# Kyocera ECOSYS P5026cdn Drum Unit Replacement: Resolving Smudging Prints
The Kyocera ECOSYS P5026cdn is a compact, high-efficiency desktop colour laser printer renowned for its incredibly low running costs. Kyocera achieved this reputation by building long-life components into their hardware—most notably their heavy-duty image drums, which are engineered to go the distance before ever needing a swap.
However, mechanical components can sometimes throw a curveball well before their official expiry date. We were recently called out to service a Kyocera ECOSYS P5026cdn in Leeds that had developed highly visible smudging and tracking marks right across the printed pages.
## The Problem: Seized Drum Cleaning Gears at Just 30K Prints
When our independent printer technician inspected the machine, the root cause was found inside the colour drum assembly. Kyocera drum units are officially rated for an impressive **100,000-page lifespan**. Shockingly, this specific unit began failing after completing **only 30,000 prints**.
Upon closer extraction and bench diagnosis, we discovered that the internal drum cleaning gears had completely seized up.
When these critical gears lock up, the internal waste toner wiper blade can no longer clear leftover toner particles from the surface of the drum after a print cycle. The residual toner simply accumulates and bakes onto the roller, transferring directly onto your clean paper as ugly, messy smudges and streaks.
## The Solution: Installing a New Genuine DK-5231 Drum Assembly
Because the internal gears had seized mechanically and risked putting strain on the printer's main motor drive, the entire colour drum unit required a replacement.
We quickly sourced a brand-new, genuine Kyocera drum assembly to get the client up and running. Our engineer removed the faulty module, thoroughly cleaned the internal carriage of any stray toner drift, and slotted the fresh unit into place.
* **Part Numbers Replaced:** DK-5231, DK5231, 302R793020, 2R793020
* **Colours Handled by This Unit:** Cyan, Magenta, Yellow
Once installed, the printer initialised silently, calibrated perfectly, and immediately returned to producing flawless, crisp color text and images with absolutely no smudging.
## What Other Kyocera Models Use the DK-5231 Drum?
This specific long-life drum unit is shared across Kyocera's popular entry-level enterprise lineup. If you operate any of the following machines across West Yorkshire, our fast drum replacement service applies to you:
* **Kyocera ECOSYS P Series (Printers):** P5021cdn, P5021cdw, P5026cdn, P5026cdw
* **Kyocera ECOSYS M Series (Multifunction MFPs):** M5521cdn, M5521cdw, M5526cdn, M5526cdw
## Fast, Local Kyocera Printer Servicing in Leeds & Bradford
If your Kyocera laser printer is suffering from premature print defects, background shadows, or smudging long before its maintenance kit is due, Yorkshire Office Machines can help. With over 36 years of experience in the trade, we deliver fast on-site repairs and highly economical workshop alternatives.
Give us a call today at 0113 229 6770 or text our mobile engineer directly at 07951 951 330 to book a prompt assessment. You can also schedule a workshop drop-off at our Pudsey office to save on call-out fees!
Use the quick contact form or call us to discuss your service requirements