Olivetti PR2 Service Manual page 81

To adjust the photosensors, proceed as follows:
1. Power on the printer with the cover open and while holding down the three console keys.
2. Wait for the acoustic signal indicating that the printer has switched to the adjustment procedures.
3. Manually move the print head to the left-hand side and close the cover.
4. Press the "Station 1" key to enter into the photosensor and alignment adjustment menu.
5. Press the "Station 1" key to enter into the photosensor adjustment menu.
6. After this phase the sensors have stored the current ratings without the paper being loaded and
the paper feed motor will begin to turn waiting for a form to be inserted.
7. Insert the adjustment mylar code 473245H in the front slot and press the "Station 2" key. The sheet
will be completely inserted to cover all the photosensors, and the current will be measured in the
paper present condition.
If there are no failures the console LEDs will remain off and the sheet will be automatically ejected.
Inserting the sheet again will enable the values read and preselected for each single photosensor to
be printed. If the adjustment procedure was not successful, the faulty photosensor will be identified
through the different LED lighting patterns. Pressing any key on the console will identify any other
faulty photosensor.
If calibration is not concluded successfully, all other calibrations or measurements will not be made.
In this case, power off the printer and eventually repeat the operation. If, instead, the operations are
successful, the printer will automatically switch to its initial general environment thus allowing any
calibration or adjustment procedure to be selected.
683311W
Service Manual
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