Functional Overview
Formatter System
Resolution Enhancement (REt)
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The printer’s Formatter PCA contains circuitry for Resolution
Enhancement technology (REt), which modifies the standard video
dot data on its way to the DC Controller to produce “smoothed”
black-to-white boundaries. REt is user-adjustable from the front
control panel (LaserJet 4P/4MP only), from HP Explorer’s Remote
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Control Panel (Print Quality Category), or from some software
applications. Available settings are Light, Medium, Dark, or Off.
The default setting is Medium.
Note
REt settings sent from software or printer
drivers override any control panel settings.
Print Density Adjustment
Adjusting print density affects the line width (boldness) of the
print image. This is accomplished by varying the developer dc
bias, which controls the amount of toner applied to the
photosensitive drum. Print Density is adjustable through HP
Explorer’s Remote Control Panel (Print Quality Category). The
range of settings is from 1 (lightest) to 5 (darkest). The default
setting is 3.
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