Epson 830 User Manual
®
SERVICE MANUAL
Color Inkjet Printer
EPSON Stylus PHOTO 810/820/830
SEIJ01006
Notice
All rights reserved. No p art of t his manual may be reprod uced, stored i n a ret rieval sy stem, or t ransmit ted in any form or by a ny means el ectroni c,
mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
The contents of this manual are subject to change witho ut 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 identif ic ation purp ose only and may be trademarks or registe red tr ademarks of thei r respec-
tive owners. EPSON disclaims any and all rights in those marks.
Copyright ©
TPCS Quality Assurance Dept.
2000 SEIKO EPSON CORPORATION.
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 DISCO NNECT 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 INJURIER 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
SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE
EPSON WARRANTY.
About This Manual
ADJUSTMENT
REQUIRED
CAUTION
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 fo r 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 Epson-approved lubricants and adhesives
required for servicing the product.
CHAPTER 7.APPENDIX
Provides the following additional information for
reference:
• Connector pin assignments
• Electric circuit boards components layout
• Electrical circuit boards schematics
• Exploded diagram & Parts List
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, if not strictly observed, could result in
injury or loss of life.
Indicates an operating or maintenan ce pr ocedure, practi ce,
or condition that, if not strictly observed, could result in
damage to, or destruction of, equipment.
CHECK
PO INT
W ARNING
May indicate an operating or maintenance procedure,
practice or condition that is necessar y to accomplish a task
efficiently. It may also provid e additional information that is
related to a specific subject, or comment on the results
achieved through a previous action.
I.ndicates an operating or maintenance procedure, practice
or condition that, if not strictly obser ved, could result i n 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 Issued Date Description
A 2001/8/23 First Release
Addition of Stylus Photo 830
Page 10, 11: The description in the “1.2.4.3 Exclusive Paper” was added.
Page 16 : The description in the “1.2.9 Reliability/1.2. 10 Safety Approvals/1.2.11
Acoustic Noise/1.2.12 CE Marking” was added.
Page 21 : The description in the “1.3.2 Parallel Interface Device ID” was added.
Page 24 : The description in the “1.4 Panel Control” was added.
* Section 2
Page 28 : The description in the “2.1 Overview” was added.
Page 29 : The description in the “2.1.2 Printhead” was added.
Page 31 : The description in the “2.1.3 Carriage Mechanism” was added.
Page 32 : The description in the 2.1.4 Paper Load/Feed Mechanism” was added.
Page 42 : The description in the “2.2. Electrical Circuit Operating Principles” was added.
Page 43 : The description in the “2.2.1 P/S baord” was added.
Page 45, 46 : The description in the “2.2.1.2 C482 PSH board” was added.
Page 53-58 : The description in the “2.2.3 C483/C484 Main-B board”/”2.2.3.1 Main
B 2002/9/10
elements”/”2.2.3.2 Printhead Drive Circuit”/”2.2.3.3 PF/CR motor Drive
Circuit”/”2.2.3.4 Reset Regulator Circuit”/” 2.2.3. 5 EEPROM Control Circuit”
/”2.2.3.6 Sensor Circuit”.2 Printhead Driver Circuit” was amended.
* Section 3
Page 60 : The description in the “3.1 Overview” was added.
* Section 4
Page 91, 92 : The description in the “4.2 Difference on the Printer Mechanism between
SP810/820 and SP820/830” was added.
* Section 5
Page 127, 128 : The description in the “5.1 Required Adjustment” was amended.
* Section 7
Page 136-138 : The description in the “7.1.1 Major Component Unit” was added.
Page 142-145 : The description in the “7.1.2 EEPROM Adress Map” was added.
Page 154-158 : The description in the “7.3 Exploded Diagram” was added.
Page 160 : The description in the “7.4 Part List” was added.
Page 164, 167 : The diagram in the “7.5 Electrical Circuits” was added.
CONTENTS
PRODUCT DESCRIPTION
FEATURES ..................................... ...... ....... ...... ....... ...... ....... ...... ....... ........... 7
SPECIFICATIONS. ....... ...... ...... ....... ...... ......................................................... 8
Physical Specification................................................................................ 8
Printing Specification................................................................................. 8
Paper Feeding........................................................................................... 9
Paper Specification ................................................................................... 9
Printing Area............................................................................................ 12
Ink Cartridge Specification ...................................................................... 13
Electric Specification ............................................................................... 14
Environmental Condition ......................................................................... 15
Reliability................................................................................................. 16
Safety Approvals ..................................................................................... 16
Acoustic Noise......................................................................................... 16
CE Marking.............. ............................................. ................................... 16
INTERFACE................................................................................................. 17
Parallel Interface (Forward Channel) ...................................................... 17
Parallel Interface (Reserve Channel) ...................................................... 20
USB Interface.......................................................................................... 22
Prevention Hosts of Data Transfer Time-out........................................... 22
Interface Selection................................................................................... 22
IEEE1284.4 Protocol............................................................................... 22
PANEL CONTROL ....................................................................................... 24
Indicators (LEDs)..................................................................................... 24
Panel Functions....................................................................................... 24
Printer Condition and Panel Status......................................................... 25
Error Status............................................................................................. 25
Printer Initialization.................................................................................. 26
Operating Principles
Overview ...................................................................................................... 28
Printer Mechanism .................................................................................. 28
Printhead................................................................................................. 29
Carriage Mechanism ............................................................................... 31
Paper Loading/Feeding Mechanism ....................................................... 32
Ink System Mechanism ........................................................................... 37
Ink Sequence .......................................................................................... 40
Electrical Circuit Operating Principles .......................................................... 42
P/S board ................................................................................................ 43
C417/C418 Main/Main-B Board .............................................................. 47
C483/C484 MAIN-B Board...................................................................... 53
Troubleshooting
Overview ...................................................................................................... 60
Troubleshooting with LED Error Indications
and Status Monitor 3 Message............................................................. 61
Unit Level Troubleshooting........................................................................... 66
Disassembly and Assembly
Overview ...................................................................................................... 88
Precautions ............................................................................................. 88
Tools ....................................................................................................... 89
Screws.................................................................................................................. 89
Work Completion Check ......................................................................... 90
Difference on Printer Machanism between
SP810/820 and SP820/830.................................................................. 91
Caution in reassembling to ink leakage problem .................................... 92
Disassembly................................................................................................. 93
Upper housing removal ........................................................................... 94
Printhead removal ................................................................................... 96
CR unit removal....................................................................................... 98
CR motor removal ................................................................................. 101
ASF unit removal................................................................................... 102
PSB/PSE unit removal .......................................................................... 104
Holder shaft unit removal ...................................................................... 107
Circuit board removal ............................................................................ 111
Waste drain ink pad (under the ASF unit) removal ............................... 114
Lower housing removal ......................................................................... 115
Caution regarding Ink system removal, PF roller
unit removal and PF motor removal .......................................... 119
Ink system unit removal
(Cap unit, Pump unit & Waste drain ink pad) ........................................ 120
PF roller unit removal ............................................................................ 123
PF motor removal.................................................................................. 125
Adjustment
Overview..................................................................................................... 127
Required Adjustment............................................................................. 127
Maintenance
Overview..................................................................................................... 130
Cleaning................................................................................................ 130
Service Maintenance........... ....... ...... ....... ...... ....... ................................. 130
Lubrication............................................................................................. 132
Appendix
Connector Summary................................................................................... 136
Major Component Unit .......................................................................... 136
EEPROM Address Map......................................................................... 139
Component Layout ..................................................................................... 146
Exploded Diagram...................................................................................... 148
Parts List..................................................................................................... 159
Electrical Circuits........................................................................................ 161
PRODUCT DESCRIPTION
CHAPTER
1
EPSON Stylus PHOTO 810/820/830 Revision B
1.1 FEATURES
The major features of EPSON color inkjet dot matrix printer EPSON Stylus PHOTO
810/820/830 are:
High Color Print Quality
2880 (H) X 720 (V) dpi printing
Six Color Printing (YMCKmc)
Traditional and New Microweave
Built-in Auto Sheet Feeder
Holds 100 cut-sheets (65g/m2)
Holds 10 envelopes
Holds 10 transparency films
Two built-in Interfaces
Bi-directional parallel I/F (IEEE-1284 level 1 device)
USB
Windows/Macintosh exclusive
* The above “High Color Print Quality/Built-in Auto Sheet Feeder/Two built-in
Interface/Windows, Macintoshi exclusive“ is the specification common to all
models.
Figure 1-1. Product’s external view
PRODUCT DESCRIPTION FEATURES 7
EPSON Stylus PHOTO 810/820/830 Revision B
1.2 SPECIFICATIONS
This section covers specifications of the printer.
Print Direction
Bi-direction with logic seeking
Print Speed & Printable Columns
1.2.1 Physical Specification
Weight : 3.42 kg (without the ink cartridges)
Dimension
[Stylus Photo 810/820]
Printing : 479.6 mm (W) x 509 mm (D) x 271.8 mm (H)
[Stylus Photo 820/830]
Printing : 477.3 mm (W) x 475.7 mm (D) x 269 mm (H)
Storage : 477.3 mm (W) x 258.4 mm (D) x 181.2 mm (H)
1.2.2 Printing Specification
Print Method
On demand i nk jet
Nozzle Configuration
Monochrome 48 nozzles
Color 48 nozzles x 5 (Cyan, Magenta, Yellow, Light Cyan, Light Magenta)
#48
#47
#46
120 dpi
#48
#47
#46
(Common to all models)
#48
#47
#46
Table 1-1. Character mode (Black only)
Character pitch Character quality Pr i ntable colu mn s CR speed
10 CPI LQ 80 238 CPS*
*CPS: Characters/Second
Table 1-2. Raster graphics mode (Stylus Photo 810/820)
Horizontal
resolution
360 dpi
(Normal dot)
360 dpi
(Multi shot 3 dot)
720 dpi 209.8 mm (8.26 inch) 5952 50.80 cm/s (20 IPS*)
1440 dpi 209.8 mm (8.2 6 inc h ) 11904 50.80 cm/s (20 IPS*)
Printable area Available dot CR speed
209.8 mm (8.26 inch) 2976 86.36 cm/s (34.0 IPS*)
209.8 mm (8.26 inch ) 2976 60.452 cm/s (23.8 IPS*)
Table 1-3. Raster graphics mode (Stylus Photo 820/830)
Horizontal
resolution
360 dpi
(Normal dot)
Printable area Available dot CR speed
209.8 mm (8.26 inch) 2976 78.99 cm/s (31.1 IPS*)
(Black
#3
#2
(Cyan
#3
#2
(Light Cyan)
(Magenta
7.902
(112/360inch)
(Light magenta)
#3
#2
(Yellow)
2.2578
(32/360inch)
360 dpi
(Multi shot 3 dot)
720 dpi 209.8 mm (8.26 inch) 5952 48.26 cm/s (19 IPS*)
1440 dpi 209.8 mm (8.2 6 inc h ) 11904 48.26 cm/s (19 IPS*)
* IPS: Inch/Second
209.8 mm (8.26 inch ) 2976 60.45 cm/s (23.8 IPS*)
Figure 1-2. Nozzle configuration
PRODUCT DESCRIPTION SPECIFICATIONS 8
EPSON Stylus PHOTO 810/820/830 Revision B
CAUTION
Control Code
ESC/P Raster command
1.2.4 Paper Specification
1.2.4.1 Plain Paper
EPSON Remote command
Character Tables
None
- ASCII 96 Codes (Code Number 20H-7FH)
International character sets
None
Typeface
Bit map LQ font : EPSON Courier 10 CPI
Input Data Buffer
32 KB
Item
A4 210 297
Letter 215.9 279.4
Legal 215.9 355.6
Executive 184.2 266.7
Half Letter 139.7 215.9
B5 182 257
A5 148 210
Width
(mm)
Table 1-5. Plain paper
Length
(mm)
Thickness
(mm)
0.08-0.11
(17-24(lb))
Weight
(g/m
64-90
2
)
Quality
Plain paper
Reclaimed paper
1.2.3 Paper Feeding
Feeding Method
Friction feed with ASF
Paper Path
Cut-sheet ASF (Top entry Front out)
Feed Speed
Feed condition Time Speed
10.16 mm (0.4 inch) feed 110 msec 92.36 mm (3.64 inch)/sec
Continuous feed 140 msec 139.7 mm (5.5 inch)/sec
Table 1-4. Feed spee d
A6 105 148
User
defined
89-241.3 89-1117.6
Poor quality paper may reduce print quality and cause paper
jams or other problems. If you encounter problems, switch to a
higher grade of paper.
Do not load curled or folded paper.
Use paper under normal conditions : Temperature 15 to 25
°°°°
to 77
F) Humidity 40 to 60% RH
°°°°
C (59
PRODUCT DESCRIPTION SPECIFICATIONS 9
EPSON Stylus PHOTO 810/820/830 Revision B
1.2.4.2 Envelope
Table 1-6. Envelope
Item
No.10 241.3 104.8
DL 220 110
C6 162 114
Envelope
220*132
Width
(mm)
220 132
* Envelope printing is only available at normal temperature.
Keep the longer side of the envelope horizontally at setting.
CAUTION
Poor quality paper may reduce print quality and cause paper
jams or other problems. If you encounter problems, switch to a
higher grade of paper.
Do not load curled or folded paper.
Use paper under normal conditions : Temperature 15 to 25
°°°°
to 77
F) Humidity 40 to 60% RH
Length
(mm)
Thickness
(mm)
N/A
Weight
2
)
(g/m
45-75
(12-20(lb))
Quality *
Bond paper
Air mail
PPC
°°°°
C (59
1.2.4.3 Exclusive paper
Quality: EPSON Exclusive paper
Transparency printing is only available at normal temperature
Table 1-7. Exclusive paper
Item Size
Photo Quality
Ink Jet Paper
Photo Quality
Ink Jet Card
360dpi Ink Jet Pape r
Premium Luster
Photo Paper
Width
(mm)
A4 210 297
Letter 215.9 279.4
B5 182 257
5*8 127 203.2
A6 105 148
A4 210 297
Letter 215.9 279.4
Letter 215.9 279.4 0.27 250 (66lb)
Length
(mm)
Thickness
(mm)
102 (27lb) *
0.13
102 (27lb)Legal 215.9 355.6
0.21 180 (48lb)8*10 203.2 254
0.11 89 (24lb)
Weight
(g/m
2
)
Ink Jet Transparencies
Photo Quality
Glossy Film
Matte PaperHeavyweight
A4 210 297
0.13 N/A
Letter 215.9 279.4
A4 210 297
0.13 N/ALetter 215.9 279.4
A6 105 148
A4 210 297
0.23 167(44Ib)
Letter 215.9 279.4
PRODUCT DESCRIPTION SPECIFICATIONS 10
EPSON Stylus PHOTO 810/820/830 Revision B
CAUTION
Table 1-7. Exclusive paper
Item Size
A4 210 297
Letter 215.9 279.4
Photo Paper
Photo Quality Self
Adhesive Sheets
Photo Stickers 16 A6 105 148 0.19 167 (44lb)
Photo Stickers 4 A6 105 148 0.19 167 (44lb)
Iron-On Cool Peel
Transfer Paper
Premium Glossy
Photo Paper
Premium Semigloss
Photo Paper
Card 100 148
Photo Paper
4*6
Panorama 210 594
A4 210 297 0.19 167 (44lb)
A4 210 297
Letter 215.9 279.4
A4 210 297
Letter 215.9 279.4
A4 210 297
Letter 215.9 279.4
Width
(mm)
113.6 175.4
Length
(mm)
Thickness
(mm)
0.23 194 (52lb)
0.18 124 (33lb)
0.27 255 (68lb)
0.27 250 (66lb)
Weight
(g/m
Poor quality paper may reduce print quality and cause paper
2
)
jams or other problems. If you encounter problems, switch to a
higher grade of paper.
Do not load curled or folded paper.
Use paper under normal conditions : Temperature 15 to 25
°°°°
to 77
F) Humidity 40 to 60% RH
EPSON Photo Quality G lossy Film and Self Adhesive Sheets
°°°°
C (59
should be stored under the following conditions :
Temperature 15 to 30
°°°°
C (59 to 86
°°°°
F) Humidity 20 to 60% RH
Premium Ink Jet
Plain Paper
Bright White
Ink Jet Paper
Color Life Photo Paper
**
A4 210 297 0.11 80 (21lb)
A4 210 29 7 0.13 92.5 (25lb)
A4 210 297 0.25 245 (65lb)
* 98 (26lb) for EU
** Photo Quality Ink Jet Card (size : Post Card)/Color Life Photo: Stylus Photo
820/830
PRODUCT DESCRIPTION SPECIFICATIONS 11
EPSON Stylus PHOTO 810/820/830 Revision B
1.2.5 Printing Area
1.2.5.1 Cut Sheet
Refer to the following table. As for each margin area, refer to Figure 1-3.
Table 1-8. Printing area
Paper size
A4 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)
Letter 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)
B5 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)
Legal 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)
Statement 3 mm (0.12 ”) 3 mm (0.12”) 3 mm (0.12”)
Executive 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)
Left margin
(min.) **
* Bottom margin can be set to 3mm when the paper length is designated with
“ESC (S” command). However, the printing quality is not guaranteed in the
area, ranging from 3mm to 14mm, from the form lower end. When the paper
length is not designated, the bottom margin must be wider than 14mm.
(Printable area A)
Right margin
(min.) **
Top margin
(min.) **
Black bottom margin
(min.) **
14 mm (0.54”) / 3mm
(0.12”) *
14 mm (0.54”) / 3mm
(0.12”) *
14 mm (0.54”) / 3mm
(0.12”) *
14 mm (0.54”) / 3mm
(0.12”) *
14 mm (0.54”) / 3mm
(0.12”) *
14 mm (0.54”) / 3mm
(0.12”) *
LM
PW
Printable area A
Printable area B
RM
TM
PL
BM
** When all margins (Left / Right / Top / Bottom) can be set to 0mm at minimum
only when the “no margin” is checked on the printer driver. However, the
Figure 1-3. Printable area for cut sheet
printing quality is not guaranteed in the area, ranging from 0mm to 3mm,
from the form lower end.
PRODUCT DESCRIPTION SPECIFICATIONS 12
EPSON Stylus PHOTO 810/820/830 Revision B
(Rib area)
(Rib area)
1.2.5.2 Envelopes
Refer to the following table. As for each margin area, refer to Figure 1-4.
Table 1-9. Envelope margin
Paper size
#10 3 mm (0.12”) 28 mm (1.10”) 3 mm (0.12”) 14 mm (0.55”)
DL 3 mm (0.12”) 7 mm (0.28”) 3 mm (0.12”) 14 mm (0.55”)
C6 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.55”)
LM
Left margin
(min.)
Right margin
(min.)
Printable area
Top margin
(min.)
Bottom margin
(min.)
RM
TM
1.2.6 Ink Cartridge Specification
1.2.6.1 Black Ink Cartridge
Type : Exclusive Cartridge
Color : Black
Print Capacity : 540 pages/A4
(ISO/IEC 10561 Letter Pattern at 360 dpi)
Ink Life : 2 years from production date
Storage Temperature:
Storage -20 oC to 40 oC (within a month at 40 oC)
Packing -30 oC to 40 oC (within a month at 40 oC)
Transit -30 oC to 60 oC (within 120 hours at 60 oC
and within a month at 40
Dimension : 20.1 mm (W) x 66.85 mm (D) x 38.5 mm (H)
o
C)
BM
Figure 1-4. Printable area for envelopes
Figure 1-5. Black ink cartridge
PRODUCT DESCRIPTION SPECIFICATIONS 13
EPSON Stylus PHOTO 810/820/830 Revision B
1.2.6.2 Color Ink Cartridge
Type : Exclusive Cartridge
Color : Magenta, Cyan, Yellow, Light Cyan, Light Magenta
Print Capacity : 220 pages / A4 (360 dpi, 5% duty each color)
Ink Life : 2 years from production date
Storage Temperature:
Storage -20 oC to 40 oC (within a month at 40 oC)
Packing -30 oC to 40 oC (within a month at 40 oC)
Transit -30 oC to 60 oC (within 120 hours at 60 oC
and within a month at 40
Dimension : 49.1 mm (W) x 66.85 mm (D) x 38.5 mm (H)
o
C)
(Rib area)
1.2.7 Electric Specification
[120V Version] (Stylus Photo 810/820)
Rated Voltage : AC120V
Input Voltage Range : AC90∼132V
Rated Frequency Range : 50∼ 60Hz
Input Frequency Range : 49.5∼ 60.5Hz
Rated Current : 0.4A
Power Consumption : Approx. 17W (ISO10561 Letter Pattern)
Approx. 4W in standby mode
Energy Star compliant
Insulation Resistance : 100M ohms min.
(between AC line and chassis, DC 500V)
Dielectric Strength : AC 1000V rms. 1 minute or
AC 1200V rms. 1 second
(between AC line and chassis)
[220 ∼ 240V Version] (Stylus Photo 810/820)
Rated Voltage : AC220V∼240V
Input Voltage Range : AC198∼264V
Rated Frequency Range : 50∼60Hz
Input Frequency Range : 49.5∼60.5Hz
Rated Current : 0.2 A
Power Consumption : Approx. 17W (ISO10561 Letter Pattern)
Approx. 4.5W in standby mode
(Rib area)
Figure 1-6. Color ink cartridge
Note 1: Ink cartridge can not re-fill, only ink cartridge is prepared for article
of consumption.
Note 2: Do not use the ink cartridge which was passed away the ink life.
Note 3: Ink will be frozen under -18 ~ -21
usable after placing it more than 3 hours at room temperature.
o
C environment, however it will be
Insulation Resistance : 100M ohms min.
Dielectric Strength : AC 1500V rms. 1 minute
Energy Star compliant
(between AC line and chassis, DC 500V)
(between AC line and chassis)
PRODUCT DESCRIPTION SPECIFICATIONS 14
EPSON Stylus PHOTO 810/820/830 Revision B
[UPS Version] (Stylus Photo 820/830)
Rated voltage : AC100~240V
Input voltage range : AC99∼264V
Rated frequency range : 50∼ 60Hz
Input frequency range : 49.5∼ 60.5Hz
Rated current : 0.4~0.2A
Power consumption: : Approx. 18W (ISO10561 Letter Pattern)
Approx. 4W in standby mode
Approx. 0.6W (Power Off Mode)
Insulation resistance : 10M ohms min.
(between AC line and chassis, DC 500V)
Dielectric strength : AC 1000V rms. 1 minute or
AC 1200V rms. 1 second
(between AC line and chassis)
1.2.8 Environmental Condition
Temperature
Operating : 10 to 35°C (refer to Figure 1-7)
Non-operating : -20 to 60°C (with shipment container)
1 month at 40°C and 120 hours at 60°C
Humidity
Operating : 20 to 80% RH
(without condensation / refer to Figure 1-7)
Non-operating : 5 to 85% RH
(without condensatio n / with shipm ent container)
Resistance to Shock
Operating : 1G, within 1 ms
Non-operating : 2G, within 2 ms (with shipment container)
Resistance to Vibration
Operating : 0.15G
Non-operating : 0.50G (with shipment container)
90
80
70
60
Humidity (%)
50
40
30
20
27
10
20
35
30
40
Temperature (°C)
Figure 1-7. Temperature/Humidity range
PRODUCT DESCRIPTION SPECIFICATIONS 15
EPSON Stylus PHOTO 810/820/830 Revision B
1.2.9 Reliability
Total Print Volume : 16,000 pages (A4, Letter)
or 5 years although less than 16,000 pages printing
Print Head Life : 3 billion dots/nozzle
: 3 billion dots/nozzle
or 5 years although less than 3 billion dots/nozzle
(Stylus Photo 810/820)
1.2.10 Safety Approvals
[120V Version] (Stylus Photo 810/820)
Safety Standards : UL1950
CSA22.2 No.950
EMI : FCC part15 subpart B Class B
CSA C108.8 Class B
[220∼240V Version] (Stylus Photo 810/820)
Safety Standards: : EN60950 (VDE)
EMI : EN55022 (CISPR Pub.22) Class B
AS/NZS 3548 Class B
[UPS Version] (Stylus Photo 820/830)
(Stylus Photo 810/820)
1.2.11 Acoustic Noise
Level
(Stylus Photo 810/820)
Level
(Stylus Photo 820/830)
: Approx. 45dB(A) (According to ISO 7779)
: Approx. 48dB(A) (According to ISO 7779)
1.2.12 CE Marking
[220∼240V Version]
Low Voltage Directive 73/23/EEC : EN60950
EMC Directive 89/336/EEC : EN55022 Class B
EN61000-3-2
EN61000-3-3
EN50082-1
IEC801-2
IEC801-3
IEC801-4
[UPS Version] (Stylus Photo 820/830)
Low voltage directive 73/23/EEC : EN60950
EMC directive 89/336/EEC : EN55022 Class B
EN61000-3-2
EN61000-3-3
EN55024
Safety standards: : UL1950
CSA C22.2 No.950
: EN 60950 (VDE)
EMI : FCC part 15 subpart B Class B
CSA C108.8 Class B
: EN 55022 (CISPR Pub.22) class B
: AS/NZS 3548 class B
PRODUCT DESCRIPTION SPECIFICATIONS 16
EPSON Stylus PHOTO 810/820/830 Revision B
1.3 INTERFACE
The EPSON Stylus PHOTO 810/820/830 provides USB and parallel interface as
standard.
1.3.1 Parallel Interface (Forward Channel)
Transmission Mode : 8 bit parallel, IEEE-1284 compatibility mode
Synchronization : By STROBE pulse
Handshaking : BY BUSY and ACKNLG signal
Signal Level : TTL compatible level
Adaptable Connector : 57-30360 (amphenol) or equivalent
BUSY signal is set high before setting either -ERROR low or PE high, and held high
until all these signals return to their inactive state.
BUSY signal is at high level in the following cases.
During data entry (see data transmission timing)
When input data buffer is full
During -INIT signal is at low level or during hardware initialization
During printer error (see -ERROR signal)
When the parallel interface is not selected
ERROR signal is at low level when the printer is in one of the following states.
Printer hardware error (fatal error)
Paper-out error
Paper-ja m error
Ink-out error
No ink-cartridge
DATA
data byte n
hold
t
-STROBE
stb
setup
t
t
BUSY
ready
t
t
busy
-ACKNLG
t
reply
t
nbusy
t
ack
Figure 1-8. Data transmission timing
Table 1-10. Data transmission timing
Parameter Minimum Maximum
tsetup 500ns -
thold 500ns -
tstb 500ns -
tready 0 -
tbusy - 500ns
tt-out* - 120ns
tt-in** - 200ns
treply 0 -
tack 500ns 10us
tnbusy 0 -
tnext 0 -
data byte n+1
next
t
Maintenance request
PE signal is at high level during paper-out error.
* Rise and fall time of every output signals
** Rise and fall time of every input signals
*** Typical timing of tack is shown on the following page.
PRODUCT DESCRIPTION INTERFACE 17
EPSON Stylus PHOTO 810/820/830 Revision B
Table 1-11. Typical time of tack
Parallel I/F mode Typical time of tack
High Speed 0.5us
Normal Speed 2us
Table 1-12. Signal level: TTL compatible (IEEE-1284 level 1 device)
Parameter Minimum Maximum Condition
VOH* - 5.5V
VOL* -0.5V -
IOH* - 0.32mA VOH = 2.4V
IOL* - 12mA VOL = 0.4V
CO - 50pF
VIH - 2.0V
VIL 0.8V -
IIH - 0.32mA VIH = 2.0V
IIL - 12mA VIL = 0.8V
CI - 50pF
* A low logic level on the Logic H signal is 2.0V or less when the printer
is powered off and this signal is equal or exceeding 3.0V when the
printer is powered on. The receiver shall provide an impedance
equivalent to 7.5K ohm to ground.
Table 1-13. Connector pin assignment and signals
Pin No. Signal n ame
1 -STROBE 19 In
2 DATA0 20 In
3 DATA1 21 In
4 DATA2 22 In
5 DATA3 23 In
6 DATA4 24 In
7 DATA5 25 In
8 DATA6 26 In
9 DATA7 27 In
10 -ACKNLG 28 Out
11 BUSY 29 Out
12 PE 28 Out A high signal indicates paper-out error.
13 SLCT 28 Out
14 -AFXT 30 In Not used.
Return
GND pin
In/Out Functional description
The strobe pulse. Read-i n of da ta is
performed at the falling edge of this
pulse.
The DATA0 through DATA7 signals
represent data bits 0 to 7, respectively.
Each signal is at high level when data is
logical 1 and low level when data is
logical 0.
This signal is a nega tive pulse indicating
that the printer can accept data ag ai n.
A high signal indicates that the printer
cannot receive da ta .
Always at high level when the printer is
powered on.
The falling edge of a negative pulse or a
31 -INIT 30 In
32 -ERROR 29 Out
36 -SLIN 30 In Not used.
18 Logic H - Out Pulled up t o +5V via 3.9 K ohm resistor.
low signal on this line causes the printer
to initialize. Minimum 50us pulse is
necessary.
A low signal indicates printer error
condition.
PRODUCT DESCRIPTION INTERFACE 18
EPSON Stylus PHOTO 810/820/830 Revision B
Table 1-13. Connector pin assignment and signals (continued)
Pin No. Signal name
35 +5V - Out Pulled up to +5V via 3.3K ohm resistor.
17 Chassis GND - - Chassis GND.
16,33,
19-30
15,34 NC - - Not connected.
NOTE:
GND - - Signal GND.
In/Out refers to the direction of signal flow from the printer’s point of
Return
GND pin
In/Out Functional description
view.
PRODUCT DESCRIPTION INTERFACE 19
EPSON Stylus PHOTO 810/820/830 Revision B
1.3.2 Parallel Interface (Reserve Channel)
Transmission Mode : IEEE-1284 nibble mode
Adaptable Connector : See forward channel
Synchronization : Refer to the IEEE-1284 specification
Handshaking : Refer to the IEEE-1284 specification
Data Trans. Timing : Refer to the IEEE-1284 specification
Signal Level : IEEE-1284 level 1 device
See forward channel.
Table 1-14. Connector pin assignment and signals
Pin No. Signal name
1 HostClk 19 In Host clock signal .
2 DATA0 20 In
3 DATA1 21 In
4 DATA2 22 In
5 DATA3 23 In
6 DATA4 24 In
7 DATA5 25 In
8 DATA6 26 In
9 DATA7 27 In
Return
GND pin
In/Out Functional des cri p tion
The DATA0 through DATA7 signals
represent data bit s 0 to 7, re sp e ct i ve ly .
Each signal is at high level when data is
logical 1 and low level when data is
logical 0.
These signals are used to transfer the
1284 extensibility request values to the
printer.
Table 1-14. Connector pin assignment and signals (continued)
Pin No. Signal name
31 -INIT 30 In Not used.
32
36 1284-Active 30 In 1284 active signal.
18 Logic-H - Out Pulled up to +5V via 3.9K ohm resistor.
35 +5V - Out Pulled up to +5V via 3.3K ohm resistor.
17 Chassis GND - - Chassis GND.
16,33,
19-30
15,34 NC - - Not connected.
NOTE:
-DataAvail /
DataBit-0,4
GND - - Signal GND.
In/Out refers to the direction of signal flow from the printer’s point of
view.
Extensibility Request:
The printer responds affirmatively when the extensibility request values are 00H
or 04H, that means,
00H : Request nibble mode reverse channel transfer.
04H : Request device ID;
Return data using nibble mode rev channel transfer.
Return
GND pin
29 Out
In/Out Functional description
Data available signal and reverse channel
transfer data bit 0 or 4.
10 PtrClk 28 Out Printer clock signal.
11
12
13
14 HostBusy 30 In Host busy signal.
PtrBusy /
DataBit-3,7
AckDataReq
/ DataBit-2,6
Xflag /
DataBit-1,5
29 Out
28 Out
28 Out
Printer busy signal and reverse channel
transfer data bit 3 or 7.
Acknowledge data request signal and
reverse channel transfer data bit 2 or 6.
X-flag sig nal and reverse channel
transfer data bit 1 or 5.
PRODUCT DESCRIPTION INTERFACE 20
EPSON Stylus PHOTO 810/820/830 Revision B
Stylus Photo 820/830
Device ID:
Stylus Photo 810/820
The printer sends the following device ID string when it is requested.
The printer sends the following device ID string when it is requested.
When IEEE1284.4 is enabled,
For EAI spec
[00H] [5AH]
MFG : EPSON;
CMD : ESCPL2, BDC, D4;
MDL : Stylus[SP]Photo[SP]820;
CLS : PRINTER;
DES : EPSON[SP]Stylu s[SP]Photo[SP]820;
For EURO/ASIA spec
[00H] [5AH]
MFG : EPSON;
CMD : ESCPL2, BDC, D4;
MDL : Stylus[SP]Photo[SP]810;
CLS : PRINTER;
DES : EPSON[SP]Stylu s[SP]Photo[SP]810;
When IEEE1284.4 is disabled,
For EAI spec
[00H] [57H]
MFG : EPSON;
CMD : ESCPL2, BDC;
MDL : Stylus[SP]Photo[SP]820;
CLS : PRINTER;
DES : EPSON[SP]Stylu s[SP]Photo[SP]820;
For EURO/ASIA spec
[00H] [57H]
MFG : EPSON;
CMD : ESCPL2, BDC;
MDL : Stylus[SP]Photo[SP]810;
CLS : PRINTER;
DES : EPSON[SP]Stylu s[SP]Photo[SP]810;
When IEEE1284.4 is enabled,
For EAI spec
[00H] [5AH]
MFG : EPSON;
CMD : ESCPL2, BDC, D4;
MDL : Stylus[SP]Photo[SP]820;
CLS : PRINTER;
DES : EPSON[SP]Stylus[SP]Photo[SP]820;
For EURO/ASIA spec
[00H] [5AH]
MFG : EPSON;
CMD : ESCPL2, BDC, D4;
MDL : Stylus[SP]Photo[SP]830;
CLS : PRINTER;
DES : EPSON[SP]Stylus[SP]Photo[SP]830;
When IEEE1284.4 is disabled,
For EAI spec
[00H] [57H]
MFG : EPSON;
CMD : ESCPL2, BDC;
MDL : Stylus[SP]Photo[SP]820;
CLS : PRINTER;
DES : EPSON[SP]Stylus[SP]Photo[SP]820;
For EURO/ASIA spec
[00H] [57H]
MFG : EPSON;
CMD : ESCPL2, BDC;
MDL : Stylus[SP]Photo[SP]830;
CLS : PRINTER;
DES : EPSON[SP]Stylus[SP]Photo[SP]830;
Note 1: [00H] denotes a hexadecimal value of zero.
Note 1: [00H] denotes a hexadecimal value of zero.
Note2: MDL value depends on the EEPROM setting.
Note3: CMD value depends on the IEEE1284.4 setting.
Note3: CMD value depends on the IEEE1284.4 setting.
Note2: MDL value depends on the EEPROM setting.
PRODUCT DESCRIPTION INTERFACE 21
EPSON Stylus PHOTO 810/820/830 Revision B
1.3.3 USB Interface
Standard : Based on
“Universal Serial Bus Specifications Rev. 1.1”
“Universal Serial Bus Device Class Definition
for Printing Devices Version 1.1”
Bit Rate : 12Mbps (Full Speed Device)
Data Encoding : NRZI
Adaptable Connector : USB Series B
Recommended Cable Length : 2 meters
Table 1-15. Connector pin assignment and signals
Pin No. Signal name I/O Function description
1 VCC - Cable powe r. Ma x. powe r cons um ption is 2mA.
2 -Data Bi-D Data
3 +Data Bi-D Data, pull up to +3.3V via 1.5K ohm resistor.
4 Ground - Cable ground
Pin #2
Pin #1
1.3.4 Prevention Hosts of Data Transfer Time-out
Generally, hosts abandon data transfer to peripherals when a peripheral is in the busy
state for dozens of seconds continuously. To prevent hosts of time-out, the printer
receives data very slowly, several bytes per minute, even if the printer is in busy state.
This slowdown is starte d when the remaining input buffer beco mes several h undreds of
bytes, and the printer is finally in the busy state continuously when the input buffer is
full.
USB and IEEE1284.4 on the parallel interface do not require this function.
1.3.5 Interface Selection
The printer has two built-in interfaces : the USB and parallel interface.
These interfaces are selected automatically.
Automatic Selection
In this automatic interface selection mode, the printer is initialized to the idle state
scanning which interface receives data when it is powered on. Then the interface
which receives data first is selected. When the host stops data transfer and the
printer is in the stand-by state for seconds, the printer is returned to the idle state.
As long as the host sends data or the printer interface is in busy state, the selected
interface is let as it is.
Interface State and Interface Selection
When the parallel interface is not selected, the interface gets into the busy state.
When the printer is initialized or returned to the idle state, the parallel interface
gets into the ready state. Caution that the interrupt signal such as the -INIT signal
on the parallel interface is not effective while that interface is not selected.
1.3.6 IEEE1284.4 Protocol
The packet protocol described by IEEE1284.4 standard allows a device to carry on
multiple exchanges or conversations which contain data and/or control information
Pin #3
Pin #4
Figure 1-9. USB pin Assignment
PRODUCT DESCRIPTION INTERFACE 22
with another device at th e same ti me acros s a si ngle point-t o-point l ink. T he prot ocol i s
not, however, a device control language. It provides basic transport-level flow control
and multiplexing services. The multiplexed logical channels are independent of each
other and blocking of one has no effect on the others. The protocol operates over
IEEE1284.
Automatic Selection
An initial state is compatible interface and starts IEEE1284.4 communication
when magic strings (1284.4 synchronous commands) are received.
EPSON Stylus PHOTO 810/820/830 Revision B
On
An initial state is IEEE1284.4 communication and data that received it by the time
it is able to take s ynchron izatio n by mag ic string (1284 .4 syn chronou s commands)
is discarded.
Off
An initial state is compatible interface and never starts IEEE1284.4
communication even if magic strings (1284.4 synchronous commands) are
received.
PRODUCT DESCRIPTION INTERFACE 23
EPSON Stylus PHOTO 810/820/830 Revision B
1.4 PANEL CONTROL
The control panel of the EPSON Stylus Photo 81/820 is composed of the 2 non-lock
type push-buttons (Error reset/Ink cartridge exchange), 1 lock-type push-button
(Power), and 2 LEDs. Different from Stylus Photo 810/820, the Stylus Photo 820/830
is compsed of the 3 non-lock type push -button. ( 2 LEDs is the same as the Stylus Photo
810/820.)
Power
(1)
Error reset
(2)
1.4.2 Panel Functions
Table 1-16. Panel functions
Switch Function
• Loads or Ejects the Paper (Pushing within 3seconds).
Error reset SW
Ink cartridge
exchange SW
* This function is not available in printing status.
Switch Function
Error reset SW
Ink cartridge
exchange SW
• Starts the Cleaning of head (Pushing for 3seconds).
• When carriage is on the Ink Cartridge change position, return
carriage from Ink cartridge change position.
• Starts the Ink Cartridge change sequence . *
Table 1-17. Panel functions with power on
• Start status printings.
• Selects IEEE 1284.4 mode for parallel I/F. *1
Ink cartridge exchange
*1 Not described in the user's manual.
Figure 1-10. Control panel
1.4.1 Indicators (LEDs)
(1) Power (Green)
Lights when the operating switch is “ON” and AC power is supplied.
(2) Error (Red)
Lights or blinks when some error has occurred on the printer.
PRODUCT DESCRIPTION PANEL CONTROL 24
EPSON Stylus PHOTO 810/820/830 Revision B
1.4.3 Printer Condition and Panel Status
Table 1-18. Printer condition and LED status
Printer status
Power ON condition On - 10
Ink sequence Blink - 6
Ink cartridge change mode Blink - 5
Data processing Blink - 9
Paper out *1 - On 4
Paper jam condition *1 - On 3
Ink end (Black) *1 - On -> Blink 8
Ink level low (Black) - Blink-> Blink 8
Ink end (Color) *1 - On -> Blink2 8
Ink level low (Color) - Blink-> Blink2 8
Ink end (Black and Color) - On -> On 8
No ink cartridge
(Black and Color) *1
Power Error
- On 7
Indicators
Priority
1.4.4 Error Status
Ink end error
When the printer runs out the most amount o f the in k o f any on e color , it indicates
ink low and keeps printing. When the printer runs out the whole ink of any color, it
stops printing and indicates ink end error. User is then requested to install a new
ink cartridge in this state.
Paper out error
When the printer fails to load a sheet, it goes into a paper out error.
Paper jam error
When the printer fails to eject a sheet, it goes into a paper jam error.
No ink cartridge
When the printer detects that ink cartridge comes off, or failed to read or write
CSIC data, it goes into this error mode.
Maintenance request
When the total amount of ink wasted through cleanings and flushing reaches to the
limit, printer indicates this error and stops. In such a case, the absorber in the
printer enclosure needs to be replaced with new one by a service person.
Fatal error
Carriage control error.
Maintenance request
(Ink overflow counter
error) *1
Fatal error *1 Off On 1
Special setting Blink2 Blink2 -
Alt Blink Alt Blink 2
" - " : Indicator status don't change.
" A -> B " :A is a indicator condition when carriage is in Home Position.
B is a indicator condition in Ink exchange sequence.
*1: refer to 1.4.4 "Error Status"or detailed information.
Blink : On 0.5sec + Off 0.5sec
Blink2 : On 0.2sec + Off 0.2sec + On 0.2sec + Off 0.4sec
PRODUCT DESCRIPTION PANEL CONTROL 25
EPSON Stylus PHOTO 810/820/830 Revision B
1.4.5 Printer Initialization
There are four kinds of initialization method, and the following explains each
initialization.
1. Power-on initialization
This printer is initialized when turning the printer power on, or printer recognized
the cold-reset command (remote RS command).
When printer is initialized, the following actions are performed.
(a) Initializes printer mechanism
(b) Clears input data buffer
(c) Clears print buffer
(d) Sets default values
2. Operator initializatio n
This printer is initialized when turning the printer power on again within 10
seconds from last power off, or printer recognized the -INIT signal (negative
pulse) of parallel interface.
When printer is initialized, the following actions are performed.
(a) Cap the printer head
(b) Eject a paper
(c) Clears input data buffer
(d) Clears print buffer
(e) Sets default values
3. Software initialization
The ESC@ command also initialize the printer.
When printer is initialized, the following actions are performed.
(a) Clears print buffer
(b) Sets default values
4. Power-on initi alization except I/F
The printer recognized the IEEE 1284.4 “rs” command.
When printer is initialized, the following action is performed.
(a) Initializes printer mechanism
(b) Clears input data buffer
(c) Clears print buffer
(d) Sets default values except I/F
PRODUCT DESCRIPTION PANEL CONTROL 26
OPERATING PRINCIPLES
CHAPTER
2
EPSON Stylus PHOTO 810/820/830 Revision B
2.1 Overview
This section describes the operating principles of the Printer mechanism and electrical
circuit boards. Like the previous printers (Stylus COLOR 480/580), the Stylus PHOTO
810/820 has only the following two circuit boards and does not have the control panel
*1
board.
Main board
Main board
Power supply board
Power supply board
*1
: Due to this, the Stylus COLOR 480/580 does no t have sw itches ( Power, Err or reset,
(Stylus Photo 810/820)
(Stylus Photo 820/830)
(Stylus Photo 810/820)
(Stylus Photo 820/830)
: C417/C418 Main/Main-B board
: C483/484 Main-B board
: C417 PSB/PSE board
: C482 PSH (For 42V)
Ink cartridge replacement) and LEDs. However, the Stylus PHOTO 810/820 has
them on the C418 Main board instead of the control panel board.
*2
: C418 Main/Main-B board is used for the Stylus C60 and Stylus Photo 810/820.
However, there is difference of ASIC & PROM mounted on the C418 Main/
Main-B board between the Stylus C60 and the Stylus Photo 810/820.
*2
No porous pad in cap
Cap unit with wiper
Star wheel roller
CR unit
Paper eject roller
PF motor
r
PF rolle
CR timing belt
HP/PE Senso r
LD Roller
Pad holder
(Paper return plate)
2.1.1 Printer Mechanism
The Printer mechanism for the Stylus PHOTO 810/820 is newly designed. But, the
LD pad
Compression spring
basic component of the Printer mechanism is almost the same as the previous printer
(Stylus COLOR 480/580). And als o, Stylus Pho to 820/830 is successor to Stylus Photo
810/820 and is the same as its printer mechanism.
This printer consists of Printhead, Carriage mechanism, Paper loading mechanism,
Paper feeding mechanism, Ink system (Pump mechanism including newly designed
Carriage lock mechanism, Capping mechanism including newly designed Wiper
mechanism).
Clutch mechanism
Like the previous printers (Stylus COLOR 480/580), the Stylus PHOTO 810/820 is
equipped with two stepping motors; one for the Paper loading/feeding mechanism and
the Pump mechanism with the CR lock mechanism, and one for the CR mechanism.
Change lever
Pump unit
The ASF unit for the Paper loading mechanism uses rear entry fro nt eject system. And,
single LD roller in Holder shaft unit loads a paper to the Printer mechanism.
Cap unit
CR motor
The Cap unit which adopts the valveless mechanism is newly designed on this printer
as follows.
Figure 2-1. Printer mechanism block diagram
Operating Principles Overview 28
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