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Synaux
09-08-2023, 01:27 AM
I cannot recall ever seeing an NG for this.
The Service Manual is sufficiently vague on the subject so not sure what to do about it.
Machine operates fine, I decided to do all the I/O checks on a whim.

JulioSaphire
02-27-2024, 10:16 AM
I'm relatively new here, so bear with me. Recently had the 'c654 JPEG Check NG' pop up, and like you, the Service Manual left me scratching my head. Machine's chugging along fine, but I decided to dive into the I/O checks just for kicks.

rrrohan
02-27-2024, 01:09 PM
are you scanning as PDF or JPG? assuming ur not scanning as JPG as thats uncommon does PDF work ok?

considering the age of a c654 (non e) i would try replacing the hdd as mech hdd after like 10 years is pretty expected esp since the brand isnt usually one ive hear of. isnt it like HSGT or somethin

femaster
02-27-2024, 04:01 PM
the brand isnt usually one ive hear of. isnt it like HSGT or somethin

HGST (Hitachi Global Storage Technologies) was actually a really good brand back in the day, prior to their acquisition by WD (Western Digital) in 2012.

HGST - Wikipedia (https://en.wikipedia.org/wiki/HGST)

JulioSaphire
03-01-2024, 03:20 PM
I'm relatively new here, so bear with me. Recently had the 'c654 JPEG Check NG' pop up, and like you, the Service Manual left me scratching my head. Machine's chugging along fine, but I decided to dive into the I/O checks just for kicks.
Did some tinkering with the JPEG Optimizer you know, compress image (https://jpeg-optimizer.com/) and whatnot and it seems to have made a difference. Not entirely sure if it's the fix, but might be worth a shot for you too! Any success stories? Super new here, so if I'm not following the protocol or something, just give me a heads up.

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