Xerox HyTerm 1620, HyTerm 1610 User Manual
XEROX
82332
Rev. G
Diablo Systems Incorporated
A Xerox Company
HyTerm
Communications
Model
Product
1610/1620
Description
Terminal
December,
1978
©
Copyright
Diablo Systems, I
Hayward,
All
rights reserved
1976,1977,1978
California
nco
(A
Xerox
94545
Company)
"Diablo,"
"HyTerm"
"HyType,"
is
a trademark
and
"Xerox"
of
Diablo Systems, Inc.
are registered trademarks
of
Xerox
Corporation.
This
manual
interface,
1620
HyTerm
This
revision
the
information
8-20-76,
issued
Addendum
Comments
use
Diablo
ments
incorporate
delivered.
subject
on
the
to
Addendum
Reader
Systems,
to
provides
and
install
Communications
supercedes
contained
9-30-77,
F2,
on
products
Features
change
issued
this
Comment
I nc., reserves
such
improvements
without
Addendum
manual
and
PREFACE
the
information
the
Diablo
all
previous
C1,
issued
on
4-25-78.
and
Form
without
specifications
notice.
Terminals.
in
Addendum
on
F 1, issued
its use
in
the
incurring
in
necessary
Model
revisions,
5-26-77,
are
the
back
right
to
any
units
previously
described
to
1610
and
and
A 1, issued
Addendum
on
4-15-78,
welcome.
of
this
make
obligation
herein
operate,
Model
includes
on
D1,
and
Please
manual.
improve-
sold
are
to
or
HOW
This
manual
will
need
provides
read
by
terminal.
meant
provides
of
the
computer
Section 4 contains
anyone
terminal.
designed
desiring
should
Publication
is
made
to
read
a basic i.-.troduction
anyone
Section 2 contains
primarily
more
information
terminal,
programmer
planning
for
technical
refer
to
Section 5 contains
the
installer
to
the
No.
82333.
TO
USE
THIS
up
of
five
sections.
the
entire
manual.
to
the
needing
for
and
connect a modem
information
Model
the
is
written
or
detailed
and
1610/1620
more
operating
machine
on
the
network
interface
installation
the
on
MANUAL
The
HyTerm,
information
instructions,
operator.
functional
primarily
designer
data,
or
other
installation
servicing
Maintenance
Not
every
first
and
should
about
Section
characteristics
with
the
in
needed
device
procedures;
planner.
the
terminal
Manual,
reader
section
be
the
and
host
mind.
by
to
the
it
Those
is
3
is
The
Diablo
Communications
materials
shipment.
should
All
repair
possible service.
and
be
directed
requests
depot
Any
for
in
WARRANTY
Model
workmanship
Terminals
questions
to
your
repairs
your
area.
1610
should
and
are
for
with
Diablo
This
Model
warranted
90
days
respect
sales
representative.
be
directed
will assure
1620
against
from
to
the
to
you
of
HyTerm
defects
the
date
warranty
the
the
in
of
Diablo
fastest
ii
TABLE
OF
CONTENTS
PARAGRAPH
SECTION' -GENERAL
1.1
Introduction
1.2 Main
1.3
1.4
1.5
1.6
1.7 Related
Features.
1.2.1
1.2.2
1.2.3
1.2.4
Specifications.
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.3.7
Functional
1.4.1
1.4.2
1.4.3
Optional
Accessories.
.
Printer
Switch
Keyboard.
Commun
Size...
Weight..
Power
Environ mental
Printer.
Interface
Color..
Features.
Control
Escape Sequences
Control
Features
. .
Documents
DESCRIPTION
Panels
ications Capability
Requirements
Requirements.
Codes.
Panel
and
Front
Panel
Switches
PAGE
'·1
1·1
1·1
1·1
'·2
1·2
1·2
1·2
1·2
1·2
1·2
1·2
1·3
1·3
1·3
1·3
1·3
1·4
1·4
1·4
1-5
SECTION 2 - OPERATING INSTRUCTIONS
2.1
Introduction
2.2
Switches, Indicators,
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
Operating
Basic
2.3
2.3.1
2.3.2
2.3.3
. . .
and
Controls
Front
Panel
Control Pane
Keyboard
2:2.3.1
2.2.3.2
2.2.3.3
Printer
I mpression
Cover-Open Switch
Paper-Out-Switch
Turn-On..
Loading
2.3.2.1
2.3.2.2
Establishing
2.3.3.1 Originating a Data Link
2.3.3.2
2.3.3.3
2.3.3.4
I.
.
.
Alphameric
Numeric
Control Section .
Controls
Control
Procedures
Paper.
Top-Feed
Bottom-Feed
the
Originating a Data Link
Originate-Only Modems
Answering a Data Link Call
Section
Section
.
Switch
.
Printer.
Printer
Data
Communications
Link.
with
an
Acoustic
with
a Bell-Type Modem
Coupler
2·1
2·1
2·1
2·1
2·5
2·5
2·5
2·7
2·7
2·8
2·8
2-9
2·9
2·9
2·9
2·9
2·10
2·11
2·11
2·12
2-12
2·12
iii
SECTION 2 -
OPERATING
INSTRUCTIONS
(Continued)
2.3.4
Error Recovery
2.3.5 Keyboard Control
2.3.5.1 Margins
2.3.5.2 Carriage Movement
2.3.5.3
Paper Movement
2.3.5.4 Ribbon Control .
2.4
Operator Duties . . . . . . .
2.4.1 Replacing Ribbon Cartridge
2.4.2 Changing Printwheels
2.4.3
Changing
2.4.3.1
Platens.
Platen Removal .
2.4.3.2 Standard Platen (Friction-Feed) Installation
2.4.3.3 Pin-Feed Platen Installation
2.4.4
SECTION 3 -
3.1
Introduction
Forms
Tractor
FUNCTIONAL
. .
3.1.1 Local/Remote
3.2 Communications Princi
3.3 Reset/In itialization . . .
3.4 Character Generation
3.4.1 Two- and Three-Character Sequences
Printing Format . . . .
3.5
3.5.1
Definition
of
3.5.2 Standard Formats
3.5.3 Optional Formats (Variable Indexing)
3.5.3.1 Variable
3.5.3.2 Variable
Control Functions
3.6
3.6.1 Control
of
3.6.1.1 Red/Black
3.6.1.2 Upper
3.6.2
Control
3.6.2.1
of
Space
3.6.2.2 Backspace
3.6.2.3 Carriage Return (CR)
3.6.2.4 Horizontal Tabbing (HT,
3.6.2.5 Graphics (ESC
3.6.2.6 Forward/Backward
3.6.2.7 Margins (ESC 9,
3.6.3 Control
of
3.6.3.1 Line
3.6.3.2
Form
3.6.3.3 Graphics
3.6.3.4 Vertical Tabbing
3.6.4
Other
Control Functions . . . .
....
of
Features. .
(ESC
9,
ESC
0)
. . .
DESCRIPTION
..
pies
Terms.
. . .
HMI
VMI
Printing .
Printing (ESC
Case
On
Iy.
.
A/ESC
B)
.
Carriage Movement
(SP).
. .
(8S)
ESC
1,
ESC
2,
3,
ESC
4) . .
Print (ESC 5/ESC
ESC
0) . . . . .
Platen (Paper) Movement . . . .
Feeds
(LF,
ESC
LF,
ESC
U,
ESC
Feed
(FF)
. . . .
(ESC
3,
ESC
4) .
(ESC
VT)
6)
D)
ESC
HT)
2-12
2-13
2-14
2-14
2-14
2-14
2-15
2-15
2-17
2-19
2-20
2-20
2-21
2-21
3-1
3-1
3-1
3-1
3-1
3-1
3-3
3-3
3-3
3-3
3-4
3-4
3-4
3-4
3-4
3-4
3-5
3-5
3-5
3-5
3-5
3-6
3-6
3-7
3-7
3-7
3-7
3-7
3-7
3-8
iv
SECTION 3 -
FUNCTIONAL
DESCRIPTION (Continued)
3.7
Motion
SECTION 4 -
4.1
Introduction
4.2
Modem
4.3
Functional
4.4
Connection
Minimization
INTERFACE
4.5 Signal Levels .
4.6
I
nterface
4.7 Data
4.8
4.9
4.10
SECTION 5 -
5.1
5.2
5.3
Format
Timing
Circuit
Elements
4.9.1
4.9.2
Current -Loop
INSTALLATION
Introduction
Preliminary
Unpacking
5.4 System
5.4.1
5.4.2
5.4.3
5.4.4
5.5
Installation
5.5.1
5.5.2
5.5.3
5.6
Repackaging
3.6.4.1 Sound
Audible
3.6.4.2 Preventing
. .
Compatibility
Description.
to
the
Modem.
Signal s
.
. .
Input
Level
Converter
Output
Requirements
Operating
Space Requ irements .
Weight
Power
Initial
Jumper
5.5.2.1 1200
5.5.2.2
EIA
Level
Converter
Interface
.
Inspection
and
Inspection.
.
Environment.
. .
Requirements
Procedures.
Start-up
Cable Assembly
for
and
Installation/Removal.
Baud.
Ground
Shi
pment
Di sconnect .
Alarm
Buffer
Overrun
Checkout.
Connection
(BEL)
and
.
(ACK,
Remote
ETX,
Checkout.
NUL,
DEL)
3-8
3-8
3-8
4-1
4-1
4-1
4-3
4-3
4-3
4-4
4-5
4-5
4-5
4-6
4-6
5-1
5·1
5·1
5-1
5-1
5-1
5-1
5-1
5-1
5-3
5-3
5-3
5-5
5-5
5-5
Appendix
Appendix
A B -
ASCII
Code Chart
Keyboard
Layouts
and Code Charts
A-1
B-O
v
LIST
OF
ILLUSTRATIONS
FIGURE
1-1
2-1
2-2
2-3
2-4
2-5
2-6
2-6a
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-13a
2-14
2-15
2-16
2-17
2-18
2-19
2-20
3-1
4-1
4-2
4-3
4-4
4-5
4-6
4-7
5-1
5-2
5-3
5-4
HyTerm
Switches,
Front
Control
46-Key
Printer
Cover-Open
Paper-Out
Ribbon
Ribbon
Ribbon
Carriage
Printwheel
Printwheel
Platen
Platen
Pin-Feed
Plastic Clip
Forms
Forms
Forms
Forms
Forms
Printing
Interface
Interface
Input
Data
Input
Output
Current
Top
HPRO
Jumper
Current
Communications
Indicators,
Panel 2-1
Panel .
Typewriter
Controls
and I mpression
Switch
Clamps
Advance
Cartridge
Tilted
Skirt
Removal
Platen
Tractor
Tractor
Tractor
Tractor
Tractor
Format
Functional
Connector.
Line
Format
Converter
Converter
Loop
Cover
Board
Location
Loop
Clip
Knob
Placement
for
Printwheel
Installation
.
Removal
Installation
and
Stud
and
and
and
Installed
Factors
Switching
on
Interface
IC
IC
Cable
Release Lever
Location
Connections
Terminal
and
Controls
Pairing
Keyboard
Control
Access
Platen
Adjust
Paper
Release Lever
Paper
Release Lever
Block Diagram
Levels
Pinout
.
Switches
Lever
(Tension
(Tension
Removed)
Removed)
PAGE
1-0
2-0
2-3
2-4
2-6
2-8
2-9
2-15
2-16
2-16
2-17
2-18
2-18
2-19
2-19
2-20
2-21
2-22
2-22
2-23
2-23
2-24
3-2
4-1
4-2
4-3
4-4
4-5
4-6
4-6
5-2
5-2
5-4
5-6
vi
LIST
OF
TABLES
TABLE
2-1
2-2
2-3
3-1
3-2
3-3
4-1
4·2
4-3
5-1
Front
Panel
Switches
Control
Error
Standard
Deci mal Values
Control
I
nterface
Interface
Interface·
Jumper/Shorting
Panel.
Recovery
Formats
Functions
Signals .
Signal
Data
and
Indicators
. .
for
ASCII
Character
. . . . .
Terminology.
Timing . . .
Plug
Location
PAGE
2-2
2-3
2-13
3-3
3-4
3-5
4-2
4-3
4-5
5-5
vii
MODEL 1610
Figure 1-1. HyTerm Communications Terminal
MODEL 1620
1-0
SECTION 1
GENERAL
DESCRIPTION
1.1
INTRODUCTION
Diablo
printers and microelectronics
communications
of
the smallest and
one
today.
from a distant
Standard RS-232-C interface. I n local
keyboard/printer
correspondence and
munications
of
applications: in
a
computer
time-sharing
etc.
The
microprocessor-driven electronics,
tive
provides
data
is
a receive-only (RO) version,
keyboard send/receive
contain
pletely
inherent
versatility, plus a
optional
meet the most demanding data processing situations.
Systems
terminal,
of
the
most
economical and versatile
The
HyTerm
device over a
can
terminal,
console
network,
HyTerm
yet
functional
communications
an
self-contained table
forms-handling
comprises a
exactly
speed and
the
integral
has
combined
most
convenient
transmits data
also
other
the
HyTerm
terminal-to-terminal
or
output
as
a console in a
package. The
amount
application.
(KSR)
power
adaptability,
full
complement
equipment,
the latest
to
produce the
Figure 1-1. The
terminals
communication
serve
as a document
secretarial
can
printer,
Diablo
supply,
contained
HyTerm's
of
capability
The
while
capability.
top
unit.
and
HyType
enable the
technology
HyTerm
built,
units
to
and receives data
link
via
operation,
writer
functions.
function
communications,
as a terminal
text-editing
HyTerm
the Model
making
The
the
of
As a com-
in a
II
printer
in
an
modular
needed
Model
Both
them
HyType
microprocessor's
type
styles and
HyTerm
HyTerm
is
one
yet
it
available
an
EIA
the
for
variety
in a
system,
and
attracdesign
in
any
1610
1620
has
models
a com-
II's
in
as
to
difficult-to-modify,
logic. This makes several
"free,"
nothing"
complete
is
maintained
external commands can take advantage
graphics
tabbing, its non-left-margin returns, and its backward
printing
which
even
flexibility
in
capability,
capability.
space consuming,
can
be
used when desired,
if
they
are
of
the
interface design
its high-speed
functional
not
the
HyType
utilized.
so
horizontal
hard-wired
features available
but
In
" mechanism
that
of
random
which
addition,
appropriate
the
HyType's
and vertical
"cost
the
is
1.2.1 Printer
The
HyType
serviceability,
complemented
remarkable
parts, the
modularity
factors. Interchangeable daisy-wheel
printing
characters per inch. Rapid carriage and paper
provide high-speed
HyType
characters per second (cps), even
at
graphics capabil
and vertical resolution
in 1
the choice
only
/120"
of
II
10
II's
innate qualities - its speed,
reliability,
by
the microprocessor
printing
straightforward
of
95
is
to
increments
of
printing
system. The small
the plug-in
different
horizontal
capable
30
cps
ity
of
by
provides
is
format.
and excellent
control
mechanical design, and
circuit
boards
type
characters
printing
the
communications
horizontal
to
1
/48",
available
at
and vertical
at a nominal
though
resolution
but
horizontal
to
provide
print
quality
number
are
all
fonts
either
tabbing.
it
is
usually
wide
versatility,
- are
to
provide a
of
moving
the
contributing
provide
10
or
movement
The
speed
of
45
driven
link.
Normal
to
1/60"
movement
variety
12
in
1.2
MAIN
The
for I nformation
Code
ible
with
this
code.
of
all 94
to
5 copies.
up
113A
modems and
nous modems
tions
set
(EIA).
The
facets
electronic
plug
into
the design
microprocessor
reliability,
pre-programmed Read-Only
FEATURES
HyTerm
most
printable
HyTerm
of
communicates using the U.S.A. Standard
other
It
provides
It
employing
forth
by
represents
terminal
components
the
HyType " printer.
of
the
control
and speed.
I nterchange
data
medium
ASCII
is
compatible
many
the
design.
are
HyType
characters
other
the RS-232-C interface specifica-
Electron
to
Functional
(ASCII),
communications
speed,
high-quality
on
an
original
with
Bell
110-
to
300-baud asynchro-
ic I ndustries Association
an
innovative approach
For
ease
of
maintenance, all
contained
II
provide
Memory
on
circuit
The capabilities
have
been enhanced
unmatched
capabilities reside
(ROM),
and
is
devices
type
boards
inherent
versatility,
and
compatutilizing
printing
form
103A
to
by
not
and
and
all
that
in
the
in
in
Microprocessor
the capacity
return
specified
tab
stop), and
a
resolves a sequence
commands
head via the shortest path
result
from
these factors
for
time),
print
column
to
one single operation
performing
contribute
1.2.2 Switch
Front
panel switches provide
control
SCROLL,
come
alarm buzzer. A
of
duplex,
1-1
of
FORM
and POWER.
indicators
baud rate,
form
length, and terminal
control
backward
absolute
"motion
of
the preceding features adds
printing
tabbing
or
line
minimization."
of
carriage- and paper-movement
each individual
to
increased
without
to
the
(tabbing
Panels
FEED,
for
ER ROR and POWER, and
control
auto
SET
With
panel
line feed,
these
is
also
parity,
reset/initialization.
(elim
inating
having previously set
This
which
moves the
position
operation.
throughput.
for
error
TOF
(Top
front
provided
spacing,
carriage
directly
latter
which
RESET, and
of
panel switches
an
for
selection
half/full
to
feature
print
would
All
of
Form),
audible
a
1.2.3 Keyboard
Keyboard
pairing
arrays, all
tional
e.g.,
Local/Remote,
All
n-key rollover, which
to
the
corresponding
board
keys are
accommodations
or
logical
with
features
keyboards
microprocessor
data
is
operated.
bit
an
are
utilize highly-reliable
keys
ever
lost, regardless
pairing
auxiliary
provided
Upper
Case
means
in
the
were
depressed.
include
arrays,
ten-key
by
Only,
all
key
same
keyboard
Break.
signals are
sequence
Thus
of
the
1.2.4 Communications Capability
The
Hyterm
network
modem.
Time
Division
Multiplexed
modem,
interface
HyTerm
mode
at
into
10, 15,
Each incoming
and a parity
Received
capacity
"pad"
or
ETX/
ACK
program,
should
the
commands
printer.
transmit
sion/reception
the
45
computer
rate
prevent
A
strappable
HyType
cps,
and
is
used,
data
Outgoing
can be
through
An
providing
characteristics
communicates
rates
characters
of
time-fill
buffer.
console
optional
(FDM)
of
or
bit
158
protocol
which
data
or
at
II
printer
makes
the
overrun.
a Bell
Multiplexed
equipment
the
110, 150,
30
characters
character
is
generated
characters,
characters
can be used
contain
other
characters
option
1200
the
or
ETX/ACK
interfaced
type
current
multiplexing
as
in
can
pass
through
is
also
large
codes
enables
baud
to
operate
HyTerm
local I/O device. When
103Aor
loop
(TDM)
may
the
above-listed
either
or
300
per
be
checked
for
each
thus
in
the
built
to
numbers
that
pass
full-duplex
(120
especially
protocol
to a data
interface
or
equipment
half-duplex
baud,
second
transmitted
an
negating
received
into
guarantee
might
through
cps).
at
its full
should
choice
of
typewriter
or
several
numeric
keyswitches
speed
113A
Frequency
be
used in
input
the
of
This
suited
European
pad.
function
transferred
in
which
no
useful key-
at
which
communications
(or
equivalent)
is
also available.
place
has
modems.
or
full-duplex
which
(cps) respectively.
for
proper
character.
buffer
the
data.
microprocessor
no
paper
movement
slow
down
an
8-character
data
transmis-
mode
rated
speed
for
the
1200
be
employed
Addi-
keys,
with
their
the
Division
of
the
same
The
translate
parity,
having a
need
for
A simple
data
loss
the
enables
of
use as a
baud
to
1.3.3 Power Requirements
Two
power
requires
operates
approximately
cord
95
on
is
provided.
supplies are available.
to
130
Vac,
at
190
to
260
Vac,
200
watts. A 12-foot
at
60
50
The
Hz.
Hz.
domestic
The
export
Both
units
(3.7-meterl
version
version
consume
power
1.3.4 Environmental Requirements
Operating
Temperature
(Degrees
Celsius)
Relative
Range
Maximum
temperature,
condensati
a
Altitude
Range MIN
Fahrenheit/
Humidity
(at
80°
F.
wet
no
on)
Range
bulb
MAX
MIN
MAX
MIN
MAX
45/7
95/35
10%
80%
Sea Level
10,000
3048m
ft/
Storage
-20/-29
135/57
0%
90%
Level
Sea
25,000
7620m
ft/
1.3.5 Printer
(1)
Print
(2)
(3)
(4)
(5)
Speed:
average
used.
Character
printwheel
Print
line:
132
158
(Variable spacing
Paper
width:
Paper
thickness
(0.69
mm),
up
to
text,
actual
set:
95
characters,
selected.
13.2
inches
columns @ 10
columns @ 12
15
inches (38.1
(one
manual
selection.
45
characters
rate
dependent
characters
characters
capability
or
more
variable
standard)
cm)
maximum.
copies):
per
upon
depending
per
inch
per inch
up
second
baud
to
.027"
on
rate
upon
1.3 SPECIFICATIONS
1.3.1 Size
Height
Width
Depth
(KSR)
Dep'th (RO)
8.25
23.25
20.3
15.7
in.
in.
in.
in.
1.3.2 Weight
48
Ibs.
(21.8
kg),
including
covers
and
21.0
59.1
51.6cm
39.9
power
cm
cm
cm
supply.
1-2
(6) Carriage
(7)
Horizontal
addressed
(8) Vertical
line.
(9) Line
feed:
line spacing
capability
return
time:
tabulation:
print
position.
tabulation:
either
is
6 lines
is
standard).
300
ms
up
or
direction,
per
maximum.
right
or
left,
direct
down,
direct
to
addressed
full
or
half line.
inch (variable line spacing
Normal
to
(10) Paper feed speed: 4 inches per second, plus 50
settling delay. Paper is
from
the back, like a
(11)
option
Plotting
vertical,
is
available.
resolution:
48
positions per inch.
normally
typewriter,
horizontal,
fed
into
but
a bottom-feed
60
positions per
the
printer
inch;
ms
1.4.1 Control
(1
)
BS
(2)
CR
(3)
HT
Codes
Backspace
Carriage Return
Horizontal
Tab (to preset tab stop)
(12) Paper-out sensor: stops
form
when
supply
is
depleted.
HyTerm
1.3.6 Interface
Both
models communicate using ASCII code, and
contain
HyTerm
ing characteristics:
(1)
(2)
(3)
(4)
(5) Framing
(6) Baud rate:
a 158-character receive
contains
The data communications interface
Electrically compatible
C.C.I.T.T. V-24.
Functionally
103F,
equipment.
Full/Half
Even/odd/mark
pable.
an
8-character
compatible
103G, 103H,
Duplex.
parity
error
and overrun
110, 150,
113A,
generation and
or
buffer.
send
with
with
error
300
and signals operator
The Model
buffer.
exhibits
EIA
Bell
and
detection.
standard;
the
follow-
RS-232-C and
103A,
TDM
error
103E,
or
FDM
detection.
1200
strap-
1620
(4)
(5)
(6)
(7)
(8)
1.4.2
(1
)
(2)
(3)
ESC
(4)
ESC4
(5)
ESC
(6)
ESC
(7)
ESC
(8)
ESC
LF
FF
ETX
BEL
SP
Escape
ESC
ESC2
3
5
6
8
9
Line
Feed
Form
Feed
Send
ACK
Sound
Audible
Space
Alarm
Sequences
1
Set horizontal tab stop
Clear all tab stops
Graphics on
Graphics
Forward
Backward
Clear individual tab stop
Set
left
off
(CR also clears)
Print
on
Print
margin
on (CR also clears)
(7)
(8)
ETX/ACK
Ten-foot
sion
protocol
modem cable standard.
cables available.
capability
standard.
Additional
1.3.7 Color
Standard color
textured
1.4
program make
featu
available on
utilized
control
character
featu
per-inch spacing, etc.,
very
FUNCTIONAL
The microprocessor control and ROM resident micro-
res
which
by
code
followed
res,
such
is
Diablo textured warm black. Diablo
light
warm
gray
is
FEATURES
available in the
are
either
extra-cost
other
terminals. Most
sending the
or
an
as
automatic line feed, 10
HyTerm
"escape" sequence,
by
another ASCII character.
are
locally
also available.
HyTerm
controlled
several
options
of
these
either a single ASCII
or
functions
which
is
or
12
characters-
via switches.
functional
not
the
exten-
even
are
ESC
Other
1-3
(9)
(10)
(11
(12)
(13)
(14)
(15)
(16)
(17)
(18)
)
ESCO
ESCA
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
B
D
U
HT
VT
LF
RS
US
(n)
(n)
(n)
(n)
right
Set
Print
Print
Negative
Half-line feed
Absolute
(n) .
Absolute vertical
Negative line feed
Define
x
1/48
Define
n-1 x 1/120
margin
in red
in black
half-line feed
horizontal
vertical spacing equal
inch.
horizontal
inch.
tab
to
position
tab
to
line (n)
spacing equal
to
n-l
to
1.4.3 Control
Panel
and
Front
Panel
Switches
(4) Printwheels
The
following features can be selected locally via
control
(1) Half/Full Duplex
(2) Parity (even,
(3)
(4) Spacing (10 or 12 characters per inch)
(5) Speed (baud rate),
(6)
(7)
panel switches:
(1) Form Feed
(2)
(3) Error lamp
(4) Error Reset switch
(5) Power switch and indicator
(6) Scroll
1.5
(1) Pin-feed platen
(2) Current-loop interface
(3) EIA
(4) Special keyboards (see Appendix
(5)
panel switches.
odd
or
"mark")
Auto
Line Feed
except
Form
Length
Clear (Reset)
following features are available
The
Set
Top
of
Form
OPTIONAL
extension
Bottom
requires forms
FEATURES
cable
forms-feed (includes
tractor)
1200
baud
through
B)
paper-out
the
front
sensing;
the
*Courier
*Pica
*Elite 12
Manifold 10
Courier Legal 10
Prestige Elite Legal
Dual Gothic
*Courier
Courier Legal
Pica Legal
French Prestige Cubic
German Pica
Scandia Elite
Kana
Kana
British Pica
UK Courier
APL10
General Scientific
Symbol
OCR A
OCR B
OCR B Kana
Russian Cubic
Norsk Pica
*Forms
Printwheels above marked
compatible
bit
pairing keyboards.
with certain
details.
but
corresponding
betic
differences will be
yqur
printwheel.
Diablo
refer
type
with
Any
printwheel can be used
some printwheel characters will differ from
and numeric characters will be
Diablo representative
is
continually
to
publication
samples
of
10
10
72
Gothic
Gothic
10
Gothic
the
46-key
other
keyboards; refer
keyboard
in
some
essos-XX
all
currently
12
Legal
12
10A
10A
10
12
Elite
12
Pica
10
10
10
10
10
10
10
S-10
with
an asterisk (*) are 100%
typewriter
Other
printwheels are
legends.
of
the
for
making new printwheels available;
for
available printwheels.
pairing
to
with
In
most
the
special symbols.
details
on
the
latest listing
and
47-key
compatible
Appendix B for
a given keyboard,
the
cases,
the
alpha-
same, and
any
the
Contact
particular
and
for
1.6 ACCESSORIES
(1) Film ribbon, multi-strike
(2) Red/black
(3) Printed circuit
cloth
ribbon
board
extender
1-4
1.7
RELATED
(1)
HYTERM
MODEL
June, 1976. Diablo Systems, Inc. Publication No.
82333.
(2)
SERIES 1300 HYTYPE
DESCRIPTION,
Publication
(3) SERIES 1300 HYTYPE II PRINTER PARTS
LOG, June, 1976. Diablo Systems, Inc. Publication
No. 82404.
DOCUMENTS
COMMUNICATIONS
1610/1620,
No. 82402.
MAINTENANCE
II
PRINTER PRODUCT
January, 1976. Diablo Systems, Inc.
TERMINAL,
MANUAL,
CATA-
(6)
"C.C.I.T.T.
Transmission, 1973. The
Telephone Consultative Committee, International
Telecommunication Union, Geneva.
(7)
USA
I
NTE
National Standards Institute, 1430 Broadway, New
York,
(8)
DATA
February, 1967. Engineering Director, Data Communications, American Telephone
Publication 41101.
GREEN
STANDARD
RCHANGE,
N.Y. 10018.
SET
103A
BOOK,"
CODE FOR
USAS X3.4-1977. American
INTERFACE
Volume
International Telegraph
INFORMATION
SPECIFICATION,
and
Telegraph
VIII,
Data
and
Co.
(4) SERIES 1600
LOG, November, 1976. Diablo Systems, Inc. Publ
tion
No. 82334.
(5)
INTERFACE
MENT
MENT
INTERCHANGE.
1969. Engineering Dept.,
201
Eye St. N.W., Washington, D.C. 20006.
HYTERM
BETWEEN
AND
DATA
EMPLOYING
EIA
TERMINAL
DATA
TERMINAL
COMMUNICATION
SERIAL
Standard RS-232-C, August,
Electronic Industries Assn.,
BINARY
PARTS
CATA-
ica-
EQUIPEQUIP-
DATA
(9) 113-TYPE
CATION,
Transmission Services, American
graph
DATA
Co_
Publication 41105.
STATION
October, 1971. Engineering Director,
INTERFACE
Telephone
SPECIFI-
and
Tele-
1-5
PRINTER
ACCESS
COVER
CONTROL
PANEL
FRONT PANEL
Figure 2-1. Switches, Indicators, and Controls
KEYBOARD
2-0
2.1
INTRODUCTION
Only general
section. Specific
HyTerm being used
application being
data
communications
used. However, certain basic
all cases. These
as steps required
Section 3,
tion
and
for
operating
procedures
and
performed
steps
with
Functional
functions
the
network
wi
II
be covered
certain
Description,
not
covered
WARNING
instructions
are
dependent
options
operating
included, as well as
and
the
in which
optional
for
in
this
OPERATING INSTRUCTIONS
are provided in
upon
the
characteristics
the
HyTerm
steps
are
the
same
in
th
is
section,
equipment.
additional informa-
section.
as well
Refer
SECTION 2
this
model
the
of
the
is
in
to
2.2 SWITCHES, INDICATORS,
TROLS
contained
switch panel
side.
inside
2.2.4(6)]
switches are
front
operation.
occurrence
The
more
Others
the
panel,
(Figure 2-1)
frequently
on
the
printer,
which
is
are
contained
printer;
to
expose
adjusted
keyboard,
The
of
an
raise
this panel. Generally,
audible alarm
error.
used
controls
the
keyboard,
just
above
the
on
the
the
printer
before starting
and
printer
is
used mainly
keyboard
control
operation,
controls
AND
and
and
access cover [see
the
are used
to
CON-
indicators are
the
front
on
the
right
panel
located
control
panel
and
during
indicate
the
the
Always
out
carriage. The high-speed
nism
much
and
remotely, a sudden unexpected movement
careful
as
keep hair, fingers,
of
the area
of
faster than an
since
could
when changing ribbons, etc.
around
the
HyType
printing
inflict
injury.
when the access cover is removed,
the
printwheel
printing
/I
printer
ordinary
can be
jewelry,
Be
etc.,
and
mecha-
moves
typewriter,
initiated
especially
2.2.1 Front
Table
2-1
describes
tained
on
the
front
2.2.2 Control
Table 2-2 descri bes
printer
access cover.
Panel
panel.
Panel
(Figure 2-2)
the
switches
(Figure 2-3)
the
switches located
and
indicators
under
con-
the
Figure
2-2. Front
2-1
Panel
Table 2-1.
Front
Panel Switches and Indicators
ER
ROR
RESET
FORM
SET
TOF
SCROLL
Name
(indicator)
FEED
(Top
of
Form)
Lights
for
any
of
printer
only
Turns
cleared. Resets
operation;
Moves
Operate
the
HyTerm
setting
memory.
With
character
character
on
remains
switch
paper
Print
tractor
not
exhibit
backed
the
(reversible) pin-feed
cover
if
printing
off
error
see
paper
this
first
line. (Make sure
electronics
of
the
this
switch
is
is
printed,
the
same
down
off
defeats
and
when
quality
or
single-cam
designed
some
up
over page
forms
may
open,
is
lamp
errors
Table
up
to
switch
FORM
printed
line. When several
until
setting
may
to
move
waviness
occur.
the
following
check,
attempted.
after
(see
2-2.)
the
top
after
to
the
LENGTH
on,
the
so
that
the
paper
one
second
the
scroll
the
be
affected
(undirectional)
paper
when
boundaries
For
platen
Function
error
out-of-paper.
the
condition
audible
line
of
the
installing
the
SCROLL
form
position.
paper
moves
the
printing
automatically
characters
after
feature.
top
of
form.
if
the
in
the
the
scroll
(perforations),
best
should
be
conditions:
The
that
alarm).
forms
switch
results, a
(A
next
form.
and
switch
Operating
(Table 2-2)
up
approximately
can be easily seen.
moves
are
printed
the
last
character
The
switch
scroll
feature
pin-feed
reverse
used.
direction,
feature
parity,
last
three
caused
printer
manually
is
off.)
this
down
in
should
is
used
platen.
is
used. Also, if
some
bunching
friction
overrun,
errors
the
check
positioning
This
synchronizes
switch
into
one
to
align
succession,
is
printed.
be
off
along
Since
these
the
printed
platen
framing,
are
indicated
error
has
been
requires
the
second
Before
when
or
or a dual-cam
a clear
them
the
also
loads
the
HyTerm's
after
another
the
printing
the
paper
Turning
with a forms
the
jamming
this
inserting
devices are
line
may
form
to
a
is
of
Audible
POWER (indicator)
POWER (switch)
Alarm
Sounds
same
error
Also
margin. (This
position
Lights
Controls
takes
for
type
do
of a different
sounds
short
whenever
ac
place.
NOTE
When
the SCROLL switch
moves up immediately.
paper does
printed
Therefore, when inserting paper and setting top
form,
and then operate the
or
some
paper to the top line.
1/4
not
when
can
of
power
not
move down
or
the
next
if
the SCROLL switch is on,
space,
other
key, before attempting to align the
second
power
for
sound
the
type
will.
BEL
only
occur
the
"maximum.")
is
to
HyTerm.
each
alarm
character
when
present
When
new
in
is
When
until
printer
~arriage
type
(unless
is received
the
right
the
HyTerm.
power
turned on, the paper
it
is turned
the
next
function
first
return, line feed,
of
error.
errors
have been
or
when
margin has been
is
first
off,
character
is
performed.
turn
it
Additional
reset),
printing
applied, a clear
the
of
off,
set
is
errors
but
the
exceeds
at
some
operation
of
right
print
the
first
2-2
Figure 2-3. Control
Panel
Switch
FORM
SPEED
SPACING
AUTO
PARITY
DUPLEX
LENGTH
LF
Table 2-2. Control
This
is a 12-position
the
front
panel.
the
SET
TOF
sure
the
SCRO
5.5,
6, 7,
8,
8.5,
size
of
form
operate
at
This
receive
communications
switch
This
per
non-functional
When
line).
but
move
This
used
on
This
half-duplex,
printer.
"echoed"
received over
properly.
power
on.
is a
three-position
speed
is
non-functional.
two-position
inch.
If
optional
this
switch
When
off,
the
print
the
paper.
is a three-position
on
each
transmitted
two-position
keyboard
In
full-duplex,
back
the
rotary
This
switch
switch
is
depressed
LL
switch
11,
12,
being
used
The
setting
toggle
of
10,
15,
network
toggle
horizontal
until
after
is
on,
each
the
carriage
head
stays
toggle
incoming
characters.
by
character,
switch
data
keyboard
the
host
communications
Panel
Function
switch
is
set
to
is
off.)
Form
or
14
inches.
in
order
of
this
switch
or
30
characters
requirements.
switch
selects
spacing (see
a Clear
at
operation
carriage
return
the
same
switch
Parity
is
selects half-
is
both
data
computer.
link.
used
to
indicate
load
length
This
to
allow
switch
that
horizontal
return
merely
line: a
that
and
the
not
checked
transmitted
is
in
conjunction
the
this
value
can
switch
form
is
also
selects
per
If
the
HyTerm
3.5.3)
is
performed.
also
causes
moves
separate
selects
method
in
or
full-duplex
transmitted
In
full-duplex,
NOTE
size
of
into
be
one
must
feeds
loaded
the
data
second.
spacing
has
a line
the
carriage
Line
the
method
of
parity-bit
MAR K
and
with
the
the
form
the
HyTerm's
line,
(1/6
be
set
to
and
absolute
into
memory
communications
It
must
is
wired
for
of
either
been
employed,
feed
back
Feed
operation
of
parity
generation
position.
data
communications.
automatically
only:
it
will
the
only
SET
TOF
being used
memory.
inch)
or
correspond
vertical
automatically
be
set
according
120
cps
10
or
12
this
(paper
moves
to
the
is
checking
printed
be
printed
data
printed
switch
and
(Make
3,
3.5,
with
tabs
transmit/
speed,
characters
switch
up
left
margin,
required
to
to
be
on
only
is
on
then
4,
the
to
to
this
is
one
to
be
used
In
the
if
that
CLEAR
This
also
pushbutton
accompl
When the optional current-loop interface
must
always be in the FULL position,
of
the
mode
of
operation.
a general reset
of
the
ished
switch
regardless
provides
at
power-on.
2-3
HyTerm
is
used, this
electronics.
This
function
is
2-4
2.2.3 Keyboard
Several
meet
explains a typical
tion
with
different
many
different
contained
little
difficulty.
here
types
customer
keyboard
can
be
of
keyboards
requirements.
(Figure 2-4),
transferred
are available
This
and
the
to
other
to
section
informa-
keyboards
2.2.3.1.2
are
repeat
function
(about
includes
return,
Repeat
keys:
and
20
times
the
period,
code
per
minus
and
Keys.
when
associated
second)
(hyphen),
space.
Certain
depressed
with
until
backspace,
keys
the
and
that
key
on
each
held
key will
is
released.
line
down,
feed,
keyboard
the
repeat
This
carriage
The
keyboard
portion
ordinary
section,
control
additional
2.2.3.1
regular
character
function
performed.
representing
cations
depressed,
key
2.2.3.1.1
and
called
generate
These
functions
Control
down:
down
key
Vertical
2-4,
Should
depressed
and
them
function
that
ways, e.g.,
code.
three
appropriate
is
typewriter
which
section
ALPHAMERIC
Most
keys
typewriter
(space, tab,
network.
is
printed
"shifted"
"control"
special
control
mode
to
generate a code
the
in
the
Tab
hold
both
the
control
Non-alphabetic
(TAB, LINE
it
is
For a complete
modes
contains
the
alphameric
keyboard.
provides an
is
located on
control
corresponding
such as vertical
CTR L key
at
and
possible
switches.
in
the
At
the
same
that
character
If
the
the
upper
and
the
Control
modes
mode,
control
characters
is
in
alphameric
(VT) code
CTR L
down
the
SHIFT
the
same
mode
keys having
the
same
to
RETURN
for a
code
chart
alphameric
keys:
etc.)
SH I
case
corresponding
Mode. I n
of
effect
and
will prevail.
FEED,
generate
and CTRL-M
three
sections.
section,
alternate
SECTION
when
to
time,
is
FT
character
operation, a third
is
available. This
characters,
tab,
whenever
in
then
section.
on
and
(or LOCK) and
time,
code
listing
particular
in
the
generally resembl ing
To
the
means
the
left,
section
a key
that
key
corresponding
if in
Remote
transmitted
key
or
the
associated
code
addition
such as RS, US, VT,
are used
absolute
the
control
mode,
depress
For
example,
the
keyboard
operate
the
CTR L key will override,
only
one
DEL,
etc.)
in all
three
some
codes
both
of
all
codes
keyboard,
appendix.
The
right
is
the
numeric
of
digit
entry.
which
contains
perform
is
to
horizontal
and
the
the
is
depressed,
printed,
to
the
mode,
the
to
the
communi-
shift
LOCK key
with
is
transmitted.
to
the
"unshifted"
keyboard
mode
is
perform
tab,
CTR L key
depress
shown
legend engraved
generate
modes. Note also
generate
and
release
to
generate
in Figure
"K"
key
CTRL
the
in
two
different
generated
refer
largest
an
A
same as
the
or
the
key
is
code
is
each
mode,
used
to
etc.
special
etc.
is
held
hold
another
once.
keys be
on
same
the
CR
in
the
to
the
2.2.3.1.3
keys provide special
covered
keyboard
are
the
the
right,
The
transmitted
HyTerm
characters
preted.
which
Graphics, red
special
them
The
found
moves
carriage
The
Remote
mode,
a
22.3.2
This
digital
the
may be used
dimple,
Operation
affect
Special Keys.
is
the
CTR L key.
in
Figure 2-4
ESC key
and
ESC
electronics
It
are used
functions
will be covered later
LINE
on
many
the
to
DEL
mode
it
prints
NUMERIC
section
data.
numbered
to
this
section.
in
the
DEL
key
generates
but
does
differently
is
used
to
to
ribbon,
may
FEED
typewriters.
paper
the
left
margin.
key
(see
the
logical NOT
provides a
These
keys
keys
for
entry
provide
of
the
SH I
the
to
up
transmits
SECTION
in
"home"
On
some
functions.
There
worthy
upper
key,
not
interpret
than
initiate 2- and
control
etc. A complete
be
found
key
one
2.2.3.3),
may
the
of
FT
or
of
left,
in
the
the
"escape"
priflt.
This
the following
they
would
special
in
in
this
section
is
similar
It
transmits
line while
the
with
symbol
"10-key
be used
alphameric
numeric
key
CTR
L keys generally
keyboards,
One
of
are
three
special
the
lower
Section
"delete"
pad"
data.
"feel"
mention.
LINE
right.
character,
character
normally
3-character
functions,
listing
1.4.2, and
or
in
to
the
the
not
no
printing.
(-,).
for
interchangeably
section:
Key
for
these
others
FEED
key,
which
causes
one
be inter-
sequences,
such as
of
Section
"Index"
LF
code,
returning
character
In Local
rapid
entry
either
No.5
the
operator.
does
certain
already
on
the
These
on
is
the
or
two
these
all
of
3.
key
and
the
in
of
with
keys
has a
not
2-5
Figure 2-5. Printer Controls
2-6
2.2.3.3
following
(1) LOCAL. A push-to-Iatch/push-to-release
(2)
(3)
CONTROL
The
control
functions:
selects Local
operates
writer.
functions,
communications
essentially
additional
Remote
ence
the
mode is in
UC
to-release
keyboard
case
alphabetic
acters are
feature.
BREAK. A momentary
Break
normally
computer
this
the
matically,
Paper
occurs.)
substantially
In
mode.
is
made
communications
ONLY
letters
signal
key also clears
print
Out,
SECTION
section
or
Remote
Remote,
it
also
link. Basic
the
same
items
Throughout
to
data
effect.
(Upper
switch.
lower
case
for
printing
characters
unchanged.
to
used
to
for
various
buffer.
and
the
Printer
contains
mode.
the
in
addition
transmits
in
either
requiring
transmission
link, it
Case
Only). A push-to-Iatch/push-
When
latched
alphabetic
are
The
action
the
communications
"get
network
out
any
(A Break
print
Check,
keys
In Local,
same as an
and
receives
operating
case,
consideration
this
is
assumed
down,
and
transmission;
unaffected.
OFF
position
switch
the
attention"
functions.
data
is
also
buffer
is
or
to
with
section,
and
characters
that
transmitted
cleared,
Overrun
to
the
techniques
reception
I ncoming char-
that
may be
2.2.4 Printer Controls
Figure 2-5 illustrates
used by
correspond
(1) Platen knobs. These
the
to
manually
properly.
platen
action -when
the
platen
position
this
platen
Note
that
form
is
HyTerm
form
must
(with
the
switch
must
operator.
the
keyed
in
The
to
of
the
variable
whenever
moved
electronics.
be
SCROLL
be
the
The
items
allow
order
to
right-hand
roll freely
writing line
function.
the
out
To
positioned
switch
operated.
printer
numbers
in
the
illustration.
the
platen
insert
paper
knob
the
knob
is
in
either
can
platen
is
of
synchronization
re-synchronize
for
printing
off)
controls
in
the
and
provides variable
pushed
direction.
be
changed
turned
on
and
control
switch
the
electric
data
that
it
link.
of
following list
to
by
the
the
that
HyTerm
type-
typewriter
over
the
are
only a few
in
the
when
refer-
or
Remote
converts
to
upper
all non-
inhibits this
transmits
This
the
host
Depressing
left
auto-
whenever
condition
commonly
be
rotated
position
in,
it
allows
The
by using
hand,
with
two,
the
first line
SET
TOF
the
to
all
is
in
the
the
the
(2) Platen
forward
form
all
rearward
Intermediate
between
form
the
hammer
done
2.2.5).
(3) Paper bail levers
&
the
(4)
optimum
be
one
using a pin-feed
the
paper,
proper
tractor-feed
(5)
Combination
tion
It
a
a
it
characters
(6) Access cover.
provide
becomes
change
covers
access cover,
rear
called
forms
tion
"skirts"
platen.
position
carriage
the
corner
raise
"short"
position
(7) Paper release lever. I n
releases
repositioned
when
proper
when
tractor-feed
adjust
thicknesses
the
way
of
rear,
by
paper
pulled
of
the
bail rollers
but
operation
of
the
is
marked
the
may
and
the
tractor
terminals.
left
when
of
or
printing
feeding
printing
lever.
or
backward
forward
for
an original
positions
these
several
To
return
first,
copies
it
may
intensity
changing
against
print
forward,
levers)
are held
mechanism.
scale. This scale provides a visual indica-
print
for
per inch.
This
access
necessary
printwheel.
be
is a one-piece
swings
"short"
and
This
that
snap into place
raise
the
carriage
or
power
the
access cover until it snaps free,
remove
access cover, insert
then
tension
or
on
mechanism
This
to
(number
for
single copies,
provide
two
extremes.
and
be necessary
for
optimum
the
impression
and
paper
the
platen.
quality
to
found.
of
and
away
from
when
paper
platen
or a tractor-feed
do
not
in
by
the
pin-feed
head
position
both
10
cover snaps
the
printer
to
replace a
One
The
up
when
access cover,
is
provided
cover
or
remove
to
by
manually
is
OF F). Lift
the
entire
snap
the
the
on
the
removed.
a friction-feed
the
paper.
on
a pin-feed
is
lever moves
compensate
of
carbons).
and
five
for
When
th
is
lever
to
print
bail.
The
This
quietness.
the
is
being
apply
full pressure
the
optimum
paper
along
characters
off
mechanism
ribbon
of
two
first, called
cover
that
raised.
must
on
is
augmented
over
the
the
far
sliding
up
cover.
the
left side
forward
paper,
The
lever
It
platen
used.
the
for
different
It
should
and
all
carbon
form
thicknesses
printing
is
moved
increase
control
platen,
or
different
The
all
access cover,
left
into
position,
allowing it
platen
should
the
quality.
switch
paper
bail
is
necessary
The
bail
(by moving
inserted.
mechanism,
position
clamps
the
typing
per inch
raises easily
when
cartridge
types
the
is
hinged
second
be
used
with
current
by
two
the
ends
(either
the
carriage
on
the
left
To
replace
right side
place.
this lever
should
to
be
or
platen
be
the
way
copies.
on
toward
print
This
(see
holds
for
must
When
on
the
for
or
the
line.
and
12
to
or
of
"long"
at
the
type,
the
produc-
plastic
of
the
first
with
to
front
then
the
into
to
be
back
provide
forward
when
a
is
it
a
be
a
2·7
2.2.5 I mpression
The
impression
under
the
access cover,
different
different
ness.
levels
printwhee-\
Set
the
switch as follows:
H High
M = Medium
=
L
intensity;
Low
intensity;
life
of
"Medium"
of
print
intensity;
the
Control
control
toward
fonts
for
for
more
or
"Bold"
Switch
switch
hammer
and
multiple
for
most
I ighter
delicate
types).
(Figure 2-6)
the
right. I t provides
energy
variations
type
to
part
forms
normal
printing,
fonts
is
located
accommodate
in
forms
thick-
only.
printing.
to
extend
(as
opposed
three
the
to
on
the
control
and
no
the
cover
overrun
Occasionally
printer
replacing
with
care.
out
to
override
or
by
replacing
panel lights
printing
(see Table 2-3).
with
its
occurs.
is
closed again, providing
it
may
the
access
platens
position until
or
This
can
"override"
the
cover.
ribbons.
be
position.
it
up
and
the
The
printing
become
cover
accomplished
is
WARNING
open
This
The
pushed
necessary
is
audible alarm
will
then
the
buffer
to
or
removed,
permissible
by
pulling
switch
will
back
in,
either
sounds,
occur
did
operate
e.g.,
when
the
stay
by
when
not
the
when
done
switch
in
the
hand
2.2.6 Cover-Open Switch
The
cover-open
cover. (See Figure 2-6:
differently
operation
each
attempted
time
is
the
while
than
the
access
switch
the
same.)
cover
the
one
The
cover
is
located
the
shown
switch
is
opened
is
under
switch
in
is
open,
the
printer
may
be
the
photograph,
automatically
or
closed. If
the
ERROR
COVER-OPEN
SWITCH
access
mounted
actuated
printing
indicator
but
Whenever the access cover is removed
(e.g.,
when changing ribbons or print-
wheels),
use
care
to
not
accidentally
touch the cover-open switch - this could
allow a sudden
carriage
movement which
might cause injury. Always keep hair,
is
jewelry, etc.,
carriage
IMPRESSION
CONTROL
out
of
and printwheel.
SWITCH
the
area
of
the
Figure 2-6. Cover-Open and Impression Control Switches
2-8
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