- Hewlett-Packard Printer User Manual

20 The HP Color LaserJet 4550 Series Printer
EN
Factors affecting printer performance
Several factors affect the time it takes to print a job. Among these is
maximum printer speed, measured in pages per minute (ppm). Other
factors that affect printing speed include the use of special media
(such as transparencies, glossy media, heavy media, and custom-
size media), printer processing time, and download time.
The time required to download a print job from the computer to the
printer and then have the printer process the job depends on the
following variables:
● the complexity and size of graphics
● color versus black and white
● the printer’s I/O configuration (network versus parallel speed)
● the speed of the computer you are using
● the amount of printer memory installed
● the network operating system and configuration (if applicable)
● printer personality (PCL or PostScript 3 emulation)
Note Adding additional printer memory may resolve memory problems,
improve how the printer handles complex graphics, and improve
download times, but will not increase maximum printer speed (ppm
rating).