EN
Power Supply System
5-3
Power Supply System
AC/DC Power Distribution
The AC line voltage for the printer is applied through the main switch
(SW101) and supplied to the low-voltage power supply circuit through
the fuse (FU1). The low-voltage power supply divides the AC voltage
to +24 VDC, +5 VDC and +3.4 VDC and supplies them to the DC
controller PCA. This circuit generates a zero-cross signal (ZEROX)
and supplies it to the DC controller PCA.
+3.4 VDC is supplied to ICs on the DC controller PCA and the BD
PCA. +5 VDC is supplied to the laser driver PCA and sensors.
+24 VDC is supplied to the high-voltage power supply PCA to drive
the main motor, the exhaust fan, the scanner motor, the clutches, and
the solenoids.
+24 VDC is divided into +24 Vdr, which stops when the top cover is
opened and SW401 on the terminal PCA turns off, and _24V, which is
always supplied regardless of whether SW401 turns on or off.
