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November 2003 © TOSHIBA TEC 12 - 1 e-STUDIO3511/4511 DEVELOPER UNIT
12
12. DEVELOPER UNIT
12.1 General Description
In this equipment, the three color developers (Y, M and C) are installed in the revolver unit and the black
developer is installed independently separated from the revolver unit. This special structure ensures the
improved printing productivity at the Black Mode. When developing color images (Y, M or C), the black
developer unit escapes contacting with the drum. When developing black images, each color developer
unit escapes from the drum by rotating the revolver and the black developer unit contacts with the drum
instead.
The developer motor drives the lifting movement and magnet roller rotation of the black developer unit,
and also the toner supply and magnet roller rotation of the color developer unit. Chapter 9 in this manual
describes more.
12.2 Construction
• Black toner cartridge drive unit
• Developer motor drive unit Black developer unit Developer material
Mixer unit
Developer sleeve (magnetic roller)
Doctor blade
Black auto-toner sensor
Black developer unit lifting mechanism
Color developer unit Developer material
Mixer unit
Developer sleeve (magnetic roller)
Doctor blade
Color developer toner supply auger
• Color auto-toner sensor