Kyocera ECOSYS P2235dw Service Manual page 288

C4201: Laser error
Laser cannot be received for 1s after starting laser emission.
Step Check description
1 Checking the connection
2 Checking the LSU
3 Replacing the main/engine
PWB
C6000: Broken fuser heater
1. During warm-up, the temperature detected by the thermopile does not reach 100°C/212°F even if the fuser
heater is turned on for 10s consecutively. 2. During warm-up, the temperature detected by the thermopile
does not reach Ready temperature even passing 30s after the temperature detected by the thermopile
reached 60°C/140°F.
Step Check description
1 Removing a piece of paper A piece of paper resides in
2 Checking the connection
3 Replacing the fuser unit
4 Replacing the low voltage
PWB.
5 Replacing the main/engine
PWB
Assumed cause
The FFC terminal is not
properly connected or
faulty.
The laser diode is faulty.
The main/engine PWB is
faulty.
Assumed cause
the fuser unit and the ther-
mopile cannot detect tem-
perature properly.
The connector is not prop-
erly connected or the wire
is faulty.
The fuser heater is broken. Replace the fuser unit.
The low voltage PWB is
faulty.
The main/engine PWB is
faulty.
7-81
2RV/2RW/2RX/2RY/3RA-3
Measures
Reconnect the following FFC.
If the FFC terminal is peeled,
deformed or broken, replace
it.
• LSU (APC PWB) - Main/
engine PWB (YC505)
Reattach the LSU while tak-
ing care of static electricity. If
not repaired, replace it.
Replace the main/engine
PWB.
Measures
Remove a piece of paper
remaining in the fuser unit.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire.
• Fuser unit - Main/engine
PWB (YC19)
• Low voltage PWB (YC103)
- Main/engine PWB (YC20)
Replace the low voltage
PWB.
Replace the main/engine
PWB.
Reference
Reference