Copystar CS-2550 - Page 153

2FT-1
1-5-23
C6000 Broken fixing heater wire
The temperature does not become
100°C/212°F even if 30 s pass before
secondary stabilization.
When there is no 1
°C/33.8°F rise in 5 s
before secondary stabilization.
Poor contact in the
thermistor connec-
tor terminals.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Fixing thermistor
installed incor-
rectly.
Check and reinstall if necessary.
Fixing thermostat
triggered.
Check for continuity. If none, replace the fix-
ing thermostat.
Fixing heater M or
S installed incor-
rectly.
Check and reinstall if necessary.
Broken fixing
heater M or S wire.
Check for continuity. If none, replace the fix-
ing heater M or S.
C6020 Abnormally high fixing unit ther-
mistor temperature
The fixing temperature exceeds 240
°C/
464
°F for 40 ms.
Shorted thermistor. Measure the resistance. If it is 0 Ω, replace
the thermistor.
Broken heater con-
trol circuit on the
power supply PCB.
Replace the power supply PCB and check
for correct operation.
C6050 Abnormally low fixing unit thermistor
temperature
The fixing temperature remains below
90
°C/194°F for 1 s.
Poor contact in the
thermistor connec-
tor terminals.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Broken fixing ther-
mistor wire.
Measure the resistance. If it is ∞ Ω, replace
the fixing thermistor.
Fixing thermistor
installed incor-
rectly.
Check and reinstall if necessary.
Fixing thermostat
triggered.
Check for continuity. If none, replace the fix-
ing thermostat.
Fixing heater M or
S installed incor-
rectly.
Check and reinstall if necessary.
Broken fixing
heater M or S wire.
Check for continuity. If none, replace the fix-
ing heater M or S.
C6400 Zero-crossing signal problem
The engine PCB does not detect the
zero-crossing signal for the time speci-
fied below. At power-on: 3 s Others: 5 s
Poor contact in the
connector termi-
nals.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Defective power
supply PCB.
Check if the zero-crossing signal is output
from YC2-5 on the power supply PCB. If not,
replace the power supply PCB.
Defective engine
PCB.
Replace the engine PCB if C6400 is
detected while YC2-5 on the power supply
PCB outputs the zero-crossing signal.
Code Contents
Remarks
Causes Check procedures/corrective measures