Inkjet Print Speed Methodology
Print Speeds, stated as pages per minute or PPM, reflect measured values based on Brother’s particular testing conditions and are for reference only. Actual print speed may vary depending on printing conditions such as computer configuration, operating system, document complexity, printing frequency, connection method, application software and other factors. Print speed testing does not take into account processing time and data transfer time.
1. Maximum Print Speed on Fast Mode Testing Conditions:
Print speed testing is conducted with the sample pages portrayed below created in Microsoft Word. The printer runs in Draft mode using A4/letter size plain paper. System configuration for testing utilizes a Dell Pentium M, 1.8 GHz, 512 MB RAM Note Book PC running Windows XP Professional with a USB connection to the printer. Print speeds are calculated based on making a continuous printing of the test page with measurement commencing upon the completion of the first page.
2. ISO/IEC 24734 Print Speed and ISO/IEC 24735 Digital Copy Speed
The Brother advertised ISO/IEC 24734 ppm print speeds are based on averages of the ESAT print speed test in default single side mode. Terms and Methodologies - Test Patterns <ISO/IEC 24734 – For Print Speed Measurements> Word® File Set
Definitions
FSOT First Set Out Time (sec)
Number of seconds between the initiation of the job to the complete exit of the last page of the first test set.
EFTP - Effective Throughput (ipm/ppm)
Average speed at which a device produces pages measured from the initiation of the job through the complete exit of the last page of the last test set.
1 set - Average print speed for one set of typical office documents.
1 set + 30 sec - Average print speeds for multiple set of documents (one set of typical documents plus 30 seconds).
1 set + 4 min - Average print speeds for multiple set of documents (one set of typical documents plus 4 minutes).
ESAT - Estimated Saturation Throughput (ipm/ppm)
Rate at which a device produces pages measured from the complete exit of the last page of the first test set through the complete exit of the last page of the last test set.
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