Shipments of a new MacBook Air model, reportedly equipped with a 12-inch Retina screen, have begun in small volumes and large-volume shipments will begin in November, according to Taiwan-based supply chain makers.

Apple is also planning to upgrade the technologies used for printing its logo onto devices and will use laser cutting and unique embedded technologies to make the logo 3D-like and shine at the edges. All Apple's products will feature the new logo in 2015, starting with the next-generation iMac, the sources detailed.

Currently, Apple is able to ship 12-13 million MacBooks, 4-5 million iMacs, 75 million iPads and 180 million iPhones a year; therefore, the company is treating the logo upgrade plan carefully, the sources noted.

Apple is set to host a event on October 16 where it is expected to unveil new iPads and the new 12-inch MacBook Air, the sources added.