Many publishers round the google webmasters forum are talking about the google’s latest issued cheques which are not having MICR tag on it.I myself have got this but i have deposited it today only so will find that my bank credits it to my account or not.

what is this code

In MICRO BUSINESSES information is printed on the instrument (check or DD) is a special kind of ink, which consists of magnetic material. The insertion of the instrument on the computer, printed information is read machines. MICRO system is advantageous because it minimizes the chance of error, clearing checks is easy and rapid transfer of resources to facilitate the movement.

It consists of 9 digits: 123 456 789
123 City Code
456 Bank Code
789 Branch Code

Well many publishers were able to get payment while for many bank refused to clear

Check the thread here

http://www.google.com/support/forum/p/AdSense/thread?tid=23be4547fa7b3948&fid=23be4547fa7b394800046510363b5084&hl=en