HP CM8060 Color MFP Kundendienst Handbuch Seite 215

Pen Density Compensation calibration
Purpose
This calibration creates a uniform density across the printed page and ensures a uniform tonal
gradation.
When to run
Run the Pen Density Compensation calibration in the following situations:
●
The MFP is installed.
●
A new pen is installed.
HINWEIS:
a Pen Density Compensation calibration. For help running a New Pen Service routine, see
Pen Servicing routine" auf Seite
APA before running a . For help running a Pen Cleaning routine, see
auf Seite
●
Color print-quality problems exist. Colors are not uniform across the same page.
Required time
12 to 15 minutes
Internal operation
The calibration compares ink levels on the paper between pens of the same color from each
carriage.
A color block from each pen is deposited side-by-side on a sheet of paper. The Tetris sensor (SN58)
determines a density value for each of the color blocks.
Computations are made that determine the density difference between similar colored blocks. The
calibration information is stored in NVM. Adjustments are made to the amount of ink delivered by
each pen to balance the ink output uniformly across the paper.
Instructions
ACHTUNG:
this calibration.
▲ See „Engine Calibrations 1" auf Seite
Drop Detect Beam calibration
Purpose
This calibration determines the center position of each of the six Drop Detect channel beams. This
data is used to position the pens accurately over the Drop Detect assembly for determining pen
health.
DEWW
After installing a new pen, run a New Pen Service routine and an APA before running
151.
This calibration is light-sensitive. All of the MFP covers must be installed before you run
150. In all other cases, run a New Pen Service routine and an
58.
„New
„Pen Cleaning routine"
Pen calibrations 149