HP 401dn keeps going offline - can I repair it myself?


PhilB

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OS
Windows 11 2H25
My daily driver printer is an HP 401dn, probably 10 years old by now that gets only light usage in a home office with two users. Recently it spontaneously goes offline. Power cycling the printer sometimes restores the printer to online status. Sometimes if there is a document already in the print queue, it prints a minute or two after the printer has been cycled.

Does anyone know what board or part needs to be replaced? Is this something I can do myself if I have the skill-sets to build all my desktops, etc.
 

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Windows 11 2H25AMD 9900X64 GBAMD 9070 XT
OS
Windows 11 2H25
Computer type
PC/Desktop
Manufacturer/Model
DIY
CPU
AMD 9900X
Motherboard
MSI X870E Carbon
Memory
64 GB
Graphics Card(s)
AMD 9070 XT
Sound Card
built-in
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Dell 24"
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Sabrent 1 TB NVMe, 4 x SSD (need to check models), 4 x 3.5" HDD, 8-16 TB, all WD
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Seasonic 850
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Fractal Design North XL (which I likw)
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Corsair AIO for CPU, fans for case
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Das Keyboard 4
Mouse
Corsair M65 (white)
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1 TB download
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Firefox
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Bitdefender
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Also have Lenovo T14S laptop (me) and Lenovo Slim 71 (wife)

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