Development; Overview; Toner Supply; Development Unit - Gestetner G056 Service Manual

6.3.5 DEVELOPMENT

Overview

[A]: Toner tank
[B]: Agitator
[C]: Pre-doctor blade
[D]: Development roller
[E]: Drum
[F]: Doctor blade
[G]: Reverse roller
[H]: Developer tank

Toner Supply

• The agitator [B] stirs toner and carries it to the development roller.

Development Unit

• This machine uses a single-roller development system.
• The high voltage supply applies -700V to the development roller.
• When the developer seal is removed, developer drops and the magnetic reverse
roller [G] stirs and mixes the developer.
• This machine does not use a TD sensor or ID sensor to control toner density.
• The toner density is controlled by the pre-doctor blade [C] and the doctor blade
[F].
SM
[G]
[F]
[E]
[D]
6-11
PRINTING PROCESS
[H]
G058D104.WMF
[C]
G056/G058
[A]
[B]