Xerox ColorQube 9303 Series, Service Manual

Page: 1775 / 1812

February 2013
8-81 ColorQube® 9303 Family
Principles of Operation
Transfix Stripper Blade
The transfix stripper blade removes adhered paper from the transfix roller and directs it to the
exit portion of the paper path. The stripper blade is attached to an aluminum extrusion using an
adhesive strip. These components, along with the adhesive, comprise the transfix stripper
assembly. The assembly is constrained in proximity to the transfix roller such that the blade is
always in contact with the roller surface.
Post Fix Transport
The post fix transport takes the printed sheets from the drum and delivers them to the output
transport. The post fix transport comprises the following components:
Post fix transport motor, M4 - A stepper motor, located at the rear of the post fix transport. The
motor turns in the forward direction to power the nips L and J, via a chain of gears. In the
reverse direction, this motor turns the eccentric cams that slide home the latching mechanism.
Refer to
Figure 34 .
Post fix sensor (#11) - A reflective sensor, located before nip J. It is the first sensor to detect the
marked sheet, freshly stripped from the drum. Refer to
Figure 34 .
Nip J - Driven by the post fix transport motor, M4. Nip J transports the sheet to the pre-exit sen-
sor, 12 and nip L. Refer to
Figure 34 .
Pre-exit sensor, (#12) - A reflective sensor, located just before nip L. The sensor detects the
sheets fed to nip L, and out to the output transport. Refer to
Figure 34 .
Nip L - The last nip in the post fix transport. Nip L transfers the sheets to the output transport
and is driven by the post fix transport motor, M4. Refer to
Figure 34 .
Stripper solenoid - A 48V solenoid, driven from the drum driver PWB. Before the solenoid is
actuated, a small gap is present between the stripper blade and the drum. When the solenoid
is actuated, the gap closes, and the stripper blade contacts the drum momentarily to catch the
leading edge of the sheet and strip it from the drum. Refer to
Figure 34 .
Latch sensor - A flag sensor, located at the front of the post fix transport. The sensor detects
the position of the front latch. A flag under the front latch actuates the sensor in the latched
position. This sensor is under the control of the drum driver PWB. Refer to
Figure 34 .
Jam clearance latches - Two latch forks, at the front and rear of the post fix transport, operated
by cams, driven by the post fix transport motor, M4. The latches prevent the jam clearance
guide opening during normal operation. Refer to
Figure 34 .
Jam clearance LEDs - An LED PWB is located between nip J and nip L. This PWB holds four
LEDs, to illuminate the jam clearance area. Refer to
Figure 34 .
Figure 34 Post fix transport components
REAR VIEW
Pre exit
sensor, 12 Front latch
cam
LED PWB
Front latch
fork
Latch
sensor
Blade
cover
Stripper
blade
Post fix
sensor, 11
Blade solenoid
Nip J
Jam clearance
damper
Nip L
Post fix transport
motor, M4