enx magazine

There are plenty of the C123 series machines out there and more being sold each day. They're reported as performing very well in the field. They don't break down all that much from what I'm told, so that makes servicing the cartridges and modules that much more important. This is another example of one of those "win-win" situations. You can rebuild a cartridge, save your customer money, while making a healthier profit for yourself… all while keeping the used cartridge out of a landfill. I'll start with a bit of an introduction to the cartridges along with some details about them and then get into the disassembly procedure highlighting any tricks or possible pitfalls to avoid.

C123 style Drum Cartridge

Like many of the recently released models, these machines employ a relatively new technology for the CRUMs (Customer Replaceable Unit Monitor chips). They use an RF Chip (Radio Frequency). This type of chip does not make any physical or electrical contact with the machine at all. Instead a radio emitter / reader board waits for the CRUM on the cartridge to slide into close proximity. That board can read the chip's type and copy count, and then write to the chip to update the copy count (the count is kept on the cartridge's CRUM). Many of us are waiting with bated breath for someone to create an aftermarket RF Chip for the drum cartridges and also for the toner cartridges. I've heard that several folks have them under development, so it's probably just a matter of time before they are brought to market. The drums, blades, charge rolls and the toner refills are already available.

When you start taking one of these Drum Cartridges apart, you'll find that it has two halves. The lower half is the Developer Unit with its augers and magnetic roller. The machine is dual component, so there is developer material in there. The upper half houses the Charge Roll, Drum and Cleaning Blade.

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