289
R E P 1 6 5 0
Model Name:
RJ–4100
R E P 1 6 5 0
Model Name:
RJ–4100
How to Check the Power Supply Voltages/24 V DC and 42 V DC
How to Check the Power Supply Voltages/24 V DC and 42 V DC
24 V DC Check
1. Turn off the power switch and open the Control Box.
(The power cable may remain connected.)
2. With Power Board connector J003 disconnected, turn on the Power Switch and check that
+24 V ±0.5 V is being output between pins 4 and 3 of J003.
If not, take the following steps to identify the cause:
→
Go to REP1630 (How to Check the Power Supply Voltages/100 V AC or 200 V AC)
→
If the 100 V AC or 200 V AC check is normal and there is no +24 V output, replace the
Power Board.
3. Turn off the power supply momentarily to restore the J003 connector to the Power Board.
Turn on the Power Switch and check that +24 V ±0.5 V is being output between pins 4
(GND) and 3 of J100 on the Main Board.
If not, take the following steps to identify the cause:
→
Turn off the power supply momentarily to disconnect J114 (HEAD1) and J115 (HEAD2)
from the Main Board and check again.
If this is successful, either the Head Board or the Print Head Assembly or the Y Cable
Assembly or the Head Cable Assembly or the Origin Sensor Assembly or the Paper
Sensor Assembly is faulty.
→
Turn off the power supply momentarily to disconnect J119 from the Main Board and
check again.
If this is successful, the Y Motor Assembly is faulty.
→
Turn off the power supply momentarily to disconnect J120 from the Main Board and
check again.
If this is successful, the X Motor Assembly is faulty.
→
Turn off the power supply momentarily to disconnect J116 (FAN1) from the Main Board
and check again.
If this is successful, either the Fan Assembly or Fan Cable 1 is faulty.
→
Turn off the power supply momentarily to disconnect J117 (FAN2) from the Main Board
and check again.
If this is successful, either the Fan Assembly or Fan Cable 2 is faulty.
→
Turn off the power supply momentarily to disconnect J118 (FAN3) from the Main Board
and check again.
If this is successful, either the Fan Assembly or Fan Cable 3 is faulty.
4. If there is still no ±24 V output with all the above connectors disconnected,
→
Replace the DC Cable Assembly
→
Replace the Main Board.
42 V DC Check
1. Turn off the power switch and open the Control Box.
(The power cable may remain connected.)
2. With Power Board connector J003 disconnected, turn on the Power Switch and check that
+42 V ±0.5 V is being output between pins 10 and 11 of J003.
If not, take the following steps to identify the cause:
→
Go to REP1630 (How to Check the Power Supply Voltages/100 V AC or 200 V AC)
→
If the 100 V AC or 200 V AC check is normal and there is no +42 V output, replace the
Power Board.
3. Turn off the power supply momentarily to restore the J003 connector to the Power Board.
Turn on the Power Switch and check that +42 V ±0.5 V is being output between pins 10
(GND) and 11 of J100 on the Main Board.
If not, take the following steps to identify the cause:
→
Turn off the power supply momentarily to disconnect J103 (PUMP) from the Main Board
and check again.
If this is successful, the Pump Assembly is faulty.
→
Turn off the power supply momentarily to disconnect J207 (Head Black) from the Head
Board and check again.
If this is successful, either the Print Head Black Assembly or the Head Cable Black
Assembly is faulty.
→
Turn off the power supply momentarily to disconnect J208 (Head Color) from the Head
Board and check again.
If this is successful, either the Print Head Color Assembly or the Head Cable Color
Assembly is faulty.
→
Turn off the power supply momentarily to restore connectors J207 and J208 and discon-
nect J114 and J115 (Y Cable Assembly) from the Main Board and check again.
If this is successful, either the Head Board or the Y Cable Assembly is faulty.
4. If there is still no +42 V output with all the above connectors disconnected,
→
Replace the DC Cable Assembly
→
Replace the Main Board.