Canon BJC6500 Service Manual - Page 73
Replace the control, board, Replace the AC, adapter, 24 VDC output check, HVCONT check
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BJC-6500 Part 4: TROUBLESHOOTING (1) HVCONT check HVCONT (+24 VDC output control for output (J1). +5VDC HVCONT GND +24VDC GND OK? Yes No signal) Replace the control board +24 VDC output check • Check for +24 VDC during operation (J1). • No +24 VDC is output when the carriage is at the cartridge replacement position or if an error occurs. OK? No Yes Replace the control board Replace the AC adapter Replace the DC power supply cable TROUBLE SHOOTING 4-9
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4-9
BJC-6500
Part 4: TROUBLESHOOTING
TROUBLE
SHOOTING
(1)
Replace the control
board
Replace the AC
adapter
+24 VDC output check
Replace the control
board
• Check for +24 VDC during operation (J1).
• No +24 VDC is output when the carriage is at
the cartridge replacement position or if an error
occurs.
HVCONT (+24 VDC output control
signal)
for output (J1).
HVCONT check
Replace the
DC power supply cable
+5VDC
GND
+24VDC
HVCONT
GND
OK?
No
Yes
OK?
No
Yes