HP Officejet Pro K850dn Printer - Manual (Page 89)

Clean the print zone of the printer
After extensive printing, ink might be deposited on the print zone of the printer, causing ink to smear
on the non-printed side of the media or the edge of a stack of printed media. To remove the
deposited ink, use a lint free cloth to clean the print zone, including the plastic ridges.
Enable the printer's output ramp
When printing in Fast Normal (default) print mode, the printer does not use the output ramp to hold
each printed page before releasing it onto the output tray. If the printer starts printing the next page
while the printed page is still drying on the output tray, the newly printed page might rub against the
printed page on the output tray, causing ink to smear. Severity of smearing depends on the amount
of ink used on each printed page.
To prevent the printed pages from rubbing against each other, print using the Normal or Best print
mode.
Alternatively, in the Toolbox, turn on the output ramp for printing in Fast Normal mode. Click the
Printer Services tab, and then click Configure Output Ramp. See
Toolbox (Windows) .
ENWW Troubleshooting 81