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How to Print a PDF on Windows, Mac, iPhone and Android (Plus Fixes When It Won't Print)
How to Print a PDF on Windows, Mac, iPhone and Android (Plus Fixes When It Won't Print)
September 28, 2026 —
Published September 28, 2026. Written by William Elward, founder of Castle Ink.
Quick answer
Open the PDF, press Ctrl+P (Windows) or Cmd+P (Mac), pick your printer, and click Print. On a phone, ope...
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What Ink Does the Canon PIXMA TS7720 Use?
What Ink Does the Canon PIXMA TS7720 Use?
September 23, 2026 —
Quick answer: The Canon PIXMA TS7720 uses two FINE cartridges: PG-285 Black and CL-286 Color (tri-color). The high-yield PG-285XL and CL-286XL fit the same slots and print a little over twice as ma...
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How to Fix Printer Color Problems
How to Fix Printer Color Problems
October 30, 2019 —
Last updated: September 24, 2026.
Quick answer: When a printer prints the wrong colors, the usual cause is one clogged or empty color channel. A missing color makes everything else look off: no yel...
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What Ink Does the HP OfficeJet 8025 Use?
What Ink Does the HP OfficeJet 8025 Use?
May 23, 2026 —
Last updated: September 25, 2026.
Quick answer: The HP OfficeJet 8025 uses four HP 910 cartridges: black, cyan, magenta and yellow, or the high-yield HP 910XL versions (about 825 pages each). Castl...
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Printer Ink Cost Calculator: See What Your Printer Really Costs Per Page
Printer Ink Cost Calculator: See What Your Printer Really Costs Per Page
June 20, 2026 —
Last updated: September 25, 2026.
Quick answer: To find what your printer really costs, divide the cartridge price by its rated page yield: cost per page = price ÷ yield. In our August 2026 Printer...
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What Ink Does the HP DeskJet 1255 Use?
What Ink Does the HP DeskJet 1255 Use?
September 2, 2026 —
Quick answer: The HP DeskJet 1255 uses HP 67 cartridges — a 67 black (3YM56AN) and a 67 tri-color (3YM55AN) — or the high-yield HP 67XL black (3YM57AN) and tri-color (3YM58AN). Two cartridges, same...
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How to Print From an iPad: AirPrint, HP, Canon, Epson & Brother (Plus Fixes)
How to Print From an iPad: AirPrint, HP, Canon, Epson & Brother (Plus Fixes)
September 30, 2026 —
Published September 30, 2026. Written by William Elward, founder of Castle Ink.
Quick answer
To print from an iPad, make sure your printer supports AirPrint and is on the same Wi-Fi network as the...
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September 27, 2026 — Published September 27, 2026. Written by William Elward, founder of Castle Ink. Quick answer Yes, new printers come with ink, but usually a starter amount. Many inkjets ship with setup or starter c...