Minolta Di620, Manual, Page: 242 / 466

T-27
C04
∗∗
Exposure Lamp malfunctions
C14A
∗
Exposure Lamp Heater malfunctions
C05
∗∗
Fusing Unit malfunctions
Code Description Detection Timing
C0400 Exposure Lamp FL1's failure to
turn ON
<When the light intensity is adjusted>
The CCD read data does not exceed the specified level
when the peak is detected of the intensity of light after
the lapse of, or within, 1 min. after FL1 has turned ON.
<Normally>
The CCD read data does not exceed the specified level
450 msec. after FL1 has turned ON.
C0420 Exposure Lamp FL1 turning ON at
abnormal timing
<When the light intensity is adjusted>
The adjusted value for the intensity of light remains at
the lower limit (48%) and the CCD output level is at the
saturation level even after the lapse of 2 sec. or more
after FL1 has turned ON.
C14A0 Defective Exposure Lamp Heater
UN13 (during warming-up)
The temperature does not reach 60°C within 150 sec.
after UN13 has been turned ON.
C14A1 Defective Exposure Lamp Heater
UN13 (abnormally low tempera-
ture)
The temperature remains at 40°C or below for a continu-
ous 2-sec. or more period after the copier has com-
pleted warming up.
C14A2 Defective Exposure Lamp Heater
UN13 (abnormally high tempera-
ture)
The temperature remains at 110°C or higher for a con-
tinuous 2-sec. or more period after the copier has com-
pleted warming up.
C14A3 IR warming-up failure <When the light intensity is adjusted>
A Temperature-Under-Control signal is not received
from the engine within 195 sec. after FL1 has turned
ON.
Code Description Detection Timing
C0500 Warming-up failure (defective
Upper Fusing Roller Heater Lamp)
During warming-up, the surface temperature of the
Upper Fusing Roller does not reach:
•
90°C within 180 sec. from room temperature
•
140°C within 180 sec. after it has reached 90°C
•
170°C within 120 sec. after it has reached 140°C
•
The set temperature within 120 sec. after it has
reached 170°C.
C0510 Abnormally low fusing temperature
•
The surface temperature of the Upper Fusing Roller
remains 140°C or less for a continuous 2-sec. or more
period after the copier has warmed up.
•
The surface temperature of the Lower Fusing Roller
remains 80°C or less for a continuous 2-sec. or more
period after its temperature has reached the set level.
C0520 Abnormally high fusing tempera-
ture
•
The surface temperature of the Upper Fusing Roller
remains 220°C or more for a continuous 2-sec. or
more period after the copier has warmed up.
•
The surface temperature of the Lower Fusing Roller
remains 190°C or more for a continuous 2-sec. or
more period after its temperature has reached the set
level.
C0540 Fusing Roller Thermistor loading
failure
The Thermistor Set signal remains HIGH for a continu-
ous 4-sec. or more period.
C0550 Hard protect detected The Fusing Hard Protect signal remains LOW for a con-
tinuous 20-msec. period.