Epson Stylus CX8400 Series
Adjusting Print Quality
If the print quality declines, you may need to run a utility to
clean or align the print head. You can use the control panel or
software to run these utilities. See the on-screen User's Guide
for details on using software.
Checking and Cleaning the Print Head
If your printouts become too light, or you see dark or light
bands across them, you may need to clean the print head
nozzles. Cleaning uses ink, so clean the nozzles only if print
quality declines. You can check for clogged nozzles before you
clean them so you don't clean them unnecessarily.
Checking the Print Head Nozzles
1. Load several sheets of letter-size paper (see page 4).
2. Press
.
Setup
3. Select
and press
Maintenance
.
OK
4. Select
and press
Nozzle Check
.
OK
5. Press x
.
Start
6. Check the nozzle check pattern that prints to see if there are
any gaps in the lines.
Nozzles are clean
Nozzles
need cleaning
If there are no gaps, the print head is clean. If there are gaps
or the pattern is faint, clean the print head, as described
below.
Cleaning the Print Head Nozzles
Note:
You cannot clean the print head if an ink cartridge is expended or low.
You must replace the cartridge first (see page 10).
1. Load several sheets of letter-size paper (see page 4).
1. Press
.
Setup
2. Select
and press
Maintenance
.
OK
3. Select
and press
Head Cleaning
.
OK
4. Press x
.
Start
12
Follow any instructions on the LCD display screen during
cleaning, which lasts about 1 minute. When it's finished
you see a message on the screen.
Caution:
Never turn off the CX8400 Series during head cleaning or you
may damage it.
5. Run a nozzle check to verify that the print head is clean
(see the previous section).
Note:
If you don't see any improvement after cleaning the print head
two times, turn off the CX8400 Series and wait at least 6 hours to
let any dried ink soften. Then try printing again.
If you do not use your CX8400 Series often, it is a good idea to
print a few pages at least once a month to maintain good print
quality.
Aligning the Print Head Nozzles
If your printouts become grainy or blurry, or you see dark or
light bands across them, you may need to align the print head.
Note:
Banding may also occur if your print head nozzles need cleaning.
1. Load several sheets of letter-size paper (see page 4).
2. Press
.
Setup
3. Select
Maintenance
.
OK
4. Select
Head Alignment
press
.
OK
5. Press x
.
Start
The alignment sheet prints.
6. Look at pattern #1 and find the patch that is most evenly
printed, with no noticeable streaks or lines.
7. Select the number for that patch, then press
8. Enter the numbers for the other patterns in the same way.
9. When you finish, press
that the alignment is complete.
Note:
y
Do not press the
alignment sheet.
7/07
and press
and
OK
and you see a message indicating
OK
Stop button to cancel printing of the
.
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