Minolta EP5000 - Abnormal Timing

Interleaf EP5000/EP4000 TROUBLESHOOTING
97.04.01
T-46
1156SBT040104A
C04## Exposure Lamp Malfunctions
* Code Description Detection Timing
C0400 Exposure Lamp LA1’s failure to turn
ON
The output from AE Sensor Board PWB-H
does not become 4.0V or more for the period
between when LA1 turns ON and the Scanner
starts a scan motion and when the Image
Leading Edge signal (BASE) turns ON.
C0410 Exposure Lamp LA1 turning ON at ab-
normal timing
With LA1 OFF, the output from PWB-H re-
mains 3.9V or less for a continuous 3-sec.
period at any timing while the Scanner is at
the home position or the Original Cover is
lowered.
1156SBT040105A
C05## Fusing Malfunctions
* Code Description Detection Timing
C0500 Warming-up failure
(Fusing Heater Lamp failure)
The surface temperature of the Upper Fusing
Roller does not reach a given level even after the
lapse of a given period of time during warming-up
as detailed below:
D If the temperature is 165_C or less when the Pow-
er Switch is turned ON:
From room temperature 105S 60S
to 65_C
65_C~140_C 210S 110S
EP4051 EP3051
140_C~170_C 220S 120S
*170_C~200_C 145S 100S
*170_C~190_C 145S 100S
D If the temperature is more than 165_C when the
Power Switch is turned ON:
EP4051 EP3051
*A 200_C temperature control is provided for the
first 1 hour after the Power Switch has been
turned ON and 190_C temperature control is
provided thereafter.
*~200_C 200S 120S
*~190_C 200S 120S
C0510 Abnormally low fusing temperature
(Fusing Heater Lamp failure)
The surface temperature of the Upper Fusing
Roller remains 135°C or less for a continuous
5-sec. period or more after the copier has com-
pleted warming up.
C0520 Abnormally high fusing temperature
(Fusing Heater Lamp turning ON at
abnormal timing)
The surface temperature of the Upper Fusing
Roller remains 230°C or more for a continuous
5-sec. period or more after the copier has com-
pleted warming up.