Question about HP LaserJet 4600dn Color Printer

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False Toner message

I have a major problem with my 4600dn. After installing a toner cartridge it goes from full to empty in the toner supplies window in a matter of a few short weeks, even though they are hardly used. I then have to bypass the empty message in the diagnostics mode, but when I have two or more "empty cartridges" I cannot bypass at all and, thus, cannot print.

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Re: False Toner message

First thing u need to use a original hp supplies. a smart chip in the toner will detect the toner level. if u r using the original toner cartridge . then probem with the toner level detecting pcb

Posted on Jan 09, 2008

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Re: False Toner message

Are you using genuine HP toners? If not HP puts a chip on there cartridges that tells the machine it is a new cartridge. Some generic toners do not replace this chip therefor giving you this false message.

Posted on Jun 22, 2007

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Install Toner error message still displays even when replaced

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To check the toner level, there is a little clear window on each cartridge you can use for this purpose. Hold the cartridge vertically. If you see toner in the window, it is more than half full (or less than half empty, ha!). If not, slowly tilt the cartridge toward the side with the window. Essentially, how far you tilt it before you see toner determines how far below half full it is. If you pass a 45 degree angle before the toner appears in the window, it is nearing empty and must be replaced or refilled (yes, refilling is an option).

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The waste toner cartridge has a transparent extrusion on the bottom, which fills with toner when the cartridge is full, but also if it is half full and shaken so that toner falls into this extrusion. If this happens, the only way to remove the toner is to open the cartridge by removing the tape, taking the two halves apart and shaking/blowing/hoovering it empty. You can stick them together again with ordinary sellotape.

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Waste toner full/empty message

this messages referes to the waste toner being full or not installed.

Manufactures try to stop you from emptying the container by having a small "window" that the printer looks through, when you empty the toner there will still be some toner on this window, so the printer will still believe that it is full.

a way around this is to wash the container out with water (do not use hot water as this will melt the toner). i also wouldn't recommend pouring the water & toner down the sink as this could be breaking local laws.

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Here's what I did.

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The waste toner is collected inside the drum cartridge. It can be emptied by removing the drum cartridge assy and opening the opaque window and emptying into a large bag. The lines on your copies are probably a symptom of the drum being worn out, so replacement is probably a better option. The drum is good for 60,000 copies.

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Waste Toner Full/ Not install still on screen after I emptied and will not print. I emptied container and reinstalled and still same message on screen

Behind the little container for the waste toner there is a sensor that senses whether the toner basket is full or not. If the sensor itself is dirty, it can give a false reading. First try cleaning out the area under the container to see if the switch works. Also make sure the container is clean, because the sensor works by sight, so if it looks full because it's dirty, it will give a false reading. I have heard of people disabling that sensor in various ways, but that can get dangerous to the printer. I can't recall the details on that exact model, but I believe there is a diagnostic of some sort that can test that sensor to make sure it works right to begin with.

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