HP Designjet T2300 eMFP Printer series - Image Quality Troubleshooting Guide: English

Sometimes the color mismatch between adjacent modules can be enormous, showing a serious scanner
malfunction, as in the following example. If this occurs, see
Completely wrong colors on page 33.
Actions
1. Repeat the scan or copy, setting the content type to Image, reducing the background cleaning to
0 or turning the original 90 degrees before scanning it again.
2. If the problem persists, clean and calibrate the scanner as indicated in
Scanner maintenance
on page 37. If calibration ended without errors, proceed to analyze again pattern number 9
and modules A through E of the diagnostic plot.
3. After analyzing pattern 9, if you see some color differences between left and right sides of the
bars for neutral and vivid colors, call HP support and report “small color differences between
adjacent CIS modules”. Otherwise, if you see color differences for vivid colors but not for neutral
colors, see
Clipping in dark or light areas on page 26. If necessary, see also Grain in area fills
when scanning plain paper on page 21.
Vertical light lines at the intersection between CIS
modules
This problem can be found when scanning large uniform area fills which are made of some light color.
You sometimes find light vertical bands (around 0.5 cm wide) at the intersection between two CIS
modules, as in this example. Please note the black arrow indicating the scanning direction in this
example.
Actions
1. Repeat the scan or copy, setting the content type to Image, reducing the background cleaning to
0 or turning the original 90 degrees before scanning it again.
ENWW
Vertical light lines at the intersection between CIS modules
23
Scan-quality issues