Canon S820MG Service Manual page 129

Part 2: Troubleshooting
7.2 Test Printout
(1) S900/S820
The header information shows the model, control ROM version etc. This sample
belongs is from the S900, which differs somewhat from that of the S820.
ROM
Model name version
Download Service Manual
USB serial
number
Nozzle check pattern
Figure 2-13 Service/Factory Test Printout (Sample)
ManualsBooks
Bi-directional
alignment
S900/ S820/ S750/ S520