Toshiba e-STUDIO453 Service Manual page 252

(2) IH error
Checking timing
Power ON
In warming up
Detecting 40°C
In warming up
Detecting 40°C
During ready status
During ready status
During printing
At Energy Saving
Mode
(2) IH error
Initial abnormality:
13
CPU (IH) abnormality is not cleared.
IH power voltage abnormality:
The input voltage becomes above 20% (approx.) or below 20% (approx.) of the rated voltage.
IGBT high temperature abnormality:
Overheating of IGBT or short- or open-circuit of IGBT temperature-detecting sensor.
IH circuit abnormality:
Abnormality in IH circuit
IH coil abnormality:
Temperature-detecting sensor in IH circuit is abnormal, or IH coil is open-circuited or wrongly in-
stalled.
e-STUDIO350/352/353/450/452/453
FUSER UNIT / PAPER EXIT SECTION
Error content
Initial abnormality
IH power voltage abnormality
IGBT high temperature abnormality
Continuous energization (15 sec.)
IH circuit/coil abnormality
IH power voltage abnormality
IGBT high temperature abnormality
Continuous energization (15 sec.)
IH circuit/coil abnormality
IH power voltage abnormality
IGBT high temperature abnormality
Continuous energization (15 sec.)
IH circuit/coil abnormality
Normal
13 - 14
Port input value
H1ERR1 H1ERR2
L L
L L
L H
H H
L L
L H
H H
L L
L H
H H
H L
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Error
Counter
code
C470 10
C470 11
C480 12
C490 13
C470 14
C480 15
C490 16
C470 17
C480 18
C490 19
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