How to Resolve Print Quality Issues on the C1765nf / C1765nfw Dell Laser Printers

How to Resolve Print Quality Issues on the C1765nf / C1765nfw Dell Laser Printers



Table of Contents:

  1. How to Resolve Print Quality Issues on the C1765nf / C1765nfw Dell Laser Printers
  2. The Output is too Light
  3. Toner Smears or Print Comes Off/Stain on Back Side
  4. Random Spots/Blurred Images
  5. The Entire Output is Blank
  6. Streaks Appear on the Output
  7. Pitched Color Dots
  8. Vertical Blanks
  9. Mottle
  10. Ghosting
  11. Fog
  12. Bead-Carry-Out (BCO)
  13. Auger Mark
  14. Wrinkled/Stained Paper
  15. The Top Margins is Incorrect
  16. Color Registration is Out of Alignment
  17. Protruding / Bumpy Paper

1. How to Resolve Print Quality Issues on the C1765nf / C1765nfw Dell Laser Printers

This article provides information on resolving print quality issues on the C1765nf / C1765nfw Dell Laser Printer. Some of the common causes are:

  1. The toner supply or level is low.
  2. The interior of the printer being dirty.
  3. The paper being used.
  4. The brand of toner being used.

For resolving specific print quality issues please refer to the sections below.

Note: It is recommended that only Dell Branded Toners are used in Dell Laser Printers as Dell cannot guarantee compatibility or the print quality of any 3rd party toners.

In this section, some procedures that use the Tool Box can also be performed using the operator panel or Dell Printer Configuration Web Tool. For information on how to use the operator panel and Dell Printer Configuration Web Tool, see "Understanding the Printer Menus and the Dell Printer Configuration Web Tool".

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2. The Output is too Light

  1. The toner cartridges may be low or need to be replaced. Confirm the amount of toner in each toner cartridge.
    1. Check the toner level in the Status tab in the Status Monitor.
    2. Replace the toner cartridges as necessary.
  2. Verify that the print media is not damp and the correct print media is used. See "Supported Paper Types". If not, use the print media recommended for the printer.
  3. Verify that the Paper Type setting in the printer driver matches the print media you loaded.
    1. On the Paper/Output tab in Printing Preferences of the printer driver, check the Paper Type setting.
    2. Load dry (not damp) and corrected print media, and then click Print Test Page in Printer properties of the printer driver.
  4. Disable the Toner Saving Mode in the printer driver.
    1. On the Graphics tab in Printing Preferences of the printer driver, ensure that the Toner Saving Mode check box is not selected.

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3. Toner Smears or Print Comes Off/Stain on Back Side

  1. The print media surface may be uneven. Try changing the Paper Type setting in the printer driver. For example, change the plain paper to thick.
    1. On the Paper/Output tab in Printing Preferences of the printer driver, change the Paper Type setting.
  2. Verify that the correct print media is being used. See "Supported Paper Types". If not, use the print media recommended for the printer.
  3. Adjust the fusing unit temperature.
    1. Launch the Tool Box, and click Adjust Fusing Unit on the Printer Maintenance tab.
    2. Adjust the fixing temperature by turning up the value for your printing media.
    3. Click Apply New Settings.
    4. Click close box to exit Tool Box.

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4. Random Spots/Blurred Images

  1. Ensure that the toner cartridges are installed correctly. See "Installing a Toner Cartridge".
  2. If you use non-Dell brand toner cartridges, install Dell brand toner cartridges.
  3. Clean up the fusing unit.
    1. Load one sheet of paper on the MPF, and then print a solid image all over paper.
    2. Load the printed sheet with the side to be printed on facing down, and then print a blank sheet of paper.

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5. The Entire Output is Blank

If this issue happens, contact Dell Technical Support.


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6. Streaks Appear on the Output

If this issue happens, contact Dell Technical Support.


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7. Pitched Color Dots

If this issue happens, contact Dell Technical Support.


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8. Vertical Blanks

  1. Clean inside the printer and performing test print.
    1. Clean inside the printer by using the cleaning rod. See "Cleaning Inside the Printer".
    2. Click Print Test Page in Printer properties of the printer driver.

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9. Mottle

  1. Adjust the transfer bias.
    1. Launch the Tool Box, click Adjust Transfer Roller on the Printer Maintenance tab.
    2. Adjust the setting for the type of print media being used.
  2. If you use non-recommended print media, use the print media recommended for the printer.

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10. Ghosting

  1. Adjust the transfer bias.
    1. Launch the Tool Box, and click Chart Print on the Diagnosis tab.
    2. Click Ghost Configuration Chart.
      The ghost configuration chart is printed.
    3. Launch the Tool Box, and click Transfer Roller Refresh Mode on the Printer Maintenance tab.
    4. Check the check box next to On, and then click Apply New Settings.
    5. Click Chart Print on the Diagnosis tab.
    6. Click Ghost Configuration Chart.
      The ghost configuration chart is printed.
  2. The print media surface may be uneven. Try changing the Paper Type setting in the printer driver. For example, change the plain paper to thick.
    1. On the Paper/Output tab in Printing Preferences of the printer driver, change the Paper Type setting.
  3. Adjust the fusing unit temperature.
    1. Launch the Tool Box, and click Adjust Fusing Unit on the Printer Maintenance tab.
    2. Adjust the fixing temperature by turning up the value for your printing media.
    3. Click Apply New Settings.
    4. Click close box to exit Tool Box.
  4. If you use non-recommended print media, use the print media recommended for the printer.

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11. Fog

  1. Is the whole page printed light?
  2. Start Clean Developer.
    1. Launch the Tool Box, and click Clean Developer on the Diagnosis tab.
    2. Click Start.

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12. Bead-Carry-Out (BCO)

  1. If the printer is installed in a high altitude location, set the altitude of the location.
    1. Launch the Tool Box, and click Adjust Altitude on the Printer Maintenance tab.
    2. Select the value close to the altitude of the location where the printer is installed.

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13. Auger Mark

  1. The toner cartridges may be low or need to be replaced. Confirm the amount of toner in each toner cartridge.
    1. Check the toner level in the Status tab in the Status Monitor.
    2. Replace the toner cartridges as necessary.
  2. Start Clean Developer.
    1. Launch the Tool Box, and click Clean Developer on the Diagnosis tab.
    2. Click Start.

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14. Wrinkled/Stained Paper

  1. Verify that the correct print media is being used. See "Supported Paper Sizes". If not, use the print media recommended for the printer.
  2. Check the crease. Is the crease within 30 mm of the four edges of the envelope?
  3. Does the envelope have a flap on the long edge?
    Load the envelope long edge feed in the MPF with the flap open and facing up.
  4. Load the envelope in the MPF with the flap open and facing up.
    Use a different size envelope.

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15. The Top Margins is Incorrect

  1. Ensure that the margins are set correctly on the application being used.

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16. Color Registration is Out of Alignment

  1. Execute auto color registration adjustment.
    1. Launch the Tool Box, and click Registration Adjustment on the Printer Maintenance tab.
    2. Clear the On check box for Auto Registration Adjustment.
    3. Click Start next to Auto Correct.
  2. Clean the CTD sensor.
    1. Clean the CTD sensor. See "Cleaning the Color Toner Density (CTD) Sensor".
    2. Launch the Tool Box, and click Registration Adjustment on the Printer Maintenance tab.
    3. Clear the On check box for Auto Registration Adjustment.
    4. Click Start next to Auto Correct.
  3. Print the color registration chart and manually correct the color registration.
    1. Click Registration Adjustment on the Printer Maintenance tab.
    2. Clear the On check box for Auto Registration Adjustment.
    3. Click Start next to Print Color Regi Chart.
      The color registration chart is printed.
    4. Select the value with the straight line. See "Adjusting Color Registration" for details.
    5. Click Apply New Settings.
    6. Click Start next to Print Color Regi Chart to print the color registration chart again.
    7. Adjust the values for every color until the lines at 0 are the straightest.

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17. Protruding / Bumpy Paper

  1. Clean up the fusing unit.
    1. Load one sheet of paper on the MPF, and then print a solid image all over paper.
    2. Load the printed sheet with the side to be printed on facing down, and then print a blank sheet of paper.

If these steps do not correct the problem, please contact Dell Technical Support.

Printer support
More information can be found in the User Guide for your model printer, or visit our Printer Support site for additional information, troubleshooting articles and videos.

Purchase Toner and other Dell Laser Printer Supplies (select your country/region in the dropdown shown)

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It is recommended that only Dell Branded toner, drums, transfer rollers or other consumables are used in our laser printers. Dell cannot guarantee compatibility or the print quality of any 3rd party consumables.



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Article ID: SLN295724

Last Date Modified: 01/28/2019 12:24 PM


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