Canon imagePROGRAF TM-300 36" Large-Format Inkjet Printer with L36ei Scanner Kit - Manual (Page 902)

4935
Cause
The print head nozzle may be blocked.
What to Do
Follow the steps below to repeat Print head alignment .
1. Tap OK on the touch screen to dismiss the error.
2. Print a test pattern to check the nozzles.
Checking for Nozzle Clogging
3. If the nozzle is blocked, clean the print head.
Cleaning the Print Head
4. Repeat Print head alignment .
Automatic Adjustment to Straighten Lines and Colors
902