Epson AcuLaser C1900, Service Manual

Page: 96 / 270

EPSON AcuLaser C1900/AcuLaser C900 Revision B
Operating Principles Image Stabilization Control 96
2.3.2 Engine Restrictions
TONER DUTY LIMIT VALUE
200% (to prevent from winding around the fuser unit)
NOTE: However, a hardware stop will not be forcibly performed when it exceeds
200% at the engine side.
FAN CONTROL
†
Rear Fan (Fan 1)
„
Reaching the full speed 20 seconds after start of printing
„
Slowing down to the half speed 15 seconds after completion of printing
„
Off during sleep mode
†
Sirocco Fan (Fan 2)
„
Turned on simultaneously with start of printing
„
Turned off 90 seconds after completion of printing
„
Off during sleep mode
FUSER CONTROL
†
Fuser roller modification prevention control
It prevents changing by passage of time.
1. The intermediate transfer belt rotate 4 times per holding the sleep mode for 14
days.
2. The intermediate transfer belt rotate 2 times per holding the standby mode for
13 hours.
†
Feed operation delay control of an envelope / Transparency
In the case that the inside temperature of printer is 28 and envelope is chosen as
paper type, the feed operation may be delayed by the fuser temperature around
that.
„
Delay time
Envelope: 0 ~ 80sec
Transparency: 0 ~ 44sec
Figure 2-4. Printing Start Delay Control for Envelope and Transparency
30sec
Delay time
(3) The feed operation
start of an envelope
and transparency.
(2)The temperature of a fuser
is detected and it decides on
the delay time of feeding.
Feed operation of printing of the
envelopes and transparency started
between 1 and 3 is from 3. If A seconds have
passed after front Job
is completed, there will
be no delay time.
A=envelope:110sec
A=transparency: 77sec
(1)The paper of the
last of pre-printing
was discharged.