Printing Photosensor Calibration Values - Olivetti PR2 PLUS Service Manual

Printing photosensor calibration values

Bi-directional printing speeds up the writing of the printer, but it could reduce printing quality if a misalignment
occurs between the lines written from left to right and vice-versa. To eliminate this defect, you can optimise the
alignment of bi-directional printing through calibration.
Calibration must be performed for each of the following printing modes:
•
Very High Speed Draft, High Speed Draft
•
Draft
•
Near Letter quality, Letter quality
To calibrate the alignments, proceed as follows.
1. Open the printer cover.
2. Power on the printer, with the cover open, keeping the three
console keys pressed.
3. Wait for the acoustic signal that indicates access to the
calibration and adjustment procedure, then close the cover.
4. Press the STATION1 button.
5. Press the STATION2 button.
6. Press the STATION1 and STATION2 keys simultaneously.
For all the printing modes, the default values theoretically
near to the correct ones will be saved.
7. Insert an A4 sheet in the front slot to check print alignment
status.
8. Press the STATION1 and/or STATION2 keys to calibrate the
alignments.
• By pressing the STATION1 key you can anticipate start of
printing.
• By pressing the STATION2 key you can delay the start of
printing.
9. Repeat points 7 and 8 until calibration has been completed.
10. Press the LOCAL button twice to save the alignment value
permanently for the current mode and to move automatically
to the next calibration.
11. Carry out the calibration for the printing modes required.
12. To terminate the calibration, switch off the printer.
NOTE: mode and spacing changes occur automatically.
XZAC4219-05
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Service Manual
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