Epson ColorPage EPL-C8000, Service Manual

Page: 132 / 545

EPSON EPL-C8000 Rev. B
Chapter 2 OPERATING PRINCIPLES 2-71
1. Oil Roll: Advance/Retract control
The Oil Roll advanced period is determined by the print count and
the waiting time (between print jobs) in the Ready mode. (The Oil
Roll advanced period is from when the Oil Roll starts advancing to
when the Oil Roll starts retracting.) The Oil Roll Assembly starts
advancing before the paper tip enters the Fuser Nip section (where
the Heat Roll and the Pressure Roll come into contact) and starts
retracting when the bottom of the paper passes the Fuser Nip
section.
NOTE: The advance time has been defined as follows:
Advance time = A + B
Where:
A: From the start of advancement to when the paper top enters
the Fuser.
B: From when the bottom of the paper passes the Fuser to the
end of retraction.
Figure 2-51. Advance Time
2. Emergencies
(a) Emergency stop
If the printer stops (shuts down) because of an emergency such
as a paper jam, the printer turns off the Oil Cam Solenoid.
(b) Operation after recovery from a paper jam (paper remains in the
Fuser)
The system advances the Oil Roll Assembly when the P/H Motor
Assembly is activated (restarted) after removing the jammed
paper. The advancing time is 15 seconds (maximum). The Oil
Roll stops advancing when the P/H Motor Assembly stops. In
the subsequent operation, the system executes a regular Oil
Roll advance/retract control from the next print job.
(c) Operation after recovery from a paper jam (no paper in the
Fuser)
The system executes a regular Oil Roll advance/retract control
from the next print job.