Epson FX Series User manual

11
•
I-'
.1
r •
EPSON
FX,RX,MX
PRINTERS
Product
Support
Supplement
The
Centre
for
Computing
History
ff
www.CompulingHistoiy.org.uk

EPSON FX, RX, & MX PRINTERS
PRODUCT SUPPORT SUPPLEMENT
600P89074
FEBRUARY 1986
Prepared by:
Curriculum Development Service's
XICTMD/Service Training
XEROX
« Copyright 1986 by Xerox Corporation
Allrights reserved
Epson FX. RX, and MX are registered trademarks of
Epson America, Inc.
PRINCIPLES OF OPERATION 1
WIRING DATA

EPSON PRINTERS CONTENTS
INTRODUCTION
Introduction ii
How to use this Manual ii
1 PRINCIPLES OF OPERATION
1.1 Principles of Operation 1-1
2 WIRING DATA
2.1 Introduction 2-1
2.2 FX-85/185 2-2
2.3 FX-80/100 2-6
2.4 RX-80/100 2-10
\JiSy 2.5 MX-80/100 2-13

INTRODUCTION
INTRODUCTION
This manual contains detailed principles of operation, electrical description,
and wiring information for the Epson FX, RX, and MX family of dot matrix
printers. It should only be used by Xerox Service Center leaa technicians or
service representatives.
HOW TO USE THIS MANUAL
Start with the Product Support Manual. If the Printer has a unique problem
that the PSM does not support then refer to the appropriate Principles of
Operation, Electrical Description, or Wiring section of this manual. The
schematic diagrams are provided to assist you in isolating components that
are field replaceable.
EPSON PRINTERS

EPSON PRINTERS
1.1 PRINCIPLES OF OPERATION
The descriptions of the printer mechanics is generic to all models with few
exceptions.
O
PRINTER MECHANISM
Theprinter mechanisms are dot matrix mechanisms withsub-miniature print
heads developed for high quality, precision printing. Because some the units
come with tractor feed attachments and also are equipped with rubber
plates,they maybe usedwith continuousbusiness forms or rolledor cutsheet
paper, as required by the user. No special additional equipment need be
purchased to accommodate the various paper types. Basic operation of all
the models is essentially the same.
Sensor Mechanisms
Sensor mechanisms on all models include the home position (HP), print
^ timing (PTS), and the paper end (PE) sensors.
Home Position (HP) Sensor
The HP sensor assembly consists of a HP sensor and a sensor plate,
situated beneath the carriage assembly. The sensor emits a HIGH signal
whenever the sensor plate intercepts the optical axis of the photo
sensor. The variations in the signal alert the main CPU as to when the
carriage isin or out of the home position (i.e. the left end of the platen).
This signal servesas a
reference signal for the printing operation.
^ Print Timing Sensor (PTS)
The PTS sensor mechanism consists of the sensor and a sensor disk,
located on the shaft of the carriage motor. The PTS signal is generated
in order to coordinate carriage speed with firing of the dot wires,
allowing adequate time for the print operation to be performed. A
HIGH signal isemitted asthe slits inthe disk pass the optical axis of the
photo sensor.
1-1
PRINCIPLES OF OPERATION
Paper End (PE) Sensor
The PE sensor consists of a reed switch mounted on the PE sensor board
and a reed magnet mounted on a PE sensor lever. The assembly is
attached at the rear of the printer mechanism. When the printer runs out
of paper, the reed magnet and reed switch meet causing the PE warning
signal to be output.
PRINT ASSEMBLY
The print assembly is comprised of the carriage assembly, including the
carriage motor, timing belt, and platen; ancf the print head, which is
mounted on the carriage assembly.
Carriage Assembly
The carriage assembly is moved back and forth along the carriage shafts
by the timing belt, which is driven by the carriage motor via the belt
driven pulley. (Figure 1-1)
Carnage
Carnage motor
Timing belt
Fig. 1-1. Carriage Mechanism

PRINCIPLES
OF
OPERATION
The
carriage
motor
isa 2-2
phase
stepper
motor.
C
phase
A
phase
D
phase
(ROTORl B
phase
Q
••
—o-
Fig.1-2. Carriage
Motor
Connections.
The
timing
belt
drive
sequence
is
demonstrated
in
Table
1-1, As
the
carriage motor rotates,
PTS
pulses
are
generated,
energizing
the
head
driving coils,which inturn fire
the
dot
wires housea in
the
print head.
TABLE
1-1. Carriage
Motor
Step
Sequence
Carriage
Motion
Step
Na
A
phase
Bphase
C
phase
D
phase
1
ON
OFF OFF
ON
l.«ft
-
tight
2
ON
OFF
ON
OFF
3
OFF
ON ON
OFF
4
OFF
ON
OFF
ON
1ON OFF
''
ON
OFF
Right left 2
ON
OFF
OFF
ON
3
OFF
ON
OFF
ON
4
OFF
ON
ON
OFF
As
the
carnage
motof
rotates.
PTS
pulses
are
senerated.
energizing the
head
driving coils, which in lurn
fire
the
dot
wires
housed
in
the
print
head.
1-2
EPSON
PRINTERS
Printing
Operation
When
the
head driving coilfor a
dot
wire isenergized,
the
actuating plate
engaaed
at
one
end
of
the
dot
wire is
attacheclto
the
iron core, driving
the
dot
wore toward
the
platen. The
dot
wire,thus driven, strikes
the
ribbon, pressing it against
the
paper
on
the
platen assembly,
and
causing
a
dot
to
be
imprinted.
When the head driving coil is de-energized, the actuating plate spring
recoils,
causing
the actuating plateto
spring
back
to it's
original
position.
Thedot wirealsosprings backunderthe combined forceof
impact
energy
and the recoilof
the
wire resetting spring, and isagain engaged with
the
actuating plate until
the
next print
head
drive signal occurs. Firingof a
dot
wire isdepicted in Figure 1-3.
Wire reset spring
Stopper
Actuator
plate
Ooi
wire
Ribbon
mask
Ribbon
• Iron
core
Paper
'^Actuator
plate
spring
Fig. 1-3.
Print
Mechanism
Platen

EPSON
PRINTERS
PAPER
FEED
MECHANISM
The
Model
3510/3560
mechanisms
are
adaptable
for
use
with
different
paper
types. The Model 3510 has
three
paper
feed options: friction, pin platen, or
sprocket
feed,
and
utilizes
three
paper
types: roll,
cut
sheet,
or continuous
business
form.
The Model 3560
operates
with
both
friction
and
sprocket feed,
and
may be
used
with
continuous
business
forms
or
cut
sheet
paper.
Friction Feed System (For Rollor Cut
Sheet
paper)
The friction
feed
system permits use of roll (Model 3510 only) or
cut
sheet
paper, which is fed
through
the
platen
assembly
between
the
paper
feeding
and
paper
holding rollers.
Paper
support
roller
Paper
feed
roller
Platen
gear
Platen
Paper
feed
gear
Fig.1-4. Friction Feed Mechanism
Paper
tead
motor
1-3
PRINCIPLES
OF
OPERATION
Pin Platen Feed System (For Continuous Business Forms 9.5
and
10 Inches
in Width/Model 3510 only)
In
the
pin
platen
feed
system,
paper
is
held
in place
on
platen
sprocket
pins
on
the
platen
shaft.
When
the
paper
feed
pulse
motor
rotates,
the
platen
aear
train
is
driven,
rotating
the
gears
as
illustrated
in
Figure
1-5,
and
pulling
the
paper
along
on
the
sprocket
pins.
When
the
pin
platen
feed
system is
used,
the
paper
feed
rollers
are
held
apart
by
the
release lever, since no friction is required
for
movement
of
tne
paper.
Platen
Sprocket
ptn
Sprocket
wheel
Platen
gear
Paper
feed
motor
Fig. 1-5. Pin Platen Feed Mechanism

PRINCIPLES OF OPERATION
Sprocket Feed System (For Continuous Business Forms)
Similar
to the pin platen feed operation, in the sprocket feed system,
perforations on the paper margins are fitted over the pins on the
sprocket wheel, the paper islocked in place bya paper holding cover,
and is drawn through the platen assembly astne gear train is activated
by the paper feed motor (Fig. 2-6).
- sprocket pin
Sprocket wrteel
Sprocket gear
Sprocket transmission gear
Paper feed gear
/ Paperfeed motor
Platen gear
Fig. 1-6. Sprocket Feed Mechanism
1-4
EPSON PRINTER
RIBBON FEED MECHANISM
The ribbon feed unit of the Printer mechanism consists of a cartridge ribbon
and a ribbon feeding mechanism which is set on a belt tension plate
assembly. The right or left motion of the timing belt is transmitted to the
ribbon drive gear through the gears on the belt tension plate. Due to
conformation of the gear train, the ribbon is always fed in a counter
clockwise direction.
When the ribbon feed roller is driven by the ribbon drive gear, the
continuous loop, inked ribbon is wound between the ribbon feed roller and
the ribbon support roller. The ribbon brake spring is set at the exit of the
cartridop case to prevent slack as the ribbon is wound in.
Ribbon laading roller
\o,
Ribbon pressure roller
Ribbon mask
Planstdry pmiori I
Planatary pmion .. Ji
Ribtwn braking spring
Ribbon driving gear
Planetary pmion .4
Pldneidty pinion 3
Bell
drivan
Iley
Carriage
Fig.1-7. Ribbon Feed Mechanism

EPSON PRINTERS
ELECTRICAL CIRCUITRY
Power Circuit
The AC input power is supplied to the power transformer through the filter
circuit. The outputs from the secondary side of the power transformer are
input to the circuit board and converted into DC voltages via the regulator
circuit. These DC voltages are supplied to their respective corresponding
electronic circuits.
FX-80+/100+
Filter
Circutt
Power
Trans
former
AC
r
♦5V O-
+24V O-
VX08 (option)
Rogulator
Circuit
n
F)^^ircuU_Bo^ _j
Fig.1-8. BlockDiagram of Power Circuit
FX-8S/185/105
fXEXT
-O +5V
-O +24V (Vp)
-O +12V
-O -cBV
-O VKp
-o Vkc
AC12V
1-5
Voltago
+24V
(VPI
♦5V
(Vcc)
♦ lav
_AC12V
Vkc (♦6V)
Vx P|t5V|
PRINCIPLES OF OPERATION
TABLE 1-2. Types and Applications of Power
Application
CD CorriBO motor driva
(|) Paper feed motor driva
(D Print solenoid drive
(i) li>iertaceoption circuit board power
t'T) FXMB logiccircuitdrive
(X) Carnagemotor tiolding
CD Paper feed motor holding
® Indicator lamp drive
Cjij Interface option circuit board power
Cf) FXEXT logiccircuitdnve
(I; Interface option circuit board power
(D Interface option circuit board power
CD Power reaei
(I) Buzzerpower
(D Print solenoid protection

PRINCIPLES OF OPERATION
Filter Circuit
The filter circuit is situated on the FFIL circuit board together with the
printer power switch and fuse. The power cable is also, connected to the
iPilter board.
The AC input from the power line first flows across the power switch
and fuse F1. After being filtered out by C1, it issupplied to the primary
side of the power transformer via the LC noise prevention circuit. Power
line noise (external noise) into the printer and noise (internal noise)
occurring from the printer are eliminated by this noise prevention
circuit. Capacitors C2 and C3 are not used for the 120\/ version.
sw
Fl
L O-
. d\j>
SOOajH C2 ^ i.700P
C1 dp O lpF
CN1
C3 iz 4700P
N O-
>N>.
-O
Fig. 1-9. Fuse and FilterCircuit
1-6
EPSON PRINTERS
Power Transformer
In the Printer, the power transformer changes the AC input into AC 26V
and 12VAC through the filter circuit and supplies necessary voltages to
the control circuit and option interface circuit.
PRIMARV PRIMARY
flCitC. o-
AClZOv o-
Bl ACK
SECONOARy
orange
SECONDARY
o
50/60HZ
Ov o-
TF
Pgray"
I flfay
wange
orange
AC9.1V
AC27 7V
o-
50/60H2
Ov O-
BROWN
white
iQfay
Ofange
orange
120V Version 220/240V Version
Fig. 1-10. Power Transformer Windings
AC9.0V
AC29.8V

EPSON PRINTERS
Regulator Circuit
In
this circuit, the output (about 38\/) from the secondary side of the
transformer is input to the diode bridge DB1 in which It is full-wave
rectified. In this way, constant voltage outputs of + 24\/ and -»• SV are
obtained from the choppertype regulator IC1.
Carriage Motor Drive Sequence
The carriage drive motor in the printer mechanism, which uses a pulse
motor, permits the carriage to stop at an arbitrary position or to change
the print direction by control of acceleration or deceleration. Control is
achieve by comparing the time set by the firmware and the PTS signal,
detected when the carriage operates.
When driving the carriage from left to right
TABLE 1.3. CARRIAGE MOTOR STEP SEQUENCE (CW)
STEP A phase B phase C phase D phase
1
ON
OFF OFF
ON
2 ON OFF
ON
OFF
3
OFF
ON ON
OFF
4
OFF ON OFF ON
When driving the carriage from right to left
1-7
PRINCIPLES OF OPERATION
TABLE 1-4. CARRIAGE MOTOR STEP SEQUENCE (CCW)
STEP
A phase
B phase
C phase
D phase
1
ON
OFF ON
OFF
2
ON
OFF
OFF ON
3
OFF
ON
OFF ON
4
OFF
ON ON
OFF
Inpica-si<« prtniing. approx 1 004 msec
_n n n
In eliie Site printing approx 1 57) msec
^
n n
In condensed size printing appro* 2.313 msec
nn
Fig. 1-11 Carriage Speed

PRINCIPLES
OF
OPERATION
Speed
Comparison
When
the
PTSSignal is
detected
later
than
the
set
time,
phase
selection
is
made
at
the
leading
edge
of
the
PTS
signal.
PTS
n.
n
Solenoid
drive
pulse
A
phase
B
phase
C
phase
0
phase
1
1
1
t
1
t
Sat
time
Fig. 1-12. Carriage
Speed
(Too Slow)
1-8
EPSON
PRINTERS
When
the
PTSSignal is
detected
earlier
the
the
set
time,
the
phase
selection
is
made
at
the
leading
edge
of
the
PTS
signal.
PTS
Solenoid
drive
pulse
A
phase
B
phase
C
phase
0
phase
n
It .
Set
time
Fig. 1-13.
Carriage
Speed
(Too
Fast)
nmr-
ROTOR
•imy
-O
CRA
-O
CRB
-O
CMAS/CMCD
-OCRD
-OCRC
Fig. 1-14.
Carriage
Motor
Connections

EPSON PRINTERS
Print and Paper Feed Timing
In an alternating operation of the print and then paper feed, the
minimum time interval from paper teed start to print start is set to
approximately 150 msec.
-O PFA
imp
-^RRRT
\ . /"TOOOOi
^ ' 0000 ^—
1 ROTOR 1 (
c
A (1 ( QQQO > c
-O PFB
-O PFCM
-O PFD
-O PFC
Fig. 1-15. Paper Feed MotorConnections
Paper feed in forward direction
TABLE 1-5. PAPER FEED MOTOR STEP SEQUENCE (CW)
STEP No.
A phase
B phase
C phase
D phase
1
ON
OFF
ON
OFF
2
ON
OFF
OFF
ON
3
OFF
ON
ON
OFF
4
OFF
ON
OFF
ON
1-9
PRINCIPLES OF OPERATION
TABLE 1-6. Paper Feed Motor Step Sequence (CCW)
STEP No.
A phase
B phase C phase
D phase
1
ON OFF
OFF
ON
2
ON
OFF
ON
OFF
3
OFF
ON ON OFF
4
OFF
ON
OFF
ON

PRINCIPLES
OF
OPERATION
PRINT
CONTROL
The
head
solenoid
drive
signals
(PA7-PA0, PB7)
from
the
main
CPU
are
input
to
predrivers
IC IB
and
2C.
When
these
input
signals
are
LOW
(normally
HIGH
to activatethe predriver), the outputs of the predriverare cut off. When the
Credriver
outputs
are
cut,
voltage
Vxp
(+
5)
decreases
the
drive
transistor
ase
voltage,
and
the
driver transistors (Q6-Q14)
turn
on
to
activate
the
head
solenoid.
tjHSSV,
jmi
Hi
X M
ooo
^no66()(>i>n
imh
• • >
xO
UKU
l
<tc
•4I«I4
'It
CNS
Fig. 1-16. Head Driver Circuit
MO
EPSON
PRINTERS
Energization
Timing
For
the
energization
timing,
the
PTS
signal
which
is
generated
when
the
carriage
is
operated,
is
input
to
PCS
of
the
main
CPU.
The
main
CPU
outputs
a LOW
signal
which
has
an
energization
pulse
width.
Energizing
Time
Control.
The
energizing
time
is
controlled
according
to
reference
voltage
Vt
which
is
input
to
ANO
of
the
main
CPU.
Reference
voltage
Vt
is
normally
factory-adjusted
by VRI
to
•(•2.5
V
against
4-247
of
print
solenoid applied voltage
Vp.
The energizingtime is
400usec
± lOusec
+2.5\/
of
reference
voltage
Vt.
When
print
solenoid
applied
voltage
Vp
changes,
reference
voltage
Vt also varies. The ANOsignal works
to
A/D
convert
this
variation
to
control
energizing
time.
<
Energizing
time>
400
300
2\
6V
24V
26
4V
Fig. 1-17 Energizing Pulse
Width

EPSON PRINTERS
Print Solenoids (Print Head)
Number of solenoids
Driver applied Voltage
Coil impedence
Energizing time
21.6-26.4V
19.2 ohms ± 1.9 ohms (at 25° C)
390-410 usec (at 24V/25'' C)
^ 1 004 ms ^
PTS Signal
Drive pulse
J—L
c >
400 ws £ 10,iS|24V)
Fig. 1-18. PTS and Drive PulseTiming
1-11
Print Timing
PTS signal
Print solenoid 1
Print solenoid 2
Print solenoid 3
Print solenoid 4
Print solenoid 5
Print solenoid 6'
Print solenoid 7
Print 1
Print 2
Print 3
Print 4
Print 5
Print 6
Print 7
PRINCIPLES OF OPERATION
-1
" • • L' • L' •
Print solenotd dnvu pulM
-l
--
-j -1
—i
-1 -1
-1
—
-I
-
A
w
A
W
A
w
A
w
w
A
W
w
w9A
w
A
w
m
Fig. 1-19. Print Timing

PRINCIPLES OF OPERATION
Correspondence between dot wires and FPC
Common Itna
Wire arrangement
Fig. 1-20. Print Head
1-12
DETECTION MECHANISM
HP (Home Position)Sensor
Detection System
Output System
Circuit
Photo-electric conversion
Open-collector
See Fig. 1-21
+5V
200a
■^vw—♦
I 5Ka
1.5 nn
-o wv—
470P
LS74
0 Q
BB
CL
PTS aisnti
Fig. 1-21. HP Sensor Circuit
Timing
T Kgntl
n tignal
|wav« at point |A))
HOME iignil
(wave at point (81)
Horn* poiition
Fig. 1-22. First Dot Position
EPSON PRINTERS
•O RtiS"*'
-O KOMEugn*!
Utdol

EPSON PRINTERS
PIS (PrintTiming Signal) Sensor
Detection System Photo-electric conversion
Output system TTLlevel
Circuit See Fig. 1-23
+5V
IBOaSV. ®
Constant voltage
'—I
V—4 -- "
T "
3 3K^
4584
•j^o—o PTS Siflnal
3.3 Kn
m fn
Fig. 1-23. PTSCircuit
470 PF
m
Operation: The sensor detects the light through the slits on the sensor
timing disc under the carriage motor at the right side of
the printer mechanism durino operation of the carriage.
The PTS signal, thus detected, is used asthe reference of
the followmg conditions:
a. It is input to the slave CPU through IC8A and IC7C on
the main board to correct the carriage speed.
b. Itisinput to the main CPU through IC 8Aon the circuit
board to determine the print timmg.
c. It latches the status of the home position.
1-13
PE(Paper End)Sensor
Detection system
Svy/itch rating
Switch mode
PRINCIPLES OF OPERATION
Reed switch
10-50 mA. 5VDC ±5%
See table 1-7
TABLE 1-7. Switch Mode
Paper
Switch Moda
Presence
OPEN
Absence
CLOSE
Operation: In case of the paper out detection isvalid.
The paper end sensor is actuated when no paper remains.
The condition of the interface signals when paper end
sensor is actuated is as follows on table 1-8.
TABLE 1-8. State of InterfaceSignals
Signal namo
Connector CN1
Pin No.
Condition
ERROR 32 Low
PE (paper end)
12 High
BUSY
11
High
ACKNLG
10
No pulse is output

EPSON PRINTERS WIRING DATA
2.1
WIRING
DATA
INTRODUCTION
This section includes signals
and
pin
assignments
relating
to
the
various
connectorsproviding electrical connectionsamong printer components
such
as the printer
mechanism,
the control
circuit
boarcC
and the control panel.
Each modelwill
be
described individually.
2-1

WIRING DATA
2.2 FX-85/185
Connector CN1-FX85/185
Use: Data exchange between host computer and the Printer.
TABLE 2-1 PIN ASSIGNMENT OF CN1 (FXMB Circuit Board)
PmlWIntMfae*
Wltti ttMM tigRal^
uMtwistad-patrca'
b4« tnd connaci "fU-
tuffl-to LOGIC 6N0.
Not*: Th« •tgntla
Mfhich ara aetiva at
-LOW-waindicMad
byabarabova.
Signal
PfatNo.
10
12
13
Ratum
PbiNa
10
20
21
22
23
24
28
26
27
2S
29
30
Slgnai
0ATA1
2
3
4
6
«
7
8
ACKNLG
BUSY
PE
SLCT
Tranamlttar
HoatComputar
HoatComputar
Pnntar
Printar
Prinlar
Oaacflption
STROBE pulaa for ratd>in of data,
pulsa wridth muai ba moia than
0.6 un at racatvlng larmintl.
Tha signal laval ia normally
HIGH;
raad-in of data la parformad at
tha LOWlaval of thia atgnal.
Thaaa algnala rapratant informa
tion of tha 1at to Sth bita of paral-
laldata raapactlvaty- Each aignal
iaat
HIGH laval whan data talogi
cal 1 and LOW whan logical 0.
LOW aignal indicataa that data
haa baan racaivad and that tha
printar la raady to accapt othar
data.
Approx. 12f«pulaa.
A HIGH signal indicataa that tba
printar cannot racaiva data.
A LOW signal indtcaiaa that tha
printar can racaiva data.
Tha atgnal bacomaa KK3Hin tha
fotloMring
easaa;
1. During data antiy
2. During printing oparation and
part of haad carrtar oparation
3. During part of papar faad
4. Ounng pnntsr arror status
5. In OFF-LINE suta
A HIGHsignal indieataa that tha
printar is out of papar.
Putlad up to '»5V through 3.3 IlO
rasiatanca
2-2
EPSON PRINTERS
TABLE 2-1 (cont.)
Signal
Pin No.
Ratum
Pin No.
Signal
Transmlttar
Daacription
14 AUfb
FEEDXT
Host Computar
With this signal baing at LOW la-
val tha papar is automatically fad
ona Unaaftar printing.
16 NC
Notuaad.
16 GNO
LOGIC GND laval.
17
FG
Printar FRAME GNa
18
NC
Notuaad.
19 - 30
GND
TWISTED-PAIR RETURN signal
GND laval.
31
iNff Hoat Computar Whan tha laval of thia signal ba
comaa LOW, tha print buffar ma-
mory ia claarad. Tha pulaa width
must ba moi* than 60 ^ at tha
racatving taimlnaL
32
^RttbR Printar
Tha laval of thia aignal bacomaa
LOW. Whan tha printar ia In tha
arror autua:
1. PAPER END sttta (cancatlad
byESCS)
2. Abnormal motor oparatlon
3. OFF-LINE auta
33 GND
Twistad pair ratum laval at groundL
34 NC NotuaadL
36 «6V Printar
Pullad up t04^6V thraogh 3.3 kO
rasistanca
36
SLCTtN
HoatComputar With thia aignal baing at LOW la
val. tha printar ia aalactad.
NOTISs
1. "Ratum" danotaa "TWISTEDPAIR RETURN" and la to ba connaetad at aignal ground laval.
2. AHIntaifaca conditiona ara basad on TTL lavaL Both tha tiaa and fall tlmaa of aach aignal muat
ba laas than 0.2pB.
3. Data transfar muat not ba carriad out by igi oring tha ACKNLG or BUSY signal. Whan data
titnafar ia mada in an ERROR atata. tha pnnting and procaaaing of tha data is not guarantaad.

EPSON PRINTERS
Connector CN2-FX85/185
Use: Data exchange between the optional interface board and the
control circuit board. 26 Pins.
TABLE 2-2. PIN ASSIGNMENT OF CN2
WIRING DATA
Connector CN3 - FX85/185
Use: FXEXT circuit board for the FX85/185 or option board connector for
theFX80/100 + . 36 Pins.
TABLE 2-3. PIN ASSIGNMENT OF CN3
PtnNo.
SIsneiNaine
DItactlon
OaMtlptlon of Signal
PlnNa Signal Name
Oirectlen
Description of Signal
1
PS Out
Error
1AO Out
Addret* Bit 0
2PE
Out
Paper End 2
A2 Out Addrtti Bil 2
3
07
In Oau Bit 7 3
A4
Out
Addreu Bil 4
4
iSSVlBUSY) Out (towty
4
A8 Out Addrttt Bit S
6
08
In Oata Bit 0 6
A8
Out
Addin* Bit 8
6ACK
Out
Aeknowlade*
a A10 Out AddiuiBn 10
7
05/PAn0(S
In Oata Bit B/Paniy OtuUa
1
AI2
Out
AddrMt Bit 12
8
iSff
In Initial
8 CS8 Out Chip Stitct S
9 D4/0/E
In Oau Bit 4/Odd Pantv S«lact/Ev«n Paniy Sclaci
9 00 In/Oul
OtuaitO
10
gra
In
Strobe
10 02 In/Oul
Otit Bit 2
II
DS/SI
In Otu Bit 8/Sanal Signal Input
11 04
In/Oul
0<Mait4
12
AC12
Out
*12VAC
12 OS In/Oul Otit Bit S
13
R
Out
Raaat
13 Out Rud Oul Signll
14
ACI2
Out
*12V
14 Sgf Out
Rmci Signal
IB
03/82
In Oaia Bit 3/Sit Rtia Salaci
IS
*24
Out
*24V DC
IS
♦6
Out
*BVOC
IS *5 Oul ♦8V0C
17
02/81
In Otu Bit 2/Bil Rau Salact
17 A1 Oul
Addcatt Bit 1
IS
*24 Out
*24V0C
la
A3
Dul Address 8it 3
19
01/8/7
In Otu Bit 1/8 Bit S«lecV7 Bit Salaet
19
AS
Out /kddrtss Bit 5
20
*12
Out
*I2V0C
20
A7
Oul
Addrtss Bit 7
21
P/S
In PtrtUel Salect/SentI Salect
21
A9
Oul
Address Bit 9
22
_——
22
All
Out Addrtss Bil 11
23
SlUN
In
SalMtIn
23 A13 Out
AddrsssBlt 13
24
OL
_
Ground
24 CS7 Out
Chip Stitct 7
25
TXO^/TRS
In
S«««lSigiulOutput l^/TRS Select)
26 01 In/Oul Otu Bit 1
20
GL _
Ground
28
03
In/Oul DtuBit3
NOTE:
"Direction* refi
27
OB In/Oul Otu Bit 8
irato the diraction of signal (low as viewed from the control circuit board.
28
07
In/Out Ostt Bit 7
29 wS ' Out
Write In SigntI
30 QP
-
31 GL -Logic Ground
32 OL -Logic Ground
2-3
NOTE: "Diraction" raters to tha direction ot tisnal (low at viewed from the control circuit board.