Asian Photography — November 2017

90 november 2017 http://www.asianphotographyindia.com

HP EPSON

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IPM (Images Per Minute)

I PM(I ma ges Per Mi nute)

Images Per Minute

(IPM) Test

The IPM test is the industry standard

to rate printers on, and we have been

conducting it for the past two years

now. We put the printers to test using

the First Set Out Time (FSOT) on short,

medium and long jobs, and following

are the results.

What is IPM?

IPM or Images Per Minute is the new industry measurement standard that offers a consistent procedure for testing and

comparing print speeds of different printers. The printers are tested as soon as they come out of the box, without changing its

settings at all.

There are three ways to test the printers on their IPM. First Set Out Time (FSOT) measures the time from the beginning

of the printing process to the moment the fourth page is out in the output tray. Effective Throughput (EFTP) is the time from

the beginning of the process to the moment the last page of the printing job comes in the output tray. In Estimated Saturated

Throughput (ESAT) the time from the moment the fourth page goes to the output tray to the time the last page of the printing

job is collected is measured.

In our test, we conducted the FSOT type, under three types of printing jobs. They included Short Job (printing one 4-page

file), Medium Job (printing one 4-page file, then repeatedly printing that for 30 seconds more), and Long Job (printing one

4-page file, then repeatedly printing that for another 4 minutes).

EPSON L485

The EPSON printer fared the best in this test. It could print 35 pages in 5 minutes and 19 seconds. It recorded an IPM of 6.74.

HP Deskjet 3776

The HP printer fared average, having recorded an IPM of 5.81, printing 31 pages in 5 minutes and 33 seconds.

Copy Test

For the copy test, we used the text

template we designed earlier for the test,

and tested the printers on how quickly

they were able to copy it in colour as well

as black and white.

EPSON L485

The EPSON printer recorded 10.17

seconds in the black and white copy and

32.99 seconds in the colour copy.

HP Deskjet 3776

In the copy test, HP clocked a record

time of 40.41 seconds in black and white

copy, and 53.04 seconds in colour copy.

B/W Col our B/W Col our

HP EPSON

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Copy Test

Time (Seconds)