Entering the Service Calibrations menu
1. Once the message Ready is displayed on the front panel, press the Menu key.
2. Once inside the Printer menu, press the Down key first, and hold it down while pressing the Cancel key.
You are now in the Service menu.
3. Select Service calibrations and press the OK key.
4. Scroll through the various service calibrations and press the OK key to begin the highlighted calibration.
NOTE: If the printer is not used for 135 seconds, the printer leaves the Service Calibrations menu and
you must repeat the above steps to return to it.
Paper-advance calibration
The purpose of this Service Calibration is to calibrate the nominal advance of the paper to compensate for
any irregularities in the drive roller, which is not a perfect cylinder. Calibration is necessary to control the
precise movement of the paper in order to avoid print-quality problems such as banding.
1. In the Service Calibrations submenu, select Paper Advance Calibration and press OK.
2. The Paper Advance Calibration submenu offers four options.
●
Check calibration status tests whether the current calibration values are valid.
●
Perform new calibration performs a calibration in order to obtain a new set of calibration values.
The calibration values are automatically set to zero when a calibration process is launched.
●
Reset current calibration sets all the calibration values to zero.
●
Show current calibration values displays the current calibration values.
Check calibration status
This option tests whether the current calibration values are valid. The process is very similar to the
calibration process. The printer makes a series of paper advances, and the OMAS sensor registers the
distance covered in each advance.
NOTE: Before starting the process, make sure that HP Coated Paper is loaded and ready to print.
At the end of the process, the printer checks whether the current calibration values are valid, using the data
obtained during the paper advances. If the values are considered valid, then the following message will be
shown.
ENWW Entering the Service Calibrations menu 115
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