W-50
Epson Printer
Severity:What Does This Error Mean?
The W-50 warning on an Epson printer means the maintenance box (waste ink collector) is nearing the end of its capacity. The maintenance box collects waste ink from print head cleaning cycles. W-50 is an early warning — the printer will still work, but you need to replace the maintenance box soon.
Affected Models
- Epson EcoTank ET-2760
- Epson EcoTank ET-4760
- Epson EcoTank ET-3760
- Epson WorkForce WF-4820
- Epson EcoTank and WorkForce models with maintenance boxes
Common Causes
- The maintenance box has collected waste ink over time and is approaching full capacity
- Frequent print head cleaning cycles have accelerated waste ink accumulation
- The printer has been in use for a long time without a maintenance box replacement
- Running many cleaning cycles in a short time (to unclog the print head) filled the box faster than normal
- The printer's counter for the maintenance box was not reset after a previous replacement
How to Fix It
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Note that W-50 is a warning, not a full stop — you can still print for now.
Order a replacement maintenance box before the printer stops fully. Don't wait for W-51 or a full lockout.
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Identify the correct maintenance box part number for your printer model.
Check your printer's user manual or visit epson.com/support and search your model. Common part numbers include T04D1, T6711, and T6714.
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Purchase the correct maintenance box.
Available at Amazon, Best Buy, Walmart, and office supply stores. Cost is typically $15–$25.
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Follow the replacement instructions in your printer's manual or on-screen guide.
Most Epson printers guide you through replacement step by step when you access Maintenance Box from the settings menu.
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After installing the new box, confirm the printer resets the box counter.
The printer should automatically reset the counter. If W-50 still shows after replacement, go to Settings > Maintenance > Maintenance Box Reset.
When to Call a Professional
The W-50 warning does not require a technician. You can replace the maintenance box yourself — it is a user-replaceable part. Epson maintenance boxes (Part T04D1 or similar) cost $15–$25 and are available online or at electronics stores. If the box counter was not reset properly after replacement, a technician or Epson's reset tool can correct it.
Frequently Asked Questions
What is an Epson printer maintenance box?
The maintenance box is a small absorbent container that collects waste ink. Every time the printer runs a cleaning cycle or initializes the print head, a small amount of ink is flushed out. This ink collects in the maintenance box. When the box is full, the printer stops to prevent a mess. It is a normal consumable part that needs replacement periodically.
How long does an Epson maintenance box last?
It depends on how many cleaning cycles you run and how much you print. For typical home use, a maintenance box lasts 1–3 years. If you run many cleaning cycles (to unclog the print head), it fills faster. W-50 appears when it's roughly 70–80% full, giving you time to order a replacement.
Can I empty and reuse the Epson maintenance box?
No — maintenance boxes are designed as single-use items. The internal absorbent material fills with ink and cannot be easily cleaned or dried. Attempting to empty or refill it is messy and can damage the printer. Replacement boxes are inexpensive ($15–$25) and available easily online.