Ibt-Ii - Epson ColorPage EPL-C8000 Service Manual

EPSON EPL-C8000

2.5.9 IBT-II

1. 2nd BTR Assembly
The 2nd BTR Assembly consists of the following components:
n 2nd BTR
n 2nd BTR Cleaner
n Detach Saw (Charge Removable board)
(a) The 2nd BTR (Second Bias Transfer Roll) is a conductive roll. It
faces the Back Up Roll from outside the belt. (The IBT Belt
Assembly is in the middle.) The 2nd BTR induces the transfer
voltage from the voltage provided by the Back Up Roll and
transfers the toner image on the IBT Belt Assembly onto the
paper (2nd transfer).
(b) The 2nd BTR Cleaner is in contact with the 2nd BTR and
scrapes off the toner from the surface of the 2nd BTR. (The
scraped toner is collected in the toner chamber in the 2nd BTR
Assembly.)
(c) The Detach Saw (Charge Removal Plate) provides the charges
on the back of the paper and neutralizes/removes the charges
on the paper.
2. BTR Cam Solenoid
The BTR Cam Solenoid transfers the drive force from the P/H Motor
Assembly, via the P/H Drive Assembly, to the 2nd BTR Cam
Assembly, and controls the advance/retract movement of the 2nd
BTR Assembly. (Advance: The 2nd BTR Cleaner moves forward to
the IBT Belt Assembly; Retract: The 2nd BTR Cleaner moves away
from the IBT Belt Assembly.)
3. BELT Cleaner Assembly
The Belt Cleaner Assembly consists of the following components:
n Cleaning Blade
n Auger
Chapter 2 OPERATING PRINCIPLES
(a) The Cleaning Blade moves forward to the IBT Belt Assembly
after the 2nd transfer process and scrapes off the remaining
toner on the belt.
(b) The Auger transfers the scraped toner to the Auger High
Assembly.
(The Auger High Assembly transfers the toner to the Waste
Toner Box.)
Figure 2-34. IBT-II
Rev. B
2-34