Using DMA transfer to send print data to the computer may help speed up printing.
You'd have to use DMA with polling, and thats usually not supported
a customer as an IBM Desktop computer
Laser printers and ink-jet printers don't use a ribbon.
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dma channel
What printers use 352 ink cartriges
Printers can be categorized in a number of ways.There are inkjet and laser printers. Inkjet printers use ink cartridges while laser printers use laser toner cartridges.Also, printers can be classified as colored or black.
From http://www.brainbell.com/tutors/A+/Hardware/Direct_Memory_Access_DMA.htm "DMA channels use the same rules as IRQs. Just as with the 8259 chip, DMA availability soon became a problem because an insufficient number of channels was available. A second DMA chip was added for 286-based computers. Just like the second IRQ chip, these two are cascaded, allowing a total of eight DMA channel assignments (usually referred to simply as DMA channels). The floppy disk drives on all computers use DMA channel 2."
Laser printers use a drum and toner.
DMA operations
DMA - magazine - was created in 1993.
DMA - magazine - ended in 2003.