Question about HP Officejet Pro L7680 All-In-One Printer

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Lines of text are being missed out when printing

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You can refer to the link below for a document regarding troubleshooting print quality issues with Officejet Pro L7680.
http://h10025.www1.hp.com/ewfrf/wc/documentSubCategory?tmp_rule=3180&tmp_task=solveCategory&lc=en&dlc=en&cc=us&product=2512009

Posted on Apr 07, 2011

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Posted on Jan 02, 2017

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SOURCE: Missing text lines

This is caused by the black part of the printhead getting clogged and it's very difficult to shift this.

My personal solution has been to switch to a dyebase ink instead of of the pigment ink that HP provide... but as a more practical matter it seems that this sort of clogging happens when the printer is located in a dry, overly warm environment where things like air conditioning, radiators, etc... dry out the air.

If possible, relocate the printer to a more ventilated, cooler area.

Running the cleaning routines should clear the blockage after a couple of times but it may well return so this is by no means a full fix.

Posted on May 12, 2009

FixinFax
  • 3085 Answers

SOURCE: white lines and "missing ink" on printing text & graphics

you have a defective or near empty toner cartridge. Try shaking it side to side

Posted on Jun 11, 2009

57 varieties
  • 1653 Answers

SOURCE: Far right side of the text or picture missing on Dell 3100cn.

Refer to the following table
Cause
Solution
How common*
Contamination in the laser path
1. Clean the laser path. (Remove the laser/scanner assembly and clean the lens.) 2. Replace the laser/scanner assembly
8
Defective fuser.
Replace the fuser assembly
3
Lack of toner or faulty toner cartridge.
Redistribute the toner in the toner cartridge. If the problem continues, replace the toner cartridge.
7

Posted on Sep 30, 2009

son-of-EP101
  • 24 Answers

SOURCE: prints photocopies fine but pages of text have lines missing

Run a nozzle check to see if all inks printing out correctly.

Posted on Apr 11, 2010

  • 128 Answers

SOURCE: We have a MP830 Canon

I service this unit a lot for print quality issues, and most of them come from using non-Canon brand ink. There is a solvent quality to the Canon ink that helps keep the printhead from clogging.
If you are not using it, I recommend it, especially for the big #5 ink tank.
Alignment has nothing to do with the missing print.
Use the cleaning utility in the maintenance area of the printer driver utilities to clean the printhead.
Run the nozzle check, and you should see improvement with each cleaning. Do not run the cleaning more than maybe 5 times, and never use the deep cleaning, you are just wasting a lot of ink.
If you don't see any improvement, stop cleaning and take the unit in for service - we have sonic washers and other effective methods for cleaning and flushing the printheads without damage.
You can replace the printhead yourself, but it will cost less to have it cleaned.

Posted on May 06, 2011

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1 Answer

Canon Printer - Pixma 5000 Trying to print out pages of text. The text is coming out with a line printing normally - then a block of text / lines missing completely - then tops of line or bottom of line...


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

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Prints photocopies fine but pages of text have lines missing


Run a nozzle check to see if all inks printing out correctly.

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Printer keeps skipping lines when printing. very annoying


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.

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Far right side of the text or picture missing on Dell 3100cn.


Refer to the following table
Cause
Solution
How common*
Contamination in the laser path
1. Clean the laser path. (Remove the laser/scanner assembly and clean the lens.) 2. Replace the laser/scanner assembly
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Replace the fuser assembly
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Lack of toner or faulty toner cartridge.
Redistribute the toner in the toner cartridge. If the problem continues, replace the toner cartridge.
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1 Answer

White lines and "missing ink" on printing text & graphics


you have a defective or near empty toner cartridge. Try shaking it side to side

Jun 11, 2009 | HP LaserJet 1100 Printer

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Poor printing quality on text


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





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1 Answer

Same lines won't print


Sorry, but this is impossible, as a "printer problem". This is clearly a "software/buffer/document" problem.

This can ONLY happen (on two printers, same results) if the DOCUMENT has "exclusive" properties or instruction sets, or "invalid data" for the "missing" lines. For example, you may be printing an HTML document with "DO NOT CACHE" meta tag or java instructions about specific lines or form entries. Many sites (like banks, registration, or encrypted mail/login pages) do this as a security measure to prevent critical data from being inadvertently printed (and ending up outside in trash cans for an ID thief to pilfer). Other possibilities: The lines are NOT text data, they might be IMAGES of text, and saved in a format the printer/buffer does not support. Any of these examples would allow the software to DISPLAY the specific (missing) lines of text -yet NOT print them.

To test my theory (almost a certainty really), simply open the document and select PRINT SCREEN key (or use whatever key commands capture the screen as an image). This copies what YOU see, to the clipboard as a single "image" file (instead of a variety of ASCII characters, images, and code).

Next, open "PAINT" in accessories under MSlop (or any IMAGE editor like Photoshop, Gimp, etc)

Select NEW and agree to the screen size you are using (1024x768, 800x600, 1280x800, etc)

Select PASTE from file menu (or CTRL/V keys). Your document will now appear.

Print the document. The "missing lines" will now show up! If the document is too long for one screen shot, you may have to scroll down, recapture (PRINT SCREEN, etc) and paste one or more images into each other before printing it as a single IMAGE.

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