AcuLaser C1900
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®
SERVICE MANUAL
A4 Color Page Printer
EPSON AcuLaser C1900
AcuLaser C900
SEPG02003
Notice
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, 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 detected, SEIKO EPSON would greatly
appreciate being informed of them.
The contents of this manual are subject to change without notice.
The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their
respective owners. EPSON disclaims any and all rights in those marks.
Copyright © 2002 SEIKO EPSON CORPORATION.
Imaging & Information Product Division
TPCS Quality Assurance Department
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.
DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by
DANGER Headings.
WARNING Signals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.
DANGER
1. ALWAYS 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.
4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.
WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.
2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON
PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.
3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT
BOARDS AND/OR INDIVIDUAL CHIPS.
4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN
ACCESSING INTERNAL COMPONENTS.
5. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC OR
OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE
WARRANTY OFFERED BY EPSON.
About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer. The instructions and procedures included
herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.
Manual Configuration
This manual consists of six chapters and Appendix.
CHAPTER 1.PRODUCT DESCRIPTIONS
Provides a general overview and specifications of the product.
CHAPTER 2.OPERATING PRINCIPLES
Describes the theory of electrical and mechanical operations of
the product.
CHAPTER 3.TROUBLESHOOTING
Describes the step-by-step procedures for the troubleshooting.
CHAPTER 4.DISASSEMBLY / ASSEMBLY
Describes the step-by-step procedures for disassembling and
assembling the product.
CHAPTER 5.ADJUSTMENT
Provides Epson-approved methods for adjustment.
CHAPTER 6.MAINTENANCE
Provides preventive maintenance procedures and the lists of
Epson-approved lubricants and adhesives required for servicing
the product.
APPENDIX Provides the following additional information for reference:
• Connector pin assignments
• Electric circuit boards components layout
• Electrical circuit boards schematics
• Exploded diagram & Parts List
Symbols Used in this Manual
Various symbols are used throughout this manual either to provide additional
information on a specific topic or to warn of possible danger present during a
procedure or an action. Be aware of all symbols when they are used, and
always read NOTE, CAUTION, or WARNING messages.
A D J U S T M E N T
R E Q U I R E D
C A U T I O N
C H E C K
P O I N T
W A R N I N G
Indicates an operating or maintenance procedure, practice or
condition that is necessary to keep the product’s quality.
Indicates an operating or maintenance procedure, practice, or
condition that, if not strictly observed, could result in damage to,
or destruction of, equipment.
May indicate an operating or maintenance procedure, practice or
condition that is necessary to accomplish a task efficiently. It may
also provide additional information that is related to a specific
subject, or comment on the results achieved through a previous
action.
Indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, could result in injury or loss
of life.
Safety Precautions for Inspection and Service
When performing inspection and service procedures, observe the
following precautions to prevent accidents and ensure utmost safety.
* Depending on the model, some of the precautions given in the
following do not apply.
Different markings are used to denote specific meanings as detailed
below.
W A R N I N G
C A U T I O N
The following graphic symbols are used to give instructions that need to
be observed.
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may
also be used to alert against unsafe practices.
Used to call the service technician's attention to what is
graphically represented inside the marking (including a
warning).
Used to prohibit the service technician's from doing what is
graphically represented inside the marking.
Used to instruct the service technician's to do what is
graphically represented inside the marking.
W A R N I N G
WARNING
1.Always observe precautions.
Parts requiring special attention in this product will include a
label containing the mark shown on the left plus
precautionary notes. Be sure to observe the precautions.
Be sure to observe the “Safety Information” given in the
Operator's Manual.
2.Before starting the procedures, be sure to unplug the power
cord.
This product contains a high-voltage unit and a circuit with a
large current capacity that may cause an electric shock or
burn.
The product also contains parts that can jerk suddenly and
cause injury.
If this product uses a laser, laser beam leakage may cause
eye damage or blindness.
3.Use the specified parts.
For replacement parts, always use the genuine parts
specified in the manufacturer's parts manual. Installing a
wrong or unauthorized part could cause dielectric
breakdown, overload, or undermine safety devices resulting
in possible electric shock or fire.
Replace a blown electrical fuse or thermal fuse with its
corresponding genuine part specified in the manufacturer's
parts manual. Installing a fuse of a different make or rating
could lead to a possible fire. If a thermal fuse blows
frequently, the temperature control system may have a
problem and action must be taken to eliminate the cause of
the problem.
4.Handle the power cord with care and never use a multiple outlet.
9.Do not remodel the product.
Do not break, crush or otherwise damage the power cord.
Placing a heavy object on the power cord, or pulling or
bending it may damage it, resulting in a possible fire or
electric shock.
Do not use a multiple outlet to which any other appliance or
machine is connected.
Be sure the power outlet meets or exceeds the specified
capacity.
5.Be careful with the high-voltage parts.
A part marked with the symbol shown on the left carries a
high voltage. Touching it could result in an electric shock or
burn. Be sure to unplug the power cord before servicing this
part or the parts near it.
6.Do not work with wet hands.
Do not unplug or plug in the power cord, or perform any kind
of service or inspection with wet hands. Doing so could
result in an electric shock.
7.Do not touch a high-temperature part.
A part marked with the symbol shown on the left and other
parts such as the exposure lamp and fusing roller can be
very hot while the machine is energized. Touching them
may result in a burn.
Wait until these parts have cooled down before replacing
them or any surrounding parts.
Modifying this product in a manner not authorized by the
manufacturer may result in a fire or electric shock. If this
product uses a laser, laser beam leakage may cause eye
damage or blindness.
10.Restore all parts and harnesses to their original positions.
To promote safety and prevent product damage, make sure
the harnesses are returned to their original positions and
properly secured in their clamps and saddles in order to
avoid hot parts, high-voltage parts, sharp edges, or being
crushed.
To promote safety, make sure that all tubing and other
insulating materials are returned to their original positions.
Make sure that floating components mounted on the circuit
boards are at their correct distance and position off the
boards.
8.Maintain a grounded connection at all times.
(This item may not apply in the USA.)
Be sure to connect the ground wire to the ground terminal
even when performing an inspection or repair. Without
proper grounding, electrical leakage could result in an
electric shock or fire.
Never connect the ground wire to a gas pipe, water pipe,
telephone ground wire, or a lightning conductor.
C A U T I O N
CAUTION
1.Precautions for Service Jobs
A toothed washer and spring washer, if used originally,
must be reinstalled. Omitting them may result in contact
failure which could cause an electric shock or fire.
When reassembling parts, make sure that the correct
screws (size, type) are used in the correct places. Using the
wrong screw could lead to stripped threads, poorly secured
parts, poor insulating or grounding, and result in a
malfunction, electric shock or injury.
Take great care to avoid personal injury from possible burrs
and sharp edges on the parts, frames and chassis of the
product.
When moving the product or removing an option, use care
not to injure your back or allow your hands to be caught in
mechanisms.
2.Precautions for Servicing with Covers and Parts Removed
Wherever feasible, keep all parts and covers mounted when
energizing the product.
If energizing the product with a cover removed is absolutely
unavoidable, do not touch any exposed live parts and use
care not to allow your clothing to be caught in the moving
parts. Never leave a product in this condition unattended.
Never place disassembled parts or a container of liquid on
the product. Parts falling into, or the liquid spilling inside, the
mechanism could result in an electric shock or fire.
Never use a flammable spray near the product. This could
result in a fire.
Make sure the power cord is unplugged before removing or
installing circuit boards or plugging in or unplugging
connectors.
Always use the interlock switch actuating jig to actuate an
interlock switch when a cover is opened or removed. The
use of folded paper or some other object may damage the
interlock switch mechanism, possibly resulting in an electric
shock, injury or blindness.
3.Precautions for the Working Environment
The product must be placed on a flat, level surface that is
stable and secure.
Never place this product or its parts on an unsteady or tilting
workbench when servicing.
Provide good ventilation at regular intervals if a service job
must be done in a confined space for a long period of time.
Avoid dusty locations and places exposed to oil or steam.
Avoid working positions that may block the ventilation ports
of the product.
4.Precautions for Handling Batteries
(Lithium, Nickel-Cadmium, etc.)
Replace a rundown battery with the same type as specified
in the manufacturer's parts manual.
Before installing a new battery, make sure of the correct
polarity of the installation or the battery could burst.
Dispose of used batteries according to the local regulations.
Never dispose of them at the user's premises or attempt to
try to discharge one.
5.Precautions for the Laser Beam
(Only for Products Employing a Laser)
Removing the cover marked with the following caution label
could lead to possible exposure to the laser beam, resulting
in eye damage or blindness. Be sure to unplug the power
cord before removing this cover.
If removing this cover while the power is ON is unavoidable,
be sure to wear protective laser goggles that meet
specifications.
Make sure that no one enters the room when the machine is
in this condition.
When handling the laser unit, observe the “Precautions for
Handling Laser Equipment.”
Other Precautions
When handling circuit boards, observe the “HANDLING of PWBs”.
The PC Drum is a very delicate component. Observe the precautions
given in “HANDLING OF THE PC DRUM” because mishandling may
result in serious image problems.
Note that replacement of a circuit board may call for readjustments or
resetting of particular items, or software installation.
Precautions for Service
When performing inspection and service procedures, observe the
following precautions to prevent mishandling of the machine and its
parts.
All troubleshooting procedures contained herein assume that
there are no breaks in the harnesses and cords and all
connectors are plugged into the right positions.
The procedures preclude possible malfunctions due to noise
and other external causes.
* Depending on the model, some of the precautions given in the
following do not apply.
PRECAUTIONS BEFORE SERVICE
When the user is using a word processor or personal computer from
a wall outlet of the same line, take necessary steps to prevent the
circuit breaker from opening due to overloads.
Never disturb the LAN by breaking or making a network connection,
altering termination, installing or removing networking hardware or
software, or shutting down networked devices without the
knowledge and express permission of the network administrator or
the shop supervisor.
HOW TO USE THIS BOOK
DIS/REASSEMBLY, ADJUSTMENT
To reassemble the product, reverse the order of disassembly
unless otherwise specified.
TROUBLESHOOTING
PRECAUTIONS FOR SERVICE
Check the area surrounding the service site for any signs of
damage, wear or need of repair.
Keep all disassembled parts in good order and keep tools under
control so that none will be lost or damaged.
After completing a service job, perform a safety check. Make sure
that all parts, wiring and screws are returned to their original
positions.
Do not pull out the toner hopper while the toner bottle is turning.
This could result in a damaged motor or locking mechanism.
If the product is to be run with the front door open, make sure that
the toner hopper is in the locked position.
Do not use an air gun or vacuum cleaner for cleaning the ATDC
Sensor and other sensors, as they can cause electrostatic
destruction. Use a blower brush and cloth. If a unit containing these
sensors is to be cleaned, first remove the sensors from the unit.
If a component on a PWB or any other functional unit including a
motor is defective, the text only instructs you to replace the
whole PWB or functional unit and does not give troubleshooting
procedures applicable within the defective unit.
PRECAUTIONS FOR DISASSEMBLY/REASSEMBLY
PRECAUTIONS FOR CIRCUIT INSPECTION
Be sure to unplug the copier from the outlet before attempting to
service the copier.
The basic rule is not to operate the copier anytime during
disassembly. If it is absolutely necessary to run the copier with its
covers removed, use care not to allow your clothing to be caught in
revolving parts such as the timing belt and gears.
Before attempting to replace parts and unplug connectors, make
sure that the power cord of the copier has been unplugged from the
wall outlet.
Be sure to use the Interlock Switch Actuating Jig whenever it is
necessary to actuate the Interlock Switch with the covers left open
or removed.
While the product is energized, do not unplug or plug connectors
into the circuit boards or harnesses.
Never use flammable sprays near the copier.
A used battery should be disposed of according to the local
regulations and never be discarded casually or left unattended at
the user's premises.
When reassembling parts, make sure that the correct screws (size,
type) and toothed washer are used in the correct places.
Never create a closed circuit across connector pins except those
specified in the text and on the printed circuit.
When creating a closed circuit and measuring a voltage across
connector pins specified in the text, be sure to use the GND wire.
HANDLING OF PWBS
During Transportation/Storage:
During transportation or when in storage, new P.W. Boards must
not be indiscriminately removed from their protective conductive
bags.
Do not store or place P.W. Boards in a location exposed to
direct sunlight and high temperature.
When it becomes absolutely necessary to remove a Board from
its conductive bag or case, always place it on its conductive mat
in an area as free as possible from static electricity.
Do not touch the pins of the ICs with your bare hands.
Protect the PWBs from any external force so that they are not
bent or damaged.
During Inspection/Replacement:
If it becomes necessary to replace the thermal fuse or any other
fuse mounted on a board, be sure to use one of the rating marked
on the blown fuse. Always note the rating marked on the fuse, as
the rating and mounting site or number used are subject to change
without notice.
Avoid checking the IC directly with a multimeter; use connectors
on the Board.
Never create a closed circuit across IC pins with a metal tool.
Before unplugging connectors from the P.W. Boards, make sure
that the power cord has been unplugged from the outlet.
When removing a Board from its conductive bag or conductive
case, do not touch the pins of the ICs or the printed pattern.
Place it in position by holding only the edges of the Board.
When touching the PWB, wear a wrist strap and connect its cord
to a securely grounded place whenever possible. If you cannot
wear a wrist strap, touch a metal part to discharge static
electricity before touching the PWB.
HANDLING OF THE PC DRUM
* Only for Products Not Employing an Imaging Cartridge.
During Transportation/Storage:
Use the specified carton whenever moving or storing the PC
Drum.
Note that replacement of a PWB may call for readjustments or
resetting of particular items.
HANDLING OF OTHER PARTS
The magnet roller generates a strong magnetic field. Do not bring it
near a watch, floppy disk, magnetic card, or CRT tube.
The storage temperature is in the range between -20°C and
+40°C.
In summer, avoid leaving the PC Drum in a car for a long time.
Handling:
Ensure that the correct PC Drum is used.
Whenever the PC Drum has been removed from the copier,
store it in its carton or protect it with a Drum Cloth.
The PC Drum exhibits greatest light fatigue after being exposed
to strong light over an extended period of time. Never, therefore,
expose it to direct sunlight.
Use care not to contaminate the surface of the PC Drum with oil-
base solvent, fingerprints, and other foreign matter.
Do not scratch the surface of the PC Drum.
Do not apply chemicals to the surface of the PC Drum.
Do not attempt to wipe clean the surface of the PC Drum.
If, however, the surface is contaminated with fingerprints, clean it using
the following procedure.
1. Place the PC Drum into one half of its carton.
3. Soak a small amount of either ethyl alcohol
or isopropyl alcohol into a clean, unused
Dust-Free Cotton Pad which has been
folded over into quarters. Now, wipe the
surface of the PC Drum in one continuous
movement from its rear edge to its front
edge and off its surface one to two times.
2. Gently wipe the residual toner off the
surface of the PC Drum with a dry, DustFree Cotton Pad.
A.Turn the PC Drum so that the area of its
surface on which the line of toner left by the
Cleaning Blade is present is facing straight
up. Wipe the surface in one continuous
movement from the rear edge of the PC
Drum to the front edge and off the surface
of the PC Drum.
B. Turn the PC Drum slightly and wipe the
newly exposed surface area with a CLEAN
face of the Dust-Free Cotton Pad. Repeat
this procedure until the entire surface of the
PC Drum has been thoroughly cleaned.
*At this time, always use a CLEAN face of the dry
Dust-Free Cotton Pad until no toner is evident on
the face of the Pad after wiping.
*Never move the Pad back and forth.
4. Using the SAME face of the Pad, repeat the
procedure explained in the latter half of
step 3 until the entire surface of the PC
Drum has been wiped. Always OVERLAP
the areas when wiping. Two complete turns
of the PC Drum would be appropriate for
cleaning.
NOTE:
Even when the PC Drum is only locally dirtied, wipe the entire
surface.
Do not expose the PC Drum to direct sunlight. Clean it as
quickly as possible even under interior illumination.
If dirt remains after cleaning, repeat the entire procedure from
the beginning one more time.
HANDLING OF THE IMAGING CARTRIDGE
* Only for Products Employing an Imaging Cartridge.
During Transportation/Storage:
The storage temperature is in the range between -20°C and
+40°C.
In summer, avoid leaving the Imaging Cartridge in a car for a
long time.
Handling:
Store the Imaging Cartridge in a place that is not exposed to
direct sunlight.
Precautionary Information on the PC Drum Inside the Imaging
Cartridge:
Use care not to contaminate the surface of the PC Drum with oil-
base solvent, fingerprints, and other foreign matter.
Do not scratch the surface of the PC Drum.
Do not attempt to wipe clean the surface of the PC Drum.
W A R N I N G
WARNING
Do not throw the toner cartridge or toner into an open
flame. The hot toner may scatter and cause burns or
other damage.
SAFETY INFORMATION
LASER SAFETY
This is a digital machine certified as a class 1 laser product. There is no
possibility of danger from a laser, provided the machine is serviced
according to the instruction in this manual.
INTERNAL LASER RADIATION
semiconductor laser
Maximum average radiation power(*) 4.68 µW
Wavelength 770-795 nm
*:Laser Aperture of the Print Head Unit
This product employs a Class 3b laser diode that emits an invisible
laser beam. The laser diode and the scanning polygon mirror are
incorporated in the print head unit.
The print head unit is NOT A FIELD SERVICE ITEM. Therefore, the
print head unit should not be opened under any circumstances.
the U.S.A., Canada (CDRH Regulation)
This machine is certified as a Class I Laser product under
Radiation Performance Standard according to the Food, Drug
and Cosmetic Act of 1990. Compliance is mandatory for Laser
products marketed in the United States and is reported to the
Center for Devices and Radiological Health (CDRH) of the U.S.
Food and Drug Administration of the U.S. Department of Health
and Human Services (DHHS). This means that the device does
not produce hazardous laser radiation.
The label shown to page 15 indicates compliance with the
CDRH regulations and must be attached to laser products
marketed in the United States.
CAUTION
Use of controls, adjustments or performance of procedures other than those
specified in this manual may result in hazardous radiation exposure.
semiconductor laser
Maximum power of the laser diode 5 mW
Wavelength 770-795 nm
Laser Aperture of the Print Head Unit
All Areas
CAUTION
Use of controls, adjustments or performance of procedures other than those
specified in this manual may result in hazardous radiation exposure.
semiconductor laser
Maximum power of the laser diode 5 mW
Wavelength 770-795 nm
Denmark
Finland, Sweden
ADVARSEL
Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling. Klasse 1 laser produkt der opfylder IEC60825
sikkerheds kravene.
halvlederlaser
Laserdiodens højeste styrke 5 mW
bølgelængden 770-795 nm
Norway
ADVERSEL
Dersom apparatet brukes på annen måte enn spesifisert i denne
bruksanvisning, kan brukeren utsettes för unsynlig laserstrålning, som
overskrider grensen for laser klass 1.
halvleder laser
Maksimal effekt till laserdiode 5 mW
bølgelengde 770-795 nm
LUOKAN 1 LASERLAITE
KLASS 1 LASER APPARAT
VAROITUS!
Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla
saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle
lasersäteilylle.
puolijohdelaser
Laserdiodin suurin teho 5 mW
aallonpituus 770-795 nm
VARNING!
Om apparaten används på annat sätt än i denna bruksanvisning
specificerats, kan användaren utsättas för osynlig laserstrålning, som
överskrider gränsen för laserklass 1.
halvledarlaser
Den maximala effekten för laserdioden 5 mW
våglängden 770-795 nm
VARO!
Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättomälle
lasersäteilylle. Älä katso säteeseen.
VARNING!
Osynlig laserstråining när denna del är öppnad och spärren är urkopplad.
Betrakta ej stråien.
LASER SAFETY LABEL
PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT
A laser safety label is attached to the outside of the machine as shown
below.
LASER CAUTION LABEL
A laser caution label is attached to the inside of the machine as shown
below.
When laser protective goggles are to be used, select ones with a
lens conforming to the above specifications.
When a disassembly job needs to be performed in the laser beam
path, such as when working around the printerhead and PC Drum,
be sure first to turn the printer OFF.
If the job requires that the printer be left ON, take off your watch and
ring and wear laser protective goggles.
A highly reflective tool can be dangerous if it is brought into the laser
beam path. Use utmost care when handling tools on the user's
premises.
Revision Status
Revision Date of Issue Description
0 June 3, 2002 Partial release (Chapter 1/ Chapter4) (provisional)
A September 30, 2002 First release
EPSON AcuLaser C1900/AcuLaser C900 Revision A
Contents
Chapter 1 Product Description
1.1 Product Description............................................................................................. 22
1.1.1 Features....................................................................................................... 22
1.2 Basic Specifications............................................................................................. 24
1.2.1 Process Specifications ................................................................................ 24
1.2.2 Printer Basic Specifications........................................................................ 24
1.2.3 Paper Specifications.................................................................................... 30
1.2.3.1 Paper type ............................................................................................ 30
1.2.3.2 Paper Feeding ...................................................................................... 31
1.2.3.3 Printing Area ....................................................................................... 31
1.2.4 Reliability and Maintainability ................................................................... 32
1.2.4.1 Reliability ............................................................................................ 32
1.2.4.2 Durability............................................................................................. 33
1.2.4.3 Maintenance ........................................................................................ 33
1.2.5 Operating Conditions (Including Consumables) ........................................ 33
1.2.6 Storage and Transport Environments of the Packaged Printer Main Unit and
Optional Products ...................................................................................... 35
1.2.7 Electrical Feature........................................................................................ 35
1.2.8 Compatible Standard .................................................................................. 36
1.2.9 Consumable / Regular Replacement Component Specifications ............... 37
1.2.9.1 Specifications ...................................................................................... 37
1.2.9.2 Storage and Transport Environments for Packages ............................ 38
1.2.9.3 Lives of Components........................................................................... 39
1.3 Controller Unit Specifications............................................................................. 41
1.3.1 Controller Basic Specifications .................................................................. 41
1.3.2 Differences in Jumper Settings between Designated Markets ................... 42
1.3.3 External I/F Specifications ......................................................................... 42
1.3.3.1 Parallel Interface Specifications.......................................................... 43
1.3.3.2 USB Interface Specifications .............................................................. 44
1.3.3.3 Ethernet Interface Specifications (AcuLaser C1900).......................... 45
1.3.3.4 Type B Interface Specifications .......................................................... 46
1.4 Control Panel....................................................................................................... 47
1.4.1 External Appearance and Names of Parts .................................................. 47
1.4.2 List of Panel Settings (Only with AcuLaser C1900).................................. 49
1.4.3 Explanation of Each Setting Menu and Items
(Only with AcuLaser C1900) .................................................................... 56
1.4.4 Special Operations (Only with AcuLaser C1900)...................................... 58
1.4.5 Printer Setting Items (Only with AcuLaser C900) ..................................... 59
1.4.5.1 Setting Items stored on the Printer Side .............................................. 59
1.4.5.2 Setting Items which are Valid only in the Job and are not
Stored in Printer................................................................................... 60
1.4.5.3 Setting Items Requiring Control by the Printer for
Each Printing or Status Change ........................................................... 62
1.4.5.4 Settings controlled by the mechanical controller, but requiring reading out
and changing the values....................................................................... 64
1.4.5.5 Settings specified regardless of Job and not stored in the printer ....... 65
1.4.6 Special Setting Operation (Only with AcuLaser C900) ............................. 66
1.4.7 Printer Status Checking .............................................................................. 69
1.4.7.1 Status sheet.......................................................................................... 69
1.4.8 Reserve Job List (Only for AcuLaser C1900)............................................ 72
1.4.9 Form Overlay List (Only for AcuLaser C1900)......................................... 72
1.4.10 Network Status Sheet (Only for AcuLaser C1900) .................................. 73
1.4.11 Engine Status Sheet .................................................................................. 75
1.5 RAM Expansion.................................................................................................. 79
1.6 Handling Precautions .......................................................................................... 80
1.6.1 Caution when there is a Power Failure....................................................... 80
1.6.2 Caution Regarding High Temperature Parts .............................................. 80
1.7 Network Environment (Only for AcuLaser C900).............................................. 81
1.8 Host Requirements (Only for AcuLaser C900)................................................... 82
1.9 AIDC Control...................................................................................................... 82
1.10 External Appearance and Parts Name............................................................... 83
1.10.1 Overall Dimensions .................................................................................. 83
1.10.2 Names of Parts.......................................................................................... 84
1.11 Differences in Specifications............................................................................. 85
1.11.1 Differences between AcuLaser C1900 and AcuLaser C2000.................. 85
1.11.2 Differences between AcuLaser C900 and AcuLaser C1000.................... 86
18
EPSON AcuLaser C1900/AcuLaser C900 Revision A
Chapter 2 Operating Principles
2.1 Mechanism Overview.......................................................................................... 88
2.1.1 Locations of Electric Parts.......................................................................... 89
2.2 Operation Sequence............................................................................................. 92
2.3 Image Stabilization Control................................................................................. 93
2.3.1 Execution Conditions for Image Stabilization Control (Only for AcuLaser
C900) ......................................................................................................... 95
2.3.2 Engine Restrictions..................................................................................... 96
2.4 Description of Mechanisms................................................................................. 97
2.4.1 Paper Path ................................................................................................... 97
2.4.2 Photoconductor Unit................................................................................... 98
2.4.2.1 OPC Drum........................................................................................... 98
2.4.2.2 Charging Process................................................................................. 99
2.4.3 Exposure Process...................................................................................... 100
2.4.4 Development Process................................................................................ 101
2.4.4.1 Toner Cartridge Rack ........................................................................ 101
2.4.4.2 Development Position ....................................................................... 102
2.4.4.3 Toner Cartridge ................................................................................. 103
2.4.5 Transfer Process........................................................................................ 105
2.4.5.1 Transfer Belt Unit.............................................................................. 105
2.4.5.2 Secondary Transfer Roller Cleaning ................................................. 106
2.4.5.3 Transfer Belt Cleaner Mechanism..................................................... 107
2.4.5.4 Waste Toner Box............................................................................... 108
2.4.5.5 Waste Toner Box Detection .............................................................. 108
2.4.6 Fusing Process .......................................................................................... 109
2.4.6.1 Fuser Unit.......................................................................................... 109
2.4.7 Fusing Temperature Control..................................................................... 110
2.4.8 Paper Feed Mechanism............................................................................. 112
2.4.8.1 MP Tray............................................................................................. 112
2.4.8.2 500-sheet Cassette Unit (Option) ...................................................... 113
2.4.9 Other Mechanisms.................................................................................... 114
2.4.9.1 Duplex Unit (option) ......................................................................... 114
2.5 Controller Board Operating Principles.............................................................. 117
Chapter 3 Troubleshooting
3.1 Overview ........................................................................................................... 122
3.2 Status Display (AcuLaser C1900)..................................................................... 123
3.2.1 Service Call Error Status .......................................................................... 123
3.2.1.1 Details of Service Call Errors and Remedy ...................................... 124
3.2.2 Printer Status............................................................................................. 130
3.2.3 Details of Status Messages and Treatment Method.................................. 132
3.2.4 Details of Error Status and Remedy ......................................................... 134
3.2.5 Details of Warning Status and Remedy.................................................... 139
3.3 Status Display (AcuLaser C900)....................................................................... 142
3.3.1 Service Call Error Status .......................................................................... 142
3.3.1.1 Details of Service Call Errors and Remedy ...................................... 144
3.3.2 Printer Status............................................................................................. 150
3.3.3 Details of Status Messages and Treatment Method.................................. 151
3.3.4 Details of Error Status and Remedy ......................................................... 152
3.3.5 Details of Warning Status and Remedy.................................................... 155
3.4 Check Points and Remedy for Paper Jam ......................................................... 158
3.4.1 Initial Checking ........................................................................................ 158
3.4.2 Locations of Jam Detection Sensors......................................................... 158
3.4.3 Jam Detection Timing / Action to be Taken............................................. 159
3.4.4 Checking Method for Electric Parts ......................................................... 161
3.5 Details of Print Quality Trouble and Remedy................................................... 163
Chapter 4 Disassembly and Assembly
4.1 Overview ........................................................................................................... 166
4.1.1 Precautions................................................................................................ 166
4.1.2 Tools ......................................................................................................... 168
4.1.3 Screws....................................................................................................... 168
4.2 Main Unit Disassembly..................................................................................... 169
4.2.1 Before Disassembling the Printer ............................................................. 171
4.2.1.1 Toner Cartridge Removal.................................................................. 171
4.2.1.2 Removal of Other Units .................................................................... 172
4.3 Periodical Replacement Parts Removal ............................................................ 174
4.3.1 Secondary Transfer Roller........................................................................ 174
4.3.2 Fuser Unit ................................................................................................. 174
4.4 Cover Removal.................................................................................................. 176
4.4.1 Upper Front Cover.................................................................................... 176
4.4.2 Top Cover................................................................................................. 176
4.4.3 Front Door ................................................................................................ 177
4.4.4 Rear Cover................................................................................................ 177
4.4.5 Upper Rear Cover..................................................................................... 177
4.4.6 Left Cover................................................................................................. 178
19
EPSON AcuLaser C1900/AcuLaser C900 Revision A
4.4.7 Front Cover............................................................................................... 178
4.4.8 Right Door ................................................................................................ 179
4.5 Printer Main Parts Disassembly and Assembly................................................. 182
4.5.1 Main Board (C485MAIN/C494MAIN).................................................... 182
4.5.2 Engine Board (PWB-A)............................................................................ 183
4.5.3 Exhaust Fan Motor (M6) .......................................................................... 184
4.5.4 Power Supply Fan Motor (M4)................................................................. 184
4.5.5 Power Supply Unit (PU)........................................................................... 185
4.5.6 AIDC Sensor............................................................................................. 186
4.5.7 High Voltage Unit (HV) ........................................................................... 187
4.5.8 Cleaner Pressure Flapper Solenoid (SL4)................................................. 188
4.5.9 Rack Motor (M2)...................................................................................... 189
4.5.10 Main Motor Ass’y................................................................................... 190
4.5.11 Multi Purpose Tray................................................................................. 191
4.5.12 Paper Empty Sensor................................................................................ 192
4.5.13 Fuser Unit Removal................................................................................ 193
4.5.14 Fusing Cooling Fan Motor (M5) ............................................................ 195
4.5.15 Paper Load Roller................................................................................... 196
4.5.16 Separation Roller .................................................................................... 196
4.5.17 Printer Head Unit (PH) ........................................................................... 197
4.5.18 Manual Paper Feed Solenoid (SL1)........................................................ 199
4.5.19 Fuser Deceleration Drive Assy............................................................... 200
4.5.20 Rack ........................................................................................................ 201
4.6 Extension Unit Disassembly and Assembly...................................................... 203
4.6.1 The 2nd Paper Load Roller....................................................................... 203
4.6.2 500-sheet Cassette Unit Control Board (PWB-A).................................... 204
4.7 Duplex Unit Disassembly and Assembly.......................................................... 205
4.7.1 Duplex Unit Control Board (PWB-A)...................................................... 205
4.7.2 Paper Feed Sensor..................................................................................... 205
4.7.3 Reverse Motor / Transfer Motor............................................................... 206
5.3.1 Overview .................................................................................................. 211
5.3.1.1 Operating Environment ..................................................................... 211
5.3.1.2 Conditions for Use ............................................................................ 211
5.3.2 How to Use the Service Utility................................................................. 212
5.3.2.1 Starting the Service Utility ................................................................ 212
5.3.2.2 Functions ........................................................................................... 214
5.3.3 Operation .................................................................................................. 214
5.3.3.1 Engine Status Sheet........................................................................... 214
5.3.3.2 Reset Counter .................................................................................... 214
5.3.3.3 USB ID.............................................................................................. 215
Chapter 6 Maintenance
6.1 Maintenance ...................................................................................................... 217
6.1.1 Consumables and Regular Replacement Parts ......................................... 217
6.1.2 Cleaning.................................................................................................... 217
Chapter 7 Appendix
7.1 Schematic Wiring Diagram............................................................................... 219
7.2 Connectors and Jumpers on Circuit Boards ...................................................... 220
7.3 ASP List ............................................................................................................ 248
7.4 Circuit Diagram................................................................................................. 258
Chapter 5 Adjustment
5.1 Overview ........................................................................................................... 208
5.2 USB ID Input..................................................................................................... 209
5.2.1 Installation Procedure for Program........................................................... 209
5.2.2 Procedure for Program Operation............................................................. 209
5.2.3 USB ID Confirmation............................................................................... 210
5.3 Service Utility (AcuLaser C900)....................................................................... 211
20
PRODUCT DESCRIPTION
CHAPTER
1
EPSON AcuLaser C1900/AcuLaser C900 Revision A
1.1 Product Description
AcuLaser C1900/AcuLaser C900 are non-impact color page printer that takes
advantage of the laser and electrophotographic technology.
1.1.1 Features
ENGINE FEATURES
True 600 dpi high resolution full color printing engine. (AcuLaser C900)
New, low-price color engine supporting A4-size paper (AcuLaser C1900)
4.0 ppm (A4 color) /16.0 ppm (A4 monochrome) print speed.
Duplex printing supported (A4/LT).
Compact and light weight, with body size about 70%, weight about 65%, and foot
print about 85% of AcuLaser C2000
Resolution
AcuLaser C1900 : 600dpi
AcuLaser C900 : 600dpi / 300dpi
Paper feed
Table 1-1. Paper feed
Postcards,
Model Standard paper feed
AcuLaser
C1900
AcuLaser
C900
MP Tray (200 sheets) -
MP tray (200 sheets) MP tray (50 sheets)
Transparencies, Thick
Paper, or Labels
A maximum of 200 sheets can be output face-down.
Optional (Lower Cassette Unit)
Paper Source (500 sheets)
An optional paper cassette unit
(500 sheet, A4/LT only)
option
1.5 K pre-installed toner
1.5 K toner for each color included with package
4.5 K toner for Optional use
CONTROLLER FEATURES
<AcuLaser C1900>
New RISC CPU: PowerPC 300 MHz (SPC603ei)
RAM: Standard 32MB
Expandable up to a maximum of 1GB
SDRAM DIMM supporting standard PC100 and PC133 (32, 64, 128, 256, or
512 MB) can be used. For memory expansion of 544 MB or more, the standard
32 MB DIMM must be replaced.
Color technologies
AcuLaser Color Halftoning installed
Three types of standard interfaces installed
10/100baseTx Ethernet
IEEE1284 parallel interface (Compatibility, Nibble, ECP)
USB 1.1 (2.0 FS 12Mbps Certified)
NOTE:
Support for optional Type-B interface
RAM expansion can increase the performance and speed of the AcuLaser Color
Halftoning drawing area, print speed, resolution, receive buffer size, and collated
printing (Collate in Printer).
HDD (optional) can be installed
New HDD that is also used by AcuLaser C8600 is supported.
(The old type of HDD cannot be used)
Improved color stability brought by new AIDC control Color stability matching or
exceeding AcuLaser C1000 is targeted.
Low noise level (target)
Sleep Mode : 39dB (A)
While printing : 54dB (A)
Use of newly developed polymerized toner, making oil-less fixing possible
Product Description Product Description 22
EPSON AcuLaser C1900/AcuLaser C900 Revision A
<AcuLaser C900>
Host based controller
CPU: VR4305-48MHz
Standard RAM: 16 MB,
with additional RAM DIMM expanding to a maximum of 144 MB
Color technologies
CPGI, CRIT (Color RIT) installed
Two types of standard interfaces installed
IEEE1284 compatible parallel interface supporting ECP
USB I/F
SOFTWARE FEATURE
<AcuLaser C1900>
Emulation included as standard
ESC/Page Color mode
LJ4, GL2, ESC/P2, FX, I239X, ESC/Page (monochrome mode)
Optional emulation
Adobe PostScript 3
<AcuLaser C900>
ESC/PageS installed
Color supported
Duplex printing supported
Network compatibility
Use of background job commands establish network connections.
Ability to update the firmware
Supply of program on Flash DIMM makes update of firmware possible
(no MASK during mass production).
Figure 1-1. External Appearance
Ability to update the engine controller program.
This function is only supported for the evaluation sample.
DCC command support.
Diag command only.
Product Description Product Description 23
EPSON AcuLaser C1900/AcuLaser C900 Revision A
1.2 Basic Specifications
1.2.1 Process Specifications
Printer formula
Semi-conductor laser beam scan and elector photography with dry single
component no electromagnetic toner.
Light Source
Semi-conductor laser
Photoconductor Unit
OPC (organic photoconductive conductor) drum
Charging
Needle electrode scorotron charger
Development
Exposed area development
Toner
Nonmagnetic one-component toner
Primary Transfer
Electrode roller transfer method
Intermediate Transfer
Intermediate transfer belt method
1.2.2 Printer Basic Specifications
Resolution
600 dpi
Warming Up Time
100 V, 120 V : 180 seconds or less (in 23 °C 55%RH, rated voltage)
220~240 V : 180 seconds or less (in 23 °C 55%RH, rated voltage)
Printing Mode
B/W mode : A regular monochrome mode that prints fastest.
Color mode : A color mode that uses Y, M, C, K toners.
Speed Mode
Standard mode : Paper feeding at the main unit's fastest speed.
Low-speed <1> mode : Reduce the envelope feeding speed to retain the
quality.
Low-speed <2> mode : Reduces paper feeding speed to ensure satisfactory
fusing at printing on thick paper, label sheets or
coated paper exceeding 90g/m
Low-speed <3> mode : Reduce the paper feeding speed to retain the fixity of
printing on transparencies.
2
(24 lb).
Secondary Transfer
Roller transfer method
Fixing
Heated roller fuser method
Density Adjustment
Automatic adjustment (not adjustable by user)
Product Description Basic Specifications 24
EPSON AcuLaser C1900/AcuLaser C900 Revision A
First Printing Time
*1
B/W mode
Table 1-2. First Printing Time (Unit: seconds max.)
Printing mode
\
Paper size
A4 14.0 23.0 28.0 25.0
A5 14.0 23.0 - -
B5 14.0 23.0 - -
Letter 14.0 23.0 28.0 25.0
Japanese official postcard - 22.0 - -
Japanese official returned
postcard
Standard
mode
- 23.0 - -
Simplex printing
Low-speed
<2> mode
Low-speed
<3> mode
Duplex
printing
Standard
mode
Color mode
Table 1-3. First Printing Time (Unit: seconds max.)
Printing mode
\
Paper size
A4 25.0 34.0 40.0 39.0
A5 25.0 34.0 - -
B5 25.0 34.0 - -
Letter 25.0 34.0 40.0 39.0
Japanese official postcard - 33.0 - -
Japanese official returned
postcard
Standard
mode
- 34.0 - -
Simplex printing
Low-speed
<2> mode
Low-speed
<3> mode
Duplex
printing
Standard
mode
Continuous Printing Speed
B/W mode
Table 1-4. Continuous Printing Speed (Unit: ppm)
*2
*2
Printing mode
\
Paper size
A4 16.0 - 3.3 2.5 10.0
A5 16.0 - 3.5 - -
B5 16.0 - 3.4 - -
Letter 16.0 - 3.3 2.5 10.0
Japanese official postcard - - 3.6 - -
Japanese official returned
postcard
Envelope C6 Yokei #6
/MON/DL
Envelope Yokei #0
/Yokei #4
User defined
148 mm ≤ L<210 mm
User defined
210 mm ≤ L ≤ 297 mm
User defined
297 mm <L ≤ 356 mm
Note *: JIS envelope
NOTE 1:
*
C5/Com-#10
L: Paper length
2:
Paper width is between 92 mm and 216 mm
Standard
mode
- - 3.5 - -
*
-4.1 - - -
- 4.0 - - -
- - 3.5 - -
16.0 - 3.3 - -
8.0----
Simplex printing
Low-speed
<1> mode
Low-speed
<2> mode
Low-speed
<3> mode
Duplex
printing
Standard
mode
Note *1: The above values are periods from when the printer receives the start command to
when it completes ejecting the first sheet.
*2: The above periods are the same in all the paper feed bins.
Product Description Basic Specifications 25
EPSON AcuLaser C1900/AcuLaser C900 Revision A
Color mode
Table 1-5. Continuous Printing Speed (Unit: ppm)
Printing mode
\
Paper size
A4 4.0 - 2.0 1.6 4.0
A5 4.0 - 2.0 - -
B5 4.0 - 2.0 - -
Letter 4.0 - 2.0 1.6 4.0
Japanese official postcard - - 2.1 - -
Japanese Official both-way
postcard
Envelope C6 - 2.3 - - -
Envelope MON/C5/Com#10/DL Yokei #0*/Yokei #4*
Yokei #6
User defined
148 mm
User defined
210 mm ≤ L ≤ 297 mm
User defined
297 mm < L ≤ 356 mm 2.0
*
≤ L<210 mm
Standard
mode
- - 2.0 - -
- 2.2 - - -
- - 2.0 - -
4.0 - 2.0 - -
2.0 - - - -
Simplex printing
Low-speed
<1> mode
Low-speed
<2> mode
Low-speed
<3> mode
Duplex
printing
Standard
mode
Paper Feed Reference
Centerline reference for each paper size, and for both the MP tray and optional
cassette unit (option).
Paper Feed
Table 1-6. Paper Feed
Paper source
Standard MP tray 200 sheets
Optional Optional
500sheets
cassette unit
Note *: JIS envelope
Capacity
(Height)
(23mmMax)
50 sheets Transparency: A4, Letter 50 sheets Label: A4, Letter -
50 sheets
50 sheets Label: A4, Letter -
10 sheets
50 sheets
500 sheets
(57mmMax)
Paper size for paper feed
A4,A5,B5,Letter,GLT,HLT,Exective Plain paper
Thick paper:
A4,A5,B5,Letter,GLT,HLT,Exective
Envelope:
C5, C6, Com-10, DL, Monarch,
Yokei #0
Postcard (for domestic models):
Japanese official postcard,
Japanese official returned postcard
A4 or Letter
(fixed on the factory default) 60 ~ 90 g/m
*
,Yokei #4 *,Yokei #6
*
Applicable
paper type
60 ~ 90 g/m
91 ~ 163 g/m
-
190 g/m
2
2
2
2
Note *: JIS envelope
NOTE 1:
L: Paper length
2:
Paper width is between 92 mm and 216 mm
Product Description Basic Specifications 26
EPSON AcuLaser C1900/AcuLaser C900 Revision A
Applicable Paper Sizes, Paper Types, and Paper Orientation
Table 1-7. Applicable Paper Sizes, Paper Types, and Paper Orientation
Paper size Unit mm
Paper Size
Vertical
(length)
(inch)
Horizontal
(width)
A4 297.00 210.00 {{ {SEF
A5 210.00 148.00 { - - SEF
B5 257.00 182.00 { --SEF
Letter 279.40
(11.00)
Half Letter 215.90
Plain paper
(8.50)
EXECUTIVE 266.70
(10.50)
G.Letter 266.70
(10.50)
215.90
(8.50)
139.70
(5.50)
184.15
(7.25)
203.20
(8.00)
MP
tray
Optional*1
cassette
unit
Duplex
print
unit
Paper
Orientation
{ { { SEF
{ --SEF
{ - - SEF
{ --SEF
Table 1-7. Applicable Paper Sizes, Paper Types, and Paper Orientation (continued)
Paper size Unit mm
Paper Size
Japanese official
postcard
*4
Japanese official
returned postcard
*4
148.00 100.00
200.00 148.00
Transparency A4:297.00
LT:279.40
Label A4:297.00
LT:279.40
MONARCH 190.5
(7 1/2)
Com-10 241.30
Special applications
*2
DL 220.00 110.00 { - - SEF
(9 1/2)
Vertical
(length)
(inch)
Horizontal
(width)
A4: 210.00
LT:215.90
A4: 210.00
LT:215.90
98.43
(3 7/8)
104.78
(4 1/8)
C5 229.00 162.00 { --SEF
Envelope
C6 162.00 114.00 { - - SEF
Yokei #0 *5235.00 120.00 { --SEF
Yokei #4 *5235.00 105.00 { - - SEF
Yokei #6 *5190.00 98.00 { --SEF
MP
tray
Optional*1
cassette
unit
Duplex
print
unit
Paper
Orientation
{ - - SEF
{ --SEF
{ - - SEF
{ --SEF
{ - - SEF
{ --SEF
*3
*3
*3
*3
*3
*3
*3
*3
Note *1: The dedicated cassette for A4 only or Letter only (by factory default).
*2: The supported envelope sizes differ depending on destination.
*3: Refer to “Envelope Orientation” (p.28) for details on feeding direction of envelopes.
*4: Curls must be straightened.
*5: JIS envelope.
NOTE 1:
SEF (Short Edge Feed): The short edge of the paper is fed to the printer.
2:
“-”: Not supported.
Product Description Basic Specifications 27
EPSON AcuLaser C1900/AcuLaser C900 Revision A
Envelope Orientation
Optional 500-sheet cassette unit
Paper size: Fixed on A4 or Letter
Feeding
direction
→
Paper thickness: 60 g/m
Output Paper Capacity
Face-down (FD) tray only 200 sheets
2
~ 90 g/m
2
Dimensions and Weights
Table 1-8. Outline Dimensions and Weight
Envelope types
Note *: JIS envelope.
NOTE 1:
Envelopes must be loaded facing the printing side up with the flaps heading
MONARCH, DL Com-#10, C6
Yokei #0*, Yokei #4* Yokei #6
*
C5
forward or backward to the paper feed direction.
2:
Opened flaps must be closed.
3:
Printing on the backside (where a flap seal is being sealed) is not possible.
4:
Only envelopes without adhesive or adhesive tapes can be used.
Paper Sizes for Feeding
Regular paper sizes or user defined paper sizes within applicable paper sizes below.
Main unit
Paper width: 92.00 mm ~ 216.00 mm
Paper length: 148.00 mm
Paper thickness: 60 g/m
*1
~ 356.00 mm
2
~ 163 g/m2 (190 g/m2: Japanese official postcard)
Note *1: 148.00 mm ~ 356.00 mm in low-speed <2> mode only and
210.00 mm ~ 356.00 mm in standard mode
Duplex print unit
Paper size: A4, Letter
Paper thickness: 60 g/m
NOTE:
Only regular sizes are supported, while user defined paper size
cannot be used.
2
~ 90 g/m
2
Stand-alone
Options
Installed
Note *1: This value includes the height of the right-side paper path.
*2: This value includes the weight of the consumables, controller circuit board and
Note : Dimensions have a tolerance of ±5mm and weights have a tolerance of ±0.5kg.
Consumables
Developer cartridge (Black, Cyan, Yellow, Magenta)
Photoconductor unit
Transfer belt unit
Waste toner collector
Regular Replacement Parts
Fuser unit
Second transfer roll
Power Supply
Paper source Width Depth Height Weight
Main unit 429 mm 521 mm 406 mm 29 kg
Optional cassette unit 380 mm 485 mm 178 mm 5.3 kg
Duplex print unit 96 mm 340 mm 330 mm 2.0 kg
Main unit+
Optional cassette unit
Main unit + Duplex print unit 473 mm 521 mm 406 mm 31.0 kg
operation panel.
100 V
± 10% : 50Hz
120 V ± 10% : 50Hz
220 ~ 240 V ± 10% : 50Hz
469 mm 521 mm 526 mm 34.3 kg
±3Hz
±3Hz
±3Hz
/ 60 Hz
/ 60 Hz
/ 60 Hz
±3Hz
±3Hz
±3Hz
*2
Product Description Basic Specifications 28
EPSON AcuLaser C1900/AcuLaser C900 Revision A
Power supply to the controller
5.0 V
± 5%, 2 A or less
3.3 V
± 5%, 5 A or less
Power Consumption
<AcuLaser C1900>
Table 1-9. Power Consumption (AcuLaser C1900)
100 V 120 V 230 V
Maximum current rated 100 V:13 A or less 11 A or less 7 A or less
Maximum 1100 W 1100 W 1100 W
Average at continuous
printing in B/W
Average at continuous
printing in color
Average during standby
with heating ON
Average during sleep mode
Power Consumption
with heater OFF
Powered off mode 0Wh 0Wh 0Wh
- 372 Wh 352 Wh
- 247 Wh 241 Wh
- 108 Wh 107 Wh
30 W or less 15 W or less 12 W or less
<AcuLaser C900>
Table 1-10. Power Consumption (AcuLaser C900)
100 V 120 V 230 V
Maximum current rated 100 V:13 A or less 11 A or less 7 A or less
Maximum 1100 W 1100 W 1100 W
Average at continuous
printing in B/W
Average at continuous
printing in color
Average during standby
with heating ON
Average during sleep mode
Power Consumption
with heater OFF
Powered off mode 0Wh 0Wh 0Wh
352Wh 351 Wh 352 Wh
253Wh 243 Wh 243 Wh
108Wh 111 Wh 100 Wh
10 W or less 11 W or less 8 W or less
Product Lifetime
Main unit : 200 k pages printed or five years, whichever
comes first
Optional cassette unit : 200 k pages printed or five years, whichever
comes first
Duplex print unit : 200 k pages printed or five years, whichever
comes first
Noise
Table 1-11. Noise
In printing In standby
Main unit Color mode 54 dB(A) or less
B/W mode 54 dB(A) or less
When full-options are installed
Note *: The noise with all options installed is the value actually measured.
*
54 dB(A) or less 39 dB(A) or less
39 dB(A) or less
Exhaust Gas
Ozone concentration : 0.02m g/m
(New Blue Angel standard compliance)
Styrene concentration : 0.07m g/m
(New Blue Angel standard compliance)
Dust concentration : 0.150m g/m
(New Blue Angel standard compliance)
Nitrogen dioxide : 5 ppm or less
Carbon monoxide : 30 ppm or less
3
or less
3
or less
3
or less
Hazardous Materials
None of the Photoconductor (OPC), toners, or plastic contains is hazardous
material.
NOTE: Note: For the standards, refer to “1.2.8 Compatible Standard (p. 36)”.
Current Consumed (Rating)
Table 1-12. Current Consumed
5V 24V
Optional 500-sheet Cassette Unit 0.2A 1A
Duplex Unit 0.1A 0.4A
Product Description Basic Specifications 29
EPSON AcuLaser C1900/AcuLaser C900 Revision A
1.2.3 Paper Specifications
Paper that Causes Printing Defects, Paper Jams or Printer
Malfunctions if Used
• Copy papers (carbon papers, non-carbon papers), thermal papers,
impact papers, acid-based papers
• Papers that are too thin or too thick
• Papers that are wet or damp
• Papers with special coatings or paper for color printers with processed
surfaces
• Papers that are too smooth (slick and slippery) or too rough on its
surfaces
• Papers with significantly different roughness on each surface of front
and back side
• Papers with punch holes for binders or perforations
• Creased, curled or torn paper
• Irregularly shaped paper or paper with non-perpendicular corners
• Labels that peel off easily
• Papers with glue, staples or paper clips attached to it
• Special applications for ink jet papers
(super-fine, glossy paper or film, etc.)
• Papers that were previously used in a thermal or ink jet printer
• Transparencies for other color/monochrome laser printers or
photocopiers
• Sheets already printed on other color / monochrome laser printers or
photocopiers
• Sheets of paper stuck together
• 4-page jointed postcard, and Japanese official postcard, nonofficial
postcard, sealed postcard for ink jet printers
• Iron print coated paper (for both inkjet and laser printers)
• Sheets deteriorate or discolor by at 180
°
C or cooler
1.2.3.1 Paper type
Standard Paper
Domestic:
FX P paper (B/W), EPSON high-quality plain paper (A4/LT)
Overseas:
4024 paper (20 lb) (B/W), EPSON high-quality plain paper (A4/LT)
Plain paper
2
60 g/m
Generally applied copy paper, recycled paper
Special Applications
EPSON Dedicated transparency sheet (A4/LT)
EPSON dedicated coated paper (A4)
Japanese official postcard (for domestic models)
Japanese official returned postcard (for domestic models) with no crease
Label
Thick paper (91 g/m
Envelope
NOTE 1:
~ 90 g/m2 (16 lb ~ 24 lb)
2
~ 163 g/m2)
lb: Ream weight = lb / 500 sheets / 17” × 22”
2
g/m
: 1 g/m2 = 0.2659763 lb
2:
When purchasing bulk paper, be sure to check that the paper can be properly
fed beforehand.
C A U T I O N
C H E C K
P O I N T
When “Kamo mail” Japanese official postcards or illustrated
postcards are used, paper feed roller may be soiled with paper
dust, causing difficulties in feeding these postcards properly. In
this case cleaning is required following the “6.1.2 Cleaning”
(p.217).
Product Description Basic Specifications 30
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