Toshiba e-STUDIO2500c Service Manual page 236

8) Ozone exhaust fan (M24)
This fan exhausts air through the ozone filter-1.
9) High-voltage transformer (HVT)
A circuit generates the output control voltage Vc of the main charger bias, main charger grid bias,
1st transfer roller bias, 2nd transfer roller bias, developer bias and cleaning blade bias.
10)Drum motor (M10)
This motor drives each drum and toner recovery auger. The drive of the motor is transmitted to each
drum by gears in the following 2 lines: Drum motor → K drum, drum motor → C drum → M drum →
Y drum
The gears and drum couplings are assembled with high precision in order to improve accuracy of
color overlay.
11)Drum switching motor (M11)
This motor switches ON/OFF the transmission of drive to the Y, M, C drums. When the motor rotates
normally or reversely, the gear of the motor moves the rack to shift the guides. And this movement of
the guides controls the transmission of the drive by engaging and disengaging gears which transmit
the drive to the Y, M, C drums. Additionally, the drum switching sensor detects the phase of the
guide to control the drum switching motor, and checks whether the drive is transmitted to the Y, M, C
drums or not.
12)Toner bag
This collects the residual toner scraped off on the drum surface by the cleaning blade and residual
toner scraped off on the transfer belt by the transfer belt cleaning blade.
13)Toner bag full detection sensor (S13)
This transmissive-type sensor detects the full of toner bag when the used toner has reached to the
full detection position in the toner bag. Printing is interrupted upon the detection of "Toner bag full"
status, however, the paper already fed is subject to be printed and exited.
e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION
11 - 4
May 2006 © TOSHIBA TEC