Ericsson 4900 ユーザーズマニュアル

4. When cleaning is finished and the P power light stops flashing, print 

the nozzle check again to confirm that the head is clean.

For effective cleaning, always run a nozzle check between cycles.

If the pattern is still missing segments or has deflections after a power 
cleaning cycle, turn the printer off and leave it overnight, then clean the 
print head again the following morning with regular cleaning cycles. If 
you still see no improvement, contact your service provider for 
assistance.

Aligning the print head is the most important thing you can do to ensure the 
best print quality. If banding appears on your prints, if they look grainy or 
blurry, or if you see misregistration or “ghosting,” you need to align the print 
head.

Although you can align the print head using the printer utility software, it’s 
also easy to align from the printer’s control panel. This will do the most 
thorough job in the shortest time, and it’s all automatic.

If you haven’t already done so, it’s a good idea to run a nozzle check before 
aligning the print head (page 123). This ensures that the print head 
alignment patterns print correctly.

Follow these steps to align the print head using the control panel:

1. Make sure the printer is turned on, then load paper.

2. Press r 

Menu

.

3. Press u or 

d

 until 

HEAD ALIGNMENT 

is selected, then press r. 

PAPER THICKNESS 

is selected.

4. Press r twice and select the paper type loaded in the printer. Then press 

r

, choose a specific paper, and press 

OK

.

5. Press l three times, then press d to select 

ALIGNMENT

.

6. Press r to select 

AUTO

, then press r again. 

UNI-D 

(uni-directional) is 

highlighted. This is the type of alignment to start with.

Note: You must use at 
least a 10

×

 eye loupe to 

examine the nozzle check 
pattern for deflected 
nozzles. 

Tip: To properly align the 
print head, make sure the 
paper you loaded matches 
the setting on the printer.