Checks And Precautions Before Disassembling; Factors Which Affect The Print Quality; How To Place The Ink Tank Assy When Disassembling/Reassembling - Epson ET-4550 Service Manual

P P F F R R o o l l l l e e r r
P P F F D D r r i i v v e e T T r r a a n n s s m m i i s s s s i i o o n n G G e e a a r r
P P l l a a n n e e t t G G e e a a r r A A s s s s y y
P P l l a a n n e e t t R R e e l l e e a a s s e e H H o o l l d d e e r r A A s s s s y y
P P F F M M o o t t o o r r G G e e a a r r s s
P P F F M M o o t t o o r r
F F r r a a m m e e B B a a s s e e A A s s s s y y
I I n n k k S S y y s s t t e e m m
P P i i c c k k u u p p G G e e a a r r
P P i i c c k k u u p p D D r r i i v v e e n n S S h h a a f f t t
S S t t a a c c k k e e r r G G u u i i d d e e L L e e f f t t
S S t t a a c c k k e e r r G G u u i i d d e e R R i i g g h h t t
P P E E S S e e n n s s o o r r
C C a a s s s s e e t t t t e e S S e e n n s s o o r r
P P i i c c k k u u p p L L e e v v e e r r
C C a a s s s s e e t t t t e e L L o o c c k k L L e e v v e e r r / / T T o o r r s s i i o o n n S S p p r r i i n n g g 4 4 2 2 6 6
I I / / F F C C o o v v e e r r
F F A A X X U U n n i i t t
F F A A X X F F i i l l t t e e r r A A s s s s y y * *
F F A A X X F F i i l l t t e e r r B B o o a a r r d d
Note "*": Note "*": The FAX Filter Assy is mounted only on models for some country/region. The FAX Filter Assy is mounted only on models for some country/region.
D D i i s s a a s s s s e e m m b b l l y y / / R R e e a a s s s s e e
E E p p s s o o n n E E T T - - 4 4 5 5 5 5 0 0 , , L L 6 6
2.1.5 2.1.5 Checks and Checks and Precautions before
2.1.5.1 2.1. 5.1 Fact Factors whic ors which Affec

HOW TO PLACE THE INK TANK ASSY WHEN DISASSEMBLING/REASSEMBLING

HOW TO PLACE THE INK TANK ASSY WHEN DISASSEMBLING/REASSEMBLING
The film under sealing film attached on the Ink Supply Tank Assy of this printer is ventilation film. The ink in the The film under sealing film attached on the Ink Supply Tank Assy of this printer is ventilation film. The ink in the
ink tanks is vented to atmosphere through this film to keep ink supply to ink tanks is vented to
with ink, the ink in the tanks is not with ink, the ink in
In order to prevent this from occurring, make sure to place the Ink Supply Tank A In order to prevent this from occurring, make
removing it. removing it.
OK OK
NG NG
m m b b l l y y
5 5 5 5 / / 6 6 5 5 6 6
Precautions before Disassembling
h Affect the Print Qu t the Print Quality
atmosphere through this film to keep ink supply to the Printhead stable. If the film
the tanks is not properly vented and printing may not be capable. properly vented and printing may not be capable.
Ink Supply Tank Assy Ink Supply Tank Assy
Ink Supply Tank Assy Ink Supply Tank Assy
1 1 1 1 : : 5 5 1 1
1 1 2 2 : : 3 3 2 2
1 1 2 2 : : 4 4 4 4
1 1 3 3 : : 0 0 1 1
1 1 1 1 : : 5 5 7 7
1 1 2 2 : : 4 4 7 7
6 6 : : 2 2 1 1
7 7 : : 0 0 0 0
7 7 : : 1 1 0 0
7 7 : : 2 2 1 1
6 6 : : 3 3 2 2
6 6 : : 3 3 2 2
6 6 : : 3 3 9 9
7 7 : : 1 1 8 8
6 6 : : 3 3 3 3
6 6 : : 4 4 2 2
6 6 : : 3 3 8 8
6 6 : : 4 4 9 9
7 7 : : 2 2 0 0
6 6 : : 5 5 3 3
O O v v e e r r v v i i e e w w
Disassembling
ality
sure to place the Ink Supply Tank Assy as shown below
2 2 : : 1 1 5 5
- - - - - -
- - - - - -
- - - - - -
- - - - - -
0 0 : : 2 2 0 0
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
0 0 : : 3 3 1 1
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
the Printhead stable. If the film gets wet
ssy as shown below after
Ventilation Hole Ventilation Hole
1 1 4 4 : : 0 0 6 6
1 1 2 2 : : 3 3 2 2
1 1 2 2 : : 4 4 4 4
1 1 3 3 : : 0 0 1 1
1 1 1 1 : : 5 5 7 7
1 1 3 3 : : 0 0 7 7
6 6 : : 2 2 1 1
7 7 : : 0 0 0 0
7 7 : : 1 1 0 0
7 7 : : 2 2 1 1
6 6 : : 3 3 2 2
6 6 : : 3 3 2 2
7 7 : : 1 1 0 0
7 7 : : 1 1 8 8
6 6 : : 3 3 3 3
6 6 : : 4 4 2 2
6 6 : : 3 3 8 8
6 6 : : 4 4 9 9
7 7 : : 2 2 0 0
6 6 : : 5 5 3 3
2 2 7 7
Confidential Confidential
R R e e v v i i s s i i o o n n B B
gets wet
after