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Issue
When the lines on the print results are misaligned, check the items below.
Cause and solution
Check 1: Perform Print Head Alignment
When you see unevenness in the print result such as misalignment, align the print head.
Refer to "Aligning the Print Head" to perform the automatic print head alignment.
If the problem is not solved, perform the manual print head alignment.
Automatic Print Head Alignment
If printed ruled lines are misaligned or print results are otherwise unsatisfactory, adjust the print head position.
Caution
If the remaining ink level is low, the print head alignment sheet will not be printed correctly. Replace the FINE Cartridge whose ink is low.
See "Replacing FINE Cartridges".
You need to prepare: a sheet of A4 or Letter-sized plain paper*
* Be sure to use paper that is white and clean on both sides.
1. Make sure that the power is turned on.
2. Load a sheet of A4 or Letter-sized plain paper in the Rear Tray.
3. Open the Paper Output Tray gently, and open the Output Tray Extension.
4. Print the print head alignment sheet.
(1) Press the 
(2) Press the Black or Color button.
The print head alignment sheet will be printed.
Caution
5. Scan the print head alignment sheet to adjust the print head position.
(1) Load the print head alignment sheet on the Platen Glass.
Load the print head alignment sheet WITH THE PRINTED SIDE FACING DOWN and align the mark 
(2) Close the Document Cover gently, make sure that U (uppercase "U") appears on the LED, then press the Black or Color button.
The machine starts scanning the print head alignment sheet, and the print head position will be adjusted automatically.
When adjusting the print head position is completed, the LED returns to the copy standby mode. Remove the sheet on the Platen Glass.
Caution
- The Platen Glass and the print head alignment sheet are not dirty.
- The print head alignment sheet is placed in the correct position with the printed side facing down.
For details, refer to An Error Code Is Displayed on the LED.
Caution
Manual Print Head Alignment
Print head alignment corrects the installation positions of the print head and improves deviated colors and lines.
This machine supports two head alignment methods: automatic head alignment and manual head alignment.
To perform automatic head alignment,Refer to [ Automatic Print Head Alignment ] within this webpage and then execute the function from the operation panel of the machine.
The procedure for performing manual print head alignment is as follows:
1. Open the printer driver setup window.
2. Click Custom Settings on the Maintenance tab.
The Custom Settings dialog box opens.
3. Switch head alignment to manual.
Check the Align heads manually check box.
4. Transmit the settings.
Click Send, and click OK when the confirmation message appears.
5. Click Print Head Alignment on the Maintenance tab.
The Start Print Head Alignment dialog box opens.
6. Load paper in the machine.
Load three sheets of A4 size or Letter size plain paper into the rear tray.
7. Execute head alignment.
Make sure that the machine is on and click Align Print Head.
Follow the instruction in the message.
8. Check the printed pattern.
Enter the numbers of the patterns with the least amount of streaks in the associated boxes.
Clicking the patterns with the least amount of streaks in the preview window, will automatically set their numbers in the associated boxes.
When you have entered all the necessary values, click OK.
Caution
(A) Less noticeable vertical white streaks
(B) More noticeable vertical white streaks
(A) Less noticeable horizontal white streaks
(B) More noticeable horizontal white streaks
9. Confirm the displayed message and click OK.
The second pattern is printed.
Caution
Do not open the Scanning Unit (Cover) while printing is in progress.
10. Check the printed pattern.
Enter the numbers of the patterns with the least amount of streaks in the associated boxes.
Clicking the patterns with the least amount of streaks in the preview window, will automatically set their numbers in the associated boxes.
When you have entered all the necessary values, click OK.
Caution
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical white streaks.
(A) Less noticeable vertical white streaks
(B) More noticeable vertical white streaks
11. Confirm the displayed message and click OK.
The third pattern is printed.
Caution
Do not open the Scanning Unit (Cover) while printing is in progress.
12. Check the printed pattern.
Enter the numbers of the patterns with the least noticeable horizontal stripes in the associated boxes.
Clicking the patterns with the least noticeable horizontal stripes in the preview window, will automatically set their numbers in the associated boxes.
When you have entered all the necessary values, click OK.
Caution
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal white stripes.
(A) Less noticeable horizontal white stripes
(B) More noticeable horizontal white stripes
Caution
To print and check the current setting, open the Start Print Head Alignment dialog box, and click Print Alignment Value.
Cause and solution
Check 2: Upgrade the print quality
1. Open the printer driver setup window.
2. Select Custom for Print Quality on the Main tab, and click Set....
The Custom dialog box opens.
3. Using the slide bar in [Quality], upgrade print quality.
4. Click OK on the Main tab.
Execute printing, and the print results will be output with the quality level you selected.
Caution
Cause and solution
1. Select Quality & Media from the pop-up menu on the Print Dialog.
2. Select Custom for Print Quality.
3. Using the slide bar in [Quality], upgrade print quality.
4. Click Print.
Execute printing, and the print results will be output with the quality level you selected.
Caution