Abnormal Timing - Minolta EP5000 General, Mechanical/Electrical

Interleaf EP5000/EP4000 TROUBLESHOOTING
97.04.01
1156SBT040104A
C04## Exposure Lamp Malfunctions
* Code
C0400 Exposure Lamp LA1's failure to turn
ON
C0410 Exposure Lamp LA1 turning ON at ab-
normal timing
1156SBT040105A
C05## Fusing Malfunctions
* Code Description
C0500 Warming-up failure
(Fusing Heater Lamp failure)
C0510 Abnormally low fusing temperature
(Fusing Heater Lamp failure)
C0520 Abnormally high fusing temperature
(Fusing Heater Lamp turning ON at

abnormal timing)

Description
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.
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.
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
to 65_C
65_C~140_C
140_C~170_C
*170_C~200_C
*170_C~190_C
D If the temperature is more than 165_C when the
Power Switch is turned ON:
*~200_C
*~190_C
*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.
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.
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.
T-46
Detection Timing
Detection Timing
EP4051 EP3051
105S 60S
210S 110S
220S 120S
145S 100S
145S 100S
EP4051 EP3051
200S 120S
200S 120S