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5. Press ↓ until the message SENSOR TUNE=xxx displays, where xxx can be NO or
YES. If you want to select a value other than the one displayed, press ← or →.
If you set SENSOR TUNE=YES, press ↓. The sensors will be tuned and the
message SENSOR TUNE=NO will display indicating completion.
6. To exit from Power On Configuration, press Menu/Enter. Your new value is
stored in NVM.
Bidirectional Adjustment
This category lets you adjust dot registration and print quality by running the
bidirectional adjustment test pattern. The bidirectional alignment may need periodic
adjustment to maintain print quality.
The test pattern consists of these parts:
v Two groups of Hs (four lines each) with the current alignment value inserted
between them.
v A line of Hs and Is printed on one line.
You can set bidirectional adjustment from -6 to 6 (where each unit is 0.212 mm
[1/120 in.]). The default value is 0.
To change or check the Bidirectional adjustment:
1. Ensure the printer is powered off (O).
2. Press and hold Menu/Enter while powering on (|) the printer. The message
STARTING UP displays.
3. After start-up is complete, release Menu/Enter and the message PRINT OUT=NO
displays.
4. Press ↓ until the message BIDI ADJUST=xx displays, where xx can be -6 to 6.If
you want to select a value other than the one displayed, press ← or →.
Once you change a value, press Online to print the adjustment test pattern.
After the test is completed the forms will advance above the tear bar so you can
view the printed pattern. If the quality is not acceptable, repeat step 4 again to
select another value.
5. Once you have acceptable print quality, press Menu/Enter to exit from the
Power On Configuration menu. Your new value is stored in NVM.
Restore Manufacturing Defaults
Use this category to exit from the Power On Configuration Menu and restore the
factory default values. Your choices are:
v No (default)
v Yes
To Restore Manufacturing Defaults:
1. Ensure the printer is powered off (O).
2. Press and hold Menu/Enter while powering on (|) the printer. The message
STARTING UP displays.
3. After start-up is complete, release Menu/Enter and the message PRINT OUT=NO
displays.
4. Press ↓ until the message RESTORE MFG=xxx displays, where xxx can be NO or
YES.IfNO is selected, you exit from the Power On Configuration Menu and any
104 4247 Printer Model A00 User’s Guide