Question about Lexmark C720 Laser Printer

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Poor printing quality. Colors not showing up, white line

Colors are very light and some not even showing up properly. Changed color cartridges and cleaned out printer. Replaced large part in middle containing rollers, oil bottle etc., replaced air filter and roller which sets on top of the toner charger developer. I have cleaned and cleaned.
Also have white line down left side of paper.
Colors just not coming through...can't read any words written in yellow and greens are just not coming through much either. Colors are just faded looking.

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Posted on Jan 02, 2017

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SOURCE: toner stuck on green roller of cartridge so i'm getting poor print quality

You need to replace the cartridge. it is faulty. there is a spot on that cartridge that is not properly magnetized so it is retaining toner instead of releasing it. you can clean it off but will most likely continue to have the same problem. Clean it with a lint free cloth or paper towel DRY. Do not use any chemicals or water if the toner is salvageable then that would ruin it.

Posted on Oct 22, 2008

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SOURCE: Lexmark T644 left side of prints faded

pull the toner cartridge out leave the bottom front cover open and bring down the top cover. with a flashlight check to make sure the charge roller is comming down straight if it comes down even. check to make sure the transfer roller has spring tension on the left side if the pring tension is present you will need to clean the flat leading edges of the mirror motor drive inside of the scanner located under the top cover.

Posted on Nov 07, 2009

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Hp officejet 6500 e709n print quality poor even after replacing print head


For severe print quality/missing color issues there could be an air bubble/air gaps in the printer ink lines or a portion of the PRINTHEAD is dry, so you should first perform a Clean PrintHead procedure from your printer control panel.
NOTE: If one or more the colors were previously dry fired during printing (i.e. if you continued printing using only a few colors to one, air may have been accidently ingested into the ink lines between the cartridge(s) and PRINTHEAD. To recover from this problem, you may have to run the Clean Printhead procedure 2-3 times.
If a problem persists then it is suggested to review the steps outlined on the following HP 920 support pages, including printhead removal/printer cleaning and service station cleaning. It is suggested you refer to printer manufacturer instructions first as the Inkjet411 procedures are provided for general guidance purposes only. A dirty service station can cause poor image quality and/or ink cross-contamination between different colors:
http://inkjet411.retailinkjet.com/?page_id=1495
If the problem still cannot be corrected, then the PRINTHEAD may be dry and may need to be flushed (i.e. with warm water as it could have dried out, but this is a function of how much you print). Remove and soak in hot water for 5 minutes...thoroughly dry printhead prior to re-installing. Retest.
For more information please visit:
http://inkjet411.retailinkjet.com/?page_id=856
Worst case scenario the PRINTHEAD may simply be electrically damaged or at end-of-life (typically fails between 3,000 and 5,000 printed pages) and may require replacement, usually accompanied by error messages like Incompatible Printhead or Ink Delivery/System Failure. NOTE: The PRINTHEAD will eventually fail in time. For more information on the how the PRINTHEAD works, watch the video here: http://inkjet411.retailinkjet.com/?page_id=1983
To verify Printhead performance, run the Tap 41 diagnostic test, (Pen Status: Pen OK).....for printer model instructions please visit:
http://www.Inkjet411.com

Sep 25, 2012 | HP Officejet 6500 Wireless All-in-One...

1 Answer

"Check Color Cartridge" displays even after replacement of cartridge -though I don't think original cartridge was empty- and stops printer from printing. The new cartridge is installed properly, and...


  1. First, check your cartridges. HP cannot guarantee the quality of remanufactured or refilled cartridges.
  2. Second, make sure your paper is not causing the problem. Paper that does not accept ink well can cause your images to smear or bleed. Plain paper is not the best choice for high-density graphics. Click here to see how to pick the best paper for your project .
  3. If the paper is not the problem and you are using genuine HP cartridges, print a clean test to see if the printer and cartridges are functioning properly. Load the printer with clean, plain, white paper and print a clean test page. To see how to print a clean test page, see your printer's User's Guide , or see HP Deskjet Printers - How To Print Internal Tests , or HP All-in-One Product Family - Printing Self-Test Reports .
  4. Evaluate the clean test page. Different printers produce different pages, but you should recognize elements from the examples below on your test page. In general, cartridge and printer problems are indicated by streaks, missing colors, or wrong colors.
    • Examples from a good printer and cartridges (your test page may not look exactly like this): Figure 1: Solid colors that match color dots on cartridge labelc00059224.gif Figure 2: Pattern unbroken, or broken in only a few placesc00059225.gif

      c00059227.gif If your test page looks more like the good examples above than the bad examples shown in the next two sections below, the printer and cartridges are probably not causing the problem. Click here to continue troubleshooting .
    • Examples from a failing printer or cartridges - streaked or broken bars or lines Figure 3: Fading, missing, or streaked bar - low-ink or empty cartridge, clogged nozzles, or electrical problemsc00059228.gif

      c00059229.gif

      c00059230.gif

      Figure 4: Color completely missing (magenta bar missing below)c00290898.gif Figure 5: Lines broken randomly - clogged nozzlesc00059231.gif

      Figure 6: Lines broken in pattern - dirty contacts or other electrical problemsc00059232.gif

      c00059233.gif

      Figure 7: Color completely missing (magenta pattern missing below)c00290899.gif If your test page looks like these examples, you probably have a cartridge that is empty, has clogged nozzles, or dirty contacts. Click here to continue troubleshooting .
    • Examples from a failing printer or cartridges - colors do not match the color dots on the cartridge label (Note: do not compare the test page colors to the colors of the examples on this web page. Your monitor may not display the colors properly). c00059234.gif c00059235.gif If your test page looks like these examples, you probably have a cartridge in which the inks have mixed. Click here to continue troubleshooting .

Oct 26, 2010 | HP OfficeJet V40 All-In-One InkJet Printer

1 Answer

Poor photo printing quality with new color cartridge


Shaking these cartridges does nothing except give you a little exercise. If this is a brand new HP cartridge you are having problems with I would return it to the store you purchased it from. HP brand cartridges should not give you these problems right out of the box. The print defects you are seeing are due to a dried up or clogged print head. If you like you can try hydrating the print head on a water soaked paper towel until the ink starts flowing, but there's a risk you will cross contaminate the colors.

Oct 08, 2009 | HP PhotoSmart C4480 All-in-One Printer ...

1 Answer

HP 1600 color laser printer--colors are out of sync


Check the following information please.

General print quality issues

Solving issues with color documents This section describes issues that can occur when you print in color. Color document issues Problem Cause Solution Only black is printing when the document should be printing in color.

c00659983.gif Color mode is not selected in your program or printer driver. Select color mode instead of grayscale mode. The correct printer driver might not be selected in the program. Select the correct printer driver. The device might not be correctly configured. Print a Configuration page.

One or more colors are not printing, or are inaccurate.

c00659984.gif Sealing tape might be on the print cartridges. Verify that the sealing tape has been completely removed from the print cartridges. The media might not meet HP specifications. Use a different paper, such as high-quality paper that is intended for color laser printers. The device might be operating in excessively humid conditions. Verify that the device environment is within humidity specifications. One or more print cartridges might be low. If you are using non-HP print cartridges, no messages appear on the device control panel or in the HP Toolbox. Replace any low print cartridges. The control panel is set for override. Replace low or empty print cartridges. A color is printing inconsistently after you load a new print cartridge.

c00659985.gif Another print cartridge might be low. If you are using a non-HP print cartridge, it might be low or empty but you will receive no indication. Remove the print cartridge for the color that is printing inconsistently and reinstall it. The control panel is set for override. Replace low or empty print cartridges. The colors on the printed page do not match the colors as they appear on the screen.

c00659986.gif The colors on your computer monitor might differ from the device output. Select Screen Match in the Color tab of the printer driver. If extremely light colors or extremely dark colors on screen are not printing, your software program might interpret extremely light colors as white or extremely dark colors as black. If possible, avoid using extremely light or extremely dark colors. The media might not meet HP specifications. Use a different paper, such as high-quality paper that is intended for color laser printers. The finish on the printed color page is inconsistent.

c00659987.gif The media might be too rough. Use a smooth paper or print media, such as a high-quality paper that is made for color laser printers. Generally, smoother media produces better results. Repetitive image defect ruler Use a repetitive image defect ruler to measure occurrences of repetitive image defects to help solve image quality problems. Place the ruler next to the first occurrence of the defect on the page. Find the distance between identical defects and see the Repetitive image defects table to identify the component that is causing the defect. Repetitive image defects Measurement Component 24.7 mm0.97 inch Developer sleeve 26.7 mm1.05 inches Charge roller 32.9 mm1.3 inches RS roller 37.7 mm1.48 inches Transfer roller 54.5 mm2.15 inches ETB rollers 56.6 mm2.22 inches Fuser sleeve 62.8 mm2.47 inches Pressure roller 75.4 mm2.97 inches OPC
Have a good evening

Jun 18, 2009 | HP LaserJet 1600 Printer

1 Answer

Color cartridge is new. quality is poor. Have


make sure the cartridge is firmly seated in the carriage. If so you may just have a defective cartridge. Return it to Walmart and exchange it as a defective cartridge otherwise.

Jun 13, 2009 | Lexmark X6170 All-In-One InkJet Printer

1 Answer

Canon Pixma MP780 print quality fault


My daugther also has a Pix780 so I just replaced my print head with hers and now the colour prints great. I guess I'll try cleaning mine first and if that doesn't work, I'll purchase a new one when the dealer who services Canon opens on Tuesday. I could also buy one from the Canon website for something like $60. I copied the following from Canon's sites under the FAQs. Sounds like you may need to replace your printhead.

How does a Canon Printhead work?
The printhead delivers very small drops of ink onto the paper. The ink from the cartridge is transported via small tubes. Heating elements heat the tubes, creating a small bubble of ink. The heating element determines the size of the drop to be applied to the paper.

How do I know I may need to replace my printhead?
There are a few symptoms that may indicate printhead failure or a clogged printhead. If the following symptoms continue even after replacing the ink cartridges and trying the troubleshooting steps in your user's manual or those listed below, you may need to replace your printhead:
  • Pages come out blank, or you see poor print quality
  • Pages you print appear to be missing colors
  • Colors on the printed page are quite a bit different from what shows on the screen
  • Horizontal white lines or light-colored lines or light streaks appear throughout the page

Why would the printhead have problems?
After hours of printing, the heating elements may fail after being turned on and off hundreds of thousands of times. The printhead can also become clogged or blocked with paper debris or solidified ink. If your print quality is poor or your printer will not print at all, it may be time to change your printhead.

Aug 29, 2008 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

C88 / T060 cartridge refilling problem


sounds lke your yellow nozzle not working properly...had same issue on lexmark printer, ended up geting this epson...learnt from my mistakes...perhaps it ran dry? or you left the yellow cartridge out longer than the rest....only you might know what happened

Mar 22, 2008 | Epson Stylus C88 InkJet Photo Printer

1 Answer

Print quality is poor


if you replace the black ink cart with an original one then it's the print head
Solution: Cleaning the Print Head - C555 / C560 / C635 / C530 / C545

Untitled Document Follow this procedure to clean the BJ cartridge print head:
1. Press c755funckey.gif 2. Press c755cleankey.gif 3. Use c755down.gif or c755up.gif to select the [HEAD CLEANING]..
4. Press c755set.gif.
The MultiPASS cleans the print head.

Feb 12, 2008 | Cannon MULTIPASS C530 Printer

2 Answers

Blue lines running through my image


Did u use the original ink cartridges or compatible ones or refilled?

Jan 18, 2008 | Epson Stylus CX6000 All-In-One InkJet...

1 Answer

Printer


The cartridge needs cleaning. There are several things you can try. Using a wet paper towel, you can wipe the gold portion of the cartridge to try and draw out ink, or you can dunk the entire cartridge in warm water for a couple minutes or so (I have done this with success). The process is more clearly explained here:

http://www.usainkcartridges.com/faq.html

Jan 17, 2008 | Computers & Internet

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