HP Web Jetadmin - Columns and Filters Detail

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different unit values depending on the manufacture, device model, and firmware. Always consult the
device manufacturer’s documentation for more information about this device counter. HP Web
Jetadmin simply reflects the value as represented by the device object.
Counter Examples
After all of the discussions on sheets vs. impressions, let’s take a look at examples of counters for three
different types of printers:
• Non-FutureSmart device with Duplex Impressions disabled
• Non-FutureSmart device with Duplex Impressions enabled
• FutureSmart device
Keep in mind that Web Jetadmin is completely at the mercy of the device and how it responds to
SNMP object queries. In all cases Web Jetadmin is querying a certain object and reflecting the
response.
Non-FutureSmart device with Duplex Impressions disabled
In the two examples above of non-FutureSmart devices with Duplex Impressions disabled, sheets
are still counted for duplex vs. simplex, but the impressions columns contain values that are based
upon sheet counters. The following formulas hold true:
Total Sheets = Total Simplex Sheets + Total Duplex Sheets
14,956 = 10,149 + 4,807 2,306 = 1,694 + 612
14,956 = 14,956 2,306 = 2,306
Total Impressions = Total Mono Impressions + Total Color Impressions
19,734 = 5,852 + 13,882 2,862 = 574 + 2,288
19,734 = 19,734 2,862 = 2,862
Total Simplex Sheets + 2*Total Duplex Sheets = Total Impressions + Total Blank Impressions
10,149 + 2*4,807 = 19,734 – 29 1,694 + 2*612 = 2,862 + 56)
19,763 = 19, 763 2,918 = 2,918
Engine Cycle Count can be a little unpredictable, but in many cases it will match the calculations
above for Total Impressions + Total Blank Impressions or Total Simplex Sheets +
2*Total Duplex Sheets.
Non-FutureSmart device with Duplex Impressions enabled
Recall from above discussions that enabling Duplex Impressions on older devices improves
accuracy for billing of color vs. mono but loses the ability to track simplex vs. duplex sheets and blank
impressions. Notice that the device above with Duplex Impressions enabled claims <Not
supported> for Total Sheets, Total Simplex Sheets and Total Duplex Sheets. Total Blank
Impressions also equals zero as this counter cannot determine blank pages once Duplex
Impressions was enabled. In this case:
Total Impressions = Total Mono Impressions + Total Color Impressions
(2415 = 453 + 1962)