Wild and printed jokers are solely used to create tainted sequences and sets. Only if the wild joker is of the same suit and sequential rank can it be utilized to create a pure sequence.
Printed and wild Jokers can be combined to create impure sets and sequences.
The wild joker can be used instead of 9 to create the impure sequence 7 8 4 10.
The printed joker can replace J and create the impure sequence 10 PJ Q.