QUOTE(hazim @ Jul 21 2007, 02:02 AM)

i have an "hp deskjet F370 (all-in-one) printer-scanner-copier"; it was working normally, but now when i try to print anything, when i click print, "save as" opens to save the file in an mdi format (.mdi). i also tried to open and print this new file, but with no result!!!
I think you must have set the printer to print to file. 2 Places where it might have been set, so as to revert it. Assuming you're using WinXP. Other windows OS is quite similar.
1. If it happen to all the applications, then it's set under the printer's properties. Goto control panel -> Printers and Faxes. Look for the F370, then right click, select Properties. Under the Ports tab, you should see a list of port, like LPT1, COM1, FILE, USB001. FILE must have been selected. You need to select either USB or LPT, depending on which one is your printer connected to.
2. If it only happen to a particular application, then under the print dialog of that application, which appear either before you print, or by calling print setup. Look for "Print to File", make sure it's not checked. Sometime is hidden under another dialog, like Advance Setting.
As for the mdi format, i'm not quite sure why it save to that format. Normally it should save as .PRN file. With the prn file, if your printer is connected under LPT1, you can still print via dos prompt, "type filename.prn >> lpt1". That will print out what ever you have try to print(even graphic). A useful trick, if you happen to plug the printer on the pc without the driver, and you need to print from another pc maybe without lpt port, you can print as file and transfer over to the other pc to do the printing. The pc which do the print to file will need a compatible driver though. I did that once and save the day, cause i don't have the driver disc, and my notebook don't have lpt port.
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