HP Designjet T3500 Production eMFP - Manual (Page 181)

9. Close the scanner cover and gently push it down to lock it into place.
10. Reconnect the printer's power cable, turn on the power switch at the rear, and turn on the printer using
the
Power key.
Calibrate the scanner
Your scanner has been calibrated at the factory, and theoretically CIS scanners do not need to be recalibrated
during their lifetimes. Nevertheless, because of environmental changes, your scanner may start showing
image defects that can be easily corrected by recalibrating the scanner. The whole procedure takes less than
10 minutes, and you are recommended to recalibrate the scanner whenever you see some undesired artifact
or a lack of quality in scanned files or copies, bearing in mind the limitations of CIS technology already
explained in this guide. If you perform calibration successfully and still have concerns about the image
quality, please read
Troubleshooting scan-quality issues on page 212 in order to detect whether you are
facing a product limitation, and may want to consider buying a CCD scanner.
To calibrate the scanner
1. Clean the scanner. See Clean the scanner’s glass plate on page 163 .
2.
Go to the front panel and press , then Image-quality maintenance > Calibrate scanner.
3. Follow the instructions in the front panel.
The supplied maintenance sheet required to perform scanner calibration looks like this:
ENWW Calibrate the scanner 171