Epson 3000 Service manual

EPSON

EPSON

EPSON France S.A.

Stylus Color 3000

SERVICE MANUAL

PRODUIT

EPSON

EPSON Stylus COLOR 3000

SERVICE MANUAL

COLOR INK JET PRINTER

SEIKO EPSON CORPORATION

4007664

EPSON® STYLUS COLOR 3000

La Stylus Color 3000 remplace la Stylus Pro XL+ au catalogue EPSON

SUPPORT DE COURS

EPSON France S .A.

STYLUS COLOR 3000

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l Haute qualité d’impression couleur &
monochrome

l Haute résolution :1440 (H) X 720 (V) dpi
l Couleurs :Cyan, Magenta, Jaune, Noir
l Tête d’impression - total de 320 buses

(identiques Stylus color 800/1520)

Tête noire : 128 buses (4 * 32)
Tête couleur : 64 Buses / Couleur (2*32)

(total de 192 buses)

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l Point plus petit pour une meilleure qualité
d’impression

l Haute vitesse d’impression

400 cps en mode LQ
800 cps en mode Draft

l Bac feuille à feuille multi format et haute
capacité (vrai format A2) + Listing + Rouleau

l 2 interfaces en standard et logement pour
interface optionnelle type B

l 4 cartouches indépendantes hautes capacités
type SQ-870 / SQ-1170.

l Base mécanique similaire à Stylus 1500 (avec 4
cartouches de type SQ)

l Méthodes d’impression :Traditionnel et nouveau
Micro wave

DIRECTION TECHNIQUE/FORMATION-INFORMATION 3 22/06/97

interface série Macintosh ( jusqu’à 900 kbps ou

1.8 Mbps (selon Mac))
interface parallèle Bidirectionnelle (IEEE1284)

l Détection des informations papier via le pilote
d’impression (taille, disponibilité..)

l Total de 18 Capteurs.

EPSON France S .A.

STYLUS COLOR 3000

Ink Out

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Echange Cartouche :

Appuyer sur la pause. Changer la cartouche,
appuyer sur pause.

Cleaning :

Les nettoyages sont réalisés si l’on presse les
boutons plus de 3 secondes.

Media Type :

Permet d’indiquer le type de papier présent dans le
bac ou le tracteur

Micro adjust :

Permet de régler les marges hautes et basse (tear
off en mode listing) du papier.

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Pause

5 Sec.

Reset

Operate
Paper Out

Load/Eject

LF/FF

Yellow
Magenta

Cyan
Black

Micro Adjust

Cleaning

3 Sec.

Media Type

Plain Paper
360 dpi Ink Jet Printer
Photo Quality Ink Jet Paper
Photo Quality Glossy Film
Ink Jet Transparencies
Other Media Selection Off

Cleaning

3 Sec.

Pause :

Si le bouton pause est pressé plus de 5 seconde, un reset est effectué (le buffer est vidé)

Les boutons du panneau de contrôle ont les fonctions suivantes lorsqu’ils sont pressés à la mise sous tension de
l’imprimante.

Bouton Fonction
Pause Mode réglage
LF/FF. Auto Test LQ
Load/Eject Auto Test Epreuve
Media type Mode configuration
LF/FF+ Load/Eject Mode Hexadécimal
Pause+ LF/FF+
Micro adjust ¯

Reset EEPROM et timer (Le Reset de la carte mère n’affecte pas les valeurs de réglage, ni la
configuration. Il n’est donc pas nécessaire de régler l’imprimante après un Reset.)

EPSON France S .A.

STYLUS COLOR 3000

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Menu Setting

Print direction Auto / Bi-d / Uni-D
Font Roman / Sans Serif / Courier / Prestige / Script/ Roman T / Sans Serif H / Draft
Pitch 10 cpi / 12 cpi / 15 cpi / 17.1 cpi / 20 cpi / Proportional
I/F mode Auto / Parallel / Mac Serial / Option
Auto I/F wait mode 10 seconds / 30 seconds
Software ESC/P2 / IBM XL24E
Auto CR (mode IBM) On / Off
A.G.M. (mode IBM) On / Off
Character tables Italic, PC 437, PC 850, PC 860, PC 863, PC 865, PC 861, BRASCII, Abicomp, Roman 8, ISO

Latin 1, PC 437 (Greek), PC 853, PC 855, PC 852, PC 857, PC 866, PC 869, MOZOAWIA,

Code MJK, ISO 8559-7, ISO Latin 1T, Bulgaria, PC 774, Estonia, ISO 8859-2, PC 866 LAT,
International character set
for Italic table
Auto line feed On / Off

Italic USA, Italic France, Italic Germany, Italic U.K, Italic Denmark, Italic Sweden, Italic Italy,

Italic Spain 1
Network I/F mode Off: utilisé en environnement normal

On: utilisé en environnement réseau
0 slash 0 / 0 with slash
Page length 11 inch / 12 inch / 8.5 inch / 70/6 inch / other
Skip over perforation On / Off
Auto tear off On / Off
Banner mode On / Off
Parallel I/F transfer rate Fast / Normal

Les paramètres en gras sont les paramètre par défaut de l’imprimante

EPSON France S .A.

STYLUS COLOR 3000

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Status Imprimante

Operate Paper

Allumée ON
Fonction CAP en mode

ON à OFF
Réception de données Clignote
Fin Papier
Bourrage Papier
Pause
Séquence nettoyage
Pas de cartouche
couleur ou fin encre
Niveau encre couleur
faible
Pas de cartouche
couleur ou fin encre
Niveau encre couleur
faible
Erreur levier
Erreur fatale Clignote Clignote Clignote Clignote Clignote Clignote Clignote Clignote
Tampon plein Clignote Clignote Clignote ON ON ON ON Clignote
Reset panneau de
contrôle
Reset EEPROM / Timer Toutes les voyants On pendant 1 seconde

Clignote

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     
      

Clignote

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Out

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      

      

ON

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Pause

Clignote

VOYANTS

Ink Out

Jaune Magenta Cyan Noire

     
     

ON

Toutes les voyants On pendant 1 seconde

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    

La couleur correspondante est allumé

La couleur correspondante est Clignote

Media

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ON

Clignote

Clignote

Type

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EPSON France S .A.

STYLUS COLOR 3000

Méchanisme tracteur poussant

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La mécanique est constituée des têtes
d’impression, du mécanisme avance papier,
du mécanisme chariot, du mécanisme pompe
et du bac feuille à feuille.
La figure ci-contre montre le schéma
fonctionnel de la mécanique. Elle a trois
moteurs: Moteur chariot, Moteur avance papier
et moteur pompe.

Le moteur chariot entraîne le chariot.
Le moteur avance papier :

- Entraîne le papier coupé.

- En fonction de la position du chariot,

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Levier traction/friction

Méchanisme de désengagement

Moteur avance papier

Méchanisme avance papier

Méchanisme
Bac feuille à feuille

Moteur chariot

Chariot

charge une feuille à partir du bac.

- Gère le papier continu, en fonction de la
position du levier Traction/Friction.

Le moteur pompe entraîne la pompe.
Le bac feuille à feuille mesure la taille papier

ainsi la quantité restante. Ces informations
sont restituées par le pilote d’impression.

Tête

Noire

Moteur pompe

Tête

Couleur

Méchanisme Pompe

EPSON France S .A.

STYLUS COLOR 3000

Capteur HP

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Le mécanisme chariot est constitué du
chariot, du moteur chariot, d’une
courroie et du capteur HP (Home
position).

Le capteur HP permet d’initialiser la
position du chariot.

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Poulie

Courroie

Chariot

Moteur Chariot

Poulie

Barre Guide Chariot

EPSON France S .A.

STYLUS COLOR 3000

Pignon transmission

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Le mécanisme avance papier est constitué :

- du moteur avance papier

- du rouleau d’impression (platen)

- de l’unité d’éjection (constituée de deux

rouleaux)

- d’un pignon mobile permettant l’activation

du tracteur poussant (actionné par le levier
traction/friction)

- d’un pignon mobile permettant l’activation

du bac feuille à feuille (actionné par la
position du chariot)

pignon de désemgament du tracteur

Bac feuille à feuille

Vers le tracteur.

Vers le bac papier.

Rouleau d'impression

Rouleau d'éjection

le bac feuille à feuille est géré grâce à un
embrayage activé par le chariot (système
identique aux Stylus 1500 et Color 1520)

Rouleau d'éjection ext

Moteur avance
papier

Unité d'éjection du papier

EPSON France S .A.

STYLUS COLOR 3000

moteur pompe

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Le principe du système d’encre est
identique aux autres imprimantes de la
gamme Stylus. La principale différence est
que les cartouches sont déportées sous le
panneau de contrôle. L’encre est donc
acheminé vers les têtes par quatre tuyaux
(1 par couleur).

La pompe intègre un moteur exclusivement

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Cartouche d'encre

Chariot

Nettoyeur encre pour
les têtes noires et
couleurs

réservé à son usage. Il n’y donc pas de
sélection nécessaire pour activer la pompe.

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Les cartouches d’encre doivent être retirée

(sous tension afin de purger le système

d’encre lorsque l’imprimante sera mise
hors tension) avant tous transport de

l’imprimante.

Les cartouches peut être retirées de
l’imprimante environ 20 fois avant d’être
hors service.

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Valves à
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Pompe 2

Pompe1

Tampon récupération encre usagée

Pompe

EPSON France S .A.

STYLUS COLOR 3000

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La Stylus color 3000 est équipée de 18 capteurs. Leur fonction est indiquée ci-dessous.

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Home position Marge Mécanique gauche
Fin papier arrière
Fin papier Avant
Traction / Friction Position Listing ou friction
Présence cartouche noire Détecte la présence de la cartouche
Présence cartouche Cyan Détecte la présence de la cartouche
Présence cartouche Magenta Détecte la présence de la cartouche
Présence cartouche Jaune Détecte la présence de la cartouche
Fin d’encre noire
Fin d’encre Cyan
Fin d’encre Magenta
Fin d’encre Jaune

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Fin d’encre / le voyant fin d’encre est allumé par ce capteur, Il
clignote grâce aux informations données par le compteur.

Largeur papier bac Potentiomètre \ indique la largeur du papier dans le bac
Longueur Papier bac 3 Switchs mécanique indiquent la longueur du papier dans le bac
Quantité papier Potentiomètre \ indique quantité de papier présente dans le bac
Platen gap Indique l’épaisseur papier (normal / épais)
Largeur papier chariot Optique. Détecte la largeur du papier chargé
Thermistance Indique la température ambiante au niveau de la tête couleur

EPSON France S .A.

STYLUS COLOR 3000

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EPSON France S .A.

STYLUS COLOR 3000

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Distance tête / platen
Destination setting
Ecriture valeur des têtes
Réglage angulaire des têtes d’impression
Alignement bidirectionnel
Ajustement vertical des têtes noire et couleur
Ajustement horizontal des têtes noire et couleur
Réglages gestion papier évoluée

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Réglages

n Tous ces réglages sont nécessaires lorsque l’on change une tête (sauf papier), la carte, la mécanique.
n Pour réaliser ces réglages, il faut utiliser le programme Basic SC3000A.Bas

Pour l’ajustement bidirectionnel et l’ajustement vertical des têtes d’impression, il est conseillé d’utiliser le
pilote d’impression.

EPSON France S .A.

STYLUS COLOR 3000

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þ Programme Gwbasic + SC3000A.bas
þ Une loupe x 10
þ Un PC + Windows + pilote d’impression Stylus Color 3000
þ Jauge quantité papier : 1036794 (ou pile papier de 9mm de haut)
þ Jauge taille A4 IN : 1036795 (ou feuille de dimension A4)
þ Jauge taille A4 OUT : 1036796
þ Jauge taille B4 : 1036797 (ou feuille de dimension 257*364mm )
þ Jauge taille letter : 1036798 (ou feuille de dimension 216*279mm )

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þ Produit de nettoyage (idem gamme précédante)
þ Huile O-8 : 1019753 (toute autre huile peut détériorer les têtes d’impression)

EPSON France S .A.

STYLUS COLOR 3000

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DISTANCE TETE PLATEN

1.26 ± 0.02 mm.

DESTINATION SETTING

Des valeurs de configuration spécifiques à la France (destination setting) sont stockées dans l’EEPROM
de la carte C203 Main. Ces valeurs doivent impérativement être entrées en mémoire avant les réglages.

Avant d’écrire le destination setting, l’imprimante doit être configurée en Interface parallèle ou
automatique.

1. Connecter un PC à l’imprimante avec un câble parallèle et allumer l’imprimante.

2. Exécuter le programme de réglage. Placer du papier 720 dpi dans l’imprimante. Le menu principal du
programme apparaît comme ci-dessous:

<< Market Setting >>
Now :

1.C203001(JPN)

2.C203011(EAI)

3.C203021(EAI LATIN 220V)

4.C203031(EDG)
>5.C203041(EFS)

6.C203051(EIS)

7.C203061(EIB)

8.C203071(EUL)

9.C203081(EUL NORTHEN EUR)
A.C203091(EUL MID.EAST)
B.C203101(EURO)
C.C203111(EAL)
D.C203121(ESP)
E.C203131(ESP THAI)
F.C203141(EHK)
G.C203151(ETT)
H.C203161(RUSSIA)

3. Choisir C203041 EFS, le menu suivant apparaît.

EPSON STYLUS COLOR 3000 Program for production Rev.A
For C203. Market Setting =<041> 05-22-1997
<<< Main >>>

1.Market (041)
>2.Adjustment & Check

3.Sensor Check
E.END

Select.

4. Choisir END.

Select

EPSON France S .A.

STYLUS COLOR 3000

GESTION PAPIER

Grâce à trois capteurs situés dans le bac, la Stylus color 3000
informe l’utilisateur sur la taille papier ainsi que la quantité
restante dans le bac.
Ces informations s’affichent dans le despooler d’impression.

COMPTEUR D’ENCRE

La quantité d’encre restante dans la cartouche est gérée par un
compteur et un capteur. Le compteur, qui informe l’utilisateur du
niveau d’encre de ses cartouches grâce à quatre jauges qui
s’affichent dans le despooler d’impression, est remis à zéro
chaque fois qu’une cartouche est en état fin d’encre . Le capteur
mécanique permet de savoir s’il reste physiquement de l’encre
dans la cartouche (la fin d’encre est générée par le capteur).

CHARGEMENT D’ENCRE INITIAL

Le chargement initial de l’encre est une opération relativement
longue, elle dure jusqu'à 8 minutes.
Ne pas éteindre l’imprimante en cours d'ink charge. A la
prochaine mise sous tension, elle redémarre un nouveau cycle d
chargement d’encre.

EPSON France S .A.

STYLUS COLOR 3000

ECRITURE VALEUR DES TETES

1. Valider le Market setting (voir paragraphe précédent)

2. Choisir 2.ADJUSTMENT & CHECK

EPSON STYLUS COLOR 3000 Program for production Rev.A
For C203. Market Setting =<041> 05-22-1997
<< Adjustment & Check >>

0.Market (041)
>1.VH,EEPROM

2.Angle Adjustment

3.Vertical Adjustment

4.Gap

5.Uni-d

6.Bi-d

7.A4

8.A3
R.Return

Select.

tension tête

3. Choisir 1.VH,EEPROM

< 1.VH,EEPROM >
Bk VH 12513

YMC VH 11315
[ SPACE ] Retry [ 0 ] Quit

[ RETURN ] Initial Charge and Quit [ ESC ] Esc
Select.

4. La valeur de la tête d’impression (5 digits) est indiquée sur le
coté gauche de chaque tête (Une valeur pour la tête noire et une
valeur pour la tête couleur).

L’information peut également être obtenue par l’impression d’une

feuille d’inspection (Option 7 du menu de réglage)

5. Valider l’écriture en appuyant sur la touche 0 pour une écriture des tensions de tête ou sur ENTREE
pour combiner l’écriture avec un Ink Charge.

EPSON France S .A.

STYLUS COLOR 3000

Bouger le levier

Bouger le levier

REGLAGE ANGULAIRE.
Le réglage angulaire a pour fonction d’aligner les têtes d’impression avec l’avance papier (les
buses doivent être perpendiculaires au papier).

Ce réglage est fondamental lors de l’apparition de phénomènes type banding apparition de ligne blanche
ou plus foncées lors de l’impression en mode graphique.

L’angle des têtes est réglé avec les leviers de réglage angulaire.
La figure indique la position des leviers de réglage angulaire.

Le programme imprime une pattern d’ajustement. En se référant à cette pattern, vous pouvez facilement
réaliser le réglage angulaire.

1. Connecter un PC à l’imprimante avec un câble parallèle et allumer l’imprimante.

2. Lancer le programme de réglage. Placer du papier 720 dpi dans l’imprimante. Le menu principal du

programme apparaît . Sélectionner 2.ANGLE ADJUSTMENT Les patterns sont imprimées, incluant les
patterns d’ajustement noire et couleur. Les patterns d’alignement sont représentées ci-dessous:

TETE NOIRE TETE COULEUR

Vers la droite

Correct

Bouger le levier
Vers la gauche

Vers la droite

Bouger le levier
Vers la gauche

Correct

EPSON France S .A.

STYLUS COLOR 3000

Leviers d'ajustement Angulaire

Le message suivant apparaît :

[SPACE] : print again
[Return] : Return to MENU
Appuyer sur Entrée pour sortir du mode de réglage, ou sur espace pour imprimer la pattern de réglage.

Utiliser une loupe afin d’obtenir un réglage optimum.

Très important : Remontage des têtes d’impressions.

La vis montée sur chacune des têtes d’impression n’est pas un système de blocage.
Elle permet d’éviter un mouvement vertical des têtes.

Il est très important de vérifier lors du remontage des têtes, que lorsqu’on actionne le levier de réglage angulaire, la
tête pivote (ne pas trop serrer la vis).

EPSON France S .A.

STYLUS COLOR 3000

vertical des têtes

AJUSTEMENT VERTICAL TETES NOIRE ET COULEUR

Cet ajustement permet d’aligner les têtes noire et couleur (Alignement des buses supérieures.
Ce réglage est nécessaire lorsqu'une des têtes est échangée ou démontée.

1. Choisir l’option VERTICAL ADJUSTMENT du menu

réglage, la Stylus édite la pattern d’ajustement suivante :

Direction
avance papier

Déplacer le levier

vers l'avant

Déplacer le levier

vers l'arrière

Direction
avance papier

2. Vérifier la pattern, si les lignes ne sont pas alignées,
actionner le levier d’ajustement en respectant les
indications données ci-dessus.

Levier d'ajustement

EPSON France S .A.

STYLUS COLOR 3000

AJUSTEMENT HORIZONTAL TETES NOIRE ET COULEUR
AJUSTEMENT BIDIRECTIONNEL

Pour ces deux réglages, vous pouvez utiliser les options HEAD GAP ADJUSTMENT et BI-D

ADJUSTMENT du programme basic (les valeur se change avec les touches ↑ et ↓ du clavier) ou utiliser le

pilote d’impression de la Stylus color 3000. Cette dernière option est conseillée (réglage plus convivial et
plus rapide).

1. Dans le cas du programme basic le réglage est du

même type que sur les produits précédents.

2. Dans le cas du pilote d’impression, sélectionner

l’onglet utilitaire, puis alignement des têtes
d’impressions. Puis suivre les indications du programme.
Voir figure ci-contre.

Cet utilitaire permet également de vérifier le bon
fonctionnement de toutes les buses et éventuellement
de déclencher un nettoyage.
Les nettoyages générés par ce programme sont les
mêmes que ceux générés par une pression sur les
touches cleaning du panneau de contrôle.
Leur efficacité n’est donc pas certaine. Il est conseillé
d'utiliser le cleaning intégré dans le programme basic.

EPSON France S .A.

STYLUS COLOR 3000

CONTENU DE A4 (pattern de test)

Dans le menu réglage sélectionner A4 ou A3 (selon la taille papier), l’imprimante édite le document ci­dessous.

o Ligne 2 & 3 : Tests d’impression
o Ligne 4 : Tests des 128 buses noires et

192 buses couleurs

o Ligne 5 :

Test largeur papier

o Ligne 6 : TITLE

Ligne d’information sur les réglages
actuellement en mémoire dans la carte
mère.

BK= Valeur tête noire. Il faut enlever les
zéros : 01702013 devient 17213

YMC= Valeur tête Couleur. Il faut enlever
les zéros : 01302012 devient 13212

EPSON France S .A.

STYLUS COLOR 3000

q

R

E

G

L

A

G

E

S

&

T

E

S

T

G

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T

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V

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A

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I

E

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E

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Ces réglages permettent de régler les niveau de détection des capteurs de largeur (chariot), taille et quantité (bac) papier
Dans le menu principal, sélectionner 3.Sensor Check,

EPSON STYLUS COLOR 3000 Program for production Rev.A
For C203. Market Setting =<041> 06-04-1997
<<< Main >>>

1.Market (041)

2.Adjustment & Check
>3.Sensor Check
E.END

Select.

1- test du capteur largeur papier chariot
Sélectionner 1.CR-PWS taper Entrée.

Le menu ci-dessous est affiché.

E

A

P

A

P

P

R

I

E

R

I

E

R

< 3.Sensor Check >
>1.CR-PWS

2.ASF-Quantity

3.ASF-Width

4.ASF-Length

5.PG
R.Return

Select.

2 - Réglage de la détection de la quantité de papier présente dans le bac
Sélectionner 2.ASF-Quantity taper Entrée le programme affiche

Remove Paper or Tool [RETURN] enlever le papier du bac et taper Entrée, le programme affiche Set Paper or Tool
[RETURN] installer l’outil Jauge quantité papier (1036794 (ou pile papier de 9mm de haut)) et taper Entrer

5 – Réglage distance Têtes d’impression / platen
Sélectionner 5.PG taper Entrée le programme affiche

Set PG Front. [RETURN], placer le levier épaisseur papier en position 0, taper Entrée, le programme affiche, Set PG Rear.
[RETURN], placer le levier épaisseur papier en position +, taper Entrée, les réglages papiers dont terminés. Sélectionner
R.Return puis quitter le programme de réglage.

EPSON France S .A.

STYLUS COLOR 3000

Guide papier gauche et droite

Outil de détection largeur papier (A4 out)

Guide arriŠre (repli‚)

3 - Réglage de la détection de la largeur du papier présent dans le bac
Sélectionner 3.ASF-Width taper Entrée le programme affiche
Widen ASF to the Maximum. [RETURN] placer les guides gauche et droite du papier de manière à avoir un écart
maximum entre eux et taper Entrée, le programme affiche
Narrow ASF to the Minimum. [RETURN] placer les guides gauche et droite du papier sur l’extrémité droite du bac de
manière à avoir un écart minimum entre eux et taper Entrée, le programme affiche
Adjust to A4 from the Left. [RETURN] placer le guide gauche du papier sur l’extrémité
gauche du bac. Le guide droit doit rester en position. Placer du papier A4 sur le guide
droit et ramener le guide gauche de manière à ce qu’il soit parfaitement en contact avec
le papier et taper Entrée, le programme affiche
Adjust to A4 from the Right. [RETURN] placer L’outil de détection largeur papier (A4
out) par dessus les guides droite et gauche du papier et plaquer le guide gauche sur
l’outil (voir schéma ci-dessous), taper entrer le menu sensor check apparaît.

4 - Réglage de la détection de la longueur du papier présent dans le bac

Respecter la procédure suivante scrupuleusement sinon, l’imprimante peut basculer en mode erreur fatale

Sélectionner 4.ASF-Length taper Entrée le programme affiche

Guide papier gauche et droite

Guide papier gauche et droite

Set Letter. [RETURN], placer la Jauge taille letter (ou feuille
de dimension 216*279mm ) sur le guide papier droit (long côté
du papier vers le guide), puis positionner le guide gauche au
contact de l’outil. Placer le guide papier arrière en position
Haute et placer le en butée sur l’arrière de l’outil (voir schéma
ci-dessous (partie gauche). Taper Entrée le programme affiche
Set B4. [RETURN], placer la Jauge taille B4 (ou feuille de
dimension 257*364mm) sur le guide papier droit (long côté du
papier vers le guide), puis positionner le guide gauche du
contact de l’outil. Placer le guide papier arrière en position
basse et placer le dans sa position de non utilisation (partie
droite). Régler la partie mobile du bac de manière à ce qu’elle
vienne en contact avec l’arrière de l’outil B4. Taper Entrée,

Bac Papier

Guide arriŠre (lev‚)

Papier taille letter ou outil letter

Bac Papier

retirer l’outil B4.

Papier taille B4ou outil B4

NOTICE

All rights reserved. Reproduction of any part of this manual in any form whatsoever



without SEIKO EPSON’s express written permission is forbidden.
The contents of this manual are subjects to change without notice.



All efforts have been made to ensure the accuracy of the contents of this manual.



However, should any errors be detected, SEIKO EPSON would greatly appreciate
being informed of them.
The above notwithstanding SEIKO EPSON can assume no responsibility f or any errors



in this manual or the consequences thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice:

Other product names used herein are for identification purposes only and may be
trademarks or registered trademarks of their respective companies.

Copyright  1997 by SEIKO EPSON CORPORATION
Nagano, Japan

ii

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1) personal injury and 2)
damage to equipment.

WARNING

CAUTION

The precautionary measures itemized below should always be observed when performing
repair/maintenance procedures.

Signals a precaution which, if ignored, could res ult in ser ious or f atal per sonal injury.
Great caution should be exercised in performing procedures preceded by
WARNING Headings.
Signals a precaution which, if ignored, could result in damage to equipment.

WARNING

1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND
PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.

2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH
BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN
THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL. DO NOT
CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE
POWER SUPPLY CABLE MUST BE CO NNECTED, USE EXT REME CAUT ION IN W O RKING
ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

CAUTION

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ON LY BY EPSON CERTIFIED
REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT T HE SOURCE VOLT AGE IS THE SAME AS T HE RATED VOLT AGE,
LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A
PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT
CONNECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT T HE EPSON PRODUCT HAS BEEN DISCO NNECTED FROM THE
POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS
AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE
STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN
ACCESSING INTERNAL COMPONENTS.

5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY
THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER
NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY
APPLICABLE EPSON WARRANTY.

iii

PREFACE

This manual descr ibes functions , theory of electrical and m echanical operations , maintenanc e, and
repair of Stylus COLOR 3000.
The instructions and procedur es included herein are intended for the experience r epair technician,
and attention should be given to the precautions on the preceding page. The Chapters are
organized as follows:

CHAPTER 1. GENERAL DESCRIPTION

Provides a general product overview, lists specifications, and illustrates the main components of the
printer.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of printer operation.

CHAPTER 3. DISASSEMBLY AND ASSEMBLY

Includes a step-by-step guide for product disassembly and assembly.

CHAPTER 4. ADJUSTMENT

Includes a step-by-step guide for adjustment.

CHAPTER 5. TROUBLESHOOTING

Provides EPSON-approved techniques for troubleshooting.

CHAPTER 6. MAINTENANCE

Describes preventive maintenance techniques and lists lubricants and adhesives required to
service the equipment.

APPENDIX

Describes connector pin assignments, circuit diagrams, circuit board component layout and
exploded diagram.

The contents of this manual are subject to change without notice.

iv

REVISION SHEET

Revision Issued Data Contents

Rev. A May 21, 1997 First issue

v

TABLE OF CONTENTS

CHAPTER 1. GENERAL DESCRIPTION
CHAPTER 2. OPERATING PRINCIPLES
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
CHAPTER 4. ADJUSTMENT
CHAPTER 5. TROUBLESHOOTING
CHAPTER 6. MAINTENANCE
APPENDIX

vi

EPSON OVERSEAS MARKETING LOCATIONS

EPSON AMERICA, Inc.

20770 Madrona Avenue,
P.O. Box 2842
Torrance, CA 90509-2842
Phone: [phone]
Fax: [phone]

EPSON UK LTD.

Campus 100, Maylands Avenue,
Hemel Hempstead, Herts, HP2 7TJ
U.K.
Phone: [phone]
Fax: [phone]

EPSON IBERICA, S.A.

Avda. de Roma, 18-26
08290 Cerdanyola del Valles
Balcerona, Spain
Phone: [phone]
Fax: [phone]

EPSON AUSTRALIA PTY. LIMITED

1/70 Gibbes Street,
Chatswood 2067 NSW
Australia
Phone: [phone]
Fax: [phone]

EPSON HONG KONG LTD.

Rooms 4706-10, 47/F
China Resource Bldg.
26 Harbour Road, Wanchai, Hong Kong
Phone: [phone]
Fax: [phone]

EPSON PORTUGAL, S.A.

EPSON DEUTCHLAND GmBH

Zülpicher Straße 6, 4549 Düsseldorf
Germany

Phone: [phone]
Telex: 8584786

EPSON FRANCE S.A.

68 bis, rue Marjolin 92300,
Levallois-Perret
France
Phone: [phone]
Telex: 610657

EPSON ITALIA S.P.A.

V. le F. lli Casiraghi, 427
20099 Sesto S. Giovanni MI
Italy
Phone: [phone]
Fax: [phone]

EPSON SINGAPORE PTE. LTD.

No.1 Temasek Avenue #36-00
Millenia Tower
Singapore 039192
Phone: [phone]
Fax: [phone]

EPSON TAIWAN TECHNOLOGY &
TRADING LTD.

10F, No. 287 Nonking E. Road, Sec. 3,
Taipei, Taiwan, R.O.C.
Phone: [phone]
Fax: [phone]

R. do Progresso, 471, 1° Perafita
4460 Matosinhos, Portugal

Phone: [phone]
Fax: [phone]

SEIKO EPSON CORPORATION
Imaging & Information Products Division

80 Harashinden, Hirooka, Shiojiri-Shi, Nagano-Ken 399-07 JAPAN
Phone: [phone]
Fax: [phone]

As of September, 1996

EPSON

SEIKO EPSON CORPORATION

Chapter 1

Product Descriptions

1.1 Overview................................................................................................................1-1

1.2 Options and Consumables..................................................................................1-2

1.3 Specification.........................................................................................................1-4

1.3.1 Printing Specifications........................................................................................................... 1-4

1.3.2 Control codes ......................................................................................................................... 1-5

1.3.3 Character tables...................................................................................................................... 1-5

1.3.4 Paper Feeding......................................................................................................................... 1-6

1.3.5 Paper Handling .......................................................................................................................1-7

1.3.6 Printable Area ......................................................................................................................... 1-9

1.3.7 Adjust Lever.......................................................................................................................... 1-12

1.3.8 Ink Specification................................................................................................................... 1-13

1.3.9 Input Data Buffer .................................................................................................................. 1-13

1.3.10 Electric Specifications ....................................................................................................... 1-14

1.3.11 Environmental Conditions.................................................................................................1-14

1.3.12 Reliability............................................................................................................................. 1-15

1.3.13 Safety Approvals ................................................................................................................ 1-15

1.3.14 CE Marking.......................................................................................................................... 1-15

1.3.15 Acoustic Noise.................................................................................................................... 1-15

1.3.16 Physical Specification........................................................................................................ 1-15

1.4 Interfaces.............................................................................................................1-16

1.4.1 Parallel Interface................................................................................................................... 1-16

1.4.2 Mac Serial Interface.............................................................................................................. 1-20

1.4.3 Optional Interface................................................................................................................. 1-21

1.4.4 Prevention Hosts from Data Transfer Time-out................................................................. 1-22

1.4.5 Interface Selection................................................................................................................ 1-22

1.4.6 Printer language ................................................................................................................... 1-22

1.5 Operation.............................................................................................................1-23

1.5.1 Control Panel ........................................................................................................................ 1-23

1.5.2 Default Setting ...................................................................................................................... 1-26

1.5.2.1 Setting Method ........................................................................................................ 1-26

1.5.2.2 Setting Menu ........................................................................................................... 1-27

1.5.3 Printer Adjustment Mode..................................................................................................... 1-29

1.5.4 Printer Initialization .............................................................................................................. 1-30

1.5.5 Self-test Printing Mode ........................................................................................................ 1-30

1.5.6 Hexadecimal Dump Function.............................................................................................. 1-30

1.5.7 Monochrome Printing Mode................................................................................................ 1-30

1.5.8 Error Condition..................................................................................................................... 1-31

1.6 Main Components...............................................................................................1-32

1.6.1 C203 MAIN Control Board.................................................................................................... 1-32

1.6.2 C172 PSB/PSE Board........................................................................................................... 1-33

1.6.3 Control Panel ........................................................................................................................ 1-33

1.6.4 Printer Mechanism Unit ....................................................................................................... 1-33

1.6.5 Housing ................................................................................................................................. 1-33

EPSON Stylus COLOR 3000

1.1 Overview

The EPSON Stylus COLOR 3000 is a high-performance color ink jet printer des igned f or the off ic e market
as well as for plotter use with a wide paper availability up to full A2 size. The m ain features of this printer
are:

Paper availability in wide range



A-2 (ANSI C-size) paper supported



Printable area 410 mm (width) (A-2 /ANSI C-size paper)



Left and right margin 5 mm (A2-size paper)

0.5 inch (C-size paper)

Paper handling with ease



Built-in ASF with a wide paper page capability (up to C-size portrait) and high capacity
This ASF holds: 100 cut sheets (55g/m

10 envelops
30 transparency films
70 special paper *(up to A3)
30 special paper *(Super A3 or larger)

∗:360 dpi ink jet paper, photo quality ink jet paper.



Roll paper Fed with a high accuracy making no skew



Push tractor for the office use (for pre-printed continuous paper)

High Speed Printing



LQ mode 400 cps at 10 cpi



Draft mode 800 cps at 10 cpi

2 interfaces built-in and 1 optional interface card



Mac serial interface (up to approximately 900 kbps/1.8 Mbps)



Bi-directional parallel interface (IEEE1284 level 1 device)



Optional Type-B interface card

High print quality for color graphics



High Resolution 1440 (H) X 720 (V) dpi printing



4 color printing Cyan, Magenta, Yellow, Black



Printing Method Traditional and new micro weave printing



Smaller dot diameter for image improvement

4 scalable fonts and 5 LQ fonts



Scalable fonts Roman T, Sans Serif H, Roman, Sans Serif



LQ fonts Roman, Sans Serif, Courier, Prestige, Script (LQ)27

27 usable character tables Italic, PC437, PC850, PC860, PC861, PC863, PC865, BRASCII,

Abicomp, Roman 8, ISO Latin 1, PC437 Greek, PC852, PC853,
PC855,PC857, PC866, PC869, MOZOAWIA, Code MJK, ISO 8559-7,

2

Rev. A

Figure 1-1. Exterior View of the EPSON Stylus COLOR 3000

1-1

Product Descriptions

2

1.2 Options and Consumables

Table 1-1. Options and Consumables

Model Description

Serial Interface Cards

C82305∗/C82306∗
C82307∗/C82308∗

Parallel Interface Cards

C82310∗
C82345∗
C82313∗
C82314∗
C82315∗
C82312∗
C82331∗
C823311 Ethernet interface card (Multi-protocol)
C823401 Ether Talk interface card
C823431 Ethernet interface card (Netware)

Parallel Interface Cables

C83602∗

C83603∗/C83604∗

C83605∗/C83606∗

C81101∗

Ink Cartridges

S020118 Black ink cartridge
S020122 Yellow ink cartridge
S020126 Magenta ink cartridge
S020130 Cyan ink cartridge

EPSON Special Media

S041059 / S041025 EPSON 360 dpi ink jet paper (A4)

S041060 EPSON 360 dpi ink jet paper (Letter)
S041065/S041046 EPSON 360 dpi ink jet paper (A3)
S041066/S041647 EPSON 360 dpi ink jet paper (Super A3/B)

S041078 EPSON 360 dpi ink jet paper (A2)

S041061 / S041026 EPSON photo quality ink jet paper (A4)

S041062 EPSON photo quality ink jet paper (Letter)
S041067/S041048 EPSON photo quality ink jet paper (Legal)
S041068/S041045 EPSON photo quality ink jet paper (A3)
S041070/S041044 EPSON photo quality ink jet paper (B)
S041069/S041043 EPSON photo quality ink jet paper (Super A3/B)

S041079 EPSON photo quality ink jet paper (A2)

S041054 EPSON photo quality ink jet card (A6)

S041121 EPSON photo quality ink jet card (5 X 8 inch)

S041122 EPSON photo quality ink jet card (8 X10 inch)

Serial interface card
32 KB serial interface card

32 KB parallel interface card
32 KB Bi-directional parallel interface card
IEEE-488 interface card
Coax interface card
Twinax interface card
LoacalTalk™ interface card
Ethernet interface card

Parallel interface cable (shielded)
from D-SUB 25-pin (computer) to Amphenol 57 (printer)
Serial interface cable
from D-SUB 25-pin (computer) to D-SUB 25-pin (printer)
Serial interface cable
from D-SUB 9-pin (computer) to D-SUB 25-pin (printer)
Banner paper holder with cutting guide

(Banner Paper Kit)

1-

Rev. A

EPSON Stylus COLOR 3000

3

Table 1-2. Options and Consumables (continued)

Model Description

S041071 EPSON photo quality glossy film (A4)
S041072 EPSON photo quality glossy film (Letter)

S041107 EPSON photo quality glossy film (A6)
S041073 EPSON photo quality glossy film (A3)
S041075 EPSON photo quality glossy film (B)
S041074 EPSON photo quality glossy film (Super A3/B)

S041126 EPSON photo quality glossy paper (A4)

S041124 EPSON photo quality glossy paper (Letter)

S041125 EPSON photo quality glossy paper (A3)

S041123 EPSON photo quality glossy paper (A2)
S041063 EPSON ink jet transparencies (A4)
S041064 EPSON ink jet transparencies (Letter)

S041106 EPSON photo quality self adhesive sheet (A4)

S041103 EPSON 360 dpi ink jet banner paper

S041102 EPSON photo quality banner paper

S041132 EPSON ink jet canvas

S041131 EPSON back light film (A3)

S041130 EPSON back light film (A2)

Note) The asterisk is a substitute for the last digit of the product number.

Rev. A

1-

Product Descriptions

4

1.3 Specification

This section provides detailed information on the EPSON Stylus COLOR 3000.

1.3.1 Printing Specifications

Print method




Nozzle configuration Monochrome 128 nozzles (32 x 4 staggered)

32/360 inch

On demand Ink jet

Color (magenta, cyan, yellow) 64 nozzles (32 x 4 staggered, each

color)

320/360 inch

144/360 inch

#127#128

32/360 inch

#125#126

32/360 inch

144/360 inch

#64

32/360 inch

#63

144/360 inch

#64

32/360 inch

#63

#64

#63

#2 #3#4#1

Black

Paper feed direction

Figure 1-2. Nozzle Configuration



Print direction Bi-directional with logic-seeking
Print speed and printable columns



Table 1-3. Print Speed and Printable Columns for Character Mode

Character Pitch Printable Columns Draft Speed LQ Speed

10 cpi (Pica) 161 800 cps 400 cps
12 cpi (Elite) 193 960 cps 480 cps
15 cpi 242 1200 cps 600 cps

17.1 cpi (Pica condensed) 276 1368 cps 684 cps
20 cpi (Elite condensed) 322 1600 cps 800 cps

Table 1-4. Print Speed and Printable Area for Raster Graphic Mode

Print Mode Printable Area Available Dot CR Speed

180 dpi X 180 dpi 16.37 inch 2947 40 ips
360 dpi X 360 dpi 16.37 inch 5893 20 ips
720 dpi X 720 dpi 16.37 inch 1 1786 20 ips
1440 dpi X 720 dpi *

1

16.37 inch

*1 Printing at 1440 X 720 dpi is available only using driver microweave.
*2 Can be printed by sending following command sequence.

1. Set print speed to 10 ips.

2. Print a 180 X 720 raster image.

3. Advance the paper using an increment of 31/720 inch.

4. Move the print position horizontally using an increment of 1/1440 inch.

5. Print a 180 X 720 raster image.

6. Advance the paper using an increment of 31/720 inch.

7. Repeat steps 2 to 6

.

#2

Cyan

#1

11786*

#2

Magenta

2

#1

#2

Yellow

#1

10 ips

1-

Rev. A

5

1.3.2 Control codes



ESCP/2 and expanded raster graphics code



EPSON Remote command



IBM XL24E emulation

1.3.3 Character tables



Legal and 14 international character sets



Standard version (27 character tables)

Italic table PC 437 (US, Standard Europe)
PC 850 (Multilingual) PC 860 (Portuguese)
PC 861 (IceLandic) PC 863 (Canadian-French)
PC 865 (Nordic) Abicomp
BRASCII Roman 8
ISO Latin 1 PC 437 (Greek)
PC 852 (East Europe) PC 853 (Turkish)
PC 855 (Cyrillic) PC 857 ( Turkish)
PC 866 (Russian) PC 869 (Greek)
MOZOAWIA (Poland) Code MJK (CSFR)
ISO 8559-7 (Latin, Greek) ISO Latin 1T (Turkish)
Bulgaria (Bulgaria) PC 774
Estonia ISO 8859-2 (ISO Latin 2)
PC 866 LAT

EPSON Stylus COLOR 3000



Typeface



Bit map LQ font

EPSON Roman 10 cpi, 12 cpi, 15 cpi, Proportional
EPSON Sans Serif 10 cpi, 12 cpi, 15 cpi, Proportional
EPSON Courier 10 cpi, 12 cpi, 15 cpi,
EPSON Prestige 10 cpi, 12 cpi, 15 cpi,
EPSON Script 10 cpi, 12 cpi, 15 cpi



Scalable font

EPSON Roman 10.5 pt.; 8 pt. − 32 pt. (2 pt. increments)
EPSON Sans Serif 10.5 pt.; 8 pt. − 32 pt. (2 pt. increments)
EPSON Roman T 10.5 pt.; 8 pt. − 32 pt. (2 pt. increments)
EPSON Sans Serif H 10.5 pt.; 8 pt. − 32 pt. (2 pt. increments)

Note) Each typeface has 4 variations:

Normal, Bold, Italic, and Bold Italic

An example of variations for Epson Roman is as follows:

Epson Roman normal
Epsom Roman bold
Epson Roman italic
Epson Roman bold italic

Rev. A

1-

Product Descriptions

6



Combination of character tables and typefaces

Table 1-5. Character Tables and Fonts

Bitmap Fonts Scalable Font s Scal able Fonts

Character Tables

(Standard version)

Italic table
PC 437 (US Standard Europe)
PC 850 (Multilingual)
PC 860 (Portuguese))
PC 861 (Icelandic)
PC 863 (Canadian-French)
PC 865 (Nordic)
BRASCII
Abicomp
Roman 8
ISO Latin 1
PC 437 (Greek)
PC 852 (East Europe)
PC 853 (Turkish)
PC 855 (Cyrillic)
PC 857 (Turkish)
PC 866 (Russian)
PC 869 (Greek)
MAZOWIA (Poland)
Code MJK (CSFR)
ISO 8859-7 (Latin/Greek)
ISO Latin 1T (Turkish)
Bulgaria (Bulgaria)
PC 774
Estonia
ISO 8859-2 (ISO Latin 2)
PC 866 LAT

EPSON Roman
EPSON Sans Serif
EPSON Courier
EPSON Prestige
EPSON Script

Supported Supported Supported

Supported Supported

EPSON Roman
EPSON Sans Serif

EPSON Roman T
EPSON Sans Serif H

Not

Supported

1.3.4 Paper Feeding



Paper transport method Friction feed with built-in auto sheet feeder (ASF)



Line spacing 1/6, 1/8 inch or programmable at 1/360 inch



Paper path



Cut-sheet ASF (Front entry)



Continuous paper Rear tractor



Feeding speed 100 ms per line (1 line = 1/3 inch)

4.0 inches per second

1-

Rev. A

EPSON Stylus COLOR 3000

7

)

)

)

1.3.5 Paper Handling

Cut Sheet



Table 1-6. Cut Sheet Specification

Width Length

Statement 139.7 mm (5.5”) 215.9 mm (8.5”)

A5 148 mm (5.8”) 210 mm (8.3”)
B5 182 mm (7.2”) 257 mm (10.1”)

Executive 184.2 mm (7.3”) 266.7 mm (10.5”)

A4 210 mm (8.3”) 297 mm (11.7”)

Paper Letter 215.9 mm (8.5”) 279.4 mm (11.0”)

Legal 215.4 mm (8.5”) 355.6 mm (14.0”)

B4 257 mm (10.1”) 364 mm (14.3”)

ANSI B 279.4 mm (11”) 431.8 mm (17”)

A3 297 mm (11.7”) 420 mm (16.5”)

A3 wide 329 mm (13.0”) 483 mm (19.0”)

A2 420 mm (16.5”) 594 mm (23.4”)

ANSI C 431.8 mm (17.0”) 558.8 mm (22.0”)

Paper Thickness 0.08 mm (0.0031”) to 0.15 mm (0.0059”

Paper Weight ASF 64 g/ m2 (17 lb.) to 90 g/ m2 (24 lb.)

Manual insertion 52 g/ m2 (14 lb.) to 90 g/ m2 (24 lb.)

Quality Exclusive paper, Bond paper, PPC

Note)

1. Be sure to use the designated face of exclusive paper.

2. Make sure that the paper has no crease, curl, harshness or rip.

3. When placing paper in ASF, be sure not to overload it so that the paper will not dislocate. At manual
insertion, place the paper using the mark on the case for basis and insert it until it meets resistance.

Transparency



Table 1-7. Transparency Specification

Width Length

Size

Paper Thickness 0.075 mm (0.003”) to 0.085 mm (0.0033”

A4 210 mm (8.3”) 297 mm (11.7”)
Letter 215.9 mm (8.5”) 279.4 mm (11.0”)

Note)

1. Transparency printing is only available at normal temperatures.

2. Transparency paper must be printed on the designated side.

Envelope



Table 1-8. Envelope Specification

Width Length

Size No.10 241.3 mm (9 1/2”) 104.8 mm (4 1/8”)

DL 220 mm (8.7”) 110 mm (4.3)
C5 229 mm (9”) 162 mm (6.4”)

Paper Thickness 0.16 mm (0.006”) to 0.52 mm (0.02”
Paper Weight 45 g/m2 (12 lb.) to 90 g/ m2 (24 lb.)

Quality Bond paper, Plain paper, Airmail

Note)

1. Envelope printing is only available at normal temperatures.

2. Place the longer side of the envelope horizontally when setting.

Rev. A

1-

Product Descriptions

8

)

)

)

)

Index Card



Table 1-9. Index Card Specification

Size A6 index card 105 mm (4.1”) (width) 148 mm (5.82”) (length)

Paper Thickness 0.23 mm (0.0091”) or less

Note) Make sure that the paper has no crease, curl, harshness or rip.
Note) Label must be printed at normal room temperature.

Labels (Cut Sheet)



Table 1-10. Label Specification

Width Length

Size A4 210 mm (8.3”) 297 mm (11.7”)

Letter 216 mm (8.5”) 279 mm (11.0”)

Paper Thickness 0.2 mm (0.0079”) or less (including base sheet
Quality Label for page printer

Note) Label must be printed at normal room temperature.
Note) Make sure that the sheet has no crease, curl, harshness or rip.

Continuous Paper



Table 1-11. Continuous Paper Specification

Size Width 101.6 mm (4”) to 406.4 mm (16”)

Folding length 101.6 mm (4”)

Paper Thickness 0.065 mm (0.0026”) to 0.11 mm (0.0043”
Paper Weight 52 g/ m2 (14 lb.) to 82 g/ m2 (22 lb.)

Note) Make sure that the sheet has no crease, curl, harshness or rip.

Labels (Continuous)



Table 1-12. Label (Continuous) Specification

Base sheet Width 101.6 mm (4”) to 406.4 mm (16”)

Size Folding length 101.6 mm (4”)

Label Width 63.5 mm (2.5”)

Length 23.9 mm (0.94”)

Paper Thickness 0.02 mm (0.0079”) or less (including base sheet

0.12 mm (0.0047”) or less (label only)

Quality Plain paper

Note) Label (continuous) must be printed at normal room temperatures.
Note) Make sure that the sheet has no crease, curl, harshness or rip.

Banner



Table 1-13. Banner Specification

Size Width Length

210 mm (8.3) to 432 mm (17.0”) 5.0 m or less (196.9”)

Paper Thickness 0.08 mm (0.0031”) to 0.1 mm (0.0039”
Paper Weight 64 g/m2 (17 lb.) to 82 g/ m2 (22 lb.)

Quality Plain paper

1-

Rev. A

9

1.3.6 Printable Area

Cut Sheet / Label (cut sheet)



EPSON Stylus COLOR 3000

PW

LM RM

TM

Printable Area

PL

BM

Figure 1-3. Printable Area for Cut Sheet

Table 1-14. Minimum Margins for Different Cut Sheet Sizes

Paper width Left margin Right margin Top margin Bottom margin

Up to 420 mm
(16.5”)
420 mm (16.5”)
A3 landscape

3 mm
(0.12 inch)
5 mm
(0.20 inch)

3 mm
(0.12 inch)
5 mm
(0.2 inch)

3 mm
(0.12 inch)
3 mm
(0.12 inch)

14 mm
(0.54 inch)
14 mm

(0.54 inch)
A2
432 mm(17.02)
ANSI B landscape

5 mm
(0.20 inch)

11 mm
(0.43 inch)

3 mm
(0.12 inch)

14 mm

(0.54 inch)
ANSI C

Rev. A

1-

Product Descriptions

0

Envelope



Left Margin

(minimum)

3 mm

(0.12”)

LM

Printable area

Figure 1-4. Printable Area for Envelopes

Table 1-15. Minimum Margin for Envelope

Right Margin

(minimum)

Top Margin

(minimum)

3 mm

(0.12”)

3 mm

(0.12”)

RM

TM

BM

Bottom Margin

(minimum)

14 mm
(0.55”)

1-1

Rev. A

Continuous Paper / Label (Continuous Paper)



EPSON Stylus COLOR 3000

More than

3 mm (0.12 ")

Perforation

Perforation

More than

13 mm (0.51") *1

Printable are 1

Printable area 2

Printable are 1

Printable area 2

Printable area 2

Printable are 1

More than

13 mm (0.51") *1

More than

12.5 mm (0.49")

More than
9 mm (0.35")
More than
9 mm (0.35")

More than
9 mm (0.35")
More than
9 mm (0.35")

Printable area 2

Printable are 1

More than
14 mm (0.55")

Perforation

Printable Area 1: Paper feed pitch is not guaranteed in this area.

Printable Area 2: Paper feed pitch is guaranteed in this area.

Perforation

*1 : When the paper width is more than 406.4 mm (16"), this width is more than
38 mm (1.50").

Figure 1-5. Printable Area for Continuous Paper

Note) Base sheet of label (continuous) is not printing area.

Perforation

More than
134 mm (5.28")

Rev. A

1-1 1

Product Descriptions

2

1.3.7 Adjust Lever

The adjust lever, located at the right and upper side in the printer cover, is used to adjus t the gap between
the paper and platen. The adjust lever must be set to the proper pos ition according to the paper type to
avoid ink smudging caused by ink’s contact with paper.

Table 1-16. Adjust Lever Position

Paper Type Lever Position

Cut sheet
Transparency
Continuous paper
Envelopes
Index card

Far side (0) 0 mm

Near side (1) + 0.7 mm

Platen Gap Adjustment

Value

PG Adjust Lever

Printer Cover

Figure 1-6. Adjust Lever Settings

1-1

Rev. A

EPSON Stylus COLOR 3000

3

1.3.8 Ink Specification

Black ink cartridge

Table 1-17. Black Ink Cartridge Specifications

Black Ink Cartridge

Type Exclusive ink cartridge
Color Black
Print capacity 3800 pages / A4 (ISO/IEC10561 Letter Pattern at 360 dpi)
Ink life 2 years from indicated production date
Storage Temperature

At storage -20 °C to 40 °C (-4 to 104°F)
At packing storage -30 °C to 40 °C (-22 to 104°F)
At transit (Packed) -30 °C to 60 °C (-22 to 140°F)

Dimension 25.1 mm (W) X 139.6 mm (D) X 105.3 mm (H)

(1.22” X5.49” X4.14”)

*1 The cartridge must not be kept at 40 °C (104 °F) for more than a month.
*2 The cartridge must not be kept at 60 °C (140°F) for more than 120 hours.

Note)

1. The cartridge must not be refilled. The ink cartridge is a consumable item.

2. Do not use the cartridge whose ink life has expired.

3. When the ink freezes below -4°C (23°F); it will be usable again after keeping it for more than 3 hours at
room temperature.

* 1

*1
*1*2

Color ink cartridge

Table 1-18. Color Ink Cartridge Specifications

Color Ink Cartridge

Type Exclusive ink cartridge
Color Magenta, Cyan, Yellow
Print capacity 2100 pages A4 (at 360 dpi, 5 % duty each color)
Ink life 2 years from indicated production date
Storage Temperature

At storage -20 °C to 40 °C (-4 to 104°F)
At packing storage -30 °C to 40 °C (-22 to 104°F)
At transit (Packed) -30 °C to 60 °C (-22 to 104°F)

* 1

*1
*1*2

Dimension 25.1 mm (W) X 139.6 mm (D) X 105.3 mm (H)

(0.98”X5.49” X 4.14”)

*1 The cartridge must not be kept at 40 °C (104 °F) for more than a month.
*2 The cartridge must not be kept at 60 °C (140°F) for more than 120 hours.

Note)

1. The cartridge must not be refilled. The ink cartridge is a consumable item.

2. Do not use the cartridge whose ink life has expired.

3. When the ink freezes below -4°C (23°F); it will be usable again after keeping it for more than 3 hours at
room temperature.

1.3.9 Input Data Buffer



Input data buffer :64 Kbytes

Rev. A

1-1

Product Descriptions

4

1.3.10 Electric Specifications

120 V version



Rated voltage AC 120 V



Input voltage range AC 103.5 to 132 V



Rated frequency renege 50 to 60 Hz



Input frequency range 49.5 to 60.5 Hz



Rated current 0.7 A (maximum)



Power consumption Approximately 21 W (ISO/IEC 10561 Letter pattern)

Energy Star program compliant



Insulation resistance 10 M ohms min. (Between AC line and chassis, 500 VDC)



Dielectric strength AC 1,000 V rms. For 1 minute or

AC 1,200 V rms. For 1 second (Between AC line and chassis)

220 - 240V version



Rated voltage AC 220 to 240 V



Input voltage range AC 198 to 264 V



Rated frequency renege 50 to 60 Hz



Input frequency range 49.5 to 60.5 Hz



Rated current 0.4 A (maximum)



Power consumption Approximately 21 W (ISO/IEC 10561 Letter pattern)

Energy Star program compliant



Insulation resistance 10 M ohms min. (Between AC line and chassis, DC 500 V)



Dielectric strength AC 1,500 Vrms. For 1 minute (Between AC line and chassis)

1.3.11 Environmental Conditions



Temperature



Operating*



Non operating*



Humidity



Operating*



Non operating*



Resistance to vibration



Operating 0.15 G



Non-operating*



Resistance to shock



Operating 1 G within 1 ms



Non-operating*

*1 :Refer to the table below for guaranteed range.
*2 :In shipment container.

1

2

10°C to 35°C

-20°C to 60°C
1 month at 40 °C (104 °F)
120 hours at 60 °C (140 °F)

1

20% to 80% RH (without condensation)

2

2

2

Humidity (%)

5% to 85% RH (without condensation)

0.50 G

2 G within 2 ms

90

80

70

60

50

40

30

20

Operating Environment

.

35

10

20

Temperature ( C)

27

30

40

Figure 1-7. Environmental Conditions

1-1

Rev. A

5

1.3.12 Reliability



Total print volume 75,000 pages (A3)



Print head life 2,000 million dots /nozzle

1.3.13 Safety Approvals

120 V version



Safety standards UL1950 with D3

CSA22.2 No. 950 with D3



EMI FCC part15 subpart B class B

CSA C108.8 class B

220 - 240 V version



Safety standards EN 60950 (VDE, NEMKO)



EMI EN 55022 (CISPR Pub.22) class B

AS/NZS 3548 class B

1.3.14 CE Marking

220 - 240 V version



Low Voltage Directive 73/23/EEC EN60950



EMC Directive 89/336/EEC EN55022 class B

EN61000-3-2
EN61000-3-3

EN50082-1
IEC801-2
IEC801-3
IEC801-4

EPSON Stylus COLOR 3000

1.3.15 Acoustic Noise



Noise level Approximately 45 dB (A) (According to ISO 7779)

1.3.16 Physical Specification



Weight 22.5 Kg



Dimension 810 mm (W) X 565 mm (D) X 240 mm (H)

(31.9” X 22.2” X 9.4”)

Refer to Appendix for details.

Rev. A

1-1

Product Descriptions

6

1.4 Interfaces

The EPSON Stylus COLOR 3000 is equipped with the parallel and Mac serial interfaces and a card slot
for an optional Type-B interface. This section provides information on each interface.

1.4.1 Parallel Interface

Forward Channel

Transmission mode




Synchronization By /STROBE pulse
Handshaking




Signal level TTL compatible
Adaptable connector



Table 1-19. Signal level of TTL Compatible (IEEE-1284 level 1 device)

Parameter Minimum Maximum Condition

VOH* - 5.5 V
VOL* -0.5 V ­IOH* - 0.32 mA VOH = 2.4 V
IOL* - 12 mA VOL = 0.4 V
CO - 50 pf
VIH - 2.0 V
VIL 0.8 V ­IIH - 0.32 mA VIH = 2.0 V
IIL - 12 mA VIL = 0.8 V
CI - 50 pf

∗ A LOW logic level on the Logic H signal is as follows:

2.0 V or less when the printer is powered off.

3.0 V or more when the printer is powered on.
The receiver provides an impedance equivalent to 7.5 K ohms to ground.

8 bit parallel, IEEE-1284 compatibility mode

By /BUSY and /ACKNLG signal

57-30360 (Amphenol) or equivalent

The BUSY signal is set HIGH before setting either /ERROR LOW or PE HIGH and held HIGH until all
these signals return to an inactive state. The BUSY signal is HIGH in the following cases:



During data entry.



When the input data buffer is full.



While /INIT signal is at low level or during hardware initialization.



During a printer error condition (See /ERROR signal).



During test printing.



When the printer is in default setting mode.



When the parallel interface is not selected.

The /ERROR signal is LOW when one of the following errors has occurred:



Printer hardware error (fatal error)



Paper-out error



Paper-jam error



Ink-out error

The PE signal is high level during paper-out error.

1-1

Rev. A

EPSON Stylus COLOR 3000

7

DATA

STORBE

0.5 us (min.)

BUSY

ACKNLG

DATA (n)

0.5 us (min.)

0.5 us (min.)

0 (min.)

DATA (n+1)

0 (min.)

0 (min.)

5 us (type.)

Figure 1-8. Data Transmission Timing

Table 1-20. Data Transmission Timing

Parameter Minimum Maximum

tsetup 500 ns ­thold 500 ns ­tstb 500 ns ­tready 0 ­tbusy - 500 ns
tt-out - 120 ns
tt-in - 200 ns
treply - ­tack*** 500 ns 10 us
tnbusy 0 ­tnext 0 -

Note) tt-out shows the rise and fall time of every output signal.

tt-in shows the rise and fall time of every input signal.
Typical time of tack is shown in Table 1-21.

Rev. A

Table 1-21. Typical Time of Tuck

Parallel I/F transfer rate Typical time of tuck

Fast 1us
Normal 3us

1-1

Product Descriptions

8

Table 1-22 shows the connector pin assignment and signals for forward channel of the parallel interface.

Table 1-22. Connector Pin Assignments and Signals (Forward Channel)

Pin No. Signal Nam e

1 /STROBE 19 I

2-9 DATA 0-9 20-27 I

10 /ACKNLG 28 O

11 BUSY 29 O

12 PE 28 O

13 SLCT 28 O
14 /AFXT 30 I Not used.

31 /INIT 30 I

32 /ERROR 29 O
36 /SLIN 30 I Not used.

18 Logic H - O Pulled up to +5V via 3.9 K-ohm resistor.
35 +5V - O Pulled up to +5V via 3.3 K-ohm resistor.
17 Chassis GND - - Chassis ground.

16,33,19-30 GND - - Signal ground.

15,34 NC - - Not connected.

Return

GND Pin

I/O Description

The strobe pulse. Read-in of data is
performed at the falling edge of this pulse.

The data 0 to data 7 signals represent
data bits 0 to 7, respectively. Eac h signal
is at a HIGH level when data is logical 1
and a LOW level when data is logical 0.

This signal is a negative pulse indicating
that the printer can again accept data.

When this signal is at a HIGH level, the
printer is not ready to accept data.

When this signal is at a HIGH level, the
paper empty status is detected.

Always at a HIGH level when the printer is
powered on.

The falling edge of a negative pulse or a
LOW signal on this line caus es the printer
to initialize. Minimum 50 us pulse is
necessary.

When the printer detects an error, this
signal goes LOW.

Note)

1. */* at the beginning of a signal means active low.

2. The I/O column indicates the direction of the signal as viewed form the printer.

1-1

Rev. A

EPSON Stylus COLOR 3000

9

Reverse Channel



Transmission mode IEEE-1284 nibble mode
Adaptable connector




Synchronization Refer to the IEEE-1284 specification
Handshaking




Data transmission timing Refer to the IEEE-1284 specification
Signal level



Table 1-23 shows the connector pin assignment and signals for reverse channel of the parallel interface.

Table 1-23. Connector Pin Assignment and Signals (Reverse Channel)

Same as forward channel

Refer to the IEEE-1284 specification

IEEE-1284 level 1 device
See forward channel.

Pin No. Signal Name

1 HostClk 19 I Clock signal from the host computer.

2-9 DATA 0-7 20-27 I

10 PtrClk 28 O Clock signal from the printer
11

12

13 Xflag/Data bit 1,5 28 O
14 HostBusy 30 I Busy signal from the host computer

31 /INIT 30 I Not used
32

36 1284-Active 30 I 1284 active signal.
18 Logic-H - O Pulled up to +5V via 3.9 K-ohm resistor.
35 +5V - O Pulled up to +5V via 3.3 K-ohm resistor.
17 Chassis GND - - Chassis ground for the printer.

16,33,19-30 GND - - Signalground.

15,34 NC - - Not connected.

PtrBusy /
Data bits 3,7
AckDatareq /

AckData Bits 2,6

/Data Avail /
Data bits 0,4

Return

GND Pin

29 O

28 O

29 O

I/O Description

These signals represent parallel data on
bits 2 to 9. Each signal is High when the
data is logical 1 and LOW when the data
is logical 0.

Busy signal from the printer.
Data bit 3 or 7 in reverse channel.
Acknowledge request signal.
Data bit 2 or 6 in reverse channel.
X flag signal.
Data bit 1 or 5 in reverse channel.

Data available signal.
Data bit 0 or 4 in reverse channel.

Note)

1. */* at the beginning of a signal means active low.

2. The I/O column indicates the direction of the signal as viewed form the printer.

Extensibility Request



The printer responds affirmatively when the extensibility request values are 00H or 04H, as follows:



00H Request Nibble Mode Reverse Channel Transfer .



04H Request Device ID using Nibble Mode Rev Channel Transfer



Device ID

The printer sends following device ID string upon request:



[00H] [xxH]



MFG EPSON;



CMD ESCPL2, PRPXL, BDC;



MDL Stylus [SP]COLOR[SP] 3000;



CLS PRINTER;

Note) [00H] denotes a hexadecimal values of zero.

Rev. A

1-1

Product Descriptions

0

1.4.2 Mac Serial Interface

Standard




Synchronization Synchronous
Bit rate




Word format Start bit 1 bit



Handshaking X-ON/XOFF, DTR protocol
Adaptable connector




Recommended I/F cable Apple System Peripheral-8 cable

Table 1-24. Connector Pin Assignment for Serial Interface

Pin No. Signal Name I/O Function Description

1 SCLK O Synchronous clock
2 CTS I Clear to send
3 TxD- O Transmit data ­4 S.G. I Signal Ground
5 RxD- I Receive data ­6 TxD+ O Balanced Transmit +
7 DTR O Data terminal ready
8 RxD+ I Balanced Receive +

RS-423 compliant

Approximately 900 Kbps, 1.8 Mbps

Data bit 8 bit
Parity bit No parity bit
Stop bit1 bit

8-pin mini circular connector

Table 1-25. X-ON/X-OFF, DTR Protocol

State Buffer space X-ON/X-OFF DTR

Busy Less than 1024 bytes Send X-OFF code Off

Ready More than 2048 bytes Send X-ON code On

8

7

5

2

Figure 1-9.

Serial Interface Connector Pin Assignment

6

34

1

1-2

Rev. A

EPSON Stylus COLOR 3000

1.4.3 Optional Interface

The EPSON Stylus COLOR 3000 supports an optional Type-B interface (Level 2) with the following
characteristics.

Reply message



In case of using Co-ax / Twin-ax I/F card



When ESC/P2 is selected:



Main type MTP48p, PW161cl10cpi, PRG(W0xxxx)rev, AP800ma,



Product name Stylus COLOR 3000



Emulation type ESCPL2-00



Entity type EPSONLQ2



When XL24E is selected:



Main type MTP48p, PW161cl10cpi, PRG(W0xxxx)rev, AP800ma,



Product name Stylus COLOR 3000



Emulation type PRPXL24-00



Entity type EPSONPRPXL24



In case of using an I/F card other than Co-ax / Twin-ax I/F card



When ESC/P2 is selected:



Main type MTP48p, PW161cl10cpi, PRG(W0xxxx)rev, AP800ma, SPD0fast



Product name Stylus COLOR 3000



Emulation type ESCPL2-00



Entity type EPSONLQ2



When XL24E is selected:



Main type MTP48p, PW161cl10cpi, PRG(W0xxxx)rev, AP800ma, SPD0fast



Product name Stylus COLOR 3000



Emulation type PRPXL24-00



Entity type EPSONPRPXL24

Table 1-26.Reply for Option Command

Option command No. command name Reply-A Reply-B

00h No Operation Accept None
01h Start Hard Ware Reset Accept Excute OK
02h Start Soft Ware Reset Reject
03h Send Main System Type Accept
04h Send Name Data Reject
05h Inquire Name Data Accept
06h Send Product Name Accept
07h Send Soft Ware Emulation Type Accept
08h Complete Buffered Data Accept Check Condition

09h Stop Procedure Reject Execute OK
0Ah Return Buffered Data Reject
0Bh Send Entity Type Accept
0Ch Send Status Accept
0Dh Quit Procedure Reject
0Eh Inquire ASCII Message Reject
0Fh Send ASCII Message Accept None

10h - 13h Unknown None

14h Inquire Emergency Message Accept Execute OK

15h Send Emergency message Accept

16h - 1Fh Unknown None
20h - FFh Reserved None

Rev. A

1-21

Product Descriptions

2

Table 1-27. Supported Main Command and Sending Timing

Main Command Command name Sending Timing

01h Start Software Reset

04h Send Name Data
07h Inquire Software Emulation Name
0Eh Inquire ASCII Message
14h Inquire Emergency Reply
15h Send Emergency Message



Emergency Command



0X00 :Get device ID



0X01 :Get all status



Sending BDC-ST through DBIN register

When State-Reply is set “ON” by ST from Type-B I/F, sending BDC-ST through DBIN register is
started. When State-Reply is started, “Start” and “End” of BDC-ST characters are announced by
sending the Main command 0Eh.



/INIT signal on the standard parallel I/F



Type-B I/F option command : 01h



Cold Start



Type-B I/F command : 05h



Changing software Emulation Type



Writing to DBIN register



Reply for Emergency command



Receive Emergency Command

1.4.4 Prevention Hosts from Data Transfer Time-out

Generally, hosts abandon data transfer to peripherals when a peripheral is BUSY continuously for dozens
of seconds. To prevent this kind of time-out, the printer receives data very slowly, several bytes par
minute, even the printer is in a busy state. This slowdown starts when the rem ainder of input buffer dr ops
under several hundreds of bytes. Finally, the printer is BUSY continuously when the input buffer is full.

1.4.5 Interface Selection

The EPSON Stylus COLOR 3000 has three types of interfaces: Parallel, Serial, and optional Type-B. Each
interface can be selected m anually or automatically. Both modes are selected thorough the def ault s etting
mode.



Manual selection

The interface selected through the default setting mode always prints out data from the host.



Automatic selection

Automatic interface selection is enabled in default setting mode. In automatic interface selection
mode, the printer is initialized to the idle state when it is powered on (*1) scanning which interfac e is to
receive data. Then the interface that rec eived data firs t is selec ted. When the hos t s tops data trans fer
and the printer is in the standby state for a number of seconds , the printer returns to the idle state. As
long as the host sends data or the printer interface is busy state, the selected interface is left as it is.

*1 No interface is selected in this state.

Interface State and Interface Selection





When an interface other than the parallel interface is selected, the parallel interface goes into the
BUSY state.



When the interface other than serial interface is selected, the serial interface sets the DTR signal
MARK.



When the printer is initialized and returned to idle state, the parallel interface goes into ready state
and the serial interface sets the DTR signal SPACE.

Note) An interrupt signal such as the INIT on the parallel interface is ignored while that interface is not

selected.

1.4.6 Printer language



ESC/P2



IBM XL24E



EPSON Remote

1-2

Rev. A

EPSON Stylus COLOR 3000

3

1.5 Operation

This section describes the functions of each button on the control panel and LED printer status indicators.

1.5.1 Control Panel

The control panel for this printer consists of 8 non-lock pushbuttons , 1 lock type pushbutton, and 13 LED
printer indicators for easy operation of the various printer functions. Refer to Figure 1-10.

Pause

Reset

5 Sec.

Operate

Paper Out

Ink Out

LF/FF

Load/Eject

Yellow
Magenta

Cyan
Black

Micro Adjust

Figure 1-10. Control Panel Appearance

Cleaning

3 Sec.

Media Type

Plain Paper
360 dpi Ink Jet Printer
Photo Quality Ink Jet Paper
Photo Quality Glossy Film
Ink Jet Transparencies
Other Media Selection Off

Cleaning

3 Sec.

Rev. A

1-2

Product Descriptions

4

Panel Functions (Normal Usage)





Table 1-28. Panel Functions

Button Function

Operate Power On/Off Always
Pause Pause/Non-Pause Always

Pause
(5 seconds)
LF/FF LF/FF Pause/Standby
Load/Eject Load/Eject Pause/Standby

↑
Micro Adjust
Micro Adjust
↓
Cleaning (Black)
(3 seconds)
Cleaning (Color)
(3 seconds)
Media Type Selects paper type. Pause/Standby

Reset Pause/Standby

Micro adjust
(Forward feed)

Micro adjust
(Reverse feed)

Cleaning (Black) Pause/Standby
Cleaning (Color) Pause/Standby

Available

Condition

Pause/Standby See Note below.
Pause/Standby See Note below.

Note) TOF (Top Of Form) adjustment

When ”Micro adjust” is executed for the TOF position, the adjusted TOF position is memorized in
the EEPROM. TOF positions for the ASF, manual insertion and tractor are stored in the
corresponding addresses of EEPROM.

Tear off adjustment

When “Micro adjust” is executed for the tear off position, the adjusted tear off position is
memorized in the EEPROM.

Comment

At turning the printer off, the printer executes
capping function before the power down.

The function will be recognized with this
button held down for more than3 seconds.

The function will be recognized with this
button held down for more than 2 seconds.
The function will be recognized with this
button held down for more than 2 seconds.



Panel Functions with Power On

Table 1-29. Panel Function with Power On

Button Function Comment
Pause Enters the printer adjustment mode. Refer to Section 1.5.3.

LF/FF Enters LQ self-test print mode. Refer to Section 1.5.5.

Load/Eject Enters draft-self test print mode. Refer to Section 1.5.5.

Media type Enters the default setting mode. Refer to Section 1.5.2.

LF/FF

+

Load/Eject

Pause

+

LF/FF

+

Micro adjust ↓

Enters the hex-dump mode. Refer to Section 1.5.6

Performs EEPROM and IC reset. Initializes Timer IC and a part of

the EEPROM.

Note) ”+” means to press one button while holding down the other button(s).

CAUTION



The power switch is connected to the secondary side of the electrical circuit. Since it has a delay
circuit, voltage is still applied for the specified period of time after the printer power is turned off.



As long as the printer is plugged in, voltage is applied to the primary side of the electrical circuit.
Therefore be sure to unplug the printer before servicing or replacing the interface.



When the EEPROM is reset, the waste ink drain pads need replacing. This must be performed by
a qualified service person only. (See Chapter 3.)

1-2

Rev. A

EPSON Stylus COLOR 3000

5



Indicators

This printer has 13 LED printer indicators, as shown in Table 1-30:

Table 1-30. Printer Condition and Printer Status (1)

LED Color Indication Status

Operate Green On Power on

Blinks Capping function in the power off

Paper Out Red On Paper out

Blinks Paper is jamming.

Pause Orange On Pause

Blinks The printer is in the ink sequence.

Ink Out (Yellow) Red On No yellow ink cartridge or ink out

Blinks Ink low

Ink Out (Magenta) Red On No magenta ink cartridge or ink out

Blinks Ink low

Ink Out (Cyan) Red On No cyan ink cartridge or ink out

Blinks Ink low

Ink Out (Black) Red On No black ink cartridge or ink out

Blinks Ink low
Media Type
Media Type

    

Media Type

    

Media Type

   

Media Type

  

Media Type

 !" # $$

 

Note) Refer to T able 1-36 for more detailed conditions.

Green On Plain paper is selected.
Green On 360 dpi Ink Jet Printer is selected.

Green On Photo Quality Ink jet Paper is selected.

Green On Photo Quality Glossy Film is selected.

Green On Ink jet transparencies is selected.

Green On Paper type selection is neglected.

Rev. A

1-2

Product Descriptions

6

1.5.2 Default Setting

Default setting mode enables users to c hange the default settings (initialization values). The set values
are stored in the EEPROM and are not lost after the printer is turned off. To reset the values to the factory
values, perform EEPROM reset operation or use the adjustment program described in Chapter 4.

1.5.2.1 Setting Method

See Figure 1-11 for the default setting method.

Start

Press the "Media Type" button
while turning on the printer.

The printer prints how to select the
language for "Usage of this mode"
and firmware version number.

1.Move through the languages listed
by pressing the "Micro Adjust "
button.

2.Set the language by pressing the
"Pause" button.

The printer prints the current
setting and "Usage of this mode"
in the selected language on the
currently loaded paper.

YES

Change the settings?

NO

Turn the printer off to save the new settings into the EEPROM.

Figure 1-11. Default Setting Flowchart

1. Select the menu by pressing the
"Micro Adjust " button.

2. Select the value for the selected menu
by pressing the "Media Type" button

More change?

NO

YES

CAUTION

Be sure to turn the printer off after the default setting operation is executed, since adjustment



values are not stored in the EEPROM until the printer is turned off.



The latest values set before power-off are stored in the EEPROM.

1-2

Rev. A

7

1.5.2.2 Setting Menu

The printer enters default setting mode when you press the
printer. The menus available are shown Table 1-31.

Table 1-31. Default Setting Menus

Menu

Print direction*

2

Font

Pitch
I/F mode
Auto I/F wait mode
Software
Auto CR (IBM mode only)
A.G.M. (IBM mode only)
Character tables

Standard version

International character set
for Italic table

Auto line feed
Network I/F mode This mode is for network environment.

0 slash
Page length
Skip over perforation
Auto tear off
Banner mode *

3

Parallel I/F transfer rate

Note) 1. Underlined parameters in bold letters are factory default settings.

2. Refer to Table 1-32 and Table 1-33.

3. Refer to Table 1-34.

Auto / Bi-d / Uni-D
Roman / Sans Serif / Courier / Prestige / Script/

Roman T / Sans Serif H / Draft

10 cpi / 12 cpi / 15 cpi / 17.1 cpi / 20 cpi / Proportional
Auto / Parallel / Mac Serial / Option
10 seconds
ESC/P2

/ 30 seconds

/ IBM XL24E

On / Off

Off

On /
Italic
PC 437, PC 850
PC 860, PC 863
PC 865, PC 861
BRASCII, Abicomp
Roman 8, ISO Latin 1
PC 437 (Greek), PC 853
PC 855, PC 852
PC 857, PC 866
PC 869, MOZOAWIA
Code MJK, ISO 8559-7
ISO Latin 1T, Bulgaria
PC 774, Estonia
ISO 8859-2, PC 866 LAT
Italic USA, Italic France
Italic Germany, Italic U.K
Italic Denmark, Italic Sweden
Italic Italy, Italic Spain 1
On / Off

Off: Used in usual environment
On: Used in network environment

0

/ 0 with slash

11 inch

On /

/ 12 inch / 8.5 inch / 70/6 inch / other

Off

On / Off

Off

On /

Fast / Normal

Media Type

Setting *

1

EPSON Stylus COLOR 3000

button while turning on the

Rev. A

1-2

Product Descriptions

8

Auto

Bi-D

Uni-D



Throughput and quality is better.



Throughput is the best.



Print quality may be down.



Throughput is worse.



Print quality is the best.

Table 1-32. Print Direction Mode Characteristics

Black and W hit e Pr inting YMCK Printing (color)



Throughput is better.



Color quality with special paper is
worse.
(Because Color correction depends on
the print direction.)



Throughput is the best.



Color quality with special paper is
worse.
(Because Color correction depends on
the print direction.)



Throughput is worse.



Color quality is the best.

Table 1-33. Printing Direction and ESC U Command

Character Mode

(for DOS)

ESC U 0 Auto Bi-D

Auto ESC U 1 Auto Uni-D

ESC U 2 Auto Auto



ESC U 0 Bi-D Bi-D

Default Bi-D ESC U 1 Uni-D Uni-D

Setting Mode ESC U 2 Auto Auto



ESC U 0 Uni-D Bi-D

Uni-D ESC U 1 Uni-D Uni-D

ESC U 2 Uni-D Auto



*: Printing direction is controlled by driver with Windows/Mac environment.

When the banner m ode is s elected by default setting or rem ote com mand, the f unction is as desc ribed in
Table 1-34.

Table 1-34. Vertical Print Position in the Manual Insertion

Auto Auto

Bi-D Bi-D

Uni-D Uni-D

Raster Graphics Mode

(for Windows / Mac) *

Function

Trigger

Command FF 1. Case that page length is set by

2. Case that page length is not set

ESC EMR No operation No operation

Switch FF Eject Advances to the top-margin position

Eject Eject (maximum 44 inches) Advances to the top-margin position

Data Over the page length

set by command

Over the paper
length

1. Case that page length is set by

2. Case that page length is not set

Eject Eject

Banner mode Off

(manual insertion operation)

ESC (C
→ Eject

by ESC (C
→ Advances to the top-margin

of the next page

ESC (C
→ Eject

by ESC (C
→ No operation

Advances to the top-margin position
of the next page.

of the next page.
of the next page.

No operation

Banner mode On

1-2

Rev. A

9

1.5.3 Printer Adjustment Mode

The EPSON Stylus COLOR 3000 allows users to adjust the following items.

Table 1-35. Printer Adjustment Patterns

Pattern No. Items

1
1
1

2

2

*1 With an increment of 1/1,440 inch
*2 With an increment of 1/720 inch

Adjustment method



Pattern 1 Uni-d adjustment at 400 cps *
Pattern 2 Bi-d adjustment at 400 cps *
Pattern 3 Bi-d adjustment at 200 cps *
Pattern 4 Head gap adjustment between black and color to the cross

feed direction at 200 cps *

Pattern 5 Head gap adjustment between black and color to the cross

feed direction at 100 cps *

Start

EPSON Stylus COLOR 3000

Press the "Pause" button while
turning on the printer.

The printer prints the instruction
sheet on how to select the language.

1.Move through the languages listed
by pressing the "Micro Adjust "
button.

2.Select the language by pressing
the "Pause" button.

The printer prints the instruction
sheet on how to adjust the printer.

Adjust the patterns ?

NO

YES

1. Select the appropriate test by
pressing the "Micro Adjust " button.

2. Press the "Pause" button.

The printer prints the test patterns.

Select the most closely aligned pattern
by pressing the "Media Type" button.

Press the "Pause" button to set the selected
pattern number.

More adjustment ?

NO

Turn the printer off once to save the new settings into the EEPROM.

YES

Figure 1-12. Printer Adjustment Flowchart

Rev. A

1-2

Product Descriptions

0

1.5.4 Printer Initialization

This printer has three initialization types: Power-on initialization, Operator initialization, and Software
initialization.



Power-on Initialization



Triggers Turning on the printer

Cold reset command (Remote RS command)



Actions performed



Initialize the printer mechanism.



Clears input data buffer.



Clears download character set.



Clears print buffer.



Sets default values.

Operator Initialization





Triggers Pressing the Pause button for 3 seconds

The printer recognizes the /INIT signal (negative pulse) of parallel interface.



Actions Performed



Clears input data buffer.



Clears download character set.



Clears print buffer.



Sets default values.

Software Initialization







Trigger ESC @ commend



Actions Performed



Clears print buffer.



Sets default values.

1.5.5 Self-test Printing Mode

This printer has the self-test printing mode to check several printer functions.



Trigger LQ mode: Pressing LF/FF button while turning on the printer

Draft mode: Pressing Load/Eject button while turning on the printer



Items checked



Function of the control circuit board



Function of the printer mechanism



Print quality

1.5.6 Hexadecimal Dump Function

Pressing the LF/FF and Load/Eject buttons while turning on the printer activates the hexadecimal dump
mode. Each line has Hexadecimal codes, along with their corresponding letters printed in the right
column. If a received c ode denotes an unprintable charac ter, a control code such as “.” (period) is pr inted
in the right column. This function enables users to check whether the data from the host is properly
transferred. Turn off the printer to exit the mode.

1.5.7 Monochrome Printing Mode

When the printer is in the ink end (color) condition, the black ink is subs tituted to continue to print. To
switch to monochrom e printing mode, turn off and bac k on the printer. This mode is als o selected by the
command “ESC (K)“. The Color select command “ESC r” is ignored in this mode.

1-3

Rev. A

EPSON Stylus COLOR 3000

1.5.8 Error Condition

When any of the conditions lis ted below is detected, the printer goes into an error s tatus and the /ERRO R
signal goes LOW and the BUSY signal goes HIGH. On this condition, the printer accepts no data and
goes into a pause status automatically.



The CR moves abnormally. (Fatal error)



Paper ends or paper is jamming.



Release lever position is inappropriate for the paper path currently used.



No ink cartridge is installed or ink ends.



Maintenance is required.

Table 1-36. Printer Condition and Panel Status (2)

LED Indicators

Printer Condition

Power on On
Capping function in

the power off
Data exit Blinks
Paper Out
Paper jam
Pause
During ink sequence
No color ink cartridge

or ink out
Ink Low (color)
No black ink c artridge

or ink out
Ink Low (black)
Lever error
Fatal error Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks
Maintenance request Blinks Blinks Blinks On On On On Blinks
Panel reset function On for 1 second only.
Reset EEPROM and

Timer IC



Blinks



 
 

  
  

     
     

      

Note)

1. “” means no effect.

2. To recover from the fatal error, turn off and back on the printer or send the /INIT signal after eliminating
the trigger.

3. Maintenance request occurs when the wasted ink fills to capacity, and servicing is required. To clear
the error status, perform EEPROM reset. (See Table 1-29. Panel Function with Power On, Chapter 2
and Chapter 3.)

4. Refer to Table 1-30 for detailed conditions indicated by the Media type LED indicators.

Paper Pause Ink Out Media

Out

      
      

      

On

Blinks

     
     

On

Blinks

%& "' ( )

    
    

Corresponding color goes on.

Corresponding color blinks.

On

Blinks

On for 1 second only.

Type







Blinks

Rev. A

1-31

Product Descriptions

2

1.6 Main Components

The main components of the EPSON Stylus COLOR 3000 are as follows:



Main control board C203 MAIN



Power supply board C172 PSB/PSE



Control panel bard C203 PNL



Printer mechanism M-4J60



Housing

1.6.1 C203 MAIN Control Board

This board consists of the following:



16-bit CPU (IC5) (clock wave : 19.66Mhz)



Gate arrays B05B33 (IC6), B05B45 (IC16)



PROM (IC13)



CG-ROM (IC11)



DRAM (IC12),



SRAMs (IC14, IC28)



RESET ICs (IC3, IC9)



EEPROM (IC1)



Motor driver ICs (IC17, IC18) for the pump motor and PF motor



Motor driver ICs (IC19, IC20) for CR motor



Head common driver hybrid ICs (IC22, IC23).

PF Motor Driver CR Motor Driver

Pump Motor Driver

Color Head Common Driver

Black Head Driver

CG

Figure 1-13. C203 MAIN Board Component Layout

E05B45 (GA)

DRAM H8/2655 (CPU)

E05B33 (GA)

1-3

Rev. A

EPSON Stylus COLOR 3000

3

1.6.2 C172 PSB/PSE Board

C172 PSB/PSE board, same as for Stylus COLOR 1500, consists of the transformer, switching FET,
regulator IC on the secondary circuit, diode bridge, fuse, and so on.

Fuse

Regulator IC

Transformer

Diode Bridge

Figure 1-14. C172 PSB/PSE Board Component Layout

Switching FET

1.6.3 Control Panel

The control panel for this printer consists of 9 pushbuttons and 13 printer LED indicators.

1.6.4 Printer Mechanism Unit (M-4J60)

The printer mechanism unit for this printer is composed of the CR m otor, PF motor, pump motor, paper
feeding mechanism, and ink system mechanism.

1.6.5 Housing

The housing for this printer consists of the upper housing, lower housing, printer cover, ink cartridge cover,
rear sheet guide, tractor unit, knob, adjust lever and release lever.

Rev. A

1-3

Chapter 2

Operating Principles

2.1 Overview................................................................................................................2-1

2.2 Printer Mechanism Operating Principle .............................................................2-1

2.2.1 Printer Mechanism ................................................................................................................. 2-1

2.2.2 Printing Mechanism ............................................................................................................... 2-2

2.2.2.1 Printhead Structure ................................................................................................... 2-2

2.2.2.2 Printing Process ........................................................................................................2-3

2.2.2.3 Printing Methods........................................................................................................2-3

2.2.3 Carriage (CR) Mechanism...................................................................................................... 2-4

2.2.4 Paper Feed Mechanism..........................................................................................................2-5

2.2.4.1 ASF (Auto Sheet Feeder) Mechanism ......................................................................2-6

2.2.4.2 Tractor Mechanism.................................................................................................... 2-7

2.2.4.3 Manual Feed Mechanism..........................................................................................2-7

2.2.5 Platen Gap (PG) Adjust Mechanism ..................................................................................... 2-8

2.2.6 Ink System............................................................................................................................... 2-9

2.2.6.1 Pump Mechanism.................................................................................................... 2-10

2.2.7 Capping Mechanism............................................................................................................. 2-11

2.2.7.1 Wiping/CR Lock Mechanism................................................................................... 2-12

2.3 Electrical Circuit Operation Principles.............................................................2-13

2.3.1 C172 PSB/PSE Electrical Circuit Board..............................................................................2-13

2.3.2 C203 MAIN Control Board.................................................................................................... 2-15

2.3.2.1 Reset Circuits..........................................................................................................2-17

2.3.2.2 Sensor Circuits........................................................................................................2-17

2.3.2.3 CR Motor Driver Circuits .........................................................................................2-20

2.3.2.4 PF Motor Driver Circuit............................................................................................ 2-21

2.3.2.5 Printhead Driver Circuit ........................................................................................... 2-22

2.4 Ink System Management....................................................................................2-26

2.4.1 Ink System Operations.........................................................................................................2-26

2.4.2 Counters................................................................................................................................ 2-27

EPSON Stylus COLOR 3000

2.1 Overview

This chapter describes the operating principle of the printer mechanism and electrical circuit.

2.2 Printer Mechanism Operating Principle

2.2.1 Printer Mechanism

The printer mechanism of this printer is composed of the printhead unit, paper f eeding mechanism,
(arriage) mechanism and the pump mechanism. The bloc k chart for the printer mechanism is shown in
Figure 2-1. The printer mechanism has 3 motors:  motor, PF (Paper Feed) motor and pump motor.
Tor que from the  motor moves the  in the column direction. PF m otor sends torque to load, f eed and
eject paper. The pump motor drives the pum p mechanism. The r elease lever s witches torque from the PF
motor side to the tractor side to feed continuous paper.

Release Lever



PF Motor

CR Motor

Disengage Mechanism

Black

Printhead

Pump Motor

Color

Printhead

Figure 2-1. Printer Mechanism Block Diagram

Push Tractor Mechanism

Paper Feed Mechanism

ASF Mechanism
(For Cut sheet only.)

CR Unit

Pump Mechanism

Rev. A

2-1

Operating Principles

2

2.2.2 Printing Mechanism

The printing method used for this printer is On-dem and ink jet, sam e as for other EPSON ink jet printer s.
However, use of the new type of printhead improves print quality and speed. The printing m echanism has
2 parts: printhead and ink cartridge which is filled with ink.

2.2.2.1 Printhead Structure

The printhead for this printer has the black and color printheads. The structures of the printheads are
basically the same except for the nozzle configuration. The blac k printhead, us ed for the black ink only, is
composed of 128 nozzles (32 nozzles for each of 4 rows), while the color printhead, composed of 3
printheads for Magenta, Cyan and Yellow, has 64 nozzles (32 nozzl es for each of 2 rows) for each color.

Printhead Driver Circuit Board

Nozzle Plate

To the ink cartridge.

Piezo

Cavity

2-

Nozzle

Figure 2-2. Printhead Structure

Rev. A

EPSON Stylus COLOR 3000

3

2.2.2.2 Printing Process

Steps bellow describe how the ink is ejected from each nozzle with the on-demand ink jet system.

<Step 1> Normal state

No print signal is applied to the PZT (Piezo electric element). In this state, the PZT does not displace and
no pressure is added to the ink inside the c avity. Therefore the pressure in the cavity is kept at a cons tant
level.

<Step 2> Ejecting state

Print signal is applied to a specific nozzle via the head driver circuit to activate the PZT of the nozzle. The
voltage which activates the PZT is produced in the com mon dr iver circuit on the c ontrol board. When the
voltage is applied to the PZT, the PZT displaces and the pressure in the cavity changes. Then the ink
ejects as a result.

Ejecting State

Cavity

Normal State

Piezo

Nozzle

Ejected Ink

Figure 2-3. Printing Operation States

When no m ore print signal is applied to the PZT, the PZT recovers f rom the displaced status. With this
process, the cavity also returns to its normal size, which brings the pressure negative. The negative
pressure in the cavity then absorbs the ink from the cartridge to fill the cavity with the ink again for the next
printing motion. The ink which was not used for printing adheres on the nozzle surface and increases
viscosity in the nozzles, and it causes printing malfunction. Theref ore the ink is per iodically absorbed and
wasted into the waste ink drain pads by the pump mechanism. Ink viscosity varies depending on the
temperatures around the printhead. Since the c hange in the ink viscosity leads to decline in print quality,
the thermistor is attached to the color printhead to keep the drive voltage at a proper level based on the
detected printhead temperature.

2.2.2.3 Printing Methods

EPSON micro dot printing



Both black and color printings can be performed in the normal dot printing mode and EPSON micro
dot printing mode. In the normal dot printing mode, the printer uses less ink to create sharper dots.
Therefore the gradation range is expanded in more delicate tone. This mode is available when the
1440X720-dpi paper or glossy film is selected.

Micro weave printing



In this mode, the printer prints 1 line with multiple passes by using specific nozzles for each pass. The
paper is also fed in smaller increments for this operation. Since this mode eliminates white banding
problem, the graphic images quality is improved. However, decrease in paper feed speed is inevitable.
The Micro Weave printing can be selected through the printer driver.

Rev. A

2-

Operating Principles

4

2.2.3 Carriage () Mechanism

The  mechanism is composed of the  unit, timing belt,  guide shaft, paper eject frame,  (Home
Position) sensor and  motor. The  motor sends torque to the tim ing belt to move the  unit in the

both right and left directions along the paper eject frame and  guide shaft. A stepping motor us ed for
the  motor enables the  unit to move and stop at any position. The  is primarily detected at the
home position by the  sensor when the printer is turned on and its position is then controlled by the
open loop. Table 2-2 and Table 2-3 show the specification for the  motor and the  motor drive term s,
respectively.

Table 2-1.  Motor Specification

Item Description

Motor type 4-phases / 200-pole / Hybrid type stepping motor
Drive voltage
Coil resistance
Excitation mode

Drive frequency 480 to 9600 Hz
Minimum step 0.202 mm (2-2 phase drive)

42 VDC ± 5% (The voltage applied to the driver)
5 Ω ± 7% (at 25° C per 1 phase)



Bipolar drive



2-2 phase, 1-2 phase, 1-2, 21-2 phase, 41-2 phase



Constant current drive

0.106 mm (1-2 phase drive)

0.053 mm (1-2 phase drive)

0.026 mm (21-2 phase drive)

0.013 mm (41-2 phase drive)

Table 2-2. CR Motor Drive Terms

Print

mode

Print speed Acceleration1Acceleration

2

Constant Deceleration1Deceleration

Draft 400 cps 0.91 0.91 0.63 0.91 0.91

LQ 200 cps 0.91 0.91 0.49 0.63 0.63

SLQ 100 cps 0.63 0.63 0.49 0.63 0.63

CR Motor

CR Unit

Timing Belt

Sub Pulley

Pulley

HP Sensor

2

Paper Eject Frame

CR Guide Shaft

Figure 2-4. CR Mechanism

2-

Rev. A

EPSON Stylus COLOR 3000

5

2.2.4 Paper Feed Mechanism

The paper feed mechanism of this printer consists of the integrated ASF (Auto Sheet Feeder) mechanism,
tractor mechanism, PF (Paper Feed) motor, front/rear PE (Paper End) sensors, PF roller, paper guide
mechanism, paper eject unit, and PF motor drive disengage m echanism. The torque fr om the PF motor
drives the paper load mechanism, paper f eed mechanism and paper ej ect mechanism . While the pr inter
is not printing, the PF motor drive disengage mechanism switches the torque sent from the PF motor to
the ASF mechanism, which depends on the  position. W hile the paper feed mechanism is driven, the
torque from the PF m otor is transmitted via PF motor pinion gear and disengage gear to the PF roller,
where the torque splits in 2 directions: one is to the paper ejec t m ec hanism via the gear train in the paper
guide assembly and the other is to the ASF mechanism via the tr ansmission gear. The tractor drive gear
train is set at the left end of the PF roller. Table 2-3 and Table 2-4 shows the specification f or the PF motor
and PF motor drive terms, respectively. Figure 2-5 illustrates the paper feed mechanism.

Table 2-3. PF Motor Specification

Item Description

Motor type 4-phases / 96-pole / Hybrid type stepping motor
Drive voltage
Coil resistance
Connection Bipolar
Excitation mode 2-2 phase, 1-2 phase, W1-2 phase constant current drive
Minimum step 1/720 inch / step (2-2 phase drive)

42 VDC ± 5% (The voltage applied to the driver)
10 Ω ± 10% (at 25° C per 1 phase)

Table 2-4. PF Motor Drive Terms

Operation

mode

Paper feed

   

Acceleration Constant Deceleration Stand-by

0.9/0.9 0.9 0.75/0.75 0.6

ASF Feed 0.9/0.9 0.9 0.75/0.75 0.6
Pump driven
Pump driven

(slow)

 /0.9

 / 

0.9 0.9 0.6

0.9

 / 

0.6

Note) Double 1-2 phase drive / 2-2 phase drive

Tractor Disengage Gear

ASF Transmission Gear

To the tractor mechanism.

To the ASF mechanism.

PF Drive Roller

Paper Eject Roller

Paper Eject Out Roller

PF Motor Pinion Gear

PF Motor

Paper Eject Drive Unit

Figure 2-5. Paper Feeding Mechanism

Rev. A

2-

Operating Principles

6

2.2.4.1 ASF (Auto Sheet Feeder) Mechanism

When the printer is not printing, the  motor drive disengage m echanism switches the torque sent f rom
the PF motor to the LD rollers in the
of the  unit. The  roller shaft has 2 cams on the right and left ends. They push down the paper
support to make the paper surf ace com e in contact with the  rollers. The one way clutch rotates the
roller in the specified direction to load paper. Once the paper is loaded, the torque from the planetary gear
is disengaged and the paper is then transported by the paper feed mechanism.

Cam

Paper Support



mechanism via the planetar y gear based on the detected position

Cam

ASF Mechanism

LD Rollers

Paper

One-way Clutch

ASF Transmission Gear



PF Motor Pinion Gear

PF Drive Roller

Front PE Sensor

PF Motor

Figure 2-6. ASF Mechanism

2-

Rev. A

EPSON Stylus COLOR 3000

7

2.2.4.2 Tractor Mechanism

Tor que sent from the  motor to the  roller is transmitted to the tractor gear via dis engage m echanism
operated with the release lever. When the release lever is set to the tractor side, the release sensor
detects the condition and torque transmission to the ASF mechanism is cut off as a result.

Tractor Gear

Tractor Disengage Gear

PF Motor Pinion Gear

Release Lever

Rear PE Sensor

PF Roller

PF Motor

Figure 2-7. Tractor Mechanism

2.2.4.3 Manual Feed Mechanism

The printer loads cut sheet and roll paper in the r ear paper slot. When the rear  sensor detects the
paper, the  unit leaves the ASF paper feed position. Theref ore the paper is manually loaded even if
paper is set in ASF. This mode allows use of types of paper that differs from the one set in ASF.

Rev. A

2-

Operating Principles

8

2.2.5 Platen Gap () Adjust Mechanism

The  adjust mechanism , located at the top right of the printer cover, allows the user to set the proper
platen gap (distance between paper and nozzle surface) for the paper thicknes s to prevent ink sm udging.
The  adjustment mechanism consists of the  adjust lever,  guide shaft, and parallelism adjust
bushings. Switching the lever from “0” to “ 1” turns the  guide shaft which joins to the lever. Since the
joint for the parallelism adj ust bushing and  guide shaft has an eccentricity toward the guide shaft, the
guide shaft moves from or toward the platen as the lever m oves. With this m ovem ent, the platen gap also
changes from wide to narrow or vice versa.

Table 2-5. Platen Adjust Lever Positions

Paper Type Adjust lever Position PG Adjustment Value

Cut Sheet,

Label, Continuous paper

Envelope ,Card, Index card Front + 0.7 mm

Parallelism Adjust Bushing



Sheet,

0

(Rear)

Rear 0

PG Adjust Lever

+

(Front)

Printhead

Eccentricity

CR Guide Shafts

Figure 2-8. Platen Gap Adjustment Mechanism

Platen Surface

Platen Gap

2-

Rev. A

9

2.2.6 Ink System

The ink system for this printer is composed of the following mechanisms.



Ink cartridge



Pump mechanism



Capping mechanism



Waste ink drain pads



Wiping mechanism

Figure 2-9 shows the block chart of the ink system. flowchart

Ink Cartridges

Cleaner Head for
Black and Color Inks

CR Unit

EPSON Stylus COLOR 3000

Air Valves

Pump 2

Pump 1

Clutch Unit

Combination Gear

Pump Unit

Pump Motor

Gear

Waste Ink Drain Pads

Figure 2-9. Ink System Mechanism

Rev. A

2-

Operating Principles

0

2.2.6.1 Pump Mechanism

The pump mechanism , com posed of the pump m otor and pum p unit, absorbs viscous ink in the printhead
nozzles and drains it to the waste ink drain pad through the cap. Since this printer has only one pum p, it
uses the pump for both black and color inks by alternating the rotational direction of the pump motor.
When the pump m otor rotates forward *
backward rotation *

2

. The pump unit is com posed of the pulley, tube and 2 rollers, as shown in Figure 2-

10. To dr aw ink, the pulley rotates the rollers which squeeze the tube reducing volume as they move to
produce negative pressure. As a result, the ink is vacuum ed and drained into the waste ink drain pads by
the pressure produced through the operation.

*1 The direction in which the paper is fed.
*2 The direction in which the paper is fed back.

Pulley

Ink Draining

1

it absorbs black ink . On the other hand, it absorbs color ink with

Ink Drawing

Ink Drawing

Pump Motor (Backward):Color Ink Drawing

Pulley

No Ink Drawing

No Ink Draining

Pump Motor (Backward):No Black Ink Drawing

Ink Draining

Pump Motor (Forward):Black Ink Drawing

No Ink Draining

No Ink Drawing

Pump Motor (Forward):No Color Ink Drawing

Figure 2-10. Pump Operation

Table 2-6. Pump Motor Specification

Item Description

Motor type 4-phases / 48-pole / PM type stepping motor
Drive voltage
Coil resistance

42 VDC ± 5% (The voltage applied to the driver)

7.7 Ω ± 10% (at 25°C per phase)

Connection Bipolar



Excitation mode

2-2 phase, 1-2 phase, W1-2 phase,



Constant current drive

Drive frequency 281 to 1250 Hz

Drive current

825 mA (at fast absorption)
500 mA (at slow absorption)

2-1

Rev. A

EPSON Stylus COLOR 3000

2.2.7 Capping Mechanism

Ink around head nozzles loses moisture If they are left exposed while the printer is in non-printing or
power off status. Therefore the printheads must be capped to avoid increasing viscosity due to dried
nozzles. The caps are individually equipped for the black and color printhead. W hen the  moves right
from the home position, the c ap holder also shif ts right and strik es the right f ram e. This m otion opens the
air valve and the air in the cap is release. To resume printing, the  moves right from the home pos ition
to strike the right fram e with the cap holder so that the air valve opens . T his operation brings the negative
pressure in the cap back to nor m al and the  goes back to the home pos ition. Since the power s witch of
this printer uses the secondary power-on circuit, the printer power stays on to allow the printer to complete
the capping operation even if the printer is turned off during the operation.

Black Ink Printhead

Cap2

To the waste ink drain pads

Valve Spring

Carriage

Color Ink Printhead

To the waste ink drain pads

Air Valve

Air Tube

Cap Holder

Cap1

Capping Unit Frame

Figure 2-11. Capping Mechanism

Rev. A

2-1 1

Operating Principles

2

2.2.7.1 Wiping/CR Lock Mechanism

The wiping operation removes the ink and dust adhered around the nozzles. This is operated during a
cleaning sequence. W hen the pum p m otor r otates back ward, the torque s ent via the head c leaner ( wiper)
drive gear and the clutch moves the head cleaner to the printhead route. The  unit then begins to move
right and left to wipe the nozzle surface against the head cleaner. When the wiping operation is complete,
the pump motor rotates f orward to move back the head cleaner. Only one cleaner head is used for the
both black and color printheads. The head cleaner also functions as the  lock mechanis m. When the
printer power is off, it keeps the  unit from shif ting left (to the printing side). T he switch lever locks the



at the right end by joining with the disengagement mechanism. With this mechanism, the  unit

remains in the capping position while transported.

CR

Head Cleaner

Head Cleaner Lever

Printhead

Pump Motor

Gear Train

Disengage Mechanism

Figure 2-12. Wiping/Carriage Lock Mechanism

Pump Gear/Clutch

<Wiping Mechanism>

Switch Lever

CR

Head Cleaner Lever

<CR Lock Mechanism>

2-1

Rev. A

EPSON Stylus COLOR 3000

3

2.3 Electrical Circuit Operation Principles

This printer consists of the following circuit board:



C203 MAIN board



C178 PSB/PSE board



C203 Panel board

Head driver circuits are directly attached to the black and color printheads. Figure 2-13 shows the block
diagram of the electrical circuit.

C203 PNL

C172 PSB/PSE

C203 MAIN

+5VDC

+42VDC

Printer Mechanism Unit

CR/PF/Pump
Motors

CR Unit

Color Head
Driver Circuit

Black Head
Driver Circuit

Figure 2-13. Electrical Circuit Block Diagram

2.3.1 C172 PSB/PSE Electrical Circuit Board

The output voltages of the PSB/PSE board are as shown in Table 2- 7. Since the electrical circuit of this
printer is in a secondary circuit, the delay timer can be used to allows the printer to execute the capping
operation after the printer power is turned off. This is to prevent ink clogging or smudging caus ed by the
exposed condition of the printhead.

Table 2-7. DC Voltage Distribution

VDC Application

+42 V

+5 V

 motor/ motor


Printhead common voltage

C

MAIN control board (logic)



Sensors



Control panel, Head nozzle selection

The electrical circuit of this board us es the



(Ringing Choke Converter) switching regulator.  voltage
is first input to the filter circ uit for higher harm onics absorption and is converted into  voltage thorough
the rectifier and smoothing circ uits. The  voltage is then input to the switching circuit. These operations
are followed by the transformer which generates and stabilizes +42
produced +42



is then converted into the stable +5



by the regulator IC. The



in the secondary side. The



on the

 !"#

board monitors the on/off signal from the power switch on the control panel. W hen the power switch is
turned off, the



sends the

 

signal (PSC) to the electrical circuit. The electrical board has a
delay circuit (ZD86, C82 and Q84) to delay the power off. The delay period depends on the electrolytic
capacitor. It continues to output +5 V and +42 V to keep the main circuit switch on the primary side active
until all electric charge is discharged. T he minim um delay period is normally 30 seconds, which ,however,
varies depending on the capacitor size.

Rev. A

2-1

Operating Principles

4

Figure 2-14 illustrates the electrical circuit diagram.

Full Wave
Rectifier
Circuit

Filter

Fuse

AC Input

Primary Circuit

Smoothing
Circuit

Switching
Circuit

(Q1)

Half Wave
Rectifier
Circuit

Photo-coupler
PC1

+42 V

Protection Circuit

(Q81, Q82)

+42 V

Protection Circuit

(ZD52, ZD53, ZD87, Q82, Q83)

+5 V

Protection Circuit

(ZD53, Q82)

Secondary Circuit

+42 V

Line Detector

Circuit

(ZD51, 81 to 86)

Line Over Current

Line Over Voltage

Over Voltage

Chopping
Regulator

(IC51)

+42 V

+5 V

Power Off Delay Circuit

(ZD88, C84, Q84)

Power Off Signal

Figure 2-14. Power Supply Circuit Diagram



+5 VDC line over voltage protection circuit

The output voltage level of the 5 V line is monitored by a Zener diode (ZD53). If the voltage level
exceeds 9 V, the status is fed back to the primary switching circuit through the transistor (Q82) and
photocoupler (PC1) to cut off the +42 V line to the regulator (IC51).



+5 VDC line constant voltage control circuit

Voltage at +5 VDC line is controlled by the regulator IC (IC51). When the abnormal voltage at +5 VDC
line is detected, the status is input to the internal comparator of the regulator to control the voltage.



+42 VDC line over voltage protection circuit

The output level of the +42 VDC line is monitored by the 2 Zener diodes ZD52 and ZD87. When the
output level of the +42 VDC line exceeds +48 V, the switching FET operation on the primary side is
stopped via the thyristor (CY52), transistor (Q81) and photocoupler (PC1).



+42 VDC line constant voltage control circuit

Voltage at the +42 VDC line is monitored by the Zener diodes (ZD51, ZD81−ZD86). This circuit feeds
back the output voltage level status through photocoupler (PC1) to the primary switching circuit to
control the on/off time of the switching FET to constant output voltage level.

+42 VDC line overcurrent protection circuit



The output current is monitored by the transistors Q81 and Q82. When the output current is
abnormally low , the status is assumed to be a short circuit and the information is fed back to the
primary circuit to stop the switching FET operation.

2-1

Rev. A

EPSON Stylus COLOR 3000

5

2.3.2

This printer uses

Table 2- 8 and Figure 2-15 s how the allocated functions for m ajor com ponents and the m ain control circ uit
block diagram, respectively.



MAIN Control Board



MAIN for the main control circuit board. It consists of the following:



16-bit



H8S/2655 (IC5) Runs at 19.66 MHz



2 gate arrays E05B33 (IC6) Manages interfaces, motors and printheads.

E05B45 (IC16)



P-ROM, DRAM and MROM



Drivers Produces common voltage for printheads

Drives motors.

Table 2-8. Location and function of the Major Components

IC Location Function

CPU IC5

Gate Array IC16

IC6

DRAM IC12
SRAM IC14, IC28

C.G. ROM IC11

P-ROM IC13

Optional ROM

EEPROM IC1

Timer counter IC IC2

Reset IC IC9

Common driver IC IC22

Driver IC17

IC7, IC10

IC3

IC23

IC18
IC25

IC19, IC20



16-bit





Runs at 19.66 MHz



Controls the printer at the gate arrays IC5 and IC6
according to the program in P-ROM.



Monitors the printhead temperature.



Controls the I/F for the control panel.



Controls the  motor.



Manages the sensors.



Controls the parallel I/F.



Controls the serial I/F.



Controls Type-$ I/F.



Controls the  motor.



Controls the pump motor.



Controls black and color printheads.



Manages buffers, work area in the



Manages input buffer.



Manages C.G. (Character Generator).



Manages printer control program.



For optional fonts and  (not attached as a
standard item.)



Stores values for the default settings and other
values.



Manages timers for the ink system.



Outputs a reset signal to the logic line (+5).



Outputs a reset signal to the power line (+42).



Produces common voltage for the black printhead.



Produces common voltage for the color printhead.



Drives the  motor.



Drives the pump motor.



D/A converter for  motor control



Drives the  motor.

 %

Rev. A

2-1

Operating Principles

6

Type-B
I/F

PW, PQ, PWS
Sensors

Head
Temperature

+42V

Power Line
Reset IC
M51955BFP
(IC3)

+5V

Logic Line
Reset IC
RST592D
(IC9)

C.G.-ROM

(8M)

(IC11)

P-ROM(8M)
(IC13)

CPU
H8S/2655
(IC5)

+5V

Lithium Battery

EEPROM
AT93C56
(IC1)

+5V

DRAM(16M)
(IC12)

Timer
Counter IC
RTC-4543SA
(IC2)

SRAM(256K)
(IC14)

CLK

SD I/O

SRAM(256K)
(IC28)

GA
E05B45
(IC16)

GA
E05B33
(IC6)

Optional ROM
(IC7, IC10)

Data Bus

Address Bus

CR Motor Control

Control Panel

Sensors

Black/Color Printhead
Control Signals

PF Motor
Control Signal

Pump Motor
Control Signal

Parallel I/F

Serial I/F

+42VDC

+5VDC

PSC

From IC6

From IC6

From IC16

From IC6

From IC6

Carriage

Black/Color Printhead
Common Driver Circuit

Nozzle Selection Signal

Nozzle
Selection IC

Nozzle
Selection IC

CR Motor Driver Circuit
A3953 (IC19, IC20)

PF Motor
Driver Circuit

M

M

CR Motor

PF Motor

UDN2917EB (IC17)

Pump Motor
Driver Circuit

M

Pump Motor

UDN2917EB (IC18)

Figure 2-15. Control Circuit Block Diagram

Black Printhead

128 Nozzles

Color Printhead

64 Nozzles
for each color

2-1

Rev. A

EPSON Stylus COLOR 3000

7

2.3.2.1 Reset Circuits

The



MAIN board contains two reset circuits: for logic line (+5 ) and power line (+42 ). Reset IC
M51955BFP (IC3) monitors the +42  line. It outputs /NMI signal to the
the power line for the motors when the voltage level drops below 33.2 . Reset IC RST592D (IC9)
monitors the +5 V line and sends low pulse when the voltage level drops below 4,2 . While the printer
power is on, it outputs



until stabilized +5  is produced to ensure the

+5V

RST592D

(IC9)

+42V

M51955BFP

(IC3)

VOUT



and the gate array to cut off



’s proper operation.

RESET

GA

E05B45

(IC16)

NC5

OUT

NMI

RES

CPU

H8S/2655

(IC5)

RESET

GA

E05B33

(IC6)

Figure 2-16. Reset Circuit Block Diagram

2.3.2.2 Sensor Circuits



and the gate array E05B45 (IC 16) monitor printer condition refer ring to the signals fr om 13 s ensors

described below



HP : Output from the HP(Home Position) sensor.

The  sensor for this printer uses the reliable photo interrupter system. the signal  is



unit is at the home position, and is



PE_R : Output from the rear PE (Paper End) sensor.

"

when it is not at the home position.

The rear  sensor, attached to the rear part of the paper path, detects paper presence condition for
continuous paper or cut sheet set in the rear paper slot. A mechanical switch is used for this sensor
and the signal



PE_F : Output from the front PE (Paper End) sensor.

&

is

"

with paper detected and



without any paper detected.

The front  sensor, located in the paper guide unit, detects paper presence condition for
sensor uses a mechanical switch and the signal

&

is

"

with paper detected and is

any paper detected.







without

when the

. This



REL : Output from the release sensor.

Release sensor is built into the rear part of the left frame in the printer mechanism. It determines
whether the release lever is set to the cut sheet side (friction mode) or to the continuous paper side
(tractor mode). The signal REL is



when the lever is set to the friction mode and is

"

when the

lever is set to the tractor mode.

CO_B/C/M/Y :Output from each ink cartridge sensor.



The ink cartridge sensor for each color is individually attached to the ink cartridge holder in the printer
mechanism. It determines whether the corresponding ink cartridges is installed or not. A mechanical
switch is used for this sensor and the signals



when the cartridge is not installed. When the sensor detects no cartridge condition, the ink

&$!'

is



when the cartridge is installed and is

consumption counter is reset.

IE_B/C/M/Y : Output from each ink end sensor.



The ink end sensor for each color, individually attached to the ink cartridge holder in the printer
mechanism, detects ink end condition*. It uses the mechanical switch system and the signal
IE_B/C/M/Y is



or

"

on the ink left or end condition, respectively. If the ink end condition is
detected while the ink cartridge is detected by the ink cartridge sensor, the ink consumption counter is
reset.

Note) The ink end sensor detects an ink end condition when the remainder of the ink drops to 5 % of

the capacity.

Rev. A

2-1

Operating Principles

8



Thermistor

Thermistor is attached onto the color printhead to monitor the temperatures around the printhead. It
functions to avoid change in ink viscosity, which affects printing result. The signal output from the
sensor is directly transmitted to the analog port of the



ASF_PW : Output from the ASF PW (Paper Width) sensor.

The ASF  sensor uses a sliding potentionmeter. (The maximum resistance :10kΩ.) It is attached to
the left edge guide in the ASF hopper assembly. By aligning the left edge guide to the paper, the
sensor actuator runs along the grooves at the bottom of the stacker. The length measured by the
actuator is converted into ohms which corresponds to the paper width, then the value is transferred to
the analog port of the
(See Table 2-9.) If the detected paper width does not match the width for the selected page size, the
printer ignores the data which does not fit in the printable area of the paper. In case no change is
detected in paper size by the ASF PW sensor and ASF PL sensor, the CR PW sensor* is not
activated.



. The paper width is detected in 10 ranges between 98 mm and 441 mm.



.

Note) *CR PW sensor: See Page 2-19.

Table 2-9. Paper Width Range

Detecting Range

1
2
3
4
5
6
7
8
9

10



ASF_PL : Output from the PL (Paper Length) sensor.

Paper length is determined by three mechanical switches which detect the paper tray condition based
on the rear edge guide position and paper tray extension position. Each paper size range is detected
by the paper tray condition based on the combination of on/off status of the switches, as shown in
Table 2-10. The paper size is determined and memorized by combining the paper width and paper
length detected by the ASF PW sensor and the PL sensor.

Table 2-10. Paper Length Detecting Range

(Length between right and left edge guides)

98=<=<108.6 / 123.4=<=<141.9

146.7=<=<151.9 / 161.6=<=<187.8

196.6=<=<232.1

231.8=<=<260.6
276=<=<283

293.6=<=<300.6

325.4=<=<332.6

349.6=<=<367.6

416.6=<=<423.1

429.1=<=<441

Paper Width (mm):D

Paper tray condition Corresponding sensor combination

Length Range Rear edge

guide

Up to 158 mm 0 to 22 mm In On On Off
Up to 232 mm Up to 96 mm In On Off Off
Up to 260 mm Up to 125 mm In Off On Off
Up to 283 mm Up to 147 mm In Off Off Off
Up to 302 mm Up to 167 mm In Off On Off

Up to 623 mm Down

2-1

Paper tray

extension

()) *(+ ,*-

+. / ,,%

Switch 1 Switch 2 Switch 3

On On On

Rev. A

EPSON Stylus COLOR 3000

9



ASF_PQ :Output from the PQ (Paper Quantity) sensor.

The paper quantity sensor uses a sliding potentionmeter. (The maximum resistance:10 ohms) The
sensor ,attached to the right edged guide in the hopper assembly, detects the paper quantity between
the maximum of 15 mm and the minimum of 3 mm. The detected quantity is converted into the
corresponding resistance and the information is transferred to the analog port of the
sensor detects the condition of 3.6 mm which accommodates 25 sheets of 55 kg/m
the signal



GAP : Output from the PG (Platen Gap) sensor.



.



. When the

2

-paper, it outputs

The  sensor determines whether the adjust lever is set to the thin paper side or thick paper side.
The signal



is

"

when the lever is on the thick paper side, and



on the thin paper side. This

sensor uses a mechanical switch.



REL : Output from the release sensor.

Release sensor attached to the left and rear side of the printer mechanism determines whether the
release lever is set to friction feed side or tractor side. The signal



on the friction feed side.

CR_PW : Output from the CR PW (Paper Width) sensor.



The

 

sensor, attached to the left side of the  unit, uses a photo interrupt system. While the



is

"

on the tractor side and is

makes 1 return in the paper width seek mode, sensor reads the voltage level of the output signal at
each  motor phase change pulse to determine the positions for the both edges of the paper. This
operation prevents printing on the platen. In case no change is detected in paper size from the
previous paper by the
signal output from this sensor is directly sent to the analog port of the

 

sensor and ASF PL sensor, the

 

sensor is not activated. The



.



Figure 2-21 shows the sensor circuit block diagram.

CPU
H8S/2655
(IC5)

Thermistor

ASF PW
Sensor

Paper Quantity
Sensor

CR PW Sensor

THS

ASF_PW

ASF_PQ

CR_PW

AN0

AN1

AN2

AN3

Data Bus

Address Bus

GA
E05B45
(IC16)

SWC1,3,5

SWC0,2,4

SWC9-11

SWC8

SWA0

SWA1

SWA2

Ink Cartridge Sensor
(B,C,M,Y)

Ink End Sensor
(B,C,M,Y)

Release Sensor

PL Sensor

Rear PE Sensor

Front PE

HP Sensor

Sensor

SWA3

GAP Sensor

Figure 2-17. Sensor Circuit Block Diagram

Rev. A

2-1

Operating Principles

0

2.3.2.3  Motor Driver Circuits

The gate array E05B45 produces the phase data (CRDA0-5) for the CR motor and sends it to 2-channel
D/A converter in parallel data. W hen the phas e-c hange tr igger s ignal (CRT RG ) is s ent f rom the
gate array, the A/B phase-change signal (CRDASEL) is output. T hen the A- phase-data and B-phase-data
are transferred to the channel A and channel B in the D/A converter, respectively. The transferred data f or
2 phases are converted into analog data in the converter to be transferred to the CR motor dr iver ICs
(IC19 and IC20), where the phase excitation current is determ ined for each m icro step of the motor. The
minimum micro step 0.013 mm/step is enabled by 4-phase motor with 4W1-2 phase driven. The gate
array E05B45 (IC16) sends phase data (PHASEA/B, ENAN/ENBN) directly to the CR motor driver ICs
A3953 (IC19 and IC20) to control the excitation mode and rotational direction and amount of the motor.
While the CR is in the home position or the printer is in the ink cartridge replacement mode, the 2-2 phase
is driven in the low current hold mode to hold the m otor. Figure 2-18 s hows the  motor driver c ircuit
block diagram.



to the

CPU

GA
E05B45
(IC16)

CRDALD
CRDASEL

CRTRG

CRDA0-5

PHASEA
ENAN

PHASEB
ENBN

CRV

D/A Converter
(IC25)

RFBA
OUTA
RFBB
OUTB

WR
A/B

DB0-7

CR Motor Driver ICs
A3953 (IC19,20)

PHASEA

ENABLE

REF

PHASEB

ENABLE

REF

Figure 2-18. CR Motor Block Diagram

OUTA

OUTB

OUTA

OUTB

CR Motor

CR A

CR A

CR B

CR B

2-2

Rev. A

EPSON Stylus COLOR 3000

2.3.2.4 PF Motor Driver Circuit

The  motor for this printer operates the following:



Paper loading



Paper feeding

The gate array E05B33 (IC6) outputs the phase drive control signals (PFAPH and PFBPH), phase data
signal (PFA0/1 and PPFB1/0) and voltage reference data (PFV) to the driver IC UDN2917EB (IC17). The
driver IC then controls the phase current based on the voltage refer ence data. T his sequenc e enables the
micro step with a minimum of 1/720 inch at 2-2 phase.

E05B33
(IC6)

PFA0

PFA1

PFB0

PFB1

PFAPH

PFBPH

PFV FREF1/2

Figure 2-19. PF Motor Driver Circuit Block Diagram

UDN2917EB
(IC17)

I10

I11

I20

I21

PH1

PH2

PF Motor

A

A

B

B

PF A

PF_A

PF B

PF_B

Rev. A

2-21

Operating Principles

2

2.3.2.5 Printhead Driver Circuit

This printer has 2 separate printhead driver circuits for the black and color printheads . Eac h cir cuit has the
common voltage driver circuit attached to the circuit control board, and the nozzle selector circuit attached
to the printhead. The each of the black and color common driver circuits is composed of the hybrid IC
H8D2813E (IC22) and the terminal transistor. The black head nozzle selector circuit is com posed of the
128-bit transfer gate array IC IR2C72C, and the color head nozzle selector circuit consis ts of the 128-bit
transfer gate array IC IR2C72C (for cyan and yellow) and 64-bit transfer gate array IC IR2C73C (for
magenta). Printing data is separated into the common voltage signal and the nozzle selection signal at the
gate array E05B33 (IC6) and is then transferred to the corresponding circuit. Figure 2-20 shows the
printhead driver circuit block diagram.

E05B33 (IC6)

BCHG,BKC

BND0/1,BMD0/1

SBDATA

BHCLK
BHLAT

BA/BBHDATA

BHNCHG

VHPR

SCLK,SSTB,SCLR

CCHG,CKC

CND1/2,CMD1/2

SCDATA

CHCLK

CHLAT

YHDATA
CHDATA
MHDATA

CHNCHG

Common Driver

Common Driver

CN13

CN12

IR2C72C

COM

CLK

LAT

SI
NCHG

VHV

IR2C72C

COM

CLK
LAT
S3
S1

NCHG

VHV

IR2C73C

COM

CLK

LAT

S2

VHV

Black Head

Cyan
Yellow

Magenta

C203 MAIN Control Circuit Board Head Boards

Figure 2-20. Prinrhead Driver Circuit Block Diagram

2-2

Rev. A

EPSON Stylus COLOR 3000

3



Common driver circuit for the black printhead

Gate array E05B33 (IC6) sends serial data to the head nozzle selector circuit on the printhead to
select nozzles to be activated. Then the data is transferred to the common driver on the control board
to drive all PZT that correspond to each nozzle. The operating principles for the black printhead is as
follows:



Nozzle selector circuit
Nozzles for the black printhead are divided into 2 rows with 64 nozzles on each, and 2 different
types of nozzle selection signal (BAHDATA and BBHDATA) are sent in serial data to the
corresponding row. Clock signal (BHCLK) is composed of the pulses from #1 to #64. The nozzles
to be activated are determined by the nozzle selection signal synchronized with the clock signal by
the latch signal (BHLAT). However, the pulse number and the selected nozzle number have no
relevance.



Common driver circuit
The common voltage () and the rank value are established to correspond to each of the black
printhead characteristics. This value is stored in advance in the EEPROM when the printer power
is off. At power on, the value is stored in the RAM. The gate array E05B33 (IC6) refers to this
value when transferring the serial data SBDATA to the common driver circuit as the voltage control
signals. The serial data transmission control signals (SCLK, SSTB and SCLR) are used for this
operation. The thermistor controls the common voltage by outputting the signals to compensate
for changes in ink viscosity.

BAHDATA
BBHDATA

BHCLK

BHLAT

BHNCHG

VH

BKC,BCHG

BND0/1
BMD0/1

Figure 2-21. Black Data Transmission Timing

#1

Rank Value*

* Rank Value: The period of time in which the signal COM stays HIGH.
Normal value is approximately 8 ms.

#64

Head Drive Voltage (VH)

Rev. A

2-2

Operating Principles

4



Color printhead nozzle selector circuit

The operating principle for the color printhead is the same as for the black printhead except that color
print is performed with data for 3 different colors: yellow, cyan, and magenta. The operating principle
for the color printhead is as described below:



Nozzle selector circuit
The nozzles for the color printhead are divided into 3: for yellow, cyan, and magenta with 64
nozzles for each of them. The nozzle selection signals for each color (YHDATA for yellow,
MHDATA for magenta and CHDATA for magenta) are sent simultaneously in serial data. The clock
signal (CHCLK) is composed of the pulses from #1 to #64. The nozzle selection signal and the
corresponding clock signal are synchronized by the latch signal (CHLAT) to determine the nozzle
to use. However, the pulse number and the selected nozzle number have no relevance.



Common driver circuit
The common voltage () and the rank value are established to correspond to each of the color
printhead characteristics. This value is stored in advance in the

!

when the printer power is
off. At power on, the value is stored in the RAM. The gate array E05B33 (IC6) refers to this value
and outputs the serial data SCDATA to the common driver circuit as the voltage control signals.
The serial data transmission control signals SCLK, SSTB and SCLR are used for this operation.
The thermistor controls the common voltage by outputting the signals to compensate for changes
in ink viscosity.

YHDATA

CHDATA

MHDATA

CHCLK

CHLAT

CHNCHG

VH

CKC,CCHG

CND0/1
CMD0/1

Figure 2-22. Color Data Transmission Timing

#1

Rank Value*

Rank value: The period of time in which the signal COM stays HIGH.
Normal value is approximately 8 ms.

#64

Head Drive Voltage (VH)

2-2

Rev. A

EPSON Stylus COLOR 3000

5

Special printing

This printer has the following special printing m odes to print various types of graphic im ages. Each m ode
is selected through the printer driver based on the selected type of the paper and print quality.



Double firing normal dot / Single dot printing mode
This printer forms 1 dot with double ink ejection in the ANK or bitmap image mode. In the raster
graphics mode which requires a high-resolution printing, however, forms 1 dot with a single ink
ejection.



EPSON micro dot printing
In this mode, the printer uses less ink to create sharper dots when high-resolution printing is required.

Table 2-11. Special Printing Availability

Paper Type 180 dpi 360 dpi 720 X 360 dpi 720 dpi 1440X720 dpi

Black printing for the raster data

 0 1)(23

4 0 1)(23

OHP sheet
Glossy film

Plain paper






2-dot printing
Normal dot

Color printing for the raster data

 0 1)(23

4 0 1)(23

OHP sheet
Glossy film

Glossy paper

Plain paper







2-dot printing
Normal dot

ANK, Bitmap image data

 0 1)(23

OHP sheet
Plain paper

2-dot printing
Normal dot

2-dot printing
Normal dot

2-dot printing
Normal dot

2-dot printing
Normal dot

2-dot printing
Normal dot

2-dot printing
Normal dot

1-dot printing
Normal dot



1-dot printing
Normal dot

1-dot printing
Normal dot



1-dot printing
Normal dot





1-dot printing
Normal dot

1-dot printing
Normal dot





1-dot printing
Normal dot

1-dot printing
Normal dot
1-dot printing
Normal dot



1-dot printing

# ,-* *+

1-dot printing

# ,-* *+

1-dot printing

# ,-* *+

1-dot printing

# ,-* *+

1-dot printing

# ,-* *+

Rev. A

2-2

Operating Principles

6

2.4 Ink System Management

This section explains how the ink system is controlled to protect the printheads and to ensure high print
quality. The ink system consists of following operations:



Power On



Initialization



Ink Cartridge Replacement



Cleaning



Print Start



Flushing



Waiting



False Absorption



Wiping



Rubbing



Micro Absorption



Carriage Lock

The printer also selects an ink sequence based on the printer condition by referring to the value f or the
timer counter IC that has a back-up lithium battery and timer counter stored in the
has following counters:



Protect Counter A



Ink Consumption Counter



One-time Flag

!

. The printer

2.4.1 Ink System Operations

The ink system operations are as described below.



Power on

Performed when the printer is turned on. It performs a cleaning sequence by referring to the counter
value.



Initialization

Performed when the printer receives the initialization command. The  returns to the home position
and holds during this operation.



Ink Cartridge Replacement

Performed through the control panel operation when the ink cartridge needs replacing. It determines
whether the ink cartridge is installed or not and performs a cleaning sequence if necessary.



Cleaning

Performed to solve decline in print quality caused by the abnormal nozzle status such as nozzle
clogging and inaccurate ink ejection.



Print Start

Performs the cleaning or flushing operation before the printer starts printing after power on.



Flushing

Performed to eject few ink dots during printing to prevent increase in ink viscosity.

Waiting



Performs the flushing operation after the printing operation to avoid nozzle clogging caused by the
viscous ink.

False Absorption



Absorbs the ink inside the cap and eliminates the ink on the nozzle plate after ink is absorbed.

Rubbing



Performed to eliminate the ink and dust that adheres on the nozzle surface. Few dots of ink is
absorbed to moisten the nozzle surface prior to this operation.



Micro Absorption

Performed to eject bubbles formed inside the cavity.



Carriage Lock

Locks the carriage when turning off the printer or no printing is performed for 5 minutes or more with
the printer power on.

2-2

Rev. A

EPSON Stylus COLOR 3000

7

2.4.2 Counters

The EEPROM on the control board stores the values for the following counters to manage the ink system:



Protect Counter A

This counter counts total amount of drained ink. If the counter value exceeds 75,000, the maintenance
error occurs and the current printing job stops as a result. (Refer to Section 1.5.8.) The occurrence of
this error requires

1.5.1 and Chapter 3.) The current value for this counter can be found in the default setting mode.
(Refer to Section 1.5.2.) To reset the counter, perform
operation or the reset operation using the adjusting program.



Black/Color One-time Flag

This flag set in the
charging is normally performed only when the user begins to use a new printer. It is, however,
performed on the condition that the user needs to reinstall the ink cartridge which has been removed
before transporting the printer some distance to avoid ink leakage. The procedure for the initial ink
charge for this occasion is as follows:

1. Turn the printer on and remove the ink cartridges.

2. Turn the printer off, and the printer starts ejecting ink from the printheads and tubes to the
waste ink drain pads.

3. After transportation, install the ink cartridges.

4. Turn the printer on, and the printer enters the initial ink charge mode.

!

!

clear operation and waste ink drain pad replacement. (Refer to Section

!

sets a limit to prevent frequent initial ink charge by users. The initial ink

clear through the control panel



Ink Consumption Counter

This counter accumulates the amount of ink used throughout the printing, cleaning, and flushing
operations after a new cartridge is installed. The value is used to monitor the ink amount remaining in
the ink cartridge. The counter value is reset when the ink cartridge is removed. This counter is
normally reset with an ink low condition detected by the ink end sensor *. Then the Ink End error
occurs when the counter exceeds the specified value.

Note) The ink end sensor detects an ink end condition when the remainder of the ink drops to 5 % of

the capacity.

CAUTION

Be sure to replace the waste ink drain pads when the



is reset.(Refer to Chapter 3.)

Rev. A

2-2

Chapter 3

Disassembly and Assembly

3.1 Overview................................................................................................................3-1

3.1.1 Precautions for Disassembling the Printer..........................................................................3-1

3.1.2 Tools........................................................................................................................................ 3-2

3.2 Disassembly and Assembly.................................................................................3-3

3.2.1 Upper Housing Removal........................................................................................................ 3-4

3.2.2 ROM Replacement.................................................................................................................. 3-6

3.2.3 CR PW (Paper Width) Sensor Board Assembly Removal................................................... 3-7

3.2.4 Printhead Removal................................................................................................................. 3-8

3.2.5 HP Sensor Removal ............................................................................................................. 3-10

3.2.6 Printer Mechanism Removal ............................................................................................... 3-11

3.2.7 PSB/PSE Board Assembly Removal................................................................................... 3-12

3.2.8 C203 MAIN Board Assembly Removal................................................................................3-13

3.2.9 Main Waste Ink Drain Pad Removal.................................................................................... 3-15

3.2.10 PL (Paper Length) Sensor Removal ................................................................................. 3-16

3.2.11 Printer Mechanism Disassembly.......................................................................................3-17

3.2.11.1 CR Motor Removal................................................................................................3-17

3.2.11.2 Pump Motor Assembly Removal ........................................................................... 3-18

3.2.11.3 PF Motor Assembly Removal................................................................................3-19

3.2.11.4 Front/Rear PE Sensor Removal............................................................................3-20

3.2.11.5 Release Sensor Removal...................................................................................... 3-21

3.2.11.6 Paper Eject Frame Unit Removal..........................................................................3-22

3.2.11.7 Pump Unit Removal...............................................................................................3-23

3.2.11.8 Edge Guide Unit Removal.....................................................................................3-24

3.2.11.9 PQ (Paper Quantity) Sensor Board Assembly Removal ....................................... 3-26

3.2.11.10 ASF PW (Paper Width) Sensor Removal............................................................ 3-27

3.2.11.11 Ink Cartridge Holder Unit Removal...................................................................... 3-28

3.2.11.12 Ink Sensor Assembly Removal............................................................................3-30

3.2.11.13 Ink Cartridge Sensor Assembly Removal............................................................ 3-30

3.2.11.14 CR Unit Removal................................................................................................. 3-31

3.2.11.15 LD shaft Removal................................................................................................3-33

3.2.11.16 PF Roller Removal............................................................................................... 3-36

3.2.11.17 Rear Paper Guide Removal ................................................................................ 3-37

3.2.11.18 Middle Frame Unit Removal................................................................................3-38

EPSON Stylus COLOR 3000

3.1 Overview

This section describes the procedures for disassembling the printer. Unless otherwise specified, no
assembly procedures are included, s ince it is usually performed by reversing the disass embly. Points to
note at disassembling and assem bling is des cribed under the heading
after assembling is described under the heading

3.3.1 before disassembling and assembling. Description in this chapter only refers to disassembly and
assembly procedures for major units. Ther efore, refer to the exploded diagr ams and part list in Appendix
regarding other units.

 

3.1.1 Precautions for Disassembling the Printer

The main control circuit of this printer is equipped with a lithium battery as a back-up battery for the tim er
IC. Mishandling of this battery may lead to a short-circuit. Therefore see CAUTION carefully prior to
disassembly and assembly.

CAUTION



Disconnect the power cable before disassembling or assembling the printer.



Wear goggles to protect your eyes from ink. If ink gets in your eye, flush it with fresh water and see
a doctor immediately.



If ink comes in contact with your skin, wash it off with soap and water. If irritation occurs, contact a
physician.



A lithium battery is installed on the main board of this printer. Be sure to observe the following
instructions when servicing the battery:



Keep the battery away from any metal or other batteries so that electrodes of the opposite polarity
do not come in contact with each other.



Do not heat the battery or put it near fire.



Do not solder on any part of the battery. (Doing so may result in leakage of electrolyte from the
battery, burning, or explosion.)



Do not charge the battery. (An explosive may be generated inside the battery and cause burning or
explosion.)



Do not dismantle the battery. (The gas inside the battery may hurt your throat. Leakage, burning, or
explosion also may result.)



Do not install the battery in the wrong direction. (This may cause burning or explosion.)

 

. Read precautions in Section

. Adjustment required

CAUTION

Danger of explosion if the battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of used batteries according t o
government laws and regulations.

ATTENTION

Risque d’esplosion si la pile est remplacée incorrectment. Ne remplacer que par une pile fu mêmetype
ou d’un type équivalent recommandé par le fabricant. Eliminer les piles déchargées selon lois e t les
règles de sécurité en vigueur.

CAUTION



Never remove the ink cartridge from the carriage unless the manual specifies to do so.



When transporting the printer, be sure to remove ink cartridges before turning off the printer to let
the printer enter the ink ejection mode.



Make sure that no cartridge is installed during transportation. (After transported, the printer
automatically enters initial ink charge mode by turning on the printer after installing the ink
cartridges.



Use only recommended tools for disassembling, assembling, or adjusting the printer.



Apply lubricants and adhesives as specified. (See Chapter 6 for details.)



Make adjustments specified when you disassemble the printer. (See Chapter 4 for details.)

Rev. A

3-1

Disassembly and Assembly

2

3.1.2 Tools

Make sure you use the tools listed in Table 3-1.

Table 3-1. Tools

Tools Distributor Part No.

Philips screwdriver #1 EPSON B743800400
Phillips screwdriver #2 EPSON B743800200
Standard screwdriver EPSON B743000100
Nippers EPSON B740500100
Thickness gauge set EPSON B776702201
Tweezers EPSON B741000100
Paper quantity detective adjusting tool EPSON 103679400
Paper width detective position tool (A4 In
Paper width detective position tool (A4 Out) EPSON 103679600
Paper width detective position tool (B4 In) EPSON 103679900
Paper width detective position tool (B4 Out) EPSON 103680000
Paper width detective position tool (Letter In) EPSON 103680100
Paper width detective position tool (Letter Out) EPSON 103680200
B4 size tool EPSON 103679700
Letter size tool EPSON 103679800



EPSON 103679500

3-

Rev. A

EPSON Stylus COLOR 3000

3

3.2 Disassembly and Assembly

This section describes procedures for disassembling and assembling the major units and parts.

CAUTION

Read CAUTION in Section 3.1.1 prior t o disassem bling t he pr inter.

Start

Upper Case Removal

Printer Mechanism
Removal

Main Board Removal

Printer Mechanism
Disassembly

CR Unit Removal

LD Roller Shaft
Removal

ROM Replacement

Printhead Removal

PSB/PSE Board
Removal

Ink Cartridge Holder
Removal

Ink End Sensor
Removal

HP Sensor Removal

Waste Ink Drain
Pad Removal

PWS Paper Width
Sensor Removal

PL Sensor Removal

Release Sensor
Removal

Front/Rear PE Sensor
Removal

Rev. A

PF Roller Shaft
Removal

Rear Paper Guide
Removal

Middle Frame
Assembly Removal

Cartridge Sensor
Removal

Edge Guide Unit
Removal

Paper Quantity Sensor
Removal

ASF PW Sensor
Removal

Figure 3-1. Printer Disassembly Procedures

PF Motor Removal

CR Motor Removal

Pump Motor Removal

Paper Eject Frame
Removal

Pump Unit Removal

3-

Disassembly and Assembly

4

3.2.1 Upper Housing Removal

1. Remove the knob, tip of the PG adjust lever, rear sheet guide, stacker and paper support.

2. Using tweezers, release the hooks which fixes the tractor unit to the printer mechanism. Then remove
the tractor unit by lifting up the rear part of the tractor unit.

Hook in the Tractor Unit

Tractor Unit

Tweezers

Front

Rear

Figure 3-2. Tractor Unit Removal

3. Open the ink cartridge cover and release the hooks fixing the panel unit to the upper housing by
inserting the tweezers into the cutouts in the illustrated part of the panel unit. Then disconnect the
connector cable for the panel unit from the panel unit and remove the panel unit.

Panel Unit

Upper Housing

Connector Cable for
the Panel Unit

Tweezers

Ink Cartridge Cover

Figure 3-3. Panel Unit Removal

3-

Rev. A

EPSON Stylus COLOR 3000

5

4. Remove 1 screw (CBS, 3X6) under the panel unit and 7 screws (CBP, 3X12) securing the upper
housing to the lower housing.

5. Inserting tweezers from the bottom side of the lower housing, release 2 hook s f ixing the upper hous ing
to the lower housing. Then remove the upper housing by pulling it forward.

WORK POINT

When replacing the upper housing or printer cover, be sure to remove the label such as
CAUTION and put it to the same position on the replaced part.

Gap Adjust Lever

CBP Screw (3x12)

Knob

CBP Screws (3X12)

Tractor Unit

Sheet Guide

Hook

Tweezers

CBS Screw (3X6)

Panel Unit

Upper Housing

Lower Housing

Hook

Figure 3-4. Upper Housing Removal

Rev. A

3-