All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means,
electronic, 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 efforts have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON
would greatly appreciate being informed of them.
The above 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.
Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment.
DANGER
WARNING
The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.
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.
Signals a precaution which, if ignored, could result in damage to equipment.
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.
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 ANTISTATIC 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
This manual describes basic functions, theory of electrical and
mechanical operations, maintenance and repair procedures of
EPSON EPSON Stylus PRO 7000. 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.
Contents
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
Provides the step-by-step procedures for the troubleshooting.
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
Parts list
Electric circuit boards components layout
Exploded diagram
Electrical circuit boards schematics
CHAPTER 4. DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for disassembling and
assembling the product.
CHAPTER 5. ADJUSTMENTS
Provides Epson-approved methods for adjustment.
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 WARNING,
CAUTION or NOTE messages.
Indicates a reassembly procedure, practice, or
condition that, if not strictly adhered to, could result
in damage to, or nonoperability of, the equipment.
W ARNING
CAUTION
CHECK
PO IN T
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 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.
Fixed illustrations on pages 60, 61, 63, 71
Fixed paper sensor volume adjustment
Added parts list and lubrication points
Added troubleshooting information regarding proper gap between cap and printhead
Added troubleshooting information regarding the cutter housing and encoder sensor
Paper Save feature searches for the front edge of the roll paper before
printing to make sure no paper at the leading edge is wasted
The EPSON Stylus Pro 7000 is an 24-inch wide, 6-color ink jet printer with
professional color output. It has the same printheads as the EPSON Stylus Pro
9000. The EPSON Stylus Pro 7000 provides the following major features and
more.
Large Format
A1, full size
24 inch-full size printing (A1+size supported)
Excellent Photo-quality printing
1440 (H) x 720 (V) dpi combined with EPSON’s Microdot printing
Same quality as the EPSON Stylus Pro 9000.
High-speed throughput
Table 1-1. Throughput Speed
EPSON mediaSlide BarResolutionDotModeSpeed
Plain Paper
Presentation
Matte Paper
Glossy Photo
Semigloss
Photo
Photo Quality
Glossy Film
Photo Quality
Ink Jet
Speed360x360dpiNormal 2 Dot Bi-D 200cps6 min.
Quality360x360dpiNormal Dot x 2 Bi-D FOL 300cps 8 min.
Speed720x360dpiNormal DotBi-D FOL 300cps 8 min.
Quality720x360dpiNormal DotUni-D FOL 300cps 14 min.
Speed720x360dpiNormal DotBi-D FOL 300cps 8 min.
Quality720x720dpiNormal DotBi-D FOL 300cps15 min.
Adv. Photo1440x720dpiMicro DotBi-D 4P 300cps30 min.
Quality720x720dpiMicro DotBi-D FOL 300cps
Adv. Photo1440x720dpiMicro DotBi-D 4P 300cps
Quality720x720dpiNormal DotUni-D FOL 300cps
Adv. Photo1440x720dpiMicro DotUni-D 4P 300cps
(Max.
A3+)
(Max.
A2)
Complete Software Compatibility With EPSON Stylus Pro 9000
Latest RIP Technology
CPSI Pro (software)
PS Server
Large format, yet provided as a desktop printer (optional stand
available)
Paper Handling:
Standard roll paper feeder
Straight paper path
Automatic paper cutter
Low running cost
Six separate ink cartridges so you only have to replace the empty ink
cartridge (each cartridge holds 110ml of ink)
Auto Rotate feature saves paper by automatically rotating an image if
the width is shorter than the height
Paper must have no wrinkles, tears, or folds plus the surface
should be smooth.
(8.4~24.0”)
Length279mm~90m (within roll size)
(11.1”~298.8’)
(8.4~24.0”)
Length279mm~90m (within roll size)
(11.1”~30’)
paper from the core
*3: At the point where the rear edge comes free from the core (approx.
last 30 cm.), print quality is no longer guaranteed.
*4: If a 3” core is used, the EPSON-exclusive optional 3” roll paper spindle
is required
EPSON Special Roll Paper
The following special papers meet or exceed EPSON requirements, and
paper feeding plus printout quality are assured.
Table 1-4. EPSON Special Paper
Type (US)Type (outside US)
Presentation Matte
Paper
Glossy Paper-Heavy
Weight
Semi Glossy Paper-
Heavy Weight
Photo quality glossy
Film (TBD)
Presentation Matte
Paper
Glossy Photo Paper
Semigloss Photo
Paper
Photo quality
glossy Film (TBD)
*1: Use at normal room temperature (15~25°C (59~77°F) 40~60%
humidity)
*2: At the point where the rear edge comes free from the core (approx.
last 30 cm.), print quality is no longer guaranteed.
Paper Size
(W x H)
610mm x 25m
(24” x 83’)
610mm x 20.7m
(24” x 68.7’)
210mm (same as A4)
x 10m
(8.4” x 33.2’)
329mm (same as
A3+) x 10m
(13.1” x 33.2’)
610mm x 25m
(24” x 83’)
610mm x TBD
(24” x TBD)
Roll Size
2” core,
maximum103mm
external diameter
•Thickness = 0.08~0.11mm (0.003~0.0043”)
•Weight = 64~90gf/m
2
(17~24 lb.s)
•Quality = Normal paper, recycled paper
*1: Use at normal room temperature (15~25°C (59~77°F) 40~60%
humidity)
*2: The printer exerts between 300~500gf to peel off the rear edge of roll
Product DescriptionFeatures15
EPSON Stylus Pro 7000Revision B
CUT SHEET SPECIFICATIONS
CAUTION
Minimum-quality paper
Paper meeting the requirements described below can be used with this
printer, but neither the feeding nor printout quality is guaranteed.
Size = see the following table
Paper must have no wrinkles, tears, or folds plus the surface
should be smooth
Paper must be fed short-edge first (portrait)
Use at normal room temperature (15~25°C (59~77°F)
40~60% humidity)
Plain paper
For paper meeting the following requirements, only the feeding operation
is guaranteed.
•Size = see Table 1-5 above (plus the following requirements)
•Thickness = 0.08~0.11mm (0.003~0.0044”)
•Weight = 64~90gf/m
2
(17~24 lb.s)
•Quality:Normal, recycled paper
*1: Load short edge first (portrait)
*2: Use at normal room temperature (15~25°C (59~77°F) 40~60%
humidity)
EPSON Special Paper
The following special papers meet or exceed EPSON requirements, and
paper feeding plus printout quality are assured.
•Size = see the following table
Table 1-5. Supported Cut-Sheet Paper
SizeDimensions (W x H)
B2515 x 728mm
A1+24 x 36”
A1594 x 841mm
A2420 x 594mm
A3+329 x 483mm
A3297 x 420mm
A4210 x 297mm
ANSI D22 x 34”
ANSI C17 x 22”
ANSI B11 x 17”
Letter8.5 x 11”
Size
A4210 x 297mmYesYesYes-
A3297 x 420mmYesYesYes-
A3+329 x 483mmYesYesYes-
A2420 x 594mmYes---
Letter216 x 279mmYesYesYes-
B279 x 432mmYesYesYes-
C431 x 558mmYes---
B2515 x 728mm---Yes
Table note:
*1: Print quality optimized with uni-direction printing
Table 1-6. Cut-Sheet Availability
Dimensions
(W x H)
SuperFine
*1
PhotoPrint
Photo Quality
Glossy Film
Art
Board
Thickness =0.08~1.5mm (for 297~728mm/ 11.8~29.0” length paper
Note: *The size of the margin is determined by the control panel setting.
210 ~ 610mm
(8.27 ~ 24”)
Max. 90m
(298.8’)
3mm/15mm*
(0.12~0.59”)
210 ~ 610mm
(8.27 ~ 24”)
297~915mm
(11.8~36.4”)
3mm
There are three margin settings via the control panel;
3mm = All margins are set to 3mm
15mm = All margins are set to 15mm
T/B 15mm TM and BM are 15mm, while LM and RM are
3mm
Table 1-8. Optimal Margin Settings
To optimize forSelect this setting
largest printable area and decrease chance of paper
rubbing printheads
exact paper size and decrease chance of paper rubbing
printheads
largest printable area and exact paper size3mm
Top/Bottom 15mm
15mm
When the Paper Set Lever is:
Figure 1-1. Printable Area
Back
The feed path is open and you can load, remove or change the
position of paper in the feed path.
Forward
The feed path is closed and loaded paper is locked in place. You can
print on the loaded paper.
(It is not possible to change the lever position during printing.)
Product DescriptionFeatures17
EPSON Stylus Pro 7000Revision B
1.1.5 Ink Cartridges
Shape:Each ink cartridge is uniquely shaped so the
Print capacity:A1 = approx. 28 pages at 720dpi and 40% coverage
A1 = approx. 11 pages at 720dpi and 100% coverage
D = approx. 26 pages at 720dpi and 40% coverage
A4 = approx. 3,800 pages at 360dpi and 5%
coverage
Dimensions:25.1 x 141.1 x 105.3mm (WxDxH)
Weight:Approx. 200g
Storage temperature:See the table below
.
Table 1-9. Ink Cartridge Specifications
SituationTemperatureNotes
Transporting
Storage
Installed
-30~50°C
(-22~122°F)
-20~40°C
(-7.6~104°F)
-30~40°C
(-22~104°F)
• Less than a month at 40°C (104°F)
• Less than 120 hours at 50°C (122°F)
Less than a month at 40°C (104°F)
Less than a month at 40°C (104°F)
1.1.6 Electrical Specifications
Table 1-10. Electrical Specifications
120V Model220-240V Model
Rated voltage range
Input voltage range
Rated frequency range
Input frequency range
Rated current
Power consumption
Insulation resistance
Dielectric strength
10MΩ minimum (between AC line and chassis, DC 500 V)
AC 1,000V rms per minute
second (between AC line
AC120VAC220~240V
AC90~132VAC198~264V
1.0A (Max. 1.6A)0.5A (Max.0.8A)
standby mode = 15W or less
Energy Star Compliant
or AC 1,200V rms per
and chassis)
50~60Hz
49.5~60.5Hz
AC 1,500V rms per minute
(between AC line and
chassis)
Do not refill or reuse cartridges; they are consumable items.
Do not use ink that beyond its expiration date. See above.
To use ink that has been frozen below -15 °C (5 °F), let it
thaw at least 3 hours at room temperature.
Product DescriptionFeatures18
EPSON Stylus Pro 7000Revision B
1.1.7 Reliability
Total print volume:20,000 pages at A1 size
Printheads:2,000,000,000 dots/nozzle
Cutter:Approximately 2,000 sheets (A1)
Maintenance parts:Approximately 12,000 sheets
Ink pad, Pump unit, Flushing box, Cap assembly,
and Head Cleaner are all included in the SP-7000
Maintenance Kit (P/N 1054038)
1.1.8 Environmental Conditions
TEMPERATURE/HUMIDITY
See the following table.
Table 1-11. Environmental Conditions
ConditionTemperatureHumidityNotes
Operating
Storage
Transportation
Notes:
1) When storing the printer, make sure the printheads are in the home (capped)
position. If necessary switch power on, wait for the printheads to move to the
home position, and then switch power off.
2) Before transporting the printer, remove the ink cartridges and turn the ink
valves screws to the closed position. Also make sure the printheads are in the
home, capped, position. After transporting the printer, install new ink
cartridges.
3) If the temperature drops below -15°C (5°F), the ink in the cartridges and
printheads freezes. The ink thaws completely after three hours at 25°C (77°F).
10~35°C
(50~95°F)
-20~40°C
(-4~104°F)
-20~60°C
(-4~140°F)
20~80%
20~85%
5-85%
• Less than a month at
40°C (104°F)
• Less than 120 hours at
60°C (140°F)
• With no freezing
90
80
70
60
Humidity (%)
50
40
30
20
10
10
15
20
27 3035 40
Temperature (°C)
Figure 1-2. Print Temperature and Humidity
Product DescriptionFeatures19
EPSON Stylus Pro 7000Revision B
VIBRATION & SHOCK
See the following table.
Table 1-12. Vibration and Shock
Condition
Operating
Storage
Notes:
* Make sure the printhead is capped during transportation and storage. To cap
the printhead, turn the power on (with ink cartridges installed) and turn the
power off when the printheads are capped.
* To thaw frozen ink in the printer or cartridge, leave the printer out at a
temperature of 25°C (77°F) for approximately three hours.
Vibration
Resistance
0.15G
10~55Hz
0.5G
10~55Hz
Shock
Resistance
1G
maximum 1ms
2G
maximum 2ms
Notes
X/Y/Z directions
1.1.9 Controller
CPU:Hitachi SH7043, 33Mhz
RAM:8MB + 2MB (fixed)
Interfaces:IEEE1284
USB
Type B (one expansion port)
Product DescriptionFeatures20
EPSON Stylus Pro 7000Revision B
1.1.10 Conformity/Safety Approvals
120V Model
Safety Standards:
UL1950
CSA 22.2 No. 950
EMI:
FCC part 15 subpart B class B
CSA C108.8 class B
220~240V Model
Safety Standards:
EN 60950
EMI:
EN55022 (CISPR Pub. 22) class B
AS/NZS 3548 class B
1.1.11 Acoustic Noise
Approx. 50dB(A) (According to ISO 7779)
Product DescriptionFeatures21
EPSON Stylus Pro 7000Revision B
1.1.12 CE Marking
220~240V Model
Low Voltage Directive 73/23/EEC: EN60950
EMC Directive 89/336/EECEN55022 Class B
EN61000-3-2
EN61000-3-3
EN50082-1
IEC801-2
IEC801-3
IEC801-4
1.2 Interfaces
The EPSON Stylus Pro 7000 is equipped with parallel and USB interfaces as
well as an expansion slot for an optional Type-B interface. This section
provides information on each of these interfaces.
Use a twisted-pair cable that is as short as possible.
The BUSY signal is set high before setting the -ERROR signal low or the PE
signal high. The BUSY signal remains high until all these signals return to
their normal, inactive state.
The BUSY signal is high:
When receiving data
When the input data buffer is full
When the -INIT signal is low, or during hardware initialization
During a printer error
When the parallel interface is not selected
TTL compatible level (IEEE-1284 Level 1 device)
57-30360 (Amphenol) or equivalent
The ERROR signal is low when there is a:
Printer hardware error (fatal error)
Paper-out error
Paper-jam error
Ink-out error
NOTE: The PE signal is high during paper-out errors.
DATA TRANSMISSION TIMING
DATA
-STROBE
BUSY
-ACKNLG
ready
t
setup
t
data byte n
hold
t
t
busy
t
stb
t
reply
ack
t
nbusy
t
Figure 1-3. Data Transmission Timing
data byte n + 1
next
t
Product DescriptionInterfaces23
EPSON Stylus Pro 7000Revision B
Table 1-14. Data transmission times
ParameterMinimumMaximum
tsetup500 ns-
thold500 ns-
tstb500 ns-
tready0-
tbusy-500 ns
tt-out*-120 ns
tt-in**-200 ns
treply0-
tackTypical 2 us
tnbusy0-
tnext0-
* Rise and fall time of every output signal
** Rise and fall time of every input signal
Table 1-15. Typical tack time
Parallel I/F modeTime required
High speed (default)0.5us
Normal speed2us
Product DescriptionInterfaces24
EPSON Stylus Pro 7000Revision B
Table 1-16. Connector Pin Assignments and signals - Forward
Channel
Pin
No.
2-9
10
11
12
13
14
15
16
17
18
19-30
31
Signal
Name
-STROBE
1
DATA0~7
-ACKNLG
BUSY
PE
SLCT
-AFXT
NC
GNDGround for twisted pair return
Chassis
GND
Logic HPulled up to +5V via 3.9Kohm
GNDGround for twisted pair return
-INIT
Return
Pin
19I
20-27I
28O
29O
28O
28O
30I
--
30I
In/
Out
Data reception pulse. Data is read at the falling
edge of this pules.
The DATA0 through DATA7 signals represent
data bits 0 to7, respectively. Each signal is at
high level when data is logical 1 and low level
when data is logical 0.
This signal is a negative pulse indicating that
the printer can again accept data.
HIGH means the printer cannot receive data.
This occurs when the printer is receiving data
or when the printer is in an error state.
HIGH means no paper is loaded.
Always HIGH when the printer is on.
Not used
Not connected
Ground for frame/body
Pulse width of 50uS or more means LOW
pulse, and the falling edge of LOW signal
causes the printer to initialize.
Functional Description
Table 1-16. Connector Pin Assignments and signals - Forward
Channel (continued)
Pin
No.
34
35
36
Note: In (I) and Out (O) refer to the direction of signal flow from the printer’s point
NC
+5V
-SLIN
of view.
Signal
Name
Return
Pin
--------
----O
30I
In/
Out
Not connected
HIGH during normal operation. Pulled up to
+5V via 1.0Kohm
Not used
Functional Description
32
33
-ERROR
GND
29O
--------
LOW means printer error
Ground for twisted pair return
Product DescriptionInterfaces25
EPSON Stylus Pro 7000Revision B
1.2.2 Parallel Interface - Nibble Mode
Table 1-17. Transmission Specifications
Description
Transmission mode IEEE-1284 nibble mode
SynchronizationRefer to IEEE-1284 specification
HandshakingRefer to IEEE-1284 specification
Signal levelTTL compatible (IEEE-1284 level 1 device)
Adaptable
connector
Data trans. timingRefer to IEEE-1284 specification
Extensibility request
Device ID
57-30360 (Amphenol) or equivalent
The printer responds affirmatively when the extensibility
request values are 00H or 04H:
00H: Request Nibble Mode Reverse Channel Transfer
04H: Request Device ID;
Return Data Using Nibble Mode Reverse Channel
Transfer
The printer returns the following strings when the device ID
is requested:
Note: In (I) and Out (O) refer to the direction of signal flow from the printer’s point
GNDGround for twisted pair return
-INIT
31
-DataAvail/
32
DataBit-0,4
GNDSignal ground
33
NCNot connected
34
+5V
35
1284-Active
36
of view.
Return
Pin
19I
20-27I
28O
29O
28O
28O
30I
30I
29O
----O
30I
In/
Out
Host clock signal.
The DATA0 through DATA7 signals
represent data bits 0 to7, respectively.
Each signal is at high level when data is
logical 1 and low level when data is logical
0.
Printer clock signal
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 signal and reverse channel transfer
data bit 1 or 5.
Host busy signal.
Pulled up to +5V via 3.9K ohm resister.
O
Not used.
Data available signal and reverse channel
transfer data bit 0 or 4.
Pulled up to +5V via 1.0K ohm resister.
1284 Active Signal
Functional Description
Product DescriptionInterfaces26
EPSON Stylus Pro 7000Revision B
1.2.3 Parallel interface - ECP mode
Table 1-19. Transmission Specifications
Description
Transmission mode IEEE-1284 ECP mode
SynchronizationRefer to IEEE-1284 specification
HandshakingRefer to IEEE-1284 specification
Signal levelIEEE-1284 level 1 device
Adaptable
connector
Data trans. timingRefer to IEEE-1284 specification
Extensibility request
Device ID
See forward channel
The printer responds affirmatively when the extensibility
request values are 10H or 14H:
10H: Request ECP Mode Reverse Channel Transfer
14H: Request Device ID;
Return Data Using ECP Mode Reverse Channel
Transfer
The printer returns the following strings when the device ID
is requested:
Data or address information is transferred
from the host to the printer.
The DATA0 through DATA7 signals
represent data bits 0 to7, respectively.
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.
Data is transferred from the printer to the
host.
The printer uses this signal for flow
control in the forward direction. Also used
for data bit 9 which indicates command
information and data to be output on the
data signal in the forward direction.
The printer goes to Low and approves the
nReverseRequest.Acknowledge data
request signal and reverse channel
transfer data bit 2 or 6.
Functional Description
Table 1-20. Connector Pin Assignments - ECP Mode
Pin
Signal Name
No.
nReverseReq
31
uest
nPeriphRequ
32
est
GNDGround for twisted pair return
33
NCNot connected
34
+5V
35
1284-Active
36
Note: In (I) and Out (O) refer to the direction of signal flow from the printer’s point
of view.
Return
Pin
30I
29O
----O
30I
In/
Out
This signal goes low to change to the
reverse channel.
This signal produces a host interrupt.
Always HIGH. Pulled up to +5V via 1.0K
ohm resister.
1284 Active Signal. HIGH in ECP mode
Functional Description
13
14
15
16
17
18
19-30
Xflag
HostAck
NCNot connected
GNDSignal ground
Chassis GNDChassis ground
PeriphLogicH
GNDGround for twisted pair return
28O
30I
X-flag signal and reverse channel transfer
data bit 1 or 5.
The host uses this signal for flow control
in the reverse direction. Also used for data
bit 9 which indicates command
information and data to be output on the
data signal in the forward directions.
Always HIGH. Pulled up to +5V via 3.9K
O
ohm resister.
Product DescriptionInterfaces28
EPSON Stylus Pro 7000Revision B
1.2.4 USB
Standard:“Universal Serial Bus Specifications Revision 1.0”
“Universal Serial Bus Device Class Definition for
Printing Devices Version 1.0”
Bit rate:12Mbps (Full speed device)
Data encoding:NRZI
Adaptable connector:USB series B
Suggested cable length :2 meters
Table 1-21. USB connector pin assignments and signals
Generally, hosts abandon data transfer to peripherals when a peripheral is in
the busy state for dozens of seconds continuously. To prevent hosts from
entering this kind of time-out period, the printer slows down the data
reception rate to about one byte per second when there is less than 4kb of
free space in the printer buffer. Data reception comes to a complete stop if the
free space is less than 32 bytes, but returns to one byte per second when free
space reaches 1KB or more.
Product DescriptionInterfaces30
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