Minolta Di551 Service Manual page 511

ELECTRIC PARTS LIST
Warning
Classification
Code
Fan abnor- F32-02
mality
F32-03
F32-04
Motor abnor- F33-01
mality
High fixing F34-01
temperature
abnormality
F34-02
Low fixing F35-01
temperature
abnormality
F35-02
F35-03
Cause
An error for FIXFAN1_EM signal is
detected when 2 seconds have
passed since FM8 (main unit cooling
/2) has turned ON. The error does not
clear after 2 seconds from the OFF/
ON operation.
An error for FIXFAN2_EM signal is
detected when 2 seconds have
passed since FM7 (paper exit /R) has
turned ON. The error does not clear
after 2 seconds from the OFF/ON
operation.
An error for FIXFAN3_EM signal is
detected when 2 seconds have
passed since FM6 (paper exit /F) has
turned ON. The error does not clear
after 2 seconds from the OFF/ON
operation.
Error detection signal is detected
continuously for 1 second when 2
seconds have passed since M5 (con-
veyance) has turned ON.
TH1 (fixing temperature /1) detects
more than 220°C for five consecutive
times in 1 second cycle.
The output voltage of TH1 (fixing
temperature /1) and TH2 (fixing tem-
perature /2) is detected as abnor-
mally high at the comparator circuit
(more than 228°C).
TH1 (fixing temperature /1) has not
reached the predefined temperature
when the specified time has passed
since the fixing ON control has been
processed after SW2 (sub power) is
turned on.
TH1 (fixing temperature /1) detects
less than 120°C for 5 consecutive
times in 1 second cycle while the fix-
ing ON control is processed after
warm-up operation is complete.
The output voltage of TH1 (fixing
temperature /1) is detected as abnor-
mality low at the comparator circuit
(less than -6°C).
Machine response
The machine body
stops immediately and
turns OFF RL1 (main).
4-42
Estimated
abnormal parts
FM8 (main cooling /2)
PRCB (printer control board)
FM7 (paper exit /R)
PRCB (printer control board)
FM6 (paper exit /F)
PRCB (printer control board)
M5 (conveyance)
PRCB (printer control board)
PRCB (printer control board)
DCPS (DC power supply unit)
L2 (fixing heater lamp/1)
L3 (fixing heater lamp/2)
TH1 (fixing temperature /1)
TH2 (fixing temperature /2)