Line Printer II Service Manual (19xx)(Radio Shack)

LINE PRINTER n
Catalog
Number
26-1 154A
mmmm\
USS
NOTE
The purpose of
this
manual
adjustment procedures and
complete repair procedures.
is
it
twofold.
It
provides the owner with complete
provides Radio Shack Service Personnel with
If you are not technically inclined, do not attempt to
you do, you'll void your warranty.
repair
your Printer.
If
TABLE OF CONTENTS
SECTION 1
INTRODUCTION
Section
Page
1.1
SCOPE
1-1
1.2
GENERAL DESCRIPTION
1-1
1.3
PHYSICAL DESCRIPTION
1-2
1.4
FUNCTIONAL DESCRIPTION
1-4
1.5
SPECIFICATIONS
1-7
SECTION 2
INSTALLATION
2.1
INSPECTION
2-1
2.2
INTERFACE INFORMATION
2-1
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2-1
Printer Interface Connector .
Interface Connector Pin-Outs .
Interface Drivers and Receivers .
Interface Communication and Timing
Host-Generated Control Codes .
ASCII Code Charts
2.3
AUTO LINE FEED ENABLE/DISABLE
2.4
CHARACTER SET SELECTION
....
2-2
2-2
2-3
2-4
2-5
2-9
2-9
SECTION 3
THEORY OF OPERATION
3.1
BASIC DESCRIPTION
3-1
SECTION 4
MAINTENANCE
4.1
GENERAL
4-1
4.2
PREVENTIVE MAINTENANCE
4-1
4.3
OPERATOR TROUBLESHOOTING
4-3
-l-
TABLE OF CONTENTS (cont'd)
Section
4.4
Page
FUSE REPLACEMENT
4-4
Removal of Covers
Fuse Replacement
4-4
4-6
4.5
DETAILED TROUBLESHOOTING
4-7
4.6
GENERAL CLEANING AND LUBRICATION
4-10
4.4.1
4.4.2
SECTION 5
ADJUSTMENTS
5.1
INTRODUCTION
5-1
5.2
TOOLS AND ACCESSORIES
5-1
5.3
PRINTHEAD GAP ADJUSTMENT
5-2
5.4
PLATEN ADJUSTMENT
5-2
5.5
ROTOR/HALL EFFECT SENSOR ADJUSTMENT
5-3
5.6
LINE FEED SOLENOID ADJUSTMENT
5-3
5.7
PRINT DENSITY (SPEED) ADJUSTMENT
5-4
SECTION 6
REMOVAL AND REPLACEMENT
6.1
SCOPE
6-1
6.2
MECHANISM ASSEMBLY
6-1
6.3
PCB LOGIC BOARD
6-3
6.4
LINE FEED SOLENOID ASSEMBLY
6-5
6.5
CARRIAGE RACK, MOLDED
6.6
BASE COVER ASSEMBLY
6-7
6.7
BODY COVER ASSEMBLY
6-7
6.8
HEAD CARRIAGE ASSEMBLY
6-9
6.9
PLATEN ASSEMBLY.
6-10
.
SECTION 7
SUPPORTING ILLUSTRATIONS
-ii-
6-5
TABLE OF CONTENTS (cont'd)
SECTION 8
ILLUSTRATED PARTS BREAKDOWN
Section
Page
8.1
INTRODUCTION
8-1
8.2
ABBREVIATIONS
8-1
8.3
MECHANICAL PARTS BREAKDOWN
8-4
8.3.1
8.3.2
8.3.3
8.3.4
Figure and Item Number
Part Number
Description
Quantity
8-4
8-4
8-4
8-4
8.4
ELECTRICAL PARTS BREAKDOWN
8-22
8.5
NUMERICAL INDEX LIST
8-27
8.5.1
8.5.2
8.5.3
8.5.4
Part Number .
Description
Figure and Item Number
Quantity
APPENDIX A
ADJUSTABLE PIN-FEED DRIVE ROLLER
-ill-
8-27
8-27
8-27
8-27
LIST OF ILLUSTRATIONS
Page
Figure
1-1
1-2
2-1
2-2
2-3
2-4
2-5
2-6
2-7
3-1
Printer Assemblies
Pictorial Schematic
1-3
1-5
Top View of Printer Interface Connector
Interface Drivers and Receivers
Interface Timing
ASCII Code Chart (U.S.A., France)
ASCII Code Chart (United Kingdom, Germany)
ASCII Code Chart (Italy, Sweden/Finland)
Setting Auto Line Feed and Character Set Switches
2-1
....
2-2
2-4
2-6
2-7
2-8
2-9
Line Printer II Basic Block Diagram
Line Printer II Character Styles
Interface Timing
Acknowledge Timing on Power-Up
3-1
3-2
3-3
3-4
4-1
Replacement of Fuse F1
4-5
6-1
Mechanism Assembly Replacement
Logic Board Replacement
Line Feed Solenoid Replacement
Carriage Rack Replacement
Base and Body Cover Assembly Replacement
Head-Carriage Assembly Replacement
Platen Assembly Replacement
6-2
6-4
6-6
6-6
6-8
6-10
6-11
PCB Part No. 63669422 Schematic Diagram
PCB Part No. 63669416 Scrematic Diagram
7-2
7-3
Line Printer II Major Assemblies
Body Cover Assembly
Mechanism Assembly
Printer Head/Carriage Assembly
Left/Right Side Plate Assemblies
Base Cover Assembly
Paper Roll Holder Assembly
Main Acoustic Kit
Logic P.C.B. Assembly
8-4
8-6
8-8
8-12
8-14
8-16
8-18
8-20
8-22
6-2
6-3
6-4
6-5
6-6
6-7
7-1
7-2
8-1
8-2
8-3
8-4
8-5
8-6
8-7
8-8
8-9
-IV-
3-3
3-4
3-5
SECTION
1
INTRODUCTION
1.1
SCOPE
This manual contains detailed information on the installation,
theory of operation, maintenance, and adjustment of the Radio Shack Line
Printer II dot-matrix printer. The contents of the manual are for use by
qualified service personnel who have been trained to maintain and repair
electronic and electromechanical equipment. Care must be exercised when
servicing the printer to avoid possible damage to the printer or injury to
personnel.
1.2
GENERAL DESCRIPTION
The Line Printer II is an operationally simple, compact, microprocessor
controlled, dot-matrix, impact printer. The unit prints 7x7 dot matrix
characters at 10 or 16.7 characters per inch in line lengths up to 8 inches at
a rate of 100 characters per second.
The printer features three-way paper
handling.
(1)
1/2-inches (9-inches pin-to-pin) wide standard computer fanfold
forms, with fixed position pins to ensure pinfeed paper registration.
The paper can be multipart up to three parts.
(2)
Rolled paper, 3 1/2-to 8 1/2-inches wide, 1-inch core and up to 5inches diameter. The printer includes a roll paper holder. A
built-in rip-and-read cutting edge allows easy removal of paper.
The first line of following page is printed within five lines of
tear edge. Two ply paper may be used with operator attendance.
(3)
Single sheets of 8 1/2-inch wide paper, hand fed as with an
ordinary typewriter.
9
The printer contains six dip switch selectable character sets of the
following countries: U.S.A., France, United Kingdom, Germany, Italy and
Sweden/Finland. Characters are printed at up to 80 characters per line in the
10 cpi character density and up to 132 characters per line in the 16.7 cpi
character density. Elongated characters are double-width characters and can
be printed in either the 10 cpi or 16.7 cpi character density.
Other significant features include:
(1)
(2)
(3)
(4)
(5)
(6)
Reliable free-flight head.
Microprocessor technology.
Full line buffer.
Fast carriage return at 10 inches per second.
Special line feed buffer for host-controlled forms control.
Compact size (5-inches high x 14 1/2-inches wide x 11-inches
deep)
1-1
1.3
PHYSICAL DESCRIPTION
A printer mechanism, printed circuit board, cover assembly set, and
holder for roll paper comprise the major assemblies of the printer. See
Figure 1-1.
The three cover set provides structural support and consists of a
base cover, a body cover, and a top cover. The base cover supports the
printed circuit board and the printer mechanism. The body cover fits over and
around the base cover and contains a flat tray for the ribbon. It also houses
the ribbon drive motor and gear mechanism. The top cover snaps into the body
cover and prevents contact with the print mechanism and electronics. Printed
paper exits through a slot in the rear of the cover which has a serrated edge
to provide a tear bar for removing printed pages.
The printed circuit board (pcb) contains all the printer electronics
including an "on board" DC power supply with an input transformer, filter
capacitors, and fuse. The pcb fits underneath the printer mechanism and is
approximately the same size as the bottom cover although the electronic
circuitry requires only about one-third of this area. This allows the printed
circuit input edge card connector, which protrudes from the bottom rear of the
printer, to be an integral part of the pcb for increased reliability. It also
allows the POWER ON/OFF and ONLINE/OFFLINE switches, which protrude from the
bottom front to be mounted directly on the pcb.
The printer mechanism consists of a left and right end plate which
secure the carriage assembly shafts and carriage rack, the platen, and the
paper feed roller assemblies. A solenoid attached to the left end plate
provides the drive for paper movement. The solenoid is mechanically linked by
a pawl which engages a ratchet on the paper feed roller.
When the solenoid is
energized the paper feed roller is rotated incrementally resulting in a
forward (upward) movement of paper one-sixth inch (4 mm) or one line.
The carriage assembly is driven back and forth on the carriage
shafts by the drive motor pinion gear which engages the rack. The print head
is transported along the platen by the motion of the carriage assembly.
A
flexible cable connects the drive motor and print head solenoids to the
pcb.
1-2
00899
PAPER EXIT SLOT
SERRATED
EDGE
BODY
COVER
ONLINE/OFFLINE
SWITCH
PRINTED
PRINTER ASSEMBLY
CIRCUIT
BOARD (PCB)
POWER
ON/OFF
SWITCH
Figure 1-1.
PRINTER ASSEMBLIES
1-3
1.4
FUNCTIONAL DESCRIPTION
Figure 1-2 is a pictorial diagram of the Line Printer II. All of
the logic, control, and power supply circuits are contained on the logic pcb
(printed circuit board) . The printer employs a microprocessor located on the
logic pcb to control printer operation. Under program control the microprocessor controls the receiving of input data from the host device, monitors
printer status, initiates and controls movement of the carriage assembly,
controls printing by the print head, and controls paper movement. It monitors
the position of the print head at all times and provides printer status
information to the host device.
The host device transmits 8-bit parallel (ASCII) data and a data
strobe signal to the printer logic pcb. Control of the transmission of data
betwe en the host device and the printer accomplished using the acknowledge
(ACK) , BUSY, and DEMAND signals.
Data tra nsmitted by t he host device is
strobed into the logic pcb circuits by the DATA STROBE signal. The printer
responds by sending a BUSY signal to host device indicating printer is operating on the data. After processing the data the printer sends an acknowledge
signal to the host and the BUSY signal is discontinued. The DEMAND signal is
the inverse of the BUSY signal and when present indicates to the host that the
printer is not busy and can accept data.
The input data applied to the printer consists of character data and
control code data. Character data is stored in an input buffer until the data
is to be printed.
Control codes are interpreted as instructions by the
printer and provide the means for host control of the printer.
Input character data is stored in the input buffer until the buffer
is full, or until a carriage return (CR) control code is received.
A CR
control code is interpreted as a print command by the printer. Receipt of a
CR control code by the printer intitiates printing of the contents of the
input buffer. Printing is also initiated when the input buffer becomes
full.
In the 10 cpi mode buffer full is 80 characters while in the 16.7 cpi
mode buffer full is 132 characters.
Characters are printed by selectively energizing the print head
solenoids which in turn activate the pins of the print head which are arranged
in a column.
As the print head is moved across the paper the appropriate pins
are activated driving them against the ribbon paper, and platen to form
characters in a 7x7 dot matrix.
The print head is mounted on the carriage assembly. Printing occurs
only when the carriage is moved from left to right. When the printer is
turned on and after printing each line, the print head is moved to the left
side of the printer mechanism. The carriage assembly is driven by a reversible
dc motor mounted on the assembly. When a print command (CR) is received the
motor is energized, the carriage assembly is moved in the forward direction,
and the contents of the input buffer is printed. As the carriage assembly
moves, an encoder wheel (which has magnets imbedded in it) is rotated. The
column sensor (Hall effect device) senses when each of the magnets moves past
it and generates column sense signals which are used to synchronize the
print head solenoids. Upon completion of printing a line of data, the polarity
of the dc voltage applied to the carriage drive motor is reversed and the
carriage assembly is moved to the left side of the printer.
1-4
Figure 1-2.
PICTORIAL DIAGRAM
1-5
Paper is automatically moved up one line after each line is printed
or whenever a line feed (LF) control code is sent by the host device. When a
line feed is to be executed, the line feed solenoid is momentarily energized
which causes the paper feed roller to move the paper one line. The automatic
line feed function may be disabled. However, if this function is disabled,
the host device must transmit at least one LF command prior to sending a print
command (CR) or a full line of character data or overprinting will occur.
Line feed (LF) commands may be intermixed with input character data
and multiple line feed commands may be sent by the host device. A special
line feed buffer is provided which can store up to 255 pending line feeds.
The initial line feed received causes an immediate advance of one line.
Because of the time required to execute a line feed is relatively long (160
milliseconds) with respect to the input data rate (9300 characters per second)
subsequent line feeds are stored as a count in the line feed buffer. All line
feeds are executed prior to printing the line of data.
The printer uses a Mobius strip ribbon configuration which allows
printing on the upper and lower portions of the ribbon on alternate passes of
the ribbon thereby increasing ribbon life. The ribbon drive motor (ac) is
energized at all times except when the print head is at the left-most position.
This insures proper movement of the ribbon through the ribbon path and compensates for the movement of the print head in both forward and reverse directions.
1-6
1.5
SPECIFICATIONS
The specifications for the Line Printer II
are contained in Table
1-1.
Table 1-1.
Specifications
Ribbon (12 per box)
15-yard zip pack Mobius strip
Paper
Cut Sheets (8 1/2-inches wide)
Rolls (3 1/2-inches to 8 1/2-inches wide x 5-inches
diameter with 1-inch Core) , 2 ply
Fanfold (9-inches pin-to-pin) , 3 ply
Printing Speed
28 lines per minute (1pm) at 80 characters
per line (cpl) or 74 1pm at 20 cpl left justified
Characters Per Line
80 maximum @ 10 cpi/132 maximum @ 16.7 cpi
Print Width
8 inches
Character Structure
7x7 Dot Matrix
Line Feed Buffer
Capacity for 255 pending line feeds.
Line Feed Repeat Rate
9
Vertical Spacing
6 lines per inch
Horizontal Spacing
10
Parallel Data Input Connector
40-pin PC edge connector
Parallel Interface Cables
Maximum length: 10 feet
Type:
Twisted pair
Gauge:
26 AWG
Code
Standard ASCI 1-2
Character Set
Dip switch selectable for U.S.A., France,
United Kingdom, Germany, Italy and Sweden/Finland
Input Character Format
8
Input Data Rate
Up to 9300 characters/ second.
Input Voltage/Frequency
120 Vac +_10% 60 Hz
Power Requirements
100 Watts
Size
14
maximum (204 mm)
linefeeds/second
characters per inch/16.7 characters per inch
parallel data bits.
1/2-inches W x
(368 mm) x
Weight
12
(279 mm) x
pounds (5.4 Kg)
1-7
11 -inches
D x 5-inches H;
(127 mm)
SECTION 2
INSTALLATION
2.1
INSPECTION
shipment.
Visually inspect the printer for signs of damage received during
Notify the common carrier immediately of any discrepancies.
NOTE
Any attempt to operate a damaged printer voids
the warranty and may cause further damage.
2.2
2.2.1
INTERFACE INFORMATION
PRINTER INTERFACE CONNECTOR
A 40-pin printed circuit edge-card connector located at the left rear
of the printer provides the means for connecting the printer to an input
device. The physical and electrical characteristics, pin orientation, and
connector pin-outs of the printer interface connector are shown below.
K
15°
TYP
COVER OUTLINE
PIN 40
I
0.88
f
0.75
0.02x45°
0.035
CHAMFER
Figure 2-1.
KEY BETWEEN
PINS 36 & 38
PINS ON .100 M-s
TOP VIEW OF PRINTER INTERFACE CONNECTOR
2-1
2.2.2
INTERFACE CONNECTOR PIN-OUTS
Table 2-1 shows interface connector pin numbers and the input and
output signals at each pin.
Table 2-1
PIN
.
Printer Interface Connector Pin-Outs
SIGNAL
PIN
23
25
27
29
31
33
35
37
39
DATA STROBE
DATA BIT 1
DATA BIT 2
DATA BIT 3
DATA BIT 4
DATA BIT 5
DATA BIT 6
DATA BIT 7
DATA BIT 8
ACKNOWLEDGE (ACK)
BUSY
ALWAYS LOGIC
(GROUND)
ALWAYS LOGIC 1 (+5V)
SIGNAL GROUND
NOT USED
SIGNAL GROUND
CHASSIS GROUND
+5V SIGNAL (P.S. ON)
NOT USED
NOT USED
2.2.3
INTERFACE DRIVERS AND RECEIVERS
1
3
5
7
9
11
13
15
17
19
21
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
SIGNAL
TWISTED PAIR GROUND (DATA STROBE)
TWISTED PAIR GROUND (DATA BIT 1)
TWISTED PAIR GROUND (DATA BIT 2)
TWISTED PAIR GROUND (DATA BIT 3)
TWISTED PAIR GROUND (DATA BIT 4)
TWISTED PAIR GROUND (DATA BIT 5)
TWISTED PAIR GROUND (DATA BIT 6)
TWISTED PAIR GROUND (DATA BIT 7)
TWISTED PAIR GROUND ( DATA BIT 8)
TWISTED PAIR GROUND (ACKNOWLEDGE)
TWISTED PAIR GROUND (BUSY)
TWISTED PAIR GROUND (DEMAND)
NOT USED
ALWAYS LOGIC 1
GROUND
PIN 32 JUMPERED TO PIN 34
FOR SENSING PRINTER CONNECTED
DEMAND
NOT USED
NOT USED
Figure 2-2 illustrates the requirement for drivers and receivers used
in the interface.
All levels are TTL compatible.
LO = 0.4
@ 6ma
1
O
volts
<
HI = 2.4 volts
LO = 0.4
@ 7ma
@ 400ua
HI = 2.4 volts
volts
IK
DRIVER
@ O.Oma
t>
RECEIVER
All
Figure 2-2.
input/output signals are
TTL
compatible.
INTERFACE DRIVERS AND RECEIVERS
2-2
00844
2.2.4
INTERFACE COMMUNICATION AND TIMING
The paragraphs below describe the interface communication signals.
Figure 2-3 illustrates the interface timing.
Data Strobe (Host Generated)
The data strobe (DATA STROBE) signal is a negative going pulse which
is used to transfer the incoming data from the host into the electronic
circuitry of the printer. The pulse duration must be a minimum of one microsecond. The relationship of the leading and trailing edges of the DATA STROBE
signal with the leading and trailing edges of the input data signals must be
as shown in the interface timing diagram (See Figure 2-3)
Data Lines (Host Generated)
The eight input data lines provide the means to transfer bits 1
through 8 of the ASCII character data and control code data. The presence
of logic 1 bits is indicated by positive going signals.
Acknowledge (Printer Generated)
The acknowledge (ACK) signal is a negative going signal which indicates that the printer has processed the latest data transferred from the
host . No new data can be sent to the printer until the leading edge of the
ACK pulse has occurred. If the printer receives a carriage return (CR)
control code, or if the printer print buffer or line feed buffer becomes full,
the acknowledge pulse will not occur until after the line has been printed or
until the line feed buffer becomes only partially full.
Busy (Printer Generated)
The BUSY signal is a positive going signal which indicates the time
when the printer cannot accept new data. The BUSY signal goes positive on the
trailing edge of every data strobe pulse and remains high until the leading
edge of the acknowledge pulse. No new data can be sent to the printer while
the BUSY signal is high.
Demand (Printer Generated)
(positive)
The DEMAND signal is the inverse of the BUSY signal. When high
the DEMAND signal indicates that the printer can accept data.
,
+5V Signal (Printer Generated)
The +5V signal (I/O Connector, Pin 35) indicates that the +5V power
supply is operating in the printer. The +5V signal is intended to be used for
signal purposes only and it must not be used to provide power to external
equipment
2-3
DATA
BIT
1-8
J.
nin
I
min
[
«1us
min
> \
i (
I
1
us
mm
00840
,Xl us »
min
|
lus
h min
I
1
DATA STROBE
*100us
±5us
11
HI
<(
1
!
r
50ns
ACK
max
1
5us
±0.! >u s
'
BUSY
50ns
max
J
"
—
H
DEMAND
\)
*"
-•-50ns
—
* 100 usee is for data reception and line feeds that
do not fill the line feed buffer. For line feeds that
fill the buffer, the time is
msec +10%, -0%.
For carriage return codes, the maximum time is
1
1
2.6 seconds. In approximately 10% of the data
transfer cycles (strobe to
cycles) a microprocessor interupt occurs which extends the busy
time from a nominal 1 00 usee to approximately
ACK
200
Figure 2-3.
2.2.5
usee.
INTERFACE TIMING
HOST-GENERATED CONTROL CODES
Control code data is sent to the printer along with character code
data via the input data lines. Control codes are sent as data, but are
interpreted as instructions by the printer. A summary of the control codes
and control code sequences recognized by the printer is shown below. Each of
the control codes is described in detail in the following paragraphs.
Mnemonic
Decimal
Octal Code
LF
10
CR
ESC SO
13
012
015
033,016
033,017
033,023
033,024
ESC, SI
ESC, DC3
ESC, DC4
27,14
27,15
27,19
27,20
Hex Code
0A
0D
1B,0E
1B,0F
1B,13
1B,14
Function
Full Line Feed Forward
Print Command
Start Elongated Characters
Stop Elongated Characters
Select 10 cpi Character Density
Select 16.7 cpi Character Density
Line Feed (LF) Code
Each line feed (LF) code received by the printer causes the paper to
be advanced one line. Line feed codes are received at the same rate as
character data (up to 9300 characters per second.) When multiple line feed
codes are sent to the printer, the initial line feed code is acted upon
immediately and the additional line feed codes are stored in the line feed
buffer as a count. If more than 255 lines feeds are received the printer will
go BUSY, and no more data can be sent to the printer until pending line feeds
have been processed and the line feed buffer is partially full.
Line feed
codes and character data can be intermixed, however all line feeds in the
buffer will be processed before the next line is printed.
2-4
Carriage Return (CR) Code
The carriage return (CR) code serves as a print command to the printer.
Data is received by the printer and stored in the print buffer until a CR code
is received.
Upon receipt of a CR code, the contents of the print buffer are
printed. If the print buffer is filled, a CR code is generated by the printer
and the line is printed. The print head is returned to the left margin after
the content of the print buffer is printed.
ESC, SO; ESC, SI Code Sequence and Data Bit 8 Control
The ESC, SO code sequence (or bit 8 logically high) initiates printing
of elongated characters (doublewidth characters.) The ESC, SO code sequence
may be sent to the printer at any time during the transmission of a line of
character data (up to 40 characters.)
Reception of an ESC SI code sequence
(or bit 8 logically low) causes all data following the code sequence to be
printed normal size. The end of a print line terminates printing of elongated
characters. The next line of data will be printed as standard-width characters
unless an ESC, SO code sequence is received during the transmission of the
character data for that line.
ESC, PCI; ESC, DC3 Code Sequence
The primary character density is 10 cpi, selected by the printer
logic during initialization, or by ESC, DC3. The ESC, DC4 code sequence
selects the 16.7 cpi character density. The print buffer is set to 80 characters for 10 cpi and 132 characters for 16.7 cpi. The 16.7 cpi character
density is deselected by sending an ESC, DC3 code sequence or at the end of a
print line.
2.2.6
ASCII CODE CHARTS
Figures 2-4 through 2-6 are the ASCII code charts showing the 96
ASCII characters for the six different character sets, the codes for the
various characters, and the control codes recognized by the printer.
2-5
-%.
k\
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
io
\
°o
°1
1
2
3
4
5
6
I?
P
4-
p
a
7
t
1
1
1
^Column
b4 b3 b 2
t
% \ % \
1
1
1
1
NUL
DLE
Space
1
SOH
DC1
1
2
STX
DC2
3
ETX
DC3
4
EOT
ENQ
DC4
5
NAK
6
ACK
SYN
8
7
BEL
ETB
8
BS
9
1
A
Q
a
2
B
R
h
r
3
C
S
c
s
*
4
D
T
d
t
•/.
5
E
U
e
u
6
F
V
f
V
7
G
W
G
u
<
8
H
X
h
y^
y
*
1
HT
CAN
EM
)
9
I
Y
i
10(A)
LF
SUB
*
:
J
Z
J
Z
11 (B)
VT
ESC
+
?
K
t
k
<
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Figure 2-6.
ASCII CODE CHART
2-8
2.3
AUTO LINE FEED ENABLE/DISABLE
The Automatic Line Feed (ALF) function is controlled by a
(Section 1 of SW3) on the logic P.C.B. (Refer to Figure 2-7) . The
shipped from the factory with this switch in the ON position (Auto
Enabled) .
If the auto line feed is to be disabled, set the switch
position.
2.4
DIP switch
printer is
Line Feed
in the OFF
CHARACTER SET SELECTION
The unit can print character sets of six countries: U.S.A.,
France, United Kingdom, Germany, Italy and Sweden/Finland. The table in
Figure 2-7 shows the settings of Sections 2, 3 and 4 of SW3 for the various
character sets. To select the desired character set, place the POWER switch
in the OFF position; remove the top cover and select the character set per
Figure 2-7. Replace the top cover and restore power. NOTE: The unit is
shipped from the factory configured for the U.S.A. character set.
NOTE: POSITION
1
ON
SW3 IS SHOWN IN
THE AUTO LINE FEED
ON POSITION
CHARACTER
POS ON SW3
SET
2
3
4
USA
ON
FRANCE
UK
ON
ON
ON
GERMANY
ITALY
SWED/FIN
Figure 2-7.
ON
OFF
OFF
ON
ON
ON
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
SETTING AUTO LINE FEED AND CHARACTER SET SWITCHES
2-9
SECTION
3
THEORY OP OPERATION
3.1
BASIC DESCRIPTION
Figure 3-1 is a basic block diagram of the Line Printer II. All
logic, control, drive, and power supply circuits are contained on one printed
circuit board within the printer. The print head is mounted on a carriage
assembly driven by a dc motor. Printing is performed in the forward direction
only (left to right) , printing up to seven dots per column. The paper drive
roller is driven by a line feed solenoid which advances paper 1/6 inch each
time the line feed solenoid is actuated. The ribbon drive motor moves ribbon
past the print head at all times except when the carriage assembly actuates
the sensor at the leftmost carriage position. The power supply provides +5V
regulated, +5V EXT SENSE for host device sense, +12V regulated for motor
drive, +17 for solenoid drive, and +24 VAC for the ribbon drive motor.
The host device transmits 8-bit parallel (ASCII) data signals and a
data strobe signal to the printer logic. Control of the transfer of data is
achieved using the busy, demand, and acknowledge signals generated by the
printer logic.
00837
PRINTED CIRCUIT BOARD
IPRINTER
MECHANICS
I
I
8 -BIT
DATA
(Note
7 -PIN
SOLENOID DRIVE
1)
PRINT
HEAD
•
I
HOST
DEVICE
^
DATA STROBE
CPU
•MEMORY
•CONTROL
CARRIAGE
FWD/REV
DRIVE
MOTOR
LOGIC
BUSY
•
DEMAND
(DC)
DRIVE
CIRCUITS
ACKNOWLEDGE
LINE FEED
I +5V
+5V EXT SENSE
24
VAC
LINE
FEED
SOLENOID
RIBBON
DRIVE
MOTOR
POWER
SUPPLY
^
(AC)
+12V
+17V
I
-J
I
Figure 3-1.
LINE PRINTER II BASIC BLOCK DIAGRAM
3-1
The printer accepts and stores input character data in an input
buffer until either the buffer is filled or a carriage return (CR) control
code is received. If the buffer is filled or a CR code is received, the
content of the input buffer is printed. Printing of the characters is
achieved by energizing solenoids in the print head which drive circular pins
against the ribbon, paper, and platen as the print head is moved by the
carriage drive motor forming the characters in a 7x7 dot-matrix pattern. Upon
completion of printing the print head is moved to the left margin and the
paper is advanced one line by energizing the line feed solenoid.
Line feed (LF) control codes received by the printer control paper
movement. Each line feed code received causes the paper to be advanced one
line. The printer has a special line feed buffer, separate from the input
buffer, which can store up to 255 line feed commands. LF control codes are
received at the same data transfer rate as character data (up to 9300 characters per second) . The initial LF code causes an immediate advance of one
line. Additional line feed codes received are stored as a count in the line
feed buffer. Line feed codes and character data sent to the printer may be
intermixed, however, all line feeds received are performed before printing the
next line of data.
Automatic line feed upon completion of printing each line may be
disabled by setting Section 1 of DIP switch 3 on the printer logic printer
circuit board to the OFF position. If this function is disabled, the first
line of data will be printed when a CR control code is received or a buffer
full condition occurs. After printing the first line of data, the print head
is returned to the left margin and the paper is not advanced.
The second line
(and subsequent lines) of data must have at least one LF control code preceed
each CR control code or buffer full condition, or overprinting will occur.
Line feed codes may be used for limited paper handling functions.
Each line feed code moves the paper one-sixth of an inch. Thus, for example,
if it is desired to move the paper 12 inches, 72 line feed codes are required
before a CR control code is sent.
On power-up or reset, the printer is preset to the 10 cpi character
density. To select the condensed 16.7 cpi character density, an ESC, DC4 code
sequence is sent to the printer. The input buffer is set a 80 characters,
buffer full, for 10 cpi and 132 characters, buffer full, for 16.7 cpi. The
ESC, DC4 code sequence sent within a line of data is ignored. The 16.7 cpi
condensed print is deselected by sending an ESC, DC3 code sequence or at the
end of a print line.
The two character densities, 10 and 16.7 cpi may be elongated anywhere
Elongated characters are double width characters formed by
printing each column of dots within each character twice. Spaces between
characters are also twice as wide. This effectively halves the number
of characters per inch (cpi) . Figure 3-2 shows the normal and elongated
character styles.
in the line.
Elongated characters are initiated by using the escape code ESC, SO
code sequence (or data bit 8 logically high) and terminated by the escape code
ESC, SI code sequence (or data bit 8 logically low) . Elongated characters are
automatically terminated at the end of a line. Reception of an ESC SO code
sequence causes all data following the code sequence to be printed elongated.
Control code sequence ESC, SI causes all data following the code sequence to
be printed normal size.
Elongated characters may be initiated and terminated
any number of times within a line. The end of a print line terminates
printing of elongated characters, and unless elongated characters are initiated
by the ESC, SO code sequence preceeding the data for the next line, the
characters in the next line will be printed normal size.
3-2
•
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Figure 3-2.
LINE PRINTER II CHARACTER STYLES
3-3
Figure 3-3 shows the printer interf ace timing. Each set of data bits
sent to the printer is strobed by the DATA STROBE signal sent to the
printer by the host device. Within 50 nanoseconds following the trailing edge
of the DATA STROBE signal a BUSY signal is generated by the printer which is
sent to the host device. The BUSY signal informs the host device that the
printer is processing the input data and that no additional data from the host
device will be accepted by the printer. After completion of processing the
input data an acknowledge (ACK) signal is sent to the host device indicating
that the data sent by the host device has been accept ed and processed. Within
50 nanoseconds following the leading edge of the ACK signal the BUSY signal is
terminated indicating that the printer is again ready to accept additional
input data. A DEMAND signal is also generated by the printer and is available
to the host device. The DEMAND signal is the inverse of the BUSY signal and
when present (positive) indicates that the printer is not busy and is ready to
accept data.
(1-8)
00840
DATA BIT 1-8
io
UMlMDii
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4-
us
4-
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|
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DATA STROBE
.
*100us_)
±5us
^r
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50ns
max
ACK
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is
50ns
ma
.
5us
+0.5us
H~
50ns
1
DEMAND
HV
* 100 usee is for data reception and line feeds that
do not fill the line feed buffer. For line feeds that
the buffer, the time is 110 msec +10%, -0%.
fill
For carriage return codes, the maximum time is
2.6 seconds. In approximately 10% of the data
cycles) a microtransfer cycles (strobe to
processor interupt occurs which extends the busy
time from a nominal 100 usee to approximately
200 usee.
ACK
Figure 3-3.
INTERFACE TIMING
The time be tween the trailing edge of the DATA STROBE signal and the
leading edge of the ACK signal (data transfer cycle time) varies with the
functions to be performed by the printer. For normal data inputs and LF
control codes which do not fill the line feed buffer, the duration is nominally
160 microseconds.
For LF control codes which fill the line feed buffer, the
maximum time is 110 milliseconds +10, -0%. The maximum time for carriage
return codes is 2.6 seconds. In approximately 10% of the normal data transfer
cycles a microprocessor interrupt occurs which extends the time from a nominal
100 microseconds to approximately 200 microseconds.
Figure 3-4 shows the acknowledge timing on power-up. When power is
initially turned on, approximately 20 milliseconds is required for internal
voltages (+5V) to stabilize. Within 30 milliseconds after power is turned on
the BUSY signal is generated and the printer remains in the BUSY condition for
the next 170 milliseconds. The BUSY signal is then terminated and the printer
generates the first acknowledge pulse indicating that the printer is no longer
BUSY, is on line, and i s ready to accept data. Data should not be sent to the
printer until the first ACK signal is sent to the host device.
3-4
POWER ON
SWITCH
ON
OFF
+5V LINE
BUSY LINE
ACK
FIRST ACK PULSE
(PRINTER ON LINE)
INDETERMINATE
CONDITION
Figure 3-4.
00839
ACKNOWLEDGE TIMING ON POWER-UP
The POWER ON/OFF switch controls the application of primary power to
the printer. When power is turned on, an LED visible through the paper exit
slot indicates that the +5 volts is active. The ONLINE/OFFLINE switch controls
the printer modes of operation. When placed in the ON position, the printer
is placed in a local mode of operation, a BUSY signal is sent to the host
device, the printer electronics are reset, and the input buffer is cleared.
When placed in the OFF position, the printer electronics are reset, the print
head is returned to the left margin, and the BUSY signal is discontinued
allowing data to be sent by the host device. If the switch is placed in the
ON position when the printer is processing a line of data, the printer will
complete printing the line of data, return the print head to the left margin,
then reset the printer electronics and clear the input buffer. If the printer
is performing multiple line feeds at the time when the switch is placed in the
ON position, the line feed operation currently being performed will be completed
and the remaining line feeds will be processed when the printer is returned to
the on-line mode. The ONLINE/OFFLINE switch should be placed in the OFFLINE
posit ion when turning power to the printer on or off as extraneous acknowledge
(ACK) signals can occur during the periods when power is initially turned on
or off.
CAUTION
Actuation of the ONLINE/OFFLINE switch
results in loss of data contained in the
input buffer.
3-5
SECTION 4
MAINTENANCE
4.1
GENERAL
This section contains information on maintaining and troubleshooting
the printer. Routine preventive maintenance should be performed at regularly
scheduled intervals to insure satisfactory performance of the printer.
Preventive maintenance consists of periodic lubrication, cleaning, and adjustment of the printer. The recommended preventive maintenance schedule is
contained in this section. Troubleshooting procedures are also contained in
this section which will aid in isolating malfunctions to defective components
or required adjustments.
4.2
PREVENTIVE MAINTENANCE
Table 4-1 contains the recommended preventive maintenance routines to
be performed and indicates the recommended frequency of performance. Preventive
maintenance may be required more or less frequently than indicated depending
upon the printer application, operating environment, and type of paper or
forms being used.
Tools Required
Materials Required
Lint-free Cloth
Soft-bristle Brush
Light Lubricating Oil
Mild Detergent Solution
WARNING
When performing preventive maintenance
procedures, the POWER ON/OFF switch
must be in the OFF position and the AC
input plug must be disconnected . High
voltages are present in some locations
within the printer when the printer is
turned OFF.
4-1
Table 4-1.
ITEM
Preventive Maintenance
FREQUENCY
PROCEDURE
External Cleaning
As Required
Clean all external surfaces using a
mild detergent and a soft, clean,
lint-free cloth.
Internal Inspection
Each Ribbon
Change
Visually inspect interior of printer
for loose wires, connectors, and
hardware, chafing of cables, and
badly worn or damaged parts.
Print Head and
Carriage Assembly
Each Ribbon
Change
After removing ribbon, use a lightbristle brush to carefully remove
dust and residue from print head
and carriage assembly.
Print Head
Each Ribbon
Change
Using a soft, clean, lint-free cloth,
gently remove all dried ink from the
front of the print head.
General Cleaning
6
Months
Perform all of the above procedures.
Clean the platen surface using a
mild detergent and water, and a soft,
lint-free cloth. Using a vacuum
cleaner with a soft brush attachment
carefully vacuum interior of printer
taking care not to damage printer.
Carriage Guide
Bars
6
Months
Move print head to left side of
printer. Apply several drops of
lubricating oil to clean, lintfree cloth and lightly rub carriage
guide bars to remove any build-up of
residue. Move print head to right
side of printer and repeat procedure.
Paper Drive
Roller
6
Months
Using a lint-free cloth, clean the
paper drive roller and plate bushings.
After cleaning, apply one drop of
light lubricating oil to both paper
roller end plate bushings. Cycle the
paper roller using the thumbwheels to
allow the oil to seep into the bushings.
4-2
4.3
OPERATOR TROUBLESHOOTING
Table 4-2 lists some malfunctions which may occur, the probable
causes, and the remedies which may be performed by the operator of the equipment.
If the equipment remains inoperative after performing the remedies
indicated, the equipment should be serviced by qualified service personnel.
Note that the warranty is voided if attempts to repair the printer result in
further damage.
WARNING
When performing operator troubleshooting procedures, the POWER ON/OFF
switch must be in the OFF position
and the AC input plug must be disconnected . High voltages are present
in some locations within the printer
when the printer is turned OFF.
Table 4-2.
TROUBLE
Print too light.
Operator Troubleshooting Chart
PROBABLE CAUSE
REMEDY
Print head release lever
open or partially open.
Rotate print head release
lever clockwise to normal
printing position.
Worn or defective ribbon.
Replace ribbon.
Roll Paper/Cut-sheet
paper does not
advance properly.
Pinch roller release lever
in open position.
Pull pinch roller release
lever forward to closed
position.
Ribbon does not
feed properly.
Ribbon twisted or improperly loaded.
Check ribbon threading and
correct as required.
Ribbon drive rollers not
engaged properly.
Open and release driven
roller.
Rotate driven
roller clockwise to assure
proper movement of ribbon.
AC input plug not
connected.
Connect AC input connector
to power source.
Paper jam.
Remove power and carefully
clear paper jam. Check
condition of ribbon before
returning power.
Fuse F1 blown.
Check if "Power On" LED
is lit by looking down
through paper exit slot.
If not lit, replace fuse
Printer completely
inoperative.
PI.
4-3
Table 4-2.
Operator Troubleshooting Chart (cont'd)
TROUBLE
PROBABLE CAUSE
Power applied/data
sent -printer does
not print.
4.4
4.4.1
REMEDY
Cable between input device and printer not
connected
Check that connectors at
both ends of data input
cable are properly
connected to mating
connectors.
ONLINE/OFFLINE switch in
OFFLINE position.
Place switch in ONLINE
position.
FUSE REPLACEMENT
REMOVAL OF COVERS
In order to replace fuse F1, and to troubleshoot and repair the
printer, it is necessary to remove the covers. Refer to Figure 4-1 and
proceed as follows:
1
Place POWER ON/OFF switch in OFF position and disconnect ac input
plug from power source. Disconnect data input connector.
2.
Remove top cover by lifting rear edge until latches are clear of
body cover and then slide cover towards rear of printer to disengage front clips.
3.
Unthread the ribbon from the print head carriage assembly, then
take up slack in ribbon by turning ribbon drive roller knob
clockwise.
4.
Release the two Phillips-head screws at the front of the printer
and the three Phillips-head screws at the rear of the printer.
5.
Gradually raise the body cover until there is enough room to reach
under the front of the cover.
6.
Reach under the body cover and disconnect the ribbon drive motor
cable connector from connector J002 on the logic PC board.
7.
Keep the body cover level to prevent ribbon from unthreading and
set cover to one side.
8.
To reassemble printer, reverse procedure.
4-4
00900
RIBBON DRIVE
ROLLER KNOB
BODY
COVER
BASE
COVER
RIBBON DRIVE MOTOR
CABLE CONNECTOR
TRANSFORMER T1
HIGH VOLTAGE SHIELD
FUSE
F1.
1A
SLOW BLOW
.25D x 1.25L
Figure 4-1.
REPLACEMENT OF FUSE F1
4-5
4.4.2
FUSE REPLACEMENT
Fuse F1 is located on the forward right-hand corner of the logic
pcb adjacent to the power transformer and POWER ON/OFF switch. Refer to
Figure 4-1 and proceed as follows:
4.5
1.
Remove covers to gain access to logic pcb mounted on the base
cover.
(See Paragraph 4.4.1.)
2.
Loosen screw, located on right side of transformer using a Phillips
screwdriver.
3.
Remove the clear plastic high voltage shield covering the fuse and
AC input circuits.
4.
Remove and replace the defective fuse.
5.
Reinstall the high voltage shield. Make sure that the slotted
portion of the shield is under the flat washer.
6.
Tighten the Phillips-head screw to secure the shield and transformer .
7.
Replace the covers.
DETAILED TROUBLESHOOTING
Table 4-3 lists some malfunctions which may occur, the probable
causes, and the remedies which may be performed by qualified service personnel.
The procedures referenced in the detailed troubleshooting chart should only be
performed by qualified service personnel who have been trained to maintain and
repair complex electronic and electromechanical equipment.
Table 4-3.
TROUBLE
Head drags (wide
smudge on paper)
Light smudge under
print line.
Detailed Troubleshooting Chart
PROBABLE CAUSE
REMEDY
Head gap improperly adjusted.
Adjust printer head gap.
(See paragraph 5.3.)
Defective head-carriage
assembly.
Replace defective headcarriage assembly.
(See
paragraph 6.8.)
Head gap improperly adjusted.
Adjust printer head gap.
(See paragraph 5.3.)
Defective head-carriage
assembly.
Replace head-carriage
assembly.
(See paragraph 6.8.)
4-6
Table 4-3.
TROUBLE
Tears or creases
in paper (jams)
Print too light.
Print contrast varies
across print line.
Left hand margin
wanders.
Detailed Troubleshooting Chart (cont'd)
PROBABLE CAUSE
REMEDY
Head gap improperly adjusted.
Adjust printer head gap.
(See paragraph 5.3.)
Defective head-carriage
assembly.
Replace head-carriage
assembly.
(See paragraph 6.8.)
Head gap improperly adjusted.
Adjust printer head gap.
(See paragraph 5.3.)
Worn out or defective
ribbon.
Replace ribbon.
Owners Manual.)
Defective head-carriage
assembly.
Replace head -carriage
assembly.
(See paragraph 6.8.)
Head gap improperly adjusted.
Adjust printer head gap.
(See paragraph 5.3.)
Platen assembly improperly
adjusted.
Adjust platen assembly.
(See paragraph 6.9.)
Defective head-carriage
assembly.
Replace head-carriage
assembly.
(See paragraph 6.8.)
Defective mechanism assembly.
Replace mechanism assembly.
(See paragraph 6.2.)
Head gap improperly adjusted.
Adjust printer head gap.
(See paragraph 5.3.)
Defective printed circuit
Replace printed circuit
board.
(See paragraph
board.
(See
6.3.)
Defective mechanism assembly.
Prints too slow.
Replace mechanism assembly.
(See paragraph 6.2.)
Printer requires general
cleaning and lubrication.
Clean and lubricate
printer.
(See paragraph 4.6.)
Rotor/Hall effect device
improperly adjusted.
Adjust rotor /Hall
effect device.
(See
paragraph 5.5.)
Print density (speed)
improperly adjusted.
Adjust print density
(speed) .
(See paragraph 5.7.)
4-7
Table 4-3.
TROUBLE
Prints too slow,
(cont'd)
Detailed Troubleshooting Chart (cont'd)
PROBABLE CAUSE
Defective printed circuit
board.
REMEDY
Replace printed circuit
board.
(See paragraph
6.3.)
Prints erratically
(missing dots)
Defective head-carriage
assembly.
Replace head-carriage
assembly.
(See paragraph 6.8.)
Defective mechanism assembly.
Replace mechanism assembly.
(See paragraph 6.2.)
Defective 7-wire head
ribbon cable assembly.
Replace 7-wire head
ribbon cable assembly.
Defective 8049 microprocessor .
Replace 8049 microprocessor .
Defective printed circuit
Replace printed circuit
board.
(See paragraph
board.
6.3.)
Pin No. 7 prints too
light.
Defective FF head.
Replace FF head, 7-wire
flex circuit.
Defective head-carriage
assembly.
Replace head-carriage
assembly.
(See paragraph
6.8.)
Line feed operates
improperly.
Defective platen assembly.
Replace platen assembly.
(See paragraph 6.9.)
Printer requires general
cleaning and lubrication.
Clean and lubricate printer,
(See paragraph 4.6.)
Line feed solenoid improperly adjusted.
Adjust line feed solenoid.
(See paragraph 5.6.)
Defective line feed solenoid assembly.
Replace line feed solenoid.
(See paragraph 6.4.)
Defective mechanism assembly.
Replace mechanism assembly.
(See paragraph 6.2.)
Defective printed circuit
board.
Replace printed circuit
board.
(See paragraph
6.3.)
4-8
Table 4-3.
TROUBLE
Carriage emits
thumping noise while
printing.
Detailed Troubleshooting Chart (cont'd)
PROBABLE CAUSE
REMEDY
Printer requires general
cleaning and lubrication.
Clean and lubricate printer.
(See paragraph 4.6.)
Defective head-carriage
assembly.
Replace head-carriage
assembly.
(See paragraph
6.8.)
Defective carriage molded
rack assembly.
Replace carriage molded
rack assembly.
(See paragraph 6.5.)
Defective mechanism assem-
Replace mechanism assembly.
(See paragraph 6.2.)
bly.
Excessive print density at beginning of
print line (overprint)
Defective printed circuit
board.
Replace printed circuit
board.
(See paragraph 6.3.)
Defective ribbon drive
motor.
Replace ribbon drive motor.
Defective printed circuit
board.
Replace printed circuit
board.
(See paragraph 6.3.)
.
No ribbon movement.
4-9
4.6
GENERAL CLEANING AND LUBRICATION
The general cleaning and lubrication procedure should be performed by
qualified service personnel whenever the printer requires servicing or repairs
which require the cover assemblies to be disassembled. The procedures should
be performed prior to performing detailed service and repair procedures as
some malfunctions can be caused by dust, ribbon chaff, paper chaff, residue
build-up, or inadequate lubrication.
A.
Remove the printer covers.
B.
Visually inspect the interior of printer for loose wires, connectors, and hardware, chaffing of cables, and badly worn or damaged
parts.
C.
Remove the Mechanism Assembly (refer to paragraph 6.2) and set it
to one side.
D.
Using a light bristle brush sweep away the paper and dust residue
from the printer base and printed circuit board.
E.
Clean the print head and carriage assembly using a light bristle
brush to remove dust and residue.
F.
Gently remove all dried ink from the front of the print head
using a soft, clean, lint-free cloth.
G.
Clean contaminated parts of the rest of the mechanism assembly
using a freon-moistened lint-free cloth. Pay particular attention
to the carriage shafts and the paper roller end-plate bushings.
H.
Clean the carriage guide bars by applying several drops of
lubricating oil to a soft, clean lint-free cloth, then moving the
print head to the left side of printer and lightly rubbing the
guide bars to remove residue build-up. Move print head to the
right side of the printer and clean the left side of the guide
(Refer to paragraph 4.4.1.)
bars.
I.
Clean the paper drive roller and the end plate bushings using a
soft, clean, lint-free cloth. Then apply one drop of light
lubricating oil to both paper roller end plate bushings. Cycle
the paper roller using the thumbwheels to aid the oil to seep
into the bushings.
J.
Reassemble the printer and continue with service procedures.
After completion of service, clean all external surfaces using a
mild detergent and a soft, clean, lint-free cloth.
4-10
SECTION
5
ADJUSTMENTS
5.1
INTRODUCTION
The printer must be adjusted to correct certain malfunctions or to
correct marginal operation. Adjustment procedures should also be performed
whenever an affected part is replaced in the printer. The following adjustment
procedures are contained in this section.
o
o
o
o
o
Printer Head Gap Adjustment
Platen Adjustment
Line Feed Solenoid Adjustment
Rotor /Hall Effect Sensor Clearance Adjustment
Print Density (Speed) Adjustment
All of the procedures contained in this section are performed with
the printer covers removed.
Refer to paragraph 4.4.1 for the proper procedure.
Only the Print Density (Speed) adjustment is performed with power
applied to the printer. As this procedure is performed with the covers
removed, care must be taken to avoid personal contact with moving parts of the
printer or to areas of the printer circuitry where dangerous voltages are
present.
WARNING
Care must be taken when adjusting the
printer with the covers removed and
power applied to the printer as injury
can result from contact with moving
parts of the printer or areas within
the printer where dangerous voltages
are present.
Before performing any of the adjustment procedures contained in this
section, the entire procedure should be read carefully to assure that the
procedure is understood, that the appropriate tools and accessories are
available, and that the appropriate care is exercised when performing the
adjustment.
5.2
TOOLS AND ACCESSORIES
The procedures contained in this section require the following tools
and accessories:
Tools
1/4-inch common screwdriver
1/4-inch nutdriver
5/8-inch nutdriver
5-1
Tools (cont'd)
1
Phillips screwdriver
0.004-inch feeler gauge
0.005-inch feeler gauge
0.014-inch feeler gauge
2-mm hex key
No.
Accessories
Linefeed adjustment gauge
3/8-inch ignition wrench with overall length less than 2 inches
Mini-Exerciser
Mini-Exerciser interface cable
The accessories listed above may be procured from Centronics,
5.3
PRINTHEAD GAP ADJUSTMENT
A.
Remove the printer covers.
B.
Move the printhead to the center of the printer mechanism.
C.
Place the printhead release lever in position 3 and insert a
0.014-inch feeler gauge between the nose of the printhead and the
platen.
D.
Loosen the setscrew on the left side of the head carriage
assembly using a 2-mm hex key.
E.
Adjust the cam-bushing adjusting nut located under the left side
of the head-carriage assembly until the 0.014-inch feeler gauge
slips easily between the printhead nose and the platen.
(Refer to paragraph 4.4.1.)
NOTE
Ensure that the printhead release lever
is maintained in position 3 during this
adjustment.
P.
Tighten the setscrew loosened in step C. using a 2-mm hex
key.
5.4
PLATEN ADJUSTMENT
A.
Remove the printer covers.
B.
Perform the printhead gap adjustment procedure.
(Refer to paragraph 4.4.1.)
(See paragraph
5.3.)
C.
Move the printhead to the left side of the printer.
5-2
5.4
5*5
PLATEN ADJUSTMENT (cont'd)
D.
Place the printhead release lever in position 3.
Then, insert a
0.014-inch feeler gauge between the nose of the printhead
and
the platen.
E.
Adjust left hand platen screw until the feeler
gauge fits loosely
between the printhead and the platen.
F.
Move the printhead to the right side of the
printer.
G.
Place the printhead release lever in position
3 and insert a
0.014-mch feeler gauge between the nose of the printhead
and the
platen.
H.
Adjust the right hand platen screw until the
feeler gauge fits
loosely between the printhead and the platen.
I.
Apply red GLPT insulating varnish to the left
and right hand
platen screws.
«OTOR/HALL EFFECT SENSOR CLEARANCE ADJUSTMENT
A.
Remove printer covers.
B.
Loosen the Hall effect sensor mounting screw on
the head carriaqe
r
assembly.
C
5.6
(Refer to paragraph 4.4.1.)
Insert a 0.005-inch feeler guage between the
sensor and the
magnetic rotor.
D.
Move the sensor against the feeler guage until
the guage can be
moved with slight friction, then tighten the
mounting screw.
E.
Insert a 0.004-inch feeler gauge between the
sensor and the
magnetic rotor. The gauge should fit loosely.
F.
Move the head carriage assembly and observe the
rotor.
should revolve without touching the sensor.
The rotor
LINE FEED SOLENOID ADJUSTMENT
A.
Remove printer covers.
B.
Loosen the two solenoid mounting bolts located on
the outside of
the left printer mechanism side plate using
a 5/16-inch nutdriver.
C
D.
(Refer to paragraph 4.4.1.)
Fully retract the solenoid plunger (move towards
front) and
insert the thick end (0.216 inch) of the
solenoid adjustment
gauge between the solenoid housing and the
rubber O-ring.
Adjust the solenoid lock nut using a 1/4-inch
nutdriver so that
some resistance is felt when the guage is
pulled out.
5-3
5.6
5.7
LINE FEED SOLENOID ADJUSTMENT (cont'd)
E.
Insert the thin end (0.136 inch) of the solenoid adjustment
gauge between the solenoid housing and the rubber O-ring.
F.
Move the solenoid housing towards the rear of the printer mechanism,
then move the housing forward until the pawl just engages the
ratchet (without rotating the paper drive roller)
G.
Hold the solenoid housing in this position, tighten the two
solenoid mounting bolts, and then remove the solenoid adjustment
gauge
PRINT DENSITY (SPEED) ADJUSTMENT
A.
Remove printer covers.
B.
Set up printer for testing with Mini-Exerciser.
(Refer to paragraph 4.4.1.)
1.
Connect Mini-Exerciser using ribbon interface cable.
2.
Place right-hand (outer) switch on Mini-Exerciser in down
position (print spaces)
3.
Place POWER ON/OFF switch in OFF position.
4.
Place ONLINE/OFFLINE switch in OFFLINE position.
5.
Connect power cord to a 3-wire grounded 120 Vac, 60 Hz
outlet.
C.
Place POWER ON/OFF switch in ON position and observe that power
on LED illuminates.
D.
Place ONLINE/OFFLINE switch in ONLINE position. The print head
will move to the left margin, then move from the left margin to
Each time the print head reaches the
the right margin and back.
right margin and reverses direction a line feed is executed.
This action will continue until the printer is turned off or the
ONLINE/OFFLINE switch is placed in the OFFLINE position.
E.
Determine the number of times the print head moves from left to
right in one minute (lines per minute) by observing print head
movement and using a watch or clock. The proper rate is from 29
to 32 lines per minute.
F.
Adjust resistor R25 until the proper rate (29 to 32 lines per
minute) is achieved.
5-4
SECTION
6
REMOVAL AND REPLACEMENT
6.1
SCOPE OF THIS SECTION
This section contains removal and replacement procedures which should
be performed by trained service personnel.
Some procedures require special
tools and adjustments.
Replacement of the covers and line fuse F1 is contained
in Section 4.
WARNING
Place power switch in the OFF position
and remove plug from the wall outlet
before performing any procedures in
this section.
6.2
MECHANISM ASSEMBLY (See Figure 6-1)
When replacing the mechanism assembly, be certain to observe the
caution before step e.
a.
See power removal WARNING (paragraph 6.1).
Remove the top cover
and body cover as detailed in paragraph 4.4.1.
b.
Carefully unplug the ribbon connector from J001 at the middle of
the printed circuit board and unplug the line feed solenoid
connector from J003.
c.
Release the mechanism assembly from the printer base by pulling
out slightly on the retaining tabs at both sides. Lift the
mechanism assembly up and out.
d.
Carefully unplug the ribbon cable from the connector on the
carriage and save the cable for the replacement mechanism.
CAUTION
Before installing replacement mechanism
assembly, check/adjust the following
clearances: print head to platen, Hall
effect sensor to magnetic rotor, and
line feed solenoid clearances as detailed
in Section 5.
IMPORTANT - Move the
carriage to the right side before installing the replacement mechanism
assembly; otherwise, the RTP actuator
arm may erroneously be positioned to
the left side of the RTP assembly, which
would result in damage to the carriage
rack.
6-1
00903
TOP COVER
ASSEMBLY
BODY COVER
ASSEMBLY
MECHANISM
ASSEMBLY
RETAINING
TAB
LOCATOR
SLOT IN
BASE
Figure 6-1.
MECHANISM ASSEMBLY REPLACEMENT
6-2
(1
OF 2)
6.3
e.
Install the replacement mechanism assembly by carefully indexing
the side plates into the locator slots in the base, then lock the
retaining tabs into the slots on the side plates.
f.
Install the ribbon cable, plugging it carefully into the sockets
on the carriage and the printed circuit board. The ribbon cable
must loop behind the strain-relief bar on the carriage assembly.
g.
Plug the solenoid connector into J003 and reassemble the body
cover and top cover as detailed in paragraph 4.4.1.
PCB LOGIC BOARD (See Figure 6-2)
When replacing the logic pcb, removal of the assemblies is required
as follows
a.
See power removal WARNING (paragraph 6-1).
assemblies as detailed in paragraph 4.4.1.
b.
Remove the mechanism assembly per paragraph 6.2.
c.
Remove one Phillips-head screw at the left front corner of the
PCB and two Phillips-head screws at transformer T1. Save the
transformer heat shield and plastic high voltage (fuse) shield
for replacement.
Remove the cover
CAUTION
When removing the pcb from the base,
or when inserting the replacement pcb,
take care not to damage the switches,
which extend out of the front panel.
d.
Disengage the rear edge of the pcb by sliding it toward the
front. Lift up at the rear edge and carefully pull the pcb
out
of the base, disengaging the line cord strain relief from
the
base.
e.
Install the replacement pcb, making certain that the shields from
step c. are properly installed, and that the line cord
strain
relief is indexed properly at the rear of the base. Refer
to
steps d., c, b., and a. as required for reassembly.
6-3
00902
BODY
COVER
PCB MOUNTING
SCREW (1 OF
3)
PCB LOGIC
BOARD
TRANSFORMER T1
HEAT SHIELD
HIGH VOLTAGE
(FUSE) SHIELD
Figure 6-2.
LOGIC BOARD REPLACEMENT
6-4
6.4
LINE FEED SOLENOID ASSEMBLY (See Figure 6-3)
To replace the line feed solenoid assembly, removal of the assemblies
is required as follows:
6.5
a.
See power removal WARNING (paragraph 6.1).
assemblies as detailed in paragraph 4.4.1.
b.
Remove the mechanism assembly per paragraph 6.2.
c.
Remove two solenoid mounting screws from the left side plate.
d.
Remove the solenoid assembly and plastic pawl arm by lifting up
on the solenoid to disengage the pawl from the line feed roller
ratchet.
e.
If required, remove the pawl arm from the solenoid clevis by
removing the small retaining ring and pulling the clevis pin out.
Save the pawl arm and hardware for the replacement solenoid
assembly.
f.
Before installing the replacement solenoid assembly, check the
clearance from the bottom of the solenoid bracket to the rubber
O-ring as detailed in Section 5.
g.
Install the pawl arm on the replacement solenoid and mount the
solenoid assembly on the left side plate, passing the pawl arm
through the nylon guide and engaging the pawl into the ratchet on
the roller.
h.
Check the solenoid throw tolerance as detailed in Section
5, and
change the solenoid position as required for reliable line feed
actuation.
i.
Install the mechanism assembly and cover assemblies.
steps b. and a. as required.
Remove the cover
Refer to
CARRIAGE RACK, MOLDED (See Figure 6-4)
To replace the carriage rack, removal of the assemblies and lower
carriage shaft is required as follows:
a.
See the power removal WARNING (paragraph 6.1).
assemblies as detailed in paragraph 4.4.1.
b.
Remove the mechanism assembly per paragraph 6.2.
c.
On the left side plate, remove the rack tension leaf spring
mounting screw with a 1/4-inch nutdriver. Remove the retaining
ring from the end of the lower carriage shaft and the retaining
ring inside the left side plate.
6-5
Remove the cover
SOLENOID MOUNTING
SCREW (1 OF 2)
Figure 6-3.
LINE FEED SOLENOID REPLACEMENT
LEFTSIDE
PLATE
RETAINING RINGS
(NOTE ORIENTATION)
Figure 6-4.
CARRIAGE RACK REPLACEMENT
6-6
d.
On the right side plate, remove only the inside retaining ring
from the lower carriage shaft.
e.
Carefully slide the carriage shaft out of the right end plate.
With the carriage shaft removed, the molded rack may now be
removed.
CAUTION
The rack is not symmetrical, and must
be installed so that the teeth are provided at the left end for the RTP
function. The end with more teeth is
also identified by a molded stud on the
end.
f.
Insert the replacement rack, observing the CAUTION above. Insert
the carriage shaft and orient the retaining ring on the right end
so that it does not interfere with the end of the rack.
Insert
all retaining rings in this manner.
g.
Insert the rack tension leaf spring so that it tightens the
rack.
h.
6.6
Install the mechanism assembly and cover assemblies, referring to
steps b. and a. as required.
BASE COVER ASSEMBLY (See Figure 6-5)
To replace the base cover, remove the assemblies as follows:
6.7
a.
See the power removal WARNING (paragraph 6.1).
assemblies per paragraph 4.4.1.
b.
Remove the mechanism assembly per paragraph 6.2.
c.
Remove the logic pcb per paragraph 6.3.
d.
Remove the base cover cap from the old base and insert it into
the front panel hole at the same location on the replacement
base cover assembly.
e.
Reinstall all assemblies on the replacement base cover.
to steps c, b. and a. as required.
Remove the cover
Refer
BODY COVER ASSEMBLY (See Figure 6-5)
To replace the body cover assembly, proceed as follows:
a.
See the power removal WARNING (paragraph 6.1).
assemblies per paragraph 4.4.1.
b.
Install the replacement body cover assembly consisting of the
body cover, soundproofing, ribbon drive motor assembly, capstan
and ribbon tensioner.
c.
Install a new ribbon.
6-7
Remove the cover
00901
TOP COVER
ASSEMBLY
BODY COVER
MOUNTING
SCREEN (1 OF
5)
BODY COVER
ASSEMBLY
MECHANISM
ASSEMBLY
PCB LOGIC
BOARD
BASE
BASE COVER
ASSEMBLY
COVER
CAP
TRANSFORMER
HIGH VOLTAGE
SHIELD
HEAT SHIELD
Figure 6-5.
BASE AND BODY COVER ASSEMBLY REPLACEMENT
6-8
6.8
HEAD-CARRIAGE ASSEMBLY (See Figure 6-6)
Replacement of the head-carriage assembly requires removal of
the
assemblies as follows:
a.
See power removal WARNING (paragraph 6.1).
assemblies per paragraph 4.4.1.
b.
Remove the mechanism assembly per paragraph 6.2.
Remove the cover
CAUTION
When removing the carriage shafts, take
care not to score the shafts, as this
could result in rough carriage movement or excessive wear of the carriage.
Also, the carriage must be supported
and handled carefully during removal
and replacement.
c.
Remove the two outside retaining rings from the carriage
shafts
at the right side plate.
Then, remove the four inside retaining
rings from the carriage shafts.
d.
Remove the rack tension leaf spring from the left side
plate
using a 1/4-inch nutdriver.
e.
Carefully press the right ends of the carriage shafts through
the
side plate, and move them out through the left side
plate.
f.
Remove the molded rack from the mechanism assembly and set
the
defective head-carriage assembly aside.
g.
Align the replacement head-carriage assembly and insert
the nylon
rack through the carriage bushings, then index the
ends of the
rack into the slots in the side plates.
See CAUTION below.
CAUTION
The rack is not symmetrical, and must be
installed so that the end with the molded
stud is at the left side plate. The
additional rack teeth are required for the
RTP function.
h.
Install the carriage shafts and rack tensioner leaf spring,
referring to steps e., d., and c. as required. See NOTE
below.
NOTE
Before installing the mechanism assembly
on the base, perform the clearance check/
adjustment on the head-carriage assembly
for the printhead to platen gap and the
Hall effect sensor (Column Sense) and rotating magnet gap.
l.
Install the mechanism assembly and cover assemblies, referring
to
steps b. and a. as required.
6-9
00905
Figure 6-6.
6.9
HEAD-CARRIAGE ASSEMBLY REPLACEMENT
PLATEN ASSEMBLY (See Figure 6-7)
Replacement of the head-carriage assembly requires removal of the
assemblies as follows:
a.
See power removal WARNING (paragraph 6-1).
assemblies per paragraph 4.4.1.
b.
Remove the mechanism assembly per paragraph 6.2.
c.
Remove one mounting screw from the side plate at each end of the
platen using a 1/4-inch nutdriver.
d.
Remove the defective platen assembly by lifting upward at each
Remove the cover
end.
e.
Install the prealigned replacement platen assembly by inserting
it firmly into the index slot at each side plate.
Insert and
tighten the mounting screws.
f
Check the printhead to platen gap and adjust if required per
Section 5.
6-10
g.
Install the mechanism assembly and cover assemblies, referring to
steps b. and a. as required.
Figure 6-7.
PLATEN ASSEMBLY REPLACEMENT
6-11
SECTION 7
SUPPORTING ILLUSTRATIONS
This section contains schematic diagrams of the two printed
circuit
boards in the Line Printer II. The schematics of the two
boards are as
follows
^2H££
7-1
7-2
Title
Drawing No.
Schematic Diagram, P.C.B. Logic Bd.
Schematic Diagram, P.C.B. Flyback Protect Bd.
7-1
63669422-9001
63669416-9001
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SECTION 8
ILLUSTRATED PARTS BREAKDOWN
8.1
INTRODUCTION
This section contains the mechanical parts breakdown, electrical
parts breakdown and numerical index list for the Line Printer II. The
section is organized as follows:
8.3
8.4
8.5
8.2
Mechanical Parts Breakdown
Electrical Parts Breakdown
Numerical Index List
ABBREVIATIONS
The following abbreviations are used in the mechanical and electrical
parts breakdowns.
A/R
As Required
Assembly
Ceramic
Diameter
Electrolytic
Hexagon
Head
Integrated Circuit
Assy.
Cer.
Dia.
Elctlt.
Hex.
Hd.
i.e.
in.
inch
Long
millimeter
Printed Circuit Board
Radial
Socket
Tubular Axial
Transistor
Lg.
mm
P.C.B.
Rdl.
Soc.
TBAX
XSTR
8-1
Figure 8-1.
LINE PRINTER II
8-2
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COVER
X
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ASSEMBLY
63669372
LL
BODY
II
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en
en
2201
2001
GUIDE,
3001
CC
LT
COVER
D
LL
O
63669241
63669324
u_
PAPER
TOP
PRINTER
63669336
LL.
TOP
LOGO
en
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TRS
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8.3
MECHANICAL PARTS BREAKDOWN
The mechanical parts breakdown is illustrated in Figures 8-1 through
The breakdown contains illustrations and lists of materials exploding
and subassemblies down to a piece part level. The four columns
assemblies
all
materials are described below.
lists
of
the
of
8-8.
8.3.1
FIGURE AND ITEM NUMBER
The first two numbers in the column are the figure numbers and
The third number is the
the beginning of each list of material.
at
appear
part item number and appears on the illustration. Numbers prefixed with an A
Item numbers are used to
(i.e., A1, A2, etc.) present attaching hardware.
assist in locating a part in the list of materials when a part is visually
identified or a part number has been located in the numerical index list.
8.3.2
PART NUMBER
This column contains the manufacturer's part number. Part numbers
are used exclusively to identify parts. The last four digits of the part
number designate the type of part as follows:
DASH NUMBER
-1XXX
-2XXX
-3XXX
-4XXX
-5XXX
-6XXX
-9XXX
8.3.3
TYPE OF PART
Electrical Piece Part
Mechanical Piece Part
Label, Nameplate, Etc
Electrical Assembly
Mechanical Assembly
Kit
Reference Material
DESCRIPTION
This column provides a brief description of the indexed part.
8.3.4
QUANTITY
This column indicates the number of piece parts used in the specific
assembly or subassembly.
8-4
(This page intentionally blank)
8-5
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8-6
LIST OF MATERIALS
BODY COVER ASSEMBLY
(Figure 8-2)
ITEM
8-2-1
-2
-3
-4
-5
-6
-7
PART NUMBER
63669209-2001
63669280-2001
63669208-2001
63669210-2001
36700028-2002
63669242-5201
63669450-5001
DESCRIPTION
QTY.
Ribbon Stripper, Drive
Ribbon Roller, Driver
Ribbon Roller, Driver
Pivot, Ribbon Stripper
Spring
Body Cover
Assembly, Ribbon Tensioner
NOTE:
The ribbon tensioner assembly is
made up of items 7.1 through 7.4
which are not called out on Figure
8-2.
-7.1
-7.2
-7.3
-7.4
63669441-2001
63669439-2001
63669437-2001
63669448-2001
Bracket, Ribbon Tensioner
Tensioner, Ribbon
Hinge Pin, Ribbon Tensioner
Spring, Ribbon Tensioner
-8
63669271-4001
Assembly, Ribbon Drive Motor, 60 Hz
NOTE:
The ribbon drive motor assembly is
made up of items 8.1 through 8.3
which are not called out on Figure
8-2.
8.1
-8.2
-8.3
-9
-10
-11
-12
30420015-1001
31240036-1001
31343026-1003
Motor, Ribbon Drive
Contact, Connector Crimp, 24-18 AWG
Housing, Receptacle, 3 position, 0.045P
63669320-2001
63669306-2001
63701468-6003
63669319-2001
Bearing, Thrust
Spring, Ribbon Roller
Kit, Zip-Pack, 12 Ribbons
Button, Ribbon
- ATTACHING HARDWARE -
8-2-A1
-A2
-A3
-A4
33115555-2009
33115555-2013
34517087-2001
34000455-2003
Retaining Ring, Ext., 0.185 Shaft
Retaining Ring, Ext., 0.250 Shaft
Screw, Pan Hd. Phillips, #4-40 x .25 in. Lg
Washer, Split Lock, M2.5
8-7
1
1
2
2
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3
8-8
LIST OF MATERIALS
MECHANISM ASSEMBLY
(Figure 8-3, Sheet 1)
ITEM
8-3-1
-2
PART NUMBER
63669276-5001
63680170-5001
DESCRIPTION
Assembly, Slide Plate, Left
Assembly, Hex Platen, Pinned
NOTE:
63680169-2001
63680168-2001
34000205-2003
Platen, Hex, Pinned
Stripper, Paper, Pinned
Screw, Round Head, #2 x .25 in. Lg.
-3
63680115-5001
Assembly, Pin Feed Rollers
-3.1
-3.2
-3.3
-3.4
-4
-5
-6
-7
-8
-9
1
1
The pinned hex platen assembly is
made up of items 2.1 through 2.3
which are not called on on Figure
8-3, Sheet 1.
-2.1
-2.2
-2.3
NOTE:
QTY.
The pin feed roller assembly is
made up items 3.1 through 3.4
which are not called out on
Figure 8-3, Sheet 1
63669288-2001
36350009-2001
33150000-2009
63680117-2001
Paper Roller
O-Ring, 0.921 I.D.
Dowell Pin, 0.062 Dia. x 0.250 in. Lg,
Roller Tractor Drive
63669256-5001
63669305-2001
34000190-2017
63669240-2001
63669142-2001
63669278-5001
Assembly, Side Plate, Right
Spacer, Paper Roller Drive
Washer, Spring, #1/4 x 0.49 O.D.
Rack, Carriage, Molded
Shaft, Carriage
Assembly, Head/Carriage
1
6
6
2
- ATTACHING HARDWARE -
8-3-A1
-A2
-A3
-A4
-A5
33115133-2024
34527167-2001
34828007-2001
34922107-2001
33115131-2012
Retaining Ring, Ext., 0.375 Shaft
Screw, Pan Hd. Phillips, #6-32 x .50 in. Lg,
Washer, Split Lock, #6
Washer, Flat #6
Retaining Ring, Ext. Bow, 0.375 Shaft
8-9
2
2
2
2
2
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8-10
LIST OF MATERIALS
MECHANISM ASSEMBLY
(Figure 8-3, Sheet 2)
ITEM
PART NUMBER
DESCRIPTION
8-3-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
63669142-2001
63669255-2001
63669259-2001
63669260-2001
36700033-2001
63669379-2001
63669196-2001
63669197-2001
63669303-2001
63669258-2001
63669304-2001
63669202-2001
63669254-5001
Shaft, Carriage, Upper
Full Pan, Paper Feed
Release Lever
Shaft, Release Lever
Spring, Ext. 0.18 Dia. x 0.62 in. Lg.
Spring, Blocker
Roller, Detent
Bracket, Detent
Spring, Detent
Cam, Release
Arm Disengagement, Right
Shaft, Yoke Pivot
Assembly, Paper Pinch Rollers
-11
-12
-13
NOTE:
•13.1
63669167-2001
13.2 63669322-2001
13.3 63669235-2001
•14
15
63669385-2001
63669304-2002
The paper pinch rollers assembly
is made up items 13.1 through 13.3.
Roller
Shaft, Roller
Yoke
Blocker, Line Feed
Arm Disengagement, Left
- ATTACHING HARDWARE -
8-3-A1
-A2
-A3
33115133-2024
33115131-2020
33115133-2020
OTY.
Retaining Ring Ext. 0.375 Shaft
Retaining Ring Ext. Bow 0.375 Shaft
Retaining Ring Ext. 0.188 Shaft
8-11
12
6
3
1
1
A3
}2
A9
A8
<
\
A2
A1
A3
13
Figure 8-4.
PRINT HEAD/CARRIAGE ASSEMBLY
8-12
LIST OF MATERIALS
PRINT HEAD/CARRIAGE ASSEMBLY
(Figure 8-4)
ITEM
PART NUMBER
8-4-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
62001100-5005
63669279-2001
63669262-2001
63669311-2004
63669321-2001
63669315-2001
63669330-2001
63669555-5001
211010001-1001
63669264-4001
DESCRIPTION
FF Head Assembly, 7 Wire Flex Circuit
Head Adaptor
Cam, Head Gap Adjustment
Shaft, Ribbon Roller
Pin Ribbon Roller
Ribbon Roller, Head Adaptor
Adapter, Flex Circuit
Assembly, Carriage and Shafts
Capacitor, Ceramic Disc, 100 pf, 1KV, 20%
Assembly, Motor Drive
NOTE:
10.1 30420014-1001
-10.2 63669263-2001
11
-12
•13
63669327-2001
63669185-2001
63669267-5001
-13.2 63669295-2001
14
15
16
63669186-2001
63669338-4001
63669316-2001
1
1
1
2
2
2
1
1
1
1
The motor drive assembly is made up
items 10.1 and 10.2 which are not
called out on Figure 8-4.
Motor, Carriage Drive
Pinion, Motor
Holder Sensor
Gear Cluster, 16/60
Assembly, Rotor
NOTE:
13.1 63669266-2001
QTY.
The rotor assembly is made up of
items 13.1 and 13.2 which are not
called out on Figure 8-4.
Gear , Rotor
Magnetic Rotor, Large Hex
Gear Cluster, 16/56
Assembly, Ribbon Cable 7 Wire Hd.
Bushing, Eccentric Carriage
- ATTACHING HARDWARE -
8-4-A1
-A2
-A3
-A4
-A5
-A6
-A7
-A8
-A9
-A10
-A11
34004407-2001
34912087-2001
33115100-2002
34136237-2001
34838007-2001
34933126-2001
34000452-2003
34000455-2003
34000352-2022
33115555-2009
33922061-2001
Screw, Cruciform Head, .50 in. Lg.
Washer, Flat, #4
Retaining Ring, Ext. 0.125 in. Shaft
Screw, Cap, Hex hd. #8-32 x .72 in. Lg.
Washer, Split Lock, #8
Washer, Flat, #8
Washer, Flat, M2
Washer, Split Lock, M2.5
Screw, Fillister Head Slotted, M2 x 8 mm Lg.
Retaining Ring, Ext., 0.185 Shaft
Set-Screw, Cup Point, #6-32 x .187 in. Lg.
8-13
2
2
5
2
2
2
2
2
2
1
1
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to
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3
8-14
LIST OF MATERIALS
LEFT/RIGHT SIDE PLATE ASSEMBLIES
(Figure 8-5)
ITEM
8-5-1
-2
-3
-4
PART NUMBER
63669205-2001
63669187-2001
63669342-2001
63669312-5002
DESCRIPTION
Clip, Spring
Side Plate, Left
Bumper Pad
Assembly, Hinge Pin
NOTE:
-4.1
-4.2
-5
-6
-7
-8
-9
1
1
2
2
The hinge pin assembly is made
up of items 4.1 and 4.2 which are
not called out in Figure 8-5.
63669427-2001
63669313-2001
Hinge Pin
Washer, Hinge Pin
36000045-2001
63669190-2001
63669183-2001
63669236-2001
63669287-4001
Bushing, Nylon, 0.252 I.D.
Ratchet Pawl
Side Plate, Right
Pawl Guide, Molded
Assembly, Solenoid
NOTE:
The solenoid assembly is made
up of items 9.1 through 9.6
which are not called out in
Figure 8-5.
-9.2
-9.3
-9.4
-9.5
-9.6
30458629-1001
34000079-2001
39648505-000731240036-1001
31343026-1002
36350010-2001
Switch, Solenoid, Size F
Nut, Hex, Nylon, #5-40
Wire, Type B, 20 AWG, White
Contact, Connector Crimp, 24-18 AWG
-10
63669557-2001
Clevis Pin, Solenoid
-9.1
Housing, Receptacle,
O-Ring, 0.114 I.D.
2
Position
- ATTACHING HARDWARE -
8-5-A1
-A2
-A3
-A4
34000202-2001
34000451-2056
34000105-2001
33115116-2009
Screw, Hex Hd., #8-32 x .25 in. Lg.
Washer, Split Lock, Ext. Tooth, M4
Screw, Self Threading, #6-32
Retaining Ring, Ext. 0.091 Shaft
8-15
QTY.
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8-16
LIST OF MATERIALS
BASE COVER ASSEMBLY
(Figure 8-6)
ITEM
PART NUMBER
8-6-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
63669243-5070
-
63669348-2002
63669395-2001
63669480-2001
36350051-2001
63669349-3001
63669412-2001
63669326-2001
63669350-3001
DESCRIPTION
Base Cover
P.C.B., Logic Board Assembly
Shield, High Voltage
Foam, P.C. Board
Shield, Transformer
Bumper, 0.12 in. x 0.50 in.
Label, Power
Heat Shield, Transformer
Cap, Base Cover
Label, Reset
- ATTACHING HARDWARE -
8-6-A1
-A2
-A3
34922105-2001
34825007-2001
34527167-2001
Washer, Flat #6
Washer, Split Lock, Int. Tooth #6
Screw, Pan Hd. Phillips, #6-32 x .50 in. Lg.
8-17
QTY.
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8-18
LIST OF MATERIALS
PAPER ROLL HOLDER ASSEMBLY
(Figure 8-7)
ITEM
8-7-1
-2
-3
-4
-5
-6
PART NUMBER
63669294-2001
63669292-2001
63669293-2001
63669290-2001
81700332-2001
63669291-2001
DESCRIPTION
Spring, Dancer
Axle, Roll Paper
Hub, Roll Paper
Holder, Roll Paper
Paper Guide
Dancer Bar
- ATTACHING HARDWARE -
8-7-A1
33490001-2001
Eyelet, Flange
8-19
QTY.
2
i
2
1
2
1
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8-20
LIST OF MATERIALS
KIT, MAIN ACOUSTIC
(Figure 8-8)
ITEM
PART NUMBER
-8-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
63669382-2001
63669383-2001
63669384-2001
63669380-2002
63669388-2001
63669391-2001
63680138-2001
63680140-2001
63680141-2001
63669389-2001
63669390-2001
63680137-2001
63669392-2001
63669393-2001
63680139-2001
63669400-2001
63669401-2001
63669402-2001
63669403-2001
63669406-2001
63669407-2001
63669407-2002
63669408-2001
DESCRIPTION
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Foam,
Top Cover, Front
Top Cover, Middle
Top Cover, Rear
Body Cover, Right, Front Cover
Body Cover, Side Corner
Body Cover, Side
Body Cover, Rear Corner
Body Cover, Rear Corner, Pulley Side
Body Cover, Front Cover
Body Cover, Front Middle
Body Cover, Left, Front Corner
Body Cover, Pulley Side
Body Cover, Front
Body Cover, Top
Body Cover, Middle
Base, Left, Front Corner
Base, Left, Front, Middle
Base, Right, Front, Middle
Base, Right, Front Corner
Base, Left, Rear Corner
Base, Left, Rear
Base, Right, Rear
Base, Right, Rear Corner
8-21
QTY.
8.4
ELECTRICAL PARTS BREAKDOWN
The electrical parts breakdown is shown in Figure 8-9. This breakdown
contains an illustration and list of material for the printed circuit board
used in the printer. The four columns of the electrical parts breakdown is
identical to the mechanical parts breakdown. Those items not called out by
item numbers are identified by a reference designator. The following abbreviations are used as reference designators.
REFERENCE DESIGNATC)R
C
CR
F
J
ME
P
R
S1
SW
VR
Y1
TYPE OF PART
Capacitor
Diode
Fuse
Connector (jack)
Integrated Circuit
Connector (plug)
Resistor
Sensor Assembly
Switch
Voltage Regulator
Oscillator
8-22
(This page is intentionally blank)
8-23
I
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8-24
LIST OF MATERIALS
LOGIC P.C.B. ASSEMBLY
(Figure 8-9)
ITEM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
32
33
38
40
41
42
43
44
45
46
47
48
48A
49
50
51
52
53
54
55
56
57
PART NUMBER
63669022-2001
38045400-1900
38052370-1900
38100904-1900
63669380-6001
22108006-1001
21102002-1001
21104005-1001
22105002-1001
22106003-1001
38263880-1900
38239060-1900
38239040-1900
38201200-1900
38201252-1900
38245062-1900
35205550-1900
35674273-1900
35474070-1900
35474740-1900
35474040-1900
41271926-1001
46101502-1001
41222925-1001
41000926-1001
39090010-1001
31350003-2001
31410247-2003
31301029-1003
31301029-1002
32860005-2001
32860005-2002
38100211-1001
34000453-2003
34000454-2003
34000651-2003
34000359-2087
37810690-1001
38040020-1900
62000111-3001
22106002-1001
63669503-4003
63669503-4002
31410762-1040
31410762-1024
35207800-1900
35207812-1900
41102926-1001
41472926-1001
32860010-2001
41122925-1001
30410011-1009
DESCRIPTION
PCB AW, 730 Logics w/Condensed
Semicond Diode Rect IN5400 BT
Semicond Diode TBAX 8.2 IN5237BT
Semicond Diode TBAX IN4148 BT
Kit, Capacitor Metric Thread U
Cap Elect 1000 MF 25V -10 +50%
Cap TBAX Glass or Epoxy 1000PF
Cap TBAX .1UF 50V -20 +80%
Cap ELCTLT 1UF 25V -10 +75%
Cap ELCTLT 10MF 16V -10 +75%
Semicond XSTR NPN Pwr 2N6388BT
Semicond XSTR PNP GP 2N3906 BT
Semicond XSTR GP 2N3904 BT
Semicond XSTR NPN Pwr TIP120BT
Semicond XSTR PNP Pwr EP3011BT
Semicond XSTR 2N5062BT
IC Linear Timer 555BT
IC Octal D-Type FF 74LS273BT
IC Hex Buffer/Driver 7407BT
IC Dual D-Type FF 7474BT
IC Hex Inverter 740 4BT
Res Carbon 270 Ohm 1/4W 10%
Pot Single Turn IK
Res Carbon 2.2K Ohm 1/4W 5%
Res Carbon
Ohm 1/4W 10%
Sw PC RT Angle Mount SPDT
Clip Fuse w/Ear PC Mtg .25 Dia
Socket IC 16 Pin Sldr Dip .300W
Header 3 Posn Lkg PC Mtg .045P
Header 2 Posn Lkg PC Mtg .045P
Heat Sink to-220 Base
Heat Sink to-220 Top
Semicond Led w/Leads
Wshr Fl M2.5x6.5 0.5 Thk SST SI
Wshr Lock Split M2.5 SST
Nut Hex M2. 5x0.45x2 Thk SST SI
SCR CHZ Sltd M2. 5x0. 45x10 SST
Crystal 6 Mz
Semicond Diode TBAX IN4002 BT
Warning Decal Fuse Rating
Cap ELCTLT 10UF 25V +10 +75%
I/C Assembly 8039
I/C Assembly 8049
Skt IC 40 Pin Sldr Dip .600W TP
Skt IC 24 Pin Sldr Dip .600W TP
IC Voltage Regulator 7805 BT
IC Voltage Rgltr +12V 7812 BT
Res Carbon 1K Ohm 1/4W 10%
Res Carbon 4.7K Ohm 1/4W 10%
Heat Sink 1.1 8H x LOW PC Vert
Res Carbon 1.2K Ohm 1/4W 5%
Inductor 4.7UH Hvy Dty
8-25
QTY.
1.0000
4.0000
1.0000
5.0000
1.0000
1.0000
1.0000
12.0000
1.0000
3.0000
8.0000
4.0000
2.0000
1.0000
1.0000
2.0000
1.0000
1.0000
2.0000
2.0000
3.0000
2.0000
1.0000
3.0000
1.0000
2.0000
2.0000
1.0000
1.0000
1.0000
2.0000
2.0000
1.0000
6.0000
4.0000
4.0000
4.0000
1.0000
6.0000
1.0000
1.0000
1.0000
A/R
2.0000
1.0000
2.0000
i.oooo
19.0000
4.0000
2.0000
1.0000
1.0000
LIST OF MATERIALS
LOGIC P.C.B. ASSEMBLY
(Figure 8-9)
(cont'd)
ITEM
58
61
62
63
64
65
67
68
69
70
71
72
76
77
78
79
80
81
82
83
84
85
86
DESCRIPTION
PART NUMBER
32860009-2001
35674174-1900
41103926-1001
41155926-1001
22205000-1001
35474320-1900
35202316-1007
35578156-1001
41821926-1001
41152926-1001
41201926-1001
63669438-5001
41151926-1001
39092508-1001
21103007-1001
21120000-1001
33490001-2014
39695333-2002
39660041-1001
30468359-1001
39030000-1001
63669421-4000
63669515-4001
Heat Sink Xistor to-220
IC Hex D Type FF 74LS174 BT
Res Carbon 10K Ohm 1/4W 10%
Res Carbon 1.5M Ohm 1/4W 10%
Cap ELCTLT 2UF 25V +10 +75%
IC QUADR or 2-Input 7432BT
IC ROM Code 2316 P730C0. 015
IC 2048-B Rndm Access Mem 8156
Res Carbon 820 Ohm 1/4W 10%
Res Carbon 1.5K Ohm 1/4W 10%
Res Carbon 200 Ohm 1/4W 10%
Assy, RTP Switch
Res Carbon 150 Ohm 1/4W 10%
Switch Block 4 Posn PC Mtg
Cap Cer Disc .01UF 50V 20%
Cap Cer Disc 12PF 500V 20%
Eyelet Flange .183D x .156L BRS 4B
Strap Cable Adj Lkg 1.12BDL
Cord 3/C 18 AWG w/Pl 73 IN.
Xfmr 117V /25.2V CT
Fuse GL .25 Dia 1A Slow 1.25L
PCB A, 730 Lgc, w/Cond PRL, Basic
PCB A 730 Flyback Protect Bd
REFERENCE DESIGNATORS
P.C.B. LOGIC BOARD ASSEMBLY
(Figure 8-9)
REFERENCE DESIGNATOR
ITEM
4
CR1, CR2, CR3, CR4
CR10
CR9, CR14, CR15, CR16, CR17
5
C1
6
7
C2
C13
8
C5, C6, C8, C9, C15, C16, C18, C19, C20, C21, C22, C17
9
C12
10
C4,
Q9,
Q3,
Q4,
2
3
11
12
13
14
15
16
17
18
19
20
21
C7, C10
Q10, Q11, Q12, Q13, Q14, Q15, Q16
Q5, Q6, Q8
Q7
Q18
Q17
Q2, Q1
ME6
ME8
ME12, ME14
ME4, ME5
ME1, ME2, ME9
8-26
OTY.
1.0000
1.0000
15.0000
1.0000
1.0000
1.0000
A/R
1.0000
8.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
2.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
REFERENCE DESIGNATORS
P.C.B. LOGIC BOARD ASSEMBLY
(Figure 8-9)
(cont'd)
ITEM
REFERENCE DESIGNATOR
22
23
R38, R62
R61
24
25
26
28
29
30
38
44
45
47
48
R45, R49, R53
R59
SW1, SW2
J001
51
52
53
54
56
57
61
62
63
64
65
67
68
69
70
71
76
77
78
79
100
J002
J003
DS1
Y1
CR12, CR13; CR5, CR6, CR7, CR8
C3
ME13
VR1, VR3
VR2
RIO, R11, R12, R18, R19, R20, R22, R23, R33, R40, R41, R42, R46,
R48, R51, R55, R57, R58, R43
R44, R47, R50, R56
R52
-.
L1
ME11
R1, R2, R3, R4, R5, R6, R7, R8, R9, R14, R15, R17, R39, R63, R16
R21
C11
ME10
ME7
ME3
R29, R30, R31, R32, R34, R35, R36, R37
R54
R65
R64
SW3
C23
C24
J004
8-27
8.5
NUMERICAL INDEX LIST
The numerical index list contains all mechanical and electrical parts
cross-referenced with a figure and item number. The numerical index contains
the four columns described below.
8.5.1
PART NUMBER
This column contains the numerical listing of all mechanical and
electrical parts used in the printer.
8.5.2
DESCRIPTION
This column provides a brief description of the indexed part.
8.5.3
FIGURE AND ITEM NUMBER
This column contains the corresponding figure and item numbers for all
parts listed enabling the user to identify a known part on an illustration.
8.5.4
QUANTITY
This column contains the quantity of the part required on the figure
and item number called out.
8-28
PART NUMBER
21101001- 100
21102002- -100
21103007- 100
21104005- 100
21120000- 100
22105002- 100
22106002- 100
22106003- 100
22108006- 100
22205000- 100
30410011- 1009
30420014- •100
30420015- 100
30458629- •100
30468359- 100
31240036- •100
31240036- 100
31301029- •1002
31301029- •1003
31343026- •1003
31343026- •1002
31350003- •2001
31410247- 2003
31410762- 1024
31410762- •1040
32860005- 2001
32860005- •2002
32860009- 2001
32860010- 2001
33115100- 2002
33115116- 2009
33115131- 2012
33115131- 2020
33115133- 2020
33115133- 2024
33115133- 2024
33115555- 2009
33115555- 2009
33115555- 2013
33150000- 2009
33490001- 2009
33490001- 2014
33922061- 2001
34000079- 2001
34000105- 2001
34000190- 2017
DESCRIPTION
Capacitor, Ceramic Disc, 100 pf, 1K, 20%
Cap TBAX Glass or Epoxy 1000 pf
Capacitor, Ceramic Disc 0.01 uf, 50V, 20%
Capacitor, TBAX, 0.1 uf 50V, -20 +80%
Capacitor, Ceramic Disc, 12 pf, 500V, 20%
Capacitor, ELCTLT, 1 uf 25V, -10 +75%
Capacitor, ELCTLT, 10 uf, 25V, -10 +75%
Capacitor, ELCTLT, 10 mf, 16V, -10 +75%
Cap, Elect, 1000 mf, 25V, -10 +50%
Capacitor, ELCTLT, 2 uf, 25V, -10 +75%
Inductor 4.7 UH Hvy Dty
Motor, Carriage Drive
Motor, Ribbon Drive
Switch, Solenoid, Size F
Xfmr, 117V/25.2V CT
Contact, Connector Crimp 24-18 AWG
Contact, Connector Crimp 24-18 AWG
Header, 2 Posn, PC Mtg
Header, 3 Posn, PC Mtg
Housing, Receptacle, 3 Position 0.045P
Housing, Receptacle, 2 Position
Clip Fuse w/Ear, PC Mtg 0.25 Dia.
Socket I.C. 16 Pin
Skt., IC 24 Pin
Skt., I.C, 40 Pin
Heat Sink to-220 Base
Heat Sink to-220 Top
Heat Sink Xistor to-220
Heat Sink
Retaining Ring, Ext. 0.125 Shaft
Retaining Ring, Ext. 0.091 Shaft
Retaining Ring, Ext Bow 0.375 Shaft
Retaining Ring, Ext. Bow 0.375 Shaft
Retaining Ring, Ext. 0.188 Shaft
Retaining Ring, Ext 0.375 Shaft
Retaining Ring, Ext 0.375 Shaft
Retaining Ring, Ext
185 Shaft
Retaining Ring, Ext
185 Shaft
Retaining Ring, Ext
250 Shaft
Dowel Pin, 0.062 Dia
0.250 in. Lg.
Eyelet, Flange
Eyelet, Flange
Set-Screw, Cup Point, #6-32 x .187 in. Lg.
Nut, Hex, Nylon #5-40
Screw, Self Threading #6-32
Washer, Spring #1/4 x 0.49 O.D.
8-29
FIGURE
NUMBER
8-4
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-4
8-2
8-5
8-9
8-2
8-5
8-9
8-9
8-2
8-5
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-4
8-5
8-3/1
8-3/2
8-3/2
8-3/1
8-3/2
8-2
8-4
8-2
8-3/1
8-7
8-9
8-4
8-5
8-5
8-3/1
INDEX
NUMBER
QTY.
9
1
7
1
78
1
8
12
79
1
9
1
47
1
10
3
6
1
64
57
10.1
8.1
9.1
83
8.2
9.4
30
29
8.3
9.5
27
28
50
49
32
33
58
55
A3
A4
A5
A2
A3
A1
A1
A1
A10
A2
1
1
1
1
1
1
2
2
1
1
1
1
2
1
1
2
2
2
1
2
5
1
2
2
2
2
2
1
1
1
3.3
6
A1
4
80
2
A11
9.2
A3
6
1
1
1
1
PART NUMBER
34000202-2001
34000205-2003
34000352-2022
34000359-2087
34000451-2056
34000452-2003
34000453-2003
34000454-2003
34000455-2003
34000455-2003
34000651-2003
34004407-2001
34136237-2002
34517087-2001
34527167-2001
34527167-2001
34825007-2001
34828007-2001
34838007-2001
34912087-2001
34922105-2001
34922107-2001
34933126-2001
35202316-1007
35205550-1900
35207800-1900
35207812-1900
35474040-1900
35474070-1900
35474320-1900
35474740-1900
35578156-1001
35674174-1900
35674273-1900
36000045-2001
36350009-2001
36350010-2001
36350051-2001
36700028-2002
36700033-2001
37810690-1001
38040020-1900
38045400-1900
38052370-1900
38100211-1001
38100904-1900
DESCRIPTION
FIGURE
NUMBER
Screw, Hex Hd. #8-32 x .25 in. Lg.
8-5
Screw, Round Head, #2 x .25 in. Lg.
8-3/1
Screw, Fillister Hd. Slotted M2 x 8 mm Lg.
8-4
Screw, Fillister Head, Slotted M2.5x10 mm Lg. 8-9
Washer, Split Lock, Ext. Tooth M4
8-5
8-4
Washer, Flat, M2
Washer , Flat , M2 .
8-9
Washer, Split Lock, M2.5
8-9
Washer, Split Lock, M2.
8-2
Washer, Split Lock, M2.5
8-4
Nut, Hex, M2.5
8-9
Screw, Cruciform Head .50 in. Lg.
8-4
Screw, Cap, Hex Head, #8-32 x .72 in. Lg.
8-4
8-2
Screw, Pan Hd. Phillips 4-40 x .25 in. Lg.
Screw, Pan Hd. Phillips #6-32 x .50 in. Lg.
8-3/1
Screw, Pan Hd. Phillips #6-32 x .50 in. Lg.
8-6
Washer, Split Lock, Int. Tooth, #6
8-6
Washer, Split Lock, #6
8-3/1
Washer, Split Lock, #8
8-4
Washer, Flat, #4
8-4
Washer, Flat, #6
8-6
Washer, Flat, #6
8-3/1
Washer, Flat, #8
8-4
IC ROM 2316
8-9
I.C., Linear Timer 555
8-9
I.C., Voltage Regulator 7805
8-9
I.C., Voltage Regulator +12V 7812
8-9
I.C., Hex Inverter 7404
8-9
I.C., Hex Buffer/Driver 7407
8-9
I.C., Quadr OR 2-Input 7432
8-9
I.C., Dual D-Type FF 7474
8-9
I.C., 2048-B RAM 8156
8-9
8-9
I.C., Hex D-Type FF 74LS174
I.C., Octal D-Type FF 74LS273
8-9
Bushing Nylon 0.252 I.D.
8-5
O-Ring 0.921 I.D.
8-3/1
O-Ring 0.114 I.D.
8-5
8-6
Bumper, 0.12 in. x 0.50 in.
Spring
8-2
Spring Ext. 0.18 Dia. x 0.62 in. Lg.
8-3/2
8-9
Crystal 6 Mz
Diode
TBAX
8-9
Semicond
IN4002
8-9
Semicond Diode Rect. IN5400
Semicond Diode TBAX 8.2 IN5237
8-9
Semicond LED w/Leads
8-9
Semicond Diode TBAX
8-9
8-30
INDEX
NUMBER
OTY.
A1
2
2.3
3
A9
2
43
4
A2
A7
2
40
6
2
41
4
A4
A8
2
42
A1
4
A4
A3
A2
A3
A2
A3
A5
A2
2
A1
3
A4
A6
2
67
A/R
2
2
2
2
3
3
2
2
2
2
17
1
51
2
52
1
21
3
19
2
65
20
68
2
61
1
1
1
18
1
5
2
3.2
9.5
6
6
4
1
5
1
5
2
44
45
6
2
4
3
1
38
4
1
1
5
PART NUMBER
38201200--1900
38201252--1900
38239040--1900
38239060--1900
38245062--1900
38263880--1900
39030000-•100
39090010-100
39092508-100
39660041-100
39695333-2002
41000926-100
41103926-100
41102926-100
41122925-100
41151926-100
41152926-•100
41155926-•100
41201926-•100
41222925-•100
41271926-100
41472926-•100
41821926-•100
46101502-100
62000111- 300
62001100- 5005
63669022- 200
63669142- 200
63669142- 200
63669167- 200
63669183- 200
63669185- 200
63669186- 200
63669187- 200
63669190- 200
63669196- 200
63669197- 200
63669202- 200
63669205- 200
63669208- 200
63669209- 200
63669210- 200
63669235- 200
63669236- 200
63669240- 200
63669242- 520
FIGURE
NUMBER
DESCRIPTION
Seraicond, XSTR, NPN, Pwr, TIP120
Semicond, XSTR, PNP, Pwr, EP3011
Semicond, XSTR GP 2N3904
Semicond, XSTR, PNP, GP, 2N3906
Semicond, XSTR 2N5062
Semicond, XSTR, NPN, Pwr, 2N6388BT
Fuse Glass .25 Dia 1 Amp Slow Blow
Switch, PC Right Angle Mount, SPDT
Switch Block, 4 Position
Cord, 18 AWG, 6 Ft.
Strap Cable
Resistor, Carbon,
Ohm, 1/4W, 10%
Resistor, Carbon, 10K Ohm, 1/4W, 10%
Resistor, Carbon, 1K Ohm, 1/4W, 10%
Resistor, Carbon, 1.2K Ohm, 1/4W, 5%
Resistor, Carbon. 150 Ohm, 1/4W, 10%
Resistor, Carbon, 1.5K Ohm, 1/4W, 10%
Resistor, Carbon, 1.5M Ohm, 1/4W, 10%
Resistor, Carbon, 200 Ohm
Resistor, Carbon, 2.2K Ohm, 1/4W, 5%
Resistor, Carbon, 270 Ohm, 1/4W, 10%
Resistor, Carbon, 4.7K Ohm, 1/4W, 10%
Resistor, Carbon, 820 Ohm, 1/4W, 10%
Pot Single Turn 1K
Warning Decal Fuse Rating
FF Head Assembly, 7 Wire Flex Circuit
P.C.B. Artwork Logic
Shaft, Carriage
Shaft, Carriage, Upper
Roller
Side Plate, Right Hand
Gear Cluster, 16/60
Gear Cluster, 16/56
Side Plate, Left Hand
Ratchet Pawl
Roller, Detent
Bracket, Detent
Shaft, Yoke Pivot
Clip, Spring
Ribbon Roller, Driven
Ribbon Stripper, Drive
Pivot, Ribbon Stripper
Yoke
Pawl Guide, Molded
Rack, Carriage, Molded
Body Cover
*
I
*
8-31
8-19
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-9
8-4
8-9
8-3/1
8-3/2
8-3/2
8-5
8-4
8-4
8-5
8-5
8-3/2
8-3/2
8-3/2
8-5
8-2
8-2
8-2
8-3/2
8-5
8-3/1
8-2
INDEX
NUMBER
14
OTY.
1
15
13
2
12
4
1
16
2
11
8
84
26
77
82
1
2
1
1
81
1
25
62
53
15
19
56
76
70
63
1
1
1
1
1
71
1
24
22
2
54
69
3
4
8
23
46
1
1
8
1
13.1
7
12
14
2
6
7
8
12
1
3
1
4
13.3
8
7
6
12
PART NUMBER
63669243-5070
63669254-5001
63669255-2001
63669256-5001
63669258-2001
63669259-2001
63669260-2001
63669262-2001
63669263-2001
63669264-4001
63669266-2001
63669267-5001
63669271-4001
63669276-5001
63669278<5001
63669279-2001
63669280-2001
63669287-4001
63669288-2001
63669290-2001
63669291-2001
63669292-2001
63669293-2001
63669294-2001
63669295-2001
63669303-2001
63669304-2001
63669304-2002
63669305-2001
63669306-2001
63669311-2004
63669313-2001
63669315-2001
63669316-2001
63669319-2001
63669320-2001
63669321-2001
63669322-2001
63669326-2001
63669327-2001
63669330-2001
63669338-4001
63669342-2001
63669348-2002
63669349-3001
63669350-3001
DESCRIPTION
Base Cover
Assembly, Paper Pinch Rollers
Full Pan, Paper Feed
Assembly, Side Plate Right
Cam, Release
Release Lever
Shaft, Release Lever
Cam, Head Gap Adjustment
Pinion, Motor
Assembly, Motor Drive
Gear , Rotor
Assembly, Rotor
Assembly, Ribbon Drive Motor, 60 Hz
Assembly, Side Plate, Left
Assembly, Head/Carriage
Head Adapter
Ribbon Roller, Driver
Assembly, Solenoid
Paper Roller
Holder, Paper Roll
Dancer Bar
Axle, Roller Paper
Hub, Roll Paper
Spring, Dancer
Magnetic Rotor, Large Hex
Spring, Detent
Arm Disengagement, Right Hand
Arm Disengagement, Left Hand
Spacer, Paper Roller Drive
Spring, Ribbon Roller
Shaft, Ribbon Roller/Insert
Washer, Hinge Pin
Ribbon Roller Head Adapter
Bushing, Eccentric Carriage
Button, Ribbon
Bearing, Thrust
Pin Ribbon Roller
Shaft, Roller
Cap, Base Cover
Holder , Sensor
Adapter, Flex Circuit
Assembly, Ribbon Cable 7 Wire Hd.
Bumper Pad
Shield, High Voltage
Label, Power
Label, Reset
8-32
FIGURE
NUMBER
8-6
8-3/2
8-3/2
8-3/1
8-3/2
8-3/2
8-3/2
8-4
8-4
8-4
8-4
8-4
8-2
8-3/1
8-3/1
8-4
8-2
8-5
8-3/1
8-7
8-7
8-7
8-7
8-7
8-4
8-3/2
8-3/2
8-3/2
8-3/1
8-2
8-4
8-5
8-4
8-4
8-2
8-2
8-4
8-3/2
8-6
8-4
8-4
8-4
8-5
8-6
8-6
8-6
INDEX
NUMBER
QTY.
1
1
13
3
2
4
10
3
3
3
10.2
10
13.1
13
8
1
9
2
2
9
3.1
4
6
2
3
1
13.2
9
11
15
5
10
4
2
4.2
2
6
2
16
1
12
9
1
1
5
2
13.2
6
9
1
11
1
7
15
1
1
3
2
3
1
7
1
10
1
PART NUMBER
63669379 -2001
63669380 -6001
63669382 2001
63669383 -2001
63669384 -2001
63669385 -2001
63669388 -2001
63669389 -2001
63669390 -2001
63669390 -2002
63669391 •2001
63669392 2001
63669393 •2001
63669395- 2001
63669400- 2001
63669401- 2001
63669402- •2001
63669403- 2001
63669406- •2001
63669407- 2001
63669407- -2002
63669408- •2001
63669412- 2001
63669421- 4000
63669427- 2001
63669437- 2001
63669438- 5001
63669439- 2001
63669441- 2001
63669448- 2001
63669450- 5001
63669480- 2001
63669503- 4002
63669503- 4003
63669515- 4001
63669555- 5001
63669557- 2001
63680115- 5001
63680117- 2001
63680137- 2001
63680138- 2001
63680139- 2001
63680140- 2001
63680141- 2001
63680168- 2001
63680169- 2001
DESCRIPTION
Spring, Blocker
Kit, Capacitor Metric Thread
Foam, Top Cover, Front
Foam, Top Cover, Middle
Foam, Top Cover, Rear
Blocker, Line Feed
Foam, Body Cover f Side Corner
Foam, Body Cover, Front Middle
Foam, Body Cover, Left Front Corner
Foam, Body Cover, Right Front Cover
Foam, Body Cover, Side
Foam, Body Cover, Front
Foam, Body Cover, Top
Foam, P.C. Board
Foam, Base, Left Front Corner
Foam, Base, Left Front, Left Middle
Foam, Base, Right Front, Right Middle
Foam, Base, Right Front Corner
Foam, Base, Left Rear Corner
Foam, Base, Left Rear
Foam, Base, Right
Foam, Base, Right Rear Corner
Heat Shield, Transformer
PCB, 730 Logic w/Condensed Basic
Hinge Pin
Pin, Hinge, Ribbon Tensioner
Assembly, RTP Switch
Tensioner, Ribbon
Bracket, Ribbon Tensioner
Spring, Ribbon Tensioner
Assembly, Ribbon Tensioner
Shield, Transformer
I.C. Assembly 8049
I.C. Assembly 8039
PCB, Flyback Protect Bd.
Assembly, Carriage and Shafts
Clevis Pin, Solenoid
Assembly, Pin Feed Rollers
Roller Drive Tractor
Foam, Body Cover, Pulley Side
Foam, Body Cover, Rear Corner
Foam, Body Cover, Middle
Foam, Rear Corner, Pulley Side
Foam, Body Cover, Front Corner
Stripper, paper, Pinned
Platen, Hex, Pinned
8-33
FIGURE
NUMBER
8-3/2
8-9
8-8
8-8
8-8
8-3/2
8-8
8-8
8-8
8-8
8-8
8-8
8-8
8-6
8-8
8-8
8-8
8-8
8-8
8-8
8-8
8-8
8-6
8-9
8-5
8-2
8-9
8-2
8-2
8-2
9-2
8-6
8-9
8-9
8-9
8-4
8-5
8-3/1
8-3/1
8-8
8-8
8-8
8-8
8-8
8-3/1
8-3/1
INDEX
NUMBER
QTY.
6
1
5
1
1
1
2
1
3
1
14
1
5
1
10
1
11
1
4
1
6
1
13
1
14
1
4
1
16
1
17
1
18
1
19
1
20
1
21
22
23
8
85
4.1
1
1
1
1
1
2
7.3
72
7.2
1
7.1
1
1
1
7.4
1
7
1
5
1
48A
48
86
A/
1
1
8
1
10
1
3
1
3.4
2
12
1
7
1
15
8
1
9
1
2.2
1
2.1
1
PART NUMBER
63680170-5001
63701468-6003
81700332-2001
xxxxxxxx-xxxx
DESCRIPTION
Assembly, Hex Platen Pinned
Kit, Zip- Pack, 12 Ribbons
Paper Guide
P.C.B. 730 Logic
8-34
FIGURE
NUMBER
8-3/1
8-2
8-7
8-6
INDEX
NUMBER
2
QTY
1
11
-
5
2
2
1
APPENDIX A
ADJUSTABLE PIN - FEED DRIVE ROLLER
PURPOSE - The new Adjustable Pin - Feed Roller accommodates variations in width
dimensions between pin-feed holes of fan-fold paper.
DESCRIPTION - Refer to Figure 1 (detail in Figure 2, reverse side). The
Adjustable Pin-Feed Drive Roller has adjustable rings and tension springs at
each end. The tension springs ensure pin-to-pin distance, once set by the
operator. The Drive Pin Rings move longitudinally while retaining proper pin
alignment. Each Adjustment Ring has eight fixed positions, allowing fine
adjustment of pin-to-pin distance.
Figure
1 .
ADJUSTABLE PIN-FEED DRIVE ROLLER
DIMENSION "A" (Home Position)*
o Short Version (P/N 63669489-5001) 228 mm _+1 mm
o Long Version (P/N 63669489-5002) 238 mm +^1 mm
o See Figure 2 for "Home Position"
A-1
DIRECTIONS - Refer to Figure 2. To adjust the pin-to-pin distance to accommodate
the fan-fold paper, perform the following:
1
Place front panel switch in the OFFLINE position and turn power OFF.
2.
Remove the power plug from wall outlet.
3.
Remove top cover from printer.
4.
Grasp Drive Pin Ring and Adjustment Ring at one end of roller and slide
toward end of roller.
5.
With spring compressed, rotate Adjustment Ring (with slots) to reposition
the drive pins...
o Move to a deeper slot to reduce pin distance.
o Move to a shallower slot to increase pin distance.
o Repeat at other end of roller if necessary.
NOTE
The shaded area in Figure 2
illustrates the "HOME" position (228.6 mm or 9" for short
version; 238.6 mm or 9.4" for
long version) .
The printer
is shipped from the factory
set in the "HOME" position.
CAUTION
Index pin MUST stay in Drive
Pin Ring slot. Make certain
that Cam Pin falls into Cam
Slot.
INDEX PIN
DRIVE PIN RING
INDEX SLOT
HOME
POSITION
ADJUSTMENT RING
Figure 2.
ADJUSTABLE DRIVE ROLLER DETAIL
A-
ILLUSTRATED PARTS BREAKDOWN - The new Adjustable Pin-Feed Drive Roller is
broken down as follows:
ITEM
1
PART NUMBER
DESCRIPTION
63669489-5001
Assembly, Adj. Pin Feed Roller, Short
NOTE:
1.1
1.2
1.3
1.4
1.5
1.6
1.7
ITEM
2
63669476-2001
63669486-2001
36350009-2001
33150000-2010
63669485-2002
63669484-2001
63669488-2001
Endcap, Drive Roll, Adj. Pin
Paper Roller, Short
O-Ring 0.921 O.D.
Dowel Pin
Adjustment Ring
Drive Pin Ring
Comp. Spring, Pin Feed Ring
DESCRIPTION
Assembly, Adj. Pin Feed Roller, Long
NOTE:
2.1
2.2
2.3
2.4
2.5
2.6
2.7
63669476-2001
63669486-2001
36350009-2001
33150000-2010
63669485-2002
63669484-2001
63669488-2001
1
This assembly is made up of items
1.1 through 1.7.
PART NUMBER
63669489-5002
QTY.
2
1
6
10
2
2
2
QTY.
1
This assembly is made up of items
2.1 through 2.7.
Endcap, Drive Roll, Adj. Pin
Paper Roller, Long
O-Ring 0.921 O.D.
Dowel Pin
Adjustment Ring
Drive Pin Ring
Comp. Spring, Pin Feed Ring
A-
2
1
6
10
2
2
2
i
RADIO SHACK
Ma DIVISION OF TANDY CORPORATION
U.S.A.: FORT WORTH, TEXAS 76102
CANADA: BARRIE, ONTARIO L4M 4W5
TANDY CORPORATION
AUSTRALIA
280-316 VICTORIA
RYDALMERE.
880-37400762
ROAD
NSW.
2116
BELGIUM
U.K.
PARC INDUSTRIEL DE NANINNE
5140 NANINNE
BILSTON ROAD WEDNESBURY
WEST MIDLANDS WS10
7JN
PRINTED
IN U.S.A.
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