HP PageWide XL 4700 User Guide 1 - Page 191

Calibrate the scanner (MFP only), To calibrate the scanner

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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 (MFP only) 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, see Scanner troubleshooting on page 143; alternatively, you may want to consider buying a CCD scanner. To calibrate the scanner 1. Clean the scanner. See Clean the scanner's glass plate (MFP only) on page 180. 2. Go to the front panel and tap , then Scanner preferences > Calibrate scanner. 3. Follow the instructions in the front panel. The supplied maintenance sheet required to perform scanner calibration looks like this: Load the maintenance sheet into the scanner face up, centered and with as little skew as possible. Once the calibration is finished, the maintenance sheet should be carefully placed into its solid cover, and saved in a fresh and dry place. Otherwise, it could be damaged, which could affect the operation of your scanner in the future. ENWW Calibrate the scanner (MFP only) 185

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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 (MFP only)
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, see
Scanner troubleshooting
on page
143
; alternatively, you may want to
consider buying a CCD scanner.
To calibrate the scanner
1.
Clean the scanner. See
Clean the scanner’s glass plate (MFP only)
on page
180
.
2.
Go to the front panel and tap
, then
Scanner preferences
>
Calibrate scanner
.
3.
Follow the instructions in the front panel.
The supplied maintenance sheet required to perform scanner calibration looks like this:
Load the maintenance sheet into the scanner face up, centered and with as little skew as possible. Once the
calibration is finished, the maintenance sheet should be carefully placed into its solid cover, and saved in a fresh
and dry place. Otherwise, it could be damaged, which could affect the operation of your scanner in the future.
ENWW
Calibrate the scanner (MFP only)
185