Toshiba D-FC505-K Black Developer Unit – 210,000 Pages for e-STUDIO 2505AC–5005AC

Black Developer Assembly for e-STUDIO Colour Copiers

The Toshiba D-FC505-K developer is the black developer unit for the e-STUDIO FC505 colour copier family, supplied under part number 6LK49016300. It carries a 245 g developer charge and a rated life of approximately 210,000 pages at 5% coverage. The assembly replaces the K station developer when print density falls or background toning appears.

The unit fits the e-STUDIO 2505AC, 3005AC, 3505AC, 4505AC and 5005AC chassis. Toshiba also lists it for the 2515AC, 3015AC, 3515AC, 4515AC and 5015AC models, plus the 3508LP, 4508LP and 5008LP production derivatives. The black developer pairs with the T-FC505U-K toner cartridge, while separate cyan, magenta and yellow developers serve the colour stations.

The developer carries the two-component carrier mix that transfers toner to the photoconductor. A worn charge therefore shows as pale solids, uneven density across the sheet or a rising toner-to-carrier ratio. Swapping the complete developer housing restores the correct mix in one operation, without a manual carrier refresh.

Installation follows the standard developer removal path. Open the front door, release the developer latch, and withdraw the unit on its guide rails. Remove the sealing tape and the protective cover before seating the replacement. The machine runs an automatic developer setup cycle after power-on, which takes several minutes and calibrates the toner concentration.

Store the unit flat in its sealed bag and keep it away from magnetic fields. Do not invert the housing before fitment. Confirm the part number against the failed unit and check the copier model before ordering.

Key Features

• 210,000-Page Rated Life
  Toshiba rates the black developer at roughly 210,000 pages at 5% coverage.

• Complete Developer Housing
  The assembly ships pre-charged with carrier so no manual mix refresh is required.

• FC505 Series Fitment

  • e-STUDIO 2505AC, 3005AC, 3505AC, 4505AC and 5005AC
  • e-STUDIO 2515AC, 3015AC, 3515AC, 4515AC and 5015AC
  • e-STUDIO 3508LP, 4508LP and 5008LP

• 245 g Developer Charge
  The housing carries the correct carrier and toner ratio for the K station.

• T-FC505U-K Toner Pairing
  The developer is formulated for use with the matching black toner cartridge.

• Rail-Guided Replacement
  The housing slides out on chassis guides and locks with a single latch.

• Automatic Setup Cycle
  The copier calibrates toner concentration after the replacement unit is seated.

• Sealed Protective Packaging
  The unit ships bagged and taped to limit contamination before installation.

Specifications

What’s in the Box

• Black developer unit

• Protective cover and sealing tape

• Installation instructions

Why Choose This Developer Assembly

• The complete housing restores the carrier mix without a manual recharge procedure.

• A 210,000-page rating suits mid-volume colour departments on the FC505 chassis.

• One part number covers both the AC and LP machine variants, which simplifies spares holding.

• The pre-charged developer removes a weighing and mixing step from the service visit.

• Rail-guided fitment keeps the swap short and needs no special tooling.

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