When i print a page black ink text thin blue lines appear also a blue ink blob

pull out the black cartridge then get a tissue paper try pressing the nozzle again the tissue paper but not so hard then release look for the straight line that appear on the tissue paper if it is not change it

It looks to me that your non Canon cartridge has blocked the print head. I see this all the time. Remember the compatables are not pigment based but just watered down ink so you can get it to flow through a syringe into the cartridge. This however is the classic outcome of trying to save a few pennies on an expensive bit of kit!

If it's a thin, sharp line, it's just a blob of ball-point pen ink on the scanner glass. Lift the lid, and you'll see the narrow strip of glass that the scanner uses when you feed a document through the feeder. Clean that with a rag dampened with window cleaner, or, better yet, alcohol. Even a dot of ink too small to see will show as a solid black line on anything you copy, scan, or fax via the doc. feeder.
Don't use so much cleaner that it runs under the glass.

Did you use Epson Genuine Cartridges?

ALL…. Epson & Brother Requires Genuine Epson Cartridges. !!!!!!!!
That sounds like your problem.

In Purchasing Epson's CX 5400, CX4600, & CX7400 and more, I found out that Epson does not like Generic Printer Cartridges. I also Purchased a Brother. That also does not like Generic Print Cartridges. Color that should be Yellow, will turn out Green, Blue Brown, etc. These printers have a CHIP that will detect if it is Generic or Genuine. When they see it’s Generic Cartridges, it will print lines thru the words, stripes across the picture and also do a mix match with the colors. It also will not let you print anything, if only one of the cartridges is empty.

I wanted to print only Black, and would not let me, because I did not have any ink in one of my cyan cartridges. Go figure.

That's what these Companies do., so they can keep selling the ink cartridges. Some Printers, are able to use Generic, and some are refillable. Some you can refill them up yourself and I heard, quite MESSY.

So I learned, thru trial and error, that you must use the ORIGINAL Genuine Cartridges for these PRINTERS. Some people say some models work fine compatible, but not mine.......

I had to replace the printer, but Epson, Lexmark & Brothers are always on sale. My Brother & Epson cost me $50.00 with Rebate. .

This is the only advice I can give you. If you find this helpful, pls rate me.

Thanks and Good Luck :0)

Open the HP Printer Toolkit (this software was installed from the CD-ROM that came with the HP printer) and run a "cleaning cycle",
because some of the ink-jets are clogged, which results in the "all-white" horizontal lines, where some part of that line should be black.

blue ink does not work.

The PGBK cartridge is a pigment black ink, while the others use a dye for coloration. The pigment black is used when printing text and other documents. The dye ink is used when printing photos and other colored documents. The dye black is used in conjunction with the color (dye) inks to provide tinting and color gradation, and therefore is not used nearly as much as the pigment black unless you use your printer only for printing photos.

If you're printing text and documents, you will need to buy another pigment black (PGBK) cartridge.

Perhaps the CMY color heads need alignment. If you have not already done so, run a head alignment from the driver maintenance section. It will print out a page containing several lines and text, and request you select the closest-aligned images. After this is done, do another image print to check for improvements.
Normally, the printer uses the black cartridge for text and the CMY inks for images (even for black on photo and specialty paper). So when you are printing normal text pages on plain paper, only the black ink is used. A good check for this would be to print a normal text page, but select photo paper in the driver to trick the printer into using the CMY inks to make a substitute black text page. If this looks ok, then you are having issues other than cartridge alignment.

hi, i was having the exact same problem with my printer. and i also tried reinstalling the driver. after reading your post i decided to see if the printing problem occurred when i used the other colors, and it looks like it's only a problem with the black ink. i printed out a sheet with the text in red and another in blue and they came out perfectly. but the black grid that surrounded the blue text, still looked problematic.

so... that means that the black ink is the problem. i haven't tried putting in a new cartridge. did you say that your problem occurred after you put in a new black cartridge, or did you try putting in a new black cartridge and you still had the same problem?

I think you have to clean the print head.and if cleaning doesn't help you may have to get a new print head.