riso rz 220 stretched mark on paper

[smiley]

good day guys. i have this problem in some of my riso rz 220 i already replace the stripper pads and adjust some angle but this still occurs. please see sample photos thanks.

[jermyth]

Re: riso rz 220 stretched mark on paper

I have seen a few different causes for this. First is often the paper, does it happen with a different ream? Second, impression roller needs replaced. Third, one-way timing gear. There is a tech flash from 2005 about replacing the timing gear, see attached PDF. Good luck.

[smiley]

Re: riso rz 220 stretched mark on paper

thanks for the info jermyth. it happen in all reams. but just in news print paper or thin paper type if they use bond 20 gsm or book paper its ok. i will try the one way timing gear that you said.thank you so much.

[20gaugeO/U]

Re: riso rz 220 stretched mark on paper

Probably the Impression Roller under the drum like jermyth mentioned

[smiley]

Re: riso rz 220 stretched mark on paper

good day guys thank you for all the response. its the wear impression roller that cause this problem. i replace it and problem solve.

[Phil B.]

Re: riso rz 220 stretched mark on paper

good day guys thank you for all the response. its the wear impression roller that cause this problem. i replace it and problem solve.

well the suggested fix did it?

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