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AParsons-
Get the new OEM Black primary feed tire with deep horizontal ridges that they're using on newer models for any tray having jams. Esp with today's inconsistent paper quality. A5C1562200 has the built in clip, but the tire can be taken off the hub & used on previous hubs.
You can spray the tray clutch with CRC Electronics cleaner. Do not disassemble. Just stick the spray straw in the clutch and flood it while turning. Can often salvage a slipping clutch.
Digging up an old thread, but has anyone had much success vacuuming out these ducts out without the need to remove them ?Originally Posted by kmbthk
Seeing this issue a lot more now the 4 series have been around for a while now.
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Low speed and high speed have different air paths. Low speed up fo 36ppm you can't clean from the back sufficiently.
Only from front side vacuuming. For speed versions ones with toner filler at the back we use the KM jig to suck the toner from the back.
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We've never removed the ducts. Lazy, I guess? I just stick my vac gooseneck in from the front door and get what I can. Can't tell if it gets it all out or not. I always blow out the DV unit's top air duct. We also carry around used ozone filters that have been blown out by our shop compressor at 125~150 PSI, not just by canned air. (Do it outside because most filters will yield a huge cloud). I'm sure Greta Thunberg will be coming by after this post
After switching to KTN toners, our excess toner dusting has been reduced, as well as rogue C2552,4,6,8 High Toner TCR % codes.
We salvage depleted C220, C224e, C258, C300i DV units with part of a bag of KTN DV. (P/N 49084 is black) Black can be used on any color, then just purge with halftone test pages until proper color returns.
Three main causes for DV issues remain:
- Crap online toner (use OEM or KTN)
- Old DV seals (use Copylite SEAL368)
- Old drums (never reset a 4e drum, always turn on 4e drum warnings, replace 4e drums on time!)
Don N.
you stated: After switching to KTN toners, our excess toner was reduced as well as the false C2552,4,6,8 High Toner TCR % codes.
do you have your opinion why the error C2552 TCR>10% sometimes appears, the machine solves the problem by itself and works normally for a while.
Assuming a poor mixture of developer content in the toner. We remive the offending toner, vacuum out the hopper & replace with Ktn toner. Do a hopper fill & run about 20 halftones at full density (255) then "manual" add toner cycle. TCR always comes back down to around 6.5%. Had to give up on another brand due to some batches of this. Mainly black & cyan.
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