Konica Minolta bizhub PRO 1050 Service Manual page 631

14. MALFUNCTION CODE
Classification Code
Fusing SC34-01 Thermistor /1 (TH1) high tempera-
high tem-
perature
abnor-
mality
SC34-02 Thermistor /3 (TH3) high tempera-
SC34-03 Thermistor /1 (TH1) high tempera-
SC34-04 Thermistor /3 (TH3) high tempera-
Fusing SC35-01 Thermistor /1 (TH1) low tempera-
low tem-
perature
abnor-
mality
SC35-02 Thermistor /3 (TH3) low tempera-
Fusing SC36-01 Thermistor /1 (TH1) high tempera-
sensor
abnor-
mality
SC36-02 Thermistor /3 (TH3) high tempera-
596
Causes
ture detection (software).
TH1 detects a temperature of
210°C or above 5 times in a
period of 1 second.
ture detection (software).
TH3 detects a temperature of
230°C or above 5 times in a
period of 1 second.
ture detection (hardware).
An abnormal condition is detected
with the fusing error detection sig-
nal 1.
ture detection (hardware). An
abnormal condition is detected
with the fusing error detection sig-
nal 4.
ture detection (software). TH1
does not get to 50°C when a
specified period of time elapses
after the main switch (SW1) is
turned ON for the fusing ON con-
trol.
ture detection (software). TH3
does not get to 50°C when a
specified period of time elapses
after the main switch (SW1) is
turned ON for the fusing ON con-
trol.
ture detection (long time/soft-
ware). TH1 detects a temperature
of 200°C or above 30 times in a
row in a period of 1 second.
ture detection (long time/soft-
ware). TH3 detects a temperature
of 220°C or above 30 times in a
row in a period of 1 second.
Field Service Ver3.0 Nov.2006
Resulting Estimated abnormal parts
operation
The main body Printer control board (PRCB)
stops immediately AC drive board (ACDB)
to turn OFF the Fusing heater lamp /1 (L2)
RL1 (main). Fusing heater lamp /2 (L3)
Fusing heater lamp /3 (L4)
Thermistor /1 (TH1)
Thermistor /2 (TH2)
Thermistor /3 (TH3)
Thermistor /4 (TH4)
Caution:
• When SC34-**, SC35-
** or SC36-** (fusing
temperature
abnormalities) occur,
be
defective parts before
setting the software
DIPSW3-1 to 0. Set-
ting the DIPSW3-1 to
0 with defective parts
not
result in a fire.
related
sure to repair
repaired may