Page 1
Duplex Unit
EPSON EPL-N1600 Option
®
Page 2
Notice
All ri
g
hts reserved. No part of this manual may be reprod uced, stored i n a re trieval sy ste m, or t ransmit ted in any form or by a ny mean s electr onic,
mechanical, photocopyin
g
, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detecte d, SEIKO EPSON would
g
reatly appreciate being informed of them.
The contents of this manual are subject to chan
g
e without notice.
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detecte d, SEIKO EPSON would
g
reatly appreciate being informed of them.
The above not withstandin
g
SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences
thereof.
EPSON is a re
g
istered 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.
Copyright © 1998 SEIKO EPSON CORPORATION. Printed in Japan.
Page 3
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
performin
g
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 performin
g
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
1. EPSON WARRANTY.
Page 4
About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the Duplex Unit for the
EPL-N1600. The instructions and procedures included herein are intended for the experienced repair technicians, and attention shou ld be
g
iven to
the precautions on the precedin
g
page.
Contents
This manual consists of six chapters and Appendix.
CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a
g
eneral 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
troubleshootin
g
.
CHAPTER 4. DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for
disassemblin
g
and assembling the product.
CHAPTER 5. ADJUSTMENTS
Provides Epson-approved methods for adjustment.
CHAPTER 6. MAINTENANCE
Provides preventive maintenance procedures and the
lists of Epson-approved lubricants and adhesives
required for servicin
g
the product.
APPENDIX
Provides the followin
g
additional information for
reference:
• Connector pin assi
g
nments
• Electric circuit boards components layout
• Exploded dia
g
ram
• Electrical circuit boards schematics
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
g
er
present durin
g
a procedure or an action. Be aware of all symbols when
they are used, and always read WARNING, CAUTION or NOTE
messa
g
es.
Indicates an operatin
g
or maintenance procedure, practice
or condition that, if not strictly observed, could result in
injury or loss of life.
Indicates an operatin
g
or maintenance procedure, practice,
or condition that, if not strictly observed, could result in
dama
g
e to, or destruction of, equipment.
May indicate an operatin
g
or maintenance procedure,
practice or condition that is necessary to accomplish a task
efficiently. It may also provide additional inf ormation that is
related to a specific subject, or comment on the results
achieved throu
g
h a previous action.
W ARNING
CAUTION
CHECK
POINT
Page 5
Revision Status
Revision Issued Date Description
Rev. 0 August 17, 1998 Preliminary release. (intended for service training purpose only)
Rev.A October 30, 1998 First release.
Page 6
EPSON EPL-N1600
Rev. 0 6
Table of Contents
Product Descriptions
OVERVIEW ......................................................................................... ...... ..... 9
Basic specification ..................................................................... ..... 9
Paper specification.......................................................................... 9
Reliability/Durability/servicea bilit y ................................................... 9
dimension and wei
g
ht................................................... ....... ........... 9
Operating Principles
OVERVIEW .................................................................................................. 11
Paper Transportation............................................................................... 11
paper transportation control.......................................................... 13
Scannin
g
direction in duplex printing............................................ 13
Drive Power Transmission ...................................................................... 14
Duplex unit drive power transmission (1)...................................... 15
Duplex unit drive power transmission (2)...................................... 15
Function of Duplex Unit Major Components............................................ 16
Vertical Unit ..................... ...... ....... ...... ....... ...... ............................. 16
Horizontal Unit .............................................................................. 18
Troubleshooting
DISASSEMBLY AND ASSEMBLY
OVERVIEW .................................................................................................. 23
Precautions ............................................................................................. 23
Tools........................................................................................................ 23
DISASSEMBLY AND ASSEMBLY ............................................................... 24
Duplex Unit Removal............................................................................... 25
Duplex Assembly Unit Vertical ................................................................ 26
Chute Cover............................................................................................ 27
Fan Assembly Duplex ............................................................................. 28
Sensor Assembly (Vertical)..................................................................... 29
Motor Duplex........................................................................................... 30
Solenoid .................................................................................................. 31
Shaft Latch & Lever................................................................................. 32
Rolls Pinch & Roll Assembly Exit............................................................ 33
Chute Lower & Roll Assembly................................................................. 34
Photo Interrupters (Rear I/L & Chute Cover I/L)..................................... 35
Photo Interrupter (PL11.1.9: Rear Interlock)................................. 35
Photo Interrupter (PL11.2.15: Chute Cover Interlock) .................. 35
Chute Upper............................................................................................ 36
Sensor Assembly (Horizontal)................................................................. 37
Roll Assembly #1 & Pinch Roll................................................................ 38
Plate Base............................................................................................... 39
Roll Assemblies #2 & #3 ......................................................................... 40
PWB Assembly Duplex ........................................................................... 41
Bracket & Gear Assembly ....................................................................... 42
Adjustment
Maintenance
Appendix
Connector Location ...................................................................................... 49
Exploded Dia
g
ram........................................................................................ 50
Duplex Unit (Optional)................................................................... 50
Duplex Unit Vertical I .................................................................... 52
Duplex Unit Vertical II ................................................................... 54
Duplex Unit Vertical III .................................................................. 56
Page 7
EPSON EPL-N1600
Rev. 0 7
Duplex Unit Horizontal I ................................................................ 58
Duplex Unit Horizontal II ............................................................... 60
Duplex Unit Chute......................................................................... 62
Page 8
PRODUCT DESCRIPTIONS
Page 9
EPSON EPL-N1600/Duplex Unit Chapter 1 Product Descriptions
Rev. 0 9
1.1 OVERVIEW
This section describes the specification of the 500 Sheets feeder.
BASIC SPECIFICATION
Paper Handlin
g
: Tray reverse
Drive Source: Driven by the base printer
Speed: A4 = 7.8PPM / Letter = 8.0PPM
Capacity: 1 sheet (in reverse tray)
Paper Feed Ori
g
in: Left edge of sheet
PAPER SPECIFICATION
Paper Type: <Standard Paper>
Xerox 4024DP 20 lb. (75
g
/m2) paper
<Normal Paper>
60 - 105
g
/m2 (16 - 28 lbs.)
- PPC Paper
- Bond paper
- Recycled paper
Paper Size: A4 (210 x 297mm)
Letter (8.5 x 11 inch)
G-Le
g
al (8.5 x 13 inch)
Le
g
al (8.5 x 14 inch)
RELIABILITY/DURABILITY/SERVICEABILITY
MPBF: 25,000 sheets or more
MTBF: 3,000 hours or more
Life: 300,000 sheets or 5 years
(whichever comes first)
Paper Feed Reliability *1:<Jam rate>
1/2000 sheets or less
<Misfeed>
1/2000 sheets or less
<Multiple sheet feed>
1/500 sheets or less
<Folded coners>
1C or more at 1/1000 sheets or less
(1C or less is not included)
NOTE:
*1:With recommended paper and normal conditions
MTTR: 30 minutes or less
DIMENSION AND WEIGHT
Dimension: 396 x 517 x 254 mm (W x D x H)
Wei
g
ht: 6.5 K
g
Page 10
OPERATING PRINCIPLES
Page 11
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 11
2.1 OVERVIEW
This section describes the operating principles of the Duplex Unit.
2.1.1 Paper Transportation
Paper is transported through the printer Base Engine and the Duplex
Unit alon
g
the paper path shown in the Figure below when the Duplex
Mode is selected or the optional Face UP Catch Tray is installed and
selected. In the Duplex Mode, a sheet of paper printed on one side is
g
uided into the Duplex Unit to re-feed, turned over in the Duplex Unit,
reversed, and fed a
g
ain into the Base Engine. When the optional Offset
Catch Tray is selected, a sheet printed on one side in the Simplex Mode
or a sheet printed on both sides is delivered into the Face Up Catch
Tray throu
g
h the Duplex Unit.
Figure 2-1. Paper Transport Path
Page 12
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 12
The Figure below is a cut-section side view of the EPL-N1600 with the
optional Duplex Unit attached that shows the paper path and the major
components directly related to the paper transportation.
Figure 2-2. Duplex Printing Paper Path
Page 13
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 13
PAPER TRANSPORTATION CONTROL
The fi
g
ure below shows the paper movements in duplex printing mode.
Figure 2-3. Paper Movement Control
SCANNING DIRECTION IN DUPLEX PRINTING
The fi
g
ure below shows the relationship between the main and sub
scannin
g
direction and a side of the page printed in duplex printing. The
controller sends the ima
g
e data to the engine according to the printing
order of pa
g
es, lines (raster lines) on each page and pixels on each line.
Figure 2-4. Scanning Direction
Page 14
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 14
2.1.2 Drive Power Transmission
The Duplex Unit is operated by the drive power generated by the Main
Motor and the Paper Handlin
g
Motor of the Base Engine and by the
drive power
g
enerated by the Motor Duplex within the Duplex Unit. The
fi
g
ure in right shows the relations of each components.
Figure 2-5. Drive Power Transmission
Page 15
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 15
DUPLEX UNIT DRIVE POWER TRANSMISSION (1) DUPLEX UNIT DRIVE POWER TRANSMISSION (2)
Page 16
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 16
2.1.3 Function of Duplex Unit Major Components
VERTICAL UNIT
Figure 2-6. Duplex Unit - Vertical unit Components
Motor Duplex: Generates the drive power for the Duplex
Unit.
Gear Cluster: Transmits the drive power from the Motor
Duplex to the Roll Assembly Exit and to Roll
Assembly #1 (part of the Horizontal Unit).
When the Vertical Unit is in place, the Idler
Gear in the Gear Cluster en
gag
es the gear on
the end of the Roll Assembly #1 shaft, and
transmits the drive power to Roll Assembly
#1. When the Vertical Unit is tilted back, the
Idler Gear disen
gag
e from the gear on the
Roll Assembly #1 shaft.
Roll Assembly: Works with Rolls Pinch to drive paper from
the Fuser Exit Roll Assembly into the Vertical
Unit. The drive power is transmitted from the
Base En
g
ine to the Roll Assembly, through
the Duplex Gear Assembly of the Base
En
g
ine and the gears in the Duplex Unit.
Roll Assembly Exit: Works with Rolls Pinch to dri ve paper out int o
the Face Up Catch Tray. The drive power for
the Roll Assembly Exit is transmitted from the
Motor Duplex throu
g
h the Gear Cluster.
Gate Upper: A movin
g
baffle that switches the paper path
to either Roll Assembly #1 or to the Roll
Assembly Exit.
Solenoid: To
gg
les the Gate Upper.
Page 17
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 17
Sensor Assembly: Sensor in the Vertical Unit which is located
near the inlet and detects paper which enters
the Duplex Unit. This sensor is also ca lled the
Vertical Sensor.
Chute Lower: Pushed down by the paper comin
g
from the
Gate Upper, allowin
g
the paper to proceed on
to Roll Assembly #1. Without the wei
g
ht of
the paper pushin
g
it down, the Gate returns to
its raised position. Then the sheet of paper,
driven in the reverse direction by Roll
Assembly #1, is
g
uided by the bottom side of
the Gate Lower to Roll Assembly #2.
Fan Duplex: Expels the air inside the Duplex Unit (and the
printer throu
g
h the rear exit of the printer) and
introduces fresh air into the Duplex Unit and
the printer) to prevent an excessive rise of the
inside temperature.
Latch: Secures the Vertical Unit to the rear of the
Base En
g
ine.
Page 18
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 18
HORIZONTAL UNIT
Figure 2-7. Duplex Unit - Horizontal Unit Components
Bracket & Gear Assembly:Receives the drive power from the Base
En
g
ine, and transmits it to Roll Assemblies
#2, #3, and #4 of the Horizontal Unit.
Roll Assembly #: Receives the drive power from the Motor
Duplex and Gear Cluster which are part of t he
Vertical Unit. Roll Assembly #1 rotates
forward when receivin
g
a sheet of paper with
the first side printed. Roll Assembly #1 then
rotates in reverse to drive the sheet to Roll
Assembly #2 in preparation for printin
g
the
second side of the sheet.
Roll Assemblies#2/3/4: Drive the paper into and out of the Duplex
Unit.
PWBA Assembly Duplex: Controls the Duplex Unit operation. The 4-bit
MPU on the PWBA Duplex receives
commands from the PWBA MMCU, receives
si
g
nals from the Sensors within the Duplex
Unit, actuates the Solenoid Duplex, and the
Motor Duplex, and returns the status of the
Duplex Unit.
Horizontal Sensor: Detects when a sheet of paper reaches Roll
Assembly #2.
Duplex Unit ChuteCover Interlock:
Photo interrupter (PL11.24) that monitors
whether or not the Duplex Unit Chute Cover
is in place.
Vertical Unit Interlock: Photo interrupter (PL11.24) that monitors
whether or not the Vertical Unit is in position
a
g
ainst the rear of the Base Engine.
Page 19
EPSON EPL-N1600/Duplex Unit Chapter 2 Operating Principles
Rev. 0 19
Plate Stopper: Support and limiting arm for the Vertical Unit
Solenoid: To
gg
les the Gate Upper.
Page 20
TROUBLESHOOTING
Page 21
EPSON EPL-N1600/Duplex Unit Chapter 3 Troubleshooting
Rev. 0 21
This chapter is not appliacble to the Duplex Unit.
Page 22
DISASSEMBLY AND ASSEMBLY
Page 23
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 23
4.1 OVERVIEW
This chapter explains how to disassemble the Duplex Unit and its
various mechanisms. Except where otherwise indicated, the
reassembly procedure is the reverse of the disassembly procedure.
4.1.1 Precautions
This section describes the precautions you must take to prevent
accidents durin
g
disassembly and reassembly work. Be sure to carry
out all work in accordance with the precautions and
g
eneral instructions
provided in this manual.
4.1.2 Tools
The following table lists the tools you need to disassemble and
reassemble the printer.
Table 4-1. Required Tools
CAUTION
Be careful to avoid injury from frame edges and other
sharp or protruding areas of the printer.
Avoid touching IC elements with bare hands, so as to
prevent possible damage from electrostatic
discharge. If you need to touch these areas, wear
appropriate electrostatic protection gear
(electrostatic wrist band, etc.).
To ensure work efficiency and safety, use only the
tools specified in this manual.
The unit uses screws of many different types. Be sure
to note the correct location for each screw before
removing it. Inserting screws into the wrong places
may strip or damage the screw holes.
Tool
Market
Availability
Code
Phillips screwdriver Yes B743800200
Tweezers Yes B641000100
Round nose pliers Yes B740400100
Page 24
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 24
4.2 DISASSEMBLY AND ASSEMBLY
This section describes the procedures for disassembling the Duplex
Unit. The assembly of the unit can be made by performin
g
the
disassembly step in reverse order unless otherwise specified, and the
assembly procedure is therefore omitted in this manual.
Page 25
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 25
4.2.1 Duplex Unit Removal
1. Switch OFF printer power and remove the AC power cord from the
rear of the printer.
2. Disconnect all interface cables from the rear of the printer.
3. Remove the 500 Sheet Feeder, if one is installed.
4. Push the Vertical Unit release lever to the rear (1) and tilt the
Vertical Unit away from the printer (2).
5. Press the Feeder Joint Clips to
g
ether and remove the two rear
feeder joints securin
g
the Duplex Unit to the Printer.
6. Remove the 250 Sheet Cassette and the Chute Assembly (4).
7. Press the feeder joint clips to
g
ether and remove the two front feeder
joints securin
g
the Duplex Unit to the printer (5).
8. Lift the base en
g
ine off of the Duplex Unit.
Figure 4-1. Duplex Unit Removal
F4-1a
F4-1b
Page 26
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 26
4.2.2 Duplex Assembly Unit Vertical
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Slide the end of the Plate Stopper off of the post on the Frame L/H
(1).
4. Tilt back the Vertical Unit (2).
5. Remove the wire clamp that holds the harness.
6. Remove the Bracket Sensor of the Rear I nter lock Swi tch ( PL11.1 .9:
Photo Interrupter) (4).
7. Disconnect J230 (5).
8. Remove the two screws that are securin
g
the Plate Assembly Pivot
and
g
round wire to the Frame L/H (6).
9. Pry off the Plate Assembly Pivot (7).
10. Slide the Duplex Assembly Unit Vertical to the left to free the ri
g
ht
pivot from the Horizontal Unit, and remove the Vertical Unit.
Figure 4-2. Duplex Assembly Unit Vertical Removal
F4-2a
F4-2b
Page 27
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 27
4.2.3 Chute Cover
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Remove the Duplex Assembly Unit Vertical.
4. Remove the two screws that secure the Pl ate Cover to the Frame L/
H, and remove the Plate Cover.
5. Remove the seven screws that are securi n
g
the Chute Cover to the
Duplex Assembly Unit Vertical.
6. Lift the Duplex Assembly Unit Vertical out of the Chute Cover.
Figure 4-3. Chute Cover Removal
Page 28
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 28
4.2.4 Fan Assembly Duplex
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Remove the Duplex Assembly Unit Vertical.
4. Remove the Chute Cover.
5. Disconnect P249/J2491 and route the Harness Vertical out of the
Frame.
6. Remove the two screws that secure the Fan Assembly Duplex to
the Bracket Fan.
7. Remove the Fan.
Figure 4-4. Fan Assembly Duplex Removal
F4-
4
Page 29
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 29
4.2.5 Sensor Assembly (Vertical)
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Remove the Duplex Assembly Unit Vertical.
4. Remove the Chute Cover.
5. Remove the Fan Assembly Duplex.
6. Disconnect J246 from the Sensor Assembly (Vertical).
7. Press in on the latchin
g
clips that are securing the Sensor to the
Frame, and remove the Sensor.
Figure 4-5. Sensor Assembly (Vertical) Removal
Page 30
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 30
4.2.6 Motor Duplex
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Remove the Duplex Assembly Unit Vertical.
4. Remove the Chute Cover.
5. Disconnect J244 from the Motor Duplex.
6. Remove the two screws that are securin
g
the Motor Duplex to the
Bracket, and remove the Motor.
Figure 4-6. Motor Duplex Removal
Page 31
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 31
4.2.7 Solenoid
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Remove the Duplex Assembly Unit Vertical.
4. Remove the Chute Cover.
5. Disconnect J2471 (Solenoid) from P247.
6. Free the harness of the Solenoid from the wire clamp.
7. Turn the Chute Cover upside down.
8. Remove the screw that is securin
g
the Solenoid to the Frame L/H.
9. Remove the Solenoid.
Figure 4-7. Solenoid Removal
Page 32
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 32
4.2.8 Shaft Latch & Lever
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Remove the Duplex Assembly Unit Vertical.
4. Remove the Chute Cover.
5. Remove the screw that is securin
g
the left Latch to the Shaft Latch,
and remove the Latch.
6. Remove the Sprin
g
that is attached to the right Latch.
7. Remove the screw that is securin
g
the right Latch to the Shaft Latch,
and remove the Latch.
8. Slide the Shaft Latch, alon
g
with the attached Lever, to the right and
out of the Frame.
Figure 4-8. Shaft Latch/Lever Removal
Page 33
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 33
4.2.9 Rolls Pinch & Roll Assembly Exit
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Remove the Duplex Assembly Unit Vertical.
4. Remove the Chute Cover.
5. Remove the Fan Assembly Duplex.
6. Remove the three screws that secure the Bracket Fan to the Chute
Upper 2 and Plate Tie.
7. Remove the E-rin
g
s from both ends of the shaft of the Roll
Assembly Exit.
8. Remove the Bearin
g
from the right end of the shaft.
9. Remove the Gear and Bearin
g
from the left end of the shaft.
10. Slide the shaft to the left until the ri
g
ht end is freed from the Frame.
11. Slide the shaft to the ri
g
ht and out of the Frame.
12. Press down each Roll Pinch clip and remove the three Pinch Rolls
from the Chute.
Figure 4-9. Rolls Pinch/Roll Assembly Exit Removal
F4
-
Page 34
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 34
4.2.10 Chute Lower & Roll Assembly
1. Remove the Duplex Unit.
2. Remove the Chute Upper.
3. Remove the Duplex Assembly Unit Vertical.
4. Remove the Chute Cover.
5. Remove the two screws that are securin
g
the Chute Invert-V/TRA to
the Frame R/H and Bracket Pivot R/H.
6. Pull the Frame R/H away from the Chute Invert-V/TRA so you can
free the Chute Lower ri
g
ht pivot from the Frame R/H.
7. Slide the Chute Lower to the ri
g
ht and free the Chute Lower left
pivot from the Frame L/H and remove the Chute Lower from the
Frame.
8. Remove the E-rin
g
s from both ends of the shaft of the Roll
Assembly.
9. Remove the Bearin
g
from the right end of the shaft:
10. Remove the Gear and Bearin
g
from the left end of the shaft.
11. Lift the Roll Assembly off of the Chute Lower.
Figure 4-10. Chute Lower/Roll Assembly Removal
Page 35
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 35
4.2.11 Photo Interrupters (Rear I/L & Chute Cover I/
L)
1. Remove the Duplex Unit.
2. Slide the end of the Plate Stopper off of the post on the Frame L/H.
See the illustration (1).
3. Tilt back the Duplex Assembly Unit Vertical.
PHOTO INTERRUPTER (PL11.1.9: REAR INTERLOCK)
4. Remove the two screws that is securin
g
the Rear Interlock Bracket
Sensor to the Frame.
5. Remove the Bracket, alon
g
with the attached Rear Interl ock Switch.
6. Disconnect J2732 from the Rear Interlock Switch.
7. Press in on the lockin
g
clips and remove the Rear Interlock Switch
from the Bracket.
PHOTO INTERRUPTER (PL11.2.15: CHUTE COVER INTERLOCK)
8. Remove the Chute Upper.
9. Slide the Chute Assembly out of Duplex Unit.
10. Press in on the lockin
g
clips and remove the Cute Cover Interlock
Switch from the Support Duplex-L/H.
11. Disconnect J2733 from the Chute Cover Interlock Switch.
Figure 4-11. Photo Interrupter (Rear I/L, Chute Cover I/L) Removal
Page 36
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 36
4.2.12 Chute Upper
1. Tilt back the Duplex Assembly Unit Vertical.
2. Remove the four screws that are securin
g
the Chute Upper to the
Horizontal Unit.
3. Remove the Chute Upper.
Figure 4-12. Chute Upper Removal
Page 37
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 37
4.2.13 Sensor Assembly (Horizontal)
1. Remove the Duplex Unit.
2. Remove the Chute Assembly.
3. Remove the Plate Base.
4. Disconnect J2731 from the Sensor Assembly (Horizontal).
5. Press in on the lockin
g
clips and remove the Sensor Assembly
(Horizontal) from the Chute Assembly.
Figure 4-13. Sensor Assembly (Horizontal) Removal
F
Page 38
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 38
4.2.14 Roll Assembly #1 & Pinch Roll
1. Remove the Duplex Unit.
2. Slide the end of the Plate Stopper off of the post on the Frame L/H.
See illustration (1).
3. Tilt back the Duplex Assembly Unit Vertical.
4. Remove the Chute Upper.
5. Remove the two screws that are securin
g
the Chute to the Supports
Duplex R/H and L/H and remove the Chute (1).
6. Loosen the screw that secures the Rear Interl ock Swit ch (PL11.1. 8:
Bracket Sensor) to the Duplex Unit Horizontal II (PL11.2) (2).
7. Remove the E-rin
g
s from both ends of Roll Assembly #1.
8. Remove the bearin
g
from the right end of the Roll Assembly #1.
9. Remove the
g
ear and bearing from the left end of the Roll As sembly
#1.
10. Lift the shaft up and out of the Chute.
11. Slide the shaft to the ri
g
ht and out of the Chute.
12. Unhook and remove the two Sprin
g
s that hold the Brackets Pinch to
the Chute.
13. Remove the two Brackets Pinch alon
g
with the Roll Pinch from the
Chute.
14. Remove the two Brackets Pinch from the ends of the Pinch Roll.
Figure 4-14. Roll Assembly #1/Pinch Roll Removal
Page 39
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 39
4.2.15 Plate Base
1. Remove the Duplex Unit.
2. Slide the end of the Plate Stopper off of the post on the Frame L/H.
See the illustration (1).
3. Tilt back the Vertical Unit.
4. Turn the Duplex Unit upside down.
5. Remove the ei
g
ht screws that are securing the Plate Base to the
Horizontal Unit, and remove the Plate Base.
Figure 4-15. Plate Base Removal
Page 40
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 40
4.2.16 Roll Assemblies #2 & #3
1. Remove the Duplex Unit.
2. Remove the Plate Base.
3. Set the Horizontal Unit on the Support Duplex L/H-.
4. Remove the two screws that are securin
g
the Chute Assembly to
the Support Duplex-R/H.
5. Carefully pull the Chute Assembly a few inches away from the
Support.
6. Remove the E-rin
g
from the end of Roll Assembly #2 (shaft with two
rubber rolls).
7. Remove the bearin
g
from the top end of Roll Assembly #2.
8. Slide the Roll Assembly #2 down to free the bearin
g
at the bottom
end of the Assembly.
9. Pull the top end of the Roll Assembly #2 away from the Horizontal
Unit and remove the Assembly.
10. Remove the E-rin
g
from the end of Roll Assembly #3 (shaft with one
rubber roll).
11. Remove the bearin
g
from the top end of Roll Assembly #3.
12. 1Slide Roll Assembly #3 down to free the bearin
g
at the bottom end
of the Assembly.
13. Pull the top end of the Roll Assembly #3 away from the Horizontal
Unit and remove the Assembly.
Figure 4-16. Roll Assemblies #2/#3 Removal
Page 41
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 41
4.2.17 PWB Assembly Duplex
1. Remove the Duplex Unit.
2. Disconnect J263, J272, J273, and J274 from the PWB Assembly
Duplex.
3. Remove the screw that is securin
g
the PWB Assembly Duplex to
the Support Duplex-L/H.
4. Slide the end of the PWB out of the slot in the Support Duplex L/H
and remove the PWB.
Figure 4-17. PWB Assembly Duplex Removal
Page 42
EPSON EPL-N1600 / Duplex Unit Chapter 4 DISASSEMBLY AND ASSEMBLY
Rev. 0 42
4.2.18 Bracket & Gear Assembly
1. Remove the Duplex Unit.
2. Remove the PWB Assembly Duplex.
3. Slide the Chute Assembly out from the Duplex Unit.
4. Remove the two screws that are securin
g
the Plate Tie to the
Support Duplex-L/H and Support Duplex-R/H, and remove the Plate
Tie.
5. Remove the three screws that are securin
g
the Bracket & Gear
Assembly to the Support Duplex L/H. The rear screw also secures a
g
round wire to the Bracket. The middle screw also secures the
Bracket PWBA to the Gear Assembly Bracket.
6. Pull up and tilt back the Gear Assembly as you careful ly re move t he
Gear Assembly from the Support Duplex L/H.
Figure 4-18. Bracket & Gear Assembly Removal
CAUTION
The Gear Assembly gears are not secured to their
respective shafts, and they can slide off during Gear
Assembly removal. Tilt the Gear Assembly back to
keep the gears in place during removal and
replacement.
Page 43
ADJUSTMENT
Page 44
EPSON EPL-N1600/Duplex Unit Chapter 5 Adjustment
Rev. 0 45
There is no adjustment required when repairing the Duplex Unit.
Page 45
MAINTENANCE
Page 46
EPSON EPL-N1600/Duplex Unit Chapter 6 Maintenance
Rev. 0 47
There is no specific maintenance required for the duplex unit.
Page 47
APPENDIX
Page 48
EPSON EPL-N1600/Duplex Unit Chapter 7 Appendix
Rev. 0 49
7.1 Connector Location
*1:"@" mark at the beginning of a harness name indicates that the subject harness is a
part of the component from where the harness extends.
Figure 7-1. Connector Location Diagram
Connector Location Harness
J229
P/J230
6 Harness Sensor Horizontal
Harness Vertical
P/J244 9 Harness Vertical
P/J246 10 Harness Vertical
P/J247
J2471
8 @ Solenoid *1
Harness Vertical
P/J249
J2491
7 @ Fan Assembly Duplex
Harness Vertical
J252 5 Harness 15P
P/J263 3 Harness 15P
P/J272 4 Harness 7P
P/J273 1 Harness Sensor 9P
P/J2731 13 Harness Sensor 9P
P/J2732 11 Harness Sensor 9P
P/J2733 12 Harness Sensor 9P
P/J274 2 Harness Sensor Horizontal
P/J282 14 Harness 7P
Page 49
EPSON EPL-N1600/Duplex Unit Chapter 7 Appendix
Rev. 0 50
7.2 Exploded Diagram
DUPLEX UNIT (OPTIONAL)
1. Duplex Unit
(with PL10.2, PL10.3, PL10.4, PL11.1, PL11.2, PL12.1 and 5~8)
2. Reference only (Exploded on PL10.2, PL10.3, PL10.4)
3. Reference only (Exploded on PL11.1, PL11.2)
4. Reference only (Exploded on PL12.1)
5. Clip Chute $
6. Chute Duplex
7. Plate Cap
8. Joint Feeder (PL9.1.22) $
Page 50
Page 51
EPSON EPL-N1600/Duplex Unit Chapter 7 Appendix
Rev. 0 52
DUPLEX UNIT VERTICAL I
1. Duplex Assembly Unit Vertical (with 2 - 5, PL10.3, PL10.4) $
2. Sensor Assembly $
3. Bracket Fan
4. Fan Assembly Duplex $
5. Chute Cover
6. --
Page 52
Page 53
EPSON EPL-N1600/Duplex Unit Chapter 7 Appendix
Rev. 0 54
DUPLEX UNIT VERTICAL II
1. Harness Vertical
2. Clamp NSB1207
3. Bracket
4. Motor Duplex $
5. Gear
6. Wire
7. Plate Cover
8. Gear
9. Sprin
g
Torsion-Latch LH
10. Gear
11. Gear
12. Frame L/H
13. Solenoid $
14. Gear
15. Gear Idler
16. Sprin
g
Extension
17. Roll Trackin
g
18. Gear Idler
19. Bracket
20. Frame R/H
21. Sprin
g
Torsion-Latch RH
22. Plate Assembly Pivot
Page 54
Page 55
EPSON EPL-N1600/Duplex Unit Chapter 7 Appendix
Rev. 0 56
DUPLEX UNIT VERTICAL III
1. Chute Lower
2. Bearin
g
3. Roll Assembly
4. Bearin
g
5. Gear
6. Chute Lower
7. Sprin
g
Earth
8. Chute Invert-V/TRA
9. Chute Upper
10. Sprin
g
R
11. Sprin
g
L
12. Plate Tie
13. Roll Pinch
14. Chute Upper 2
15. Bearin
g
16. Gear
17. Latch
18. Shaft Latch
19. Sprin
g
20. Roll Assembly Exit
21. Gate Upper
22. Lever
23. Bracket Pivot R/H
Page 56
Page 57
EPSON EPL-N1600/Duplex Unit Chapter 7 Appendix
Rev. 0 58
DUPLEX UNIT HORIZONTAL I
1. Duplex Assembly Unit Horizontal (with 2 - 24, PL11.2, PL12.1) $
2. Roll Assembly #3
3. Roll Assembly #2
4. Chute Assembly
5. Bearin
g
6. Gear Z16
7. Guide
8. Bracket Sensor
9. Photo Interrupter $
10. Chute Upper
11. GearA
12. Roll Assembly #1
13. Bearin
g
14. Chute
15. Bracket Pinch
16. Sprin
g
17. Roll Pinch
18. Plate Tie
19. Chute Lower
20. Plate Pivot R/H
21. Sprin
g
Earth
22. Sensor Assembly $
23. Support Duplex-R/H
24. Plate Base
Page 58
Page 59
EPSON EPL-N1600/Duplex Unit Chapter 7 Appendix
Rev. 0 60
DUPLEX UNIT HORIZONTAL II
1. Support Duplex-L/H
2. Bracket & Gear Assembly
3. Bracket PWBA
4. Sprin
g
Earth
5. Sprin
g
Earth
6. PWBA Assembly Duplex $
7. Harness Sensor 9P
8. Harness Sensor Horizontal
9. Plate Stopper
10. Pin
11. Harness 15P
12. Sprin
g
13. Plate Pivot L/H
14. Harness 7P
15. Photo Interrupter $
Page 60
Page 61
EPSON EPL-N1600/Duplex Unit Chapter 7 Appendix
Rev. 0 62
DUPLEX UNIT CHUTE
1. Chute Assembly (with 2 - 13) $
2. Chute
3. Roll Pinch Assembly
4. Roll Pinch Assembly
5. Chute Pass A
6. Sprin
g
Earth
7. Chute Pass B
8. Roller Assembly # 4
9. Sprin
g
Earth
10. Bearin
g
11. Gear Z16
12. Roll Pinch Assembly
13. Cover Front
Page 62
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