This app connects the iPhone to most Wi-Fi printers, and it can connect remotely over the 3G network. This app can be used to print labels with the Dymo 400 or 450 LabelWriters. the price of this application is $3.99
2.LexPrint
If you own a Lexmark printer and want to print remotely with the iPhone, then the LexPrint app is for you. This iPhone printer app is designed solely for printing photos. Use the zoom and pan features to select the individual parts of a picture to print. Adjust the settings of the printer from the iPhone. This app requires iOS3 or greater and some Lexmark printer models may require LexPrint Listener installed on the computer connected to the printer. LexPrint is a free app
3.Print n Share
Print n Share can print directly to a Wi-Fi printer, print any type of document to any type of printer through the PC or Mac, and print remotely over the 3G network. With iOS4, this iPhone printer app can display and print calendars by day, week, or month. You can also print e-mail messages and attachments with this app. the price of this application is $8.99
4.Print Magic
With Print Magic You can print copied text, PDFs, webpages, e-mails, and photos. This iPhone printer app works with Epson, HP, Brother, Canon, and Lexmark Wi-Fi printers. the price of this application is $2.99
5.Print by Inside Root Media
The app works with AirPrint enabled printers featuring iOS 4.2. With the Print app by Inside Root Media, you can print and share a variety of documents from the iPhone including Apple Keynote, Pages, Numbers; Adobe PDF files; and Microsoft Word, Excel, and Powerpoint. the price of this application is $4.99
