Question about HP LaserJet 4 plus Printer

1 Answer

Replaced toner is printing very light.

I replaced my toner in Jan. and ever since then, the printing is as light as the old one. I have taken it out and shaken it but there is no difference.

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  • gullenj Mar 03, 2009

    Similar problem with lighter print, but not all docs. PDF files and emails thru hotmail are very faint. I replaced the transfer roller - not much difference. Settings: RET=Dark and set to level 5 for Density. Tried switching to various drivers since there are many with LaserJet 4, 4 plus, 4/m, PS etc. with no change. Test print page is strong and black thru out. A month or so ago I came across a fix, I thought it was on this site, that suggested and I downloaded a patch related to PDFs. Old tech printer not understanding new tech PDFs, etc. ?? Anyway, I didn't know how to implement the add on. I tried it as a driver file w/out success and have since lost the file and the link. Any help would be greatly appreciated.

  • John LeFebvre May 11, 2010

    Also if it is not a genuine toner it could produce bad results. You get what you pay for is true more often that not.

    I take it none of the settings on the printer have changed, like turning on Economy mode?

  • sdtech May 11, 2010

    2 things - 1 maybe a bad toner - these are old printers and sometime the toner has been around for a long time. 2 the fuser could be getting weak - replace fuser - check the page count with the selftest menu and see how many pages it has printed - if around 100,000 try a new fuser

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1 Answer

If the print quality is the same as the old one - light laser is dirty and/or transfer roller. Fuser would NEVER cause light copies -but rather, dark, smudgy copies

Posted on Mar 01, 2009

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How do I know which toner is empty on samsung clp315


  • 1.Log on to your computer and print a test page to the printer. Click on the "Start" button, choose "Control Panel" and then "Printers and Faxes." Right-click on the laser printer, choose "Properties" from the drop-down menu and click the "Print test page" box.

  • 2.Look at the quality of the print on the finished page. If the print is light or faded, the ink cartridge is probably empty or at least empty enough that it should be replaced. You can try to get some extra life out of your toner cartridge by taking it out of the printer, shaking it vigorously and putting it back in. Under normal printing loads, this can give you one to three days of additional printing capacity.

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