1600/2000/2500 FUSER UNIT/EXIT UNIT
14 - 8
December 2000 © TOSHIBA TEC
Reference
1. The thermistor/ heater status counter never has values other than 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9
written on it.
• When the power is turned ON, if the heater lamp does not turn ON and service call C41 is dis-
played immediately, check the thermistor/heater status counter. If it is “2” or over, be sure to check
the thermistor and heater lamp. Then, after repairing or replacing, it is necessary to reset the
counter to “0”(code 400 in 08 mode) and then turn the power ON.
• If the thermistor/heater status counter should show “10” or over (e.g., 11), there is a possibility that
SRAM or the data in it may have been ruined. Check the bias, high-voltage transformers and
charge wires to see if any of them is defective, and repair if necessary. Then, you have to check all
the data inside SRAM.
2. Relationship between the thermistor output voltage and heat roller temperature:
Approx. 2.33V when the temperature is 190°C, approx. 2.53V when the temperature is 200°C and
approx. 0.1599V when the temperature is 40°C.
3. Relationship between the heat roller surface temperature and the heater thermistor 1 resistance.
Fig. 14-6-1
4. Temperature control at heat roller ends
During multi copying, the temperature on the ends of the heat roller (non-paper passage areas)
generally tends to become higher than that on the paper passage areas. This temperature is de-
tected by the heater thermistor 2; i.e. when it detects a temperature of 245°C or over, the heater
lamp is set to automatically turn itself OFF, regardless of the temperature on the paper passage
areas.
16_001
Values in ( ) are for DP2000/2500 series.
Temperature
Thermistor resistance
Fuser lamp state
190 (200) °C or below
5.9K
Ω
(5.01K
Ω
) or over
ON
190 (200) °C
5.9K
Ω
(5.01K
Ω
)
The previous state kept intact
190 (200) °C or over
5.9K
Ω
(5.01K
Ω
) or below
OFF
Содержание DP1600
Страница 1: ...DIGITALPLAINPAPERCOPIER DP1600 2000 2500 File No 31100011 R0111216600 TTEC ...
Страница 2: ...Copyright 2000 TOSHIBA TEC CORPORATION ...
Страница 21: ...1600 2000 2500 OUTLINE OF THE MACHINE 2 8 December 2000 TOSHIBA TEC B 2 Switches SW2 SW1 02 02 04 ...
Страница 23: ...1600 2000 2500 OUTLINE OF THE MACHINE 2 10 December 2000 TOSHIBA TEC C 1 Motors M1 M3 M5 M7 M6 M4 M2 02 02 06 ...
Страница 145: ...8 PRINTING 8 1 8 1 General Description 8 1 8 2 Structure 8 2 8 3 Laser Diode 8 6 8 4 Disassembly and Replacement 8 7 ...
Страница 231: ...December 2000 TOSHIBA TEC 16 1 1600 2000 2500 PC BOARD 16 BOARD ASSEMBLY 16 1 PWA F MAN 16 01 01 ...
Страница 232: ...1600 2000 2500 PCB BOARD 16 2 December 2000 TOSHIBA TEC 16 2 PWA F RLY 16 02 01 ...
Страница 233: ...December 2000 TOSHIBA TEC 16 3 1600 2000 2500 PC BOARD 16 3 PWA F PIF 16 03 01 ...
Страница 234: ...1600 2000 2500 PCB BOARD 16 4 December 2000 TOSHIBA TEC 16 4 PWA F PNL 16 5 PWA F VR 16 04 01 16 05 01 ...
Страница 236: ...1600 2000 2500 PCB BOARD 16 6 December 2000 TOSHIBA TEC 16 7 PWA F FUS ASD AUD CND TWD SAD models 16 07 01 ...
Страница 237: ...17 WIRE HARNESS CONNECTION DIAGRAMS 17 1 ...
Страница 264: ...1 1 KANDA NISHIKI CHO CHIYODA KU TOKYO 101 8842 JAPAN ...