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There are two reasons for this problem. First is that if someone has tried to login to your Apple ID with too many incorrect passwords then Apple will disable it to protect the information of your account.
To enable it back, you have to reset the password. You can reset it from here --> https://iforgot.apple.com/
Since you already tried this and it didn't work, it is not the first reason. But this second reason. If Apple has noticed any issues with your card or payment information like report of fraudulent charges, refunds etc they will disable the App Store part of your Apple ID. You will still be able to sign in to your Apple ID, change payment details, password ***** but you will not be able to purchase or download or update your apps. Because they limit the iTunes and App store part of the ID.
So all you have to do is call iTunes directly and ask them to reactivate the account. Only they can access the database and enable the account for you.
To contact iTunes Support, goto this link --> https://www.apple.com/support/itunes/contact/
Click Contact Support at the bottom, click Contact iTunes Store Support at right.
Click Account Management. Click Apple ID has been disabled alert
Click Schedule a Call and they will call you Or you can call them from there. Then you will have to answer some security questions and they will enable the account with in a few minutes.
Re the scanning issue, it might not be related to Apple ID. What is the model and make of your scanner ? Were you able to scan before ?