What is error code 0x90 mean for the EPSON Work Force Pro 4630

This error is an internal hardware error (potentially the motherboard) when things start to go wrong.

It would need to be looked at by a qualified repair technician but may probably be cheaper just to replace it.

The error code 0x90 Epson printer is an internal hardware error (potentially the motherboard). I suggest contacting Epson printer experts through free live chat.

Also, you can find here the Epson printer error code and its solutions.

hi
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Apparently cleaning with a wet towel or wet wipe is needed.

Don't be tricked into downloading antivirus software from some web sites that are actually malicious.

Example of cleaning suggestions:

https://answers.microsoft.com/en-us/windows/forum/windows8_1-performance/my-epson-wf-4630-pro-printer-led-screen-error-code/9d577dff-75a0-4885-a10e-cf948f3f491e

"Before you buy a new one. Clean the rolls and ink holder in the printer with a wet wipe or wet cloth. Start it without the ink cart, it should then ask you to insert it. Insert it then and it will go through the new ink routine. I did that twice and it fix the error.
It seem like one of the nozzle might be clog up and clean and forcing the printer to push more ink out will clear the clog."

Follow the link for troublreshooting guide from Epson Epson WorkForce Pro WF 4630 WorkForce Series All In Ones Printers Support...

If you are lucky, the 0xF4 error indicates a foreign object (a scrap of paper) in the gears. That would translate to PF driver mechanism overload. Another cause would be a contaminated encoder scale. Fixing either of these will require you to disassemble the printer. Here are some tips for taking apart the printer: https://www.ifixit.com/Guide/Repairing+EPSON+B-510DN+Error+0xF2+or+0xF3/11767 .

However, the 0xF4 error could mean that the encoder board or the motor have failed. These errors can only be fixed by a service technician. If your printer is under warranty, you should call for service. Otherwise decide if you want to risk taking it apart and finding that you can't fix this error. It may be cheaper to replace the unit.

I hope this helps.

Cindy Wells

Error 1433 means "IS Unit position sensor error".
unfortunately this issue is a major one and will need to be repaired by an Epson technician.

Hi,
there is a three different reasons for this error code:
1. PW sensor failure
2. Main Board failure
3. Foreign object
Look for obstacles inside printer at first and remove them, if error still persist you should visit authorized Epson service.
Good luck!