Canon BJC-250 - Manual (Page 24)

If you will be printing text in black only, choose a Color Selection of Black and
White rather than Grayscale. Print draft documents in Monochrome rather than
Color, or use Draft print quality when printing in color.
Limit the number of colors on each page.
The computer will need to calculate and transmit fewer dots. Too many colors can
make the image confusing and less effective as well as cause the print speed to slow
down.
Use primary colors when printing presentation graphics.
Use Black, cyan, yellow, magenta, blue, green, and red when possible. The
computer will need to calculate and transfer less dot information.
Use the Draft print quality.
The printer will need to image fewer dots.
Use Plain Paper as Media Type.
The print head will make only on pass for each printed line.
Use smaller graphics and more white space in your documents.
The computer will be able to prepare the print file faster.
Add RAM to your computer.
The computer will be able to prepare the print file faster.
Use a computer with a faster processor.
The computer will be able to prepare the print file faster.