sharp mx4500

[blackcat4866]

Re: sharp mx4500

This is caused by a LSU shutter which is either stuck open, has a broken spring, or is missing altogether. That line is the LSU firing and its normally blocked by a working (closed at the time) shutter.

Remove the drums & developing units. Remove each shutter unit (1 screw each) and check them. There was a known batch of shutters which had a molding problem and they would sometimes catch on the bottom of the developing tank next to it, because there was a small raised lip on the rear side. A quick sandpaper of the top of the shutter unit stops this from happening.

=^..^=

Re: sharp mx4500

hi whole drum unit replaced,main charger replaced.if you do multiple copies the line goes. it only appears on the first copy..

[JustManuals]

Re: sharp mx4500

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Paul@justmanuals.com

Re: sharp mx4500

Have you changed the charger as well or just the drum, normally worn charger unit.

[bubba]

hi all have an mx 4500 with a vertical black line on rear of copy.first page only, have replaced k drum and dev units,primary and secondary transfer units.if you do a colour copy or black copy you get a vertical line.... on rear,any ideas....