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SERVICE MANUAL
MPS1200 PRINTER
APRIL, 1987
PN-601210-19
: commodore
COMPUTERS
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SERVICE MANUAL
MPS1200 PRINTER
APRIL, 1987 PN-601210-19
Commodore Business Machines, Inc.
1200 Wilson Drive, West Chester, Pennsylvania 19380 U.S.A.
Commodore makes no expressed or implied war
ranties with regard to the information contained
herein. The information is made available solely on
an as is basis, and the entire risk as to quality and
accuracy is with the user. Commodore shall not be
liable for any consequential or incidental damages
in connection with the use of the information con
tained herein: The listing of any available replace
ment part herein does not constitute in any case
a recommendation, warranty or guaranty as to
quality or suitability of such replacement part.
Reproduction or use without expressed permis
sion, of editorial or pictorial content, in any mat
ter is prohibited.
This manual contains copyrighted and proprietary information. No part
of this publication may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic, mechanical,
photocopying, recording or otherwise, without the prior written per
mission of Commodore Electronics Limited.
Copyright© 1986 by Commodore Electronics Limited.
Copyright© 1986 by Citizen America Corporation
All rights reserved.
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Chapter 1 Operating Principles
Chapter 2 Disassembly and Maintenance
Chapter 3 Troubleshooting
Chapter 4 Parts Lists
Chapter 5 Circuit Diagrams
Appendices
Page 6
Page 7
Chapter 1
Operating Principles
TABLE OF CONTENTS
1-1. Operation of each mechanism..................................................................................... 1-1
1-1-1. Print head mechanism........................................................................................ 1-1
1-1-2. Carriage feed mechanism...................................................................................... 1-3
1-1-3. Ribbon feed mechanism.................................................................................... 1-5
1-1-4. Paper feed mechanism
1-1-5. Print head gap adjust mechanism....................................................................... 1-9
1-2. Operation of control parts..................................................................................................1-10
1-2-1. Configuration of printer..........................................................................................1-10
1-2-2. Basic operations of printe r.....................................................................................1-12
(1) Operation on initialization.......................................................................................1-12
(2) Operation on data input...........................................................................................1-12
(3) Printing operation......................................................................................................1-12
(4) Carriage return and line feed operation
1-2-3. Control method of carriage stepping motor.............................................................1-13
1-2-4. Control method of paper feed stepping m otor
1-2-5. Sensors......................................................................................................................1-16
(1) Home position sensor................................................................................................1-16
(2) Paper sensor...............................................................................................................1-16
1-2-6. Operation panel.........................................................................................................1-16
(1) Indicators...................................................................................................................1-16
(2) Operation switches....................................................................................................1-16
(3) Printer testing functions...........................................................................................1-17
........................................................................................
...................................................................
.....................................................
1-7
1-12
1-15
1-3. Power supply......................................................................................................................1-18
1-3-1. General......................................................................................................................1-18
1-3-2. Block diagram and description of each blo c k........................................................1-18
Page 8
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1-1. Operation of each mechanism
This printer is a serial impact dot matrix printer comprised of several mechanisms such as the print
head, carriage feed, ribbon feed and paper feed parts.
This section describes the operation of each of these mechanisms.
1-1-1 Print head mechanism
The print head is of the clapper type which utilizes the attractive force of an electromagnet.
It is designed to be easily mounted on and detached from the carriage assembly.
The print head is electrically connected to the control circuit via a ribbon cable.
The print head consists of the following components:
(a) Nose assembly
(b) Electromagnetic solenoid unit
(c) Armature assembly
(1) Operation of print head (see Fig. 1)
The armature is held in the stand-by position by the armature spring and the print wire
spring. When the appropriate drive signal required for each character is detected by the
control circuit, the drive current is applied to the print coil corresponding to that signal.
When the coil conducts, the attractive force is generated between the armature and core
to drive the armature toward the platen, allowing the print wire attached to the armature
to strike the ink ribbon and platen. When the printing stroke is completed, the armature
is retracted to the rest position by the armature spring. The print wire is also reset to the
rest position by way of the wire spring.
- 1-1 -
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Ink ribbon
Fig. 1
- 1-2 -
Ink ribbon
Page 11
The carriage plate assembly is guided by the carriage rail mounted in parallel with the platen
and is driven by the carriage pulse motor.
The major components of this mechanism are:
(a) Pulse motor
(b) Motor angle
(c) Belt
(d) Pulleys Right and Left, pulley flanges (2 pcs.), pulley R plate BK
(e) Carriage rail
(f) Carriage
(g) Carriage bushings Left and Right
(h) Home position sensor
(i) Carriage guide plate
(1) Mechanism and operation (see Fig. 2)
The carriage is equipped with the print head and is designed to move in parallel with the
platen along the carriage rail and the carriage guide plate. On the carriage the timing belt
is fixed. Tension is maintained on this belt by a pulley R plate.
The carriage is driven by the pulse motor via a timing belt. A counterclockwise rotation
(viewed from the top) of the motor provides the left to right movement of the carriage,
while a clockwise rotation of the motor provides the right to left movement. When the
pulse motor turns 45 degrees (6 steps), the carriage moves by 2.54 mm (1/10 of an inch).
(2) Carriage return operation (see Fig. 2)
When the CR code is received, a signal from the control circuit actuates the clockwise
rotation (viewed from the top) of the pulse motor, resulting in the right to left movement
of the carriage. This causes the ho'me position sensor plate located at the base of the
carriage to pass through the sensor part of the home position sensor.
The home position sensor is comprised of a light emitting diode and a light receiving Transis
tor. This sensor generates the signal for stopping the carriage motor when the home sensor
plate passes through the home position sensor. This signal controls the carriage so it may
stop at the home position.
1-1-2 Carriage feed mechanism
- 1-3 -
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Pulse motor
Fig. 2
- 1-4 -
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The driving power for the ribbon feed system is derived from the carriage motor via the gear.
The components of the ribbon feed mechanism are set forth below:
(a) Carriage motor
(b) Ribbon first gear, and ribbon second gear
(c) Ribbon gear
(e) Cassette first gear, and cassette second gear
(1) Ribbon feed operation (see Fig. 3)
The rotation is conveyed to the motor gear, ribbon first gear, ribbon second gear and
ribbon gear, respectively.
When the carriage moves from left to right, the ribbon gear turns in the counterclockwise
direction via the ribbon first gear and ribbon second gear. When the carriage moves in the
opposite direction the ribbon gear plate turns clockwise, allowing the ribbon gear to turn
in the same direction via two ribbon first gears and ribbon second gear each time. In other
words, whichever direction the carriage moves the ribbon gear will always turn clockwise.
(2) Ribbon cassette mechanism (see Fig. 4)
The ink ribbon is formed in an endless loop, and is always fed to one direction between
the cassette gear A and cassette gear B.
The rotation of the gear A which is coaxially joined with the above ribbon gear allows
the ribbon to be folded and pushed in to the cassette. The ribbon is arranged in a straight
line by the slit provided at the feed outlet on the other side. Appropriate back tension is
maintained by the back tension leaf spring and the ribbon is fed to the print head direction.
1-1-3 Ribbon feed mechanism
- 1-5 -
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Fig. 3
- 1-6 -
Page 15
The paper is advanced by the rotation of a pulse motor and is used to turn the platen via a
gear train.
The paper feed mechanism consists of these major components:
(a) Pulse motor with gear
(b) Gear train
(c) Platen
(d) Tractor
(1) Paper feeding operation (see Fig. 5)
The rotation of the paper feed motor is conveyed through the reduction gear train to the
drive shaft of the tractor guide block and the platen.
When the pulse motor turns for 270 degrees (36 steps), the paper is fed by 1/6 of an inch.
1-1-4 Paper feed mechanism
Fig. 5
- 1-7 -
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(2) Paper out detection mechanism (see Fig. 6)
When the paper is inserted, the paper end lever pushes a micro-switch placing the switch
in the off mode. When the paper runs out, the switch is set to detect the paper out status.
The paper out detection mechanism consists of the following components:
(a) Paper end levers Upper and Lower
(b) Paper end lever spring
(c) Micro-switch
Platen
Fig. 6
- 1-8 -
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The print head gap adjust mechanism moves the carriage plate forward or backward, varying
the gap between the platen and print head by making the carriage rail bushing eccentric and
by rotating it in order to adjust the gap to the optimum value.
The adjusting lever is located to the right side (viewing from the operating position), the gap
being varied by moving that lever. Pushing the adjusting lever towards the platen decreases
the distance between the platen and the print head, while pushing in the opposite direction
widens the gap.
The adjusting lever is designed to adjust in fixed increments. Each interval of the,adjusting
lever provides a change between the platen and print head of 0.1 mm.
1-1-5 Print head gap adjust mechanism (see Fig. 7)
Platen
Fig. 7
- 1-9 -
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1-2. Operation of control parts
1-2-1 Configuration of printer
Paper Feed Motor
Host
Computer
Fig. 1
As shown in Fig. 1, this machine consists of two units, Power/Driver PCB and BIP (Basic
Interface Pack).
- M O -
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• The power supply unit consists of the noise filter unit and the switching regulator. The
noise filter, power switch and fuse are mounted in the noise filter unit. The switching regu
lator converts AC input to DC voltages of +5V, +15V and +24V.
Usage of each DC voltage is as follows:
+ 5V: For logic control, for driving stepping motor
+ 15V: For driving carrier motor at low speed
+24V: For driving carrier motor at high speed, for driving paper feed motor, for driv
ing head pin
® The driver unit consists of the head pin driver unit and the stepping motor driver unit. Be
cause the signal from l/F pack is sent serially, this serial data is converted to a parallel one
for both the head pin driver and the stepping motor driver. For driving the print head, a
transistor array incorporating 9 circuits is used and for driving the stepping motor, that
with 4 circuits is used.
In addition, the paper feed stepping motor is always driven by +24V and the carrier stepping
motor is driven by +24V in high-speed travelling and by +15V in low-speed travelling.
The photo-sensor for detecting home position and master reset signal generating circuit are
also included in this PCB.
(2) BIP (Basic Interface Pack)
Control of printer mechanism and interface control with the host computer are made by
CPUs mounted on BIP.
Various BIPs are provided according to the model of the host computer to connect. Refer
to a manual for each BIP for detail.
- 1-11 -
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(1) Operation on initialization
When the power for the device is turned on or when RESET signal is sent from the host
CPU, the printer will be initialized and the print head will return to home position.
At this time, the contents of the buffer will be cleared and specification setting DIP switches
will also be re-set.
During initialization, no data will be received since BUSY signal of the interface becomes
HIGH. After initialization is completed, the signal becomes LOW and receiving of data is
enabled.
(2) Operation on data input
The data input is temporarily stored in the input buffer. Printing is started if the data
reaches one line or print start command code such as LF code, CR code, etc. is received.
(3) Printing operation
The carriage motor is held by relatively a weak force with +5V when waiting.
When a line of printing data or print start command code is input, the signal *CVH1 or
*CVH2 becomes LOW and +24V is applied to the motor via TRA1. During this state, t+ie
signals for driving motor CRMA ~ CRMD and those for driving printing solenoid SOL1
~ SOL9 are output by the signals DSCK and DSDT from l/F pack and printing operation is
started.
(4) Carriage return and line feed operation
When printing of one line is finished, linefeed operation is performed. During waiting, +5V
is supplied to the paper feed motor and the motor is held by relatively weak force.
When paper feed operation starts, the signal *RMVH becomes LOW first, and +24V is
applied to the motor via TRA1. l-f the signals DSCK and DSDT from l/F pack are given
during this state, the motor is driven and paper feed operation is performed.
1-2-2 Basic operations of printer
- M 2 -
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1-2-3 Control method of carriage stepping motor
Driving method of carriage motor is as follows; it is driven in 2-phase excitation from 10 to
17 CPI of DP mode and in 1-2-phase excitation at LQ mode (or equivalent speed). The driving
voltages are +24V and +15V and they are changed according to speed. Moreover, it is held
with +5V during waiting.
Figs. 2 and 3 show timing charts and driving voltage at each mode.
+24V +24V
• When the carriage is in operation, the signal *CMVH becomes LOW and +15V is always in ON
condition.
• +24V is controlled by the signals *CVH1 (Phase A) and *CVH2 (Phase B). The ON time
depends on the speed of motor and appropriate torque is set for each speed.
• In acceleration and deceleration, changeover between +24V and +15V will not be performed
and it is driven by +24V only.
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• Timing Chart for 2-phase Excitation in DP Mode
CRMA
CRMB
CRMC
CRMD
Applying voltage
for phase A coil
OV
Applying voltage
for phase A coil
Applying voltage
for phase B coil
Applying voltage
for phase B coil
+24V
+15V
+24V
+ 15V
L
Fig. 2
• Timing Chart for 1-2-phase Excitation in LQ Mode
CRMA
L
CRMB
CRMC
CRMD
*CMVH
1
________
Fig. 3
• During carriage operation, the signal *CMVH becomes LOW and +15V is always in ON condi
tion. In LQ mode, it is driven by +15V.
- 1-14 -
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Unlike the carriage motor, the paper feed motor is always driven by the voltage of +24V
during operation.
The paper feed motor is of the unipolar 1-2-phase driving and a minimum unit of phase change
is 1/432 inch. The timing chart is shown in Fig. 4.
1-2-4 Control method of paper feed stepping motor
+24V +24V
*PMVH
PFMA
PFMB
PFMC
PFMD
r
-----
1
i
—— 1/432 inch
Fig. 4 Timing chart (for forward feeding)
Note: The voltage applied to the.carriage motor is +24V with *PMVH set to LOW, or +5V
with *PMVH set to HIGH.
- 1-15 -
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1-2-5 Sensors
(1) Home position sensor
Used for detecting position of the print head.
Using a transmission type photo-interrupter, this sensor is designed so that the light shield
ing plate mounted on the carriage interrupts the transmitting light of the photo-interrupter
at the home position.
(2) Paper sensor
Detects whether printing paper remains or not.
1-2-6 Operation panel
The operation panel is located at the front of the printer main body. The layout of the opera
tion side is shown in Fig. 5.
I
-----
1 POWER
1
-----
1 PAPER OUT
CZI READY
ON LINE
LF
/ auto
FF /SHEET
/ load
Fig. 5
(1) Indicators
• POWER LED
On when power is turned on.
• READY LED
On when the printer is ready to receive data from a host CPU.
© PAPER OUT LED
On when paper end or printer error state occurs.
(2) Operation switches
© ON LINE SW
Depressing this switch allows the ON LINE or OFF LINE status to be alternately changed.
O LF SW
Depressing this switch allows the paper to be fed in a vertical direction. The amount of
paper is in accordance with the currently set paper pitch. Depressing this switch for more
than 1.5 seconds provides for continous paper feeding. LF SW is enabled when the printer
is OFF LINE.
- 1-16 -
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• FF/AUTO SHEET LOAD SW
Depressing this switch allows the paper to be fed to the next TOP OF FORM. (The paper is
advanced by the preset for length minus lines already advanced.) This switch is enabled
only when the printer is OFF LINE.
When Indicator shown the paper end at OFF LINE condition, this switch is valied for Auto
sheet load.
Print Head will move to center of printer and to be fed to the TOP OF FORM when depress
the FF SW at the paper end condition.
(3) Printer testing functions
• SELF TEST function
Turning the power on while depressing the LF SW starts the SELF TEST function. The
printing patterns are repeated from Hex. 20H to FFH in the character code.
• CORRESPONDENCE QUALITY MODE (NLQ) function
When printer is ON LINE, hold down LF SW and then press the ON LINE SW. (Procedure
for DP/CQ changing)
During printing, the CQ mode starts after the line in printing is finished.
The CQ mode continues until it is cancelled by the control panel operation (Refer to above
procedure), a control code, or a reset of the printer.
© HEX. DUMP function
When the power switch is turned on with LF SW and FF SW pressed, the HEX. DUMP mode
starts. In this mode, all the data from external system will be printed as hexadecimal data.
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1-3. Power supply
1-3-1 General
This power supply unit uses AC input (115V or 230V) and is of a switching type multi-
output DC stabilizing power unit which consists of rinding converter to output 50VA for
printer's logic and driver.
1-3-2 Block diagram and description of each block
In general, this power supply consists of the following blocks: •
i
Isolation
• Block A (Noise filter unit)
It consists of a main switch, a fuse and noise filter. A common mode choke coil, normal mode
coil, inter-line capacitor and line-ground capacitor are used for the noise filter to eliminate
normal mode noise and common mode noise generated from the switching regulator, and also
external noise through the power cord.
• Block B
(Circuit for preventing rush current)
This is to prevent a sudden charged voltage due to capacitor input type filter method from
flowing into C101 when turning the AC power on and a thermister R101 is used to suppress
the rush current. After starting operation, the resistance will be lowered due to the character
istics of the thermister to reduce loss as usual.
(Circuit for rectifier/smoothing)
Full wave bridge rectifing is performed by DS101 and C l01, and AC input is converted to
MOV or 280V.
- 1-18 -
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• Block C (Inverter driving circuit)
The energy stored in transformer T101 is supplied to the output circuit by means of a ringing
choke (reversing) method. When the power is turned on, voltage is applied to the base of
transistor TR101 via resistors R102 and R104 and TR101 is going to be ON. At this time,
transformer T101 starts to be ON and the coil for base wound to T101 becomes ON. Then,
the voltage is applied to the base of TR101 via diode D105 and TR101 becomes completely
ON. A control transistor TR102 is connected to the base of TR101 and the base current of
TR101 is cut according to the output power so that TR101 becomes OFF.
• Block D (Output circuit)
There are three kinds in output, namely, +24V, +5V and +12V, but their circuit configuration
is all the same.
First of all, the energy which transformer T101 stored while it is ON is supplied to the output
circuit while the transformer is OFF. In the output circuit, the voltage is rectified and smooth
ed for output by means of half-wave rectifying capacitor input type filter.
In addition, in the +5V circuit, choke coils are used after capacitor to reduce noise. For
protection from output overcurrent, a fuse F102 and a thermal fuse resistor R117 are used for
+5V and +15V respectively. The protection is made to cut them by temperature increase due
to resistance loss in generation of overcurrent. In addition, for +24V, protection is done by
input dropout which is caused by feedback of detected level from R107 (current detecting
resistor) of the input current to the base of TR102.
o Block E (Control circuit)
The output voltage of +5V is fed back and controlled. Its principle is as follows:
+5V output is divided at R114 and R115, then the divided voltage is input to the reference
terminal of the shant regulator IC101. The increase/decrease of reference level is amplified as
that of current at the photo-coupler P1101 and by changing the base bias of primary side
TR102 through reception side phototransistor, TR102 is turned ON and TR101 is turned OFF
according to the base level signal (collector current detecting level for primary side TR101
main transistor by R107). Thus, frequency is converted. TR101 is always turned ON with
inputting base current by R102 and R104.
- 1-19 -
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Chapter 2
Disassembly and Maintenance
TABLE OF CONTENTS
2-1. Maintenance precautions...................................................................................................2-1
2-2. Disassembly steps.............................................................................................................2-2
2-3. Disassembly, assembly and adjustment of each p a rt
.....................................................
2-3
2-3-1. Detaching and assembling the upper case
...............................................................
2-3
2-3-2. Detaching and assembling the mechanical u n it........................................................2-4
2-3-3. Detaching and assembling the print head SA............................................................2-5
2-3-4. Adjusting the print head gap......................................................................................2-6
2-3-5. Detaching and assembling the carriage m otor..........................................................2-7
2-3-6. Detaching and assembling the head carrier
..............................................................
2-8
2-3-7. Detaching and assembling the platen.........................................................................2-10
2-3-8. Detaching and assembling the paper feed m otor......................................................2-12
2-3-9. Detaching and assembling the Power/Driver PCB
...................................................
2-12
2-4 List of maintenance tools.................................................................................................2-14
2-5. Cleaning.............................................................................................................................2-15
2-5-1. Cleaning positions.......................................................................................................2-15
2-6. Lubrication.........................................................................................................................2-16
2-6-1. Period of lubrication................................................................................................... 2-16
2-6-2. Type of lubricant....................................................................................................... 2-16
2-6-3. Quantity of lubricant.................................................................................................2-16
2-6-4. Position to lubricate...................................................................................................2-16
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2-1. Maintenance precautions
i—WARNING-----------------------------------------------------------------------------------------------------------------
(1) Do not attempt to perform any removal/replacement or specified adjustment
procedures with the power plug connected to the power source.
(2) Do not attempt to replace fuse with the power on.
(3) For continued protection against risk of fire, replace only with same type and rating
of fuse.
Observe the following precautions in executing the maintenance service:
— CAUTIONS----------------------------------------------------------------------------------------------------------------
(1) If the operation is normal, do not attempt to disassemble, reassemble or adjust
without any necessity. Especially, do not loosen the setscrews on each part un
necessarily.
(2) After completion of inspection, be sure to check for normality before turning the
power on.
(3) Never try to print without the printer paper or ribbon properly installed.
(4) Check for normal setting of the printer paper.
(5) Do not lay anything on the cover or lean against it during maintenance or while
the printer is in operation.
(6) Be careful not to leave the parts or screws used inside the printer during main
tenance.
(7) When handling the printed circuit board, beware of static electricity and do not
touch the lead wires or windows unnecessarily for ICs such as pCPU, RAM, ROM
may be damaged by such electricity.
(8) Do not put the printer circuit board directly on the unit or the floor.
(9) During disassembling and reassembling, check for any damage on wires or cords and
be careful not to wire forcibly.
- 2-1 -
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2-2. Disassembly steps
Be sure to disassemble and reassemble the printer in accordance with the disassembly step
diagram shown below.
Disassembly steps (assembly shall be in the reverse order.)
- 2-2 -
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2-3. Disassembly, assembly and adjustment of each part
2-3-1. Detaching and assembling the upper case
Tool used:
Phillips screwdriver
[Detaching]
(1) Remove the tractor unit, the insertion plate and the top cover.
(2) Pull out the platen knob.
Upper case
(3) Remove the setscrew (tapping screw M3 x 8).
(4) Pull the arrowed part of the upper case toward you and remove the locking to the lower
case. (They are locked on two locations at the right and the left sides.)
- 2-3
Page 34
Upper case
(5) Raise the upper case gradually upward and remove the case while disconnecting the
connection with the lower case at the rear side of the unit.
[Assembly]
(1) Assemble in the reverse order of detaching.
2-3-2. Detaching and assembling the mechanical unit
Tool used:
Phillips screwdriver
[Detaching]
(1) Remove the upper case. (See 2-3-1.)
(2) Remove the two setscrews (tapping screws M3 x 8) and the two screws (Double Sems
Screws M3 x 5) on the mechanical unit.
- 2-4 -
Page 35
(3) Remove the flat cable fixer and pull the head flat cable upward.
(4) Pull out the connectors (CN3, CN4 and CN5) which are connected to Power/Driver
PCB.
(5) Raise the mechanical unit gradually upward and remove the unit while taking out the
insulator on Power/Driver PCB.
[Assembly]
(1) Assemble in the reverse order of detaching.
2-3-3. Detaching and assembling the print head SA
Tool used:
Phillips screwdriver
[Detaching]
(1) Remove the upper case. (See 2-3-1.)
(2) Remove the flat cable fixer and pull the head flat cable upward.
(3) Pull the print head SA upward while pulling the lock lever which secures the print head
SA on the carriage to the arrowed direction.
- 2-5 -
Page 36
[Assembly]
(1) Assemble in the reverse order of detaching.
2-3-4. Adjusting the print head SA gap
Tools used:
Phillips screwdriver
Tweezers
Thickness gauge
[Detaching]
(1) Remove the upper case. (See 2-3-1.)
(2) Set the adjust lever at the scale position #2 and confirm that the gap between the platen
and the print head is 0.5 mm ± 0705 mm.
(3) If the gap is not the proper value, make adjustment of the gap by changing the position
of the fine groove on the carriage rail bushing R which is held by the pawl of the adjust
lever tip.
- 2-6 -
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Pawl
2-3-5. Detaching and assembling the carriage motor
Tools used:
Phillips screwdriver
[Detaching]
(1) Remove the upper case. (See 2-3-1.)
(2) Remove the mechanical unit. (See 2-3-2.)
(3) Remove the two setscrews for the motor (pan-head machine screws M3 x 4) and detach
the motor.
Carriage motor
Setscrews
- 2-7 -
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[Assembly]
(1) Assemuib in the reverse order of detaching.
2-3-6. Detaching and assembling the head carrier
Tools used:
Phillips screwdriver
Tweezers
Thickness gauge
[Detaching]
(1) Remove the upper case. (See 2-3-1.)
(2) Remove the print head SA. (See 2-3-3.)
(3) Remove the mechanical unit. (See 2-3-2.)
(4) Loosen the setscrew (Double Sems Screw M3 x 5) on the pulley R plate BK and loosen
the tension of the timing belt.
(5) Remove the timing belt from the left and the right pulleys.
- 2-8 -
Page 39
Tw e e zers
(6) Pull on the adjust lever.
(7) Turn the carriage rail bushings on both sides to match its projecting part and the pro
jecting hole of the side plate and pull the bushings outward.
(8) Pull the carriage rail gradually while releasing the combination with the carriage.
(9) Take the carriage out and remove the timing belt from the carriage.
- 2 - 9 -
Page 40
Carriage
[Assembly]
(1) Assemble in the reverse order of detaching. However, it is necessary to check for the
gap of the print head SA. (See 2-3-4.)
2-3-7. Detaching and assembling the platen
Tools used:
Phillips screwdriver
Slotted screwdriver
Tweezers
Cutting pliers
[Detaching]
(1) Remove the upper case. (See 2-3-1.)
(2) Remove the cover after removing the setscrews on both sides of the platen cover (pan
head machine screws M3 x 4).
(3) Remove the E ring (E7) for securing the platen washer on the right of the platen and
remove the plain washer and the platen washer.
- 2 -10 -
Page 41
Platen
(4) Slide and remove the platen bushings on both sides and pull the platen upward, taking
care not to touch the carriage.
[ Assembly]
(1) Assemble in the reverse order of detaching.
- 2-11 -
Page 42
2-3-8. Detaching and assembling the paper feed motor
Tool used:
Phillips screwdriver
[Detaching]
(1) Remove the upper case. (See 2-3-1.)
(2) Remove the mechanical unit. (See 2-3-2.)
(3) Remove the setscrews (pan-head machine screws M3 x 4) for the paper feed motor and
detach the motor.
[Assembly]
(1) Assemble in the reverse order of detaching.
2-3-9. Detaching and assembling the Power/Driver PCB
Tool used:
Phillips screwdriver
[Detaching]
(1) Remove the upper cover. (See 2-3-1.)
(2) Remove the mechanical unit. (See 2-3-2.)
(3) Remove the interface pack.
(4) Take off the insulator (transparent film).
(5) Pull out the AC cable terminal from the PCB.
- 2 -12 -
Page 43
(6) Disconnect the connectors (CN2 and CN5) on the PCB.
(7) Remove the two setscrews (pan-head machine screws M3 x 4) and the two setscrews
(Double sems screw M3 x 6) on the PCB.
[Assembly]
(1) Assemble in the reverse order of detaching.
- 2 13 -
Page 44
2-4 List of maintenance tools
In replacing the maintenance parts such as the main printed circuit boards and units in the field,
the following maintenance tools are required:
List of maintenance tools
No.
Name
Quantity
Used objects Remarks
1 Phillips screwdriver No. 1
(with shaft length 200 mm)
1
3 — 4 mm screws
2
Phillips screwdriver No. 2
(with shaft length 200 mm)
1
2 — 2.6 mm screws
3
Slotted screwdriver
1
4
Tweezers
1
5
Cutting pliers
i
6
Thickness gauge
1 set Adjustment of print head gap
- 2-14 -
Page 45
2-5 Cleaning
Clean the inside of the printer in accordance with these instructions:
Cleaning period: every 6 months or 300 hours of operation.
Required time: Approx. 10 minutes.
Required tool: Dry cloth (Gauze or other soft cloth)
2-5-1. Cleaning locations: listed in table below
Cleaning location
Description
Carriage rail assy
Clean out ribbon or paper dust on the carriage rail.
Paper feed assy
Clean out paper dust on or around paper feed mechanism.
Photo interrupter
Remove any dust or dirt attached.
- 2-15 —
Page 46
2-6. Lubrication
2-6-1. Period of lubrication
This machine is a maintenance-free type, and lubrication under normal use is unnecessary.
However, lubrication should be made when the machine is disassembled or reasembled, or
cleaned.
2-6-2. Types of lubricant
(1) Multemps PS, No. 1 (by Kyodo Yushi Co., Ltd.)
(2) Engine Oil Mobil One (by Mobil Oil Co., Ltd.)
(3) Epinoc Grease AP (by Nippon Oil Co., Ltd.)
(4) Molytone Grease No. 1 (by Sumico Product Co., Ltd.)
2-6-3. Quantity of lubricant
Large quantity
...................
( A ) ..................Sufficient quantity should be applied.
Medium quantity
.................
(b) ..................About 3 to 4 drops; or about 0.2 mm thickness
Small quantity
for grease
About one drop
2-6-4, Positions to lubricate
Pressure Leaf
Type and quantity of lubricant: Epinoc, (C)
Epinoc (C)
Pressure leaf
Be careful that excessive application will
cause the grease to be attached to the paper.
- 2-16 -
Page 47
Paper feeding gear and relevant parts
Type and quantity of lubricant: Multemp, (§)
Puiley L, Pulley R
Type and quantity of lubricant: Molytone Grease, (A)
Epinoc, (B)
- 2-17 -
Page 48
Ribbon feeding gear and relevant parts.
Type and quantity of lubricant: see the figure below.
- 2-18-
Page 49
Adjusting lever
Type and quantity of lubricant: Epinoc, (§ )
Tractor shaft bearing
Type and quantity of lubricant: Multemp, (§)
Tractor
shaft bearing Tractor shaft BK
- 2 -1 9-
Page 50
Select lever
Type and quantity of lubricant: Epinoc, (A)
- 2 -2 0 -
Page 51
Carriage BK
Type and quantity of lubricant: see the figure below
Engine oil (A)
- 2-21 -
Page 52
Page 53
Chapter 3
Troubleshooting
TABLE OF CONTENTS
3-1. Troubles in turning the power ON......................................................................................3-1
3-2 Troubles in printing..............................................................................................................3-2
3-3. Paper feed trouble................................................................................................................3-3
3-4. Ribbon feed trouble............................................................................................................3-4
3-5. Troubles in sensors..............................................................................................................3-4
3-6. Main PCB connector configuration....................................................................................3-5
3-7. Troubleshooting procedure.................................................................................................3-6
Page 54
Page 55
3-1 Troubles in turning the power ON
Symptoms
Remedies
(1) No power to the machine.
(Electric trouble)
(1) Is Faston terminal of the power cable connected
firmly?
o If the connecting force is weak, it is because the
Faston terminal opens too wide. Correct it with
pliers, etc. and reconnect.
(2) Check voltage on the input power line.
Acceptable supply voltage: 90V~130V AC or 180V~
260V AC
* Check method
Measure between P101 (L) and P102(N) of Faston
tabs for AC input on Power/Driver PCB with a
voltmeter.
(3) Check the output voltages +24V and +5V with an
interface pack and the connectors CN2 through CN6
disconnected.
* Checking method is covered in section 3-7-(1).
o Replace Power/Driver PCB if the above voltages are
not output or are abnormal.
(2) All the lamps are turned on,
and Carriage Plate does not
move.
(Electic trouble)
(1) Is an interface pack mounted firmly?
o Mount it firmly.
(2) Failure in an interface pack,
o Replace the interface pack.
(3) Lamps are normal, but
Carriage Plate does not
move. Or, the carriage
motor shows irregular
motion.
(Electric trouble)
(1) Is connect CN4 disconnected?
o Connect it firmly.
(2) Check for +24V.
* Checking method is covered in section 3-7-(1).
o Replace Power/Driver PCB if the above voltage is
not output or is abnormal.
(3) Failure in the carriage motor driver circuit,
o Replace Power/Driver PCB.
(Operational or mechanical trouble)
(1) Is the gap between the Print Head and Platen too
narrow compared to paper stock used?
o Reset Gap Adjusting Lever to a proper position.
(2) Does Carriage Plate move slowly?
o Check, clean and lubricate the driving part.
(3) Failure in Carriage Motor.
o Replace the Carriage Motor.
- 3-1 -
Page 56
Symptoms
Remedies
(4) The Carriage Plate moves to
home position and still
keeps moving. Or, the
Carriage Plate will not return
to home position.
(Electric trouble)
(1) Failure in Home Sensor.
o Replace the Home Sensor on Power/Driver PCB.
3-2 Troubles in printing
Symptoms
Remedies
(1) No printing
(Electric trouble)
(1) Is the print head connector CN6 disconnected?
o Connect it firmly.
(2) Failure in the print wire driver,
o Replace Power/Driver PCB.
(3) Defective interface (ON LINE connection only)
o If data is not sent from the host CPU, check the
connector of the host or IF Cable Connector,
o If data is sent normally, replace IF Pack.
(Operational or mechanical trouble)
(1) Is the gap between the Print Head and Platen too
wide?
c Reset Gap Adjusting Lever to a proper position.
(2) Check ribbon for proper installation,
o Set the ribbon again.
(2) Same dot is always missing
or faints.
(Electric trouble)
(1) Is the print head connector CN6 connected firmly?
o Connect it firmiy.
(2) Failure in the print wire driver,
o Replace Power/Driver PCB.
(Mechanical trouble)
(1) Failure in Print Head SA.
o Replace the Print Head SA.
(3) Overall faint printing.
(Electric trouble)
(1) Check for +24V.
* Checking method is covered in section 3-7-(1).
o If voltage is abnormal, replace Power/Driver PCB.
- 3-2 -
Page 57
Symptoms Remedies
(Operational and mechanical trouble)
(1) Check for worn ink ribbon.
o Replace the ribbon.
(2) Is the gap between the Print Head and Platen too
wide?
o Reset Gap Adjusting Lever to a proper position.
(3) Check to see if the ribbon is wound properly.
o Set Ribbon Cassette properly again. Replace the
cassette, if it is defective.
3-3 Paper feed trouble
Symptoms Remedies
(1) No paper feeding. (Electric trouble)
(1) Is connector CN3 disconnected?
o Connect it firmly.
(2) Failure in the paper feed motor driver,
o Replace Power/Driver PCB.
(2) Irregular paper feed pitch
or irregular drive of Paper
Feed Motor.
(Electric trouble)
(1) Is connector CN3 connected firmly?
o Connect it firmly.
(2) Failure in the paper feed motor driver,
o Replace Power/Driver PCB.
(Operational and mechanical trouble)
(1) Is the gap between the Print Head and Platen too
narrow compared to the paper used?
c Reset Gap Adjusting Lever to a proper position.
(2) Does the paper feed mechanism move slowly?
o Check, clean and lubricate the mechanical part.
(3) Paper jamming. (Operational and mechanical trouble)
(1) Check to see if paper is properly set.
o Set the paper correctly.
(2) Is paper being used within manufactures specifica
tions?
o Use paper within manufacturer's specs.
(3) Is the Select Lever in a proper position?
o Set it to a proper position.
(4) Check the paper feed mechanism and paper path for
dust or other foreign matter.
o Remove if any.
- 3-3 -
Page 58
3-4. Ribbon feed trouble
Symptoms
Remedies
(1) No ribbon feeding.
(Operational and mechanical trouble)
(1) Is the Ribbon Cassette correctly installed?
o Set it correctly.
(2) Is there any failure in the ribbon feed mechanism?
o Check, clean and lubricate the mechanism.
(3) Is there any failure in the ribbon cassette?
(Check by turning a knob on the cassette.)
o Replace the ribbon cassette.
3-5. Troubles in sensors
Symptoms
Remedies
(1) No PAPER OUT status can
be generated, or PAPER
OUT lamp comes on with
the paper set.
(Electric trouble)
(1) Is connector CI\I5 connected firmly?
o Connect to firmly.
(2) Failure in Power/Driver PCB.
o Replace Power/Driver PCB.
(Mechanical trouble)
(1) Defects in the paper sensor mechanism.
o Replace Paper Sense SA.
(2) When the power is turned
on, the Carriage Plate moves
to home position and still
keeps moving. Or, the
Carriage Plate will not return
to home position.
(Electric trouble)
(1) Failure in Power/Driver PCB.
o Replace Power/Driver PCB.
- 3-4 -
Page 59
3-6. Main PCB connector configuration
3-5 -
Page 60
3-7. Troubleshooting procedure
(1) Checking the voltage on the power source.
© Take out the connectors CN2 and CN6 and an interface pack on Power/Driver PCB.
© Plug in the AC power cord to the AC power source.
© Turn on the Power Switch on Power/Driver PCB.
© Check for+5V.
Measure the voltage between pin 1 (+) and pin 8 (—) of connector CN2 with a voltmeter.
© Check for +24V.
Measure the voltage between pin 7 (+) of connector CN6 and pin 15B (—) of connector
CN1 with a voltmeter.
© If no voltage is obtained, measure the AC input voltage between the AC IN terminals
P101 (L) and P102(N) on Power/Driver PCB.
o If the result is found normal, Power/Driver PCB is defective and it should be re
placed.
© If the output is normal, check for +15V power shortcircuits of interface pack and opera
tion panel and for coil shortcircuit of the Print Head SA.
* To check +5V power shortcircuit of operation panel, measure the voltage between
pin 15a (+5V) and pin 15b (GND) of connector CN11 with a voltmeter.
* To check +5V power shortcircuit of operation panel, measure the voltage between
pin 1 (+5V) and pin 8 (GND) of connector CN2 on operation panel with a voltmeter.
* To check coil shortcircuit of the Print Head SA, check the conductivity between pins
6 to 8 (common) and pin 2 to 5, and the former pins and pins 9 to 13, resepctively,
with a voltmeter.
( ’
Print Head Cable
(
13121110 8765 432 1
(2) Checking the paper sensor
With the connector CN5 disconnected, while checking the conductivity between pin 1 and pin
2 with a voltmeter, alternately depress and release Paper Sense Lever to check if the sensor is
turned on and off properly,
o If not, replace Paper Sensor.
- 3-6 -
Page 61
Chapter 4
Parts Lists
TABLE OF CONTENTS
Packaging Section
Packaging Assembly
Mechanical Section
1. General Assembly
2. Mechanism Unit
3. Lower Case
4. Tractor Unit
Electrical Section
Power/Drive PCB Assembly
Others
Page 62
Page 63
MPS 1200
PARTS LIST for PACKAGING ASSEMBLY
Page 64
DRAWING NO. 1 Packaging Assembly (MPS1200/MPS1200P)
Page 65
«oo/W S«°op'
oRp,\NlNG
NO. 2
Packa9»n9
15
16
Page 66
DRAWING NO. 3 Packaging Assembly (MPS1200/MPS1200P)
Page 67
DRAWING NO. 1 -3 REV. NO. A
PARTS LIST for MPS1200 TITLE: Packaging Assembly SANO. SHEET NO. 1/2
ITEM
NO
LOCATION
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
TYPE QTY COMMENT MANUFACTURER
@ ¥
i 601210-00E Y053-1006
MPS 1200 PRINTER (UL)
i
2 601210-00D
Y053-1006
MPS 1200 PRINTER (CSA)
i
3
601210-00A Y063-2007
MPS 1200 PRINTER (VDE)
i
4
601210-00B
Y063-7007 MPS 1200 PRINTER (BSI)
i
5
601210-00F
Y063-6007
MPS 1200 PRINTER (SEV)
i
6
601210-000
Y063-8007
MPS 1200 PRINTER (AUST)
i
7
601220-00A
Y063-2009 MPS 1200P PRINTER (VDE)
i
8
601220-00B
Y063-7009
MPS1200P PRINTER (BSI)
i
9 601220-00F Y063-6009
MPS 1200P PRINTER (SEV)
i
10 601220-00C
Y063-8009
MPS1200P PRINTER
(AUST)
i
11 601210-01
Y0610-21*
Master Carton
i
12
601210-02 Y0612-21*
Indivisual Box (USA)
i
13
601210-03 Y0612-22*S
Indivisual Box (Europe)
i
14 601220-01
Y0612-22*P
Indivisual Box (1200P)
i
15
601210-04
Y0630-21*
Sleeve
i
16 601210-05 Y0623-01*
Lower Pad
i
17 601210-06 Y0624-01*
Upper Pad i
18 601210-07 Y0629-01* Poly Bag ( for Unit)i19
601210-08 Y0627-01*
Poly Bag (for Tractor Unit)
i
20 601210-09
Y0815-21*
Tractor Unit
i
Page 68
DR A WIN G NO. L
PARTS LIST for MPSlfo TITLE: Packaging Assembly
ITEM
NO
LOCATION
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
21 601210-10
Y0810-01* Ribbon Cartridge SA
22
601210-11
Y0627-01* Poly Bag (for Power Cord)
23
601210-12 Y6002-01*
Power Cord (UL/CSA)
24
601210-13
Y6002-21*
Power Cord (VDE)
25
601210-14 Y8110-31* Power Cord (BSI)26601210-15 Y6002-61*
Power Cord (SEV)
27
601210-16
Y6002-41*
Power Cord (AUST)
28 601210-17 Y0625-01* Poly Bag (for Insertion Plate)
29 601210-18
Y0813-01*
Insertion Plate
30 319893-01
Y99760-15*
User's Manual (USA)
31
319893-02
Y99760-17*
User's Manual (Europe)
32 601220-02
User's Manual (1200P)
33
320957-02
Y99651-13*
Warranty Card (USA)
34
319772-01 Y99651-15*
Read This First Sheet
35
314075-02 Y99651-14*
Service Center List
36
324244-01
Warranty Pack (UK)
37
252506-01 Warranty Card
(AUSTRALIA)
REV. NO. A
SANO.
SHEET NO. 2/2
TYPE Q'TY
T
COMMENT
MANUFACTURER
@¥
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Page 69
MPS 1200
PARTS LIST & LOCATION for GENERAL ASSEMBLY
Page 70
DRAWING NO. 4 General Assembly (MPS1200)
©
Page 71
PARTS LIST for MPS1200 TITLE: General Assembly
DRAWING NO. 4
ITEM
NO
COMMODORE
PARTS NO
VENDOR
PARTSNO
PARTS NAME
1 601210-21
Y0401-21
Upper Case
2 601210-22 Y0822-21 LED Panel PCB SA
3 601210-23
Y0417-11
PCB Fixer
4
601210-24 Y0403-01
Top Cover
5 601210-25
Y0812-01
Bail Roller Shaft BK
6 601210-26
Y0406-01
Bail Roller Bushing
7 601210-27
Y0408-21
Platen Knob
8 601210-28
E96130-08
(+) PH Tapping Screw M3x8
9 601210-29
E90530-05 (+ ) PH Screw (SW + PW) M3x5
10
601210-30
Y8331-02
Operation Panel PCB SA
11
601210-31
Y0602-21
Name Plate (USA)
601210-19
Y0602-22S Name Plate (EU, Serial)
601210-20
Y0602-22P
Name Plate (EU, Parallel)
12
601210-32
Y0813-21
Insertion Plate Unit
13 601210-33
Y0416-21*A
Switch Key (ONLINE)
14 601210-34 Y0416-21*B Switch Key (LF)
15 601210-35 Y0416-21*C
Switch Key (FF / AUTO SHEET LOAD)
16 601210-36 Mechanism Unit
ASSY NO.
REV. NO. A
SHEET NO. 1/1
QTY
1
1
1
1
1
2
COMMENT
@¥
1
4
2
1
1
1
1
1
1
1
Page 72
Page 73
MPS 1200
PARTS LIST & LOCATION for MACHANISM UNIT
Page 74
DRAWING NO. 5 Mechanism Unit (MPS1200)
cd lo
Page 75
DRAWING NO. 5 REV. NO. A
PARTS LIST for MPS1Y00 TITLE: Mechanism Unit ASSY NO. SHEET NO. 1/2
ITEM
NO
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
Q°TY
COMMENT
@ ¥
i 601210-37
Y0801-01
Frame BK
i
2
601210-38
Y0805-01 Carriage Motor BK i
3
601210-39
E90130-05 (+ ) PH Screw M3x5
7
4 601210-40
Y0017-01
1st Gear Plate
1
5
601210-41
Y0018-01
1st Gear Leaf
1
6
601210-42
Y0019-01
1st Gear
2
7 601210-43
Y0020-01
Ribbon Gear
1
8
601210-44
Y0021-01 Pulley L 1
9 601210-45
Y0022-01 Pulley Frange 2
10
601210-46
E94330-00
E Ring E3
2
11 601210-47
Y0023-01 Pulley R 1
12 601210-48
Y0807-01 Pulley R Plate BK 1
13 601210-49
E90530-05 ( + ) PH Screw (SW + PW) M3x5 1
14 601210-50
Y0026-01
Timing Belt (328MxL3.2)
1
15 601210-51 Y0806-01 Carriage BK 1
16
601210-52
Y0032-01 Carriage Rail 1
17 601210-53
Y0033-01 Carriage Rail Bushing L 1
18 601210-54
Y0034-01 Carriage Rail Bushing R 1
19
601210-55
Y0035-01
Adjust Lever
1
20 601210-56
Y0808-01
Platen BK
1
Page 76
DRAWING NO. 5 REV. NO. A
PARTS LIST for MRS 1200 TITLE: Mechanism Unit ASSY NO. SHEET NO. 2/2
ITEM
NO
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
Q'TY COMMENT
@ ¥
21 601210-57 Y0039-01
Platen Washer
1
22 601210-58 Y0038-01
Platen Bushing
1
23
601210-59
E93180-00 PW #3 0 8 1
24 601210-60
E94370-00
E Ring E7
1
25 601210-61 Y0040-01
Platen Cover
1
26
601210-62
Y0809-01 P.F. Motor BK
1
27 601210-63 Y0042-01. Idle Gear 1
28
601210-64
Y0047-01
Select Lever
1
29 None
30
601210-65
Y0053-21
Dip Switch Cover
1
31
601210-66 Y0901-01 Print Head SA
1
32
601210-67 Y0059-01 Paper Pressure 333601210-68
Y0062-01
Cord Clip
2
34 None
35 601210-69 Y0029-01
Ribbon Mask
1
36 601210-70 Y0030-01
Felt
2
Page 77
MPS 1200
PARTS LIST & LOCATION for LOWER CASE
Page 78
DRAWING NO. 6 Lower Case (MPS1200)
r^*
Page 79
PARTS LIST for MPS 1200
TITLE i Lower Us.S6
DRAWING NO. 6
ITEM
NO
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
i 601210-71
Y0402-21 Lower Case
2
601210-72
Y0043-01 Pressure Leaf
3
601210-73 Y0044-01 Pressure Roller
4
601210-74
Y0045-01
Friction Control
5
601210-75
Y0046-01 Friction Control Gear
6 601210-76
Y0048-01 Paper End Frame
7 601210-77
Y0049-01 Paper End Lever U
8 601210-78
Y0050-01
Paper End Lever L
9 601210-79 E90530-05
( + ) PH Screw (SW + PW) M3x5
10 601210-80
Y0054-01 Earth Angle
11 601210-81
Y0055-02 Shield Plate
12
601210-82
Y0056-01 Rom Cassette Guide U
13
601210-83 Y0057-01 Rom Cassette Guide L
14
601210-84
Y0058-01
Earth Leaf
15 601210-85 E92830-00 Push Nut 0 3
16
601210-86
E90130-05
( + ) PH Screw M3x5
17 601210-87 E96130-08 (+ ) PH Tapping Screw M3x8
18 601210-88 E90530-06 ( + ) PH Screw (SW + PW) M3x6
19
601210-89
Y7101-030
Bush
20 601210-90 Y7101-003 Cool Sheet
ASSY NO.
REV. NO. A
SHEET NO. 1/2
Q’TY
1
3
3
1
1
1
COMMENT @¥
1
1
1
1
1
1
1
2
4
2
4
2
2
1
Page 80
TITLE: Lower CaseMPS : 20c
PARTS LIST for
ITEM
NO
COMMODORE
PARTS NO
21
601210-9122601210-92
23 601210-93
24 601210-12
601210-13
601210-14
601210-15
601210-16
25 601210-95
26
601210-96
27 601210-97
28
601211-98
601212-0629601210-9930601211-00
.
..............
.
..........
T
VENDOR i
PARTSNO
Y0060-01
Y0061-01
Y0063-01
Y6002-01
Y6002-21
Y8110-31
Y6002-61
Y6002-41
Y8410-01
E90440-05
Y8001-01
Y8391-03
Y8392-23
Y0409-02
Y0066-01
DRAWING NO. 6
PARTS NAME
Bottom Plate
Insulator
Insulation Plate
Power Cord (UL/CSA)
Power Cord (VDE)
Power Cord (BSI)
Power Cord (SEV)
Power Cord (AUST)
Inlet SA
( + ) PH Screw (SW)M4x5
Paper Sense SA
Power / Driver PCB SA (USA)
Power / Driver PCB SA (EU)
Leg
Insulator L
ASSY NO.
SHEET NO. 2/2
REV. NO. A
COMMENT
117 V
200V
200V ONLY
Page 81
MPS 1200
PARTS LIST & LOCATION for TRACTOR UNIT
Page 82
DRAWING NO. 7 Tractor Unit (MPS1200)
Page 83
DRAWING NO. 7 REV. NO. A
PARTS LIST for MPS 1.2CQ TITLE: Tractor Unit ASSY NO. SHEET NO. 1/1
ITEM
NO
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
Q’TY
COMMENT
@ ¥
601211-01
Y0815-21
Tractor Unit
i
ITEM No.l~No.18
i
601211-02
Y0816-01
Tractor Shaft BK
i
2
601211-03 Y0453-01
Tractor Rail 2
3
601211-04
Y0817-01
Tractor L SA 1
4 601211-05
Y0818-01
Tractor R SA 1
5 601211-06 Y 0454-03
Tractor Frame L 1
6
601211-07 Y0455-02
Tractor Frame R
1
7
601211-08
Y0456-01
Tractor Gear
1
8
601211-09
Y0457-01 Tractor Idle Gear 1
9 601211-10
Y0458-02
Set Lever L
1
10
601211-11 Y0459-02 Set Lever R 111601211-12
Y0460-01 Set Lever Spring 2
12
601211-13
Y0461-21
Tractor Cover L
1
13
601211-14
Y0462-21
Tractor Cover R
1
14
601211-15
Y0463-21
Paper Guide 2
15
601211-16 Y0114-01
Tractor Bushing
1
16 601211-17 E94340-00
E Ring E4
1
17 601211-18
E93340-00 Nut #l(Ext.TW) M4
4
Page 84
Page 85
(Y8391 SA)
MPS 1200 (USA)
PARTS LIST & LOCATION
for Power/Driver PCB SUB ASSEMBLY
Page 86
Page 87
SHEET NO. 1/8
@ ¥
Eastern
Mitsubishi
Mitsubishi
Hitachi
Mitsubishi
Fujitsu
Hitachi
Rohm
NEC
Origin
Rectron
COMMENT MANUFACTURER
Q’TY
i
i Mitsubishi
1
2
1 Koudenshi
1 Rohm
8
SA NO. Y8391SA
1N1400R I.M.T
1S2473
1S2075K Hitachi
1N4002
ETP150-G i
M51958BL
HA13408 i
M54567
FT5769M
2SA933
2SD1308
SG-CZ02
SM-1XN-06
PARTS NAME TYPE
Power / Driver PCB SA i Eastern
Power / Driver PWB
Driver Section
PARTS NO. 601211-19 (Y8391-04*) REV. NO. B
TITLE: Power/DriverPCB SA
VENDOR
PARTS NO
Y8291-04*
Y8391-04*
Y2101-006 IC 7406
IC M54977P i
IC M4094BP or Equivalent i
Transistor array
Y2900-001 IC
Y3531-408
Y3540-769 Transistor array
Transistor 2SD1769 1 Sanken
Y3401-769
Photo-interruptor
Y8420-010
Diode
Y3600-030
Y3600-032 Diode
PARTSNO
COMM 0 ORE
PARTS LIST for MPS 1200 (USA)
ITEM
601211-19
LOCATION
i
NO
2 601211-20
601211-21
IC7 601211-22
IC6
3
4
601211-24 Y2201-094
601211-25
IC5
IC2 601211-23 Y2900-002
5
6
IC3,4 601211-26 Y3511-567 Transistor array
TRA1 601211-27
TR3 601211-28 Y3100-844 Transistor 2SA844 1
8
7 IC1
9
10
TR2 601211-29
11
601211-30
D2 601211-31
12 PI-1
13
601211-32
D4—11
14
Page 88
PARTS LIST for MPS 1200 (USA) TITLE: Power/DriverPCB SA
PARTS NO. 601211-19 (Y8391-04*)
ITEM
NO
LOCATION
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
1 D12
601211-33
Y3713-240
Zener diode
2 D3 601211-34 Y3704-091
Zener diode
3
RN1,2 601211-35
Y4400-332
Res. array 1/8W 3.3KCl 5%
4
R12.19
601211-36
Y4114-151
Res. carbon
1/4W 15012 5%
5
R4—11 601211-37 Y4114-103
Res. carbon
1/4W10KQ 5%
6
R13 601211-38
Y4114-152 Res. carbon 1/4W 1.5KQ
5%
7 R16,20
601211-39
Y4114-332
Res. carbon 1/4W3.3KQ 5%
8
R14
601211-40
Y4114-362 Res. carbon 1/4W 3.6KI2 5%
9 R17
601211-41 Y4114-472 Res. carbon
1/4W 4.7KH 5%
10 R15
601211-42 Y4114-562 Res. carbon
1/4W 5.6KA 5%
11
R1
601211-43
Y4114-362 Res. carbon 1/4W 3.6KA 5%
12 R2
601211-44 Y4114-183
Res. carbon 1/4W18K0 5%
13
R18
601211-45
Y4114-752 Res. carbon 1/4W 7.5KQ
5%
14
(CN6)
601211-46 Y8502-011 Flat cable guide
SA NO. Y8391SA
SHEET NO. 2/8
REV. NO. B
TYPE
Q’TY COMMENT MANUFACTURER
@ ¥
HZ24 i
Hitachi
MTZ24
Rohm
RD9.1F
i
NEC
EQB01-09 Fuji Elec.
RGLD10X332J
2
Murata
RGSD10X332J
Murata
SE10332J Fukushima Futaba
MRNSA-11P-332J
Kyocera
2
8
1
2
1
1
1
1
1
1
1
Muramatsu
Page 89
@ ¥
SHEET NO. 3/8
KCK
COMMENT MANUFACTURER
5
Q’TY
SA NO. Y8391SA
RT-DSKC85TK-
Murata
TDK
DD308-959F104Z25
YF104Z
SS45D1C104ZYR
DD104-989B102K50 Murata
RT-HE50TK-YB102K 1 KCK
DDK
1
128D-030P2B-L14N
CK45B1H102KYR TDK
OMRON
Molex
Molex
1
00 8272 230 001162 Elco
5233-08A
XC5A-3072-1
1 Molex
Molex
1 Burndy
1
5233-06A-YE
HBLB13S-1J
PARTS NAME TYPE
Cap. ceramic 1000PF 50V
TITLE: Power/DriverPCB SA
PARTS NO. 601211-19 (Y8391-04*) REV. NO. B
VENDOR
PARTS NO
Y5251-104 Cap. ceramic O.lpF 25V
Y5216-102
Connector
Connector
Connector 5233-06A 1
Y6108-002 Connector 5233-02A
Connector
Connector
Y6108-006Y
PARTS NO
COMMODORE
PARTS LIST for MPS 1200 (USA)
ITEM
601211-47
LOCATION
C l,6,7,9,n
i
NO
CIO 601211-48
2
CN1 601211-49 Y6147-030
3
601211-50 Y6108-008
601211-51 Y6108-006
601211-52
601211-53 Y6150-113
CN6
CN4 601211-54
6 CN5
5 CN3
4 CN2
8
7
Page 90
PARTS NO. 601211-19 (Y8391-04*) REV. NO. B
PARTS LIST for MPS 1200 (USA) TITLE: Power/DriverPCB SA SA NO. Y8391SA SHEET NO. 4/8
ITEM
NO
LOCATION
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME TYPE
Q’TY
COMMENT MANUFACTURER
@ ¥
Power Supply Section
i
IC101
601211-55 Y2601-431 IC NJM431C
i
JRC
TL431AWC
T.I.
MC431C
Motorola
pA43lC
F.C.
PPC1093J
NEC
2
PI-101
601211-56 Y3802-101
Photo-coupler TLP521-1 i
Toshiba
ON3111
Matsushita
3 TR101
601211-57
Y3303-822 Transistor 2SC3822-Y or O i Sanken
2SC3158
NEC
2SC2810-Y or O
Sanken
2SC3795
Matsushita
2SC3723
Fuji Elec.
4 TR102
601211-58 Y3303-668
Transistor
2SC3668
i
Toshiba
5 DS101
601211-59 Y3603-002 Diode Stack 400V 1.5A LB154 i Sanken
LB156
Sanken
6
ZD101 601214-16
Y3713-075A Zener diode RD7.5EB1 i Adjust. Diode
NEC
05Z7.5X Toshiba
7
D112
601214-00 Y3601-016 Diode
ERC30-02 i Fuji Elec.
ERB93-02
Fuji Elec.
Page 91
MANUFACTURER @ ¥
GI
Rectron
GI
Origin
Rectron
F.C.
NEC
Toshiba
Rectron
Fuji Elec.
Murata
-----------------------------------
-
r—
COMMENT
Q’TY
i
i
i
3 GI
Adjust.Res.
1
TYPE
RGP10D i
FR103
SM-1A-02FR Origin
RGP10J
SM-1A-06FR
FR105
1S954
FDH9615
HER303
EGP30D
ERC91-02
ERD32-02 Fuji Elec.
NTH-11D5R0LB
1S953 NEC
1S1588
PARTS NAME
1/4W1.1K-1.3K O 5%
PARTS LIST for MPS 1200 (USA) TITLE: Power/DriverPCB SA SA NO. Y8391SA SHEET NO. 5/8
Diode 200V 1A
Diode 600V 1A
Diode
Diode
PARTS NO. 601211-19 (Y8391-04*) REV. NO. B
VENDOR
PARTS NO
Y3602-001
Diode
Thermistor 5D-11 1 Ishizuka
Res. carbon 1/4W 1.1 KQ 5%
-1 3 2
Y4600-007
Y4114-221 Res. carbon 1/4W 220J1 5% 2
Y4114-112 Res. carbon 1
Y4114-112
PARTSNO
COMMODORE
LOCATION
D105 601211-61
i
NO
ITEM
601211-62 Y3602-003
2 D106
3 D107 601211-63 Y3600-031
601211-64 Y3600-020
D109-111 601211-65 Y3601-013
4 D108
5
6 R101 601211-66
601211-67
7 R109.113
601214-10
R114
8 R115 601211-68
9
Page 92
PARTS NO. 601211-19 (Y8391-04*) REV. NO. B
PARTS LIST for MPS 1200 (USA) TITLE: Power/DriverPCB SA SA NO. Y8391SA SHEET NO. 6/8
ITEM
NO
LOCATION
COMMODORE
PARTSNO
VENDOR
PARTSNO
PARTS NAME
TYPE
Q’TY
COMMENT
MANUFACTURER @¥
i
R106.106
601211-70 Y4114-471
Res. carbon
2
Adjust. Res.
-4 7 2
1/4W 470O-4.7KO 5%
2
R110 601211-71 Y4114-471
Res. carbon
1
Adjust. Res.
-1 0 3 1/4W470O-10KO 5%
3 R118 601211-72
Y4114-333 Res. carbon 1/4W 33KO 5%
1
4
R116
601211-73 Y4114-105 Res. carbon 1/4W 1MO 5%
1
5
R102
601211-75 Y4112-334
Res. carbon 1/2W 330KO 5%
1
6
R117
601211-76 Y4800-001
Res. fuse 1W 20
ERQ1CK2RO
1
Matsushita
7 R108 601214-11
Y4221-470
Res. oxydized metal film
RSS1X-470J
1
Fukushima Futaba
1W 470
ERG1SJ470P
Matsushita
8 R107
601211-77 Y4312-075
Res. oxydized metal film RNS1X-R75J 1
Fukushima Futaba
1W 0.750
ERX1SJ-R75P
Matsushita
9 R103
601211-78 Y4222-473
Res. oxydized metal film RSS2X-473J
1
Fukushima Futaba
2W 47KO
ERG2SJ473P
Matsushita
10
R104
601211-79
Y4222-390
Res. oxydized metal film
RSS2X-39J 1
Fukushima Futaba
2W 390
ERG2SJ-390P Matsushita
11
R ill
601211-80 Y4223-681
Res. oxydized metal film RSS3X-681J 1
Fukushima Futaba
3W 6800
ERG3SJ-681P Matsushita
12
C102.103 601211-81 Y5259-472
Cap. ceramic 250V 4700PF DE0807F472Z AC250V
2
Murata
13 C116
601211-83
Y5259-222
Cap. ceramic 250V 2200PF DE0807E222Z AC250V 1 Murata
Page 93
PARTS LIST for MPS 1200 (USA)
TITLE: Power/DriverPCB SA SA NO. Y8391SA
SHEET NO. 7/8
PARTS NO. 601211-19 (Y8391-04*) REV. NO. B
ITEM
NO
LOCATION
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
TYPE Q'TY
COMMENT MANUFACTURER
@ ¥
1
C108
601214-12 Y5229-471 Cap. ceramic 1KV 470PF
DE0707R471K i
Murata
DE0907R471K-2KV
Murata
DE0907BN471K-2KV
Murata
2
C106.H5
601211-84 Y5802-103
Cap. MP 630V O.OlpF ECQ-E6103KZ 2
Matsushita
YM-MD103K-630V Yamato
MDD22J103K
Nittsuko
3 C101 601211-85
Y5803-224
Cap. MP 200V 0.22pF
CFD22D224
1
Nittsuko
MDD200AC224
Hitachi
4
C105.H3
601211-86
Y5804-154
Cap. film 50V 0.15pF YM92WS1H154K 2
Yamato
ECQ-V1H154JZ
Matsushita
5
C109 601211-87
Y5804-333 Cap. film 50V 0.033pF YM92WS1H333K 1
Yamato
ECQ-B1H333KH-1
Matsushita
6
C117 601211-88
Y5173-221
Cap. electrolytic
CESEM1E221
1
Marcon
25WV 220pF
SME25VB220
Nippon chemi-con
7
C104 6012J1-89 Y5178-331 Cap. electrolytic SME200VN SN330-22C 1 Nippon chemi-con
200WV 330pF CETSW2D331M
Marcon
8
C107 601211-90
Y5565-047 Cap. electrolytic CEBPM1HR47 1 Marcon
50WV 0.47pF SM50VBR47BPD Nippon chemi-con
9 C llO .lll
601211-91
Y5174-332
Cap. electrolytic SME35VB3300
2 Nippon chemi-con
35WV 3300pF
CESEM1V332 Marcon
Page 94
PARTS LIST for MPS 1200 (USA)
TITLE: Power/DriverPCB SA
PARTS NO. 601211-19 (Y8391-04*)
ITEM
NO
LOCATION
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
i 0112,114
601214-01
Y5171-332
Cap. electrolytic
10WV 3300pF
2
S101
601211-94
Y7601-101
Seesaw switch
3 F101 601211-95 Y7301-701
Fuse 250V 1.6A
4
F102
601214-17
Y7301-301
Y7321-101
Fuse 125V 3A
Fuse Clip Holder
5
P101.102
601211-97
Y6400-001
Faston terminal
6 T101 601214-18 Y7520-009
Transformer
7 L101
601211-99 Y7511-002
SC coil
8 L102.103
601212-00 Y7510-005 SN coil
9 L104
601212-01 Y7511-001 Choke coil
10 (TR101)
601212-02 Y7101-002
Insulating sheet
11
(TR101)
601212-03 Y7101-032 Insulating bush
12
(TR101)
601212-04
Y7800-006
Heat sink (1)
13
(D109.110)
601214-19
Y7800-015
Heat sink (2)
SA NO. Y8391SA
SHEET NO. 8/8
REV. NO. B
TYPE
Q’TY
COMMENT MANUFACTURER @ ¥
SME10VB3300
2 Nippon chemi-con
CESEM1A332
Marcon
1801.5123
1
Marquardt
WK2A44
Kautt & Bux
5211-22-3
Kanbayashi
ULCSAMT3-1.6A
1
s.o.c.
ULCSATSCR-3A 1
s.o.c.
Z.
22006
2 Kyoshin
CT1922-3
1 Eastern
CT0724-4 1
Tokin
SK-8M-5S
2 Toho Aen
SN8S-500
Tokin
FN8S-50
Nihon Felight
CT0723-4 1
Eastern
5051-1674 1
Fujikura
G-17 1 NEC
G21
NEC
CT1951-4 1
Eastern
OSH4733SP-C
Ryosan
CT1953-4 1
Eastern
Page 95
MPS 1200 (EU)
PARTS LIST & LOCATION
for Power/Driver PCB SUB ASSEMBLY
(Y8392 SA)
Page 96
Page 97
@ ¥
Eastern
Eastern
Mitsubishi
Mitsubishi
Hitachi
Fujitsu
Mitsubishi
Rohm
Koudenshi
I.M.T
Rohm
Hitachi
Origin
Rectron
COMMENT MANUFACTURER
Q’TY
i
ETP171-G
i
M51958BL i Mitsubishi
M54977P i
i
M4094BP or Equivalent i
HA13408
2SA933
1
2SD1308 NEC
1N1400R
8
1S2075K
1N4002
SM-1XN-06
PARTS NAME TYPE
Driver Section
Power / Driver PWB
IC
IC
IC
Transistor array
Transistor 2SA844 1 Hitachi
Photo-interruptor SG-CZ02
Diode
PARTS NO. 601212-06 (Y8392-25*) REV. NO. B
VENDOR
PARTS NO
Y3540-769 Transistor array FT5769M 1
Y3531-408
Y8291-25*
Y8392-25* Power / Driver PCB SA i
Y2900-002
Y2201-094
Y3511-567 Transistor array M54567 2
PARTS NO
601212-13
601212-12
COMMODORE
601212-06
601212-09 Y2900-001
601212-08 Y2101-006 IC 7406
LOCATION
3 IC6
i
NO
PARTS LIST for MPS 1200 (EU) TITLE: Power/DriverPCB SA SA NO. Y8392SA SHEET NO. 1/9
ITEM
2 601212-07
4 IC7
601212-11
IC3.4
IC2 601212-10
5
IC1
6 IC5
8
7
Y3100-844
601212-15
601212-14
TRA1
9
10 TR3
11 TR2 601212-16 Y3401-769 Transistor 2SD1769 1 Sanken
12 PI-1 601212-17 Y8420-010
Y3600-030 Diode 1S2473 1
601212-19 Y3600-032
D2 601212-18
13
14 D4—11
Page 98
PARTS NO. 601212-06 (Y8392-25*) REV. NO. B
PARTS LIST for MPS 1200 (EU) TITLE: Power/DriverPCB SA SA NO. Y8392SA SHEET NO. 2/9
ITEM
NO
LOCATION
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
TYPE
Q’TY
COMMENT
MANUFACTURER
@ ¥
i
D12
601212-20 Y3713-240
Zener diode
HZ24
i
Hitachi
MTZ24
Rohm
2
D3
601212-21
Y3704-091
Zener diode
RD9.1F
i NEC
EQB01-09
Fuji Elec.
3
RN1,2
601212-22 Y4400-332
Res. array 1/8W 3.3KD 5%
RGLD10X332J
2
Murata
RGSD10X332J
Murata
SE10332J
Fukushima Futaba
MRNSA-11P-332J
Kyocera
4
R12.19 601212-23 Y4114-151
Res. carbon 1/4W150J2 5%
2
5 R4-11
601212-24
Y4114-103
Res. carbon 1/4W lOKfi 5% 8
6 R13
601212-25
Y4114-152
Res. carbon 1/4W 1.5KA 5%
1
7 R16.20
601212-26
Y4114-332
Res. carbon 1/4W 3.3Kf2 5%
2
8 R14 601212-27
Y4114-362
Res. carbon 1/4W 3.6K£2 5%
1
9 R17 601212-28
Y4114-472
Res. carbon 1/4W 4.7KJ1 5%
1
10 R15
601212-29 Y4114-562
Res. carbon l/4W 5.6K fi5%
1
11 R1 601212-30
Y4114-362
Res. carbon 1/4W 3.6KA 5%
1
12 R2
601212-31 Y4114-183
Res. carbon 1/4W 18KQ 5%
1
13 R18
601212-32
Y4114-752
Res. carbon l/4W 7.5K ft5%
1
14
(CN6)
601212-33 Y8502-011 Flat cable guide
1
Muramatsu
Page 99
PARTS LIST for MPS 1200 (EU) TITLE: Power/DriverPCB SA
PARTS NO. 601212-06 (Y8392-25*)
ITEM
NO
LOCATION
COMMODORE
PARTS NO
VENDOR
PARTS NO
PARTS NAME
1 01,6,7,9,11 601212-34 Y5251-104 Cap. ceramic O.lpF 25V
2
CIO
601212-35
Y5216-102
Cap. ceramic 1000PF 50V
3 CNl
601212-36
Y6147-030
Connector
4 CN2 601212-37
Y6108-008
Connector
5 CN3 601212-38 Y6108-006
Connector
6 CN5
601212-39
Y6108-002 Connector
7 CN6 601212-40 Y6150-113
Connector
8
CN4 601212-41
Y6108-006Y
Connector
SA NO. Y8392SA
REV. NO. B
SHEET NO. 3/9
TYPE Q'TY COMMENT MANUFACTURER
@ ¥
RT-DSKC85TK-
YF104Z
5
KCK
DD308-959F104Z25
Murata
SS45D1C104ZYR TDK
RT-HE5 0TK-YB102K 1 KCK
DD104-989B102K50
Murata
CK45B1H102KYR TDK
128D-030P2B-L14N
1
DDK
00 8272 230 001162
Elco
XC5A-3072-1
OMRON
5233-08A 1
Molex
5233-06A 1 Molex
5233-02A 1
Molex
HBLB13S-1J 1 Burndy
5233-06A-YE 1
Molex
Page 100
@ ¥
SHEET NO. 4/9
Origin
T.I.
Motorola
F.C.
NEC
Toshiba
NEC
Sanken
NEC
Toshiba
Rectron
Origin
i
Q'TY COMMENT MANUFACTURER
SA NO. Y8392SA
REV. NO. B
i JRC
i Toshiba
i
i Toshiba
i
TYPE
NJM431C
MC431C
TL431AWC
pPC1093J
1IA431C
2SC3148
TLP-580
2SC3531
LB156
2SC3668
05Z7.5X
RD7.5EB1 i Adjust. Diode NEC
RGP10D 2 GI
RD6.8EB1
SM-1A-02FR
SM-1A-08FR 1
FR103
RGP10K GI
PARTS NAME
Photo-coupler
IC
Power Supply Section
Transistor
Transistor
Diode Stack 600V 1.5A
Diode 200V 1A
Diode 800V 1A
TITLE: Power/DriverPCB SA
PARTS NO. 601212-06 (Y8392-25*)
VENDOR
PARTS NO
Y2601-431
Y3303-148
Y3802-002
Y3602-004
PARTS NO
COMMODORE
LOCATION
NO
PARTS LIST for MPS 1200 (EU)
ITEM
i IC101 601212-42
601212-43
PI-101
2
3 TR101 601212-44
601212-45 Y3303-668
DS101 601212-46 Y3603-001
6 ZD101 601212-47 Y3713-075A Zener diode
5
4 TR102
601212-48 Y3713-068A Zener diode
ZD102
8 D105,113 601212-49 Y3602-001
7
D106 601212-50
9
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