Question about Konica Minolta magicolor 7450 Laser Printer

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Dark Blurry Ink Line

Everytime I print a document with blue colours in it, there is a blurry line of darker colour across the entire page (front and back). It is about 5mm in thickness.
I have changed to a brand new color cartridge and it still happens.
Please help this is URGENT!!  Thank you.

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When I print darker color images I get what I call Zebra stripes across the picture on a slant about 1/2 inch apart. Changed the toner and the drums are at 45% capacity. Any suggestions. Thank you.

Posted on Feb 13, 2009

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Check the drum and see if there is any color residue on it.

Posted on Sep 03, 2008

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Posted on Jan 02, 2017

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1 Answer

Trying to print documents, white background with black typed words. Problem I have is the printed documents have solid dark blue and solid black ink and the words don't show.


Are the ink cartridges installed in the correct colour order?
Have you printed a test page through the printer's own control panel? What was the result?
Open a new document, using the default settings. Key in some test text. Try printing. What is printed?

Jan 06, 2015 | HP Office Equipment & Supplies

2 Answers

I want to print in white ink on black paper. I have a Canon MX310 printer


Inkjet printer inks are dye-based, and that's the reason.

Perhaps this will help explain things. You know those little boxes of food colouring you can buy in the supermarket - the ones that have four little bottles of colour - red, blue, yellow and green. Within reason you can combine these to turn white icing into most colours. Use nothing and the icing is still white or use everything and the icing will go a black-brown colour. Use a couple of drops of red and blue and you'll get purple.

But if you start with black icing, there's nothing you can add that will make it anything but black.

It's the same with your inkjet printer - because white is obtained by not having any ink print on the white paper. But of course that only works when the paper is white. Naturally you'll get different results on all colours of paper, decreasing as the paper gets darker in colour. Print blue on yellow paper and you should get green printing.

The only way to print in white is to do what commercial printers do - use opaque inks and include a white ink in the process. And as far as I know there's no commercial ink that will do that with an inkjet printer.

I can hear lots of you muttering "Rubbish. Of course you can print light colours on dark paper." Well all I can say is, have fun experimenting, but you won't be able to do it.

About the only way to achieve the sort of result you may be after is to print the job then trim it and paste it in place. For instance, if you want to print onto a black or dark-coloured T-shirt then print onto white transfer material, trim the print to size and iron it in place.

Dec 29, 2010 | Office Equipment & Supplies

1 Answer

Lines running horizontally across the printed colour page


Checked ink cartridge's, two had dried out, still had ink in them but the exit apertures were blocked.
So new set of ink cartridges and problem fixed.
Thank you
Jim

Feb 05, 2010 | Canon PIXMA MP610 InkJet Printer

1 Answer

My printer is printing blurry lines when im trying to print. grr


Are you using Inkjet paper? or normal office rag? The inkjet paper dosent let the ink soak into it and make lines look blurry, it is amade to dry the ink very fast before it can leak around... Get some good quality "inkjet" paper, you should see better results.
Leave feedback good or bad.

Jan 21, 2010 | Brother DCP-385C Stylish Colour Inkjet...

1 Answer

Ricoh CL7000 text is blurry/fuzzy


probably only when printing in colour? Black only, is ok right?
It needs to have it's line adjustment procedure done. This is a series of complicated trial and error adjustments performed in service mode that the individual colours are adjusted based on printouts generated by the printer. Can only be adjusted by a service tech with experience with this adjustment.

Jul 11, 2009 | Ricoh Office Equipment & Supplies

1 Answer

Fuzzy ink


probably dirty or broken print head. suggest you replace it or get new blue cartridge if your machine has seperate colour cartridges.

Jun 17, 2009 | Brother MFC-5440CN All-In-One InkJet...

2 Answers

I put a new ink cartrige and printer prints low coulour tone.


A technique to improve print quality is to try and clean the cartridge nozzles. You may clean the cartridge by following the steps given below: 
1. Go to the "Lexmark solution center." This can be done by clicking on "Start," go to "Programs" and Lexmark printer group. Click on the "Lexmark Solution center." Next click on the "Maintenance" Tab.  2. Select "Clean and Fix Horizontal streaks."  Click on "Print". This will produce a printed page. 
The colors that you should see here are black, yellow, magenta (a reddish purple) and cyan (a dark sky blue). You should notice the diagonal lines above and below the solid horizontal lines. These diagonal lines should be solid from left to right with no gaps. 
If there are gaps in the lines or the print diminishes across the page, you should run the "Clean Print Nozzle" page a couple more times to try and clear it up. If you still have gaps at the top and bottom, you should "wick" the cartridges by following the steps given below: 
1. Please open the "Solution center" again and go to the "Maintenance" Tab.  2. Select "Install color/black cartridge" and remove the cartridge or cartridges from the printer.  3. Get a damp paper towel.  4. Set the ink cartridge right side up on the damp paper towel so that the ink nozzles are against the towel and hold the cartridge in this position for about 15 seconds.  5. Now wipe the print head (on the bottom where the ink comes out) across in one direction only (left to right) until it looks clean.  6. Next dab the cartridge on the towel to make sure that the ink is flowing.  7. Snap the cartridges back into the printer.  8. On your computer, select "Old Cartridge install."  9. Repeat the "Clean Nozzle Page" one more time. If this fails to address the problem the entire procedure may need repeating.

May 26, 2009 | Lexmark Color JetPrinter 5700 InkJet

1 Answer

Prints blurry every other line with black color


Hi,

Is it the ink cartridge contacts you already cleaned? If so, then you can also clean it using the tools menu from the printer panel:

-press setup menu, then go to tools
-select clean print cartridge and press ok
-it will print a test page. If the printout is good, you can try printing again.

I hope this helps.

Regards,

Feb 24, 2009 | HP OfficeJet 7410 All-In-One InkJet...

1 Answer

Line across the page


  1. Make a copy by using the platen mode and ADF.
  2. Send a print from your PC or print out the Counter list from User tools/counter button.
  3. Try printing one colour at a time - Black, Cyan, Yellow or Magenta.
If when printing, there is no line across the pages, so you need to clean the optics mirrors and exposure glass.
If the line appears in both 1 and 2 mentioned above, you have the fuser roller or drum damaged.
If the line appears in all colour prints, check the fuser or transfer belt.
If it happens only with one particular colour, check that drum unit.

Good luck and please rate me, thanks.

Feb 02, 2009 | Gestetner DSc328 Copier

1 Answer

Printer Problem - Konica Minolta 7450


If the print is a dismal gray rather than a sharp black, you are probably almost out of toner. This can manifest itself evenly across the entire page or in splotches or stripes, depending on the printer.
Sometimes you can wring a little bit more out of a toner cartridge by taking it out and gently shaking it from side to side (never up and down, as toner can spill out). You can also try turning up the printer’s contrast adjustment, if it has such a knob (usually on the back side if it exists). Faded print can also result from a dirty corona wire, because a dirty wire inhibits a full electrical charge from being passed.
If the printouts are consistently varied in density, and you have to frequently remove the toner cartridge and shake it to redistribute the toner inside it, make sure the printer is sitting on an even, flat surface.
Horizontal lines
A horizontal line on the printout is probably the result of a dirty or damaged roller. There are lots of rollers in the printer, and you can use the space between the lines on the page to determine which roller is causing the problem. Measure the distance between the errant lines on the page and then use Table A to determine which part might be causing the problem. Table A
Distance between lines
Faulty part
0.5”
Registration assembly
1.5”
Upper registration roller
1.75”
Lower registration roller
2.0”
Toner cartridge developer roller
2.56”
Lower fusing assembly roller
3.16”
Upper fusing assembly roller
3.75”
Toner cartridge photo drum
Regularly spaced splotches
If there are evenly spaced black spots but they don’t extend all the way across the page, the problem is probably a scratch or flaw in the drum or a build-up of toner on the fusing roller. If the spots are less than three inches apart vertically, it’s probably the drum, because the drum has a larger diameter than the fusing roller.
Vertical line on edge of page
This can indicate an almost empty or faulty toner cartridge or (less frequently) some spilled toner inside the printer.

Sep 03, 2008 | Konica Minolta DiMAGE Z10 Digital Camera

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