HP LaserJet P2015 - Software Technical Reference

Clicking Restore Modes and then clicking Apply causes the HP LaserJet P2015 printer to set all of the
print modes to the original factory defaults.
NOTE: Click Apply to make the changes take effect.
The Print Modes screen contains the following sections:
Media Type section
The Media Type section of the Print Modes screen contains options to modify the engine print mode
separately for each media type in the driver. Only one selection can be made for each control. The
following controls are available:
●
Fuser. The fuser temperature control in the engine is a complex algorithm that is based on the
print mode and print duty cycle. An “increase” or “decrease” in fuser temperature means that the
fuser control algorithm increases or decreases the current temperature target by some amount
which depends on media type and other factors.
The following settings are available for the Fuser control:
◦
Paper curl . This setting decreases fuser temperature. The instant-on fuser applies heat
mostly on the image side. This causes asymmetric drying of the paper. When the paper
reabsorbs moisture after printing, the difference between the front and back surfaces causes
curl (heavy toner coverage also causes curl). Decreasing the heating of the paper and toner
tends to reduce curl (watch out for “cold” offset). Paper curl is increased on lighter papers and
in higher humidity.
◦
Heavy coverage. This setting increases fuser temperature. The first option is to pick a heavier
media type in the driver. The defect in this case is “cold” toner offset in the fuser. The toner
does not melt sufficiently to adhere to the paper, so large patches stick to the fuser sleeve
and offset 55 mm (2.17 inches) down the page.
◦
Toner offset. This setting decreases fuser temperature. The first option is to pick a lighter
media type in the driver. The defect is “hot” toner offset in the fuser. The toner next to the fuser
sleeve gets too hot and partially separates from the toner that sticks to the paper. Offset also
occurs at 55 mm (2.17 inches) down the page, but it looks more like faint ghosting.
◦
Less/More fusing (-2, -1, +1, +2). These settings provide two levels of decreased fuser
temperature and two levels of increased fuser temperature if the other adjustments are
insufficient. Increment this control to find the best setting.
●
Transfer. The transfer bias voltage control in the engine is a complex algorithm that is based on
the print mode, toner cartridge and humidity. An “increase” or “decrease” in transfer bias means
that the transfer control algorithm increases or decreases the transfer bias by some amount, which
depends on media type and other factors. The following settings are available for the Transfer
control.
The following settings are available for the Transfer control.
◦
Dry paper. This setting increases transfer bias. Some papers (notably Chinese papers)
become highly resistive in dry environments. To improve transfer, increase the transfer bias
voltage. The range of paper resistivity in low humidity is so wide that a single, standard engine
print mode cannot cover all the cases.
◦
Humid paper. This setting decreases transfer bias. All papers absorb water at higher humidity
and become electrically less resistive, resulting in transfer defects. The engine has a humidity
sensor and also checks the conductivity of the ETB in order to estimate the humidity of the
media, but this can be inadequate in more extreme cases.
ENWW HP ToolboxFX 47
Software description