Which Epson printers share electronics/boards with WF 3640?

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Epson WF-3640
Hi All,

I have been unable to determine the OX20 fault on my WF-3640 (https://epson.com/Clearance-Center/All-in-One-Printers/Epson-WorkForce-WF-3640-All-in-One-Printer/p/C11CD16201) ... it is almost new and it really irritates me not to fix it. My previous post - https://www.printerknowledge.com/th...scan-from-computer-or-on-printer.15037/page-2

Does anyone have any idea which other WF printers would share PCBs/boards with the WF-3640? There are a lot of other versions for sale for a handful of dollars - it might be worth a shot at replacing boards?

WF-2530
WF-2620
WF-3540
WF-4630
etc?
 
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