Development Units for Laser Printers
Find the right development unit for your Lexmark laser printer here. We will get your orders delivered to you quickly!
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What is the development unit made of?
The development unit is made up of thousands of small magnetic beads attached to a roller - a rotating cylinder made of metal. The beads carry an electric charge and attract the toner powder with opposite charge.
What does the development unit do?
The development unit plays an important role in getting the toner to the page. The development unit (also called a developer unit) attracts toner powder from the toner hopper. It then rotates and passes on the toner (that is coated on the beads) over to the drum unit, which has the electrostatic image written on it by the laser. The stronger charge on the photosensitive drum draws the toner away from the development unit and on to the image (to be printed).
Development units in a colour printer
Colour laser printers have four instead of one toner cartridges (cyan, magenta, yellow and black) and have separate developer drums for each toner cartridge. If you are buying a replacement developer unit for a colour unit, you need to usually buy and replace for the exact colour based on what the display screen error message mentions.
When is it time to change a developer unit?
Look out for these signs that might indicate that your printer’s developer unit needs to be replaced:
- Error message on display screen asking for replacement of development unit (also called developing or developer unit).
- Lighter prints, even after recently replacing a toner cartridge
Refer to your printer's instruction manual or check your brand and model number online for instructions as to how to replace your developer unit.
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Customer Reviews for Development Units for Laser Printers Purchase
Amazing company, we received our order the next day!!!
Very competitive prices, incredibly fast delivery. A very reliable supplier.
Amazing service, ordered mid afternoon and delivered by 1030am the next day to Tasmania! Will definitely use this business again. Thank you
Great service. Quick, easy and efficient. My order arrived the next day.
It's hard to beat perfection, but my latest order probably does. The items I ordered were shipped on the same day that I placed the order and delivered the following morning. Wonderful service; thank you very much. A great example for other on-line retailers!!
Very efficient helpful Staff, good quality products, and fast delivery.
I have found InkDepot to be very reliable and are as good a price as anyone, I use them all of the time. Delivery is fast, my last order was delivered on the same day of order. There was an error (one ink was the wrong colour, which they noticed before I did!), they notified me of the error and sent the correct one immediately which arrived the next day (the time that this has happened to me after many 10's of orders). I've found Ink Depot to to be very fast with delivery, very reliable and when a rare error occurred, the identified it, corrected it immediately with no issue for me.
Very competitive price and fast delivery! Highly recommended 👍
Such quick delivery and great priced products. Highly recommend Ink Depot
I purchased an Epson maintenance box for my printer and it turned out to be faulty (no fault of Ink Depot, just a faulty unit). I was refunded in full. I would definitely deal with this company again. Excellent Customer Service.
Found the Epson product I wanted at ink Depot for the best price. Ordered the product online and it was delivered the next day. Can’t complain about the delivery timeframe or price.
Good fast service
Super quick service. Received exactly what I ordered. Prices are very competitive.
always very quick to deliver
I was not aware of your company until a referral, so took the opportunity of buying a product which was not available to purchase in retail stores. I was amazed at not only the minimal price but the quickness of receiving my package and the perfect condition that it arrived in only a few days after ordering on line. My coloured printer is finally back to working as it should. Will definitely be purchasing again from you when the need arises. Thank you for your excellent service. Sandra.
It's super fast delivery!! It took only 1 day. Thank you
The ink arrived the next day. Brilliant
Everything good - just a pity about the courier service you use. No notification as to when it was arriving and apparently arrived on a Saturday when I was at home until 3pm. Item was then inconveniently taken to a newsagents some way from my home as opposed to local PO or newsagent.
Great customer service. Definitely recommend Ink Depot.
I ordered a product one evening and it was on my doorstep in the morning! Astounding service.
Great speedy servicer
Excellent, prompt service once again. On my doorstep 48 hours after ordering. Previous generic toner cartridges have performed well. This time, I also ordered my first drum unit so is too early to report on that product.
Very prompt service and excellent to deal with. I would fully recommend the Ink Depot to anyone.
Very competitive price, delivery is super fast. Happy with the whole process.
Prompt easy. Right price
General FAQ
An Epson EcoTank printer is designed for businesses that print large volumes regularly and would like to print on for months before there is a need for ink bottle replacement. An Epson Expression printer is the right choice for homes and small businesses and is very compact and offers lots of useful features while Epson WorkForce and WorkForce Pro series models are great additions in medium and large businesses as they offer fast print speeds, multifunction capability and an intuitive user interface.
Epson EcoTank printers could potentially print for years on a single ink tank. There are individual ink bottles for each colour, so you need to replace only the colour that is exhausted. This reduces wastage and proves to be cost-effective in terms of operation costs.

