-STUDIO 2050C and 2051C. The 2550C and 2551C series extend yield to about 70,000 prints, and AC-series models run higher still. Yield depends on coverage, media size and the colour balance of each job.

Compatible chassis include the e-STUDIO 2050C, 2051C, 2550C, 2551C, 2000AC, 2010AC, 2500AC, 2510AC, 2520AC, 2555CSE, 3055CSE, 3555CSE, 4555C and 5055C. The OEM code 6LJ70994000 cross-references 6LJ70384000, D-FC30-Y and DFC30Y. Confirm the station colour before ordering, because cyan, magenta and black use different developer charges.

Replace the developer charge when density falls, background rises, or the machine reaches its developer life counter. The technician drains the old material from the developer unit, refills with the specified charge, and runs the setup cycle. Store the sealed container upright in a dry place away from direct sunlight. Avoid inhaling dust and work in a ventilated area.

Key Features

• Ferrite carrier base above 90 percent
  The ferrite fraction carries toner charge through the development gap and holds density stable across the station.

• OEM yellow developer charge
  The formulation matches Toshiba charge specifications for the yellow developer unit.

• 56,000-page yield at 5 percent coverage

  • 56,000 prints on e-STUDIO 2050C and 2051C
  • About 70,000 prints on 2550C and 2551C
  • Higher yields on AC-series chassis

• Multi-model compatibility
  The charge fits 2050C, 2051C, 2550C, 2551C, 2000AC, 2010AC, 2500AC, 2510AC, 2520AC, 2555CSE, 3055CSE, 3555CSE, 4555C and 5055C models.

• Sealed 250 g container
  The sealed pack protects the ferrite mixture from moisture before installation.

• Density and background recovery
  Replacing worn carrier restores image density and reduces background on the yellow station.

• Cross-reference identification
  The part cross-references 6LJ70384000, D-FC30-Y and DFC30Y for stock checks.

Specifications

What’s in the Box

• One sealed container of yellow developer material

Why Choose This Developer Charge

• The OEM formulation matches Toshiba charge specifications for consistent density on the yellow station.

• A ferrite carrier base above 90 percent supports stable toner charging across the developer life.

• One container covers a full service interval at rated coverage on supported chassis.

• Cross-referenced part codes simplify stock identification and ordering checks.

• Sealed packaging protects the mixture from moisture before the technician opens it.

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