What is tri color in printer?
Tri-color cartridges are a single unit that contains all three ink colors (cyan, magenta, and yellow) while individual ink cartridges comprise only one printer ink color. With Individual ink cartridges, like Epson ink cartridges, it slots into the printhead inside the printer.
Multi-ink cartridges, also known as multi-color or tri-color cartridges, have separate reservoirs for each color, all housed within a single unit. Multi-ink cartridges usually contain cyan, magenta, and yellow inks.
Therefore, you cannot perform Black copies with the Tri-Colour cartridge. When you print from your computer, the computer may send the print job to the printer as an image file. Therefore, even if you are printing a black only document, colour ink may be used to enrich the document.
A: No, you dont need tri color cartridge to print black and white.
The tri-color ink cartridge is a special type of ink cartridge that can be used with most printer models. It contains three separate colors of ink, which allows the user to print in all different colors at once.
Both RGB and CMYK are modes for mixing colour in graphic design. Monitors use RGB whereas printers use CMYK. This means that RGB colour mode is best for digital designs, while CMYK is best for print materials.
How to Refill HP 303, HP 303XL, 305 or 305XL Tri-Colour Ink Cartridges
The tricolor pattern requires the tan point gene, and consists of 3 well-defined colors — one base color, white, and tan. The base color can be any one of a range of colors (black, blue, lilac, chocolate), can be affected by dilution (d/d) and intensity, or another pattern, such as merle or piebald.
All printers are built to vaporize a small amount of ink from each cartridge (which means heat is applied) every time it prints something out. In other words, the printhead engages with all ink cartridges including the empty ones every time you print anything, regardless if it's black and white or colored.
While purple isn't one of the most commonly used colors in marketing and promotional material, it's undoubtedly one of the most challenging colors to print accurately. Whether there is a correlation here or if it's merely a funny coincidence is debatable.
Will my printer work if I only replace the black ink?
When color ink is expended and black ink still remains, you can continue printing for a short time using only black ink. However, you should replace the expended ink cartridge(s) as soon as possible.
But unfortunately, the problem is that the color printing inks--cyan, yellow, magenta and black--are actually transparent. If you try to print light-colored ink on dark paper, the ink won't show through. However, you can get around this by printing a black background onto the paper and the white text over it.

Go to your computer and click “Print” from the file that you wanted to print. Click on “Properties” and then the “Color” tab next. Select the “Print in grayscale” option by clicking on its checkbox. You can now start printing in black and white.
Find and right-click on your printer and click on Printing Preferences. Go to Quick Setup tab and then select Grayscale. Select Plain Paper as your media type option. Click Apply.
Grayscale printing is better for black and white images, because of this setting's ability to create various contrasting shades and finer details.
Don't use RGB colors, design in CMYK.
The RGB colors you've been using (almost) all your life on screen are based on light. Red, Green and Blue lights are added together to reproduce other colors. However, your printer is much more limited and won't be able to reproduce all the colors you see on screen.
Printing in black and white is possible without color ink, but only on select printers. Switching to grayscale mode in printer preferences is an easy way to print without color ink.
If you are using the black cartridge, prints are in black and white (grayscale). If using the color cartridge, colors print normally but black prints lighter than usual.
White backgrounds: Simple and classic, black text on a white background provides the highest readability ratio. Blues and grays also provide the right contrast and thus work well on white backgrounds. However, avoid using white backgrounds for an entire webpage, which can strain the eyes.
Scanners, digital cameras and computer monitors use red, green and blue (RGB) light to display color. Commercial printing presses print with cyan, magenta, yellow and black (CMYK) ink, called process printing, instead of RGB light, and therefore produce a different range of color.
Is it better to print in grayscale or color?
Black and white printing jobs tend to look more formal and professional, which makes them a great option for business bulletins, business proposals, or newsletters. Color printing is usually the better option if you are trying to create documents that have pizzazz and personality.
The tricolor pattern requires the tan point gene, and consists of 3 well-defined colors — one base color, white, and tan. The base color can be any one of a range of colors (black, blue, lilac, chocolate), can be affected by dilution (d/d) and intensity, or another pattern, such as merle or piebald.
The National flag of India is a horizontal tricolor of deep saffron (kesari) at the top, white in the middle and dark green at the bottom in equal proportion. The ratio of width of the flag to its length is two to three. In the centre of the white band is a navy blue wheel which represents the chakra.
How to Refill HP 303, HP 303XL, 305 or 305XL Tri-Colour Ink Cartridges
A tri-colored American Bully is one that has three colors on their coat instead of the usual one or two coat colors. The tricolor pattern features three clear and separate – one base color, tan and white. The base color can be any of the range of American Bully coat colors including black, lilac, blue and chocolate.