Epson EPL N2050 Service Manual
®
SERVICE MANUAL
SERVICE MANUAL
SERVICE MANUALSERVICE MANUAL
Monochrome Laser Printer
EPSON EPL-N2050 Optional Units
SEPG99010
Notice:
n 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.
n The contents of this manual are subject to change witho ut notice.
n 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.
n The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the conse quences
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.
Copyright © 1999 SEIKO EPSON CORPORATION. Printed in Japan.
PRECAUTIONS
Precautionary notations through out the text are categorized relative to 1) Personal inj ury and 2) Damage to equipment.
W ARNING
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 a
WARNING heading.
CAUTION
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. NOWORK 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.
PREFACE
This manual describes basic functions, theory of electrical and mechanical operations, maintena nce and repai r procedures of EPL-N2050 Optional
Units. The instructions and procedur es incl uded herei n are int ended for t he experie nced repai r techni cians, and close at tention should be given to the
precautions on the preceding page. Chapters are organized as follows:
CHAPTER 1. Mulibin Unit
CHAPTER 2. Duplex Unit
CHAPTER 3. Shifter
CHAPTER 4. Envelope Feeder
CHAPTER 5. Large Capacity Paper Unit
Revision Status
Revision Date of Issue
A December 2 , 1999 First Release
B January 13, 2000 Parts lists and exploded diagrams have been revised.
Description
EPSON EPL-N2050 Optional Units Revision B
Contents
Chapter 1 Multibi n Unit
1.1 Installation and Removal of Multibin Unit ........................................ 10
1.1.1 Installation ................ ....... ...... ....... ....................................... ...... ... 10
1.1.2 Removal ....................................... ...... ....... ...... ....... ...... ................ 10
1.2 Specifications
1.2.1 Features .................... ....... ...... ....... ...... ....................................... ... 11
1.2.2 Basic Specification ............................ ....... ...... ....... ...... ....... ...... ... 11
1.2.3 Paper Specification ...................................................................... 12
1.2.4 Reliability, Durability, Serviceability .......................................... 13
1.2.5 Operating Conditions .................................................................. 13
1.2.6 Electrical Characteristics ............................................................. 13
1.2.7 Applicable Standards and Regulations ..................................... 13
1.2.8 External Dimension ..................................................................... 13
1.2.9 Operating Specification .............................................................. 14
1.3 Troubleshooting
1.3.1 If Paper Jam Occured Inside a Tray ........................................... 15
1.4 Disassembly and Ass embly ................................................................ 16
1.4.1 Preparation ......... ...... ....... ...... ....... ...... ....... ...... ....... ...... ................ 16
1.4.2 Notations in the Manual ............................................................. 16
1.4.3 Cover Left, Cover Top and Cover Right ..................................... 17
1.4.4 Chute Rear and Chute Assy Lower
(with 7-10, 24) ............................................................................ 18
1.4.5 Sensor Pass INT .................... ....... ...... ....... ...... ....... ...... ....... ...... ... 19
1.4.6 Tray Assy Multibin Unit 2 (with 36-38): Tray1-9 and
Tray Assy Multibin Unit 1 (with 37, 38, 42): Tray10 ................ 20
1.4.7 Panel Assy, PWBA LED, and Switch Main ................................. 22
1.4.8 Frame Assy LVPS ........................................................................ 23
1.4.9 PWBA Main .................................................................................. 25
1.4.10 Solenoid Assy Link (with 23-25) ............................................... 26
1.4.11 Sensor Stack Full ....................................................................... 28
1.4.12 Stopper Key Lock L .......................... ....... ...... ....... ...... ....... ...... ... 30
1.4.13 Gate ..... ....... ...... ...... ....... ...... ....... ...... ....................................... ... 31
1.4.14 Harness Assy MCU .................................................................... 32
....................................................................................... 11
.................................................................................. 15
1.4.15 Motor Bracket Assembly (with 19, 23, 24, 34) ......................... 33
1.4.16 Solenoid Assy R ........................................................................ 35
1.4.17 Belt Synchronous ...................................................................... 36
1.4.18 Stopper Key Lock R ................................................................... 38
1.4.19 Roll Assy Transport ................................................................... 39
1.4.20 Roll Exit ...................................................................................... 40
1.4.21 Solenoid Direction ..................................................................... 42
1.5 Parts List and Exploded Diagram
...................................................... 44
Chapter 2 Duplex Unit
2.1 Installation and Removal of Duplex Unit .......................................... 49
2.1.1 Installation ................................................................................... 49
2.1.2 Removal ....................................................................................... 49
2.2 Introduction
2.2.1 Preparation .................................................................................. 50
2.2.2 Precautions .................................................................................. 50
2.2.3 Notations in the Manual ............................................................. 50
2.3 Disassembly and Assembly
2.3.1 Chute Assy Turn DUP ................................................................. 51
2.3.2 Chute Assy Connector DUP ........................................................ 52
2.3.3 Chute Assy Upper DUP ............................................................... 53
2.3.4 Cover Drive DUP .......................................................................... 54
2.3.5 Roll Assy DUP: Rear .................................................................... 55
2.3.6 Roll Assy DUP: Middle ................................................................ 57
2.3.7 Roll Assy DUP: Front ................................................................... 59
2.3.8 Stopper Belt DUP ........................................................................ 61
2.3.9 Motor Assy DUP .......................................................................... 62
2.3.10 Belt Synchronous ...................................................................... 63
2.3.11 Sensor Photo IN-H (L) ............................................................... 64
2.3.12 PWBA DUP ................................................................................. 65
2.3.13 Cover DUP .................................................................................. 66
2.3.14 Sensor Assy DUP ...................................................................... 67
......................................................................................... 50
................................................................ 51
6
EPSON EPL-N2050 Optional Units Revision B
2.4 Parts List and Exploded Diagram ....................................................... 68
Chapter 3 Shifter
3.1 Installation and Removal of the Shifter ............................................ 72
3.1.1 Installing the Shifter .................................................................... 72
3.1.2 Shifter Removal ........................................................................... 72
3.2 Introduction
3.2.1 Preparation ......... ...... ....... ...... ....... ...... ....... ...... ....... ...... ................ 73
3.2.2 Precaution ............................. ....... ...... ....... ...... ............................. 73
3.2.3 Notations in the Text ................................................................... 73
3.2.4 Tray Exit Assy .............................................................................. 74
3.2.5 Spring Tray .................................................................................. 75
3.2.6 Tray Exit ....................................................................................... 76
3.2.7 Link Weight .................................................................................. 77
3.2.8 Cover Rear .................................................................................... 78
3.2.9 Chute Exit Inner Assy .................................................................. 79
3.2.10 Cover Lower ............................................................................... 80
3.2.11 PWBA OCT ................................................................................. 81
3.2.12 Motor Drive Assy ................ ....... ...... ....... ...... ....... ...... ....... ...... ... 82
3.2.13 Eliminator ...................... ...... ....... ...... ....... ...... ....... ...... ................ 83
3.2.14 Solenoid Direction ..................................................................... 84
3.2.15 Sensor Assy Exit OCT ............................................................... 85
3.2.16 Actuator Full Stack .................................................................... 86
3.2.17 Sensor Full Stack ....................................................................... 87
3.2.18 Roll Assy Offset ......................................................................... 88
3.2.19 Roll Assy MID OCT .................................................................... 90
3.2.20 Chute Exit Inner ......................................................................... 92
3.2.21 Offset Assy ................................................................................. 93
3.2.22 Motor Offset Assy ...................................................................... 95
3.2.23 Sensor OCT Home ..................................................................... 96
3.3 Parts List and Exploded Diagram
......................................................................................... 73
....................................................... 97
Chapter 4 Envelope Feeder
4.1 Installation and Removal of Envelope Feeder ................................ 101
4.1.1 Installation ................................................................................. 101
4.1.2 Removal ..................................................................................... 101
4.2 Introduction
4.2.1 Preparation ................................................................................ 102
4.2.2 Precautions ................................................................................ 102
4.2.3 Notations in Text ....................................................................... 102
4.3 Disassembly and Assembly
4.3.1 Chute Top ................................................................................... 103
4.3.2 Roll Pinch and Shaft Pinch ....................................................... 104
4.3.3 Arm Weight ................................................................................ 105
4.3.4 Cover Bottom ............................................................................. 106
4.3.5 Tray Extension ........................................................................... 107
4.3.6 Sensor Assy Exit ENV ............................................................... 108
4.3.7 Kit Roll Assy Retard ................................................................... 109
4.3.8 Cover Gear ................................................................................. 110
4.3.9 Clutch ELEC 29 ........................................................................... 111
4.3.10 Roll Assy Trans ........................................................................ 112
4.3.11 Roll Assy Bottom ..................................................................... 113
4.3.12 Roll Pinch ENV ......................................................................... 115
4.3.13 Belt Feed .................................................................................. 116
4.3.14 Actuator N/P Envelope ............................................................ 117
4.3.15 Sensor Photo: No Paper ......................................................... 118
4.3.16 Roll Assy Feed 1 ...................................................................... 119
4.3.17 Roll Assy Feed 2 ...................................................................... 121
4.3.18 Roll Feeder: Roll Feed 1 .......................................................... 122
4.3.19 Roll Feeder: Roll Feed 2 .......................................................... 123
4.3.20 Connector ENV ........................................................................ 124
4.3.21 PWBA ENV ............................................................................... 125
4.4 Parts List and Exploded Diagram
....................................................................................... 102
.............................................................. 103
.................................................... 126
7
EPSON EPL-N2050 Optional Units Revision B
Chapter 5 Large Capacity Paper Unit
5.1 Installation and Removal of the Large Capacity Paper Unit ......... 130
5.1.1 Installing the Large Capacity Paper Unit ................................. 130
5.1.2 Large Capacity Paper Unit Removal .................... ...... .............. 130
5.2 Introduction
5.2.1 Preparation ......... ...... ....... ...... ....... ...... ....... ...... ........................... 131
5.2.2 Precaution ............................. ....... ...... ....... ...... ....... .................... 131
5.2.3 Notations in the Text ................................................................. 131
5.3 Disassembly and Ass embly
5.3.1 Bracket Assy OPT Gear ............................................................. 132
5.3.2 Plate Top F ......... ...... ....... ...... ....... ...... ....... ...... ....... ...... ....... ...... . 133
5.3.3 Harness Assy Size Option ........................ ...... ....... ...... ....... ...... . 134
5.3.4 PWBA Size Option ..................................................................... 136
5.3.5 Harness Assy Size M ................................................................ . 137
5.3.6 Housing Side R .......................................................................... 138
5.3.7 Feeder ....................... ....... ...... ....... ...... ....... ...... ....... ...... ....... ....... 139
5.3.8 Housing Side L ........................................................................... 140
5.3.9 Size Sensor Housing (with 8-12) .............................................. 141
5.3.10 Housing Assy Size Sensor (with 5-13) ................................... 142
5.3.11 Roll Assy Turn .......................................................................... 143
5.3.12 Spring Chute ............................................................................ 145
5.3.13 Actuator N/P ............................................................................. 146
5.3.14 Sensor Photo: Face Control, Low Paper ................................ 147
5.3.15 Feeder Assy ................... ...... ....... ...... ....... ...... ....... ...... ....... ...... . 148
5.3.16 Roll Assy ........................ ...... ....... ...... ....................................... . 150
5.3.17 PWBA Feeder ........................................................................... 151
5.3.18 Clutch Assy Feed ..................................................................... 152
5.3.19 Socket ...................................................... ...... ....... ...... ....... ...... . 154
5.4 Parts List and Exploded Diagram
....................................................................................... 131
.............................................................. 132
..................................................... 155
8
MULTIBIN UNIT
CHAPTER
1
EPSON EPL-N2050 Optional Units Revision B
1.1 Installation and Removal of Multibin Unit
1.1.1 Installation
1. Switch off the printer’s power.
2. Place one hand under the Multibin Unit Bins and the other hand on the
Chute Rear handle.
3. Position the Multibin Unit over the printer.
4. Slide the positioning hook into the slot on the printer Cover Assy Top.
5. Lower the rear of the Multibin Unit onto the Cover Assy Top, carefully
lining up the P/J at the bottom rear of the Multibin Unit with the
corresponding P/J in the open Cover Option hole.
6. Press down on the rear of Multibin Unit until it snaps into place on the
Cover Assy Top.
7. Reconnect all AC power cords to the rear of the Multibin Unit.
1.1.2 Removal
1. Make sure the printer is off.
NOTE: Place a thick plate under the bottom plate of Multibin Unit to
protect metallic hook and the Chute Lower and the P/J
connector at the bottom of Multibin Unit.
2. Disconnect all AC power cords from the rear of the Multibin Unit.
3. Press the two latches that are located at the bottom-rear of the Multibin
Unit while you lift up the rear of the Multibin Unit.
4. Slide the positioning hook out of the Cover Assy Top and remove the
Multibin Unit.
NOTE: Mount the Cover Option on t he Cover Assy Top, if the Mu ltibin
Unit is removed from the printer for a long time.
Figure 1-1. Multibin Unit
Multibin Unit Installation and Removal of Multibin Unit 10
EPSON EPL-N2050 Optional Units Revision B
1.2 Specifications
1.2.1 Features
o The Mult ibin Unit is installed on top of the printer. This Unit is
electrically connected to the printer by connectors, and when the
printer is switched on, it can automatically detect if the Multibin Unit
is installed, and each bin is full or not full, on condition t hat the switch
of the Multibin Unit is on before the printer is turned on.
o The Mu ltibin Unit has independ ent drive and logic. The switching flap
installed in the upper part of the printer switches the paper path
between the printer output tray and the Multibin Unit.
o Each bin can hold up to 45 sheets of paper, and the entire Unit can
hold a total of 450 sheets (See Table 1-1 on the right).
o Bins are drawer-type trays that are locked by solenoid and lock levers
all the time. All ten bins can be unlocked by pressing the Multibin
Open button.
o Pass word to open e ach bin can be s et. Once pa sswords ar e set for the
bins, only the authenticated bin can be unlocked.
1.2.2 Basic Specification
o Name Multibin Unit
o Paper Output Method
Straight Output, Switching Flap
o Installation Installed on top of the printer exit (desk top type
installed by users)
o Drive Method Built-in Motor Drive
o Interface Transmit: Installation of the Unit, bin full,
bin open/closed.
Receive: Signal to determine which bin paper
should be output to.
o Paper Type / Size Standard paper, normal paper (60-105g/m
16-28lb), special paper, and A4 or Letter (LT)
o Capacity
Table 1-1. Capacity
Condition Capacity of Each Bin Total Capacity (10 bins)
10°C/30% to 27°C/65% 45 sheets 450 sheets
28°C/85% 30 sheets 300 sheets
2
:
NOTE: When standard paper is used.
o Paper Fe ed Standard Center-line reference for each paper size
o Detection Structure
n
Paper Full: Automatic detection by Photo Sensor + Actuator
n
Bin Open/Closed: Automatic detection by Micro Switch
o Dimension 403mm (W) x 360mm (D) x 364 mm (H)*
*Protrusions at the bottom of the Unit are not
included.
o Weight 9.2 kg
o Acoustic Noise Max. of 51.5db (A) when instald on the printer.
(Based on ISO7779)
Multibin Unit Specifications 11
EPSON EPL-N2050 Optional Units Revision B
o Power Consumption
Table 1-2. Power Consumption
100V/115V 220V/240V
Maximum 74W 69W
Average (Continuous Printing) 36W 37W
All bins closed* 8W 12W
Average
(Stand-by)
*When Energy Star Mode is used.
1 bin open 17W 20W
5 bin open 33W 34W
All bins open (TBD) (TBD)
o Power Supply
Universal type which meets the following specifications:
100V Model: 100V/120V 90V-140V (50/60Hz ±3%)
200V Model: 220V/240V 198V-264V (50Hz ±3%)
1.2.3 Paper Specification
o Supported Paper Type
n
Standard Paper: LT: Xerox-4024
A4: Xerox-RX80, FX-L
n
Normal Paper: 60-105g/m2 (16-28lb)
Commonly used copy paper, bond paper, and
recycled paper
n
Special Paper: Labels, OHP Films
o Supported Paper Size
n
Letter (216 x 279mm: 8.5 x 11”)
n
A4 (210 x 297mm)
NOTE: Use of paper other than the above size will cause paper jam,
or such paper cannot be removed from the paper exit tray
easily.
It is therefore necessary to reject such paper the controller
operation.
Multibin Unit Specifications 12
EPSON EPL-N2050 Optional Units Revision B
1.2.4 Reliability, Dur ability, Serviceab i li ty
o MPBF 300,000 pages
o Printing Volume Maximum 25,000 pages/month
Average 5,000 pages/month
o Paper Feeding Reliability
o Jam Rate (Condition: 18-27°C/20-65%)
One-side Printing Duplex Printing
Standard Paper 1/5000 1/3333
o Durability 600,000 pages or 5 years, whichever comes
earlier.
o Serviceability MTTR: Within 30 minutes
1.2.5 Operating Conditions
Refer to Chapter 1 of the printer’s Service Manual.
1.2.6 Electrical Characteristics
1.2.8 External Dimension
mm
o Leak Current Maximum of 3.5mA (100V/115V)
Maximum of 3.5mA (220V/240V)
Refer to Chapter 1 of the printer’s Service Manual for other items.
1.2.7 Applicable Standards and Regulations
When connected to the printer;
o Safety Regulations (Laser Radiation)
None
Refer to Chapter 1 of the printer’s Service Manual for other items.
Figure 1-2. External Dimension
Multibin Unit Specifications 13
EPSON EPL-N2050 Optional Units Revision B
1.2.9 Operating Specification
1.2.9.1 How to Open Bins
1. Display is changed to user authentication mode when the Open button on
the Multibin Unit is pressed.
Display: Enter Password = XXXX
NOTE: When the Open button on the Multibin Unit is pressed, the
LED of the bin(s) for which password is disabled goes on. At
this time, this bin(s) can be opened. If there is no bin for which
password is enab led , Enter Password=XXXX is not displayed,
and Open Multibin Unit is displayed.
2. Enter password by pressing 4 switches, and all bins which matched the
password will open. The LED of the bin(s) that can be opened goes o n,
and Open Multibin Unit is displayed on the LCD.
If the entered password is incorrect, Password Error is displayed for two
seconds, and Enter Pasword=XXXX is once again displayed afterwards.
3. The bin(s) will be automatically locked 20 seconds after the Open button
is pressed. The Unit goes Off-Line when the Open button is pressed, and
for the next 20 seconds, no operation on the panel except for entering
password is possible.
1.2.9.2 Period in which the Multibin Unit can be opened
o Can be opened When the printer is in a status of lower priority
than XXX Error yyy.
o Cannot be opened During the printer is in SelecType mode, or
during printing.
NOTE: Bins can be opened when the Multibin Unit is not installed on
the printer (mechanical specification).
1.2.9.3 Display of Each Bin’s LED
o Paper Loaded: -
o Locked: Off
o Unlocked: On
o Full: Flash
The bin which is opened at that time will be locked immediately after it is
closed.
If no password is entered and 20 seconds passed after Enter
Password=XXXX is displayed, LCD display returns to the normal state.
NOTE: Bins can be opened during the following period:
20 seconds minus time required from the moment the Open
button is pressed until the password is authenticated.
From the moment the password is authenticated until the bin
will automatically locked, no operation on the panel is
possible.
Multibin Unit Specifications 14
EPSON EPL-N2050 Optional Units Revision B
1.3 Troubleshooting
1.3.1 If Paper Jam Occured Inside a Tray
1. Switch off the Multibin Unit and disconnect the power cable.
2. Remove the Unit from the printer.
3. Remove the housing parts (Cover Left, Cover Right, and Cover Top) by
releasing the screws.
4. Remove the Stopper Tray (L & R).
5. Unlock the corresponding Stopper Key by releasing the solenoid.
6. Draw out the corresponding tray and take out the jammed paper.
7. Reassemble and install the Unit.
CAUTION
This operation is for service personnel only.
Figure 1-3. Cover Left, Cover Right, Cover Top
Multibin Unit Troubleshooting 15
EPSON EPL-N2050 Optional Units Revision B
1.4 Disassembly and Assembly
This section contains the removal and assembly procedures for the Multibin Unit option.
1.4.1 Preparation
Before you begin any Removal and Assembly Procedure;
1. Switch OFF the main power.
2. If this manual instructs you to remove the Multibin Unit from the base
engine, place the Multibin Unit on a stable worktable.
3. Unless otherwise specified, position the Multibin Unit so the rear,
including the Low Chute and the P/J connector, hang over the edge of the
worktable.
4. Wear an electrostatic discharge wrist strap to protect sensitive Multibin
Unit parts from damage.
1.4.2 Notations in the Manual
o Arrows in an illustrat ion show direct ion of m ovement when r emoving
a component.
o Slas hes in a p art name indicate that n ume rous com ponents sha re the
same heading and function. For example, “Gears In/Feed/O ut” refers
to Gear In, Gear Feed, and Gear Out.
Multibin Unit Disassembly an d A s se mbly 16
EPSON EPL-N2050 Optional Units Revision B
1.4.3 Cover Left, Cover Top and Cover Right
1.4.3.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the screw (located at the rear of the Cover Left) that is securing
the Cover Left to the Multibin Unit.
3. Slide the Cover Left up, and remove it. (See “Cover Left, Cover Top and
Cover Right” on page 17)
4. Remove the screw (located at the rear of the Cover Right) that is securing
the Cover Right to the Multibin Unit.
5. Slide the Cover Right up, and remove it.
6. Remove the four screws that secure the Cover Top to the Multibin Unit.
7. Open the Chute Rear.
8. Open the Stopper Key Lock R, and push a screwdriver into a square hole
in the Stopper Key Lock R.
9. Press the Solenoid Assy Link to unlock the Multibin Unit Bins and pull out
the top Bin.
10. Release the two Cover Top latches (accessed through the open Bin), and
carefully lift the front of the Cover Top off of the Multibin Unit.
6. Use four screws to secure the Cover Top to the Multibin Unit.
7. Position the Cover Left at the top of the right side of the Multibin Unit.
8. Slide the Cover Left down, repositioning as necessary to clear the LCD
Panel at the front, and the AC receptacles at the rear.
9. Use one screw to secure the Cover Left to the Multibin Unit.
10. Position the Cover Right at the top of the left side of the Multibin Unit.
11. Slide the Cover Right down.
12. Use one screw to secure the Cover Right to the Multibin Unit.
13. Close the Chute Rear.
14. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
11. Remove the Cover Top. (See “C over Left, Cover Top and Cover Right” on
page 17)
1.4.3.2 Assembly
1. Remove the screwdriver wedging open Stopper Key Lock R and allow the
Lock to close.
2. Open the Chute Rear.
3. Position the rear of the Cover Top at the rear of the Multibin Unit.
4. Snap the rear into place first, the lower the Cover Top onto the Multibin
Unit.
5. Press down on the Cover Top until it snaps into place.
Multibin Unit Disassembly an d A s se mbly 17
Figure 1-4. Cover Left, Cover Top, Cover Right
EPSON EPL-N2050 Optional Units Revision B
1.4.4 Chute Rear and Chute Assy Lower
(with 7-10, 24)
1.4.4.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the Cover Left and Cover Right. (See “Cover Left, Cover Top and
Cover Right” on page 17)
3. Position the Multibin Unit so the rear of the Multibin Unit hangs over the
edge of the worktable.
4. Open the Chute Rear.
5. Remove the screw that is securing the Support Tape to the Chute Rear.
6. Remove two screws securing the Eliminator S to the Chute Assy Lower,
and remove the Eliminator S.
7. Remove two screws securing the Eliminator to the Chute Assy Lower,and
remove the Eliminator.
8. Close the Chute Rear.
9. Remove the two screws (one at each end of the Chute Assy Lower) that
are securing the Chute Assy Lower to the Multibin Unit.
6. Secure the Eliminator S to the Chute Assy Lower with two screws.
7. Use one screw to secure the Support Tape to the Chute Rear.
8. Close the Chute Rear.
9. Reinstall the Cover Left and Cover Right. (See “Cover Left, Cover Top and
Cover Right” on page 17)
10. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
10. Remove the Chute Assy Lower. (See “Chute Rear and Chute Assy Lower (with 7-10, 24)” on page 18)
11. Remove the Chute Rear.
1.4.4.2 Assembly
1. Reinstall the Chute Rear (See the illustration for correct positioning). (See
“Chute Rear and Chute Assy Lower (with 7-10, 24)” on page 18)
2. Reinstall the Chute Assy Lower (See the illustration for correct
positioning).
3. Use two screws to secure the Chute Assy Lower to the Multibin Unit.
4. Open the Chute Rear.
5. Secure the Eliminator to the C hute Assy Lower with two screws.
Multibin Unit Disassembly an d A s se mbly 18
Figure 1-5. Chute Rear and Chute Assy Lower
EPSON EPL-N2050 Optional Units Revision B
1.4.5 Sensor Pass INT
1.4.5.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Position the Multibin Unit so it is resting on the Chute Rear.
3. Disconnect J375 from the Sensor Pass INT.
4. Use a small, flat screwdriver blade to pry the upper part of the Sensor
Pass INT away from the Multibin Unit, and remove the Sensor.
1.4.5.2 Assembly
1. Position the Multibin Unit so it is resting on the Chute Rear.
2. Reinstall the lower part of the Sensor Pass INT (the bottom clip and the
sensor actuator arm) into the corresponding holes in the Multibin Unit.
3. Press the upper part of the Sensor against the Multibin Unit.
4. Use a small, flat screwdriver blade to press down on the upper clip so it
slips into the corresponding hole in the Multibin Unit.
5. Make sure the Sensor actuator moves freely and does not bind.
6. Reconnect J375.
7. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
Figure 1-6. Sensor Pass INT
Multibin Unit Disassembly an d A s se mbly 19
EPSON EPL-N2050 Optional Units Revision B
1.4.6 Tray Assy Multibin Unit 2 (with 36-38): Tray1-9 and
Tray Assy Multibin Unit 1 (with 37, 38, 42): Tray10
1.4.6.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the Left, Right, and Cover Tops.
3. Remove the two screws that are securing the Stopper Tray: Left to the
Multibin Unit frame.
4. Squeeze the latches at the top of the Stopper and remove the Stopper
Tray: Left from the frame.
5. Remove the two screws that are securing the Stopper Tray: Right to the
Multibin Unit frame.
6. Squeeze the latches at the top of the Stopper and remove the Stopper
Tray: right from the frame.
7. Remove the four screws that secure the Plate Assy Top to the Multibin
Unit.
8. Keep the Chute Rear closed during the remainder of this Removal
Procedure.
NOTE: With the Plate Assy Top removed, the ten Gates and ten Roll
Exits tend to slip out of place unless the Chute Rear is closed.
9. Press in on the Solenoid Assy R plunger to open the Stopper Key Lock R.
1.4.6.2 Assembly
1. Open the Chute Rear.
2. Slide the first Tray half-way into the lowest vacant slot in the Multibin
Unit.
3. Lift the Link Assy Paper L and Link Assy Paper R out of the way.
4. Slide the first Tray all the way into the slot, making sure the Sensor S tack
Full actuator does not hang up on the edge of the Tray.
5. Lower one Link Assy Paper L and one Link Assy Paper R onto the bed of
the reinstalled Tray.
6. Slide the next Tray all the way into the slot, making sure the Sensor Stack
Full actuator does not hang up on the edge of the Tray.
7. Lower one Link Assy Paper L and one Link Assy Paper R onto the bed of
the reinstalled Tray.
8. Repeat this process until all of the Trays are reinstalled in the Multibin
Unit.
9. Remove the screwdriver wedging open Stopper Key Lock R and allow the
Lock to close.
10. Reinstall the Plate Assy Top.
11. Use four screws to secure the Plate Assy Top to the Multibin Unit.
10. Use a screwdriver to wedge the Stopper Key Lock R open.
11. Starting with the top Solenoid Assy L, press in and hold the Solenoid
plunger as you slide out the top Multibin Unit tray.
12. Repeat step 10 until you have rem oved all, or the necessary, Multibin Unit
trays.
NOTE: Do not fully tighten the screws at this time.
12. Carefully examine the Gates and Roll Exits.
13. Replace any Gates or Roll Exits that may have been dislodged during Tray
removal or reinstallation.
14. Once all of the Gate and Roll Exits are in place, tighten the four screws
that secure the Plate Assy Top to the Multibin Unit.
15. Reinstall the Stopper Tray: right into the cutouts in the Multibin Unit
frame.
Multibin Unit Disassembly an d A s se mbly 20
EPSON EPL-N2050 Optional Units Revision B
16. Use two screws to secure the Stopper Tray: right.
17. Reinstall the Stopper Tray: left into the cutouts in the Multibin Unit frame.
18. Use two screws to secure the Stopper Tray: left.
19. Reinstall the Left, Right, and Cover Tops.
20. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
Figure 1-7. Tray Assy Multibin Unit 2 (with 36-38): Tray1-9 and
Tray Assy Multibin Unit 1 (with 37, 38, 42): Tray10
Multibin Unit Disassembly an d A s se mbly 21
EPSON EPL-N2050 Optional Units Revision B
1.4.7 Panel Assy, PWBA LED, and Switch Main
1.4.7.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
3. Remove the two screws that are securing the Panel Assy Indicator to the
Multibin Unit frame.
4. Disconnect J359 from the PWBA Main.
5. Disconnect the P/J that is attached to the Switch Main.
6. Remove the Panel Assy Indicator.
7. Remove the two screws that are securing the PWBA LED to the Panel
Assy Indicator, and remove the PWBA LED.
8. Disconnect J360 from the PWBA LED
9. Press in on the latches that secure the Switch Main to the Panel Assy
Indicator, and remove the Switch.
1.4.7.2 Assembly
8. Reinstall the Panel Assy Indicator onto the Multibin Unit frame, by first
sliding the tab that is located at the bottom of the Panel into the
corresponding hole in the Multibin Unit frame, then sliding the Panel into
position.
9. Use two screws to secure the Panel Assy Indicator to the Multibin Unit
frame.
10. Reinstall the Cover Left. (See “Cover Left, Cover Top and Cover R ight” on
page 17)
11. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
1. Reinstall the Switch Main into the opening in the Panel Assy Indicator.
Position the Switch Main so the O is at the bottom and the l is on the top.
2. Reinstall the Button into the opening in the Panel Assy Indicator.
3. Reconnect the PWBA LED Harness to J360 on the PWBA LED.
4. Reinstall the PWBA LED into the Panel Assy Indicator, making sure the
LEDs on the PWB fit into the square opening on the back of the Panel
Assy Indicator.
5. Use two screws to secure the PWBA LED to the Panel Assy Indicator.
6. Reconnect the four wire P/J to the Switch Main.
7. Reconnect J359 to the PWBA Main.
Figure 1-8. Panel Assy, PWBA LED, and Switch Main
Multibin Unit Disassembly an d A s se mbly 22
EPSON EPL-N2050 Optional Units Revision B
1.4.8 Frame Assy LVPS
1.4.8.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
3. Remove the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
4. Squeeze the tie wrap latch to release the tie wrap from the Multibin Unit
frame, and remove the tie wrap and harness from the frame.
5. Disconnect J350 from the PWBA LVPS.
6. Remove the four screws (1 through 4) that are securing the Frame Assy
LVPS to the Multibin Unit frame.
7. Remove ground wires T351 and T355 from the PWBA LVPS (secured by
screw 3).
8. Remove the screw that is securing ground wire T300 (item I) to the PWBA
LVPS and remove the wire.
NOTE: The screw that secures T300 to the PWBA LVPS is different
from the other screws on the PWBA LVPS. Do not substitute
screws.
9. Remove the screw that is securing ground wire T353 (item S) to the
PWBA LVPS and remove the wire.
1.4.8.2 Assembly
1. Reinstall the Frame Assy LVPS onto the Multibin Unit frame.
2. Reinstall ground wire T353 (item S) onto the PWBA LVPS and secure it
with one screw.
3. Reinstall ground wire T300 (item I) onto the PWBA LVPS and secure it
with one screw.
NOTE: The screw that secures T300 onto the PWBA LVPS is different
from the other screws on the PWBA LVPS. Do not substitute
screws.
4. Reinstall the ground wires T351 and T355 onto the PWBA LVPS at screw
hole 3, and secure them with one screw.
5. Use the other three screws to secure the PWBA LVPS to the Multibin Unit
frame.
6. Reconnect J350 to the PWBA LVPS.
7. Press the tie wrap, with the wire harness, into the hole in the Multibin
Unit frame.
8. Reinstall the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
9. Reinstall the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
10. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
10. Remove the Frame Assy LVPS from the Multibin Unit frame.
Multibin Unit Disassembly an d A s se mbly 23
EPSON EPL-N2050 Optional Units Revision B
Figure 1-9. Frame Assy LVPS
Multibin Unit Disassembly an d A s se mbly 24
EPSON EPL-N2050 Optional Units Revision B
1.4.9 PWBA Main
1.4.9.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
3. Remove the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
4. Remove the Frame Assy LVPS. (See “Frame Assy LVPS” on page 23)
5. Disconnect all of the P/Js that are attached to the PWBA Main.
P/Js 351, 352, 353, 354, 355, 356, 357, 358
6. Press in on the two latches that secure the left side of the PWBA Main to
the Multibin Unit frame, and pull free the left side of the PWB.
7. Slide the right side of the PWB out from under the two tabs that are
located on the right.
8. Remove the PWBA Main.
1.4.9.2 Assembly
7. Reinstall the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
8. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
1. Slide the right side of the PWBA Main under the two tabs that are located
on the right.
2. Position the two holes in the left side of the PWBA Main with the two
latches on the Multibin Unit frame.
3. Press the left side of the PWBA Main onto the tabs until the PWB snaps
into place.
4. Reconnect all of the P/Js that were attached to the PWBA Main.
P/Js 351, 352, 353, 354, 355, 356, 357, 358
5. Reinstall the Frame Assy LVPS. (See “Frame Assy LVPS” on page 23)
6. Reinstall the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
Figure 1-10. PWBA Main
Multibin Unit Disassembly an d A s se mbly 25
EPSON EPL-N2050 Optional Units Revision B
1.4.10 Solenoid Assy Link (with 23-25)
1.4.10.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
3. Remove the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
4. Remove the Frame Assy LVPS. (See “Frame Assy LVPS” on page 23)
5. Remove the PWBA Main. (See “PWBA Main” on page 25)
6. Remove the four screws that are securing the Solenoid Assy L to the
Multibin Unit frame.
NOTE: The top right screw also secures the ground wire T354 to the
Assembly.
NOTE: The bottom left screw also secures the ground wi re T358 to
the Assembly.
7. Pull the Solenoid Assy Link straight out, and remove it from the Multibin
Unit frame.
6. Reinstall the green ground wire T354 against the top right screw hole in
the Solenoid Assy Link.
7. Use one screw to secure the ground wire and the Assembly to the
Multibin Unit frame (item 1).
8. Reinstall the ground wire T358 against the bottom left screw hole in the
Solenoid Assy Link.
9. Use one screw to secure the ground wire and the Assembly to the
Multibin Unit frame (item 4).
10. Reinstall the PWBA Main. (See “PW BA Main” on page 25)
11. Reinstall the Frame Assy LVPS. (See “Frame Assy LVPS” on page 23)
12. Reinstall the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
13. Reinstall the Cover Left. (See “Cover Left, Cover Top and Cover R ight” on
page 17)
14. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
1.4.10.2 Assembly
1. Reinstall the Solenoid Assy Link onto the Multibin Unit frame.
2. Slide the plunger out of each of the ten solenoids.
3. Align each of the ten LInk Solenoids with the ten corresponding openings
in the Gates.
NOTE: If any one of the ten Links fails to line up with the
corresponding Gate opening, you will not be able to correct
seat the Solenoid Assy Link.
4. Press the Solenoid Assy Link against the Multibin Unit frame.
5. Use two screws to secure the Solenoid Assy Link to the Multibin Unit
frame.
Multibin Unit Disassembly an d A s se mbly 26
EPSON EPL-N2050 Optional Units Revision B
2
3
4
1
Figure 1-11. Solenoid Assy Link (with 23-25)
Multibin Unit Disassembly an d A s se mbly 27
EPSON EPL-N2050 Optional Units Revision B
1.4.11 Sensor Stack Full
1.4.11.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
3. Remove the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
4. Remove the Frame Assy LVPS. (See “Frame Assy LVPS” on page 23)
5. Remove the PWBA Main. (See “PWBA Main” on page 25)
6. Remove the Solenoid Assy Link.
7. Remove all of the Multibin Unit Trays necessary to access the Sensor
Stack Full that you want to remove.
8. Disconnect the P/J that is attached to the Sensor Stack Full you want to
remove.
9. Press in on the latches that secure the Sensor Stack Full to the Multibin
Unit frame and pull the Sensor Stack Full in the direction of the Multibin
Unit Trays.
10. Remove the Sensor Stack Full.
1.4.11.2 Assembly
3. Reconnect the P/J to the Sensor.
The P/Js are numbered:
P/J361 goes to Sensor Stack Full 1 (the top Sensor).
P/J362 goes to Sensor Stack Full 2.
P/J363 goes to Sensor Stack Full 3.
P/J364 goes to Sensor Stack Full 4.
P/J365 goes to Sensor Stack Full 5.
P/J366 goes to Sensor Stack Full 6.
P/J367 goes to Sensor Stack Full 7.
P/J368 goes to Sensor Stack Full 8.
P/J369 goes to Sensor Stack Full 9.
P/J370 goes to Sensor Stack Full 10 (the bottom Sensor).
4. Reinstall the Multibin Unit Trays.
5. Reinstall the Solenoid Assy Link.
6. Reinstall the PWBA Main. (See “PWBA Main” on page 25)
7. Reinstall the Frame Assy LVPS. (See “Frame Assy LVPS” on page 23)
8. Reinstall the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
9. Reinstall the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
1. Reinstall the Sensor Stack Full by sliding it from the Tray side, into the
correct Sensor slot. (See the illustration for correct positioning).
2. Press the two tabs and two latches located on the back of the Sensor
Stack Full, into the corresponding holes in the Sensor Stack Full slot.
The Sensor Stack Full snaps into place.
10. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
Multibin Unit Disassembly an d A s se mbly 28
EPSON EPL-N2050 Optional Units Revision B
Figure 1-12. Sensor Stack Full
Multibin Unit Disassembly an d A s se mbly 29
EPSON EPL-N2050 Optional Units Revision B
1.4.12 Stopper Key Lock L
1.4.12.1 Removal
1. Remove the Multibin Unit from the base engine. (See “Removal” on
page 10)
2. Remove the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
3. Remove the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
4. Remove the Frame Assy LVPS. (See “Frame Assy LVPS” on page 23)
5. Remove the PWBA Main. (See “PWBA Main” on page 25)
6. Remove the Solenoid Assy Link. (See “Solenoid Assy Link (with 23-25)”
on page 26)
7. Remove the two screws that are securing the Support Key Lock L to the
Multibin Unit frame, and remove the Support.
8. Remove a specific Stopper Key Lock L by lifting it from its slot.
1.4.12.2 Assembly
1. Reinstall the Stopper Key Lock L. (See the illustration for correct
positioning).
9. Reinstall the Multibin Unit onto the base engine. (See “Installation” on
page 10)
2. Reinstall the Support Key Lock L. (See the illustration for correct
positioning).
3. Use two screws to secure the Support Key Lock L.
4. Reinstall the Solenoid Assy Link. (See “Solenoid Assy Link (with 23-25)”
on page 26)
5. Reinstall the PWBA Main. (See “PWBA Main” on page 25)
6. Reinstall the Frame Assy LVPS. (See “Frame Assy LVPS” on page 23)
7. Reinstall the Panel Assy Indicator. (See “Panel Assy, PWBA LED, and
Switch Main” on page 22)
8. Reinstall the Cover Left. (See “Cover Left, Cover Top and Cover Right” on
page 17)
Figure 1-13. Stopper Key Lock L
Multibin Unit Disassembly an d A s se mbly 30
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