November 2003 © TOSHIBA TEC 13 - 13 e-STUDIO350/450 FUSER UNIT / PAPER EXIT SECTION
13
13.4.6 Abnormality in the IH control circuit
When an abnormality is detected in the IH control circuit, it stops the power supply to the IH coil and
displays a message “call for service”.
(1) IH control circuit
CPU output level of the IH control circuit changes depending on the condition of IH coil. This output
level goes through the photocoupler into the gate array.
PA3
VDD
IH board
PA2
5V SW
H1ERR2
H1ERR1
LGC board
CPU
Gate array
Fig. 13-407
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