Canon PRO-100S series Online Manual page 514

The disc tray guide is open.
The disc tray guide has been closed.
The disc tray guide has been opened.
The disc tray guide is open after replacing the ink tank.
To print on specified paper, you need to open the disc tray guide.
To continue printing, you need to close the disc tray guide.
7 flashes Some ink tanks are not installed in the correct position. (The lamp on the
ink tank flashes.)
More than one ink tanks of the same color are installed. (The lamp on the
ink tank flashes.)
8 flashes The ink absorber is almost full.
9 flashes The device incompatible with the printer is connected.
11 flashes The Page Size setting does not match the size of the paper loaded in the
printer.
Automatic Print Head Alignment failed.
Cannot perform printing with the current print setting.
12 flashes The specified data cannot be printed.
13 flashes The remaining ink level cannot be correctly detected. (The lamp on the ink
tank flashes.)
14 flashes The ink tank cannot be recognized.
Appropriate ink tank is not installed.
15 flashes The ink tank cannot be recognized.
16 flashes The ink has run out. (The lamp on the ink tank flashes.)
19 flashes An unsupported USB hub is connected.
21 flashes The printer cannot detect the paper size.
Support Code Corresponding to the Number of Alternate Flashes of the
POWER Lamp and the Alarm Lamp
Example of 2 times flashing:
514
1851
1855
1856
1858
1859
185A
1680
1681
1700, 1701
2001
1062
2500
4103
4100
1683
1684
1750
1410, 1411, 1412,
1413, 1414, 1415,
1416, 1417
1688
2002
2103