Hello and thank you for choosing JA for your support needs. Sorry to hear of this issue, I hope to help in its resolution.
Please try these steps below as a first step to resolve the issue;
Clean the print head if lines are missing or if horizontal white streaks are present in the printed nozzle check pattern. Cleaning unclogs the nozzles and restores the print head condition. Cleaning the print head consumes ink, so clean the print head only when necessary.
1. Make sure that the power is turned on.
2. Clean the print head.
(1) Press the Setup button.
The Setup menu screen will appear.
(2) Use the or button to select Maintenance, then press the OK button.
LCD and Operation Panel
(3) Use the or button to select Cleaning, then press the OK button.
The machine starts cleaning the print head.
Do not perform any other operations until the machine completes the cleaning of the print head. This takes about 1 to 2 minutes.
3. Check the print head condition.
To check the print head condition, print the nozzle check pattern.
Printing the Nozzle Check Pattern
To access other available functions, use the mode buttons.
If the problem is not resolved after cleaning the print head twice, clean the print head deeply.
Cleaning the Print Head Deeply
If that did not display properly, the direct link is here:
then try to print again and let me know of the results.