DADF-K1 in Canon CLC2620 problem with multiple pages pulled in by the feeder

[ortholing]

Hello,
over the last time things got worse with the DADF-K1 in my Canon CLC2620 (IRC 3200).
If I have many clean, straight not curled pages in my DADF, the feeder pulls always several page all at once- sometimes this bunch of pages get stuck - jam situation.
What can I do to solve this problem? BTW: the other functions are working properly (at least with one single page, even double sided)
I have just contacted my Canon supplier, but he tells me that the suitable parts (stronger spring, separation pad, separation roller etc.) are no longer available by Canon - these items are marked "red".
Can someone help me to get these parts elsewhere?

Any help will be highly appreciated!

Kindest regards,
ortholing

[copier tech]

This is a simple fix, just replace the sep pad & rollers, but like you say Canon don't supply them anymore.

However removing & cleaning them should get some more life of this old machine!