Tektronix 4643 User manual

Tektronix , Inc.
P.O. Box 500
Beaverton ,
Oregon
97077
MANUAL
PART NO .
070-3871-00
Tektronix
COMMITTED
TO
EXCELLENCE
Please
Check for
CHANGE
INFORMATION
at the Rear of this Manual
4643
PRINTER
OPERATOR'S
MANUAL
First
Printing AUG 1981

WARNING
This
equipment
generates
,
uses , and
can
radiate
radio
frequency
energy
and if not
installed and
used
in
accordance
with
the
instruction manual ,
may cause
interference to
radio
communications
. It has been
tested and
found to
comply with
the limits for Class A computing devices pursuant to Subpart J
of Part 15 of FCC Rules , which are designed to provide
reasonable
protection
against such
interference when
operat
ed in a commercial environment . Operation of this equipment
in
a residential
area is likely
to cause
interference
in which
case
the users
at their own
expense will be
required
to
take
whatever
measures
may
be
required to
correct
the
interference
.
Copyright
1980 by
Dataproducts
Corporation
,
Woodland
Hills
, California .
This
manual is
prepared
by the
Dataproducts
Corporation for
the Model M200 Matrix Printer and is reprinted by permission
of
the Dataproducts
Corporation
, Woodland Hills
, California .
New material copyright © 1981 by Tektronix , Inc. , Beaverton ,
Oregon . Printed in the United States of America . All rights
reserved . Contents of this publication may not be reproduced
in
any form without
written
permission of
Tektronix , Inc.
This instrument , in whole or in part , may be protected by one
or more U.S. or foreign patents or patent applications .
Information
provided on
request by
Tektronix , Inc.
, P.O. Box
500
, Beaverton ,
Oregon 97077 .

PRODUCT
:
4643
Printer
This manual supports the following versions of this product : Serial Numbers B010100 and up .
REV
.
DATE
AUG 1981
MANUAL
REVISION
STATUS
Original
Issue
4643
PRINTER OPERATOR'S
@
DESCRIPTION
i

OPERATORS SAFETY SUMMARY
Terms In
This
Manual
CAUTION
statements
identify
conditions or
practices
that
could
result
in
damage to
the
equipment or
other
property .
WARNING
statements
identify
conditions or
practices
that could
result in
personal
injury
or
loss
of
life .
Terms
As
Marked
on
Equipment
CAUTION
indicates a
personal
injury
hazard not
imme
diately
accessible
as
one
reads
the
marking , or a
hazard
to
property ,
including the
equipment
itself
.
DANGER
indicates a
personal
injury
hazard
immediate
ly
accessible as
one reads
the
marking .
Power Source
This
product is
intended
to
operate
from a
power
source
that
does not
apply more
than 250 volts
rms
between
the
supply
conductors
or
between
either
supply
conductor and
ground
. A
protective
ground
connection by
way of the
grounding
conductor in the
power cord is essential for safe operation .
Grounding the Product
This
product is
grounded
through the
grounding
con
ductor of the
power cord . To
avoid electrical
shock
,
plug the
power
cord
into a
properly
wired receptacle
before
connecting to
the
product
input or
output
terminals . A
protective
ground
connection by
way of
the
grounding
conductor in the power
cord is
essential
for
safe
operation
.
4643
PRINTER
OPERATOR'S
Danger Arising From Loss of Ground
Upon
loss
of
the
protective -
ground
connection
, all
accessible
conductive
parts
(
including
knobs and
controls
that
may appear to be
insulating
) can
render
an electric shock .
Use the Proper
Power Cord
Use only the
power cord and
connector
specified
for
your
product .
Use only a
power cord that is
in good
condition
.
Refer
cord
and
connector
changes to
qualified
service
personnel
.
Use the
Proper Fuse
To
avoid fire
hazard
,
use
only
a
fuse of the
correct
type
,
voltage rating and
current
rating as
specified in the
parts list for
your
product
.
Refer
fuse
replacement to
qualified
service
personnel .
Do
Not Operate
in
Explosive
Atmospheres
To
avoid
explosion ,
do not
operate
this
product in an
explosive
atmosphere
unless
it has
been
specifically
certified
for
such
operation .
Do Not
Operate
Without Covers
To
avoid
personal
injury , do not
operate this
product
without
covers
or
panels
installed
.
ii

Section 1
Section 2
Section 3
Appendix A
Appendix B
4643 PRINTER OPERATOR'S
CONTENTS
SPECIFICATION
Introduction ...
Warranty Service
Accessories ...
Standard
Accessories ..
Optional Accessories .
Standard
Interface
..
Optional
Interface
..
Baud
Rate
......
Printer
Characteristics ...
Printable
Forms ...
OPERATING INSTRUCTIONS
Preparation ....
Initial
Power
Connection
Controls
.....
Paper Mechanism Controls .
Forms
Alignment Scale ..
Control
Panel ........
Auxiliary
Control Panel ..
Power - Up Procedure
Self
-
Test
Procedure ...
Shut - Down Procedure .
Status
Indicator Codes
Paper
Loading
....
Ribbon
Replacement
Print
Head
Replacement
Removal
.....
Replacement
Operator
Care
.
Cleaning ...
Operator Maintenance Schedule ..
Unpacking and Installation Instructions .
Introduction ....
Space
Requirements
Unpacking the
Printer .
Printer
Mounting Procedures
Optional
Pedestal
Mounting .
Initial
Power Connection
....
Connecting to
Equipment ..
Interfacing to RS - 232 Equipment
Interfacing to 8 - Bit Parallel Interface .
PROGRAMMER'S GUIDE
Receiving Characters and Commands
Miscellaneous
Programming
Notes
Using
RUBOUT
.....
Pitch
Parameters
Bold
Text
.....
FORTRAN Users .
TEKTRONIX
4641/4643
PRINTER
COMPARISON
PRINTER
SELF
-
TEST
PRINTOUT
...
@
Page
1-1
1-1
1-1
1-1
1-1
1-2
1-2
1-2
1-2
1-4
2-1
2-1
2-2
2-4
2-4
2-6
2-7
2-8
2-10
2-11
2-12
2-13
2-18
2-20
2-20
2-22
2-25
2-25
2-25
.2-25
2-25
2-25
2-28
.
2-29
2-29
2-31
2-31
2-31
2-34
3-1
3-6
3-6
3-6
3-6
3-6
iii

iv
Figure
1-1
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-14
2-15
2-16
2-17
2-18
2-19
2-20
2-21
2-22
2-23
2-24
2-25
2-26
2-27
2-28
2-29
2-30
2-31
2-32
2-33
2-34
2-35
2-36
2-37
2-38
2-39
2-40
2-41
2-42
2-43
2-44
ILLUSTRATIONS
4643 Printer ...
Front View of Printer ...
Rear View of Printer on Pedestal
Paper
Mechanism
Controls
Forms Alignment Scale .
Control
Panel
......
Auxiliary
Control
Panel
Power Switch ....
ALARM / CLEAR Switch
Auxiliary
Panel .
ON LINE Switch ..
ON LINE Switch .
Power Switch ...
Platen Gap Lever .
Tractor Locks ...
Paper
Tensioner
Form Feed Pins .
Description
Margin Alignment
Paper
Feed
Pins
Tension Check ..
Tractor
Lock ....
Paper Positioning
Platen
Gap
Lever
...
ALARM / CLEAR Switch
Platen Gap Lever ....
Ribbon Cassette Removal
Ribbon Cassette Replacement .
Ribbon Advance Knob ......
Platen Gap Lever ....
Platen Gap Lever ...
Ribbon
Cassette Removal
Print Head Removal .....
Removal of Head ....
Disconnecting the Head Plug
Reconnecting the Head Plug ..
Print
Head
Positioning
......
Print Head Release Buttons .
Locking
Wedge
Check
..
Ribbon Cassette Replacement
Ribbon Tension Check .....
Closing the Platen Gap Lever
Standard Printer Outline Dimensions ..
Outline Dimensions of Printer with
Optional Paper Receptacle .
Pedestal
Assembly
....
Pedestal Installation ..
a
Page
vi
2-2
2-3
2-5
2-5
2-6
2-7
2-8
2-8
2-9
2-9
2-11
2-11
2-13
2-13
2-14
2-14
2-14
2-15
2-15
2-16
2-16
2-17
2-17
2-18
2-18
2-18
2-19
2-19
2-20
2-20
2-21
2-21
2-21
2-22
2-22
2-22
2-23
2-23
2-24
2-24
2-26
2-27
2-29
2-30
4643 PRINTER OPERATOR'S

Table
1-1
1-2
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
3-1
3-2
A - 1
4643
PRINTER OPERATOR'S
TABLES
Description
Instrument Characteristics
Printable
Forms
....
Mechanism Controls
1-2
1-4
2-4
2-4
2-6
2-7
2-5
2-6
.
2-32
50 - Pin Parallel Adapter Cable Connector Pin Assignments .. 2-34
ASCII
Control
Characters
Recognized ...
3-1
3-2
ASCII
Receive
Operations
4641/4643
Feature
Comparison ..
. A - 1
Forms Alignment Scale
Controls and Indicators ...
Auxiliary
Control
Panel
Status Indicator Codes
Logic Levels .......
Serial
Interface Cable Pin
Assignments
....
Page
(
a )

vi
Figure
1-1.4643
Printer
.
th
83
124
245122.161
4643
PRINTER
OPERATOR'S

AHORA
PERINGA
Section 1
SPECIFICATION
The 4643 Printer is a general purpose , medium speed
serial impact printer designed for use as an alphanu
meric
output
device
for
information
processing sys
tems such as the TEKTRONIX 4050 Series Graphic
System . It has a dual column , 14 - wire matrix print head
that combines the speed of a multiple head printer with
the flexibility of a single head printer . The print head
moves horizontally and prints in both directions to
increase print speed . The print head has a life
expectancy
of
more than
300
million characters
and
is
replaceable by
the operator .
" One 4643 Printer Operator's Manual
"
One
package of
standard
printer
paper
One RS - 232 Interface cable .
4643 PRINTER OPERATOR'S
Paper may be loaded from the front , bottom , or rear
( optional ) . Horizontal and vertical alignment guides
allow precise positioning of the paper forms . The
ribbon is housed in an easy to load cassette for quick
replacement by the operator . Other features include
condensed print , paper - out switch , form thickness
control ,
status
display , and built
- in self -
test .
INTRODUCTION
kys
Nedderse
STANDARD ACCESSORIES
When the 4643 printer is received from Tektronix , Inc. ,
verify that all of the standard accessories are in the
package when the printer is unpacked . In addition to
the 4643 , the following items are included :
One ribbon cassette
ACCESSORIES
(
)
WARRANTY SERVICE
If your 4643 Printer should require any service during
the
warranty period
, call your
nearest Tektronix
Service
Center . Only Tektronix service personnel will perform
repair or
maintenance
work
under
terms of
the
Tektronix
, Inc.
warranty
.
OPTIONAL
ACCESSORIES
Tektronix offers the following optional accessories :
Paper
Tray
Mounting
Pedestal
Additional
Ribbons
Service
manual
1-1

SPECIFICATION
STANDARD INTERFACE
The
standard 4643 Printer
comes
equipped with an
RS - 232
serial
interface with
current
loop
capability
.
For additional information , EIA Standard RS - 232 - C may
be obtained from :
ELECTRONICS
INDUSTRIES
ASSOCIATION
Engineering Department
2001 Eye
Street
, N.W.
Washington ,
D.C.
20006
OPTIONAL INTERFACE
The 4643 Option 01 comes equipped with a
Dataproducts Corporation eight - bit parallel interface .
Contact your nearest Tektronix , Inc. Service Center for
details .
Table 1-1 lists environmental and performance charac
teristics for the 4643 Printer .
Item
Input
Power
Requirement
Power
Consumption
Idle
INSTRUMENT CHARACTERISTICS
Printing
Temperature
Operating
Storage
Transit
1-2
Table 1-1
Specification
90 to 136 VAC or
187 to 257
VAC ,
50 or 60 Hz , ±
1
Hz
single
phase
150
watts
maximum
PRINTER CHARACTERISTICS
275
watts
maximum
50 to 100 ° F
( 10 to 38 ° C )
14 to 122 ° F
( -10 to 50 ° C )
-40 to 160 ° F
( -40 to 71 ° C )
BAUD
RATE
The 4643 transmit and receive baud rate is factory
selectable only
. The 4643 Option
02 is for
customer
specified baud
rates . If baud rate
is not
specified on
the customer order the printer will be shipped with a
transmit and receive baud rate of 2400. Therefore , if
the user desires a baud rate other than 2400 , order
Option 02. Baud rate choices are : 110 , 150 , 300 , 600 ,
1200
, 2400 , 4800
and 9600 .
Remarks
Table 1-1
(
cont )
INSTRUMENT
CHARACTERISTICS
Item
Humidity
Operating
Storage
Transit
Printer
Dimensions
Height
Cover Closed
Cover
Open
Width
Depth
Power cord
length
Weight
Net
Shipping
Specification
20 to 80 %
10 to 90 %
98 %
maximum
8.38 in ( 213 mm )
22.48 in ( 571 mm )
26.4
in ( 671 mm )
23.38 in
( 594 mm
)
13.12
ft ( 4 m
)
70
lbs ( 30
kg )
82 lbs (
37.2
kg )
Remarks
Non - condens
ing
10 % per hour
rate of
change
10 % per hour
rate
of
change
4643 PRINTER OPERATOR'S

Item
Printer
on
Pedestal
Height
Weight
Print
Table 1-1 (
cont
)
INSTRUMENT CHARACTERISTICS
Net
Shipping
Characteristics
Character
Rate
Print
Method
Printable
Columns
Pitch
( Horizontal
Spacing )
Standard
Condensed
Wide
Line
Spacing
Standard
Paper
Feed
Step
Slew
Throughput
Full
Line
Short line
Specification
731 mm
78
lbs
(
35.5
kg )
90
lbs
(
40.9
kg )
340
characters
per
second
maxi
mum
Dot matrix , 7 hori
zontal by 7 verti
cal
132 columns
maximum @ 10 CPI
219
columns
max
imum @ 16.7
CPI
10
characters
per
inch ( 25.4
mm )
16.7
characters
per
inch (
25.4
mm
)
5
characters
per
inch
(
25.4
mm
)
(
Obtainable
under
software
control
only )
6
lines per
inch
(
25.4
mm
)
50
milliseconds
max
10 in (
254 mm )
125
lines
per
min
ute
300
lines
per
minute
4643 PRINTER OPERATOR'S
Remarks
Single line
advance
Minimum slew
rate
132 characters
< 40
characters
(
@
Item
Format
Control
Coded on
the
Data
Lines
Paper
Form
Requirements
Width
Length
Table 1-1 (
cont )
INSTRUMENT
CHARACTERISTICS
Weight
Thickness
Environmental
Ribbon
Selection
Guide
Specification
Line
Feed ( LF ) ,
Form Feed ( FF ) ,
Carriage
Return
( CR ) ,
Backspace
( BS ) , Horizontal
Tab ( HT )
Standard fan - fold
ed , edge - punched
3 to 16 in ( 76.2 to
406.4 mm ) overall
The
basic
ma
chine
accommo
dates an 11 -
inch
(
279.4
mm
) fixed
form
length
.
A 12 - inch ( 304.8
mm ) form is
available
as an
option .
The
printer
can
accommodate 11
different
forms
lengths
ranging
from
3
inches
( 76.2 mm ) to
14
inches
(
355.6
mm
) .
10 lb (
38 g / m )
minimum
0.28 in ( 0.71 mm )
maximum
60 ° F (
16 ° C ) ,
at a
relative
humidity
of 40 %
to 60 %
SPECIFICATION
Fabric
ribbon
im
pregnated
with
non - fading ink ,
1/2 inch ( 12.7
mm ) by
120 feet
( 36 m ) , continuous
loop cassette .
Remarks
See
Datapro
ducts manual
for format .
Requires use
of
option plug .
Recommended
operating and
storage
of
forms for best
printing .
Specifically
qualified
for
matrix
printing .
1-3

SPECIFICATION
The
printer
is
capable of
printing on
forms with
as
many
as six
layers . The
duplicate layers
may be
printed
on either carbonless paper or single shot carbon paper .
Other multi - layer forms may be used but should be
tested under user operating conditions to verify proper
paper
handling and print
- out
legibility . The
recom
mended storage environment of the paper forms is
60 ° F ( 42 ° C ) to 80 ° F ( 62 ° C ) at about 40 to 60 % relative
humidity .
NOTE
The heaviest weight layer should be the last page
of
a
multiple -
layer
form and
should be
located
farthest from the print head when the form is
inserted
into the
printer .
Table
1-2 lists
the
recommended form
thickness
and
paper
weights
. Lower
paper
weight
forms
may
be
used
in
all
cases as
long
as
the
paper
weight is
above 10
pounds ( 37
grams
per
square meter
) for any
individual
part
.
No.
of
Layers
1
2
3
4
5
6
1
100 ( 163 )
20 ( 75 )
20 ( 75 )
15 ( 56 )
15 ( 56 )
15
( 56 )
1-4
PRINTABLE
FORMS
2
100 ( 163 )
15 ( 56 )
15 ( 56 )
15 ( 56 )
12
( 45 )
Form
Layer
Locationa
3
100
( 163 )
15 ( 56 )
15 ( 56 )
12
( 45 )
4
100 ( 163 )
15 (
56
)
12
( 45 )
avalues given in
pounds (
grams per
square meter ) .
Values given in inches ( millimeters ) .
CValue given in inches ( millimeters ) for 8 lb ( 19 gsm ) Single Shot Carbon .
The first column of Table 1-2 is labeled " No. of Layers " ,
and the numbers 1 through 6 represent the number of
layers to a form . The " Form Layer Location " heading is
divided into six columns , each column corresponding
to
the page
number of a
multiple - layer form
. For
example ,
Column 1 of
" Form
Layer Location
" repre
sents the first part , or original copy , and is the copy
closest to the print head after the form has been
inserted into the printer and is ready for print .
The
figures in each
of the six
" Form
Layer
Location "
columns are
suggested
paper
weights for
each form
part , expressed in pounds and grams per square meter
(
gsm ) .
Suggested total form
thickness
is given
in
inches and millimeters .
Example : For a carbonless three - layer paper form ,
Table 1-2 suggests the following weights :
Table
1-2
PRINTABLE FORMS
Layer 1
( in "
Form Layer
Location
" Column
1 ) -
20
(
75 )
5
Layer 2 ( in
" Form
Layer
Location "
Column 2 ) .
15 ( 56 )
Layer 3 ( in
" Form
Layer Location
" Column 3
)
100 (
163 )
1
20 ( 75 )
12 ( 45 )
6
20
( 75 )
Form Thickness
-
Carbonless Paperb Carbon Paper
.0070 ( 17 )
.0130
( 33 )
.0180
( 46 )
.0240 ( 61 )
.0220 ( 56 )
.0240 ( 61 )
.0070
( 17 )
.0110 ( 28 )
.0140
( 36 )
.0175 ( 44 )
0170 ( 43 )
.0185 ( 47
)
The 100 pounds ( 163 grams per square meter ) is the weight for tab card
stock
, based upon
paper dimensions
of 24 " x 36 " per 500
sheets . The total
thickness
of all three
example parts should
be 0.014 inches ( 0.36
millime
ters ) , as shown in the " Form Thickness " column of Table 1-2 .
4643
PRINTER OPERATOR'S

Section 2
OPERATING
INSTRUCTIONS
4643
PRINTER
OPERATOR'S
PREPARATION
This
section
contains
information to
assist in the
operation of the
printer
. A
pictorial
guide
is
included
to
describe
paper
loading
controls
,
paper
alignment
aids
,
controls
and
indicators ,
ribbon
replacement ,
and
print
head
replacement
.
Information
is
also
supplied con
cerning
unpacking ,
space
requirements
,
mounting
pro
cedures
,
and
interface
connection
types .
Before
unpacking ,
setting up
,
and
starting to
operate
the
4643 , it is
recommended
that
you
read this
operator's
manual
for the
4643
Printer carefully
,
parti
cularly the
instructions
for
unpacking and
installation ,
ribbon
installation
,
paper
loading
,
and
the
power -
up
and
self test
procedures
.
Read
and
do
each
of
the
steps
listed to
check
the
operation of
your
printer
as a
stand
-
alone
device .
Then
connect the
printer to
your
system and
test
its
operation as a
part
of the
complete
system .
INITIAL
POWER CONNECTION
Verify
that
the
available
power
is
the
same
as
the
power nameplate located on the back of the printer .
Also
verify
that the
power cord , plug
, and fuse
supplied
with
the
printer
match the
specified
power
indicated on
the
power
nameplate
.
WARNING
Refer all
voltage changes and
internal strap
changes to qualified personnel .
2-1

OPERATING INSTRUCTIONS
Figures 2-1
and 2-2 show
the
controls and other
items
of interest to the printer operator . Explanations of the
controls are provided in the following .
2-2
LOCATION OF
OPTIONAL
VFU
POWER
SWITCH /
INDICATOR
VERTICAL
ADJUST
RIBBON
CASSETTE
FRONT
PAPER
LOADING
PORT
DOOR
CONTROLS
PRINT
HEAD
TRACTORS
BOTTOM
PAPER
LOADING
PORT
(
UNDERNEATH )
245122.162
Figure 2-1
. Front
View
of
Printer .
AUXILIARY
CONTROL
PANEL
TOP
COVER
CONTROL
PANEL
4643
PRINTER OPERATOR'S

INTERFACE
CONNECTOR
PEDESTAL
( OPTIONAL )
4643 PRINTER OPERATOR'S
MAIN
POWER
FUSE
(
a )
245057.102
Figure 2-2 .
Rear View of
Printer
on
Pedestal
.
AC POWER
CABLE
OPERATING
INSTRUCTIONS
REAR
PAPER
LOADING
PORT
(
OPTIONAL
)
2-3

OPERATING INSTRUCTIONS
PAPER MECHANISM CONTROLS
Figure 2-3 shows the paper mechanism controls , which
are further described in Table 2-1 .
Control
Pressure
plate
Tractor locks
Forms thickness
control
Platen gap lever
Vertical
paper
adjust
knob
2-4
Table 2-1
MECHANISM CONTROLS
Function
The
pressure plates
may be
opened
and closed to allow the loading of
paper
.
Rotating the
tractor
locks downward
allows the tractor to be moved
horizontally
to
achieve a
horizontal
paper
alignment
or to
accommodate
various
paper
widths .
Moving this lever controls the platen
gap ,
thus
allowing
printing
of
forms of
one to six layers .
Moving this lever away from the
platen releases the paper tensioner
and increases the distance between
the print head and the platen to
facilitate paper loading , ribbon
replacement
, and
print head
replacement .
While applying a downward pressure ,
this knob may be rotated and the
paper
manually
moved
to achieve
vertical
paper
registration
.
(
8
)
FORMS
ALIGNMENT
SCALE
Figure 2-4
shows the forms
alignment
scale and
paper
out
sensor . Table
2-2
provides a
description
of the
scale's
use .
Table
2-2
FORMS
ALIGNMENT
SCALE
Item
Forms
alignment
scale
Paper out sensor
Platen
gap lever
( not
shown
in Figure
2-2 )
Function
Allows the operator to visually align
paper
both
vertically and
horizontally
to
get proper
print - to -
form
registra
tion
.
The two horizontal lines represent
the
line
spacing
when the
printer
is
printing at
six lines
per inch .
The
bottom horizontal line indicates the
vertical
position of the
top of the
characters of the print row .
The
vertical lines
are 1 / 10 - inch apart
and indicate the horizontal margin .
Placing the edge of the paper directly
over the
center
heavy line
will
provide a 1 /
2 - inch
margin .
Detects the
end of
the last
form
.
Prevents
printer
operation
when the
paper
supply
is
exhausted
.
Senses when the platen gap lever is
not
closed . The
STATUS
indicator
displays
"
04 " .
4643 PRINTER OPERATOR'S

FORMS
THICKNESS
CONTROL
FORMS
ALIGNMENT
SCALE
1/2 INCH
MARGIN
1/10
INCH
SPACING
MARKS
4643 PRINTER OPERATOR'S
PLATEN
GAP
LEVER
VERTICAL
ADJUST
Figure 2-3 .
Paper Mechanism
Controls .
TOP OF
CHARACTERS
Figure 2-4 . Forms Alignment Scale .
NOVONONO
OPERATING INSTRUCTIONS
245057 106
PRESSURE
PLATE
TRACTOR
LOCK
245122.146
PAPER LOW
INTERLOCK
SWITCH
2-5

OPERATING INSTRUCTIONS
CONTROL
PANEL
Figure 2-5
shows the
4643
control
panel .
Table 2-3
lists
the
functions of the
controls
and
indicators .
Table
2-3
CONTROLS
AND
INDICATORS
Controls
and
Indicators
ON LINE
switch / indicator
ALARM /
CLEAR
switch /
indicator
PAPER
STEP
switch
TOP
OF FORM
switch
2-6
Function
Illuminates when the printer is on
line .
Pressing
the
switch
will
alter
nately
place the
printer on
line and
off line .
Illuminates
when a
fault is
detected
.
Pressing
the ALARM
/
CLEAR
switch
clears the printer logic .
When actuated this momentary
switch
advances
the paper one line
if
the
printer is in
an off
line condition
.
If
the
switch is pressed and
held , it
will continue to advance paper until
released
. This
switch is
disabled
when the printer is on line .
When actuated this momentary
switch advances the paper to the
top
- of -
form if the
printer
is in
an off
line condition . If the switch is
pressed
and
held
, it
will continue
to
advance
paper
until
it is
released .
This
switch is
disabled
when
the
printer
is on
line .
ON
LINE
PAPER
STEP
ALARM
CLEAR
TOP
OF
FORM
245057.103
Figure
2-5 .
Control
Panel .
4643
PRINTER
OPERATOR'S