Canon iR8500 Service Manual page 797

ERROR CODE
E540
Main cause The tray A lift motor (M13) is faulty. The tray A idle rotation sensor (PI19)
is faulty. The tray A paper sensor (PI20) is faulty. The tray approach switch
(MSW 3) is faulty.
Condition
0001 A clock error is identified; during motor rotation, the lock from the
0002 An area error is detected; the position of the tray A is below the
0003 A safety switch error is identified.
00FF A time-out condition is identified; the ascent/descent operation
E542
Main cause The tray B lift motor (M12) is faulty. The tray B idle rotation sensor (PI18)
is faulty. The tray B lower limit sensor (PI24) is faulty. The tray B paper
sensor (PI17) is faulty.
Condition
0001 A clock error is identified; during motor rotation, the lock from the
0002 An area error is detected; the position of the tray B is above the
0003 A safety switch error is identified.
00FF A time-out condition is identified; the ascent/descent operation
E551
Main cause The power supply fan (FM1) is faulty. The feeding/cooling fan (FM2) is
faulty.
Condition
0001 The power supply fan is identified as being at rest for 2 secs or
0002 The feeding/cooling fan is identified as being at rest for 2 secs or
E-22
tray A idle rotation sensor is absent for 250 msec.
area of the tray B.
does not end within 25 secs when the tray A lift motor is driven.
tray B idle rotation sensor is absent for 250 msec.
area of the tray A.
does not end within 25 secs when the tray B lift motor is driven.
more.
more.
COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001