Canon BJC6500 Service Manual - Page 74
Temperature, Error / Head, Sensor Error
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Part 4: TROUBLESHOOTING BJC-6500 7. Head Temperature Error / Head Temperature Sensor Error The print head is too hot. Even with power turned off, head temperature doesn't drop. BJ cartridge, control board, empty ink tank. Visually check ink tanks Check that printing is not being conducted with empty ink tank(s). Empty? No Yes Replace ink tank(s) Leave the printer for several It is possible the BJ cartridge head unit minutes with power off has overheated. Turn power on Error No indication? Yes 1. Replace both BJ cartridges 2. Replace the control board END 4-10
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<Cause>
The print head is too hot.
Even with power turned off, head temperature doesn't
drop.
<Suspected parts>
BJ cartridge, control board, empty ink
tank.
<Measure>
Part 4: TROUBLESHOOTING
BJC-6500
4-10
7. Head
Temperature
Error / Head
Temperature
Sensor Error
Leave the printer for several
minutes with power off
END
Yes
No
Error
indication?
It is possible the BJ cartridge head unit
has overheated.
2. Replace the control
board
1. Replace both BJ
cartridges
Turn power on
Empty?
Visually check
ink tanks
No
Replace ink tank(s)
Yes
Check that printing is not being conducted
with empty ink tank(s).