Toshiba 6LJ76587000 GEAR-DEV-IDLER Developer Unit Idler Gear

Developer Unit Idler Gear for e-STUDIO Copiers

The Toshiba developer idler gear is the OEM replacement pinion that carries drive from the developer drive train to the mixing and magnetic roller gears. It seats inside the developer assembly on the e-STUDIO 2006, 2506, 2505 and 2307 families. Toshiba lists the part under code 6LJ76587000 and the assembly description GEAR-DEV-IDLER.

The part weighs about 3 g and ships in a 0.16 kg carton with 0.0004 m³ gross volume. Moulded polymer teeth run against the adjacent GEAR-MIXER-1 and GEAR-RLR-MAGT pinions in the same housing. A worn idler shows as uneven toner density, gear noise or a developer unit that stalls under load.

Fitment calls for removing the developer unit from the chassis and lifting the rear gear cover. The idler presses onto its shaft and meshes with the neighbouring pinions without shimming. Inspect the mating gears for worn teeth at the same time, since a failed pinion often damages its neighbours.

Compatibility covers the e-STUDIO 2505, 2505H, 2505F, 2006, 2007, 2307, 2507, 2323AM, 2329A, 2523A, 2523AD, 2823AM and 2829A. Keep one on the shelf for maintenance contracts that cover mixed e-STUDIO fleets.

Key Features

• OEM Gear Code 6LJ76587000
  The number cross-references to the GEAR-DEV-IDLER position in the developer parts list.

• Developer Drive Train Position
  The pinion transfers rotation between the mixer gears and the magnetic roller drive.

• Moulded Polymer Construction
  The tooth profile is formed in one piece for consistent meshing across the service life.

• Press-Fit Shaft Mounting

  • Seats on the idler shaft without retaining clips
  • No shimming or backlash adjustment at assembly
  • Removes with a standard gear puller

• Light Shipping Weight
  A 3 g part in a 0.16 kg carton keeps courier and stock handling straightforward.

• Wide e-STUDIO Coverage
  One part number serves the 2006, 2307, 2505 and 2829A developer units.

Specifications

What’s in the Box

• 1 x GEAR-DEV-IDLER pinion, part 6LJ76587000

Why Choose This Pinion

• Restores drive to a developer unit that has stopped mixing toner evenly.

• One part number covers several e-STUDIO generations in mixed fleets.

• Press-fit mounting keeps the repair inside a single service visit.

• The OEM code removes ambiguity when ordering from a printed parts list.

• Low unit weight keeps spares kits light for field engineers.

• Replacing the pinion early prevents damage to the mixer and roller gears.

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