Printronix P5000LJ Series - Manual (Page 136)

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Chapter 4 RibbonMinder
If the Ribbon Type is changed from the factory default to another value,
Ribbon Usage will adjust accordingly, where 100% corresponds to the
proportionate value of the selected type. For example, if the Ribbon Type is
set to Printronix 60 (approximately 30 million), Ribbon End Point set to
NORMAL would correspond to 30 million characters. With this same 60 yard
ribbon, if Ribbon End Point was set to Reduce 50%, the character count
would be set to 15 million, etc. Ribbon Minder will track the ink consumption
based on these new parameters, display 100% when a new ribbon is installed
and tracking usage to 0%.
NOTE: Ribbon Ink Consumption is determined not by actual character count,
but by an accumulation of a specified number of printed dots in any
one of a number of pre-defined vertical zones. It is stated here as a
function of characters printed for user clarity.
New Rib. Detect
The factory default setting is Enable. When the RIBBON INK OUT / CHANGE
RIBBON message displays, and a new ribbon is installed with New Ribbon
Detect enabled, the Ribbon Minder will automatically reset by opening the
platen. If New Ribbon Detect is set to Disable, the Ribbon Minder must be
manually reset by using the New Ribbon function.