If you want to completely remove iCloud Keychain sync and the information stored by it on Appleâs servers, simply follow these steps, starting on any one of your iOS devices or Macs that is using iCloud Keychain: iPhone, iPad, or iPod Touch. Go to and turn off âApprove with Security Codeâ.dding a new device to sync with iCloud Keychain. After setting up iCloud Keychain on one of your devices, you can add your other iPhone, iPad, iPod Touch or even a Mac running OS X Mavericks to your iCloud Keychain to sync all the stored information across all devices. Adding an iOS Device. 1  Go to.
Stands for Pages Per Minute.. PPM is used to measure the printing speed of both inkjet and laser printers. Most printers include a PPM rating for both black and color documents. These speed measurements are typically listed in the printer's technical specifications.his is because manufacturers measure the maximum PPM in the fastest printing mode, a.k.a. economy mode, which is also the lowest quality. When printing in regular mode, the speed may be twice as slow. When printing in fine or high-quality mode, the speed will likely be reduced even further.
Furthermore, a printer's maximum PPM speed is measured using basic text pages, with no graphics, lines, or other objects. Therefore, if you have a text document that includes a picture, the page could take several times longer to print than a plain text document.his is because manufacturers measure the maximum PPM in the fastest printing mode, a.k.a. economy mode, which is also the lowest quality. When printing in regular mode, the speed may be twice as slow. When printing in fine or high-quality mode, the speed will likely be reduced even further.