Printer misses printing approx every 3 lines of text (Word) but prints numbers perfectly (Excel)

This sounds like an Microsoft Excel issue. The Windows printer driver controls how printing is done regardless of your printer settings.

Excel controls the format of your page with column widths and line height. Depending on your version of Excel, after selecting your print range and your margins, you will need to go to Page Setup and select "Fit to" -- select 1 page wide and a larger number of pages tall.

Doesn't sound like your printer hardware. Try printing something other than your text document. If the page comes out clean/perfect then it means your printer is having a problem understanding your text document via print program translation. Otherwise try converting your text to pdf and print a sample page, if it works then again problem with software/printer translation.

is this a case of the dots are missing for a valid line, or do you mean a line feed is added at the end of a line, ie you get 3 lines of text occupying 4 lines of space , or 4 lines of text occupies 4 lines of space, but one line has no printed dots on it? to make it more obvious, what does a document with say text thats 3cm tall look like? as it sounds to me like contacts need cleaning.. *** note for info: do not rely on printouts from within a BROWSER as that may have unpredictable results. All text will be treated as a large block of PIXELS and Not TEXT. also Non Printer fonts could cause similar issues.

When you print photos you print in Max dpi, for this no faded lines anywhere. Probably you have a problem only in black color in print head.
Мay be it's partially clogged or partially defective.

goto the maintenace section of your printer and then print maintenace page..or clean printhead option.
or
maybe your black ink cartridge is now low..replace it with a new one..if the problem still exist ..wipe the cartridge on a wet cloth in order to clean the clogs.that cover the nozzles..

I have a HP Deskjet 1300n printer. I can print my email, pictures and items off the internet, but cannot print any word documents or notepad documents. When I print an excel document, I get an incomplete page-the grid lines will print,and text garbage from a adobe program but not all the text. When I do a test print page, I get an incomplete text page, but do not know how to solve this. I have removed and reloaded the printer software-no improvement. There are no new drivers to be installed.

When you click on File and print - ensure the selectionis in Active sheets (this will ensure that it only prints pages with texts in excel

hmm..now..that sounds more like a software issue, than a hardware issue. Can you check on all version updates for the software from MSoft, and ensure that the drivers for your printer, by application, are up to date. From what I'm seeing, this MAY not be a printer issue.

and, if you want, we do this sort of service call remotely. see my link here for more on that.

http://www.inbusiness4good.net

There's a profile link on top right, that may be of some value, if this becomes unsolvable from your end.

so, what sort of text is it you are attempting to print? what program is in use?

replace the black print cartridge. I guess that the text is B&W. Pictures are printed in color - from the color ink cartridge.