hts reserved. No part of t his manual may be r eprod uced, st ored in a r etri eval sy ste m, or t ransmit ted in any for m or by an y means el ectroni c,
All ri
mechanical, photocopyin
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
reatly appreciate being informed of them.
The contents of this manual are subject to chan
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
reatly appreciate being informed of them.
The above not withstandin
thereof.
istered trademark of SEIKO EPSON CORPORATION.
respective owners. EPSON disclaims any and all rights in those marks.
, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
e without notice.
SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences
PRECAUTIONS
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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 performin
Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in
performin
Signals a precaution which, if ignored, could result in damage to equipment.
procedures preceded by DANGER Headings.
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.
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
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This manual describes basic functions, theory of electrical and mechanical operations, and repair procedures of EPL-N4000/N-400+ Optional
Finisher Stapler. The instruct ions and procedures included herein are intended for the experienced repair technicians, and attention should be
to the precautions on the precedin
page.
iven
Contents
This manual consists of three chapters and Appendix.
CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a
product.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of electrical and mechanical
operations of the product.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for
disassemblin
APPENDIX
Provides the followin
reference:
• Connector pin assi
• Electric circuit boards components layout
• Exploded dia
eneral overview and specifications of the
and assembling the product.
additional information for
nments
ram
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 dan
present durin
they are used, and always read WARNING, CAUTION or NOTE
messa
es.
a procedure or an action. Be aware of all symbols when
er
CAUTION
CHECK
POINT
Indicates an operatin
or condition that, if not strict ly obser ved, could r esult in injur y
or loss of life.
Indicates an operatin
or condition that, if not strictly observed, could result in
dama
May indicate an operatin
practice or condition that is necessary to accompli sh a task
efficiently. It may also provide additional information that is
related to a specific subject, or comment on the results
achieved throu
e to, or destruction of, equipment.
h a previous action.
or maintenance procedure, practice
or maintenance procedure, practice,
or maintenance procedure,
Revision Status
RevisionIssued DateDescription
Rev. ASeptember 16, 1999First Release
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
1.1 Outline
This chapter describes the specification of the Finisher Stapler.
1.1.1 General Specification (TBD)
STRUCTURE
Finisher Stapler is the option of the EPSON EPL-N4000/EPL-N4000+. It is
consists of hirizontal transport unit and stack tray unit. Hirizontal transport uit
is installed to the face down output tray of the printer, and stack tray is
installed to the right side of the printer.
NOTE: Finisher Stapler cannot be used with 10 pin multipin.
FUNCTION
Stapling at the specified position.
Three ejecting paper stack trays
PAPER
Refer to product specification for EPSON EPL-N4000/EPL-N4000+.
1.1.2 Stapler Specification (TBD)
STAPLE (TBD)
Maximum amount of paper:50 sheets (paper: Xerox DP 20lb)
Ejected paper is stacked on the Complier Tray, jogged by the tamper to the
front, and sent to the Stacker.
MAXIMUM SETTABLE AMOUNT OF PAPER
50 sheets
MINIMUM PAPER WIDTH
ELECTRIC POWER CONSUMPTION (TBD)
55W (110VAC)
210mm
1.1.4 Stacker Specification (TBD)
NOISE (TBD)
Continuous noise on the job: max. 72.8dB
SIZE AND WEIGHT
Dimensions:1,133 x 633 x 658 mm (HxWxD)
Weight:58kg
Product DescriptionOutline12
STACKER
Tray: 3
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
PAPAER CAPACITY
Without Staple:500 sheets/tray
With staple:Max. 30 sets or 600 sheets/tray
Real Staple Mode:15 sheets (B5 LEF, B5, B4 SEF)
Multiple Staple Mode:15 sheets (B5, SEF)
NOTE: LEF= Long Edge First, SEF= Short Edge First
1.1.5 Offset Specification (TBD)
OFFSET (TBD)
By shifting the ejecting roller, the Finisher Stapler can eject paper 15mm
offset.
Product DescriptionOutline13
OPERATING PRINCIPLES
CHAPTER
2
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.1 Power Supply
The Power Supply of the Finisher Stapler is supplied by the 100V AC via the
printer and generated by the LVP PWB in the Finisher Stapler.
2.1.1 Control over the Finisher Stapler
LVPS sends the sensor data in the Finisher Stapler to the MCU of the printer.
Commands from the MCU of the printer is transferred to the Finisher PWB
and controls over respective components of the Finisher Stapler.
Figure 2-1. Components
Operating PrinciplesPower Supply15
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.1.2 Control Main Parts of the Finisher Stapler
Finisher PWB
LVPS PWB sends sensor data in the Finisher Stapler to MCU of the
printer. Commands from the MCU of the base engine is transferred to
the Finisher PWB and controls over respective components of the
Finisher Stapler.
HCS Low Voltage Power Supply
Generates +5VDC and +24VDC from 100VAC.
Unload While Run Switch and LED
This switch is for user to interrupt Finisher Stapler when it is
proceeding its job.
LED flashes when interruption is made.
Finisher Interlock Sensor
Supervises that the door of the Finisher Stapler is not open.
Front Cover Interlock Switch
When Front Cover is open, shut off 24VDC.
Compiler Cover Safety Switch
When Compiler Cover is open, shut off 24VDC.
IOT Full Paper Sensor
Supervises the amount of paper on the eject tray of the printer.
Transport Exit Sensor
Supervises paper passing from Transport Assembly.
Transport Interlock Sensor
Supervises the condition of the Transport Cover.
Transport Motor
Drives Transport Rolls.
2.1.2.2 Compiler
Compiler arranges paper as set.
Tamper Motor
Drives Tamper which pushes paper to the end.
Tamper Home Sensor
Supervises the position of the Tamper.
Top Tray Safety Switch
Detects if there are any obstructions under the Top Tray and shut off
+24VDC and stop the Elevator Motor.
Middle Tray Safety Switch
Detects if there are any obstructions under the Middle Tray and shut
off +24VDC and stop the Elevator Motor. Top Tray Safety Switch and
Middle Tray Safety Switch are connected in series.
2.1.2.1 Transport
Shift paper from DDC to Compiler.
IN Gate Solenoid
Alternate the direction of IN Gate.
IN Gate Interlock Sensor
Supervises the position of IN Gate. (Up/Down)
Transport Entrance Sensor
Supervises paper passing to Transport Assembly.
Compiler Tray Up/Down Solenoid
Slant Compiler Tray when the amount of paper has reached twenty
five.
Figure 2-2. Tamper/Tamper Home Sensor
Operating PrinciplesPower Supply16
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
Stapler Front Straight Sensor
Commands the position of the Stapler Unit as the Move Motor can
drive Stapler until the Stapler Unit comes to the staple position at the
front and rear edge of paper.
Stapler Rear Straight Sensor
Commands the position of the Stapler Unit as the Move Motor can
drive Stapler until the Stapler Unit comes to the staple position at the
rear corner of paper.
Stapler Move Motor
Shift the Stapler Head to the Staple position.
Figure 2-3. Compiler Tray Up / Down Solenoid
End Wall Open/Close Motor
Controls opening and closing of the End Wall.
End Wall Open Sensor
Supervises the position of the End Wall.
Compiler Tray Exit Sensor
Supervises paper ejecting through the entrance of the Compiler. HCS
uses the signal from the sensor to determine start and stop of the
Transport Motor and Eject Motor.
Compiler Paper Sensor
Supervises paper on the Compiler Tray.
Compiler Cover Interlock Switch
Supervises the position of the Compiler Cover.
2.1.2.3 Stapler
Stapler bundles paper with staple.
Stapler Front Corner Sensor
Commands the position where Stapler Unit staples at the front corner
of paper.
Stapler Motor
Drives Stapler Head during stapler stapling paper.
Staple Ready Sensor
Supervises the existence of the staple in Staple Head.
Low Staple Sensor
Supervises the remaining of the staple in Stapler.
Stapler Head Home Sensor
Supervises if the Stapler Head is at the home position.
Set Clamp Home Sensor
Supervises if the Set Clamp is at the home position.
Figure 2-4. Stapler / Sensors
Operating PrinciplesPower Supply17
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
Set Clamp Motor
Drives Set Clamp paddle to clamp paper on the Compiler Tray before
stapling.
Figure 2-5. Stapler
Stacker Tray Elevator Motor
Revolves Stacker Drive shaft clockwise or counterclockwise and shifts
Stacker Tray up and down.
Stacker Tray ID Sensor
Supervises the right position of the Tray.
Stacker Upper Limit Switch
Detects the upper limit of the Stacker Tray. The switch shut off the DC
power supply to the Elevator Motor.
Stacker Lower Limit Switch
Detects the lower limit of the Stacker Tray. The switch shut off the DC
power supply to the Elevator Motor.
Stacker Lower Safety Switch
Supervises the obstruction under the Bottom Tray.
Stack Height Sensor
Supervises the Tray position.
2.1.2.4 Eject and Offset
Eject and Offset carries paper compiled on the Stacker Tray and ejects offset
paper.
Eject Clamp and Offset Motor
Drives Eject Chute and Pinch Roll by shifting Eject Chute and Pinch
Roll up and down.
Eject Clamp Sensor
Supervises if Eject Roll is at the upper position or at the lower
position.
Stacker Offset Home Sensor
Supervises if Eject Roll is at the home position.
Eject Motor
Drives Eject Shaft Assembly.
2.1.2.5 Stacker Unit
Provides function to shift three Stacker Tray up and down.
2.1.2.6 Stacker Top Tray
Provides function to shift Top Stacker Tray up and down.
Stacker Tray 1 Motor
Shifts Top Tray up and down.
Stacker Top Paper Sensor
Detects if there are paper on the Top Tray.
Stacker Top Full Sensor
Detects if paper on the Top Tray is full.
Stacker Top Half Sensor
Detects if paper on the Top Tray is 50% full.
Stacker Top Upper Limit Sensor
Detects the upper limit of the Top Tray. The sensor sends signal to
Finisher Stacker PWB to shut off the DC power supply to the Stacker
Tray 1 Motor.
Stacker Top Lower Limit Sensor
Detects the lower limit of the Top Tray. The sensor sends signal to
Finisher Stacker PWB to shut off the DC power supply to the Stacker
Tray 1 Motor.
Operating PrinciplesPower Supply18
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.1.2.7 Stacker Middle Tray
Provides function to shift Middle Stacker Tray up and down.
Stacker Middle Motor
Shifts Middle Tray up and down.
Stacker Middle Paper Sensor
Detects if there are paper on Middle Tray.
Stacker Middle Full Sensor
Detects if paper on Middle Tray is full.
Stacker Middle Half Sensor
Detects if paper on Middle Tray is 50% full.
Stacker Middle Upper Limit Sensor
Detects the upper limit of Middle Tray. The sensor sends signal to
Finisher PWB to shut off the DC power supply to the Stacker Middle
Motor.
Stacker Middle Lower Limit Sensor
Detects the lower limit of Middle Tray. The sensor sends signal to
Finisher PWB to shut off the DC power supply to the Stacker Middle
Motor.
Stacker Low Lower Limit Sensor
Detects the upper limit of Bottom Tray. The sensor sends signal to
Finisher PWB to shut off the DC power supply to the Stacker Bottom
Motor.
2.1.2.8 Stacker Bottom Tray
Provides function to shift Bottom Stacker Tray up and down.
Stacker Low Motor
Shifts the Bottom Tray up and down.
Stacker Low Paper Sensor
Detects if there are paper on the Bottom Tray.
Stacker Low Full Sensor
Detects if paper on the Bottom Tray is full.
Stacker Low Half Sensor
Detects if paper on the Bottom Tray is 50% full.
Stacker Low Upper Limit Sensor
Detects the upper limit of Bottom Tray. The sensor sends signal to
Finisher PWB to shut off the DC power supply to the Stacker Bottom
Motor.
Operating PrinciplesPower Supply19
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.2 Transmission of the Driving Force
2.2.1 Transport Motor
Transport Motor is in the Compiler of the Finisher Stapler.
Figure 2-6. Transport Driving Mechanism
2.2.2 Eject Motor
Finisher PWB revolves the Eject Motor clockwise to eject paper to the Stacker
Tray. Finisher PWB also revolves the Eject Motor counterclockwise to pull
paper back to the Compiler Tray.
Figure 2-8. Eject Motor
Figure 2-7. Driving Force Transmission Outline
Operating PrinciplesTransmission of the Driving Force20
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.2.3 End Wall Motor
End Wall Motor shifts the End Wall of the Compiler Tray. When paper is sent
to the Compiler Tray, End Wall Motor shifts up the End Wall. When paper is
stapled, End Wall Motor shifts down the End Wall.
Figure 2-9. End Wall Motor
2.2.4 Tamper Motor
Tamper Motor drives the Tamper.
Figure 2-10. Tamper Motor Working Part
Figure 2-11. Tamper Motor Operational Outline
Operating PrinciplesTransmission of the Driving Force21
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.2.5 Set Clamp Motor
Figure 2-12. Set Clamp Motor Working Part
2.2.6 Offset Motor
Eject Clamp Offset Motor drives Offset Cam and Eject Clamp Cam.
SR1532X
Figure 2-14. Offset Motor Working Part
Figure 2-13. Set Clamp Motor Operational Outline
SR1531X
Figure 2-15. Offset motor Operational Outline
Operating PrinciplesTransmission of the Driving Force22
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.2.7 Stacker Elevator Motor
SR1533X
Figure 2-17. Stacker Elevator Motor Operational Outline
SR1534X
Figure 2-16. Stacker Elevator Motor Working Part
Operating PrinciplesTransmission of the Driving Force23
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.2.8 Tray Motors
SR1536XA
Figure 2-18. Tray Motor Working Part
SR1535X
Figure 2-19. Tray Motor Operational Outline
Operating PrinciplesTransmission of the Driving Force24
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.3 Paper Path
Paper goes through four main components of DOC, Transport, Compiler, and
Stacker Tray.
2.3.1 Paper Path on the Unstaple Mode
2.3.1.1 DOC
DOC is at the exit of the Fuser of the printer. DOC includes IN Gate. When
Finisher Stapler is selected, the Finisher PWB drives the IN Gate Solenoid to
alternate the direction of the IN Gate and carries paper to the HCS Transport
Assembly.
SR1503X
Figure 2-21. DOC
DOC PAPER PATH MAIN COMPONENTS
IN Gate
On normal mode, IN Gate faces up. When selected to send paper to
Staple Stacker, IN Gate Solenoid commands IN Gate to face down.
Upper Chute
Carries paper to the Transport Rolls.
IN Gate Solenoid
Controlled by Finisher PWB.
SR1502X
Figure 2-20. Main Components
Operating PrinciplesPaper Path25
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.3.1.2 Transport
Three sets of Transport Rolls send paper through Transport Assembly to
Compiler. Transport Entrance Sensor and Transport Exit Sensor supervises
paper passing.
SR1515X
Figure 2-22. Transport
TRANSPORT PAPER PATH MAIN COMPONENTS
Transport Rolls and Pinch Rolls (3 sets)
Carries paper to the Compiler.
Transport Entrance Sensor
Supervises paper entering to the Transport.
Transport Exit Sensor
Supervises paper exiting from the Transport.
IOT Full Paper Sensor
Supervises the amount of paper on the Face Down Output Tray of the
printer. When the Finisher Stapler is installed, IOT Full Paper Sensor
supervises on behalf of the printer Full Stack Sensor.
2.3.1.3 Exit/Eject
SR1518X
Figure 2-23. Exit / Eject
EXIT/EJECT PAPER PATH MAIN COMPONENTS
Transport Rolls and Pinch Rolls
Carries paper to the Compiler.
Complier Tray Exit Sensor
Supervises paper passing to the entrance of the Compiler.
Exit Roll / Paddle Assembly
Carries paper to the Offset/Eject Rolls.
Eject Roll / Paddle Assembly
Ejects paper to the Stacker Tray.
Offset Pinch Roll
Offsets and ejects paper to the Stacker Tray.
Operating PrinciplesPaper Path26
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.3.1.4 Stacker Trays
Eject Toll and Paddle Assembly ejects paper to the Stacker Tray. Stacker
Elevator shifts three Trays up and down as one of the Trays faces Eject Rolls.
ID Sensor informs the Finisher PWB that the selected Tray is at the right
position. Respective sensors supervise the amount of paper on each Tray.
SR1512X
Figure 2-24. Stacker Tray
2.3.2 Paper Path on the Staple Mode
SR1501X
Figure 2-25. Paper Path Outline
2.3.2.1 DOC
Operating principle of DOC on the staple mode is the same as on the unstaple
mode. (“DOC” on page 25)
2.3.2.2 Transport
Operating principle of Transport on the staple mode is the same as on the
unstaple mode. (“Transport” on page 26)
OFFSET PAPER PATH MAIN COMPONENTS
Top, Middle, Bottom Tray
Shifted up and down as one unit. Selected Tray stops in front of the
Eject Rolls.
Stacker Motor (Top, Middle, Bottom)
Shifts each Tray up and down.
Stacker Paper Sensor (Top, Middle, Bottom)
Supervises if there are paper on each Tray.
Stacker Full Sensor (Top, Middle, Bottom)
Supervises if paper on each Tray is 100% full.
Stacker Half Full Sensor (Top, Middle, Bottom)
Supervises if paper on each Tray is 100% full.
Operating PrinciplesPaper Path27
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.3.2.3 Exit/Eject
Paper sent from the Transport is compiled and jogged on the Compiler Tray
by specified amount. Paper is bundled by stapler at the specified corner and is
ejected to the Stacker.
SR1518X
Figure 2-26. Exit/Eject
EXIT/EJECT PAPER PATH MAIN COMPONENTS
Transport Rolls and Pinch Rolls
Carries paper to the Compiler.
Complier Tray Exit Sensor
Supervises paper entering to the Compiler.
Exit Roll / Paddle Assembly
Carries paper to the Offset/Eject Rolls.
Eject Roll / Paddle Assembly
Eject Roll counter-revolves and sends paper to the Compiler Tray.
2.3.2.4 Compiler/Tamper
Eject Roll counter-revolves and sends paper to the Compiler Tray. When
paper is sent to the Compiler Tray, End Wall Motor lifts End Wall.
SR1520X
Figure 2-27. Compiler/Tamper
COMPILER /TAMPER PAPER PATH MAIN COMPONENTS
Eject Roll
Eject Roll counter-revolves and sends paper to the Compiler Tray.
Compiler Tray
Paper is compiled and jogged on the Compiler Tray by specified amount.
End Wall
Jogs paper. Lowered when stapling.
End Wall Motor
Shifts End Wall up and down.
Tamper
Tamps paper one by one.
Compiler Tray Solenoid
When amount of paper on the Compiler Tray reaches twenty five,
Compiler Tray Solenoid shifts Compiler Tray down.
Operating PrinciplesPaper Path28
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.3.2.5 Stapler
End Wall is shifted down when stapling. Stapler Motor shifts Stapler Unit
along the rail. Sensors along rail supervises the position of the Stapler Unit.
SR1507X
Figure 2-29. Front Corner Staple
SR1522X
Figure 2-28. Stapler
STAPLER PAPER PATH MAIN COMPONENTS
Stapler Front Corner Sensor
Detects the front corner position of the Stapler Unit.
Stapler Front Straight Sensor
Detects the front straight position of the Stapler Unit.
Stapler Rear Straight Sensor
Detects the rear straight position of the Stapler Unit.
Stapler Assembly
Includes Stapler Head and Stapler Cartridge.
SR1508X
Figure 2-30. Dual (Front and Rear Edge) Staple
Operating PrinciplesPaper Path29
EPSON EPL-N4000/EPL-N4000+ Optional Finisher StaplerRevision A
2.3.2.6 Eject/Offset
Eject Roll revolves counterclockwise and Eject Roll and Offset Roll eject paper
from the Compiler Tray.
SR1509X
Figure 2-31. Rear Edge Staple
SR1521X
Figure 2-33. Eject/Offset
SR1510X
Figure 2-32. Rear Corner Staple
Operating PrinciplesPaper Path30
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