The frequency at which you should clean your printer depends on several factors, such as the how often you use it, the environment in which the printer is located, and the type of printer you have. As a general rule, it is recommended that you clean your printer every 6 months to ensure that it continues to function properly and produce high-quality prints.

Here are some guidelines:

• Inkjet printers: Inkjet printers should be cleaned more frequently than other types of printers because the ink can dry out and clog the print heads. It is recommended that you clean your inkjet printer every 3-6 months, depending on how often you use it.
• Laser printers: Laser printers do not require cleaning as often as inkjet printers because they do not use ink. However, they still need to be cleaned to remove toner build-up and prevent paper jams.
• Environment: If your printer is located in a dusty or dirty environment, you may need to clean it more frequently. Dust and debris can clog the printer’s internal components and cause problems with print quality.
• Heavy use: If you use your printer frequently, you may need to clean it more often to maintain its performance. 

If your printer is printing blank pages but your ink levels are normal the problem will, more than likely, be the printheads. If it has been a while since your last print, some of the ink in the cartridges may have dried out. This blocks up the printheads and allows no ink to pass through onto the paper. To fix these issues, the printheads will need cleaning.

Another sign is if your printouts are faded and not reaching the standard you’re used to, or if your documents are blurry. If this is the case, you may find that when you print images you’ll noticed that the image is missing one colour overall. This is due to the CMYK cartridge not producing all of its dot work.

The frequency at which you should clean your printer depends on several factors, such as the how often you use it, the environment in which the printer is located, and the type of printer you have. As a general rule, it is recommended that you clean your printer every 6 months to ensure that it continues to function properly and produce high-quality prints.

Here are some guidelines:

1. Inkjet printers: Inkjet printers generally have a lifespan of 3-5 years with proper maintenance. However, some high-end models can last up to 10 years.

2. Laser printers: Laser printers typically have a longer lifespan than inkjet printers and can last 5-10 years with proper maintenance. Some models can last up to 15 years or more.

3. All-in-one printers: All-in-one printers that combine printing, scanning, and copying functions tend to have a shorter lifespan than single-function printers. They typically last 2-4 years with proper maintenance.

4. Large format printers: Large format printers used for commercial or industrial printing typically have a longer lifespan than consumer-grade printers. They can last 5-10 years or more with proper maintenance.