Canon IP8750: Troubleshooting Black Dots and Scratches on Prints

Are you experiencing the frustration of finding random, dark black dots marring your glossy paper prints from your Canon IP8750 printer? Do you also notice scratches or marks on the left side of the page, seemingly caused by the printer head? You're not alone. This article aims to delve into the potential issues causing these print anomalies and provide actionable solutions.

Identifying the Problem

User's Dilemma: The user reports encountering dark black dots in black spaces on glossy paper prints, accompanied by scratches on the left side of the page. Even after manual and automatic print head alignments, deep cleaning, and 5000+ pages of previous flawless printing, these issues persist.

Nozzle Check and Paper Type Investigation

User's Observations:

• Nozzle check prints are perfect.
• The issue is specific to black solid color on gloss paper; plain paper prints do not exhibit the problem.

Community Input:

• The printer uses pigment black for normal paper and photo dye black for glossy paper, controlled by the paper type selection.
• Circular scratches on the paper suggest possible scratchy dust; user advised to check if Canon Paper is being used and wipe it with a fine cloth.
• Black spots might be related to issues in the paper coating; suggested testing with a solid cyan spot.

Analyzing Possible Causes

1. Paper Quality:
   • Investigate the source and quality of the glossy paper. Ensure it's compatible with the Canon IP8750 and free from scratches or defects. Consider using Canon Paper for optimal results.
2. Ink Type Mismatch:
   • Verify that the correct black ink type is selected for glossy paper in the printer driver. Ensure it matches the recommended settings for photo dye black.
3. Dust or Lint:
   • Consider the possibility of dust or lint blocking the printhead during printing. Regularly clean the printer area and paper feed path to minimize such obstructions.
4. Printhead Damage:
   • Reflect on the manual cleaning process; damaged printhead components may cause unexpected issues. If concerned, consult with Canon support or a professional technician for further assessment.

Additional Insights

• Print Head Motion:
  • Circular scratches are unlikely to result from the linear motion of the printhead. Focus on paper quality and potential contaminants.
• Community Support:
  • Collaborate with online communities, forums, or Canon's official support channels for additional insights and troubleshooting tips.

Conclusion

As you navigate through these troubleshooting steps, remember that print quality issues often have multiple factors at play. Regular maintenance, correct paper selection, and adherence to recommended settings can significantly enhance your printing experience. If problems persist, seeking professional assistance or engaging with the Canon user community can yield valuable solutions.

For more tech insights and troubleshooting tips, follow our YouTube channel here, explore our tech blog, or visit our local store in Greensboro, North Carolina. Happy Printing!