The Canon TR4720 is a compact PIXMA-series all-in-one aimed at home and small-office users. This practical guide explains five essential maintenance tasks every TR4720 owner should know so you can keep prints consistent, reduce downtime, and extend the working life of the machine. Whether you use the TR4720 for occasional color documents or regular home-office printing, a short, predictable maintenance routine prevents common faults and saves money on avoidable service calls.
Why routine maintenance matters for the TR4720
All inkjet printers, including the TR4720, combine mechanical paper handling with liquid-ink printheads and electronic sensors. Dust, paper fibers, dried ink, and firmware mismatches are the most common causes of degraded print quality and errors. A steady maintenance habit—small checks and occasional cleaning—keeps the printer operating within normal tolerances and helps you spot problems (like failing cartridges or repeated jams) before they become serious. This guide focuses on safe, manufacturer-aligned practices that fit typical home and small-office use.
Five core maintenance tasks TR4720 owners should do
These five tasks cover most routine issues TR4720 owners face: replace and check cartridges, run nozzle checks and printhead cleaning, clear and prevent paper jams, keep the paper path and sensors clean, and keep firmware/drivers up to date. Each task is described with why it matters, how often to do it, and safe steps to perform it.
1) Monitor and replace ink cartridges properly
Running low or expired cartridges are a frequent cause of streaks, missing colors, and print failures. Check ink levels from the printer display or printer software before a large print job. Replace only when the printer indicates a cartridge is empty or when nozzle checks show persistent defects on a specific color. When replacing, power the printer on, open the cartridge access cover, and handle cartridges by the plastic body—avoid touching electrical contacts or the nozzle area. Dispose of used cartridges responsibly and keep a spare set if you print frequently.
2) Perform nozzle checks and clean the printhead when needed
If printouts show missing lines or pale bands, run the nozzle check pattern from the Maintenance menu on the TR4720. The pattern shows whether nozzles are firing correctly. If it’s incomplete or streaked, run the automatic Cleaning routine once or twice. Deep Cleaning is available if the normal clean doesn’t help, but note that cleaning consumes ink—space these actions several hours apart if repeated. If repeated deep cleans don’t restore a perfect nozzle check, try reseating or replacing cartridges and consult the printer manual for next steps.
3) Clear paper jams carefully and prevent future jams
Paper jams remain a leading cause of service calls. When a jam occurs, follow the printer’s on-screen instructions or the manual to remove jammed pages from the output slot, rear cover, or paper cassette. Turn the printer off only if the manual instructs it; some guides recommend pressing Stop/Reset before powering down so print jobs aren’t lost unexpectedly. Remove paper slowly and evenly to avoid tearing; small paper fragments left behind can cause repeat jams. Prevent jams by using good-quality paper, fanning and aligning stacks before loading, and not overfilling the cassette.
4) Clean the paper path, platen glass, and encoder strip
Light dust and paper fibers accumulate inside the paper path and on the platen glass used for scanning. Regularly wipe the glass with a lint-free cloth moistened with a small amount of glass cleaner (spray the cloth, not the glass). Carefully clean visible rollers and the paper feed area with a dry, lint-free cloth. If you notice horizontal banding or misregistration after a jam, the encoder strip (a thin clear strip with fine markings that the print carriage uses for positioning) can be gently wiped with a soft cloth and isopropyl alcohol—handle it cautiously and follow manual guidance to avoid bending or marking it.
5) Keep firmware and drivers current; check network connections
Firmware updates can fix connectivity, security, and reliability issues. Periodically check for firmware and driver updates from Canon’s support site and apply them when recommended; in many cases the printer will prompt you if an update is available. For networked printing, ensure the TR4720’s Wi‑Fi credentials are current and use the same frequency band (2.4 GHz vs 5 GHz) compatible with the device you print from. If the printer drops off the network, a quick power cycle and reconnection often resolves transient issues.
Benefits and considerations for each maintenance task
Routine upkeep reduces print-quality problems, fewer interruptions for urgent prints, and often lowers the likelihood of a costly service visit. The trade-offs are small: a few minutes for a nozzle check, occasional cartridge cost if a clean is needed, and spending a short time verifying firmware. Avoid over-cleaning—excessive deep cleans waste ink and rarely solve mechanical issues. If you are unsure about disassembling parts or encountering persistent errors, consult the official manual or authorized service to avoid voiding warranty or causing further damage.
What’s new and practical context for TR4720 owners
Although the core maintenance patterns for inkjets are stable, two practical trends affect TR4720 care: first, smarter printer firmware and companion apps increasingly surface maintenance alerts and guided procedures, making routine tasks easier. Second, inexpensive third‑party cartridges exist, but they may change print reliability and trigger additional maintenance—if you experience recurring nozzle issues, try swapping to a manufacturer-recommended cartridge to determine whether third-party supplies are the cause. Finally, local environmental factors—high dust, humidity, or very dry heat—can change a printer’s maintenance cadence, so adapt frequency accordingly.
Simple, safe maintenance checklist you can follow
| Task | Suggested Frequency | Quick Steps |
|---|---|---|
| Ink level check & cartridge replacement | Before large jobs; monthly for regular users | Check display/software → open cover → replace low/empty cartridge → reseat |
| Nozzle check & head cleaning | When print quality degrades | Print nozzle check → run Cleaning → print another check → Deep Clean if needed |
| Paper jam removal | As needed | Follow on-screen/manual steps → remove paper slowly → inspect path for fragments |
| Glass, paper path, and encoder strip cleaning | Every 1–3 months or after jams | Power off → clean glass with lint-free cloth → gently wipe rollers/strip |
| Firmware & driver updates | Check quarterly; install when available | Visit Canon support or use printer app → download/install updates |
Practical tips from experience
Keep the printer on a stable, dust‑reduced surface and avoid placing it near open windows. Turn off automatic deep-cleaning schedules—perform them only when needed. If a nozzle check shows one color failing, swap cartridges between slots (if the manual permits) to determine whether the cartridge or the print head is at fault. Always power the printer using its own power switch when performing internal cleaning and unplug only if the manual instructs you to do so for specific procedures. Finally, register your printer with Canon to access warranty and support options should you need professional service.
Wrap-up — what to remember
Five small maintenance habits—watching ink, checking nozzles, clearing jams carefully, cleaning the paper path and glass, and keeping firmware current—cover most reliability and print-quality problems on the Canon TR4720. These tasks take little time yet substantially reduce interruptions and extend the useful life of the device. For complex or repeated faults, refer to the official user manual or Canon support to avoid accidental damage. Regular maintenance is a practical way to keep a compact home or small-office printer performing well for years.
FAQ
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Q: How often should I run a nozzle check?
A: Run a nozzle check when you notice missing lines or poor color in printouts, or before a large color job. For occasional users, check monthly.
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Q: Can I use third‑party ink in the TR4720?
A: Third‑party cartridges may work but can affect print quality and maintenance needs. If you see persistent nozzle or error issues after switching, test with manufacturer cartridges to isolate the cause.
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Q: What should I do if the printer shows a persistent paper jam but I can’t find the paper?
A: Power-cycle the printer and carefully inspect the rear, the platen, and inside the paper cassette for fragments. If the error persists, contact authorized support—forcing parts open can cause damage.
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Q: Will firmware updates erase settings?
A: Most firmware updates preserve settings, but it’s good practice to note your network and custom settings before a major update so you can restore them if needed.
Sources
- Canon U.S.A. — PIXMA TR4720 Support Page – downloads, manuals, and product support resources.
- Canon Online Manual — TR4700 series – user manual content including maintenance, nozzle checks, and cleaning procedures.
- Canon Knowledge Base — Removing Jammed Paper from the Rear Side (TR4720) – step-by-step jam removal guidance.
- Canon Knowledge Base — Nozzle Check and Cleaning – instructions for printing nozzle patterns and performing cleaning cycles.
This text was generated using a large language model, and select text has been reviewed and moderated for purposes such as readability.
