Epson Stylus Pro 3800, Stylus Pro 3800C, Stylus Pro 3850 Service Manual

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SERVICE MANUAL

Large Format Color Inkjet Printer

EPSON Stylus Pro 3800/3800C/3850

SEIJ06007

Notice:

mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

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

 All effort 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 not withstanding SEIKO EPSON CORPORATION can assume no responsibility for 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 purpose only and may be trademarks or registered trademarks of their

respective owners. EPSON disclaims any and all rights in those marks.

Imaging Products CS, PL & Environmental Management

PRECAUTIONS

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

DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing

procedures preceded by DANGER Headings.

WARNING Signals a precaution which, if ignored, could result in damage to equipment.

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

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM 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 CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURY FROM METAL PARTS WITH SHARP EDGES.

WARNING

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

2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, 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 THE EPSON PRODUCT HAS BEEN DISCONNECTED 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 SECONDSOURCE ICs OR OTHER NON-APPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.

6. WHEN AIR DUSTER IS USED ON THE REPAIR AND THE MAINTENANCE WORK, THE USE OF THE AIR DUSTER PRODUCTS CONTAINING THE INFLAMMABLE GAS IS PROHIBITED.

About This Manual

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.

Manual Configuration

This manual consists of six chapters and Appendix.

CHAPTER 1.PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the product.

CHAPTER 2.OPERATING PRINCIPLES

Describes the theory of electrical and mechanical operations of the product.

CHAPTER 3.TROUBLESHOOTING

Describes the step-by-step procedures for the troubleshooting.

CHAPTER 4.DISASSEMBLY / ASSEMBLY

Describes the step-by-step procedures for disassembling and assembling the product.

CHAPTER 5.ADJUSTMENT

Provides Epson-approved methods for adjustment.

CHAPTER 6.MAINTENANCE

Provides preventive maintenance procedures and the lists of Epsonapproved lubricants and adhesives required for servicing the product.

CHAPTER 7.APPENDIX

Provides the following additional information for reference:

• Connectors

• Routing

• ASP List

• Exploded Diagrams

• Circuit Diagrams

Symbols Used in this Manual

Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are used, and always read NOTE, CAUTION, or WARNING messages.

Indicates an operating or maintenance procedure, practice or condition that is necessary to keep the product’s quality.

Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or destruction of, equipment.

May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.

Indicates that a particular task must be carried out according to a certain standard after disassembly and before re-assembly, otherwise the quality of the components in question may be adversely affected.

Revision Status

Revision Date of Issue Description

A November 30, 2006 First release

EPSON Stylus Pro 3800/3800C/3850 Revision A

Contents

Chapter 1 PRODUCT DESCRIPTION

1.1 Product Description ............................................................................................ 10

1.2 Basic Specifications ............................................................................................ 11

1.2.1 Basic Specifications ................................................................................... 11

1.2.2 Electric Specifications ............................................................................... 12

1.2.3 Environmental Characteristics ................................................................... 12

1.2.4 Reliability/Durability ................................................................................. 13

1.3 Printing Specifications ........................................................................................ 14

1.3.1 Paper Feed Specifications .......................................................................... 14

1.3.2 Paper Feeder Specifications ....................................................................... 14

1.3.3 Paper Support ............................................................................................. 15

1.3.4 Printable Area ............................................................................................ 16

1.4 Print Mode .......................................................................................................... 17

1.4.1 Print Mode ................................................................................................. 17

1.4.2 Borderless Printing .................................................................................... 17

1.5 Appearance Specifications ................................................................................. 19

1.5.1 Dimensions/Weight ................................................................................... 19

1.5.2 Part Names ................................................................................................. 19

1.6 Operation Panel .................................................................................................. 20

1.6.1 Buttons and Functions ............................................................................... 20

1.6.2 Buttons ....................................................................................................... 20

1.6.3 LED ............................................................................................................ 20

1.6.4 Panel Display ............................................................................................. 21

1.6.5 Icons on the LCD ....................................................................................... 22

1.6.6 Menu Settings ............................................................................................ 24

1.6.7 Maintenance Mode .................................................................................... 28

1.6.8 Error/Warning Statuses Displayed/Indicated on/by LCD/LED ................ 29

Chapter 2 OPERATING PRINCIPLES

2.1 Overview ............................................................................................................ 36

2.2 Print Mechanism ................................................................................................. 40

2.3 Ink Supply Mechanism ....................................................................................... 41

2.3.1 Ink Flow Path ............................................................................................. 41

2.3.2 Ink Pressurizing Mechanism ..................................................................... 41

2.3.3 Ink Change System .................................................................................... 43

2.4 Cleaning Mechanism .......................................................................................... 44

2.5 Carriage Mechanism ........................................................................................... 46

2.5.1 Carriage Movement Mechanism ............................................................... 46

2.5.2 Platen Gap Adjustment Mechanism .......................................................... 47

2.6 Paper Feed Mechanism ...................................................................................... 48

2.6.1 Paper Feed Path ......................................................................................... 48

2.6.2 Paper Loading Mechanism ........................................................................ 49

2.6.3 Paper Feed Mechanism .............................................................................. 52

2.7 Ink Mark Sensor ................................................................................................. 56

2.8 Other Mechanisms .............................................................................................. 57

2.9 Outline of Circuit Boards ................................................................................... 58

2.9.1 Main Board ................................................................................................ 58

2.9.2 Power Supply Board .................................................................................. 59

2.10 Colorimetric Calibration (Color ID) Overview ................................................ 60

Chapter 3 TROUBLE SHOOTING

3.1 Overview ............................................................................................................ 62

3.1.1 Preliminary Check ..................................................................................... 62

3.1.2 Troubleshooting Procedure ........................................................................ 62

3.2 List of Panel Messages ....................................................................................... 63

3.3 Remedies for Warning Messages ....................................................................... 66

3.4 Remedies for Error Messages ............................................................................. 68

3.5 Remedies for Service Call Error ........................................................................ 74

3.6 Remedies for Print Quality Troubles .................................................................. 82

EPSON Stylus Pro 3800/3800C/3850 Revision A

Chapter 4 DISASSEMBLY & ASSEMBLY

4.1 Overview ............................................................................................................ 86

4.1.1 Precautions ................................................................................................. 86

4.1.2 Orientation Definition ................................................................................ 88

4.1.3 Tools .......................................................................................................... 88

4.1.4 Screws ........................................................................................................ 89

4.1.5 Chapter Organization ................................................................................. 89

4.2 Disassembly Flowchart ...................................................................................... 90

4.3 Disassembly/Assembly Procedure (Group 1) .................................................... 91

4.3.1 Unlocking the CARRIAGE, ASSY. manually .......................................... 91

4.3.2 Consumable ............................................................................................... 92

4.3.3 Removing the Housing and OPERATION, PANEL, ASSY. .................... 94

4.3.4 Removing the Circuit Boards .................................................................. 112

4.3.5 Removing the MOTOR ASSEMBLIES. ................................................. 118

4.3.6 Removing the SENSORS and SWITCHES ............................................ 123

4.3.7 Removing the Carriage Mechanism ........................................................ 130

4.3.8 Removing the PAPER FEED MECHANISM ......................................... 132

4.3.9 Removing the Ink System Mechanism .................................................... 148

4.3.10 Removing the PAPER FEED MECHANISM ....................................... 164

4.3.11 Removing the Carriage Mechanism ...................................................... 169

4.3.12 Removing the INK SYSTEM MECHANISM ...................................... 176

4.3.13 PRINTER MECHANISM ..................................................................... 178

4.4 Disassembly/Assembly Procedure (Group 2) .................................................. 179

4.4.1 Removing the PAPER FEED MECHANISM ......................................... 179

Chapter 5 ADJUSTMENT

5.1 Overview .......................................................................................................... 191

5.1.1 Precautions ............................................................................................... 191

5.1.2 Adjustment Workflow ............................................................................. 191

5.1.3 Parts and Units that Require Adjustments ............................................... 191

5.1.4 Required Adjustments by Part or Unit ..................................................... 192

5.1.5 Description of Adjustments ..................................................................... 193

5.1.6 Tools for Adjustments ............................................................................. 195

5.1.7 Adjustment Program Basic Operations ................................................... 196

5.2 Mechanical Adjustment .................................................................................... 198

5.2.1 PF Timing Belt Tension Adjustment ....................................................... 198

5.2.2 LD Roller Position Adjustment ............................................................... 200

5.2.3 PG Position Adjustment .......................................................................... 201

5.3 Standard Adjustment ........................................................................................ 203

5.3.1 RTC&USB ID ......................................................................................... 203

5.3.2 Head Rank ID .......................................................................................... 204

5.3.3 Print Head Slant Adjustment (PF) ........................................................... 205

5.3.4 Print Head Slant Adjustment (CR) .......................................................... 207

5.3.5 Initial Ink Charge Flag ON/OFF ............................................................. 211

5.3.6 Parameter Backup .................................................................................... 212

5.3.7 Check PG ................................................................................................. 214

5.3.8 Initial Ink Charge ..................................................................................... 215

5.3.9 Cleaning ................................................................................................... 215

5.3.10 Input Serial number ............................................................................... 216

5.3.11 Colorimetric Calibration Tool ............................................................... 217

5.3.12 Install F/W ............................................................................................. 229

5.3.13 Ink Mark Sensor Adjustment for Auto Nozzle Check .......................... 230

5.3.14 Washing Head And Discharge Ink ........................................................ 232

5.3.15 Auto Bi-D Adjustment ........................................................................... 233

5.3.16 Auto Uni-D Adjustment ........................................................................ 234

5.3.17 Check the Release Of Grid Roller ......................................................... 235

5.3.18 Check Network Communication ........................................................... 236

5.3.19 T&B&S Adjustment .............................................................................. 237

5.3.20 PF Adjustment ....................................................................................... 239

5.3.21 EJ Adjustment ........................................................................................ 241

5.3.22 Check Ink Selector Operation ................................................................ 243

5.3.23 Write Constant When CR change .......................................................... 244

5.4 Check Results ................................................................................................... 245

5.4.1 Check Nozzle ........................................................................................... 245

5.4.2 Print Image .............................................................................................. 246

5.4.3 Check Results .......................................................................................... 247

5.4.4 Check Alignment ..................................................................................... 248

5.5 Reset Counters .................................................................................................. 249

Chapter 6 MAINTENANCE

6.1 Overview .......................................................................................................... 251

6.1.1 Product Life Information ......................................................................... 252

6.2 Cleaning ............................................................................................................ 253

6.3 Lubrication ....................................................................................................... 254

EPSON Stylus Pro 3800/3800C/3850 Revision A

Chapter 7 APPENDIX

7.1 Connectors ........................................................................................................ 263

7.2 Cables Connection Layout ............................................................................... 265

7.3 ASP List ............................................................................................................ 267

7.4 Exploded Diagrams .......................................................................................... 269

7.5 Circuit Diagrams .............................................................................................. 278

PRODUCT DESCRIPTION

CHAPTER

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.1 Product Description

EPSON Stylus Pro 3800/3800C/3850 are large size color inkjet printers that support up to A2 (17”) sized cut-sheet paper.

 F-Mach (180N x 8-column) print head

 Maximum print resolution (dpi): 2880 x 1440, Minimum dot: 3.5pl MSDT

 Superior color and monochrome reproducibility with eight colors

HCD2 + K3 ink system, consisting of 4 basic colors (YMCK) with 2 complementary colors and 2 complementary blacks

 80ml-size (injection volume) new ink cartridge

 Automatic switching between black ink modes; Photo black and Matte black.

Requires no user intervention, and ink used during the conversion is remarkably reduced.

 Two manual paper feeders are provided in addition to the ASF (Auto Sheet

Feeder)

 Rear manual feeder: FA paper

 Front manual feeder: Board paper (up to 1.5 mm thickness)

Figure 1-1. External View

 High speed network and communication supported

 100BASE-TX/10BASE-T Network Interface

 USB 2.0 High Speed Interface

 Borderless printing supported

 Clearly arranged buttons and a large LCD offer quick, easy operation

PRODUCT DESCRIPTION Product Description 10

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.2 Basic Specifications

1.2.1 Basic Specifications

Item Specifications

Maximum paper width 17 inch (43 cm)

Printing method On-demand ink jet method

Printing direction Two-way shortest distance printing with logical seeking

Print Head

Ink

Maximum print resolution 2880 dpi x 1440 dpi

Smallest dot size 3.5 picoliters

Dot size Refer to Table 1-2

Printing function

Automatic adjustment function

Printing speed/area

Note *: The all 9 ink cartridges can be installed simultaneously. The printer automatically switches

Type F-Mach

Number of nozzles 180 Nozzles per color (180 Nozzles x 8 colors)*

Type HCD2 + K3 (9 independent ink cartridges)*

Matte Black*, Photo Black*, Light Black, Light Light

Color of inks

Alphanumeric characters

Graphic mode Refer to Table 1-4

between Photo and Matte black depending on the driver selection while utilizing the same physical ink channel.

Black, Cyan, Magenta, Yellow, Light Cyan, Light Magenta (Refer to Table 1-1 for the alignment sequence of the cartridges)

Borderless printing

Silent paper feeding

Automatic bottom processing

L/4 x 6 Photo high-speed printing

Auto nozzle check

Auto Bi-d adjustment

Refer to Table 1-3

Table 1-1. Cartridge Alignment Sequence

Row 1 Row 2 Row 3 Row 4 Row 5 Row 6 Row 7 Row 8 Row 9

Matte Black (MK)

Switched by an Ink

Photo Black

(PK)

Selector

Light

Black

(LK)

Light Light

Black

(LLK)

Cyan

(C)

Magenta

(M)

Light Cyan

(Lc)

Light

Magenta

(Lm)

Yellow

(Y)

Table 1-2. Dot Size

Dot Size L (pl) M (pl) S (pl)

VSD1 22.2 13.8 6.6

VSD2 13.2 5.9 3.5

VSD3 -- -- 3.5

Economy 22.2 -- --

Table 1-3. Printing Speed and Area (Alphanumeric Characters)

Item Specifications

Character quality

Character pitch

Printing area

Printing speed

Fine

10 CPI

167 digits

280 cps

Table 1-4. Printing Speed and Area (Graphic Mode)

Horizontal Resolution

(dpi)

360 441.8 mm (17.39 inch) 6,262 280 cps

720 441.8 mm (17.39 inch) 12,524 280 cps

1440 441.8 mm (17.39 inch) 25,047 280 cps

2880 441.8 mm (17.39 inch) 50,094 280 cps

Note *: Includes margins that bleed off the edges of paper. (max. 5 mm for both home and the opposite

sides.)

Maximum Printing Area*Printable Dots Printing Speed

PRODUCT DESCRIPTION Basic Specifications 11

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.2.2 Electric Specifications

Item

100/120V Model 220/240V Model

Rated voltage 100 to 120 VAC 220 to 240 VAC

Input voltage range 90 to 132 VAC 198 to 264 VAC

Rated frequency 50 to 60Hz

Input frequency range 49.5 to 60.5Hz

Rated current 0.6 A 0.3 A

Operating Approx. 25 W Approx. 25 W

Power consumption

Low-power mode

Approx. 5 W Approx. 5.5 W

S/W turned OFF Approx. 0.3 W Approx. 0.4 W

Insulation resistance

Dielectric strength

10 M: or more (between AC line and chassis at 500 VDC)

1.0 kVrms AC for 1 min. or 1.2 kVrms AC for 1 sec. (between AC line and chassis)

Leak current 0.25 mA or less

 Conforms to International Energy Star Program

Compliance with regulations

Note *: Shifting to low-power mode takes 15 min.

(Category: conforms to the harmonic restraint measure guideline)

 Conforms to VCCI Class B

Specification

1.2.3 Environmental Characteristics

TEMPERATURE/HUMIDITY

Condition Temperature

Operating 10 to 35 °C 20 to 80 %

before unpacking -20 to 60 °C*

Storage*

Note "*1": Includes condition during transportation.

after unpacking -20 to 40 °C*

"*2": The combined temperature and humidity conditions must be within the blue-shaded range

shown in Figure 1-2.

"*3": Within 1 month under 40°C, within 120 hours under 60°C.

Humidity (%)

Humidity*2

(non condensation)

5 to 85 %

Normal ambient environment

The printer allowable range

10 15

35 40

Temperature (°C)

Figure 1-2. Temperature/Humidity Range

PRODUCT DESCRIPTION Basic Specifications 12

EPSON Stylus Pro 3800/3800C/3850 Revision A

RESISTANCE TO VIBRATION/SHOCK

Vibration Shock

Operating 0.15G, 10 to 55Hz 1G, within 1ms

Storage 0.50G, 10 to 55Hz 2G, within 2ms

C A U T I O N

 When transporting the printer, the print head must be capped,

and the ink cartridges must be removed.

 If the print head is not capped with the power turned off, turn

the printer on with the ink cartridges installed, then turn it off after confirming the print head is capped.

1.2.4 Reliability/Durability

Item Target

Until any one of the following conditions is met.

Operating life of the printer

MPBF

MTBF

Battery life 5 to 10 years

Extension of normal TCL generation time

Simultaneous use of CL timer T1 and FL timer Tf

Periodical flushing Every 1 hour

Note "*1": A4-sized paper, ECMA Pattern printing

"*2": Approx. 5% coverage "*3": Total print time of 850 hours in normal ambient temperature, approx. 10% coverage.

(POH = Power on hours)

• 12,000 pages (A2 plain paper fine mode)

• 1,600,000 paths (carriage movement)

•5 years

Black: 300 pages or more Color: 150 pages or more

20,000 POH (No faults with electronic parts and fans)

4,320 hours (6 months) printing time within 2 hours 360 hours (15 days) printing time over 2 hours

Execution

PRODUCT DESCRIPTION Basic Specifications 13

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.3 Printing Specifications

1.3.1 Paper Feed Specifications

Item Specification

Paper feed method Friction feed Minimum pitch of paper feed 2.94 Pm (1/8640 inch)

Paper feed speed 25.4 mm (1 inch) when line feed: 333 msec (3 inch/sec)

1.3.2 Paper Feeder Specifications

EPSON Stylus Pro 3800/3800C/3850 support three types of paper feeding methods; ASF, Rear Manual Feed, and Front Manual Feed. The paper size and thickness for each of the methods are shown in the table below. For paper type and feeder capacity, refer to "1.3.3 Paper Support" (p15).

Paper Feed

Method

ASF 89 to 431.8 127 to 950 L/4”x6” to A2/USC 0.08 to 0.27

Rear Manual Feed 210 to 431.8 279.4 to 950 A4/LTR to A2/USC 0.29 to 0.5

Front Manual Feed 210 to 420 279.4 to 594 A4/LTR to A2 1.2 to 1.5

Width (mm) Length (mm)

Paper Size

Standard paper

(mm)

Thickness

(mm)

PRODUCT DESCRIPTION Printing Specifications 14

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.3.3 Paper Support

Media Name Size (mm)

L (3R) (89 x 127) ASF (20)  P  5” x 7” (127 x 178) ASF (20)  P   16:9 wide (102 x 148) ASF (20)  P  8” x 10” (203 x 254) ASF (20)  P  4” x 6” (102 x 152) ASF (20)  P 

Premium Glossy Photo Paper

Premium Semigloss Photo Paper

Premium Luster Photo Paper

Singleweight Matte Paper

Photo Quality Ink Jet Paper (KANZAN for EU A4 only, ESF for others)

Proofing Paper Semimatte (Commercial Semimatte)

11” x 14” (279 x 356) ASF (10)  P  Letter (216 x 279) ASF (20)  P  A4 (210 x 297) ASF (20)  P   A3 (297 x 420) ASF (10)  P  S-B/A3+ (329 x 483) ASF (10)  P    A2 (420 x 594) ASF (1)  P  USC (432 x 559) ASF (1)  P  4” x 6” (102 x 152) ASF (20)  P  Letter (216 x 279) ASF (20)  P  A4 (210 x 297) ASF (20)  P  A3 (297 x 420) ASF (10)  P    S-B/A3+ (329 x 483) ASF (10)  P  A2 (420 x 594) ASF (1)  P   Letter (216 x 279) ASF (20)  P  A3 (297 x 420) ASF (10)  P  S-B/A3+ (329 x 483) ASF (10)  P  USC (432 x 559) ASF (1)  P   

S-B/A3+ (329 x 483) ASF (50) NA M 

A4 (210 x 297) ASF (100) NA P/M   Letter (216 x 279) ASF (100) NA P/M  Legal (216 x 358) ASF (50) NA P/M    USB (279 x 432) ASF (50) NA P/M 

S-B/A3+ (329x483) ASF (1) NA P   

Feeder

(capacity*1)

Borderless

print*

Black

Ink*

EAI EU Asia

Media Name Size (mm)

Letter (216x279) ASF (20)  M 

Enhanced Matte Paper (EAI)/Archival Matte Paper (EU, Asia)

Watercolor PaperRadiant White

UltraSmooth Fine Art Paper

Velvet Fine Art Paper

Note "*1": ASF = Auto Sheet Feeder

R.Manual = Rear Manual Feed Front Manual Feed supports thicker paper (1.2 to 1.5mm thickness). Paper loading capacity for both Rear and Front Manual Feed is one sheet.

"*2": User-defined sized paper (89 x 127mm to 432 x 950mm) is not available for borderless

printing.

"*3": Shows the supported black ink type

P: Photo Black M: Matte Black P/M: Both Photo and Matte Black are supported

A4 (210x297) ASF (20)  M   A3 (297x420) ASF (10)  M  S-B/A3+ (329x483) ASF (10)  M    A2 (420x594) ASF (1)  M  USC (432x559) ASF (1)  M 

S-B/A3+ (329x483)

A3+ (329x483)

A2 (420x594)

USC (432x559)

Letter (216x279)

S-B/A3+ (329x483)

A2 (420x594)

USC (432x559)

Feeder

(capacity*1)

R.Manual

(1)

Borderless

print*

Black

 M 

 M   

 M 

 M 

 M   

 M 

 M 

Ink*

EAI EU Asia

PRODUCT DESCRIPTION Printing Specifications 15

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.3.4 Printable Area

Item Dimension

PW (paper width) 89mm to 431.8mm

PL (paper length) 127mm to 950mm

TM (top margin) 0mm/3mm/20mm*

BM (bottom margin) 0mm/3mm/20mm*

LM (left margin) 0mm/3mm

RM (right margin) 0mm/3mm

Note *: TM and BM are fixed to 20 mm in front manual feeding.

 The printer detects the paper width when paper is set. (If the paper width detection

setting is OFF, the printer does not detect the paper width.)

 The printer does not print the image exceeding the detected paper width and the

printable area that is specified in the paper setting. (If the paper width detection setting is OFF, the printer may print on the platen.)

 The top/bottom/left/right margins (TM, BM, LM, RM) can be set to zero under

special conditions.



Because the printer detects tilt of loaded paper in a range of 3 mm at both left and right sides, an image bleeds off both left and right edges of paper by 3 mm each at borderless printing. However, if the distance between the paper edges and the platen (sponge width) is less than 3 mm, the bleeding margins are adjusted to less than 3 mm (within the range of 0 mm (Refer to "1.4.2 Borderless Printing" (p17), for the borderless print specification.)

a

3 mm) not to directly print on the platen.

LM RM

Printable Area

Paper Feed Direction

Figure 1-3. Printable Area

PRODUCT DESCRIPTION Printing Specifications 16

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.4 Print Mode

This section provides specifications of the print mode and borderless printing.

1.4.1 Print Mode

Media Type Print Quality

Plain Paper

Inkjet Paper

-- ISV Square Resolution Mode

Note "*1": Driver not supported

"*2": Driver not supported (supports Out_bit_1 only)

Draft 360 x 360 dpi VSD1_Eco (280cps)

Normal (360 dpi) 720 x 360 dpi VSD1 (280cps)

Fine (720 dpi) 720 x 720 dpi VSD1 (280cps)

Super Fine (1440 dpi) 1440 x 720 dpi VSD2 (280cps)

Super Photo (2880 dpi) 2880 x 1440 dpi VSD3 (280cps)

1.4.2 Borderless Printing

AVAILABLE PAPER SIZE

The following table lists paper sizes in the order shown by the printer driver, and shows the borderless printing availability.

Print Density

(H x V)

1440 x 1440 dpi VSD2 (280cps)

2880 x 2880 dpi VSD3 (280cps)

Dot Size

Table 1-5. Borderless Printing Available Paper Sizes

Paper Size Displayed by Driver Borderless Print

A4 (210 x 297 mm) Available

A3 (297 x 420 mm) Available

Super A3 (329 x 483 mm) Available

A2 (420 x 594 mm) Available

B5 (182 x 257 mm) NA

B4 (257 x 364 mm) NA

B3 (364 x 514 mm) NA

89 x 127 mm (3.5 x 5 in) Available

102 x 152 mm (4 x 6 in) Available

127 x 178 mm (5 x 7 in) Available

16:9 wide (102 x 181 mm) Available

203 x 254 mm (8 x 10 in) Available

254 x 305 mm (10 x 12 in) Available

279 x 356 mm (11 x 14 in) Available

305 x 305 mm (12 x 12 in) NA

406 x 508 mm (16 x 20 in) Available

User Defined* NA

Note *: The minimum user defined size is 3.5 x 5 in (89 x 127 mm), and the maximum size is 17 x 37.4

in (432 x 950 mm).

Table 1-5. Borderless Printing Available Paper Sizes

Paper Size Displayed by Driver Borderless Print

Letter (8 2/1 x 11 in) Available

Legal (8 2/1 x 14 in) NA

Half Letter (5 2/1 x 8 2/1 in) NA

US B (11 x 17 in) Available

US C (17 x 22 in) Available

A6 (105 x 148 mm) NA

A5 (148 x 210 mm) NA

PRODUCT DESCRIPTION Print Mode 17

EPSON Stylus Pro 3800/3800C/3850 Revision A

AUTOMATIC EXPANSION SPECIFICATION

The driver automatically changes margins that bleed off the edges of paper according to the paper size.

Table 1-6. Borderless Printing Margins (Bleed)

16:9 Wide

L/4” x 6”

5” x 7”

8” x 10”

A4 / Letter

Top 1.34mm (19dot) 2.96mm (42dot) 3.32mm (47dot)

Left/Right 2.54mm (36dot) 3.46mm (49dot) 4.52mm (64dot)

Bottom 2.54mm (36dot) 4.02mm (57dot) 4.52mm (64dot) 5.01mm (71dot)

Note : The number of dots are based on 360 dpi.

11” x 14”

A3/A3+

A2/USC

PRINTABLE AREA

Printing position coordinate origin

3.5m (max)

Paper edge

Paper

feeding

direction

5mm (max)

Width-direction

printable area

Page control

coordinate origin

Printable area

Paper width

5mm

(max)

Figure 1-4. Printable Area

printable area

Length-direction

5mm

(max)

Bottom position

Note : Print start position can be shifted toward the home position by 8 m by changing the appropriate

setting.

PRODUCT DESCRIPTION Print Mode 18

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.5 Appearance Specifications

This section describes external dimensions and parts names.

1.5.1 Dimensions/Weight

684 mm

1040 mm

293 mm

257 mm

376 mm

550 mm

100 mm

 Dimensions

Storage: 684 (W) x 376 (H) x 257 (D) mm Printing: 684 (W) x 1040 (H) x 550 (D) mm

 Weight

18.5 kg (excluding ink cartridges, including Maintenance cartridge)

19.8 kg (including ink cartridges)

1.5.2 Part Names

Ink Cover

Paper Eject

Tray

Paper Support

Edge Guide

Top Cover

Board Paper Tray

Auto Sheet Feeder

Maintenance Cartridge Cover

Paper Support Edge Guide

Print Head (Nozzle)

Operation Panel

90 mm

Paper Eject Tray Cover

Rear Paper

Feeder

Exhaust Outlet

Figure 1-5. External Dimensions

USB Interface Connector

Network Interface Connector

AC Connector

Figure 1-6. Parts Names

PRODUCT DESCRIPTION Appearance Specifications 19

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.6 Operation Panel

1.6.1 Buttons and Functions

Power LED

Paper status LED

Ink status LED

Power

Cancel/Reset

4 6

Enter

Paper Feed/Down

Figure 1-7. Operation Panel

1.6.2 Buttons

Button

1 Power Turns the power ON or OFF

2 Cancel/Reset

3 Menu/Right

4 Back/Left -- --

Ink Cover Open/

Normal One Press

• Clears error

• Opens I/H Cover (When the printer runs out of ink)

• During printing Changes the panel display to the Printer Status Menu

• When not printing Shifts the printer into the Panel Setting Mode

Functions

Hold Down for

3 Seconds

Cancels the job Interrupts panel setting

Runs a head cleaning

Unlocks the Ink Cover

Back/Left

Ink Cover Open/Up

Menu/Right

Function at the

Panel Setting

-- Power OFF

Moves to the next menu item (Descent)

Moves to the previous menu item (Ascent)

Set Value +

Functions

Button

Paper Feed/

Down

7 Enter -- --

Note "*1": The printer is always turned OFF regardless of operation status.

"*2": When turning the power ON while holding down the Cancel button, the maintenance mode

becomes activated. (Refer to

"*3": Deactivated during printing.

Normal One Press

• When paper is set ASF: Ejects the paper Manual-Rear: Backfeeds the paper Manual-Front: Ejects the paper

• When paper is not set ASF starts paper feeding

• When Manual-Front Tray Cover is opened. Manual-Front starts paper feeding

"1.6.7 Maintenance Mode" (p28)

Hold Down for

3 Seconds

-- Set Value -

for details.)

Function at the

Panel Setting

• Accepts the change of setting

• Executes the selected operation

• Saves the setting

1.6.3 LED

LED Color Displays Status

ON The power is ON.

Receiving data, during printing, or executing power off

Power Green

Paper status Red

Ink status Red

Note *: Alternately turns On and Off every 500 ms. In the case of maintenance call error, they light for 100

ms at intervals of five seconds.

Note : When a service call error occurs, all the LEDs flash.

Flashing

OFF The power is OFF.

ON Impossible to make a print due to the paper status.

Flashing

OFF

ON An ink-related error is occurring.

Flashing*An ink-related warning is occurring.

OFF

sequence.

• A paper feeding or ejecting error is occurring.

• A maintenance call error is occurring.

The papers are in normal condition without an error or warning.

The inks are in normal condition without an error or warning.

PRODUCT DESCRIPTION Operation Panel 20

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.6.4 Panel Display

 Normal indication

Figure 1-8. Panel Display (Normal indication)

No. Item Description

1 Messages Printer status, operation status, and error messages are displayed.

2 User-defined paper No.

Paper type

(For Cut-sheet only)

4 Platen Gap

5 Ink Cartridge Status The remaining amount of ink in each cartridge is displayed.

Remaining Maintenance Cartridge

Status

The user-defined paper setting number created by the CUSTOM PAPER function in the panel setting menu is displayed.

This icon is displayed when the number of paper, except STANDARD paper, created by the CUSTOM PAPER function in the panel setting is selected.

The platen gap setting made by the PLATEN GAP function in the panel setting menu is indicated.

Free space of the Maintenance Cartridge is displayed.

 Error indication

Figure 1-9. Panel Display (Error indication)

No. Item Description

1 Error name Error name is highlighted.

2 Error icon Error icon is displayed.

3 Remedy Describes the cause of error and gives instructions to clear the error.

Note : When multiple errors occur simultaneously, they are displayed in the order of precedence. The

next error indication appears when previous one is cleared.

 Error indication (Displayed with an illustration)

3 4

Figure 1-10. Panel Display (Error indication: Displayed with an illustration)

No Item Description

1 Error name Error name is highlighted.

2 Error icon Error icon is displayed

3 Illustration

4 Remedy Describes the cause of the error and gives instructions to clear the error.

Note : When multiple errors occur simultaneously, they are displayed in the order of precedence. The

next error indication appears when previous one is cleared.

Describes the cause of the error and gives instructions to clear the error using a illustration.

PRODUCT DESCRIPTION Operation Panel 21

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.6.5 Icons on the LCD

PLATEN GAP SETTING

The platen gap specified in PRINTER SETUP and CUSTOM PAPER menus is indicated with icons as shown below.

Icons Status

-- STANDARD is selected.

NARROW is selected.

WIDE is selected.

WIDER

is selected.

WIDEST is selected.

Table 1-7. Relation between Counters and Remaining Ink

Remaining Ink

No.

0*1Not selected K 6 67-72 11 39-44 16 12-16

1 95-100 7 62-66 12 34-38 17 6-11

2 89-94 8 56-61 13 28-33 18 1-5

3 84-88 9 51-55 14 23-27 19

4 78-83 10 45-50 15 17-22 20

5 73-77

Note "*1": Displays either Matte BK or Photo BK that is not in use when printing.

(%)

"*2": Counter No.19 is displayed when non-genuine ink cartridge(s) is used.

No.

Remaining Ink

(%)

No.

Remaining Ink

(%)

No.

Remaining Ink

Ink Cartridge

 Ink Low/Ink Out Indicator

The indicators below is displayed when Ink becomes Low or Out.

No.

Icon

(Ink Low)

1 2 3 4 5 6 7 8 9

(%)

Ink Out

Error

INK CARTRIDGE STATUS

 Ink Counter

Icon

(Ink Out)

The remaining amount of ink in each cartridge is indicated on the panel as shown below.

Colors PK C LK Lc LLK Lm M MK Y

12 4 567891011

Figure 1-11. Ink Counter

16 17 18 19 20

PRODUCT DESCRIPTION Operation Panel 22

EPSON Stylus Pro 3800/3800C/3850 Revision A

MAINTENANCE CARTRIDGE STATUS

 Maintenance Cartridge Counter

The free space of the Maintenance Cartridge is indicated as shown below.

Figure 1-12. Maintenance Cartridge Status

Table 1-8. Relation between Counters and Remaining Ink

No. Free Space

1 96-100 9 58-61 17 20-23

2 91-95 10 53-57 18 15-19

3 86-90 11 48-52 19 10-14

4 81-85 12 43-47 20 5-9

5 77-80 13 39-42 21 1-4

6 72-76 14 34-38 22 0

7 67-71 15 29-33 23 Full

8 62-66 16 24-28

(%)

No. Free Space

(%)

No. Free Space

(%)

PRODUCT DESCRIPTION Operation Panel 23

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.6.6 Menu Settings

Table 1-9. List of Menu Settings

Top Menu Menu Items Settings (Bold = default) Explanation

NARROW

PRINTER SETUP

TEST PRINT

PRINTER STATUS

STANDARD

PLATEN GAP

PAPER SIZE CHECK

INITIALIZE SETTINGS EXECUTE All settings made using the control panel are returned to their default.

NOZZLE CHECK

STATUS SHEET PRINT Prints information on the printer status.

NETWORK STATUS SHEET PRINT

JOB INFORMATION PRINT Prints information on print jobs stored in the printer up to 10 jobs.

CUSTOM PAPER PRINT Prints setting values set in the CUSTOM PAPER menu.

VERSION o0XXXX-XX.XX.ICBS Displays the firmware version installed on the printer. (see "Firmware version indication" (p27))

PRINTABLE PAGES

INK LEVEL

MAINTENANCE TANK

USAGE COUNT INK xxxxx.xml Displays ink amount consumed in ml units.

JOB HISTORY

TOTAL PRINTS nnnnnn PAGES Displays the gross number of printed pages in decimal up to six digits.

(MAINTENANCE TANK)

WIDE

WIDER

WIDEST

OFF

MANUAL

AUTO

(Ink color)

nnnnnnn PAGES

(Ink color)

nn%

No.0 to No.9

INK xxxxx.xml

PAPER xxxx.x cm

Adjusts the gap between the print head and the platen. The set value is returned to the default at every power-on. When the PAPER TYPE in the CUSTOM PAPER menu is set to other than the default, the PLATEN GAP setting in the menu takes priority over this setting. (see "PG settings list" (p27))

Setting to OFF deactivates the sensor that detects paper width when paper is loaded. This enables to print on paper whose width is out of the sensor’s detectable range, however, the user should know that if he/she prints an image larger than the paper size, the image extended off the edges of the paper is printed directly on the platen.

Prints a nozzle check pattern, firmware version, usage count of paper and ink, and free space in the maintenance cartridge. Visually check the printed check pattern, and decide whether cleaning is required or not.

Prints a nozzle check pattern, firmware version, usage count of paper and ink, and free space in the maintenance cartridge. The ink mark sensor scans the printed check pattern and cleaning is automatically carried out if it is judged necessary.

Prints information on the network status.

Displays the number of pages that can be printed with the installed ink cartridge.

Displays the percentage of ink level in each installed cartridge.

Displays the percentage of free space in the maintenance cartridge.

 JOB NO.

Displays the job number assigned by the printer. The No.0 is the latest job.

 INK LEVEL

Displays ink amount consumed for each job.

 PAPER SIZE

Displays the number of pages of each job.

PRODUCT DESCRIPTION Operation Panel 24

EPSON Stylus Pro 3800/3800C/3850 Revision A

Table 1-9. List of Menu Settings

Top Menu Menu Items Settings (Bold = default) Explanation

CUSTOM PAPER

MAINTENANCE

HEAD ALIGNMENT

PAPER NUMBER (1-10)

PAPER TYPE

PLATEN GAP

THICKNESS PATTERN PRINT

PAPER FEED ADJUST A

PAPER FEED ADJUST B

DRYING TIME

BLACK INK CHANGE EXECUTE Switches the black ink between Matte and Photo.

POWER CLEANING EXECUTE Performs a power cleaning.

CLOCK SETTING YY/MM/DD HH:MM Sets date and time of the internal clock.

CONTRAST ADJUSTMENT

AUTO

MANUAL

STANDARD

PAPER NO.1-10

MATTE THICK

MATTE THIN

PHOTO PLAIN

FINE ART PAPER

REMOTE PANEL PAPER

NARROW

STANDARD

WIDE

WIDER

0.00%

-0.7% to 0.7%

0.00%

-0.7% to 0.7%

0.0 SEC

0.0 SEC to 10.0 SEC

-20 - 0 - +20 (dec)

PREM.GLOSSY/LUSTER

PQ INK JET PAPER

ENHANCED MATTE PAPER

0.1 mm

0.2 mm

0.3 mm

0.4 mm

0.5 mm

Paper type and relating settings can be saved and easily retrieved by assigning a number to them. Up to 10 groups of settings can be stored. When EPSON genuine paper is used, STANDARD should be selected.

Selects a paper type corresponds to the paper.

Adjusts the platen gap according to the selected paper type.

Prints a pattern to detect the thickness of loaded paper. (When STANDARD is selected in the PAPER NUMBER, this menu is not displayed.)

Sets paper feed amount for the printable area. The amount increases/decreases by the selected percentage of one meter.

Sets paper feed amount for the bottom area (out of the printable area). The amount increases/decreases by the selected percentage of one meter.

Sets a time period to stop the print head movement for drying ink.

Adjusts the contrast of the control panel display.

Selects a paper type to be used for the gap adjustment.

Selects a gap to be adjusted manually.

PRODUCT DESCRIPTION Operation Panel 25

EPSON Stylus Pro 3800/3800C/3850 Revision A

Table 1-9. List of Menu Settings

Top Menu Menu Items Settings (Bold = default) Explanation

NETWORK SETUP

IP ADDRESS SETTING

IP, SN, DG SETTING

APPLE TALK

MS NETWORK

BONJOUR

INIT NETWORK SETTING

DISABLE

ENABLE

AUTO

PANEL

PING

---

OFF

EXECUTE

Disables or enables a network connection. The other NETWORK SETUP menu items appear only when ENABLE has been selected. Under the following conditions, this setting is automatically changed to DISABLE.

• Every power-on (always returns to the default: DISABLE)

• When the network setup initialization is performed.

• When the PANEL DEFAULT in the maintenance mode is performed.

Select the settings for the IP address to use. When [PANEL] is selected, the settings in [IP, SN, DG SETTING] are enabled.

Set the IP address, Subnet mask, and default gateway.

Enables (ON)/disables (OFF) AppleTalk.

Enables (ON)/disables (OFF) MS NETWORK.

Enables (ON)/disables (OFF) BONJOUR.

Returns the network I/F related settings to their default.

PRODUCT DESCRIPTION Operation Panel 26

EPSON Stylus Pro 3800/3800C/3850 Revision A

 PG settings list

The table below lists the platen gap amounts settable with the printer driver, control panel, and media table.

Table 1-10. PG Setting List

Printer Driver

Paper Thickness

setting

No setting

0.0 to 0.8mm

0.9mm to 1.5mm -- -- 3.5

Control Panel

Setting

NARROW

STANDARD

WIDE

WIDER

WIDEST

Media Table or

Printer Driver

PG Setting

Minimum 0.9

Small 0.9

Middle 1.2

Large 1.5

Minimum 0.9

Small 1.2

Middle 1.5

Large 2.1

Minimum 1.2

Small 1.5

Middle 2.1

Large 2.1

Minimum 1.5

Small 2.1

Middle 2.1

Large 2.1

Minimum 2.1

Small 2.1

Middle 2.1

Large 2.1

PG amount (mm)

 Firmware version indication

The table below explains the meaning of the “o0XXXX-xx.xx.IBC” (firmware version).

Table 1-11. Firmware Version Indication

Item Explanation

XXXX The version of the firmware installed on the printer.

xx.xx The version of the network firmware.

I A code assigned by product. The code of the printer is “8”.

A code assigned to each printer. Special version is assigned to “0” (zero).

When the business system functions are enabled, the printer settings are indicated in hexadecimal (1 to F).

bit0: Graphic printing control function.

0: Disabled 1: Enabled

bit1: Credit function

0: Disabled

bit2: Credit counter

0: The credit function is disabled or the counter is “0” (zero). 1:

The credit function is enabled and the counter is

bit3: Reserved

Shows the custom number when the custom operation has been set using the special setting menu. “0” appears when such operation is not set.

1 or more.

PRODUCT DESCRIPTION Operation Panel 27

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.6.7 Maintenance Mode

HOW TO START & QUIT

 Starting Method

Turn the printer On while holding down the Cancel/Reset button.

 Quitting Method

Turn the printer Off.

MAINTENANCE MODE MENU LIST

Menu Item

LANGUAGE

UNIT

DEFAULT PANEL EXECUTE

Settings

= default)

(Bold

ENGLISH

JAPANESE

FRENCH

GERMAN

ITALIAN

PORTUGUE

SPANISH

DUTCH

METRIC

FEET/INCH

Explanation

Select the language to be displayed on the LCD panel.

Select a unit of length to be used for various length information.

All settings made in the following menus are returned to their default.

 PRINTER SETUP menu  PRINTER STATUS menu  CUSTOM PAPER menu  HEAD ALIGNMENT menu  NETWORK SETUP menu

PRODUCT DESCRIPTION Operation Panel 28

EPSON Stylus Pro 3800/3800C/3850 Revision A

1.6.8 Error/Warning Statuses Displayed/Indicated on/by LCD/LED

No Error/Warning Status

1 FATAL ERROR (Service Call No. is displayed) Error --

FATAL ERROR (1st time: Restart Request is displayed/ 2nd time and later: Service Call

No. is displayed.)

FATAL ERROR

(Always Restart Request is displayed.)

FATAL ERROR

(CR locked)

PAPER JAM

(Fatal Error)

6 Timer IC Reset/Clearing NVRAM (Please wait) -- -- PLEASE WAIT Light Light Light

7 Updating F/W (at normal startup) -- -- UPDATING FIRMWARE Blink Off Off

8 Canceling (including Job Cancel) -- --

9 No Maintenance Cartridge Error

10 Maintenance Cartridge Cover Open Error

Paper Feed Failed

Reset

Board Paper Feed Failed

Reset

Error or Warning

Error --

Illustration

on LCD

Message on LCD

SERVICE CALL ERROR NNNN PLEASE CONTACT TO THE REPAIR CENTER

PRINTER ERROR RESTART THE PRINTER

CARRIAGE LOCKED RELEASE THE CARRIAGE LOCK

PAPER JAM CLEAR JAMMED PAPER

SEE PRINTER GUIDE FOR INSTRUCTIONS

RESETTING PLEASE WAIT

NO MAINTENANCE CART. INSTALL THE MAINTENANCE CARTRIDGE.

MAINTENANCE COVER OPEN CLOSE THE MAINTENANCE COVER

PAPER FEED ERROR REMOVE PAPER AND LOAD PAPER CORRECTLY

PAPER FEED ERROR LOAD PAPER CORRECTLY AND PRESS PAPER/FEED BUTTON

Power Paper Status Ink Status

Light Blink Blink

Light Light Light

Light Off Light

Light Light Off

LED

PRODUCT DESCRIPTION Operation Panel 29

EPSON Stylus Pro 3800/3800C/3850 Revision A

No Error/Warning Status

Paper Jam Discharge Failed

Remove Paper

14 Waiting Cartridge Cover open -- --

15 Cartridge Cover Cannot Be Opened Error --

16 Detecting Ink Cartridge (Cover close -> READY) -- -- PLEASE WAIT Light Off Off

17 Maintenance Cartridge Insufficient Error

18 Ink Cartridge Insufficient Error --

19 Maintenance Cartridge CSIC Read/Write Error Error

20 Not GENUINE maintenance cartridge error Error --

21 Not GENUINE maintenance cartridge error (Confirmation 1) Error --

22 Not GENUINE maintenance cartridge error (Confirmation 2) Error --

23 Maintenance Cartridge End Error

Error or Warning

Error --

Illustration

on LCD

Message on LCD

PAPER JAM REMOVE PAPER

RELEASING THE INK COVER LOCK

CANNOT OPEN COVER IS THERE ANYTHING ON THE PRINTER? PRESS THE UP BUTTON

MAINTENANCE CARTRIDGE NEARLY FULL REPLACE THE CARTRIDGE

NOT ENOUGH INK REPLACE INK CARTRIDGE WITH A NEW ONE

MAINTENANCE CARTRIDGE ERROR REPLACE THE CARTRIDGE

MAINTENANCE PLEASE USE GENUINE EPSON CARTRIDGES

MAINTENANCE NON-GENUINE CARTRIDGE! MAY NOT PERFORM AT OPTIMUM. CONTINUE? <YES NO>

MAINTENANCE THIS MAY VOID EPSON’S WARRANTY. DO YOU ACCEPT THIS? <ACCEPT DECLINE>

MAINTENANCE CARTRIDGE FULL REPLACE THE CARTRIDGE

Power Paper Status Ink Status

Light Light Off

Blink Off Off

Light Off Blink

Light Off Light

LED

PRODUCT DESCRIPTION Operation Panel 30

EPSON Stylus Pro 3800/3800C/3850 Revision A

No Error/Warning Status

24 Board paper removal error Error

Board Paper Tray Open Error

The tray was opened during operation

Board tray open error

Set paper

Board Tray Close Error

The tray was opened during operation

Board Tray Close Error

Paper needs to be removed

29 No Ink Cartridge Error --

30 Ink Cartridge CSIC Read/Write Error Error --

31 Not GENUINE ink cartridge error Error --

32 Not GENUINE ink cartridge error (Confirmation 1) Error --

33 Not GENUINE ink cartridge error (Confirmation 2) Error --

34 Ink End Error --

Error or Warning

Error

Illustration

on LCD

Message on LCD

FRONT FEED SLOT OPEN PRESS THE DOWN BUTTON AND REMOVE PAPER

FRONT FEED SLOT OPEN CLOSE THE FRONT MANUAL FEED SLOT

FRONT FEED SLOT OPEN LOAD MEDIA AND PRESS THE DOWN BUTTON

FRONT SLOT CLOSED OPEN THE FRONT MANUAL FEED SLOT

NO INK CARTRIDGE INSTALL INK CARTRIDGE

INK CARTRIDGE ERROR REPLACE CARTRIDGE

INK CARTRIDGE PLEASE USE GENUINE EPSON INK CARTRIDGE

INK CARTRIDGE NON-GENUINE CARTRIDGE! MAY NOT PERFORM AT OPTIMUM. CONTINUE? <YES NO>

INK CARTRIDGE THIS MAY VOID EPSON’S WARRANTY. DO YOU ACCEPT THIS? <ACCEPT DECLINE>

INK CARTRIDGE REPLACE INK CARTRIDGE

LED

Power Paper Status Ink Status

Light Light Off

Light Off Light

PRODUCT DESCRIPTION Operation Panel 31

EPSON Stylus Pro 3800/3800C/3850 Revision A

No Error/Warning Status

35 Ink Cover Open Error --

36 Ink Initial Refilling -- --

37 K Ink Changing -- --

38 Cleaning -- --

39 Command Error Error --

40 Paper Skew Error Error

41 Paper Identification Error (PW Inspection) Error

42 Borderless Printing Error Error --

Paper Discharge Failed Error (Cut Sheet Paper)

Remove paper by paper discharge key

44 Blank Sheet Discharge/Multifeed Error Error

45 Paper removal -- --

46 No Paper Error --

Error or Warning

Error

Illustration

on LCD

Message on LCD

INK COVER OPEN CLOSE THE INK COVER

CHARGING INK

NN%

BLACK INK CHANGING MATTE -> PHOTO NN%

CLEANING PLEASE WAIT

COMMAND_ERROR CHECK_DRIVER_SETTINGS

PAPER SKEW PRESS THE DOWN BUTTON. LOAD PAPER CORRECTLY

PAPER ERROR PRESS THE DOWN BUTTON. LOAD PAPER CORRECTLY

BORDERLESS ERROR PRESS_THE DOWN BUTTON LOAD THE CORRECT SIZE PAPER

PAPER EJECT_ERROR PRESS THE DOWN_BUTTON AND REMOVE PAPER

PAPER FEED ERROR LOAD PAPER CORRECTLY PRESS THE DOWN BUTTON

PAPER REMOVE REMOVE PAPER FROM THE REAR

PAPER ERROR LOAD PAPER

LED

Power Paper Status Ink Status

Light Off Light

Blink Off Off

Blink Blink Blink

Blink Off Light

Light Blink Off

Light Light Off

PRODUCT DESCRIPTION Operation Panel 32

EPSON Stylus Pro 3800/3800C/3850 Revision A

No Error/Warning Status

47 Paper Size Check Error Error --

48 Ink Mark Sensor Sensitivity Control Error Error --

Ink Mark Sensor Adjusted Value Error Adjusted value cannot be set

Adjusted range over

Nozzle Check Error

Nozzle cannot be recovered

Cleaning Error

W/ board paper Before printing when PW inspection is OFF

52 During Initialization -- -- PLEASE WAIT Blink Off Off

53 During Sequence -- -- PLEASE WAIT Blink Off Off

64 Paper Initial Trigger Waiting Status (No waiting time) -- -- READY Light Off Off

55 Paper Initial Trigger Waiting Status (Auto loading) -- -- READY Light Off Off

56 Paper Setting Error Error --

57 Internal Pattern Printing -- -- PRINTING Blink Off Off

58 Setting Panel Error -- SETTING... Light Off Off

59 Initializing Paper -- -- PLEASE WAIT Light Off Off

60 Ink Drying -- --

61 Maintenance Call Warning Warning --

62 Ink Low Warning Warning -- INK LOW Light Off Blink

Error or Warning

Error --

Error

Illustration

on LCD

Message on LCD

PAPER SIZE ERROR LOAD THE CORRECT SIZE PAPER

PAPER SENSOR ERROR PRESS THE BUTTON LOAD DIFFERENT PAPER

PAPER_SENSOR_ERROR PRESS THE BUTTON LOAD THE CORRECT PAPER

CLEANING ERROR PRESS THE CANCEL/RESET BUTTON

CLEANING_ERROR PRESS THE DOWN BUTTON AND REMOVE THICK PAPER

PAPER SETTING ERROR CHECK PAPER SOURCE_IN THE DRIVER SETTINGS AND LOAD PAPER CORRECTLY

INK_DRYING

NNNN_SEC

MAINTENANCE_REQUEST NNNN

Power Paper Status Ink Status

Light Blink Off

Light Blink Blink

Light Light Off

Blink Off Off

Light Special Blink Off

LED

PRODUCT DESCRIPTION Operation Panel 33

EPSON Stylus Pro 3800/3800C/3850 Revision A

No Error/Warning Status

63 Maintenance Cartridge Cover Open Warning Warning

64 Maintenance Cartridge Low Warning --

65 Printing -- -- PRINTING Blink Off Off

66 Analyzing -- -- READY Blink Off Off

67 Printable (Idling) -- --

Error or Warning

Illustration

on LCD

Message on LCD

MAINTENANCE COVER OPEN CLOSE THE MAINTENANCE COVER

MAINTENANCE CARTRIDGE IS NEARLY FULL

READY

PHOTO_BLACK

Power Paper Status Ink Status

Light Off Blink

Light Light Light

LED

PRODUCT DESCRIPTION Operation Panel 34

OPERATING PRINCIPLES

CHAPTER

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.1 Overview

OPERATING PRINCIPLES OVERVIEW

2.6 Paper Feed Mechanism

Explains how paper is fed and transported.

• PF Motor

•ASF

• PE Sensor

• Paper Eject Tray

2.5 Carriage Mechanism

Explains how to move the Carriage Unit.

• CR Motor

• CR Scale

• Timing Belt

• CR Encoder

2.2 Print Mechanism

Describes basic specifications of the print mechanism (print head).

• Print Head

2.4 Cleaning Mechanism

2.3 Ink Supply Mechanism

Explains how the ink is supplied from the cartridges to the print mechanism.

• Ink Cartridge

• Ink Cartridge Holder

• Damper

•Pressure Pump

• Ink change system

Explains how the print head is cleaned.

• Pump Cap Unit

OPERATING PRINCIPLES Overview 36

EPSON Stylus Pro 3800/3800C/3850 Revision A

MAIN COMPONENT

 Electric Circuit Boards

Table 2-1. List of Electric Circuit Boards

Fig. Name Function

 Communications with host computer  Receive data processing  Engine control

Main board (C635 MAIN)

Power supply board

(C635 PSB/PSE)

Panel board (C635 PNL)

Sub board (C635 SUB)

 Saves compensation values and various counter

information.

 Generates power voltages used by the logic circuits

from 42 V supplied from the power supply board.

 Generates power system power voltage 42 V from

the AC power supply

 Printer operations, various settings  Shows printer status and various setting values on

the LCD.

 Indicates printer status by the LED.

Relays connections between the main board and the following parts:

 PG sensor  Ink mark sensor  PW sensor  Ink change sensor  CR encoder  Ink change motor

Figure 2-1. Layout of Electric Circuit Boards

OPERATING PRINCIPLES Overview 37

EPSON Stylus Pro 3800/3800C/3850 Revision A

 Motors/Solenoid

Fig. Name

Release motor

PF motor

Ink cover unlock solenoid

Pressure pump motor

Ink change motor

Pump motor

CR motor

APG motor

ASF motor

Table 2-2. List of Motors/Solenoid

Driven Parts

Specifications

Release roller

Type: DC motor Voltage:42 VDC ± 5 %

 PF roller  Paper eject roller A  Paper eject roller B

Type: DC motor Voltage:42 VDC ± 5 %

Ink cover unlock mechanism

Type: DC solenoid Voltage:42 VDC

Pressure pump

Type: DC motor Voltage:42 VDC ± 5 %

Ink change system

Type: DC motor Voltage:42 VDC

Pump cap unit

Type: 4-phase 48-pole PM stepping motor Voltage:42 VDC ± 5 %

Carriage unit

Type: DC motor Voltage:42 VDC

Platen gap mechanism

Type: 4-phase 96-pole PM stepping motor Voltage:42 VDC

ASF unit

Type: 4-phase 96-pole PM stepping motor Voltage:42 VDC ± 5 %

± 5 %

Figure 2-2. Layout of Motors/Solenoid

OPERATING PRINCIPLES Overview 38

EPSON Stylus Pro 3800/3800C/3850 Revision A

 Sensors/Encoders/CSIC

Table 2-3. List of Sensors/Encoders/CSIC

Fig. Name Function Specifications

ASF phase sensor

Release sensor

PF encoder Reads the PF scale.

Ink cover sensor

Pressure pump home

sensor

Pressure sensor

Board paper tray open

sensor

Ink cartridge sensor

PG origin sensor

Ink change sensor

Ink mark sensor

Maintenance cartridge

cover sensor

PW sensor

Maintenance cartridge

sensor

Detects the ASF origin position.

Detects an open/closed state of the release roller.

Detects an open/closed state of the ink cover.

Detects the home position of the pressure pump.

Detects the state of pressurization by the pressure pump.

Detects the position of the board paper tray.

CSIC that stores ink cartridge information

Detects the origin position of the platen gap.

Detects the state of the black ink switch lever.

 Auto Bi-D adjustment  Auto  Auto nozzle check

Detects an open/closed state of the maintenance cartridge cover.

 Paper leading edge

detection

 Paper width detection

CSIC that stores maintenance cartridge information.

Uni-D

adjustment

Type: Transmissive photo interrupter Voltage: 3.3 VDC

Type: Linear encoder (180LPI) Voltage: 3.3 VDC

Type: Mechanical contact Voltage: 3.3 VDC ± 5 %

Type: Mechanical Contact Voltage: 3.3 VDC

Type: Reflective photo interrupter Voltage: 3.3 VDC

Comparator input Type:Mechanical Contact

Voltage: 3.3 VDC ± 5 % Type: CSIC

Voltage: 3.3 VDC ± 5 %

Type: Transmissive photo interrupter Voltage: 3.3 VDC

Type: Mechanical contact Voltage: 3.3 VDC

Type: Voltage: 3.3 VDC ± 5 %, LED: 5 V

Type: Mechanical contact Voltage: 3.3 VDC ± 5 %

Type: Reflective photo interrupter Voltage: 3.3 VDC ± 5 %, LED: 3.3 V

Type: CSIC Voltage: 3.3 VDC ± 5 %

Diffuse reflective photo interrupter

± 5 %

± 5 %,

± 5 %

Table 2-3. List of Sensors/Encoders/CSIC

Fig. Name Function Specifications

PE sensor

CR encoder Reads the CR scale.

Detects a rear edge of paper.

Type: Transmissive photo interrupter Voltage: 3.3 VDC

Type: Linear Encoder (180LPI) Voltage: 3.3 VDC

± 5 %

Figure 2-3. Layout of Sensors/Encoders/CSIC

OPERATING PRINCIPLES Overview 39

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.2 Print Mechanism

This section explains the basic specifications of the print head.

NOZZLE CONFIGURATION AND COLORS

This printer is equipped with an MACH print head, which employs 180 nozzles per color. The printer ejects nine different colors of ink through the eight rows of nozzles. One of the rows is shared by Photo Black and Matte Black inks. The nozzle configuration as seen from behind the print head is shown below.

 Printing method: On-demand ink-jet

 Nozzle configuration: 180 nozzles x 8 rows = 1440 nozzles

Table 2-4. Nozzle Rows and Colors

Nozzle Row Color

Photo Black Matt Black

Magenta

Cyan

Yellow

Light Light Black

Light Black

Light Cyan

Light Magenta

DRIVE WAVEFORMS

The following four drive waveforms are used to create four print modes.

Table 2-5. Print Modes (Drive Waveforms)

Paper Feed Direction

Waveform

Name

VSD1 10.08 360 x 360 280

VSD1 10.08

VSD2 10.08 1440 x 720 280

VSD3 20.16 2880 x 1440 280

Drive Frequency

(kHz)

Print Resolution

(dpi)

720 x 360 720 x 720

CR Speed

(cps)

280

Carriage Moving Direction

Figure 2-4. Nozzle Configuration

OPERATING PRINCIPLES Print Mechanism 40

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.3 Ink Supply Mechanism

2.3.1 Ink Flow Path

The ink flow path is shown below.

Ink Selector

Dumper

2.3.2 Ink Pressurizing Mechanism

This printer employs an ink pressurizing mechanism to stably supply ink in the ink cartridge (ink pack) to the print head. This ink pressurizing mechanism consists of a pressure pump unit installed in an ink supply mechanism and tightly-sealed ink cartridges. Air pumped into the tightly-sealed ink cartridge from the pressure pump unit squashes the ink pack in the cartridge, causing the ink inside the pack to be transferred to the print head.

Ink Cartridge

To Print Head

Air flow path

Ink Cartridge

Pressure Pump

Pressure Sensor Unit

Ink flow path

Figure 2-6. Ink Pressurizing Mechanism

Print Head

Figure 2-5. Ink Flow Path

OPERATING PRINCIPLES Ink Supply Mechanism 41

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.3.2.1 Pressure Pump Unit Mechanism

 Accordion unit/Pressure pump motor/Pressure pump home sensor

The accordion unit intakes air and applies pressure by the rotating drive of the pressure pump motor, and pumps air into the ink cartridges. The pressure pump home sensor detects the position of the accordion unit.

Pressure pump motor

Applying pressure

CW rotation of the clutch closes the valve and applies pressure to send air toward the ink cartridges.

Valve

Clutch

Combination Gear, 18, 39

CW rotation CCW rotation

Applying

pressure

Spur Gear, 24.5

Accordion Unit

Spur Gear, 22

Regulator

Reducing

pressure

Clutch

Figure 2-7. Drive Transmission Path

 Pressure sensor unit

A reflective photo sensor, which turns on when the air pressure reaches the predetermined level, controls the amount of pressure. When the air pressure reaches the predetermined level, film on the air damper expands and activates the reflective plate causing the sensor to receive light, and the pressurizing state is detected.

 Regulator

Stops applying pressure when the power is off or during stand-by. Activated by the pressure pump motor through the clutch. The regulator opens the valve to reduce pressure.

Reducing pressure

CCW rotation of the clutch opens the valve and reduces pressure. When the air pressure reaches the predetermined level, the valve opens as the pressure overcomes the tension of the spring that presses the valve.

Pressure Pump

Home Sensor

Spur Gear, 24.5

Accordion Unit

Sensor

Combination Gear 18, 3.9

Clutch

Regulator

Spur Gear, 22

Pressure

Pump Motor

Air Damper Film

Pressure Sensor Unit

Figure 2-8. Pressure Pump Unit

OPERATING PRINCIPLES Ink Supply Mechanism 42

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.3.3 Ink Change System

This printer has automatic ink change system that switches black ink between Photo Black and Matte Black. The cartridge holder of this printer keeps both Photo Black and Matte Black ink cartridges. Each of the black ink cartridges has its own ink supply tube connected to their respective damper. Both black inks are supplied into the damper, and one of them is supplied to the print head at one time by means of the ink selector that changes the ink flow path. Ink change system consists of an ink change motor, selection cam, selection lever, and ink change sensor. The following describes the mechanism.

1. Drive of the ink change motor rotates the selection cam. Ink change sensor detects the rotation angle of the cam.

Changing to Photo Black

Selection

Cam

Selection

Lever

Changing to Matte Black

2. The selection lever moves as the selection cam rotates.

3. The protruded end of the selection lever pushes the selection pin, and the pin changes the black ink flow path inside the damper.

Ink Change Motor

Ink Change Sensor

Selection Cam

Selection Lever

Selection pin

Pressure of Selection Lever

Matte Black

Photo Black

Matt Black

Ink Path

Figure 2-9. Ink Change System

Figure 2-10. Changing Black Ink Path

OPERATING PRINCIPLES Ink Supply Mechanism 43

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.4 Cleaning Mechanism

The cleaning mechanism consists of a pump cap unit and a waste ink pads (maintenance cartridge).

 Pump Motor

The pump motor drives the cap unit, pump, head cleaner, and carriage lock. The table below shows the operation of each mechanism depending on the rotational direction of the pump motor.

Table 2-6. Pump Motor Functions

Mechanism CCW * CW *

Cap Unit Open (Uncapping) Close (Capping)

Pump Pump release Pump suction

Head Cleaner

Wiper reset

(back to the home)

(moves to the wiping position)

Carriage Lock Unlock Lock

Note * : The rotation direction as seen from the top of the unit.

Pump Motor

Combination Gear, 15.5, 9.5

Wiper set

 Cap Unit/Carriage Lock

The pump motor moves the cap unit up and down. The cap unit goes up to seal the print head during cleaning and stand-by. Carriage lock operates in synchronization with the cap unit. When the carriage unit moves to the home position, carriage lock moves up together with the cap unit and lock the carriage unit.

Cap Unit

Carriage Lock

Cap unit moves up

(capped, locked)

Cap unit moves down (uncapped, unlocked)

Spur Gear, 13

Pinion Gear

(Pump Motor)

Spur Gear, 26.5

Spur Gear, 13

Spur Gear, 21.5

Intermittent Gear, 21.5

Combination Gear, 16, 11.5

Combination Gear, 13.5, 10

Head Cleaner

Pump

Cap Unit

Carriage Lock

Spur Gear, 21.5

Intermittent

Gear, 21.5

Combination Gear, 15.5, 9.5

Figure 2-12. Cap Unit/Carriage Lock Mechanism

Spur Gear, 26.5

Figure 2-11. Drive Transmission Path

OPERATING PRINCIPLES Cleaning Mechanism 44

EPSON Stylus Pro 3800/3800C/3850 Revision A

 Pump Unit

The ink is absorbed from the head nozzles. The sucked waste ink is conveyed to the waste ink pad through the tube. The CW rotation of the pump motor rotates the conveyance roller. The roller rotates pressing the tube to convey the waste ink from the cap unit to the waste ink pad. The CCW rotation of the pump motor moves the conveyance roller away from the pressing position.

Head Nozzle

Conveyance Roller

To Waste Ink Pad

 Head Cleaner

The head cleaner wipes off ink, dirt or the like from the surface of the head nozzles. The CW rotation of the pump motor moves the head cleaner to the wiping position.

Head Cleaner

Combination Gear, 13.5, 10

Intermittent Gear, 21.5

Combination Gear, 13.5, 10

Combination Gear, 16, 11.5

Spur Gear,13

Spur Gear, 26.5

Figure 2-13. Pump Unit Mechanism

Combination Gear,15.5, 9.5

Spur Gear, 21.5

Pinion Gear

(Pump Motor)

Figure 2-14. Head Cleaner Mechanism

OPERATING PRINCIPLES Cleaning Mechanism 45

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.5 Carriage Mechanism

The carriage mechanism consists of a carriage movement mechanism, platen gap adjustment mechanism, and carriage lock mechanism. For explanation about the carriage lock mechanism, refer to Cap Unit/Carriage Lock (p.44).

CR Scale

2.5.1 Carriage Movement Mechanism

Carriage movement mechanism consists of a carriage unit, CR motor, timing belt, carriage guide shaft, CR scale, and CR encoder. Rotational drive of the CR motor is transmitted to the carriage unit through the timing belt, and the carriage unit moves left and right along the carriage guide shaft. The CR encoder installed on the back of the carriage unit reads the jagged surface of the CR scale and sends the read value to the main board. Position and moving speed of the carriage unit are controlled based on the read value.

Carriage Unit

CR Scale

CR Encoder

CR Timing Belt

CR Motor

Carriage Guide Shaft

Figure 2-15. Carriage Movement Mechanism

OPERATING PRINCIPLES Carriage Mechanism 46

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.5.2 Platen Gap Adjustment Mechanism

Platen gap adjustment mechanism consists of an APG motor, carriage unit, and PG sensor. The carriage unit is equipped with two carriages; main carriage that moves horizontally to the carriage guide shaft, and the sub carriage that moves vertically to the main carriage. When the carriage unit moves to the PG adjustment position and the APG motor starts to rotate, the oval cam turns to move the sub carriage vertically and change the platen gap amount. Light-shielding plate with a cutout is installed at the end of the shaft to which the cam is attached, and moves together with the cam. A transmissive photo interrupter sensor (PG sensor) detects the cutout, determines the detected position as the origin, and changes the platen gap according to the number of pulses from the origin.

APG Motor

Combination Gear, 20, 34.4

Combination Gear, 13.6, 31.2

Spur Gear, 29.6

Spur Gear, 34.4

PG Shaft

Cam

Table 2-7. PG Positions in Operations

Operation PG

Detecting paper width (ASF feeding, Rear/Front manual feeding)

Detecting paper width (ASF feeding after receiving data)

Switch PG according to the print setting.

Starts printing Switch PG according to the print setting.

At power OFF 1.2

PG Sensor

Lightshielding Plate

Cutout

Cam

Sub Carriage

Spur Gear, 34.4

3.5

Main Carriage

APG Motor

Combination Gear,20, 34.4

Combination Gear,13.6, 31.2

Spur Gear, 29.6

Sub Carriage

Cam

Figure 2-16. Drive Transmission Path

The relation between the printer status and the platen gap amount is described below.

Table 2-7. PG Positions in Operations

Operation PG

At power ON 1.2

Cleaning starts 1.5

Narrow Wide

Capping Capping is done in the current PG.

Board paper tray is open 3.5

Figure 2-17. Platen Gap Adjustment Mechanism

OPERATING PRINCIPLES Carriage Mechanism 47

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.6 Paper Feed Mechanism

2.6.1 Paper Feed Path

The printer provides two manual paper feed paths in addition to the ASF to support thicker paper.

Paper Feeding Thickness Type

ASF (Auto Sheet Feeder) 0.08 to 0.27 mm See 1.3.3 Paper Support (p.15)

Rear Manual Bypass 0.29 to 0.5 mm Fine Art Paper

Front Manual Bypass 1.2 to 1.5 mm Heavy paper like cardboard

The following figures show the paper feed paths.

Figure 2-19. Paper Path of Front Manual Bypass

Figure 2-18. Paper Path of ASF & Rear Manual Bypass

OPERATING PRINCIPLES Paper Feed Mechanism 48

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.6.2 Paper Loading Mechanism

ASF (AUTO SHEET FEEDER)

The ASF, whose driving source is an ASF motor, consists of a LD roller, LD roller shaft, ASF sensor, hopper, and paper anti-slip tab. The cams on both ends of the LD roller shaft activate the hopper and the paper anti-slip tab. The ASF sensor (photo interrupter sensor) controls the rotational position of the LD roller shaft by detecting the light-shielding plate installed on the shaft. Paper loading operation from the ASF is described below:

1. Start of the paper loading operation The ASF motor moves to rotate the LD roller shaft.

2. Feeding paper to the paper loading position

2-1. The LD roller shaft rotates to release the lever that presses the paper anti-

slip tab, and the tabs go down.

Hopper

ASF Motor

2-2. The LD roller shaft rotates to release the hopper actuating the cam that

presses the hopper, and the hopper moves up by the tension of the spring.

Hopper

Hopper Actuating Cam

Standby

LD Roller

Raising

Figure 2-21. Raising the Hopper

3. Picking-up paper The LD roller shaft rotates to feed a single sheet of paper into the printer with a LD roller.

Paper

Hopper

LD Roller

Lever

Paper Anti-slipTab

Figure 2-20. Lowering the Paper Anti-slip Tab

LD Roller Shaft

Separation Pad

Retard Roller

Figure 2-22. Picking-up Paper

OPERATING PRINCIPLES Paper Feed Mechanism 49

EPSON Stylus Pro 3800/3800C/3850 Revision A

4. Pressing the hopper The hopper cam on the LD roller shaft presses the hopper and remaining paper on the tray is moved away from the feeding position.

5. Moving the paper anti-slip tabs upward The LD roller shaft rotates to actuate the lever on the shaft and move the paper anti-slip tabs upward. The tabs prevent the paper from slipping into the paper feeding section.

6. Transporting paper in the printer Paper fed into the printer is transported by the PF roller.

7. Releasing the back end of paper When the hopper actuating cam presses the hopper further in synchronization with the rotation of the LD roller, left and right paper guides that regulate the paper width are extended releasing the back end of paper.

Hopper

groove

Actuating Cam

8. Standing-by The hopper returns to the stand-by position and ends the paper loading operation.

Position Detection Section

ASF Sensor

Paper Anti-slip Tab

LD Roller Shaft

LD Roller

Hopper

Combination

Gear, 58.22

ASF Motor

Retard Roller

Spur Gear,

Shaft, LD

Figure 2-24. ASF Drive Mechanism

LD Roller Shaft

Paper Holding State Paper Releasing State

Figure 2-23. Releasing the Back End of Paper

LD Roller

ASF Motor

Combination Gear, 58,22

Spur Gear, Shaft, LD

LD Roller Shaft

Paper Anti-slip Tab

Hopper Assy

Figure 2-25. ASF Drive Transmission Path

OPERATING PRINCIPLES Paper Feed Mechanism 50

EPSON Stylus Pro 3800/3800C/3850 Revision A

REAR MANUAL BYPASS

When the prescribed time has passed since a paper was supplied from the feeder on the rear of the printer and the PE sensor detected the paper, the PF roller starts to transport the paper.

FRONT MANUAL BYPASS

The status of the board paper tray that is used for the front manual feeding is detected by the leaf switch. The leaf switch is moved by the Board Paper Guide Cam which moves together with the board paper tray, and according to the switch position, the board paper tray status is detected.

Board Paper Tray

Leaf Switch

Board Paper Guide Cam

Tray Closed

Tray Open

Figure 2-26. Board Paper Tray Open Sensor

OPERATING PRINCIPLES Paper Feed Mechanism 51

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.6.3 Paper Feed Mechanism

The paper feed mechanism mainly consists of a Release mechanism, the PF Motor, and the feed rollers.

RELEASE MECHANISM

Release mechanism consists of a release unit (including a release motor, release sensor, and combination gear), paper guide upper assy that presses papers, and paper guide release shaft that activates the paper guide upper assy. Rotational drive of the release motor activates the paper guide release shaft through the combination gear. When the release lever of the paper guide release shaft presses down the back end of the paper guide upper assy, the paper guide upper assy separates from the PF roller. When the release motor rotates reversely, the paper guide upper assy makes contact with the PF roller. The release sensor installed in the release unit and the light-shielding plate detects the contact condition between the paper guide upper assy and the PF roller.

Combination Gear, 9.6, 22

Combination Gear, 8, 22

Combination Gear, 8, 22.986

Combination Gear, 22, 32.4

Light-shielding Plate

Release Motor

Spur Gear, 22

Spur Gear, 20.4

Spur Gear, 22.B

Paper Guide Release Shaft

Paper Guide Upper Assy

Figure 2-27. Drive Transmission Path

OPERATING PRINCIPLES Paper Feed Mechanism 52

EPSON Stylus Pro 3800/3800C/3850 Revision A

Paper Guide

Upper Assy

Spur Gear, 22

Combination

Gear, 9.6, 22

Combination

Gear, 8, 22.986

Release Sensor

Light-shielding Plate

Combination Gear, 22, 32.4

Spur Gear, 22,B

Release Motor

Paper Guide Release Shaft

Combination Gear, 8, 22

PF Roller

Spur Gear, 20.4

Paper Guide Upper Assy

Holding status Releasing status

Figure 2-28. Release Mechanism

OPERATING PRINCIPLES Paper Feed Mechanism 53

EPSON Stylus Pro 3800/3800C/3850 Revision A

PAPER FEED MECHANISM

Paper feed mechanism consists of a PF motor, PF scale, PF encoder, PF roller, front and rear paper eject rollers, and star wheels. The mechanism transports papers fed from the feeders and ejects them from the front of the printer.

PF Motor

PF Timing Belt

Combination Gear, PF, Drive

Spur Gear, 31.5

Spur Gear, 68

Front Paper Eject Roller

Spur Gear, 14.4

Rear Paper Eject Roller

Figure 2-29. Drive Transmission Path

PF Motor

OPERATING PRINCIPLES Paper Feed Mechanism 54

EPSON Stylus Pro 3800/3800C/3850 Revision A

Frame, EJ Assy

PF Roller

Paper

Star Wheel

Front Paper Eject Roller

Rear Paper Eject Roller

Spur Gear, 14.4

PF Encoder

Spur Gear, 68

Spur Gear, 31.5

PF Motor

PF Timing Belt

PF Scale

Combination Gear, PF, Drive

Figure 2-30. Paper Feed Mechanism

OPERATING PRINCIPLES Paper Feed Mechanism 55

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.7 Ink Mark Sensor

This printer is equipped with the ink mark sensor functioning as multi sensors. The sensor, located on the bottom of the carriage unit, is a diffuse reflective photointerruptor that is comprised of a light emitting part (white LED) and a light receiving part (photoreceiver). The white LED emits light against the paper or dedicated print pattern printed on paper and the photoreceiver reads the reflected light. According to the reflected light read by the receiver, the printer calculates correction values to perform proper corrective actions. The Ink mark sensor is used for the following adjustments.

 Auto Bi-D Adjustment

The sensor scans predetermined patterns printed for the adjustment and detects the highest density pattern among them. According to the detected result, the printer calculates Bi-D correction values automatically.

 Auto Uni-D Adjustment

 Auto Nozzle Check

The sensor scans a nozzle check pattern. The pattern is printed with the all nozzles and each nozzle prints one block. If there is a clogged nozzle, the corresponding block will not be printed and detected by the sensor, and a head cleaning is performed automatically.

OPERATING PRINCIPLES Ink Mark Sensor 56

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.8 Other Mechanisms

INK COVER OPEN-CLOSE MECHANISM

To keep the ink cartridges from being removed during printing, opening/closing of the ink cover is electrically regulated. Opening/closing of the cover is controlled by the lock mechanism that takes advantage of an electromagnetic solenoid, and the cover can only be opened by means of the operation panel. When the operation to open the cover is performed, the solenoid is energized and the lock is released. The solenoid unit is equipped with a switch sensor that detects opening/closing state of the cover.

Ink Cover Closed

Solenoid

Ink Cover

Ink Cover SensorSolenoid Unit

MAINTENANCE CARTRIDGE COVER OPEN DETECTION

To keep the maintenance cartridge from being removed during printing, a switch sensor detects opening/closing state of the cover that stores the maintenance cartridge.

Maintenance Cartridge Cover Sensor

Maintenance Cartridge Cover

Cover Closed Cover Open

Figure 2-32. Operation of Maintenance Cartridge Cover

Ink Cover Open

Figure 2-31. Ink Holder Cover Open/Close Mechanism

OPERATING PRINCIPLES Other Mechanisms 57

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.9 Outline of Circuit Boards

2.9.1 Main Board

This section provides a summary of the main board (C653MAIN) that controls the whole of the printer system.

 Explanation of main elements on C635 MAIN Board

Table 2-8. Main Elements

Model Number Location Function

E01A68CB IC15 Customized ASIC

FlashROM IC4

DDR-SDRAM IC3/IC19

RTC9824 IC9

E09A54RA IC11 Printer driver

A6628SEDT IC7/IC13 Motor driver

A6627STPT IC6 Motor driver

BCM5980A2KFBG IC10

Program storage

• Capacity: 16Mbit

Various buffers, work areas

• Capacity: 256Mbit

• Number of pieces: two

RTC complex circuit (Reset, timer, EEPROM complex IC)

Ethernet 10/100BASE-TX circuit

• Flash ROM (32Mbit), SDRAM (64Mbit x 2) installed

 Circuit block diagram

DDR-SDRAM

(IC3)

DDR-SDRAM

(IC19)

Flash ROM

(IC4)

RTC9824

(IC9)

CN67

USB I/F 2.0

Flash ROM

(IC1)

CN102

Network

Ethenet 10/100BASE-TX

BCM5980A2KFBG(IC10)

SDRAM

(IC5)

SDRAM

(IC8)

Figure 2-33. C635 MAIN Board Block Diagram

Custom

ASIC

E01A68C

(IC15)

A6628 (IC13)

A6628 (IC7)

A6627 (IC6)

Custom

ASIC

E09A54RA

(IC11㧕

CN40

CR Motor

CN43

ASF Motor

CN44

Ink Change Motor

CN45

Pressurizing Pump Motor

CN57

Release Motor

CN58

Pump Motor

CN41

PF Motor

CN41

APG Motor

CN69/70/

71/72

Print Head

OPERATING PRINCIPLES Outline of Circuit Boards 58

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.9.2 Power Supply Board

This section describes the power supply board that generates the power to operate this printer.

CIRCUIT BLOCK DIAGRAM

The block diagram of C635 Power Supply board is shown below.

DC output

Control signal input

AC input

Input Filter

(Rush current prevention circuit

Pseudo-resonance type separately-excited flyback

1. OCP function

2. OVP function

3. Secondary power switch function

+42V/0.7A

5VOVP

ESAVE

PSC

Figure 2-34. C635 Power Supply Board Block Diagram

CONTROL SIGNALS

There are three control signals between the C635 MAIN Board and the Power Supply Circuit Board as shown in the table below.

Table 2-9. Control Signals

Signal Name Function Output Remarks

PS Control Signal (PSC)

Energy Save Signal (ESAVE)

Overvoltage Detection Signal (OVP)

Power ON 39.9 to 44.1 V The PS unit outputs the rated voltage.

Power OFF 3V or less The PS unit is instantly shut off.

Normal Operation

Power Saving Operation

Detection of overvoltage

39.9 to 44.1 V The PS unit outputs the rated voltage.

It takes less than 500 msec to recover

15V Typ.

0 V (Power is shutoff)

from the power saving mode to the rated voltage.

The power is shut off when the OVP terminal voltage exceeds 7 V. To recover from the status, lower the OVP terminal voltage below 7 V, and reboot the printer after reinserting the power plug into a receptacle.

OPERATING PRINCIPLES Outline of Circuit Boards 59

EPSON Stylus Pro 3800/3800C/3850 Revision A

2.10

Colorimetric Calibration (Color ID) Overview

This printer employs “Colorimetric Calibration (Color ID)” to correct unit-to-unit variations in color. Colorimetric Calibration (Color ID) corrects not only the weight of ink droplets which differs depending on the individual characteristics of print head but also variable factors such as drive circuit and voltage. This enables a higher-accuracy calibration.

OVERVIEW

1. Printing/ Measuring the color of a correction pattern A correction pattern printed by a completed product is used for the calibration. A calibrator is used to perform the color measurement of the printed pattern.

2. Writing the correction value Correction values are automatically calculated based on the result of the color measurement and stored in the NVRAM on the main board.

3. Reflecting the correction value Every time the printer makes a print, the printer driver reads out the correction values from the NVRAM. Each ink droplet weight and the number of ink droplets for each dot are corrected according to the information.

Main Unit

Print Head Main Board

Individual characteristic of print head

Drive Control

Circuit for

Print Head

Correction of the number of ink droplets

Correction of

ink droplet weight

Variation of elements on the print head control circuit

Colorimetric Calibration

(Color ID)

Power Supply

Board

Variation in voltage applied to print head

Printout

Figure 2-35. Colorimetric Calibration (Color ID)

OPERATING PRINCIPLES Colorimetric Calibration (Color ID) Overview 60

TROUBLE SHOOTING

CHAPTER

EPSON Stylus Pro 3800/3800C/3850 Revision A

3.1 Overview

This section explains the basic procedure for troubleshooting problems on the printer quickly and efficiently.

3.1.1 Preliminary Check

Make sure to verify or perform the following basic items whenever servicing the printer.

1. There is no foreign material which interferes with the proper operation of the printer.

2. Print the status sheet, and check the information printed on the sheet to find out possible causes of the error; if the main units have reached their end of life, or if there is something wrong with the user-defined panel settings.

3. Both outside and inside of the printer are free of significant dirt. Clean it if significant dirt is observed.

4. None of the parts or components of the printer are missing, chipped or damaged.

5. All of the harnesses are free of damages and properly connected to their connectors.

6. The cams and gears in the printer mechanism are engaged correctly showing no signs of wear.

7. When smudges appear on printed pages, clean the rubber rollers in the printer mechanism if it solves the problem.

8. The rubber rollers in the printer mechanism are engaged correctly showing no signs of wear.

9. Initialize the NVRAM on the C635 main board (reset the user-defined panel settings to their factory default) if necessary. Execute the DEFAULT PANEL in the Maintenance mode.

W A R N I N G

When handling the lithium battery used for backup of the RTC on the main board, strictly follow the safety instructions given in

“4.1.1 Precautions” (p86).

C A U T I O N

 Before disassembling/reassembling the printer, be sure to turn

the power OFF, confirm the panel display disappears, and unplug the power code.

 Be sure to use the specified tools for maintenance/repair.  To maintain the product’s quality, be sure to use the specified

lubricant and adhesive.

 Be sure to perform the adjustments as required.

3.1.2 Troubleshooting Procedure

Follow the flowchart given below to troubleshoot problems efficiently.

Occurrence of Troubles

Error message is

displayed on the LCD

(Page 63)

Warning message is

displayed

(Page 68)

Print Quality Troubles

(Page 82)

Error message is

displayed

(Page 66)

Service Call message is

displayed

(Page 74)

TROUBLE SHOOTING Overview 62

EPSON Stylus Pro 3800/3800C/3850 Revision A

3.2 List of Panel Messages

The printer runs diagnostic checks on itself according to various conditions detected by the mounted sensors. If an error condition is detected as a result of the self-diagnosis, the printer displays the corresponding error message on its LCD panel. The error messages are shown on the following list.

Table 3-1. List of Panel Messages

Category Message on LCD Description

Warning

Error

MAINTENANCE REQUEST XXXX

INK LOW Ink level is low. p66 MAINTENANCE CARTRIDGE

IS NEARLY FULL SERVICE CALL ERROR

NNNN PLEASE CONTACT TO THE REPAIR CENTER

PRINTER ERROR RESTART THE PRINTER

CARRIAGE LOCKED RELEASE THE CARRIAGE LOCK

PAPER JAM CLEAR JAMMED PAPER SEE PRINTER GUIDE FOR INSTRUCTIONS

NO MAINTENANCE CART. INSTALL THE MAINTENANCE CARTRIDGE.

MAINTENANCE COVER OPEN CLOSE THE MAINTENANCE COVER

PAPER FEED ERROR REMOVE PAPER AND LOAD PAPER CORRECTLY

Maintenance Call Warning

The maintenance cartridge is close to its full status.

A fatal error has occurred. (Service Call No. is displayed.)

A fatal error has occurred. (Rebooting the printer is required))

A fatal error has occurred. (The carriage is locked) p68

A paper jam has occurred. (Fatal error)

No maintenance cartridge is recognized.

A maintenance cartridge CSIC read/ write error has occurred.

The maintenance cartridge cover is open.

Failed to feed paper into the printer.

Ref.

Page

p66

p68

Table 3-1. List of Panel Messages

Category Message on LCD Description

Error

PAPER FEED ERROR LOAD PAPER CORRECTLY AND PRESS PAPER/FEED BUTTON

PAPER JAM REMOVE PAPER

CANNOT OPEN COVER IS THERE ANYTHING ON THE PRINTER? PRESS THE UP BUTTON

MAINTENANCE CARTRIDGE NEARLY FULL REPLACE THE CARTRIDGE

NOT ENOUGH INK REPLACE INK CARTRIDGE WITH A NEW ONE

MAINTENANCE PLEASE USE GENUINE EPSON CARTRIDGES

MAINTENANCE NON-GENUINE CARTRIDGE! MAY NOT PERFORM AT OPTIMUM. CONTINUE? <YES NO>

MAINTENANCE THIS MAY VOID EPSON’S WARRANTY. DO YOU ACCEPT THIS? <ACCEPT DECLINE>

MAINTENANCE CARTRIDGE FULL REPLACE THE CARTRIDGE

Failed to feed board paper into the printer.

A paper jam has occurred and failed to eject the paper.

Failed to open the ink cartridge cover.

The maintenance cartridge is almost full (insufficient for the required job).

The ink cartridge is almost empty (insufficient for the required job).

The maintenance cartridge is not an EPSON-genuine one. p69

The maintenance cartridge is not an EPSON-genuine one. (Confirmation 1)

The maintenance cartridge is not an EPSON-genuine one. (Confirmation 2)

The maintenance cartridge is full.

Ref.

Page

p69

TROUBLE SHOOTING List of Panel Messages 63

EPSON Stylus Pro 3800/3800C/3850 Revision A

Table 3-1. List of Panel Messages

Category Message on LCD Description

Error

FRONT FEED SLOT OPEN PRESS THE DOWN BUTTON AND REMOVE PAPER

FRONT FEED SLOT OPEN CLOSE THE FRONT MANUAL FEED SLOT

FRONT FEED SLOT OPEN LOAD MEDIA AND PRESS THE DOWN BUTTON

FRONT SLOT CLOSED OPEN THE FRONT MANUAL FEED SLOT

NO INK CARTRIDGE INSTALL INK CARTRIDGE

INK CARTRIDGE ERROR REPLACE CARTRIDGE

INK CARTRIDGE PLEASE USE GENUINE EPSON INK CARTRIDGE

INK CARTRIDGE NON-GENUINE CARTRIDGE! MAY NOT PERFORM AT OPTIMUM. CONTINUE? <YES NO>

A board paper could not be removed.

The board paper tray was opened in the middle of printing.

No paper has been loaded on the board paper tray.

The board paper tray was closed in the middle of printing.

The board paper tray was closed when a paper in the tray needs to be removed.

No ink cartridge is recognized.

An ink cartridge CSIC read/write error has occurred.

The ink cartridge is not an EPSONgenuine one.

The ink cartridge is not an EPSONgenuine one. (Confirmation 1)

Ref.

Page

p70

p71

Table 3-1. List of Panel Messages

Category Message on LCD Description

Error

INK CARTRIDGE THIS MAY VOID EPSON’S WARRANTY. DO YOU ACCEPT THIS? <ACCEPT DECLINE>

INK CARTRIDGE REPLACE INK CARTRIDGE

INK COVER OPEN CLOSE THE INK COVER

COMMAND ERROR CHECK DRIVER SETTINGS

PAPER SKEW PRESS THE DOWN BUTTON LOAD PAPER CORRECTLY

PAPER ERROR PRESS THE DOWN BUTTON LOAD PAPER CORRECTLY

BORDERLESS ERROR PRESS THE DOWN BUTTON LOAD THE CORRECT SIZE PAPER

PAPER EJECT ERROR PRESS THE DOWN BUTTON AND REMOVE PAPER

PAPER FEED ERROR LOAD PAPER CORRECTLY PRESS THE DOWN BUTTON

PAPER REMOVE REMOVE PAPER FROM THE REAR

The ink cartridge is not an EPSONgenuine one. (Confirmation 2)

The ink cartridge is empty.

The ink cartridge cover was opened.

A command error has occurred.

The loaded paper is skewed.

Failed to detect the paper width.

The paper size is not available for the borderless printing.

Failed to eject a cut sheet of paper.

A multi-feed was detected and the papers were ejected automatically without printing.

Failed to eject paper fed from the rear manual tray.

Ref.

Page

p71

p72

TROUBLE SHOOTING List of Panel Messages 64

EPSON Stylus Pro 3800/3800C/3850 Revision A

Table 3-1. List of Panel Messages

Category Message on LCD Description

Error

PAPER ERROR LOAD PAPER

PAPER SIZE ERROR LOAD THE CORRECT SIZE PAPER

PAPER SENSOR ERROR PRESS THE BUTTON LOAD DIFFERENT PAPER

PAPER SENSOR ERROR PRESS THE BUTTON LOAD THE CORRECT PAPER

CLEANING ERROR PRESS THE CANCEL/RESET BUTTON

CLEANING ERROR PRESS THE DOWN BUTTON AND REMOVE THICK PAPER

PAPER SETTING ERROR CHECK PAPER SOURCE IN THE DRIVER SETTINGS AND LOAD PAPER CORRECTLY

No paper is detected.

The size of loaded paper does not match with the paper size setting.

The ink mark sensor sensitivity adjustment could not be made. p72

Failed to determine the adjustment value based on the result detected by the ink mark sensor. (could not determine, or the determined value fell outside the adjustable range.)

Clogging nozzles are detected by the nozzle check after running a head cleaning.

A head cleaning was attempted with a board paper loaded, or before printing when the PW sensor was OFF.

The paper has been loaded in the tray that is different from the one specified in the driver setting. p73

Ref.

Page

p72

p73

TROUBLE SHOOTING List of Panel Messages 65

EPSON Stylus Pro 3800/3800C/3850 Revision A

3.3 Remedies for Warning Messages

When a Warning error occurs, the printer displays a Warning message instead of “READY” or “PRINTING” messages, however, it does not interfere with printing operation.

REMEDIES

The following tables explains the Warning messages and remedies.

Table 3-2. Remedies for Warning Messages

Message on LCD Description Remedy

MAINTENANCE REQUEST XXXX

INK LOW The remaining ink is low. Prepare a new ink cartridge.

MAINTENANCE CARTRIDGE IS NEARLY FULL

See MAINTENANCE Request XXXX on page 67.

The free space of the maintenance cartridge is low. Prepare a new maintenance cartridge.

TROUBLE SHOOTING Remedies for Warning Messages 66

EPSON Stylus Pro 3800/3800C/3850 Revision A

MAINTENANCE REQUEST XXXX

When a Maintenance Request error occurs, the printer displays on the LCD a hexadecimal code of “NNNN” which correspond to the bit numbers assigned to error statuses as shown in the table below.

Table 3-3. Maintenance Request Errors

Bit assignment (Binary)

0 1 2 3 4 5 6 7 8 9 10 11 12 13-15

1 0 (NA) 0 (NA) (NA) 0 0 0 (NA) (NA) 0 0 (RSVD) 0001

1 (NA) 0 (NA) (NA) 0 0 0 (NA) (NA) 0 0 (RSVD) 0002

0 0 (NA)

0 0 (NA) 0 (NA) (NA)

0 0 (NA) 0 (NA) (NA) 0

0 0 (NA) 0 (NA) (NA) 0 0

0 0 (NA) 0 (NA) (NA) 0 0 0 (NA) (NA)

0 0 (NA) 0 (NA) (NA) 0 0 0 (NA) (NA) 0

Ex.

0 0 (NA) 1 (NA) (NA) 0 1 0 (NA) (NA) 0 0 (RSVD) 0088

1 (NA) (NA) 0 0 0 (NA) (NA) 0 0 (RSVD) 0008

1 0 0 (NA) (NA) 0 0 (RSVD) 0040

1 0 (NA) (NA) 0 0 (RSVD) 0080

1 (NA) (NA) 0 0 (RSVD) 0100

1 0 (RSVD) 0800

1 (RSVD) 1000

XXXX (Hexa-

decimal)

Cause Remedy

The counter of waste ink used for printing margins at borderless printing has reached the specified value.

The CR scan pass counter has reached the specified value. (ink supply tube has reached its end of life.)

The RTC backup battery becomes exhausted.

The pump counter has reached the specified value.

The date has not been set. Execute RTC initialization using the Adjustment Program.

The RTC backup battery power has temporarily dropped.

The ink cartridge installation/removal counter has reached the upper limit.

The number of drives of the ink selector has reached the upper limit.

RTC backup battery has not been set.

Replace the waste ink pads for borderless printing (POROUS PAD,INK WASTE BOX, LEFT/RIGHT) with new ones, and clear the counter using the Adjustment Program.

Replace the tube (INK,SYSTEM,ASSY.) with a new one, and clear the counter using the Adjustment Program.

Replace the battery with a new one, and execute RTC initialization using the Adjustment Program.

Replace the pump cap unit (PUMP,CAP,ASSY.) with a new one, and clear the counter using the Adjustment Program.

Wait until the power recovers.

Replace the waste ink pad (POROUS PAD,TRAY,INK EJECT) in the cartridge holder with a new one, and clear the counter using the Adjustment Program.

Replace the ink selector (INK,SYSTEM,ASSY.) with a new one, and clear the counter using the Adjustment Program.

Install a battery, and execute RTC initialization using the Adjustment Program to set date and time.

CR life

Unassigned

Description

Borderless printing absorber

Unassigned

Battery exhaustion

Pump cap unit life

Date not set

Battery voltage

Unassigned

Holder absorber life

Unassigned

Ink selector life

NOTE : Ex): When “Maintenance Request 0088” is displayed.

As “0088” in hexadecimal means “1000 1000” in binary, you can find out the code is assigned to Bit-3 and Bit-7 referring to the above table. In this case, two errors are occurring simultaneously. (Bit-3: battery exhaustion/ Bit-7: the date and time has not been set.)

TROUBLE SHOOTING Remedies for Warning Messages 67

EPSON Stylus Pro 3800/3800C/3850 Revision A

3.4 Remedies for Error Messages

The following tables explains the error messages and remedies.

Message on LCD Description Remedy

SERVICE CALL ERROR NNNN PLEASE CONTACT TO THE REPAIR CENTER

PRINTER ERROR RESTART THE PRINTER

CARRIAGE LOCKED RELEASE THE CARRIAGE LOCK

PAPER JAM CLEAR JAMMED PAPER SEE PRINTER GUIDE FOR INSTRUCTIONS

NO MAINTENANCE CART. INSTALL THE MAINTENANCE CARTRIDGE.

MAINTENANCE COVER OPEN CLOSE THE MAINTENANCE COVER

PAPER FEED ERROR REMOVE PAPER AND LOAD PAPER CORRECTLY

See 3.5 Remedies for Service Call Error on page 74.

A firmware bug, or some circuit component(s) on the main board is (are) damaged.

The power is turned On without removing the protective material for the print head.

A paper jam has occurred. Remove the jammed paper and load paper correctly.

The PE sensor detected paper is still in the paper feed path. Torn scrap of paper or some foreign matter may exist.

Paper feeding was physically interrupted. Check the paper feed path and remove any scrap of paper or foreign matter.

No maintenance cartridge has been installed. Install a maintenance cartridge.

The maintenance cartridge cannot be recognized by the printer. Remove the maintenance cartridge and reinstall it correctly. If this does not

The printer cannot read/write data from/to the CSIC of the maintenance cartridge properly.

The cover of the maintenance cartridge is open. Close the maintenance cartridge cover.

The maintenance cartridge cover sensor cannot detect that the cover is closed. Check the cover. If any damage is observed, replace it with a new one.

The PW sensor cannot detect the paper when the PF motor has driven a predetermined number of steps.

Paper feeding was physically interrupted. Check the paper feed path and remove any scrap of paper or foreign matter.

Turn the printer Off and reboot it after waiting for a while. If a Service Call error occurs, see 3.5 Remedies for Service Call Error (p74) for further troubleshooting.

Remove the protective material.

Check the paper feed path around the PE sensor and remove any scrap of paper or foreign matter.

solve the problem, replace the cartridge with a new one.

Replace the maintenance cartridge with a new one.

Check that the following connectors are connected correctly.

 Connector on the maintenance cartridge cover sensor  CN62 on the main board

Replace the maintenance cartridge cover sensor.

See 4.3.6.4 MAINTENANCE CARTRIDGE SENSOR on page 128.

Remove the paper and load paper correctly.

TROUBLE SHOOTING Remedies for Error Messages 68

EPSON Stylus Pro 3800/3800C/3850 Revision A

Message on LCD Description Remedy

PAPER FEED ERROR LOAD PAPER CORRECTLY AND PRESS PAPER/FEED BUTTON

PAPER JAM REMOVE PAPER

CANNOT OPEN COVER IS THERE ANYTHING ON THE PRINTER? PRESS THE UP BUTTON

MAINTENANCE CARTRIDGE NEARLY FULL REPLACE THE CARTRIDGE

NOT ENOUGH INK REPLACE INK CARTRIDGE WITH A NEW ONE

MAINTENANCE PLEASE USE GENUINE EPSON CARTRIDGES

MAINTENANCE NON-GENUINE CARTRIDGE! MAY NOT PERFORM AT OPTIMUM. CONTINUE? <YES NO>

MAINTENANCE THIS MAY VOID EPSON’S WARRANTY. DO YOU ACCEPT THIS? <ACCEPT DECLINE>

MAINTENANCE CARTRIDGE FULL REPLACE THE CARTRIDGE

Feeding board paper was physically interrupted. Check if the paper is thicker than available thickness. Use paper of available

thickness.

Check the paper. If it is curled or creased, change it with a normal one.

 The PE sensor still detects the paper after the PF motor has driven a

predetermined number of steps.

 The Paper Feed/Down button was pressed three times to remove paper fed

from the rear manual tray.

The cartridge cover cannot open due to an obstruction on the top of it. If any obstruction is observed, remove it.

The maintenance cartridge is near capacity. The available space may not be enough to continue the job.

The ink cartridge is near empty. Replace the ink cartridge with a new one.

The installed maintenance cartridge is not the EPSON genuine cartridge. Replace the maintenance cartridge with an EPSON genuine one.

The installed maintenance cartridge is not the EPSON genuine cartridge. After selecting “NO”, replace the maintenance cartridge with a genuine one.

The maintenance Cartridge is full. Replace the Maintenance Cartridge with a new one.

Remove jammed paper, if any.

Check the connection between the PE sensor and the main board and fix any abnormality.

Replace the PE sensor (PAPER, DETECTOR, ASSY).

See 4.4.1.4 PAPER, DETECTOR, ASSY. on page 185.

Replace the maintenance cartridge with a new one.

TROUBLE SHOOTING Remedies for Error Messages 69

EPSON Stylus Pro 3800/3800C/3850 Revision A

Message on LCD Description Remedy

FRONT FEED SLOT OPEN PRESS THE DOWN BUTTON AND REMOVE PAPER

FRONT FEED SLOT OPEN CLOSE THE FRONT MANUAL FEED SLOT

FRONT FEED SLOT OPEN LOAD MEDIA AND PRESS THE DOWN BUTTON

FRONT SLOT CLOSED OPEN THE FRONT MANUAL FEED SLOT

NO INK CARTRIDGE INSTALL INK CARTRIDGE

INK CARTRIDGE ERROR REPLACE CARTRIDGE

INK CARTRIDGE PLEASE USE GENUINE EPSON INK CARTRIDGE

The release roller is locked because the Board Paper Tray (front feed slot) has been held open for longer than a predetermined time period.

The Board Paper Tray (front feed slot) was opened when it should not be

 Press the Paper Feed/Down button to unlock the release roller.  When no paper has been loaded on the tray, close the tray.

Close the Board Paper Tray (front feed slot).

opened.

 The tray was opened after feeding paper from the rear manual tray using the

operation panel.

 The tray was open when paper feeding from the ASF was started.  The tray was opened before the power-on initialization sequence is finished.

The Board Paper Tray (front feed slot) was opened when the printer became ready for printing.

The Board Paper Tray (front feed slot) is closed when the tray is selected as the

Load paper on the Board Paper Tray (front feed slot), and press the Paper Feed/Down button.

Open the Board Paper Tray (front feed slot).

paper source.

The Board Paper Tray Open sensor is not connected. Check the connection between the sensor and the main board, and fix any

abnormality.

The Board Paper Tray Open sensor is broken. Replace the sensor.

The Board Paper Tray (front feed slot) is closed, but the PE sensor is detecting

Open the Board Paper Tray (front feed slot).

paper.

The Board Paper Tray Open sensor is not connected. Check the connection between the sensor and the main board and fix any

abnormality.

The Board Paper Tray Open sensor is broken. Replace the sensor with a new one.

The printer cannot recognize the ink cartridge. Install an ink cartridge. If already installed, remove and reinstall it.

Replace the ink cartridge.

The printer cannot read/write data from/into the CSIC correctly. Check the connection between the CSIC and the main board, and fix any

abnormality.

Replace the ink cartridge.

The installed ink cartridge is not the EPSON genuine cartridge. Replace the ink cartridge with an EPSON genuine one.

TROUBLE SHOOTING Remedies for Error Messages 70

EPSON Stylus Pro 3800/3800C/3850 Revision A

Message on LCD Description Remedy

INK CARTRIDGE NON-GENUINE CARTRIDGE! MAY NOT PERFORM AT OPTIMUM. CONTINUE? <YES NO>

INK CARTRIDGE THIS MAY VOID EPSON’S WARRANTY. DO YOU ACCEPT THIS? <ACCEPT DECLINE>

INK CARTRIDGE REPLACE INK CARTRIDGE

INK COVER OPEN CLOSE THE INK COVER

COMMAND ERROR CHECK DRIVER SETTINGS

PAPER SKEW PRESS THE DOWN BUTTON LOAD PAPER CORRECTLY

PAPER ERROR PRESS THE DOWN BUTTON LOAD PAPER CORRECTLY

The installed ink cartridge is not the EPSON genuine cartridge. After selecting “NO”, replace the ink cartridge with a genuine one.

The ink cartridge is empty. Replace the ink cartridge with a new one.

The Ink Cover is open. Close the Ink Cover.

The Ink Cover Open sensor is broken. Replace the Ink Cover Open sensor (LOCK, COVER, ASSY.).

See 4.3.6.1 LOCK, COVER, ASSY. on page 123.

The printer received an invalid command. Cancel the job and reset the printer by pressing the Cancel/Reset button for

more than three seconds.

Check if the correct printer driver has been installed on the PC. If not, install the correct driver.

Paper skew was detected when paper was fed from the rear or front manual tray.

Unsupported media (such as a transparency) was fed, and the PW sensor cannot detect the media.

The PW sensor cannot detect the paper because the paper is similar in color to the platen.

The PW sensor is broken. Replace the PW sensor (BOARD ASSY., DETECTOR, PW; B)

Press the Paper Feed/Down button to eject the paper.

Press the Paper Feed/Down button to eject the paper, and change it with a correct one. Or, set the PAPER SIZE CHECK in the PRINTER SETUP menu to OFF.

Press the Paper Feed/Down button to eject the paper, and change it with a different colored one. Or, set the PAPER SIZE CHECK in the PRINTER SETUP menu to OFF.

See 4.3.11.4 BOARD ASSY., DETECTOR, PW; B on page 174.

TROUBLE SHOOTING Remedies for Error Messages 71

EPSON Stylus Pro 3800/3800C/3850 Revision A

Message on LCD Description Remedy

BORDERLESS ERROR PRESS THE DOWN BUTTON LOAD THE CORRECT SIZE PAPER

PAPER EJECT ERROR PRESS THE DOWN BUTTON AND REMOVE PAPER

PAPER FEED ERROR LOAD PAPER CORRECTLY PRESS THE DOWN BUTTON

PAPER REMOVE REMOVE PAPER FROM THE REAR

PAPER ERROR LOAD PAPER

PAPER SIZE ERROR LOAD THE CORRECT SIZE PAPER

PAPER SENSOR ERROR PRESS THE BUTTON LOAD DIFFERENT PAPER

The paper edges are not on the Porous Pad because the size of the loaded paper is not supported for borderless printing.

The paper edges are not on the Porous Pad because the paper is not set in the correct position.

The PAPER SIZE CHECK in the PRINTER SETUP menu has been set to OFF.

The paper length is longer than available length shown below. The PE sensor does not turn Off even after the PF Motor has driven a predetermined number of steps.

 Cut sheet: Less than 1,200 mm  Board paper: Less than 24 inches

The paper is stuck in the paper path, and cannot be ejected. Remove the paper.

The PE sensor is broken. Replace the PE sensor (PAPER, DETECTOR, ASSY.).

Sheets of paper stacked on the ASF became misaligned while performing duplex-printing.

The paper cannot be ejected normally for some reasons. Remove the paper.

The PE sensor is broken. Replace the PE sensor (PAPER, DETECTOR, ASSY.).

Feeding paper from the ASF failed twice in succession. Load paper and press the Paper Feed/Down button.

A print job specifying the rear or front manual feed tray as its paper source is received, but the PE sensor does not detect the paper.

The size of the loaded paper is different from that is specified in the received job.

The low reflective paper is used. Press the Cancel/Reset button and load a different type of paper.

An error has occurred at the Ink Mark sensor sensitivity check.

Press the Paper Feed/Down button to eject the paper. Load paper of the size available for borderless printing.

See 1.3.3 Paper Support on page 15.

Press the Paper Feed/Down button to eject the paper, and set the paper correctly.

Set the PAPER SIZE CHECK to ON.

Press the Paper Feed/Down button to eject the paper.

See 4.4.1.4 PAPER, DETECTOR, ASSY. on page 185.

Reset the ejected blank paper and press the Paper Feed/Down button.

See 4.4.1.4 PAPER, DETECTOR, ASSY. on page 185.

Check the PF roller and replace it if worn.

See 4.4.1.1 ASF, ASSY. on page 179.

Replace the PE sensor (PAPER, DETECTOR, ASSY.).

See 4.4.1.4 PAPER, DETECTOR, ASSY. on page 185.

Load paper whose size matches with the job setting.

Replace the Ink Mark sensor (BOARD ASSY., INK MARK).

See 4.3.11.3 BOARD ASSY., INK MARK on page 173.

TROUBLE SHOOTING Remedies for Error Messages 72

EPSON Stylus Pro 3800/3800C/3850 Revision A

Message on LCD Description Remedy

PAPER SENSOR ERROR PRESS THE BUTTON LOAD THE CORRECT PAPER

CLEANING ERROR PRESS THE CANCEL/RESET BUTTON

CLEANING ERROR PRESS THE DOWN BUTTON AND REMOVE THICK PAPER

PAPER SETTING ERROR CHECK PAPER SOURCE IN THE DRIVER SETTINGS AND LOAD PAPER CORRECTLY

An error has occurred while the Ink Mark sensor is reading the print pattern for adjustment.

Clogged nozzles cannot be cleared even after running head cleaning cycle a predetermined number of times.

Head cleaning was attempted when board paper had been fed. Remove the board paper and close the Board Paper Tray.

The ASF is specified as the paper source of the received job, but paper has been loaded on the front or rear manual feed tray.

Feeding paper from the ASF is attempted using the operation panel after receiving a job specifying the front or rear manual feed tray as its paper source.

Press the Cancel/Reset button and load a different type of paper.

Press the Cancel/Reset button to clear the error, and retry the head cleaning.

Cancel the job, or press the Paper Feed/Down button to eject the the paper.

TROUBLE SHOOTING Remedies for Error Messages 73

EPSON Stylus Pro 3800/3800C/3850 Revision A

3.5 Remedies for Service Call Error

The following tables explains the Service Call error messages and remedies.

C H E C K

P O I N T

Make sure to check the related connectors and cables for poor connection or any abnormality before replacing any electrical part as instructed in the Remedy column. If the replacement does not solve the problem, replace the main board.

Error Code Error Name Description Remedy

1101 CR life error The CR scan path counter has reached a predetermined level.

(The end of life of the Ink Supply Tube)

1120 CR lock error The CR encoder failed to read the CR scale during a

predetermined time period.

The carriage unit does not operate due to a CR motor failure or some reasons.

1121 CR reverse error An abnormal operation (reveres movement) of the carriage was

detected a predetermined number of times.

1122 CR overspeed error The carriage moved faster than a designated level. Check the CR scale (SCALE, CR) for incorrect attachment,

Replace the Ink Supply Tube (INK, SYSTEM, ASSY) and reset the counter using the Adjustment Program.

See 4.3.9.3 INK, SYSTEM, ASSY. on page 151..

Replace the CR encoder (BOARD ASSY., ENCODER, CR).

See 4.3.11.2 BOARD ASSY., ENCODER on page 172.

Replace the CR scale (SCALE, CR).

See 4.3.7.1 SCALE, CR on page 130.

Move the carriage unit manually to check if it moves smoothly, and fix any abnormality.

Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

Check the CR scale (SCALE, CR) for incorrect attachment, scratch, dirt, and fix any abnormality.

Replace the CR scale (SCALE, CR).

See 4.3.7.1 SCALE, CR on page 130.

Replace the CR encoder (BOARD ASSY., ENCODER, CR).

See 4.3.11.2 BOARD ASSY., ENCODER on page 172.

scratch, dirt, and fix any abnormality. Replace the CR encoder (BOARD ASSY., ENCODER, CR).

See 4.3.11.2 BOARD ASSY., ENCODER on page 172.

Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

TROUBLE SHOOTING Remedies for Service Call Error 74

EPSON Stylus Pro 3800/3800C/3850 Revision A

Error Code Error Name Description Remedy

1123 Duty over error An abnormal load is applied to the CR motor. Check the carriage shaft surface for any foreign matters, and

remove it if any. Check that the carriage shaft and the contact points between the

carriage unit and the main frame are properly lubricated. Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

1124 Drive timeover error One cycle movement cannot be finished during a predetermined

time period after power-on.

1125 CR home position detection error

1126 CR lock release error The carriage unit cannot be unlocked. 1127 CR lock set error The printer cannot lock the carriage unit. 1130 Overspeed error (PID-load positioning) The carriage speed detected by the CR encorder exceeded the

1131 Drive timeover error (PID-load positioning) The condition to stop the CR motor is not satisfied when the CR

1132 Out of sync. (PID-load positioning) The carriage unit position error detected by the CR encoder fell

1133 Positioning time-out (PID-load positioning) The carriage unit cannot reach the target position. Check that the CR timing belt is properly attached.

The carriage home position cannot be detected because the Pump Cap unit does not work to unlock the carriage at power-on.

limit.

motor has driven for a predetermined time period.

outside the specified limits.

Replace the CR encoder (BOARD ASSY., ENCODER, CR).

See 4.3.11.2 BOARD ASSY., ENCODER on page 172.

Replace the CR scale (SCALE, CR).

See 4.3.7.1 SCALE, CR on page 130.

Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

Replace the Pump Cap unit (PUMP, CAP ASSY.) and clear the usage counter using the Adjustment Program.

See 4.3.9.1 PUMP, CAP ASSY. on page 148.

Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Replace the CR encoder (BOARD ASSY., ENCODER, CR).

See 4.3.11.2 BOARD ASSY., ENCODER on page 172.

Replace the CR scale (SCALE, CR).

See 4.3.7.1 SCALE, CR on page 130.

Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

Check that the CR timing belt is properly attached. Check the CR timing belt’s tension. Correct it if not proper. Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

Check the CR timing belt’s tension. Correct it if not proper. Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

TROUBLE SHOOTING Remedies for Service Call Error 75

EPSON Stylus Pro 3800/3800C/3850 Revision A

Error Code Error Name Description Remedy

1134 Integral term overload (PID-load

positioning)

1135 Encoder test error (PID-load positioning) Some abnormalities were found in the encoder test result. Check the CR scale (SCALE, CR) for any dirt, and clean it if any

1221 PF measurement error An abnormal load is applied to the PF motor. Check all the parts that are driven by the PF motor for any

1222 Drive timeover error The condition to stop the PF motor is not satisfied when the PF

1220 Overspeed error The motor speed detected by the PF encorder exceeded the limit. Replace the PF motor (MOTOR, RELEASE, ASSY).

1223 Encoder test error Some abnormalities were found in the encoder test result. Check the PF scale (SCALE, PF) for any dirt, and clean it if any

1224 Out of sync. The positioning error detected by the PF encoder fell outside the

An abnormal load is applied to the CR motor. Check the carriage shaft surface for any foreign matters, and

remove it if any. Check that the carriage shaft and the contact points between the

carriage unit and the main frame are properly lubricated. Replace the CR motor (MOTOR ASSY., CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

dirt is observed. Check the CR encoder (BOARD ASSY., ENCODER, CR) for

incorrect attachment, scratch, dirt, and fix any abnormality. Replace the CR encoder (BOARD ASSY., ENCODER, CR).

See 4.3.11.2 BOARD ASSY., ENCODER on page 172.

abnormal load, and fix any abnormality. Replace the PF motor (MOTOR, RELEASE, ASSY).

See 4.3.10.3 MOTOR, RELEASE, ASSY. on page 167.

Replace the PF motor (MOTOR, RELEASE, ASSY).

motor has driven for a predetermined time period.

specified limits.

See 4.3.10.3 MOTOR, RELEASE, ASSY. on page 167.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

See 4.3.10.3 MOTOR, RELEASE, ASSY. on page 167.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

dirt is observed. Check the PF encoder (BOARD ASSY., ENCODER, PF) for

incorrect attachment, scratch, dirt, and fix any abnormality. Replace the PF encoder (BOARD ASSY., ENCODER, PF).

See 4.3.6.2 ENCODER, PF, ASSY. on page 126.

Check that the PF timing belt is properly attached. Check the PF timing belt’s tension. Correct it if not proper. Replace the PF motor (MOTOR, RELEASE, ASSY).

See 4.3.10.3 MOTOR, RELEASE, ASSY. on page 167.

TROUBLE SHOOTING Remedies for Service Call Error 76

EPSON Stylus Pro 3800/3800C/3850 Revision A

Error Code Error Name Description Remedy

1225 Positioning time-out The PF roller cannot be rotated to the specified point. Check that the PF timing belt is properly attached.

Check the PF timing belt’s tension. Correct it if not proper. Replace the PF motor (MOTOR, RELEASE, ASSY).

See 4.3.10.3 MOTOR, RELEASE, ASSY. on page 167.

1226 Integral term overload An abnormal load is applied to the PF motor. Check all the parts that are driven by the PF motor for any

abnormal load, and fix any abnormality. Replace the PF motor (MOTOR, RELEASE, ASSY).

See 4.3.10.3 MOTOR, RELEASE, ASSY. on page 167.

131B Head driver (transmission gate) temp. error The temperature of the head driver has reached the upper limit. Check the head FFC for connection status. Reconnect the FFC

correctly. Replace the print head.

See 4.3.9.5 PRINT HEAD on page 159.

The main board is broken. Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

1400 Pressure motor drive timeover The target pressure cannot be achieved after the Pressure motor

has driven for a predetermined time period (40 seconds).

The home position of the Pressure pump cannot be detected because the ridges of the accordion unit are adhered to each other, or the Pressure pump home sensor is broken.

1401 Air leaks The Pressure pump has air leaks. Check that the pressure tube is properly connected. Reconnect the

1403 Pressure reducing error The pressure cannot be reduced. Replace the pressure pump (PURESSURE, PUMP, ASSY).

1404 Pump movement cycle over error The Pressure pump performed its movement cycle a

predetermined number of times (60 cycles), but the pressure does not reach the specified level due to a malfunction of the pump, sensor or motor.

Because of air leaks, the specified pressure cannot be obtained. Replace the ink cartridge. Air is leaking through a gap between the ink cartridge and the ink

cartridge holder due to an obstruction between them.

Check junction of the ink cartridge and the ink cartridge holder, and remove any obstruction between them if any.

Replace the ink cartridge. Replace the pressure pump (PURESSURE, PUMP, ASSY). Replace the pressure pump (PURESSURE, PUMP, ASSY).

See 4.3.12.1 PRESSURE, PUMP, ASSY. on page 176.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

tube correctly if not. Replace the pressure pump (PURESSURE, PUMP, ASSY).

See 4.3.12.1 PRESSURE, PUMP, ASSY. on page 176.

Replace the pressure pump (PURESSURE, PUMP, ASSY).

See 4.3.12.1 PRESSURE, PUMP, ASSY. on page 176.

Check junction of the ink cartridge and the ink cartridge holder, and remove any obstruction between them if any.

TROUBLE SHOOTING Remedies for Service Call Error 77

EPSON Stylus Pro 3800/3800C/3850 Revision A

Error Code Error Name Description Remedy

1410 Drive time monitor time-out (PUMP) The Pump motor run away out of control. Turn the printer power On and Off.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

142D Pump cap unit life error The pump counter has reached its upper limit. Replace the Pump Cap Unit (PUMP, CAP, ASSY), and reset the

counter using the Adjustment Program.

See 4.3.9.1 PUMP, CAP ASSY. on page 148.

1425 CSIC communication time-out The printer cannot read/write data from/into the CSIC of the ink

cartridge or the maintenance cartridge.

1430 Holder ink pad error The ink cartridge installation/removal counter has reached the

specified limit.

1431 Ink selector error The number of drives of the Ink Selector has reached the specified

limit.

1432 Ink selector drive timeover Changing the ink path by the Ink Selector cannot be completed

during a predetermined time period due to a malfunction of the Ink Selector (its sensor or motor).

1434 Ink cover unlock error The cartridge cover cannot open due to an obstruction on the top

of it. The ink cover open sensor is broken and cannot detect an open/

close status of the cover. The ink cover solenoid is broken and cannot unlock the cover. Replace the ink cover solenoid.

1501 Release phase detection error The release roller position sensor cannot detect the actuator after

the release motor has driven a predetermined number of steps.

1502 Drive time monitor time-out

The condition to stop the release motor are not satisfied when the release motor has driven for a predetermined time period.

Check the connection between the CSIC and the main board and fix any abnormality.

Replace the ink cartridge or the maintenance cartridge. Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Replace the ink pad in the holder (POROUS PAD,TRAY,INK EJECT) and reset the counter using the Adjustment Program.

See 4.3.9.4 POROUS PAD, TRAY, INK EJECT on page 158.

Replace the Ink Selector (INK, SYSTEM, ASSY.) and reset the counter using the Adjustment Program.

See 4.3.9.3 INK, SYSTEM, ASSY. on page 151.

Replace the Ink Selector (INK, SYSTEM, ASSY.) and reset the counter using the Adjustment Program.

See 4.3.9.3 INK, SYSTEM, ASSY. on page 151.

Remove any obstruction on the cover.

Replace the ink cover Open sensor.

See 4.3.6.1 LOCK, COVER, ASSY. on page 123.

Replace the release motor (MOTOR, RELEASE, ASSY).

See 4.3.10.3 MOTOR, RELEASE, ASSY. on page 167.

Replace the release roller position sensor (Release Sensor).

See 4.3.6.3 RELEASE SENSOR on page 127.

Replace the release roller position sensor (Release Sensor).

See 4.3.6.3 RELEASE SENSOR on page 127.

Replace the release motor (MOTOR, RELEASE, ASSY).

See 4.3.10.3 MOTOR, RELEASE, ASSY. on page 167.

TROUBLE SHOOTING Remedies for Service Call Error 78

EPSON Stylus Pro 3800/3800C/3850 Revision A

Error Code Error Name Description Remedy

150C PF phase detection error The APG sensor cannot detect the origin point when the APG

motor has driven for a predetermined time period.

1511 Drive time monitor time-out (APG) The APG motor run away out of control. Turn the printer power On and Off.

1520 Drive time monitor time-out (CR) The CR motor run away out of control. Turn the printer power On and Off.

1531 ASF phase detection error A status detected by the ASF sensor does not change when the

ASF motor has driven for a predetermined time period.

1535 Pressure pump home detection error The home position of the Pressure pump cannot be detected at

power-on because the ridges of the accordion unit are adhered to each other, or the Pressure pump home sensor is broken.

1550 Borderless print ink pad error The counter for the waste ink used at the bleed-off margins for

borderless printing has reached its upper limit.

1600 Paper width sensor obstruction error A foreign substance on the platen was detected at power-on. Remove any dirt or foreign substances from the plate.

1601 Paper width sensor malfunction The PW sensor is broken. Replace the PW sensor (BOARD ASSY., DETECTOR, PW;B).

1A23 Invalid RTC data The various absolute time data stored in the NVRAM is

abnormal.

1A26 RTC communication time-out The RTC circuit on the main board is malfunctioning. 1. Turn the power Off and remove the lithium battery.

Replace the APG motor (MOTOR, ASSY, APG).

See 4.3.5.1 MOTOR ASSY., APG on page 118.

Replace the APG sensor.

See 4.3.6.5 APG SENSOR on page 129.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Replace the ASF motor (MOTOR, ASSY, ASF).

See 4.3.5.2 MOTOR ASSY., ASF on page 120.

Replace the ASF sensor.

See 4.4.1.3 ASF SENSOR on page 184.

Replace the Pressure Pump (PURESSURE, PUMP, ASSY).

See 4.3.12.1 PRESSURE, PUMP, ASSY. on page 176.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Replace the ink pad for borderless print (POROUS PAD, INK WASTE BOX, RIGHT/LEFT) and reset the counter using the Adjustment Program.

See 4.3.9.6 POROUS PAD, INK WASTE BOX, RIGHT/ POROUS PAD, INK WASTE BOX, LEFT on page 162.

Replace the PW sensor (BOARD ASSY., DETECTOR, PW;B).

See 4.3.11.4 BOARD ASSY., DETECTOR, PW; B on page 174.

Replace the CR motor (MOTOR, ASSY, CR).

See 4.3.5.3 MOTOR ASSY., CR on page 121.

See 4.3.11.4 BOARD ASSY., DETECTOR, PW; B on page 174.

Reset the RTC using the Adjustment Program and set the correct date and time.

2. After a several seconds, reattach the battery and turn the power back On.

3. If the printer recovers from the error, Reset the RTC using the Adjustment Program and set the correct date and time

TROUBLE SHOOTING Remedies for Service Call Error 79

EPSON Stylus Pro 3800/3800C/3850 Revision A

Error Code Error Name Description Remedy

1A37 Thermistor sensor error The head FFC is not correctly connected. Check the head FFC, and reconnect it correctly.

The head thermistor detected the head temperature fell outside the specified range.

The head thermistor is broken.

1A38 Transistor ambient temp. error The transistor is broken. Replace the main board (BOARD ASSY., MAIN).

The thermistor detected a temperature outside the specified range. 1A40 IC22 error The destination setting is wrong. Correct the destination setting. 2000 NVRAM error An NVRAM erase or write error has occurred. Replace the main board (BOARD ASSY., MAIN).

2002 SDRAM error An SDRAM read/write error has occurred. Replace the main board (BOARD ASSY., MAIN).

2003 FLASH BOOT SUM CHECK error Failed to install the firmware. Reinstall the firmware.

The FlashROM is broken. Replace the main board (BOARD ASSY., MAIN).

2009 FLASH SUM CHECK error Failed to install the firmware. Reinstall the firmware.

The FlashROM is broken. Replace the main board (BOARD ASSY., MAIN).

200A Firmware loading error The SDRAM is broken. Replace the main board (BOARD ASSY., MAIN).

200B Insufficient internal memory There is something wrong with the firmware. Install a normal firmware. 3000 AC power line shut-off The AC power was shut off due to a power failure, unplugged,

power supply board failure, or main board failure.

Replace the print head.

See 4.3.9.5 PRINT HEAD on page 159.

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Check the power cable (from the power outlet to the socket on the printer) for poor connection or breaks.

Replace the power supply board (BOARD ASSY., POWER SUPPLY).

See 4.3.4.2 BOARD ASSY., POWER SUPPLY on page 115.

Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

TROUBLE SHOOTING Remedies for Service Call Error 80

EPSON Stylus Pro 3800/3800C/3850 Revision A

Error Code Error Name Description Remedy

DXXX Error code for debugging The main board is broken. Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

There is something wrong with the firmware. Install a normal firmware.

FXXX CPU-related error The main board is broken. Replace the main board (BOARD ASSY., MAIN).

See 4.3.4.1 BOARD ASSY., MAIN on page 112.

There is something wrong with the firmware. Install a normal firmware.

TROUBLE SHOOTING Remedies for Service Call Error 81

EPSON Stylus Pro 3800/3800C/3850 Revision A

3.6 Remedies for Print Quality Troubles

This section provides troubleshooting of print quality troubles classifying them by observed symptom.

Symptom Description Remedy

Dot missing The nozzles are clogging with ink. Clear the clogged nozzles following the procedure below.

1. Run a manual head cleaning using the operation panel or the printer driver. (If the symptom does not change after running the cleaning cycle four times, proceed to the next step.)

2. Run a power cleaning cycle using the operation panel.

Replace the print head.

See 4.3.9.5 PRINT HEAD on page 159.

Ink cannot be fired normally due to a failure of the parts listed in the Remedy column.

Ink smear (printed area) The paper is contaminated by ink smear in the paper feed path. Check the PF roller for ink smudges, and clean it if any dirt is observed.

Inspect the following parts, and fix any abnormality.

 Pump Cap Unit (PUMP, CAP, ASSY)

See 4.3.9.1 PUMP, CAP ASSY. on page 148.

 The tube of the CAP ASSY., PUMP is disconnected.  The tube of the CAP ASSY., PUMP has become flat.  The cap rubber is broken.  The cleaning blade is broken or some foreign substances have adhered to

the blade.

 There is something wrong with the connection of the ink cartridge, ink holder,

tube, damper, and print head. (Replace the INK SYSTEM, ASSY.)

 The head FFC is not connected correctly.  Print head See 4.3.9.5 PRINT HEAD on page 159.  Main board See 4.3.4.1 BOARD ASSY., MAIN on page 112.

Paper is rubbed against the print head. Widen the platen gap.

TROUBLE SHOOTING Remedies for Print Quality Troubles 82

EPSON Stylus Pro 3800/3800C/3850 Revision A

Symptom Description Remedy

Ink smear (backside) Paper is curled or creased. Change the paper with a normal one.

The paper is contaminated by ink smear in the paper feed path. Check the platen and PF roller for ink smudges, and clean them if any dirt is

observed.

C A U T I O N

The waste ink pads for borderless printing are not securely attached and contaminating paper.

Horizontal banding Paper setting made in the printer driver is wrong. Correct the paper setting.

There is something wrong with paper feeding. Carry out the PF adjustment.

The print head has not been adjusted properly. Carry out the Print Head Slant Adjustment (PF) and the Print Head Slant

The PF belt’s tension is not proper. Carry out the PF Timing Belt Tension Adjustment.

Vertical banding (partly) There is something wrong with the carriage unit movement.

Check the waste ink pads (POROUS PAD, INK WASTE BOX, RIGHT/LEFT) and reattach them correctly.

See Chapter 5 "ADJUSTMENT"..

Check the PF scale (SCALE, PF) for any dirt, and clean it if any dirt is observed. Check the PF encoder (BOARD ASSY., ENCODER, PF) for scratch, dirt, and

clean it if any dirt is observed. Replace the PF encoder (BOARD ASSY., ENCODER, PF).

See 4.3.6.2 ENCODER, PF, ASSY. on page 126.

Adjustment (CR). See Chapter 5 "ADJUSTMENT".

See Chapter 5 "ADJUSTMENT".

Check the CR scale (SCALE, CR) for attachment condition, scratch and dirt, and fix any abnormality.

Check the CR timing belt for scratch and foreign substances, and fix any abnormality.

Check the carriage shaft for foreign substances, and remove them if any. Check that the carriage shaft and the contact points between the carriage unit and

the main frame are properly lubricated. Check the position of the FFC holder of the ink tube, and correct it if it is not

positioned as specified. See Chapter 4 "DISASSEMBLY & ASSEMBLY".

If the PAPER SIZE CHECK in the PRINTER SETUP menu has been set to OFF, the printer carry out a required job even if the paper size setting does not match with the loaded paper. The printer will print on the platen if the loaded paper is smaller than the image size. If not necessary, change the setting to ON.

TROUBLE SHOOTING Remedies for Print Quality Troubles 83

EPSON Stylus Pro 3800/3800C/3850 Revision A

Symptom Description Remedy

Vertical banding (overall) Bi-D and Uni-D adjustments have not been carried out properly. Carry out the Auto Bi-D and the Auto Uni-D adjustments.

See Chapter 5 "ADJUSTMENT".

The carriage unit cannot move smoothly. Check the CR timing belt, and replace it if worn.

Check the CR motor is correctly installed.

Image is grainy The adjustments have not been carried out properly. Carry out the Print Head Slant Adjustment (PF).

See Chapter 5 "ADJUSTMENT".

Carry out the Print Head Slant Adjustment (CR).

See Chapter 5 "ADJUSTMENT".

Carry out the PF Adjustment.

See Chapter 5 "ADJUSTMENT".

Carry out the Auto Bi-D and the Auto Uni-D adjustments.

See Chapter 5 "ADJUSTMENT".

Carry out the PG Position Adjustment.

See Chapter 5 "ADJUSTMENT".

TROUBLE SHOOTING Remedies for Print Quality Troubles 84

DISASSEMBLY & ASSEMBLY

CHAPTER

EPSON Stylus Pro 3800/3800C/3850 Revision A

4.1 Overview

This section describes procedures for disassembling the main components of the product. Unless otherwise specified, disassembled units or components can be reassembled by reversing the disassembly procedure.

 WARNING

Procedures which, if not strictly observed, could result in personal injury are described under the heading “WARNING”.

 CAUTION

“CAUTION” signals a precaution which, if ignored, could result in damage to the equipment.

 CHECK POINT

Important tips for procedures are described under the heading “CHECK POINT”.

 REASSEMBLY

If the assembly procedure is different from the reversed disassembly procedure, the correct procedure is described under the heading “REASSEMBLY”.

 ADJUSTMENT

Any adjustments required after reassembly of components or parts are described under the heading “ADJUSTMENT REQUIRED”. Be sure to perform the specified adjustments with reference to Chapter 5 “ADJUSTMENT”.

When you have to remove any parts or components that are not described in this chapter, refer to “7.3 ASP List” (p267) in the Appendix.

4.1.1 Precautions

Before starting disassembly or reassembly of the product, read the following precautions given under the headings “WARNING” and “CAUTION”.

W A R N I N G

 This printer is equipped with a lithium battery. When handling

the lithium battery, the following precautions should be followed.

x When replacing the battery, replace it with a specified type

of battery. Using a different type of battery may cause excess heat or explosion.

x Dispose of used batteries according to manufacture’s

instructions and local regulations. Contact your local government agency for information about battery disposal and recycling.

x When disposing of the battery, be sure to securely cover the

positive terminal (+) of the battery with a tape to prevent combustion or explosion.

x Do not charge the battery. x Do not use the battery if it is discolored or damaged, or if any

leakage of electrolyte is observed.

x Do not dismantle, solder or heat the battery. Doing so could

result in leakage of electrolyte, heat generation, or explosion.

x Do not heat the battery or dispose of it in fire. x If the electrolyte leaked from the battery contacts with your

skin or gets into your eyes, rinse it off with clean water and see a doctor immediately.

 As the power switch is installed on the secondary side of the

power circuit, power is always supplied unless the power cord is unplugged. Unless otherwise stated, be sure to unplug the power code before disassembling or assembling the printer to prevent electric shock and damage to the circuit.

 Always wear gloves for disassembly and reassembly to avoid

injury from sharp metal edges.

 If ink gets in your eye, flush the eye with fresh water and see a

doctor immediately.

 Never touch the ink or wasted ink with bare hands. If ink

comes into contact with your skin, wash it off with soap and water immediately. If irritation occurs, contact a doctor.

DISASSEMBLY & ASSEMBLY Overview 86

EPSON Stylus Pro 3800/3800C/3850 Revision A

C A U T I O N

 Ensure sufficient work space for servicing.  Locate the printer on a stable and flat surface.  The ink-path-related components or parts should be firmly and

securely installed on the printer to prevent ink from leakage.



Use only recommended tools for disassembly, assembly or adjustment of the printer.

 When using compressed air products; such as air duster, for

cleaning during repair and maintenance, the use of such products containing flammable gas is prohibited.

 Apply lubricants and adhesives as specified.  Be careful not to soil the printer or the floor with the leaked ink

when removing the ink-path-related components or parts. Spread a sheet of paper or cloth on the floor in advance.

 Do not touch electrical circuit boards with bare hands as the

elements on the board are so sensitive that they can be easily damaged by static electricity. If you have to handle the boards with bare hands, use static electricity discharge equipment such as anti-static wrist straps.

 When reassembling the printer, make sure to connect the

connectors of the electric components or parts correctly and securely. Use extreme care when connecting FFCs (flexible flat cables). Improper connection of the FFCs, such as inserting them diagonally into the connectors, could cause shortcircuiting and lead to breakdown of the electric elements on the boards.

 When reassembling the printer, make sure to route the FFCs

and other cables as specified in this chapter. (Failure to do so may cause an unexpected contact of the cables with sharp metal edges, or lead to lower the noise immunity.)

 When the printer has to be operated with the covers removed,

take extra care not to get your fingers or clothes caught in moving parts.

 When you have to remove any parts or components that are

provided as after-service-parts but are not described in this chapter, carefully observe how they are installed and make sure to remember it before removing them.

 When you removed any parts or components that are secured

with black acetate tape or two-sided tape, be sure to reinstall and secure them with the tape as exactly the same as they were.

C A U T I O N

 Disassembling the frame and some components of the printer is

prohibited because they are assembled with precise measurements in 1/100 mm unit at the factory.

DISASSEMBLY & ASSEMBLY Overview 87

EPSON Stylus Pro 3800/3800C/3850 Revision A

4.1.2 Orientation Definition

The following figure defines the orientation of the printer, which is applicable to chapter 4.

Rear

Left

Right

Front

4.1.3 Tools

To protect the printer from damage, use the tools indicated in the following table.

Table 4-1. Tools

Name

Precision screwdriver, No. 2 Commercially

Phillips screwdriver, No. 0 Commercially

Phillips screwdriver, No. 1 Commercially

Phillips screwdriver, No. 2 Commercially

Flat-blade screwdriver Commercially

Long-nose pliers Commercially

Tweezers Commercially

Nipper Commercially

Epson Part

Number

available

Note

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140 mm or longer shaft length is recommended.

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Down

Figure 4-1. Orientation Definition

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EPSON Stylus Pro 3800/3800C/3850 Revision A

4.1.4 Screws

The following table indicates the screws used in the printer.

Table 4-2. Screws

Name Color Definition

Protective Screw Silver Special Screw

C.B.P. 3x8 Silver Phillips Bind P-tite Screw

C.B.S. 3x8 Silver Phillips Bind S-tite Screw

C.B.P. 3x6 Silver Phillips Bind P-tite Screw

C.B.S. 3x6 Silver Phillips Bind S-tite Screw

C.F.S. 3x6 Silver Phillips Flat Head S-tite Screw

C.B.(O) 4x8

C.P.S. 2.6x3 Silver Phillips Pan Head S-tite Screw

C.C.S. 3x4 Silver Phillips Cup Head S-tite Screw

C.B.P. 2.5x8 Silver Phillips Bind Head P-tite Screw

C.B.S. 2.5x4 Silver Phillips Bind Head S-tite Screw

C.B.S. (P4) 3x8 Silver Phillips Bind Head S-tite Screw with Plain Washer 1

C.P.B. 1.7x8 Silver Phillips Pan Head P-tite Screw

Shaft, Mount, Plate Silver

Phillips Bind Head S-tite Screw with Outside Toothed

Green

Lock Washers

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4.1.5 Chapter Organization

The maintenance parts of this product are classified into two groups according to the site they are repaired. Therefore, disassembling procedures are divided into two groups as described below.

 Group 1: For both on-site and off-site services

 Group 2: Applicable to off-site service only.

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4.2 Disassembly Flowchart

Start

COVER, IH, ASSY. (p94)

HOUSING, REAR, ASSY. (p95)

HOUSING, FRONT, LEFT (p97)

HOUSING, LEFT (p102)

HOUSING, FRONT, RIGHT (p98)

HOUSING, FRONT, LEFT (p97)

COVER, PRINTER (p99)

HOUSING, LEFT (p102)

HOUSING, RIGHT (p103)

HOUSING, FRONT, UPPER (p104)

BASE, ENCLOSURE (p110)

HOUSING, RIGHT (p103)

OPERATION, PANEL, ASSY. (p105)

Disassembling the OPERATION, PANEL, ASSY. (p108)

HOUSING, FRONT, LEFT (p97)

HOUSING, FRONT, RIGHT (p98)

COVER, PRINTER (p99)

PAPER, SUPPORT, MANUAL, ASSY.

PAPER, SUPPORT, ASSY. (p101)

OPERATION, PANEL, ASSY. (p105)

HOUSING, UPPER (p106)

BOARD ASSY., MAIN (p112)

BOARD ASSY., POWER SUPPLY

AC INLET (p116)

STACKER, ASSY. (p132)

BOARD PAPER TRAY (p138)

POROUS PAD, INK WASTE BOX, RIGHT/ POROUS PAD, INK WASTE BOX, LEFT (p162)

Parts shown in the dotted-line boxes are not the shortest procedures to remove them, but are necessary to proceed to the next step.

COVER, HOUSING, LOWER (p107)

MOTOR ASSY., APG (p118)

MOTOR ASSY., ASF (p120)

MOTOR ASSY., CR (p121)

LOCK, COVER, ASSY. (p123)

ENCODER, PF, ASSY. (p126)

RELEASE SENSOR (p127)

MAINTENANCE CARTRIDGE SENSOR

SCALE, CR (p130)

STACKER, ASSY. (p132)

BOARD PAPER TRAY (p138)

FRAME, PAPER, EJECT, ASSY (p142)

PUMP, CAP ASSY. (p148)

COVER, CR (p150)

BOARD ASSY., SUB (p117)

APG SENSOR (p129)

PRINT HEAD (p159)

INK, SYSTEM, ASSY. (p151)

POROUS PAD, TRAY, INK EJECT (p158)

PRESSURE, PUMP, ASSY. (p176)

SCALE, PF, 180 (p164)

TIMING BELT, PF (p165)

BASE, ENCLOSURE (p110)

MOTOR, RELEASE, ASSY. (p167)

COVER, HOUSING, LOWER (p107)

MOTOR ASSY., CR (p121)

SCALE, CR (p130)

PUMP, CAP ASSY. (p148)

COVER, CR (p150)

INK, SYSTEM, ASSY. (p151)

PRINT HEAD (p159)

ASF, ASSY. (p179)

PULLEY, DRIVEN, ASSY. (p183)

ASF SENSOR (p184)

PAPER, DETECTOR, ASSY. (p185)

MOTOR, RELEASE, ASSY. (p167)

SHAFT, RELEASE, ASSY. (p187)

PAPER, DETECTOR, ASSY. (p185)

Group 1

CARRIAGE, ASSY. (p169)

BOARD ASSY., ENCODER (p172)

BOARD ASSY., INK MARK (p173)

BOARD ASSY., DETECTOR, PW; B

BELT, CR (p175)

Group 2

SHAFT, RELEASE, ASSY. (p187)

PAPER GUIDE, UPPER, ASSY. (p188)

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4.3 Disassembly/Assembly Procedure (Group 1)

This section describes disassembly/assembly procedures required for both on-site and off-site servicing.

4.3.1 Unlocking the CARRIAGE, ASSY. manually

1. Remove the HOUSING, RIGHT. (p103)

2. While pressing the carriage lock release gear in the direction of the arrow, turn it counterclockwise until it stops to unlock the CARRIAGE, ASSY.

To lock the CARRIAGE, ASSY., put it back to the home position and turn the release gear clockwise.

Carriage Lock

Release Gear

Figure 4-2. Unlocking the CARRIAGE, ASSY.

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4.3.2 Consumable

4.3.2.1 Ink Cartridge

1. Turn the printer ON.

2. Hold down the Ink Cover Open/Up button on the operation panel for more than three seconds. The COVER, IH, ASSY. will be unlocked and slightly opened.

3. Open the COVER, IH, ASSY.

4. Press the Ink Lever of the each Ink Cartridge to release the lock.

5. Remove the Ink Cartridges.

C A U T I O N

 Never touch the IC chips on the Ink Cartridges. Doing so may

cause a detection error of the Ink Cartridges or a malfunction of the printer.

 Never touch the ink supply port of the Ink Cartridges as ink

may leak from the port.

IC Chip

Ink Cover Open/UP Button

COVER, IH,

ASSY.

Figure 4-3. Opening the COVER, IH, ASSY.

Ink Cartridge

Ink Supply Port

Figure 4-4. Removing the Ink Cartridges

Ink Lever

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4.3.2.2 Maintenance Cartridge

1. Open the COVER, WB.

2. Slightly lift the Maintenance Cartridge and pull it out from the main unit.

C A U T I O N

Never touch the IC chip on the Maintenance Cartridge. Doing so may cause a detection error of the Maintenance Cartridge or a malfunction of the printer.

COVER, WB

Figure 4-5. Opening the COVER, WB

IC Chip

Maintenance Cartridge

Figure 4-6. Removing the Maintenance Cartridge

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4.3.3 Removing the Housing and OPERATION, PANEL,

ASSY.

4.3.3.1 COVER, IH, ASSY.

guide pin

C A U T I O N

1. Open the COVER, IH, ASSY.

2. Press the right side of the COVER, IH, ASSY. in the direction of the arrow to release the guide pin from the main unit. Then disengage the left guide pin, and remove the COVER, IH, ASSY.

As the COVER, IH, ASSY is locked by the electric system, be sure to open the COVER, IH, ASSY. with the power turned on. Never force the COVER, IH, ASSY. open, or the lock system (LOCK, COVER, ASSY.) may be broken. (Refer to “4.3.2.1 Ink Cartridge”

(p92) for releasing the lock.)

COVER, IH, ASSY.

Figure 4-7. Removing the COVER, IH, ASSY.

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4.3.3.2 HOUSING, REAR, ASSY.

1. Remove the five screws that secure the HOUSING, REAR, ASSY. and remove it.

 Four C.B.P. 3 x 6 screws (6 ± 1 kgf.cm)  One C.B.S. 3 x 8 screw (6 ± 1 kgf.cm)

C.B.S. 3x8

C.B.P. 3x6

Figure 4-8. Removing the HOUSING, REAR, ASSY

HOUSING, REAR, ASSY.

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Install the HOUSING, REAR, ASSY. so that all the points mentioned below are securely engaged.

Fig. Position of the points Main unit HOUSING, REAR, ASSY.

A Right side Two positioning holes Two guide pins

B Right side One positioning hook One positioning tab

C Left side Two positioning holes Two guide pins

D Left side One positioning hook One positioning tab

E Right rear side One positioning hook One positioning tab

F Left rear side One positioning hook One positioning tab

HOUSING, REAR, ASSY.

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4.3.3.3 HOUSING, FRONT, LEFT

1. Open the STACKER, C.

2. Remove the screw that secures the HOUSING, FRONT, LEFT to the main unit.

 One C.B.P. 3 x 8 screw (6 ± 1 kgf.cm)

3. Pull the upper part of the HOUSING, FRONT, LEFT toward you to release the upper rib and the two lower hooks, and remove the HOUSING, FRONT, LEFT.

Be sure to engage the two lower hooks with the cutouts, and align the positioning socket with the rib on the main unit.

C.B.P. 3x8

HOUSING, FRONT, LEFT

rib

STACKER, C

hooks

Figure 4-9. Removing the HOUSING, FRONT, LEFT

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4.3.3.4 HOUSING, FRONT, RIGHT

1. Open the STACKER, C.

2. Remove the screw that secures the HOUSING, FRONT, RIGHT to the main unit.

 One C.B.P. 3 x 8 screw (6 ± 1 kgf.cm)

3. Pull the upper part of the HOUSING, FRONT, RIGHT toward you to release the upper rib and the two lower tabs, and remove the HOUSING, FRONT, RIGHT.

Be sure to engage the two lower tabs with the cutouts, and align the positioning socket with the rib on the main unit.

rib

C.B.P. 3x8

HOUSING, FRONT, RIGHT

tabs

STACKER, C

hooks

Figure 4-10. Removing the HOUSING, FRONT, RIGHT

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4.3.3.5 COVER, PRINTER

1. Open the COVER, PRINTER.

2. Widen the parts shown in Figure 4-11 to release the COVER, PRINTER from the two bosses (left and right), and remove the COVER, PRINTER.

COVER, PRINTER

Figure 4-11. Removing the COVER, PRINTER

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4.3.3.6 PAPER, SUPPORT, MANUAL, ASSY.

1. Remove the PAPER, SUPPORT, MANUAL, ASSY. upward.

Be sure to engage all the hooks (two on the upper part , five on the lower part ) of the PAPER, SUPPORT, MANUAL, ASSY. with the main unit.

PAPER, SUPPORT, MANUAL, ASSY.

Figure 4-12. Removing the PAPER, SUPPORT, MANUAL, ASSY.

DISASSEMBLY & ASSEMBLY Disassembly/Assembly Procedure (Group 1) 100

Epson Stylus Pro 3800, Stylus Pro 3800C, Stylus Pro 3850 Service Manual

Specifications and Main Features

Frequently Asked Questions

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