When to Replace Printer Parts

Printers are surprisingly repairable — most failures that feel like “time for a new printer” are actually single components that have worn out. Here’s how to tell when a part has reached the end of its life and whether replacing it is worth the cost.

Print heads (inkjet)

When to replace

Print heads typically outlast several sets of cartridges, but they do fail eventually. Signs a print head needs replacing:

• Missing lines or gaps that persist after 3+ cleaning cycles
• Ink smearing that cleaning doesn’t fix
• Colors completely absent (not just faded) after cartridge replacement
• Error codes indicating print head failure (B200 on Canon, Service Required on Epson)

Is it worth replacing?

Depends on the printer. On HP printers, the print head is built into the cartridge — a new cartridge is a new print head. On Epson and Canon, the print head is a separate part. Replacement print heads cost $30–$80 depending on the model. If the printer itself cost $50, buy a new printer. If it cost $200+, a print head replacement makes financial sense.

Ink cartridges

When to replace

Replace when the printer alerts you to low ink or when print quality noticeably degrades. Don’t wait until completely empty — running a cartridge completely dry can damage print heads (especially on Epson and Canon where the head isn’t part of the cartridge).

OEM vs. third-party

Third-party cartridges are cheaper and usually work fine for documents. For photos or archival prints, OEM cartridges produce more consistent color accuracy. Some printers (particularly Brother and newer HP models with DRM chips) may reject third-party cartridges entirely or after firmware updates.

Paper feed rollers

When to replace

Rollers are rubber and wear smooth over time. Signs they need replacing:

• Misfeeds that persist after cleaning the rollers with isopropyl alcohol
• Multiple pages feeding at once (double-feeding)
• Paper consistently not picking up from the tray
• Visible glazing or cracking of the rubber surface

Is it worth replacing?

Roller kits for popular printer models cost $15–$40 and are straightforward to install on most consumer printers. This is almost always worth doing on a mid-range or higher printer. Searching “[your printer model] roller kit” on Amazon will usually turn up the right parts.

Waste ink pads (Epson, some Canon)

When to replace

When the printer displays “Ink Pad Near End” (Epson E-11) or “Ink Pad is at the end of its service life” (E-12). Epson printers are designed to stop printing once this counter hits a limit, as a safety measure to prevent waste ink from leaking inside the printer.

Is it worth replacing?

You have two options: reset the waste ink counter using Epson’s adjustment program (or third-party equivalents like WIC Reset Utility) for $5–$10, or physically replace the pads. Counter reset is the easier route and buys you another full cycle. Physical pad replacement requires disassembling the printer — doable but messy.

Fuser assembly (laser printers)

When to replace

Fusers have a rated page yield — typically 100,000–200,000 pages on office-class printers, lower on consumer models. Signs it’s failing before the rated life:

• Toner smearing or rubbing off the page
• Vertical shiny lines running down the page
• Persistent fuser error codes (50.x on HP)
• Hot or burning smell during printing

Is it worth replacing?

Fuser assemblies for consumer laser printers cost $30–$100. On a $150 printer, questionable. On a business-class printer ($400+), absolutely replace it.

Drum unit (laser printers)

When to replace

The drum has a rated page yield. On most consumer Brother printers, it’s around 15,000–30,000 pages. The printer will alert you when it’s near end of life. Visual signs: black dots or marks appearing at regular intervals on printed pages (indicating drum damage).

Is it worth replacing?

Yes — drum units for popular Brother models cost $20–$45. This is standard printer maintenance, not a repair. Budget for a drum replacement every few years if you print regularly.

When to replace the whole printer

The honest threshold: if repair parts cost more than 50% of a comparable new printer, buy new. Also buy new if the printer model is discontinued and parts aren’t available. Inkjets under $100 are typically not worth repairing beyond cartridge replacement — the economics don’t work.

For maintenance steps that extend part life, see the printer cleaning guide.