I know that when a blade flip, after that, it's more likely that it will flip again.
You can try to replace the blade again and lubricate the itb all around.
I know that when a blade flip, after that, it's more likely that it will flip again.
You can try to replace the blade again and lubricate the itb all around.
@Rachid.Akli I will check for you. As far as I know it is being rolled out on the same P/N
I attended a irc3380 today, the itb belt had completely shredded & wrapped itself around the drive roller, never seen that before!
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Saw that happen on a iRc ADV 20 series about a month ago. Has something to do with the cleaning spiral in the itb
I have seen this numerous times on 3380...even with new blade and belt. Keep the screws barely snug after installing then snug them up next call. See this a the time
Black Band Sequence
If continuous print is carried out while there is no toner being sent on to the ITB cleaning blade, the blade may bend backwards. This sequence feeds non-transferred
toner to the cleaning blade in order to prevent this problem.
1. Timing
- When belt rotation is performed after 1,000 sheets printing.
2. Sequence details
According to the above-mentioned timing, the solid black belt of 10mm in length is formed with the width on ITB. Once the black band clears the secondary transfer
roller, secondary transfer outer roller cleaning (see Note) is performed.
Further, once the black band is formed, the cumulative counter resets to the default (0).
NOTE:
Negative bias (TR2 signal) is applied to the secondary transfer outer roller to prevent rear soiling of the print paper, and this creates a difference in electro-potential
between the ITB and the roller. As a result, residual negative toner sticking to the secondary transfer outer roller returns to the ITB and is collected in the cleaning
unit by the ITB cleaning blade.
**Knowledge is time consuming, exhausting and costly for a trained Tech.**
My team has had this issue many times. We find that you change the cleaner assy, then next morning you get a call for blanks. Upon inspection we find the blade hasn't flipped, it kinda adhered to the belt. Grab the drive coupling to turn it and the belt snaps loose. We don't replace them until they streak,which is very rare. I dust the belt area where the blade makes contact with waste toner before installing the cleaner. Its a little grittier(?) than sterate or whatever drum powder you wanna use, and helps prevent belt from stalling. Once the blade wears a bit, not an issue.
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