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HP printer speed specifications cover various types of printing. For example, 4 x 6 inch color photo print speed tests are very different from 8.5 x 11 inch black text document tests. Below are explanations of various types of printing and the speed testing methodology for each.
Black Text, Color Text, Black Graphics and Color Graphics Pages per Minute (PPM)
Testing is conducted with the printer in draft or fastdraft mode (depending on the printer), unless otherwise specified, and uses 8.5 x 11 inch plain paper. Text tests are conducted using Microsoft Word; graphics tests are conducted using Microsoft Excel. The average ink coverage of black and color text pages is approximately 4 percent of the printable area (excludes margins) of the suite of test pages. Ink coverage of the color graphics pages is approximately 65 percent of the printable area of the test pages. Lastly, ink coverage of black graphics pages is approximately 6 percent of the printable area of the test pages.
Tests do not include or measure processing time, which will vary depending upon the computer configuration, image, software, and connectivity. Timing begins when the first page lands in the output tray and ends when the last page lands in the output tray. Multiple tests are conducted to confirm the accuracy of the speed measurement. PPM results are rounded down. For example, if the test resulted in an average PPM of 27.4, HP will specify 27 PPM.
Seconds per Color Photo
Testing is conducted with the printer in draft or fastdraft mode (depending on the printer), unless otherwise specified, and uses 4 x 6 inch photo paper. Photo speed tests are conducted using Windows Picture and Fax Viewer Software. Ink coverage is equal to 100 percent of the printable area of the photo paper in bordered mode, unless otherwise specified.
Tests do not include or measure processing time, which will vary depending upon the computer configuration, image, software, and connectivity. Timing begins when the first photo lands in the output tray and ends when the second photo lands in the output tray. Multiple tests are conducted to confirm accuracy of the speed measurement. Seconds are rounded up. For example if a photo prints in 14.5 second, HP will specify 15 seconds.
Black Laser Quality Speed (LQS) and Color LQS Pages per Minute (PPM)
LQS PPM is the average of graphics PPM and text PPM with the printer running in normal mode, unless otherwise specified, and using 8.5 by 11 inch plain paper. Text tests are conducted using Microsoft Word; graphics tests are conducted using Microsoft Excel. The average ink coverage of the black and color text pages is approximately 4 percent of the printable area (excludes margins) of the suite of test pages. Ink coverage of the color graphics pages is approximately 65 percent of the printable area of the test pages. Ink coverage of the black graphics pages is approximately 6 percent of the printable area of the test pages.
Tests do not include or measure processing time, which will vary depending upon the computer configuration, image, software, and connectivity. Timing begins when the first page lands in the output tray and ends when the last page lands in the output tray. Multiple tests are conducted to confirm the accuracy of the speed measurement. PPM results are rounded down. For example, if the test resulted in an average PPM of 10.7, HP will specify 10 PPM.
Black and Color First Page Out (FPO)
Testing is conducted with the printers in normal mode, unless otherwise specified, and uses 8.5 by 11 inch plain paper. Tests are conducted using Microsoft Word. Ink coverage is equal to approximately 5 percent of the printable area for the first page of the suite of text sample pages. Timing begins with pressing "OK" in the print dialog box and ends when the first page lands in the output tray. This test does include and measure processing time. Multiple tests are conducted to confirm the accuracy of the speed measurement. Seconds are rounded up.
Test Conditions and Equipment Used:
Printing speed tests are run in a normal office environment using current readily available equipment. As of December 2007, HP uses a desktop PC that includes a Pentium 4 processor, 2.4 GHz, using Microsoft Windows XP and a USB connection. Copy speed claims are tested as specified above in standalone mode - meaning not connected to a PC.
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