Canon on Monday released a small army of new printers, including two six-colour photo printers – the i900D Photo Printer and the i960 Photo Printer – and three all-purpose printers – the i860 Desktop Photo Printer, the 455 Desktop Photo Printer and the i475D Desktop Photo Printer. The i900D and i960 deliver up to 4800-x-1200 dpi resolution and include a photo paper tray that supports 4-x-6 inch photo paper that can act as a dual paper feed. This means that the photo printers can simultaneously accommodate 8.5-x-11 or 5-x-7 inch paper, as well as 4-x-6 inch borderless photo paper. You can alternate printing modes or printing sizes without stopping to change paper. Canon says the i900D can print a 4800-x-1200, borderless 4-x-6 photo in as quickly as 75 seconds, while the i960 can handle the same job in as little as 37 seconds. The i900D features a built-in two-inch LCD display for viewing, editing and printing without the need for your Mac. Plus, the i900D printer sports an onboard array of media slots that permit direct printing from a wide variety of media including CompactFlash, MicroDrive, SmartMedia, Memory Stick and Multimedia Card. A Memory Stick Duo, xD PictureCard or mini SD Card can be used with a special adaptor – sold separately. Canon's Think Tank System features six individual ink tanks coupled with an "intelligent" ink management system by which ink tanks are replaced individually when they are depleted rather than replacing the entire all-in-one type ink cartridge when the first ink runs out. The six individual colour cartridges are black, cyan, magenta, yellow, photo cyan and photo magenta. You can get an optional auto duplex printing unit for the i960 that will automatically reroute a page for properly formatted two-sided printing. Additionally, there's an optional 250-sheet paper feed cassette that can attach to the base of the i960 photo printer and which increases the paper load capacity to 400 sheets at a time. Due next month, the i900D and i960 printers carry an estimated street price of $249.99 (around £170) and $199.99 (£130) respectively. The i860 Desktop Photo Printer can tackle up to 4800-x-1200 colour to 16ppm in colour. Boasting a five-colour ink system, the printer features a dye-based photo-grade black ink tank for photo printing. The printer also supports the optional auto duplex printing unit that automatically reroutes the page for properly formatted two-sided printing and optional 250-sheet paper feed cassette that ups the paper load capacity to 400 sheets at a time. Shipping in mid-September, the i860 Desktop Photo Printer will cost $149.99 (around £100). The i455 and i475D printers offer a maximum 4800-x-1200 colour dpi and a top speed of up to 18ppm in black and up to 12ppm in colour. The i455 and i475D printers use Canon's BCI-24 pigment-based black ink cartridge and Canon's BCI-24 colour cartridge. The i475D Desktop Photo Printer has onboard media slots that permit direct printing from the same memory cards as the i900D. Available this month, the i455 and Canon i475D printers carry estimated street prices of $79.99 (around £55) and $129.99 (£90) respectively. Each of the new Canon printers support PictBridge, technology that allows the direct printing of images from PictBridge compatible digital cameras and camcorders to PictBridge compatible printers. All the printers use Canon's MicroFine Droplet Technology, a nozzle system that ejects prescribed-volume of ink droplets in sizes as small as two picoliters in volume. All can handle edge-to-edge borderless printing in 4-x-6, 5-x-7 and 8.5-x-11 inch sizes. And all are compatible with Windows and Mac OS X/9 computers and feature bundled software for photo enhancement and management.