: MPC 3500 with SC491

[duplicators]

Any help thanks

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[slimslob]

Re: : MPC 3500 with SC491

From Goose's Guide

B222/B224/G878	SC 491	Drum/dev bias error - replace drum unit(s)
B222/B224/G878	SC 491	Drum/dev bias error - replace high voltage supply unit
B222/B224/G878	SC 491	Drum/dev bias error - replace paper transfer unit

[skynetto]

Re: : MPC 3500 with SC491

Check bias drum pin on the machine side. Happens to me last week on the black one. Someone has taken the PCU out and bend the pin on the frame of the machine.

[duplicators]

Re: : MPC 3500 with SC491

Ok im going to check thanks

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[bob marley]