HP LaserJet Multifunction (MFP) and LaserJet Single Function Products - Changes to the Usage Pages for "Print Usage Tracker"

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The information below provides an explanation of what values change and how those changes will be
counted on both Usage Pages. All of the changes listed below apply to both the printed Usage Page
and the EWS Usage Page. See Figure #1 and Figure # 2 for sample Usage pages with the changes
noted to match the bullet points below (A, B, C, etc.).
NOTE: The examples provided are a representation of a Usage Page for an HP LaserJet Multifunction
Device. Changes for Single function printers will be very similar to what is presented below where
applicable.
Usage Page Changes
A) Duplex counts for Mono and Color will count only sides where toner has been applied and will
not increment for sides that do not contain toner.
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B) The Duplex Mono Column count value will only increment by a value of one for each side
of a
duplexed sheet of paper where Mono toner is applied to the page. (Example: If only one side of
a sheet of paper has Mono toner applied, the count will increment by a value of one. If both
sides have Mono toner applied, the count will increment by two.)
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C) The Duplex Color Column count value will only increment by a value of one for each side
of a
duplexed sheet of paper where Color toner is applied to the page.
(Example: If only one side of
a sheet of paper has Color toner applied, the count will increment by a value of one. If both
sides have Color toner applied, the count will increment by two.)
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Additional Example: A three page document from an application is printed in duplex
mode. The first page of the document contains color. The second page and third page contain
black text (K) toner only. The document is printed on two sheets of paper and includes one side
with Color toner (C, M, Y) applied (Page 1), one side with Black toner (K) applied (Page 2), one
page with Black toner (K) applied (Page 3). The last page of the second sheet of paper is left
blank because there are only three pages in the document. As a result, the Color Duplex count
will increment by 1 and the Duplex Mono count will increment by 2.
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This does not apply to copy jobs. Copy jobs scan images into the copy pipeline using a CCD scanner. When this process is
performed, it is similar to taking a picture of the original. Because of how this technology works, the device does not have the
ability to determine whether the original contains an image on the page and therefore if a blank page is copied, the copy
system will still count the page as a Mono or Color page based on the original setting for the copy.
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NOTE: Most products support the Duplex Blank Pages Feature to increase the throughput speed of the device. Products that
support the feature and have it enabled will not duplex jobs that contain one sheet of paper with toner only applied to the front
side of the sheet. (e.g., 1 sheet of paper with an image on page 1, and page 2 left blank) Due to this behavior, the Simplex
count will increment by one instead of the Duplex Count. This feature is enabled by default and can be accessed through the
Control Panel at Administration >> Device Behavior >> Tray Behavior >> Duplex Blank Pages (MFP Multifunction Devices) and
from the MENU button >> Configure Device >> System Setup >> Tray Behavior >> Duplex Blank Pages (For single function
devices)