Abnormality Detection By The Thermistors And Thermopiles - Toshiba e-STUDIO 5540C Service Manual

8. Abnormality detection by the thermistors and thermopiles

The following table shows the conditions for judging the temperature abnormality of the fuser belt and
pressure roller, and the detecting timing.
Fuser belt
Check
thermistor /
timing
thermopile
Center Edge
Power ON 220°C
or
above
--- 220°C
above
---
---
---
---
---
Detecting 220°C
40°C or
above
--- 220°C
above
---
---
---
40°C or
below
---
---
---
© 2011 - 2015 TOSHIBA TEC CORPORATION All rights reserved
Temperature judged
Pressure roller
thermistor
Center Side
--- --- ---
--- ---
or
--- 220°C ---
or
above
--- --- 220°C
or
above
--- --- ---
--- 40°C or 150°C
below or
above
--- 150°C 40°C or
or below
above
--- --- ---
--- ---
or
--- 220°C ---
or
above
--- --- 220°C
or
above
--- --- ---
--- --- ---
--- 40°C or ---
below
--- --- 40°C or
below
--- Difference between
Center and Side:
40°C or more
3 - 101
Counter
Error
(08-
code
2002)
Edge
--- C449 9
---
--- C468 8
---
210°C
or
above
--- C462 62
---
--- C449 19
---
--- C468 18
---
210°C
or
above
--- C412 2
(C411) (1)
--- C462 62
(C461) (61)
---
--- C464 70
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
Error
judging
timing
Power ON
On usual
Fixed time
OUTLINE OF THE MACHINE
3