Konica Minolta bizhub PRO 1050 Service Manual page 655

14. MALFUNCTION CODE
Classification Code
LS SC76-38 An error detection signal is
abnor-
mality
SC76-39 An error detection signal is
SC76-40 An error detection signal is
SC76-41 An error detection signal is
FS SC77-01 The conveyance motor (M1) oper-
abnor-
mality
SC77-02 The tray up down motor (M3)
SC77-03 The alignment home sensors /Rr
SC77-04 The main tray paper exit motor
620
Causes
detected for a specified period of
time in succession while the paper
cooling fan motor /1, /2 (FM2,
FM6) of the tandem (2nd) LS is
ON.
detected for a specified period of
time in succession while the paper
cooling fan motor /Mi (FM3) of the
tandem (2nd) LS is ON.
detected for a specified period of
time in succession while the motor
cooling fan motor (FM4) of the tan-
dem (2nd) LS is ON.
detected for a specified period of
time in succession while the paper
cooling fan motor /Rr (FM5) of the
tandem (2nd) LS is ON.
ates for more than the allowed
time at a speed out of the speci-
fied one.
does not turn OFF even when a
specified period of time elapses
after it starts operations. Or, it
operates for more than the
allowed time at a speed out of the
specified one.
(PS8) and /Fr (PS31) do not turn
ON within a specified period of
time after the home position
search operation of the alignment
motors /Rr (M5) and /Fr (M22)
starts.
(M7) operates for more than the
allowed time at a speed out of the
specified one.
Field Service Ver3.0 Nov.2006
Resulting Estimated abnormal parts
operation
The main body Paper cooling fan motor /1,
and the LS stop /2 (FM2, FM6)
immediately to LS control board (LSCB)
turn OFF the main
relay (RL1).
Paper cooling fan motor /Mi
(FM3)
LS control board (LSCB)
Motor cooling fan motor
(FM4)
LS control board (LSCB)
Paper cooling fan motor /Rr
(FM5)
LS control board (LSCB)
The main body FNS control board (FNSCB)
and the FS stop FNS drive board (FNSDB)
immediately to Conveyance motor (M1)
turn OFF the main
relay (RL1).
FNS control board (FNSCB)
FNS drive board (FNSDB)
Tray up down motor (M3)
Tray upper limit sensor (PS2)
Tray lower limit sensor (PS3)
FNS control board (FNSCB)
FNS drive board (FNSDB)
Alignment motor /Rr (M5)
Alignment motor /Fr (M22)
Alignment home sensor /Rr
(PS8)
Alignment home sensor /Fr
(PS31)
FNS control board (FNSCB)
FNS drive board (FNSDB)
Main tray exit motor (M7)