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What Ink Does the Canon PIXMA iP7220 Use?
What Ink Does the Canon PIXMA iP7220 Use?
May 22, 2026 —
Last updated: September 27, 2026. Reviewed by William Elward, founder of Castle Ink.
Quick answer: what ink does the Canon PIXMA iP7220 use?
The Canon PIXMA iP7220 uses five individual ink tanks: P...
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Pigment vs Dye Ink: What's the Difference and Which Is Better?
Pigment vs Dye Ink: What's the Difference and Which Is Better?
September 16, 2026 —
Quick answer: dye ink is colorant fully dissolved in liquid, so it soaks into paper and produces bright, saturated color — ideal for glossy photos, but less resistant to water and fading. Pigment i...
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Printer DPI Explained: DPI vs PPI and What Resolution You Need
Printer DPI Explained: DPI vs PPI and What Resolution You Need
October 30, 2019 —
Quick answer: DPI (dots per inch) is how many tiny dots of ink a printer can place in an inch of paper. PPI (pixels per inch) is how much detail is in your image file. For sharp results, set up pho...
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Laser Printer Streaks and Lines: What Causes Them and How to Fix Each One
Laser Printer Streaks and Lines: What Causes Them and How to Fix Each One
September 16, 2026 —
Quick answer: the direction and color of a laser printer streak tell you which part is at fault. Vertical black lines in the same spot on every page usually mean a dirty corona wire or a scratched ...
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Why Is My Printer Printing Blurry? 10 Causes and How to Fix Each One
Why Is My Printer Printing Blurry? 10 Causes and How to Fix Each One
September 30, 2026 —
Published September 30, 2026. Written by William Elward, founder of Castle Ink.
Quick answer
Blurry or fuzzy printing is usually caused by one of five things: the wrong paper type setting (for exam...
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Printer Test Page: Free Printable Color and Black & White Test Sheet (PDF)
Printer Test Page: Free Printable Color and Black & White Test Sheet (PDF)
September 16, 2026 —
Quick answer: a printer test page is a sheet of solid color blocks, gradients, fine text and line patterns that shows at a glance whether every ink or toner channel is firing correctly. Download ou...
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How to Get Printer Ink Off Your Hands, Skin, and Clothes
How to Get Printer Ink Off Your Hands, Skin, and Clothes
August 9, 2026 —
Short Answer
For skin, hand sanitizer or rubbing alcohol followed by soap and water usually lifts ink within a minute of rubbing. For fabric, rinse the back of the stain with cold water, dab with 9...
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May 22, 2026 — Last updated: September 27, 2026. Reviewed by William Elward, founder of Castle Ink. Quick answer: what ink does the Canon PIXMA iP7220 use? The Canon PIXMA iP7220 uses five individual ink tanks: P...