We've had the Samsung SL-M2825DW for about 2 years now, and printed a total of 5345 pages (according to the configuration report).
Recently, I've noticed that the toner doesn't always adhere well to the paper after printing. At first it seemed to only happen after printing dozens of pages, but now it seems to happen even from a cold start.
As you can see, I can easily rub it off from certain parts of the page. However, other parts of the page seem to be fine.
From what I've read so far, it is most likely due to some problem with the fuser unit (which uses high temperatures to fuse the toner to the paper). I've tried cleaning the rollers in the toner, but that didn't seem to help much – I suspect that any residual toner I see on the rollers is just left over from not adhering to the paper.
Is the fuser just reaching the end of its life? The estimates I've seen for fuser life are typically in the 100K page range. So, I am surprised that I've only gotten about 5K pages, even with this lowest-end consumer printer.
Other possibilities I've considered are:
- Paper type. We've been using the same kind of paper since we got the printer, the Astrobright series from Neenah (weight 11.8 M, basis 24/60). So, unless the paper has significantly changed formulation, I'd be surprised by this. I even tried adjusting the paper thickness setting on the printer to maximum thickness, in hopes that it would print more slowly or at a higher temperature to help the toner adhere;
- Toner quality. We've been using an offbrand toner cartridge, but again we didn't seem to have a problem with this toner a year ago.
- Eco mode. We print using "eco mode", which is supposed to use less toner. Again, I don't think this caused any problem a year ago.
Is this typical for low-end consumer printers? Would a more expensive printer have a longer-lasting fuser unit? I should mention that the printer only had a 1-year warranty, and so is out of warranty at this point.
Best Answer
If toner is not sticking to the paper then the problem is with either the paper or the fuser (note: not the drum).
The fuser is there to apply heat to the paper. This heat melts the toner so it adheres to the paper. If the fuser does not apply sufficient heat then not all the toner will melt, and the un-melted particles can rub off.
The amount of heat required in the fuser depends on the paper used. Heavy paper requires more heat to warm up. To achieve, that most printers either warm up the fuser more, or they slow down the speed of paper travel. This latter method is used for card stock, labels and other very heavy papers. Changing fuser temperature can be used to switch between light and heavyweight papers.
I would start by checking the paper type, and compare it to the driver settings. Make sure they match. If you are using paper heavier than 80gsm, set the driver to "heavyweight paper" or equivalent. Anything over about 120gsm will need a "light card" setting or even heavier. Note that this is printer dependent, so check your manual.
If the paper settings are correct, then you will need to replace the fuser. While it is never listed as such, the fuser is actually a consumable. A typical life is 50,000 to 100,000 pages. If you have only printed 5,000 pages, the manufacturer may replace it under warranty, if the printer itself is still under warranty.