Canon GP605 Service Manual page 846

CHAPTER 13 TROUBLESHOOTING
Code
• The fluorescent lamp is mounted
E218
wrongly.
• The fluorescent lamp is faulty.
E219 • The fluorescent lamp heater inside
thermistor is faulty.
• The fluorescent lamp is faulty.
• The light intensity sensor is faulty.
• The intensity control PCB is faulty.
• The inverter PCB is faulty.
E220
• The DC controller PCB is faulty.
• The fluorescent lamp is faulty.
• The light intensity control PCB is faulty.
• The DC controller PCB is faulty.
• The wiring is faulty (short circuit, open
circuit).
E222
• The scanner cooling fan (FM3) is faulty.
• The DC controller PCB is faulty.
E226
• The wiring is faulty (short circuit, open
circuit).
• The DC controller PCB is faulty.
E240
• The image processor PCB is faulty.
• The original orientation detection PCB
is faulty.
E241
• The DC controller PCB is faulty.
• The control panel PCB is faulty.
E243
• The inverter cooling fan (FM9) is faulty.
• The DC controller PCB is faulty.
E251
• The wiring is faulty (short circuit, open
circuit).
13-254
COPYRIGHT © 1999 CANON INC.
Cause
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Description
• The absence of the fluorescent lamp is
detected at power-on.
• The temperature around the fluorescent
lamp is 170°C or more while the
fluorescent lamp is on.
• The light intensity does not reach a
specific level within 10 sec after the
fluorescent lamp has been turned on.
• The activation detection signal (FL-
DTCT) arrives within 5 sec after the
fluorescent lamp has been turned off.
• The activation detection signal (FL-
DTCT) does not arrive within 60 se after
the fluorescent lamp has been turned on
during shading adjustment.
• The light intensity does not reach a
specific level within 10 sec after the
fluorescent lamp has been turned on.
(However, within 60 sec if the room
temperature is 10°C or less.)
• The activation signal is not turned off 5
sec after the fluorescent lamp has been
turned off.
• The activation signal does not arrive with
60 sec after the fluorescent lamp has
been turned on during shading
adjustment.
• The lock signal (FM3LCK) is detected
for 5 sec or more while the scanner
cooling fan (FM3) is being driven.
• An error in communication occurs in the
microprocessor on the DC controller
PCB.
• The orientation of the original is not
identified when the second or subsequent
original must be read.
• The orientation of the last original is not
detected 5 sec or more after the last
original has been read.
• A communication error has occurred
between the microprocessor on the DC
controller PCB and the microprocessor
on the control panel PCB.
• The lock detection signal (FM9LCK) is
generated 5 sec or more while the
inverter cooling fan (FM9) is being
driven.