The specific steps to print the child's itinerary code:

1. First, we open the WeChat APP, enter "State Council Client" in the search box on the homepage, enter the mini program, or directly scan the two lines below The QR code enters the mini program.

2. After entering the mini program, find the epidemic prevention itinerary card on the page and click to enter.

3. Entering the new page requires us to enter our mobile phone number and verification code, and click the query below.

4. Wait for a while and the page will display the color of your communication big data itinerary card.

5. For convenience, we can click on the three dots in the upper right corner to add it to the mini program. Later, you can view it directly by scrolling down on the WeChat homepage.

6. After querying the child's itinerary code, you can save it as a screenshot and then send it to a computer connected to the printer and choose to print it out. The above are the specific steps to print your child’s itinerary code.