Question about Xerox Phaser 2135N Laser Printer
Between the LED rasterizers (four of them, one for each of CMY & K), there are rockers with a small but powerful magnet. When the lid is closed, the magnet will touch the top of the toner cartridge, which in turn, has a magnet on a rod that goes up and down with the rollers when the toner is churned in the cartridge. If the toner magnet is not in the position it is supposed to be (you can check it's position with a hand held magnet), the sensor will falsely interpret that no cartridge is present. You may need to replace the toner cartridge, or if you have more time than money, empty the toner cartridge into a clean vessel, disassemble the cartridge, fix the magnet-on-a-wire assembly, reassemble the cartridge, and replace the toner from the holding vessel. Or, just buy a new cartridge.
On the other hand, I've noticed the rocker switches get sticky in lower temperatures (I keep my 2135 in the garage). Maybe a shot of WD40 on the rocker would help, but to do that, you'll need to remove the lid. It's not too hard, there's only about 9 screws, after removing the back panel (another 4 or 5 screws), After a few more screws around the toner sensor panel (a PCB), you disconnect some quick-disconnect switches, and then you can see the rockers (the actual switches are opto-electrical components on the PCB, you might clean them with alcohol, but they are discrete packages that can't be repaired).
This is a major flaw in the Xerox 2135 (probably persists in the 7300 series as well) and the OKI 9200/9300 series upon which the 2135 is based. There's way too much that can go wrong, but the killer is that nothing except the sensor is failing. Very frustrating!
Posted on Nov 18, 2011
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Posted on Jan 02, 2017
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