TEC B-672 Series User manual

TEC Thermal Printer
B-670 SERIES
Original Jan., 1997
(Revision )
PRINTED IN JAPAN
Maintenance Manual
Document No. EM18-33017
Mantenimiento Periféricos Informáticos C/Canteras,15 28860 Paracuellos de Jarama Madrid Tel: [phone] www.mpi.com.es

NOTES: 1. Manual instructions must be followed when installing option kits or adding cables
to avoid system failures and to insure proper performance and operation.
2. Failure to follow manual instructions or any unauthorized modification,
substitution or change to this product will void the limited product warranty.
WARNING!
Follow all manual instructions. Failure to do so could create safety hazards such as fire or
electrocution.
Mantenimiento Periféricos Informáticos C/Canteras,15 28860 Paracuellos de Jarama Madrid Tel: [phone] www.mpi.com.es

Page
EM18-33017
(Revision Date: Jul. 26 '99)
CAUTION:
1. This manual may not be copied in whole or in part without prior written permission of
TOSHIBA TEC.
2. The contents of this manual may be changed without notification.
3. Please refer to your local Authorized Service representative with regard to any queries
you may have in this manual.
Copyright © 1999
by TOSHIBA TEC CORPORATION
All Rights Reserved
570 Ohito, Ohito-cho, Tagata-gun, Shizuoka-ken, JAPAN
TABLE OF CONTENTS
1. UNPACKING ...................................................................................................... 1- 1
1.1 PROCEDURES........................................................................................... 1- 1
1.2 CHECKS ..................................................................................................... 1- 1
2. MAJOR UNIT REPLACEMENT.......................................................................... 2- 1
2.1 REPLACING THE CPU PC BOARD........................................................... 2- 2
2.2 REPLACING THE PS UNIT ........................................................................ 2- 4
2.3 REPLACING THE STEPPING MOTORS AND BELTS .............................. 2- 5
2.4 REPLACING THE RIBBON MOTORS........................................................ 2- 6
2.5 REPLACING THE PRINT HEAD ................................................................ 2- 6
2.6 REPLACING THE PLATEN ........................................................................ 2- 7
2.7 REPLACING THE ROLLER BELT AND FEED ROLLER ........................... 2- 8
2.8 REPLACING THE MEDIA SENSORS ....................................................... 2-10
2.9 PERIODIC MAINTENANCE PROCEDURE............................................... 2-11
3. INSTALLATION PROCEDURE FOR OPTIONAL EQUIPMENT ........................ 3- 1
3.1 CUTTER MODULE (B-4208-QM) ............................................................... 3- 1
3.2 MEMORY MODULE.................................................................................... 3- 4
3.3 STRIP MODULE (B-4908-H-QM) ............................................................... 3- 5
3.4 STABILIZER KIT .......................................................................................... 3-6
4. MECHANISM DESCRIPTION ............................................................................ 4- 1
4.1 CUTTER DRIVE.......................................................................................... 4- 1
5. TROUBLESHOOTING........................................................................................ 5- 1
6. DIAG. TEST OPERATION.................................................................................. 6- 1
7. PROGRAM DOWN LOAD .................................................................................. 7- 1
7.1 FLOPPY DISK............................................................................................. 7- 1
7.2 SETUP ........................................................................................................ 7- 1
7.3 DOWN LOAD PROCEDURE ...................................................................... 7- 2
7.4 ERROR CODE............................................................................................ 7- 3
Mantenimiento Periféricos Informáticos C/Canteras,15 28860 Paracuellos de Jarama Madrid Tel: [phone] www.mpi.com.es

1-1
EM18-33017
1.1 PROCEDURE
1. UNPACKING
1.2 CHECKS
1) Check for damage or scratches on the machine.
2) Confirm that none of the accessories are missing.
NOTE: Keep the carton and side pads for later transport.
Carton
Thermal printer
Side Pad (L)
Accessory Board
Left/Right Side Holders Holder Shaft
Owner’s Manual
Unpacking
Procedure
Holder Base
Media
Holder
Thumbscrew (M-4x6)
Power Cord
Print Head Cleaner
Side Pad (R)
1. UNPACKING
1.1 PROCEDURE
1) Open the carton.
2) Unpack the accesories from the carton
3) Unpack the side pads (L)/(R) and the printer from the carton.
4) Place the printer on a level surface.
Fig. 1-1
Mantenimiento Periféricos Informáticos C/Canteras,15 28860 Paracuellos de Jarama Madrid Tel: [phone] www.mpi.com.es

2-1
EM18-33017
2. MAJOR UNIT REPLACEMENT
CAUTION:
1. NEVER separate the ribbon motors from the attaching plate (bracket), because doing so will
change their adjustment. (See Fig. 2-8)
2. NEVER remove the two screws painted red on the side of the print block.
3. NEVER remove screws unless directed to do so in this manual. Removing screws may change
pre-set adjustments.
WARNING!
CAUTION:
1. Lubrication: During parts replacement
2. Kinds of oil: FLOIL G-488: 1 Kg can. (Parts No. 19454906001).
3. Do not spray the inside of the printer with lubricants. Unsuitable oil can damage the mechanism.
Screw (B-4x6)
Screw (B-3x8)
Left Side Cover
Bottom Plate
Top Cover
Screw (FL-4x6)
Right Side Cover
Screw (B-3x8) Fig. 2-1
2. MAJOR UNIT REPLACEMENT
Disconnect power cord before replacing important parts.
1) Turn the power off.
2) Open the right side and top covers.
3) Remove the six screws (FL-4x6, B-4x6 and B-3x8) to detach the left side cover.
4) Remove the (B-4x6) screw to remove the bottom plate.
NOTE : Instructionstoopenthetopandrightsidecoversandtoremovetheleftsidecoverareomitted
from each removal/installation procedure provided below.
■Lubrication
All machines are generally delivered in their best condition. Efforts shoud be made to keep them that
way. Lack of oil, or the presence of debris or dust, may cause an unexpected failure. To maintain in
optimaloperatingcondition,periodicallycleanthemachineandapplytheproperkindsofoiltoeachpart
in which librication is needed.
Although the frequency of lubrication varies according to how often the machine is used, as a minimum
it is necessary to lubricate before any part becomes dry. It is also necessary to wipe off excessive oil
or it will collect dirt.
2. MAJOR UNIT REPLACEMENT
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2-2
EM18-33017
2. MAJOR UNIT REPLACEMENT
CAUTION:
Replace only with the same type and rated fuse for continued protection against risk of fire.
NOTE: Be sure to support the CPU PC board when detaching the connectors.
3) Replace the CPU PC board and reassemble in the reverse order of removal.
Screw (SM-3x5B)
Connector
Screw (FL-3x5)
Screw (SM-3x5B)
CPU PC Board
2.1 REPLACING THE CPU PC BOARD
1) Detach the 11 connectors from the CPU PC board.
2) Remove the 7 screws (SM-3x5B and FL-3x5) to detach the CPU PC board.
Fig. 2-2
2.1 REPLACING THE CPU PC BOARD
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2-3
EM18-33017
2. MAJOR UNIT REPLACEMENT
CAUTION:
Be careful when replacing the CPU PC board, since a non-resettable counter (IC32) is installed on
thisboard. (Refer to Section 6.2.1 Maintenance Counter Printing.)If this counter should be reset,
replace IC32.
Fig. 2-3
Fig. 2-4
Range : 1V / 0.2 m sec.
Voltage
3.0 0.2V
VR1
GND
4) Adjust the ribbon end sensor.
After replacing the CPU PC board or changing ribbon type, be sure to adjust the ribbon end sensor
in the following procedure with the ribbon being used.
NOTE: Use TOSHIBA TEC-approved ribbons.
Set the ribbon so that the ribbon end sensor
can detect the ribbon, Turn the power on.
Turn the VR1 so that the voltage between Pin
1 (GND) and Pin 7 of CN10 is 3.0 ±0.2 V as
measured with an oscilloscope.
Turn the power off and mount the left side
cover and top cover.
5) Adjust the black mark sensor.
Referto page6-40 forthe adjustmentprocedure forthe blackmark sensorwhich isadjusted bykey
entries in system mode.
6) Adjust the feed gap sensor.
Refer to page 6-41 for the adjustment procedure for the feed gap sensor which is adjusted by key
entries in system mode.
2.1 REPLACING THE CPU PC BOARD
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2-4
EM18-33017
2. MAJOR UNIT REPLACEMENT
4) Replace the PS unit and reassemble in the reverse order of removal. Insert the PS cable into the
notch A .
Fig.2-5
Connecter
CPU PC Board
PS Cable
PS Unit Screw (FL- 4x6)
Screw (FL- 4x6)
A
2.2 REPLACING THE PS UNIT
CAUTION:
Replace only with the same type and rated of fuse for continued protection against risk of fire.
1) Detach all connectors from the CPU PC board.
2) Remove the two screws (FL-4 x 6) to detach the PS unit. Pushing the AC power inlet from behind
will ease the removal of the PS unit.
3) Disconnect the PS cable from the PS unit.
2.2 REPLACING THE PS UNIT
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2-5
EM18-33017
2. MAJOR UNIT REPLACEMENT
4) When replacing the stepping motor, place the platen belt around the pinion gear first, then the feed
rollerbelt,sothatthepartitionispositionedbetweenthetwobelts.Pressdownonthesteppingmotor
with 3.5 Kg ±300 g force and secure it so the platen belt and feed roller belt have no slack, are
engaged ,and evenly tense.
5) Reassemble in the reverse order of removal.
Screw (FL-4x6)
Front Plate
Screw (FL-4x6)
Platen Belt Feed Roller Belt
Screw (FL-4x6)
Fig. 2-6
CPU PC Board
CN14
Screw (SM-4x10C)
Stepping Motor
Fig. 2-7
2.3 REPLACING THE STEPPING MOTOR
1) Remove the 4 screws (FL-4x6) to detach the front plate.
2) Disconnect the cable from CN14 on the CPU PC board.
3) Removethetwoscrews(SM-4x10C),takethetwobeltsoffthepiniongear,andremovethestepping
motor.
2.3 REPLACING THE STEPPING MOTOR
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2-6
EM18-33017
2. MAJOR UNIT REPLACEMENT
CAUTION:
NEVER separate the ribbon motor from the attaching plate because doing so will change their
adjustment.
3) Replace the ribbon motors, then align the dowels to attach the ribbon motors. Reassemble in the
reverse order of removal.
2.5 REPLACING THE PRINT HEAD
Attaching Plate
Ribbon Motor
Screw (SM-3x5B)
Riboon Motor
Screw (SM-3x5B) Attaching Plate
FLOIL G-488 Connector
(Red) FLOIL G-488
Connector
(Black)
Dowels
Fig. 2-8
2.4 REPLACING THE RIBBON MOTORS
1) Remove the CPU PC board. (Refer to section 2.1.)
2) Detach the connector and remove the two SM-3x5B screws to detach the ribbon motors.
NOTE: This procedure can be done without removing the left side cover.
1) Remove the two (B-4x4) screws to detach the head cover plate.
2) Pull right to remove the front shaft.
Head Cover Plate
Screw (B-4 x 4)
Front Shaft Fig. 2-9
CAUTION:
1. NEVER touch the element when handling the print head.
2. NEVER touch the connector pins to avoid damage to the print head by static electricity.
3. NEVER remove the two screwws painted red on the side of the print block.
2.4 REPLACING THE RIBBON MOTORS
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