Epson EcoTank L4160 Error 0x000033 | PF Encoder Error
Error code 0x000033 on the Epson EcoTank L4160 relates to a paper feed timing/synchronization failure (PF encoder sensor error). It occurs when the optical reader on the left side of the frame cannot read the graduation marks on the transparent timing disc.
Common causes
- 1Ink mist or oil smudges on the circular plastic PF encoder wheel.
- 2Dust on the optical sensor housing that sits around the edge of the circular wheel.
- 3Faulty PF encoder sensor module or loose ribbon cables.
Solutions
How to Fix Paper Advance Sync Error 0x000033
This fault is typically triggered when airborne grease or fine ink mist settles on the thin plastic timing disc on the left-hand chassis frame.
Solution: Clean the Circular PF Encoder Disc
- Power off the printer and unplug the AC power cord.
- Identify Left-Side Assembly: (Accessing the physical wheel requires taking off the left-side cover plate. If doing this at home, try blowing compressed air through the side grilles first).
- Clean the Translucent Disc: If the thin plastic disc is accessible, gently wipe its surfaces using a clean microfiber cloth to remove oily grease residues blocking the optical sensor.
Steps to follow
- 1
Disconnect power sources
Unplug the L4160 power line to avoid any risk of shorting board components.
- 2
Clear the left-side sensor air-lanes
Use compressed air in short bursts inside the left side slots to clean the optical detector eye.
- 3
Perform a print feeding test
Turn the machine back on and print a draft page to confirm the paper feeds smoothly.
Frequently asked questions
No. This error is strictly optical and mechanical, related to how the rollers advance the paper, so running a printhead nozzle clean will not affect the code.