How to add ITEM column in INVOICE printing

Creating Invoice it shows ITEM but When printing invoice ITEM COLUMN is not there.
how to add ITEM Column in Printing Invoice

you can enter it in the Item code field when creating inventory items.
if you do not enter a Description for the inventory item, then the detail entered in the Item name field will appear on your invoices.
if you have entered a Description for the inventory item, then include the item name along with the description so that it will appear on invoices.

Proper content of fields and how the program uses them is explained here: https://www.manager.io/guides/7551. The Item dropdown list on a transaction form is only the way for the user to find inventory and non-inventory items as a shortcut for entry.