Canon G1020 series Online Manual page 218

8 flashes The maintenance cartridge is not installed.
The currently installed maintenance cartridge cannot be used with this printer.
The maintenance cartridge cannot be recognized.
The maintenance cartridge is almost full.
The maintenance cartridge is full.
9 flashes Shipping tape or protective material may still be attached to print head holder.
11 flashes Cannot perform printing with current print settings.
Paper size that cannot be fed is specified.
14 flashes Print head cannot be recognized.
15 flashes Print head cannot be recognized.
25 flashes The time for replacement of internal parts is approaching.
Support Code Corresponding to Number of Alternate Flashes of ON
Lamp and Alarm Lamp
Example of 2 times flashing:
(A) Alternately flashes
(B) Goes off
Number of flashes
2 flashes
3 flashes
4 flashes
5 flashes
Cause
Printer error has occurred.
Printer error has occurred.
Printer error has occurred.
Printer error has occurred.
218
1723
1724
1496
1725
1727
1726
1890
1892
4103
4104
1473
1472
2200
Support Code
5100
6000
5C30
5700