Canon LBP6000 Series, Руководство по обслуживанию

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Chapter 2
2-29
F-2-38
2.6.1.2 Protective Functions
2.6.1.2.1 Power protective function
0019-7687
LBP3100 / LBP3010B
Low voltage power circuit carries the overcurrent preventive function against and overvoltage preventive function that block the voltage output automatically to
prevent the power circuit brokerage when the overcurrent or overvoltage occur due to load errors such as short circuit etc.
Thus, when the DC power cannot be output from the low voltage circuit, the protective function against overcurrent or overvoltage may be working. Turn OFF the
power switch (SW1) to fix load errors and turn ON the switch again (see note 1).
Also the circuit carries the 2 fuses (FU101, FU102) as a preventive function (see note 2). The fuses blow to block the power supply when overcurrent occurs in AC
line.
1. When restoring the low voltage power after protective function is activated, leave it for 2 minutes or more from turning off the switch or plugging out before turning
ON.
FU101
FREQSNS
+24V
+24V
+24V
+5V
+3.3V
+3.3V
SW502
+3.3V
+3.3VOFF
PWSV
24VOFF
FU201
(110-127V model only)
Engine controller
Low-voltage power supply
High-voltage
power supply
Fixing
control
Noise filter
Noise filter
Frequency detection circuit
(220-240V model only)
+24V
generation circuit
+5V
generation circuit
+3.3V
generation circuit
Protection
circuit
+24V
output switch circuit
+3.3V
output switch circuit
Hornet Plus/ Hornet Base/ Wasp only
CPU
SW501