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Ecosys Printer Service Manual
FS-1550 Series/FS-3400 Series
Version 1.22
FS-1550 series/FS-3400 series Com- residential installation. This equipment
bined Service Manual generates, uses, and can radiate radio
©1994--1996 Kyocera Corporation. frequency energy and, if not installed
All rights reserved. and used in accordance with the in-
Revision 1.01 (Sept./94), Replaced structions, may cause harmful interfer-
pages: 5-5--5-30 ence to radio communication. However,
Revision 1.2 (Feb./95) there is no guarantee that interference
Revision 1.21 (Oct./95), Replaced will not occur in a particular installation.
pages: 3-5--3-8 If this equipment does cause harmful in-
Revision 1.22 (Mar/96), Replaced terference to radio or television recep-
pages: (Combined with Plus series) All tion, which can be determined by turning
part catalog pages. the equipment off and on, the user is
encouraged to try to correct the interfer-
ence by one or more of the following
NOTICE measures:
Reorient or relocate the receiving an-
The information in this manual is subject tenna.
to change without notification. Additional
pages may be inserted in future editions. Increase the separation between the
The user is asked to excuse any techni- equipment and receiver.
cal inaccuracies or typographical errors Connect the equipment into an outlet on
in the present edition. a circuit different from that to which the
No responsibility is assumed if accidents receiver is connected.
occur while the user is following the in- Consult the dealer or an experienced ra-
structions in this manual. No responsi- dio/TV technician for help.
bility is assumed for defects in the Change or modifications not expressly
printer's firmware. approved by the manufacturer for com-
The contents of this manual are pro- pliance could void the user's authority to
tected by copyright. No part of this man- operate the equipment.
ual may be reproduced or copied by any Interference cable to the computer shall
means without the permission of the be used with shielded circular cable.
copyright holder. The printer's firmware
(contents of its read-only memory) is
similarly protected by copyright. WARNING
This equipment has been certified to
TRADEMARK NOTICES comply with the limits for a Class B
PRESCRIBE is a registered trademark of computing device, pursuant to Subpart J
KYOCERA CORPORATION. PRESCRIBE of Part 15 of FCC Rules. Only peripher-
II, KIR, Kyocera Image Refinement, Eco- als (computer input/output devices, ter-
sys, and Ecotone are trademarks of minals, etc.) certified to comply with the
KYOCERA CORPORATION. Class B limits may be attached to this
equipment. Operation with non-certified
Diablo 630 is a product of Xerox Corpo- peripherals is likely to result in interfer-
ration. IBM Proprinter X-24E is a prod- ence to radio and TV reception.
uct of International Business Machine
Corporation. Epson LQ-850 is a product Check that the cable is wired correctly. If
of Seiko Epson Corporation. HP LaserJet an IBM communication adapter cable
III and HP-7475A are product of type 1502067 is used, it will have to be
Hewlett-Packard Company. Hewlett resoldered the wiring at the printer end
-Packard, PCL, and HP-GL are regis- of the cable. The procedure is as fol-
tered trademarks of Hewlett-Packard lows.
Company. Centronics is a trade name of
Centronics Data Computer Corp.
This Kyocera printer uses PeerlessPrint5
to provide the HP LaserJet III compatible
PCL5 language emulation. Peer-
lessPrint5 is a trademark of the Peerless
Group, Redondo Beach, CA 90278,
U.S.A.
FCC NOTICE
This equipment has been tested and
found to comply with the limits for a
Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are
designed to provide reasonable protec-
tion against harmful interference in a
ii
P R E F A C E
INTERFACE CABLES
Either of the following interface cables meets the FCC requirements:
Parallel interface: IBM Printer cable type 1525612
Serial interface: IBM communication adapter cable type 1502067
Resoldering an IBM Cable
1 Unscrew the plastic cover from the printer end of the cable.
2 Next to each of the wires inside the cable is a bare shield wire. Solder
all these shield wires together into a single bundle.
3 Using a section of flat wire about 3mm wide and 15mm long, connect
the bundle of shield wires to the metal facing of the connector. Check
that the solder connectors are secure.
4 Desolder wires 2 and 3, then resolder them in crossed configuration:
Solder wire 2 to pin 3 and wire 3 to pin 2. Cover the solder joints with
thermofit tube.
5 Cut wires 4, 5, 6, and 20.
6 Solder wires 5 and 6 together and connect them to pin 20. Cover the
solder joints with thermofit tube.
7 Tape all remaining loose ends, or seal them with thermofit tube.
8 Screw the plastic cover back on.
iii
P R E F A C E
SAFETY INFORMATION
On battery replacement
Danger of explosion if battery is incorrectly replaced. Replace only with the same
or equivalent type recommended by the equipment manufacturer. Discard used
batteries according to manufacturer's instructions.
Important notice to service person
Before attempting service on the printer, including disassembling, re-assembling,
troubleshooting, and adjustment, read this manual carefully. During performing
service, use extreme care to avoid possible electric shock hazard, burn, and hu-
man injuries. Make sure the printer is not provided with any safety facilities
other than those primarily intended for the safety of users.
PREFACE
This manual contains information for providing service and maintenance for the
following Kyocera printer models:
FS-1550/FS-1550A/FS-1550+ and FS-3400/FS-3400A/FS-3400+.
Both 1550 and 3400 series feature the 300-dpi printing resolution; series 1550 is
the 10-ppm version and series 3400 is the 18-ppm version. Models version A are
destined for US/Canada. Models version + provide compliance to Simple Net-
work Management Protocol. This manual is a combined version of service infor-
mation for all above models. (Detailed information are available in Introduction
section of the combined Ecosys Plus series User's Manual supplied with the
printer.) Unless otherwise specified, descriptions apply to all of these models.
The manual is comprised of the following chapters:
Chapter 1 GENERAL INFORMATION: Includes precautions on servicing, re-
quirements for selection of paper, maintenance, schedule (toner supply), jigs and
tools required for servicing (of all previous line-up of Kyocera printers), printer
specifications, etc.
Chapter 2 OPERATION OVERVIEW: Explains the theory of printer operation
--electrophotography and hardware sections--in detail.
Chapter 3 CONTROLLER OVERVIEW: Provides details on the functions of the
main logic controller. Facts about the printer firmware can be referred to in the
related PROGRAMMING MANUAL (available separately).
Chapter 4 KIR SYSTEM: Provides the operation theory for Kyocera Image Re-
finement system. For additional reading.
Chapter 5 DISASSEMBLY: Provides procedures for removing and installing com-
ponents.
Chapter 6 TROUBLESHOOTING: Describes how to respond to the troubles
arisen with the printer using a plenty of easy-to-follow flowcharts.
Appendix A ENGINE TIMING CHARTS
iv
P R E F A C E
Appendix B PARTS CATALOGS: Includes lists of parts and exploded views of
the component used with the printer. The ordering instruction is also provided.
Appendix C SCHEMATIC DIAGRAMS
Legend
Throughout the chapters, Warning denotes the precaution which, if ignored,
could result in personal injury, and/or irrevocable damage to the printer. Note
denotes precautions which, if ignored, could result in damage to the printer.
v
C O N T E N T S
1.1. General, 1-3
1.2. Precautions on Service and Maintenance, 1-4
1.2.1. General Precautions, 1-4
1.2.2. Notes on Power Source, 1-4
1.2.3. Static, 1-4
1.2.4. Replacement Parts, 1-5
1
1.2.5. Notes on Handling the Drum Unit, 1-5
1.2.6. Toner, 1-5
1.2.7. Removing the Printer, 1-5
1.2.8. Storage, 1-6
1.3. Paper, 1-7
1.3.1. Paper Availability, 1-7
1.3.2. Selecting the Right Paper, 1-8
1.3.3. Special Paper, 1-11
1.4. Maintenance Schedule, 1-15
1.4.1. Supplying Toner, 1-15
1.5. Jigs and Tools, 1-16
1.6. Product information, 1-18
1.6.1. General, 1-18
1.6.2. Printer Features, 1-18
1.6.3. Printer Specifications, 1-21
G E N E R A L I N F O R M A T I O N
This page is intentionally left blank.
1-2
G E N E R A L I N F O R M A T I O N
1.1. General
The Kyocera page printer combines the long life print drum, developer, and the
fuser unit. Its engine has been designed to last longer than any other page
printer.
It's a self-reliant, versatile machine with considerable native intelligence. Using
its own microprocessor and memory, the printer tests itself and in general, looks
after itself with a minimum of help. In case of internal trouble which the user's
maintenance activity should be limited, the printer tells the need for attention on
its display whether it is caused of mechanism (E codes) or controller electronics
error (F codes). Corrective actions that should be taken against these messages
are explained in Chapter 6 Troubleshooting.
1-3
G E N E R A L I N F O R M A T I O N
1.2. Precautions on Service and Maintenance
Observe the precautions which follow before and during service and maintenance
to prevent personal injury to the technician and damage to the printer.
1.2.1. General Precautions
Only a qualified technician should perform the service on the printer, who is fa-
miliar with fundamental safety countermeasures as dictated for electronics tech-
nicians.
1.2.2. Notes on Power Source
a Use only the power source voltage conforming to the printer's rated power volt-
age. Do not use other power sources.
a Disconnect the printer from the power source before attempting removal or re-
placement of an electrical component or a printed-circuit board.
a The printer should not be connected to a power source until the instruction is
given to do so when performing tests described in this manual.
a In connecting the printer power, exercise an extreme care in handling the power
supply or any other electric parts which may give an electric shock.
a Before performing maintenance or repair, power from both the power source and
the associated peripheral devices (computer, sorter, etc.) should be disconnected,
unless otherwise specified.
a To avoid possible electrical shock, extreme caution must be exercised in handling
the power cord and any other electrical part.
1.2.3. Static
Use antistatic (discharging) tools, e.g., an antistatic wrist belt, when handling
printed-circuit boards to discharge the human body.
1.2.4. Replacement Parts
Replace the components with only the manufacturer's recommended components.
Use of non-recommended parts will void the printer's warranty.
1-4
G E N E R A L I N F O R M A T I O N
1.2.5. Notes on Handling the Drum Unit
a Avoid impact on the drum unit.
a To avoid scratching the drum, keep it away from hard object.
a Do not touch the surface of the drum cartridge. When the drum gets dirty, wipe
it with a cloth slightly soaked in isopropyl alcohol.
1.2.6. Toner
Caution: The Ecosys printer needs the special toner that contains drum clean-
ing substances in order that the optimum print quality and machine
life are assured. We recommend using only proprietary Kyocera Mi-
crofine Ceramic Toner (TK-12).
a Shake the toner container well (in the horizontal direction) before use.
a The toner container should be stored in areas of low temperature and humidity.
On how to add toner in the developer, refer to the printer's USER MANUAL.
1.2.7. Removing the Printer
Observe the following precautions in removal and transportation of the printer.
a When removing the printer, remove the trays and the developer unit from the
printer. To remove the developer unit, see Chapter 5 Disassembly.
a Be sure to repack the printer in its original carton. The repacking procedure is
printed on the carton.
a Do not leave the printer, toner container, and other printer components inside a
vehicle if the outdoor temperature is more than 25° C or 77° F. As an unexpect-
edly high temperature may develop inside when a vehicle is parked for a long pe-
riod of time, the drum, toner, and the supplies should be removed from the vehi-
cle. The vehicle during transportation should be parked in the shade or with the
windows open to allow minimum air circulation or the adequate air conditioning
should be made.
a Should the printer be left in a vehicle, it may not be exposed to a temperature
change of greater than 7°C or 44° F within 30 minutes.
a Before removing the printer to a warm place, wrap it in a blanket, etc., before
crating it. Allow approximately two to three hours after having moved after un-
crated. Failure to observe the above may result in moisture condensation which
will affect the performance of the printer.
1-5
G E N E R A L I N F O R M A T I O N
1.2.8. Storage
The printer, drum unit, toner container, and other modules should be stored
keeping the following in mind:
a Store the printer in the original carton.
a Do not stack more than six cartons. Do not stand the carton upside-down or side-
ways.
a Ship the earlier carton first.
a Store the printer in cool, dark, and low humidity area.
a Avoid areas where excessive dust may develop.
a Avoid areas where ammonia or organic gas may develop.
1-6
G E N E R A L I N F O R M A T I O N
1.3. Paper
The page printer is designed to print on high-quality copier bond paper (the kind
used in ordinary dry copier machines), but it can accept a variety of other types
of paper as well within the limits specified below.
Note: Kyocera assume no liability for problems that occur when paper not
satisfying these requirements is used with the printer.
Selection of the right paper is important. The wrong paper can result in jams,
misfeeds, curl, poor print quality, and paper waste, and in extreme cases can
damage the printer. The guidelines given below will increase the productivity of
your office by ensuring efficient, trouble-free printing and reducing wear on the
printer.
1.3.1. Paper Availability
Most types of paper are compatible with a variety of machines. Paper intended
for xerographic copiers and small offset duplicators can also be used with the
printer.
There are three general grades of paper: economy , standard , and premium . The
most significant difference between grades is the ease with which they pass
through the printer. This is affected by the smoothness, size, and moisture con-
tent of the paper, and the way in which the paper is cut. The higher the grade of
paper you use, the less risk there will be of paper jam and other problems, and
the higher the level of quality your printed output will reflect.
Differences between paper from different suppliers can also affect the printer's
performance. A high-quality printer cannot produce high-quality results when
the wrong paper is used. Low-priced paper is not economical in the long run if it
causes printing problems.
Paper in each grade is available in a range of basis weights (defined later). The
traditional standard weights are 16, 20, and 24 pounds.
1-7
G E N E R A L I N F O R M A T I O N
The following table summarizes the basic paper specifications. Details are given
on the following pages.
Table 1.1. Paper availability
Item Specification
2
Weight 60 to 90 g/m (16 to 24 lbs/ream)
Thickness 0.086 to 0.110 mm (3.4 to 4.3 mils)
Dimensional accuracy ± 0.7 mm (± 0.0276 inches)
Squareness of corners 90 ± 0.2°
Moisture content 4 to 6%
Direction of grain Long grain
Pulp content 80% or more
1.3.2. Selecting the Right Paper
Printing with the page printer is a process involving LED light, electrostatic dis-
charge, toner, and heat. In addition, as the paper passes through the printer it
undergoes considerable sliding, bending, and twisting motions. A high-quality
printing paper matching the printer's requirements with-stands all these
stresses, enabling the printer to turn out clean, crisp printed copy consistently.
Remember that all paper is not the same. Some of the factors to consider when
selecting paper for the printer are as follows:
Condition of the paper
Avoid using paper that is bent at the edges, curled, dirty, torn, or contaminated
with lint, clay, or paper shreds.
Use of paper in these conditions can lead to illegible printing, misfeeding, and pa-
per jams, and can shorten the life of the printer. In particular, avoid using paper
with a surface coating or other surface treatment. The paper should have as
smooth and even a surface as possible.
Composition
Do not use paper that has been coated or surface-treated and contains plastic or
carbon. The heat of fusing can cause such paper to give off harmful fumes.
Bond paper should contain at least 80% pulp. Not more than 20% of the total pa-
per content should consist of cotton or other fibers.
1-8
G E N E R A L I N F O R M A T I O N
Paper size
The printer accepts the paper sizes listed below for automatic feed. The dimen-
sional tolerances are ± 0.7 mm (± 0.0276 inches) for the length and width. The
angle at the corners must be 90 ± 0.2° .
Table 1.2. Paper size
Size Cassette
Letter 8.5 × 11 inches
Legal 8.5 × 14 inches (The optional
paper cassette must be used.)
JIS A4 21 × 29.7 cm
JIS B5 18.2 × 25.7 cm
JIS A5 14.8 × 21 cm
Other sizes of paper can be fed manually. The minimum size of manually fed pa-
per is 8 × 14.8 cm (3.1 × 5.8 inches), fed lengthwise. The maximum size is 21.6 ×
35.6 cm (8.5 × 14 inches).
The printer recognizes paper sizes as commanded by the front panel MODE SE-
LECT , but regards all manually fed paper as having the Legal size.
Smoothness
The paper should have a smooth, uncoated surface.
Paper with a rough or sandy surface can cause voids in the printed output. Paper
that is too smooth, however, can cause multiple feeding and fogging problems.
(Fogging is a gray background effect.)
Basis weight
Basis weight is the weight of a standard quantity of paper. In the traditional sys-
tem the standard quantity is a ream consisting of 500 sheets measuring 17 × 22
inches each. In the metric system the standard quantity is 1 square meter.
Paper that is too light or too heavy can cause misfeeding, jams, multiple feeds,
print defects, poor toner fusing, blurring, and other print quality problems. The
proper weight is: 60 to 90 g/m2 (16 to 24 lbs/ream).
Thickness (Caliper)
Thick paper is referred to as high-caliper paper and thin paper as low-caliper pa-
per. The paper used with the printer should be neither extremely thick nor ex-
1-9
G E N E R A L I N F O R M A T I O N
tremely thin. If you are having problems with paper jams, multiple feeds, and
faint printing, the paper may be too thin. If you are having problems with paper
jams and blurred printing the paper may be too thick. The proper thickness is:
0.086 to 0.110 mm (3.4 to 4.3 mils).
Moisture content
Moisture content is defined as the percent ratio of moisture to the dry mass of
the paper. Moisture can affect the paper's appearance, feedability, curl, electro-
static properties, and toner fusing characteristics.
The moisture content of the paper varies with the relative humidity in the room.
When the relative humidity is high and the paper absorbs moisture, the paper
edges expand, becoming wavy in appearance. When the relative humidity is low
and the paper loses moisture, the edges shrink and tighten, and print contrast
may suffer.
Wavy or tight edges can cause misfeeding and alignment anomalies. The mois-
ture content of the paper should be: 4% to 6%.
To ensure the proper moisture content it is important to store the paper in a
controlled environment. Some tips on moisture control are:
a Store paper in a cool, dry location.
a Keep the paper in its wrapping as long as possible. Rewrap paper that is not in
use.
a Store paper in its original carton. Place a pallet etc. under the carton to separate
it from the floor.
a After removing paper from storage, let it stand in the same room as the printer
for 48 hours before use.
a Avoid leaving paper where it is exposed to heat, sunlight, or damp.
Paper grain
When paper is manufactured, it is cut into sheets with the grain running parallel
to the length (long grain) or parallel to the width (short grain). Short grain paper
can cause feeding problems in the printer. All paper used in the printer should
be long grain. Direction of grain should be long .
Other paper properties
Porosity: Refers to the density of the paper structure; that is, to how openly or
compactly the fibers are bonded.
Stiffness: Limp paper can buckle inside the printer, while paper that is too stiff
may bind. Either way the result is a paper jam.
Curl: Most paper has a natural tendency to curl in one direction. The paper
should be loaded so that the natural curl is downward, to counteract the upward
curl imparted by the printer. Printed sheets will then come out flat. Most paper
1-10
G E N E R A L I N F O R M A T I O N
also has a top and bottom surface. Loading instructions are usually given on the
paper package.
Electrostatic properties: During the printing process the paper is electrostatically
charged to attract the toner. The paper must be able to release this charge so
that printed sheets do not cling together in the output tray.
Whiteness: The contrast of the printed page depends on the whiteness of the pa-
per. Whiter paper provides a sharper, brighter appearance.
Quality control: Uneven sheet size, corners that are not square, ragged edges,
welded (uncut) sheets, and crushed edges and corners can cause the printer to
malfunction in various ways. A quality paper supplier should take considerable
care to ensure that these problems do not occur.
Packaging: Paper should be packed in a sturdy carton to protect it from damage
during transport. Quality paper obtained from a reputable supplier is usually
properly packaged.
1.3.3. Special Paper
The following types of special paper can be used:
a Recycled paper
a Overhead projection (OHP) film
a Adhesive-backed label paper
a Envelopes
a Colored paper
a Preprinted paper
Use paper that is sold specifically for use with copiers or page printers (heat-fus-
ing type). OHP film, label paper, and envelopes should not be placed in the cas-
sette; they must be fed manually1 and stacked face up.
1 The option envelope feeder EF-1/UF-1 allows the printer to automatic feed envelopes.
1-11
G E N E R A L I N F O R M A T I O N
Since the composition and quality of special paper vary considerably, special pa-
per is more likely than white bond paper to give trouble during printing. No li-
ability will be assumed if moisture etc. given off in printing on special paper
causes harm to the machine or operator.
Note: Before purchasing any type of special paper, test a sample on the
printer and check that printing quality is satisfactory.
Specifications for each type of special paper are given below.
Recycled paper
Select recycled paper that meets the same specifications as the white bond paper
except whiteness.
Overhead Projection (OHP) Film
OHP film must be able to withstand the heat of fusing during the printing proc-
ess. It should satisfy the conditions provided below.
Table 1.3. Overhead projection film specifications
Item Specification
Tolerance of heat Must tolerate at least 190° C (374° F)
Thickness 0.100 to 0.110 mm (3.9 to 4.3 mils)
Dimensional accuracy ± 0.7 mm (± 0.0276 in)
Squareness of corners 90 ± 0.2°
To avoid trouble, OHP film must be delivered face-down.
If OHP film jams frequently, pull the top of the sheet very gently as it leaves the
printer.
Adhesive-Backed Labels
The basic rule for printing on adhesive labels is that the adhesive must never
come into contact with any part of the printer. Adhesive paper sticking to the
drum or rollers will damage the printer.
Label paper must be manually fed.
Label paper has a structure consisting of three layers, as shown in Figure 1.1. be-
low. The top sheet is printed on. The adhesive layer consists of pressure-sensitive
adhesives. The carrier sheet (also called the linear or backing sheet) holds the la-
bels until use. Due to the complexity of its composition, adhesive-backed label pa-
per is particularly likely to give trouble in printing.
1-12
G E N E R A L I N F O R M A T I O N
Adhesive label paper must be en-
Figure 1.1. Adhesive-backed Label
tirely covered by its top sheet, with
no spaces between the individual la-
Top sheet (white bond paper)
bels. Labels with spaces in between
are apt to peel off, causing serious Adhesive
jam problems. See Figure 1.2. be-
low. Carrier sheet
Figure 1.2. Label Arrangement
Acceptable Unacceptable Top sheet
Top sheet
Carrier sheet
Some label paper is manufactured with an extra margin of top sheet around the
edge. Do not remove the extra top sheet from the carrier sheet until after print-
ing is finished.
The table below lists the specifications for adhesive label paper.
Table 1.4. Adhesive-label specifications
Item Specification
2
Weight of top sheet 44 to 74 g/m (12 to 20 lbs/ream)
Composite weight 104 to 151 g/m2 (28 to 40 lbs/ream)
Thickness of top sheet 0.086 to 0.107 mm (3.9 to 4.2 mils)
Composite thickness 0.115 to 0.145 mm (4.5 to 5.7 mils)
Moisture content 4% to 6% (composite)
1-13
G E N E R A L I N F O R M A T I O N
Envelopes
The printer can print on envelopes using paper with a basis weight of 60 to 79
g/m 2 (16 to 21 lbs/ream). Envelopes must be manually fed.
An envelope is a more complex object than a single sheet of paper. For this rea-
son, it may not be possible to obtain consistent printing quality over the entire
envelope surface.
Many envelopes have a diagonal grain orientation. (See Paper Grain above.) This
orientation is more likely to wrinkle and crease on its way through the printer.
Before purchasing envelopes for use with the printer, test a sample to verify the
envelope's suitability.
Do not use envelopes having an encapsulated liquid adhesive.
Avoid long printing runs consisting of envelopes only. Extensive envelope print-
ing can cause premature printer wear.
To avoid jam due to curled envelopes, do not leave more than approximately 10
printed envelopes stacked in the face-up paper tray during multiple printing the
envelopes.
Colored Paper
Colored paper should satisfy the same conditions as white bond paper. In addi-
tion, the pigments used in the paper must be able to withstand the heat of fusing
during the printing process (up to 190° C or 374° F).
Preprinted Paper
Preprinted paper should have a bond paper base. The preprinted ink must be
able to withstand the heat of fusing during the printing process, and must not be
affected by silicone oil.
Do not use paper with any kind of surface treatment, such as the type of paper
commonly used for calendars.
1-14
G E N E R A L I N F O R M A T I O N
1.4. Maintenance Schedule
The Ecosys printer does not normally require periodic replacement of the drum,
developer, fuser, etc. Only maintenance needed on schedule is to add toner when
the toner supply in the developer dwindles.
1.4.1. Supplying Toner
When the printer begins to run low on toner, the message display displays Warn-
ing Low Toner TK-12. At the earliest convenient opportunity after this message
is shown, the toner supply in the developer unit must be replenished by install-
ing a new toner kit TK-12.
The Ecosys printer requires drum cleaning toner in order to guarantee optimum
machine performance and print quality. We recommend using only proprietary
Kyocera Microfine Ceramic Toner (TK-12).
To supply toner in the developer, refer to the printer's User Manual.
Toner supply interval
Approximate toner supply interval is every 10,000 pages (depending on the
amount of printing per page: Approximately 5%).
On the toner kit
Kyocera Toner Kit TK-12 contains a toner container, a cap (to seal the old toner
container), and an instruction sheet (5 languages).
1-15
G E N E R A L I N F O R M A T I O N
1.5. Jigs and Tools
The following tables summarize jigs and tools available for Ecosys printers. See
the regional Kyocera office for availability.
Table 1.5. Jigs and Tools
F-2200S/2000A
P-2002/Q-8010
Model
F-5000/5500/A
F-3300/3000A
FS-1550/A/+
FS-1600/A/+
FS-3400/A/+
FS-3600/A/+
F-3000/3010
FS-6500/+
FS-1500/A
FS-3500/A
F-800T/A
F-1000/A
F-1800/A
F-1200S
FS-850
FS-400
F-1010
F-2010
F-2200
F-820
CO-1/Grease (Electroconductive) ·············· ···· ·
CO-2/Grease for Gears
···················· ·
CO-3/Grease for Clutches
····· ········
CO-4/Cleaning Cloth (3,000 pcs.) ···················· ·
CO-5/Grease for Feed Clutch
·
CO-6/G501
········
CO-7/FG721 (Fuser) ······ ·
TO-1/Gripping Clippers
······· ····
TO-2/Proof Screwdriver
·············
TS-1/Temperature Fuse Adjuster
······· ·
TS-2/Feed Roller Adjuster · ·· ·
TS-3/Clutch Gap Adjuster
······· ···
TS-4/Interlock Stopper
······· ···
TS-5/Face-down Short Pin ······· ···
TS-6/Laser Module Short Pin
············
TS-7/Extension Board (Controller)
·
TS-8/Extension Board (Logic) ·
TS-9/Extension Cable (for TS-7)
·
TS-10/Diagnostics Kit
·
TS-11/Diagnostics Kit
····
TS-12/Diagnostics Kit ·
TS-13/Extension Cable
·· ·· · ·
TS-14/Diagnostics Kit
·
TS-15/Diagnostics Kit ·
TS-16/Feed Unit Adjuster
· ··
TS-17/Diagnostics Kit
·
TS-18/Main Board Checker ·
TS-19/Feed Roller Adjuster
·
TS-20/Diagnostics Kit
··
TS-21/Extension Cable
·
TS-22/Laser Module Short Pin ·
TS-23/Diagnostics Kit
·
TS-25/Diagnostics Kit
·
TS-26/Extension Assembly ·
TS-27/Toner Sensor Extension
·· ···
TS-28/Density Sensor Extension
·· ···
TS-29/Diagnostics Kit ·
TS-30/Extension Assembly
·
TS-31/Interlock Stopper
· ·
TS-32/Diagnostics Kit
·
TS-33/Expansion Assembly ·
TS-34/Diagnostics Kit
·
TS-35/Extension Board
·
TS-38/Extension Cable ······ ·
TS-39/Diagnostics Kit
·
TS-40/Expansion Assembly
···· ·
TS-41/Diagnostics Kit · ·
TS-42/Diagnostics Kit
·
TS-44/Diagnostics Kit
·
TS-45/Expansion Board (KP-387A)
·
TS-46/Expansion Cable Assy ·
TS-47/Diagnostics Kit
·
TS-48/Diagnostics Kit
·
1-16
G E N E R A L I N F O R M A T I O N
Jigs and Tools - Continued
F-2200S/2000A
P-2002/Q-8010
F-5000/5500/A
Model
F-3300/3000A
FS-1550/A/+
FS-1600/A/+
FS-3400/A/+
FS-3600/A/+
F-3000/3010
FS-6500/+
FS-1500/A
FS-3500/A
F-800T/A
F-1000/A
F-1800/A
F-1200S
FS-850
FS-400
F-1010
F-2010
F-2200
F-820
ME-1/Power Meter [ML9002A/9006A] ··············
ME-2/Power Meter Sensor [MA912A/B] · ·
ME-3/Digital Thermometer ···········
ME-4/Thermometer Probe ···· ···· ··
ME-5/Probe Holder ·
ME-6/Thermometer Probe ·
ME-7/Thermometer Probe · ·
ME-11/Thermometer Probe ·
ME-12/Thermometer Probe ·
ME-13/Thermometer Probe ·
ME-14/Thermometer Probe ·
ME-15/Thermometer Probe ·
ME-16/Thermometer Probe
·
1-17
G E N E R A L I N F O R M A T I O N
1.6. Product information
1.6.1. General
The Kyocera page printer is primarily designed for minimum requirement of re-
plenishment or consumables. The only maintenance needed is to periodically re-
plenish the toner supply. This ensures reduction of the down time which may re-
quire unexpected repair.
The printer is a self-reliant, versatile machine with considerable native intelli-
gence. Using its own microprocessor and memory, the printer tests itself and in
general, looks after itself with a minimum of help.
In case of internal trouble which the user's maintenance activity should be lim-
ited, the printer tells the need for attention on its display whether it is caused of
mechanism or controller electronics error (Chapter 6).
1.6.2. Printer Features
This Kyocera page printer features one of the newest and best computer printing
technologies. Printing can be found faster, quieter, and much more versatile, and
the near-typeset quality and excellent graphics will be really appreciated by a
wide range of users.
The Kyocera printer also has many extremely desirable features. (For technical
specifications, refer to section 1.5.3. which follows.) These include:
High speed: A4-size pages typically print at the rate of 10 (Series 1550) or 18
pages per minute (Series 3400). (Actual time required varies according to page
complexity.)
Large paper capacity: The printer accommodates the paper feed cassette with a
capacity of 250 sheets of 75g/m2 . It also provides a face-down output tray and a
face-down output tray.
Wide print media variety: In addition to standard paper, the printer prints on
special media of a wide range of types and sizes, including envelopes, labels, and
OHP film.
Superb print quality: The printer's combination of the Kyocera's state-of-the-art
technologies, such as the amorphous silicon drum and micro fine ceramics toner,
dynamically driven micro LED printing head, multiple component developing
system, and KIR (Kyocera Image Refinement), provides sharpness and consis-
tency that is unmatched by other printer maker.
Software features
Bitmapped and scalable typefaces: In addition to its 79 internal bitmap fonts, the
printer provides 13 fully-scalable resident typefaces. The scalable typefaces can
1-18
G E N E R A L I N F O R M A T I O N
be used at any size desired to 999.75 points, in 0.25-point increments.
A new printer control language: PRESCRIBE II features including advanced
graphics capabilities that allow you to print any conceivable outline shape or
solid form. Also provided are a variety of special effects, such as patterned fills,
gray-scale shading, a user-accessible print image model, and multiple page orien-
tations and print directions within the same page.
Automatic rotation of fonts and graphics: Images and scalable fonts are automat-
ically rotated to match the page orientation.
A wide variety of internal symbol sets: The printer supports most of the Hewlett
-Packard LaserJet III compatible symbol sets for both bitmap and scalable fonts.
Display of printer messages in any of seven languages: The message display tells
various information in any of English, French, and German.
Two IC card slots for option fonts, macros, fonts, etc.: Data in the IC cards scan
be selectively reread from the printer's control panel.
Large memory: 1MB of base memory, expandable with optional SIMMs to a
maximum capacity of 5 megabytes.
Multiple interface: Standard serial, Centronics, and an option interface for simul-
taneous use of the printer by different computers.
Simple network management protocol (SNMP) compliance [Plus version only]:
Offers network managers complete open system network management.
Maintenance features
Compact design: Thanks to the inboard paper feed cassette, the printer's com-
pact design requires less space to occupy.
Ultra long life modules: The main modules for developing image and printing,
such as the drum, developer, and the fuser, are specifically designed to ensure ex-
traordinarily long life and no periodic replacement. The drum is made of amor-
phous silicon which is environmentally transparent and never wears out even af-
ter several hundred thousand pages of printing are made. The only maintenance
regularly needed is to replenish the toner supply in the developer every approxi-
mately 10,000 pages and cleaning some parts inside the printer.
Safe and clean waste: The toner supply container and the waste toner bottle are
made of a burnable material which generates no harmful gas when burning.
Options
a Paper cassette PC-7: Available in either A5, B5, A4, letter, or letter/legal size.
a Paper feeders PF-5/PF-7
a Universal feeders EF-1/UF-1
a Sorter SO-6
a 2000-sheet bulk stacker HS-3
1-19
G E N E R A L I N F O R M A T I O N
a Duplexer DU-1
a Face-down path adaptor PA-4 (for DU-1)
a KPDL upgrade kit PK-2: Upgrades the printer for compatibility to the Post-
Script® command language; includes ROMs and fonts.
a PCL font ROM FR-1
a AppleTalk® interface board IB-3
a Network printer interface board IB-4 (Ethernet 802.3 or II compatible, BNC or
UTP cabling)
a Network printer interface board IB-5 (Ethernet 802.3 or II compatible, AUI ca-
bling)
a Network printer interface board IB-6 (Token Ring compatible, Type-1 cabling)
a SCSI interface board IB-7
a High-speed parallel interface board IB-8
a RS-232C interface board IB-9
Related documentation
a Ecosys FS-1550/1600/3400/3600 series combined User's Manual
a PRESCRIBE II Programming Manual
1-20
G E N E R A L I N F O R M A T I O N
1.6.3. Printer Specifications
Description
Item
FS-1550 series FS-3400 series
Engine Printing method Electrophotography, LED direct scan
Printing speed (A4 or 10 pages/minute 18 pages/minute
letter-size paper, when
printing multiple copies
of the same page)
Resolution 300 dots/inch (vertical and horizontal) with KIR (Kyocera
Image Refinement)
First print (A4 or letter Approx. 20 seconds Approx. 17 seconds
size), depends on input
data
Warm-up time (at 20° C) 120 seconds or less 150 seconds or less
Duty cycle 25,000 pages/month 50,000 pages/month
Developer Multi-component dry developer
Main charger Scorotron charger
Transferring Charger roller
Separation Curvature separation
Drum cleaning Blade cleaner
Drum discharging Illumination by eraser LED array
Fuser Heat roller and pressure roller
Paper Plain paper. See section 1.3.
Paper feed tray A4 or letter size. Holds up to 250 sheets of weight 75g/cm2 ,
thickness 0.1 mm.
Capacity of output trays Face-down tray: 250 sheets; Face-up tray: 250 sheets
Miscellaneous Ambient conditions Temperature: 10 to 32.5° C (50 to 90.5°F )
Humidty: 20 to 80 % RH
Optimum conditions: 20° C and 65 % RH
Altitude: 2000 m
Illumination: Max. 1500 lux
Power requirements 120V, 60Hz, max. 5 A 120V, 60Hz, max. 8 A
(Max. allowable voltage (US/Canada) (US/Canada)
fluctuation: ±10%; 220-240V, 50/60Hz, max. 220-240V, 50/60Hz, max. 4 A
Max. allowable frequency 2.5 A (Europe) (Europe)
fluctuation: ± 2%)
Power consumption Max. 550 W Max. 960 W
15 W during sleeping 19 W during sleeping
Noise (Measured 1 m Max. 50 dB (A) when Max. 53 dB (A) when
from the outside of the printing (excl. peak values) printing (excl. peak values)
printer) Max 37 dB (A) when Max 39 dB (A) when
idling/sleeping (excl. peak idling/sleeping (excl. peak
values) values)
Dimensions 220 mm (8.7") high 345 mm (13.6") wide 350 mm (13.8") deep
(Excl. protrusions)
Weight 11 kg (24 lbs.)
1-21
G E N E R A L I N F O R M A T I O N
Description
Item
FS-1550 series FS-3400 series
Controller Controller MC68EC020 (16.5 MHz) + Engine: µ PD78002
System ROM size 1 MB (4Mbit by 2)*1
Font ROM size 2 MB (16 Mbit by 1); 16-bit bus; 13 outline fonts+79 bitmap
fonts*2
Option fonts 2 IC sockets
First: 2MB (16 Mbit by 1), 16-bit bus; for FR-1 or PK-4*3
Second: 4Mbit by 1 for customizing EPROM (The device type
should be same as the system ROM.)
Main RAM 1 MB (4Mb by 2) expandable up to 5MB
Option RAM One slot for PC SIMM: 1, 2, One slot for PC SIMM: 1, 2,
or 4 MB. 4, or 8 MB.
SRAM 64 kbits
IC card One slot (JEIDA 4.0/PCMCIA 1.0 compatible)
Host interface Standard Centronics interface High-speed Centronics
and an option interface interface and an option
interface
Front control panel One LCD: 16 char. by 2 rows, 12 keys, 13 LED's, trilingual
config. message (English, German, French)
Native page description Prescribe II
language
Standard emulation Line printer, IBM Proprinter X-24E, Diable 630, Epson
modes LQ-850, HP LaserJet III
Optional emulation KPDL (PostScript)
Gate arrays 16 by 16 rortation, ALU, pattern generator, print model, KIR,
EcoPrint (included within the controller GA), reverse
sweeping-out, high-speed Centronics interface control (only
for the FS-3400/A)
*1 Mask-ROM (compatible with EPROM in consideration of firmware modification)
2
* Compatible with the mask-ROM for FS-400, FS-850, and FS-1500.
*3 FR-1 includes 46 outline and 8 bitmap PCL fonts. PK-4 includes 47 outline PostScript compatible fonts.
1-22
C O N T E N T S
2.1. Introduction, 2-3
2.2. Main Part Locations, 2-4
2.3. Electrophotography System, 2-5
2.3.1. Electrophotography Overview, 2-5
2.4. Paper Feeding System, 2-11
2
2.4.1. Paper Pickup, 2-12
2.4.2. Registration, 2-13
2.4.3. Stack Selection, 2-14
2.5. Electrical System Overview, 2-15
2.5.1. Board Identifications, 2-15
2.5.2. Engine Controller Overview, 2-15
2.5.3. Engine Controller CPU, 2-19
2.5.4. Fuser Heater Controller, 2-24
2.5.5. Drum Heater Controller, 2-25
2.5.6. Eraser Controller, 2-26
2.5.7. Toner Motor Controller, 2-27
2.5.8. Developer Toner Concentration Sensor, 2-27
2.5.9. Front Control Panel Controller, 2-28
2.5.10. Main Motor Controller, 2-33
2.5.11. LED Head Driver, 2-34
O P E R A T I O N O V E R V I E W
This page is left blank intentionally.
2-2
O P E R A T I O N O V E R V I E W
2.1. Introduction
This chapter describes how the printer receives data from the host computer,
processes and prints them on paper. Section 2.2. describes the theory of the elec-
trophotography involving those components of the LED head, drum unit, devel-
oper, etc. In later sections, an overview on the electrical circuitry, focusing on the
important functions of the circuitries contained on the main logic board and the
engine controller board, is provided.
2-3
O P E R A T I O N O V E R V I E W
2.2. Main Part Locations
Figure 2.1. below shows the printer's major components inside the printer. De-
tails on each component are shown on the following pages.
Figure 2.1. Main Part Locations
Magnetic Developer Roller
Toner Feed Motor
Toner Container [TK-12]
LED Head
Fuser Heat Roller Drum
Paper Ramp
Registration Rollers Paper Feed Roller
Fuser Pressure Roller
Transfer Roller
2-4
O P E R A T I O N O V E R V I E W
2.3. Electrophotography System
The electrophotography is the technology used in laser and LED printers which
transfers data representing texts or graphics objects into a visible image which is
developed on the photosensitive drum, finally fusing on paper, using light beam.
Two widely known devices that are used to generate and emit the light are laser
diode and LED array (head). The printer uses the Kyocera's proprietary LED
head for this purpose.
The following subsystems in the printer system constitute the main electropho-
tography system.
2.3.1. Electrophotography Overview
The electrophotography system includes the drum unit, developer unit, main
(wire) and transfer (roller) chargers, and the eraser lamp (array).
These components comprise the electrophotography system as illustrated in Fig-
ure 2.2. These components perform a cyclic action made of seven steps as shown
in Figure 2.3. This begins with the main charging as follows.
Toner Agitators
LED Head
Main Charger Wire
Eraser LED Array
Figure 2.2.
Components of
electrophotography
Spiral Fins
Toner Concentration Sensor
Developing Blade
Cleaning Roller
Drum Magnet Developer Roller
2-5