HP Web Jetadmin - Columns and Filters Detail

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Older HP Device Models and Print Counters
HP devices, such as the HP Color LaserJet CM4730 or HP LaserJet M4345, are capable of providing
sheet or impressions counts, depending on the firmware revision and the Duplex Impressions feature
setting. Duplex Impressions, when enabled, forces the device to count only impressions, not sheets. If
this feature is enabled, Print Sheet Counter is marked <Not supported> and only Print Usage Counter
reflects device impression values.
If the Duplex Impression feature is not enabled, HP Web Jetadmin displays values for both Print Sheet
Counter and Print Usage Counter. And, if this feature is enabled, the Print Usage Counter reflects the
Simplex page count plus the Duplex page count multiplied by 2. If this feature is enabled, the value
reflected in Print Usage Counter is only an approximate impressions count because the device and
HP Web Jetadmin do not factor blank impressions into the value. This is due to the older HP device
not supporting Blank Impressions.
Note the example in Figure 15 (next page). A device list has the Print Sheet Counters, Print Usage
Counters, and Duplex Impressions columns enabled. We have used a mouse cursor activated tooltip
to show the Print Usage Counter details for an HP Color LaserJet CM6040 device that has Duplex
Impressions enabled. Note that Print Sheet Counter reflects <Not supported>, which is true for any
device where the Duplex Impressions feature is enabled. In this case, the device is set to count
impressions and is no longer capable of counting sheets.
More information can be found by reviewing the white papers titled Impression Counting in HP Web
Jetadmin and HP LaserJet Multifunction (MFP) and Single Function Series Products – Changes to the
Usage Pages for “Print Usage Tracker”. Both white papers can be found by searching
www.hp.com/support.
Engine Cycle Count
Many administrators use the Engine Cycle Count column to track device usage. This counter continues
to be available under the new Counters category. This counter is also available on many non-HP
devices as it is part of the Standard Printer MIB (RFC 1759). The device counter that HP Web
Jetadmin uses to reflect Engine Cycle Count is prtMarkerLifeCount (1.3.6.1.2.1.43.10.2.1.4). Most of
HP’s LaserJet products represent one page count for each output sheet in simplex mode and two page
count for each output sheet in duplex mode. The object used for Engine Cycle Count might have
Figure 15 – Older HP Device Model and Print Usage Counter