HP LaserJet 4L - DC Controller;Power System

Functional Overview
DC Controller/Power System
●
DC Controller/Power System
The DC Controller PCA is responsible for coordinating all print
engine activities. The DC Controller drives the laser, coordinating
a
print data from the Formatter PCA with the image formation
process. The DC Controller shares machine status information
with the Formatter PCA so that proper diagnostic messages are
displayed. The DC Controller also provides both ac and dc power
supply and distribution circuitry. Figure 5-2 shows the various DC
Controller loads.
El
Font
Cartridge
(4P Only)
Fogn#er
F
—
DC Controller PCA
L
d
CPU
Sensors
and
Solenoids
P
DC Power Supply
Ir—————l
Y
AC Power Supply
17gwe5-2
IX CofitrollerLoads
b
Laser/Scanner
Assemb
Laser
Diode
I
I 1
u
Fan
Motor
i
Main Motor
+lTransfer Rollerl
m
5-3