Toshiba 350 User Manual

13 - 14

e-STUDIO350/352/353/450/452/453

FUSER UNIT / PAPER EXIT SECTION

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(2)  IH error

(2)  IH error

Initial abnormality:

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.

Checking timing

Error content

Port input value

Error
code

Counter

H1ERR1

H1ERR2

Power ON

Initial abnormality

L

L

C470

10

In warming up

IH power voltage abnormality

L

L

C470

11

Detecting 40°C

IGBT high temperature abnormality
Continuous energization (15 sec.)

L

H

C480

12

IH circuit/coil abnormality

H

H

C490

13

In warming up
Detecting 40°C
During ready status

IH power voltage abnormality

L

L

C470

14

IGBT high temperature abnormality
Continuous energization (15 sec.)

L

H

C480

15

IH circuit/coil abnormality

H

H

C490

16

During ready status
During printing
At Energy Saving
Mode

IH power voltage abnormality

L

L

C470

17

IGBT high temperature abnormality
Continuous energization (15 sec.)

L

H

C480

18

IH circuit/coil abnormality

H

H

C490

19

Normal

H

L

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