Question about Konica Minolta bizhub 350 All-In-One Laser Printer

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Black line across top of page - I know there's an easy fix - just don't remember what tech told me

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  1. Remove the toner cartridge.
  2. Get a paper towel or cotton swab.
  3. Clean off the glassy part of the toner by turning the gear on the side by hand while wiping the drum surface clean and remove any black lines of toner you see from the cartridge.

Posted on Jul 25, 2008

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I get a black line down the left side of the page when a document is printed


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If the print is a dismal gray rather than a sharp black, you are probably almost out of toner. This can manifest itself evenly across the entire page or in splotches or stripes, depending on the printer.

Sometimes you can wring a little bit more out of a toner cartridge by taking it out and gently shaking it from side to side (never up and down, as toner can spill out). You can also try turning up the printer’s contrast adjustment, if it has such a knob (usually on the back side if it exists). Faded print can also result from a dirty corona wire, because a dirty wire inhibits a full electrical charge from being passed.

If the printouts are consistently varied in density, and you have to frequently remove the toner cartridge and shake it to redistribute the toner inside it, make sure the printer is sitting on an even, flat surface.

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A horizontal black line on the printout is probably the result of a dirty or damaged roller. There are lots of rollers in the printer, and you can use the space between the lines on the page to determine which roller is causing the problem. Measure the distance between the errant black lines on the page and then use Table A to determine which part might be causing the problem. Table A
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This can indicate an almost empty or faulty toner cartridge or (less frequently) some spilled toner inside the printer.

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I have a Lexmark Optra T614 and when I print mostly black pages such as large dark graphics, I get streaky vertical lines at 3" and 5" from the left side of the portrait oriented page, and a lighter...


You need to either call a repair tech and have the printer serviced for routine maintenance or order a maintenance kit from Lexmark to do the job yourself.

Just curious, what is the page count on the printer? When was the last time the entire print cartridge was replaced?

Don

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1 Answer

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there is probably something on a drum, fuser roller, transfer roller, or primary roller. usually an easy fix for a copier tech, probably not for someone with no experience.

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From what you've said it really doesn't sound like the maint kit would cause the problem. The fuser will cause ghosting or repetitive defects or smearing of the print the transfer roller also repetitive usually.
I think you have a toner (thats the easy test) or a laser scanner issue.
Try a new or known good toner cart. Did you change about the same time you did the kit?
If that doesn't work you can swap back the parts you removed when you changed the kit. One at a time, just the fuser and the transfer roll the feed rolls have nothing to do with what you describe.
If you still have the problem it is likely the laser/scanner assm.
You should proprably call a tech.
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Before replacing the LVPS, I surely would replace the toner and transfer roller at same time.

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Toner issue getting to drum - use gen toner cart.

or Drum blade stuffed (lines are down page fro top to bottom- replace drum assy

Drum has been exposed to light faint or blank across copies repeated 4 times down page - replace drum assy

or upper fuser roller stuffed, down page, smudgy print -  replace fuser

LSU(laser) or boards rarely cause issues

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1 Answer

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Solution is here: http://www.fixya.com/support/t136826-printer_problem

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