When purchasing a printer, consumers can choose between two types of printers: inkjet printers or laser printers. Both types have their advantages and disadvantages. You will benefit more from the advantages if you decide at the time of purchase for a printer that best meets your printing requirements and takes into account individual needs such as low noise, economical consumption of energy and printing materials, etc. On the other hand, when you buy a printer, you don't have to pay for functions that you don't need anyway for individual use.

INKJET PRINTER
Inkjet printers are the most popular in private households worldwide. Having installed such a device at home, you no longer need to hire a photo lab. The photos, drawings and other graphic images created on the inkjet printer and on special paper are of outstanding image quality and may have a professional appearance. An inkjet printer consumes little power in sleep and standby modes and is therefore very popular in private homes. The purchase price and the price for the ink cartridges are easy on the budget and also speak for inkjet printers. However, with an inkjet printer, you have to accept a slower print speed because a inkjet printer prints line by line and not the whole image or page at once like a laser printer. Also, you should not leave your inkjet printer unused for a long period of time, as this will cause the cartridge to dry out, resulting in the printer not being able to print. In addition, automated cleaning processes that you cannot influence use additional ink in order to clean the printheads.
This means that ink cartridges (inkjet printers) have to be changed more often than toner (laser printers).
Taking into account the fact that a special paper should be used when printing photographs, the price per printout for the inkjet printer is higher overall than for the laser printer. Also, if longer print durability is important to you, you need to know that inkjet printers don't last very long and external influences such as water droplets or sunlight can affect the quality of the images.
In terms of environmental friendliness, inkjet printers outperform laser models as they use less electricity and do not emit tiny particles that could be dangerous to human health.

Advantages of inkjet printers:

- low purchase costs
- Excellent image quality
- Low power consumption
- No harm to people or the environment from the extinguishing toner dust
- Good for color images

Disadvantages of inkjet printers:

- Higher cost per printed page
- Slow print speed
- Color cartridges dry up over time

LASER PRINTER
Laser printers impress with their high speed in text printing and are therefore more likely to be used in open-plan offices to avoid queues at the printer. The usually bulky shape of the printer device is less of a nuisance. The black and white print such as text of laser printers is of excellent quality, the costs for the paper are low. The cost of each individual print is also much lower than when using inkjet technology. Laser prints are very durable, even if the paper is exposed to the sun or moisture.
However, the laser printers and copiers should be set up in well-ventilated rooms, since the devices emit toner dust and toner particles, which can trigger allergic reactions on contact with skin and mucous membranes.

Advantages of laser printers:

- High printing speed
- Accurate black and white printing
- Low cost per printed page
- Relative insensitivity of the finished images to sun and humidity
- No need to refill cartridges frequently
- Cartridges do not dry up
- Except for special paper for inkjet printers, almost all types of paper can be used

Disadvantages of laser printers:

- high purchase costs
- high energy consumption
- Laser printers encounter  tiny particles which, depending on the amount of air inhaled, can be harmful
- Moderate color print quality (Worse than inkjet)

Basically no. Fluctuations in color performance are evident only with a very close and careful examination, and only if we compare prints before and after Refill.
These color changes, however, are so small and subtle that they can be easily corrected with a slight adjustment to the color management settings in the menu or in the printer driver.

The answer to this question depends, above all, on the toner cartridge type, on its age but also on the print quality that it had before the refill.
As a rule, the following apply in general:
1. Toner cartridges, which have the drum cylinder integrated, should not be refilled more than once because the drum is one of those parts that wears out a lot.
2. Toner cartridges having a rubber "toner roll" should not be refilled more than 3 times, and the decision depends solely on whether the rubber "toner roll" is damaged before filling such as minor scratches or blows. Especially if such a cartridge has been stored for a long time, it is very likely that the elastic surface of the "toner transfer roller" has lost its elasticity, has hardened and does not give satisfactory prints.
3. Toner cartridges that leak and lose toner due to multiple refills should not be refilled.

The original cartridges (starter Cartridges) that accompany the printer with its purchase, usually have a small or at most half the amount of toner. Most of these cartridges can be refilled without any problem. Exceptions are the toner cartridges of the C3000 and C5000 series of the manufacturer OKI. Due to their special technical construction, they can not be refilled, so we suggest our customers to buy a second Set of Original or Compatible toner cartridges so that they can refill them later.
On some types of printers, such as the Lexmark C520 series, starter cartridges are designed to take up only a small amount of toner. In this case, we do not have to empty the whole bottle into the cartridge at once, but fill it in several stages.

The warranty of the printer is independent and you are not affected by whether we use Compatible or Original consumables.
For example, the printer manufacturer Hewlett-Packard explicitly states in the warranty terms: "For printers, the use or supply of consumables from other manufacturers does not limit the warranty coverage." Other printer manufacturers may not be as clear on the wording, but there are no warranties that cancel the warranty on compatible cartridges.
The exception is: It is legally crucial if the manufacturer can demonstrate very clearly that the damage was not caused by materials made by him. Thus, he mentions e.g. HP: "However, if malfunction or damage to the printer system can be attributed to the use of compatible or refilled consumables by other suppliers or other manufacturers, then HP to correct or repair the printer or this defect, the cost of services such as labor and the additional cost of spare parts that may be needed are not covered by the warranty and are charged to the user."
However, probably for time reasons, because the appropriate tests that have to be done to find it out are a lot, there is a relaxation of the technicians in this regard.

Almost all printer manufacturers put in toner cartridges (but also in many other consumables such as Drums) these so-called counters (Chips). which you place fits the model of the printer but also on the other hand to determine the life limit of the cartridge or otherwise to limit the number of prints it can make. For this reason, when we want to put in our printer a cartridge that had emptied and we refilled it. In order for the printer to recognize it as new we must always replace the existing "burned" Chip with a new one after refilling.
If we fill an empty cartridge that use a Chip and insert it into the printer without changing the Chip the printer will lock and will not recognize it until we insert a new Chip into the cartridge (with very few exceptions).
In Chip-free cartridges, in most cases it usually has a gear (plastic part eg arm or lever) that replaces the operation of the Chip. In practice, of course, a Chip is much more difficult to bypass, by a lever or a gear, which is why lately almost all manufacturers, put in their cassettes these so-called "smart" Chips.
Also lately we see more and more often, models of printers that in the original cartridges (starter Cartridges) those that accompany the printer with its purchase, do not have chips. In most of these cases the cartridges can not be refilled because the Chip can not be inserted (many times they also lack the Chip mounting base or some other accessory that is available in the commercial cartridges) although there are still some exceptions.

There is an opinion that in a cartridge that has a little toner left, we can empty it until the end only by changing the Chip (without filling it with toner). This can only be done on very few models and also depends on whether the amount of toner left in the cartridge is sufficient.
Most cartridges are unfortunately protected by an additional sensor that detects the toner level which then stores the information in the Chips memory. If the sensor determines that the amount of toner left in the cartridge is not enough to print, it empties the chip, so the chip is reseted, without this process being canceled or reversed even if we later refill the cartridge with toner, it will remain empty for the printer (due to the empty chip).
For this reason, we always recommend to first fill the cartridge completely and then always inserting a new chip so that everything works well and we will have no problems.