HP is the standard-bearer in wide-format printers for architectural drawings and the like.
A Canon wide format printer can be used for printing large poster size photos or small signs. The printer is much larger then a standard size printer.
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One may require a wide format photo printer when printing documents or images wider than the standard A4 paper size. This may be large A3 posters, for example.
Wide format printers are necessary for printing large documents. Large format printers can be purchased from any store that sells office supplies and office products such as Office Max and Staples.
You will buy a wide format printer from various office supply stores. You will consider stores such as Office Depot and companies such as Xerox before making a final decision.
Wide format inkjet printers can be purchased from many different stores and retailers. Some examples that sell these printers include Walmart, HP Direct, and LexJet.
Office supply stores such as Staples or OfficeMax sell Epson wide format printers as well as printer recharges when you need them. You could also check the prices at online retailers or auction sites, although shipping will be expensive for this item.
HP Officejet 6100 ePrinter - H611a HP Officejet 6600 e-All-in-One Printer - H711a/H711g HP Officejet 6700 Premium e-All-in-One Printer - H711n HP Officejet 7110 Wide Format ePrinter - H812a HP Officejet 7610 Wide Format e-All-in-One Printer
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I don't know of an official printer file format. However, if you print to file, the data stream is saved as the .xps format. Perhaps this is what you are looking for.
The meaning of wide format is any drawing size larger than "A3". Wide format is also known as Large format. Large printers are need to print in wide format.
It depends on what you are looking for and what you want it to do. The prices range depending on what function you need, and what company (brand) it is.