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1159SBM1200A
Wea OPTICAL SECTION
As the Scanner is moved by Scanner Motor M65, the light from Exposure Lamp LA1
is reflected off the original and guided through the Six Mirrors onto the surface of
the PC Drum to form the electrostatic latent image.
The image is enlarged or reduced as necessary by moving the Lens and mirrors
(EP1031/EP1031 F only).
Scanner Motor M5
4th/Sth Mirrors
Lens
Apr
Carriage
2nd/3rd Mirrors
Carriage
6th Mirror
AE Sensor
FY}
Scanner
11SSMOSSAA
M-24
1159SBM1201A
12-1. Exposure Lamp LA'
An AC halogen lamp is used as Exposure Lamp LA1,
As the exposure level is adjusted on the control panel, the delay time from the
zero-cross signal of the AVR Trigger signal from PWB-A changes to increase or
decrease the LA1 voltage, thereby changing the image density.
[Manual EXP Setting | 9 | 8 [7 | 6 | 5 | 4 | 3 | 2 |! |
El 3 | 5
Ee
tet [+ [= fo
Scan drive
Scan
Return
Scan
Return
2
Transport Roller
;
Sensor PC51
Oe
eee?
eee
a i
Scan home dq
Exposure Lamp ON aaa
ee) Saas
ae
LA1
OFF
1159TIIMCA
[contro
Signal [on [OFF [wiring DIAGRAM |
AVR Trigger | owe.A PUTA
L
H
7-B
Signal (LA1)
M-25
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