TEC B-450 SERIES User manual

TEC Thermal Printer
B-450 SERIES
Original Dec., 1998
(Revision May, 2000)
PRINTED IN JAPAN
Maintenance Manual
Document No. EO18-33003A

EO18-33003A
TABLE OF CONTENTS
1. UNPACKING ...................................................................................................... 1- 1
1.1 PROCEDURE ............................................................................................. 1- 1
1.2 CHECKS ..................................................................................................... 1- 2
2. MAJOR UNIT REPLACEMENT.......................................................................... 2- 1
2.1 REPLACING THE CPU PC BOARD........................................................... 2- 1
2.2 REPLACING THE MOTOR......................................................................... 2- 3
2.2.1 Ribbon Motor.................................................................................... 2- 3
2.2.2 Stepping Motor................................................................................. 2- 5
2.3 REPLACING THE PS UNIT ........................................................................ 2- 6
2.4 REPLACING THE PRINT HEAD ............................................................... 2-10
2.5 REPLACING THE HEAD CONTROL PC BOARD
(FOR B-452-HS MODEL)........................................................................... 2-11
2.6 REPLACING THE MEDIA SENSOR.......................................................... 2-12
2.6.1 B-452-TS Model .............................................................................. 2-12
2.6.2 B-452-HS Model.............................................................................. 2-15
2.7 REPLACING THE 600 DPI EXPIO PC BOARD
(FOR B-452-HS MODEL)........................................................................... 2-18
3. INSTALLATION PROCEDURE FOR THE OPTIONAL EQUIPMENT................ 3- 1
3.1 CUTTER MODULE (B-7204-QM) ............................................................... 3- 1
3.1.1 Pacing List........................................................................................ 3- 1
3.1.2 Installation Procedure ...................................................................... 3- 1
3.2 CENTRONICS INTERFACE BOARD (B-7704-C-QM) ............................... 3- 7
3.2.1 Packing List...................................................................................... 3- 7
3.2.2 Installation Procedure ...................................................................... 3- 7
3.3 EXPANSION I/O INTERFACE BOARD (B-7704-IO-QM) ........................... 3- 9
3.3.1 Packing List...................................................................................... 3- 9
3.3.2 Installation Procedure ...................................................................... 3- 9
3.4 EXPANSION MEMORY BOARD (B-7804-E1M-QM)................................. 3-11
3.4.1 Packing List..................................................................................... 3-11
3.4.2 Installation Procedure ..................................................................... 3-11
3.5 LAN I/F BOARD (B-7704-LAN-QM) ........................................................... 3-12
3.5.1 Packing List..................................................................................... 3-12
3.5.2 Installation Procedure ..................................................................... 3-12
3.6 PROGRAMMABLE KEYBOARD (KB-80-QM) ........................................... 3-14
3.6.1 Installation Procedure ..................................................................... 3-14
3.7 STRIP MODULE (B-7904-H-QM) .............................................................. 3-15
3.7.1 Packing List..................................................................................... 3-15
3.7.2 Installation Procedure ..................................................................... 3-16
4. TROUBLESHOOTING........................................................................................ 4- 1
5. ONLINE OPERATION ........................................................................................ 5- 1
5.1 RESET OPERATION .................................................................................. 5- 1
5.1.1 When using the KB-80-QM Optional Keyboard ............................... 5- 1
5.1.2 When using the operation panel ...................................................... 5- 3
Page

EO18-33003A
Page
6. DIAG. TEST OPERATION.................................................................................. 6- 1
6.1 OUTLINE OF THE DIAG. TEST OPERATION ........................................... 6- 1
6.1.1 When using the KB-80-QM Optional Keyboard ............................... 6- 1
6.1.2 When using the operation panel ...................................................... 6- 2
6.2 SELF TEST MODE (When using the KB-80-QM Optional Keyboard) ........ 6- 3
6.2.1 Maintenance Counter and Automatic Diagnostic Printings.............. 6- 3
6.3 PARAMETER SETTING MODE
(When using the KB-80-QM Optional Keyboard) ....................................... 6-11
6.3.1 Feed Length Fine Adjustment ......................................................... 6-13
6.3.2 Cut/Strip Position Fine Adjustment ................................................. 6-14
6.3.3 Back Feed Length Fine Adjustment ................................................ 6-15
6.3.4 X Axis Fine Adjustment ................................................................... 6-20
6.3.5 Print Tone Fine Adjustment (Thermal Transfer Print) ..................... 6-22
6.3.6 Print Tone Fine Adjustment (Thermal Direct Print) ......................... 6-23
6.3.7 Font Code Selection........................................................................ 6-24
6.3.8 Font Zero Selection......................................................................... 6-25
6.3.9 Transmission Control Mode Selection ............................................ 6-26
6.3.10 Control Code Selection ................................................................... 6-27
6.3.11 Ribbon Take-up Motor Voltage Fine Adjustment ............................ 6-28
6.3.12 Ribbon Feed Motor Voltage Fine Adjustment ................................. 6-29
6.3.13 Strip Wait Status Setting ................................................................. 6-30
6.3.14 Threshold Manual Fine Adjustment for the Black Mark Sensor ...... 6-31
6.3.15 Threshold Manual Fine Adjustment for the Feed Gap Sensor........ 6-32
6.3.16 Kanji Code Selection....................................................................... 6-33
6.3.17 Feed Speed Adjustment.................................................................. 6-34
6.3.18 Character Code 5CH Selection....................................................... 6-36
6.3.19 Euro Font Code Setting................................................................... 6-37
6.4 TEST PRINT MODE (When using the KB-80-QM Optional Keyboard) ..... 6-38
6.5 SENSOR SETTING MODE
(When using the KB-80-QM Optional Keyboard) ....................................... 6-44
6.5.1 Thermistor Check............................................................................ 6-44
6.5.2 Black Mark Sensor Adjustment ....................................................... 6-45
6.5.3 Feed Gap Sensor Adjustment......................................................... 6-46
6.6 SENSOR SETTING MODE (When using the operation panel) ................. 6-47
6.7 THRESHOLD SETTING (When using the operation panel) ...................... 6-48
6.8 RAM CLEAR MODE (When using the KB-80-QM Optional Keyboard) ..... 6-49
6.8.1 Maintenance Counter Clear ............................................................ 6-51
6.8.2 Parameter Clear.............................................................................. 6-52
6.9 RAM CLEAR MODE (When using the operation panel) ............................ 6-53
6.9.1 Maintenance Counter Clear ............................................................ 6-53
6.9.2 Parameter Clear.............................................................................. 6-53
6.10LAN I/F SETTING MODE
(When using the KB-80-QM Optional Keyboard) ....................................... 6-54
6.11HEAD BROKEN ELEMENT CHECK (B-452-HS MODEL) ........................ 6-56

EO18-33003A
7. PROGRAM DOWN LOAD FOR PRINTER......................................................... 7- 1
7.1 FLOPPY DISK............................................................................................. 7- 1
7.2 SETUP ........................................................................................................ 7- 1
7.2.1 Connecting the Printer to the PC ..................................................... 7- 1
7.2.2 Program Download FDK (3.5”, 2HD, 1.44MB) ................................. 7- 1
7.3 DOWN LOAD PROCEDURE (DOS Version).............................................. 7- 2
7.4 ERROR CODE............................................................................................ 7- 3
7.5 DOWN LOAD PROCEDURE (WINDOWS Version) ................................... 7- 4
7.6 ERROR MESSAGE .................................................................................... 7- 7
8. PROGRAM DOWN LOAD FOR KEYBOARD .................................................... 8- 1
8.1 OUTLINE..................................................................................................... 8- 1
8.2 SETUP ........................................................................................................ 8- 1
8.3 BLOCK DIAGRAM FOR FILE LOADING (CONNECTION) ........................ 8- 1
8.4 DOWN LOAD PROCEDURE ...................................................................... 8- 2
8.4.1 Program download mode ................................................................. 8- 2
8.4.2 Program file maintenance mode (Deleting program files)................ 8- 3
8.5 DOWNLOAD PROCEDURE (WINDOWS Version) .................................... 8- 4
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 © 2000
by TOSHIBA TEC CORPORATION
All Rights Reserved
570 Ohito, Ohito-cho, Tagata-gun, Shizuoka-ken, JAPAN
Page

1-1
EO18-33003A
1. UNPACKING
Fig. 1-1
1. UNPACKING
1.1 PROCEDURE
1) Open the carton.
2) Unpack the side pads (L)/(R) and cushions and the printer from the carton.
3) Unpack the accessories from the carton.
1.1 PROCEDURE
Side Pad (R) Printer Owner’s Manual
Cushion
Cushion
Carton Power Cord
Side Pad (L)
Supply
Holder
Base
Supply Holder
Dust Cover Base
Dust Cover Ass’y
Carton
Ribbon
CD ROM
Label
Centronics Interface Cable
Accessory
(For B-452-QP-PAC model)
Accessory
(B-452-HS Mosel)

1-2
EO18-33003A
1. UNPACKING
1.2 CHECKS
5) Open the top cover.
6) Remove the three pieces of tape and print head pad from the printer.
7) Place the printer on a level surface.
1.2 CHECKS
1) Check for damage or scratches on the printer.
2) Confirm that none of the accessories are missing.
NOTE: Keep the carton, pads and cushions for later transport.
Fig. 1-3
4) Remove the three pieces of tape from the printer.
Fig. 1-2
Tape
Tape
Print Head Pad
Print Head
Platen

2-1
EO18-33003A
2. MAJOR UNIT REPLACEMENT
WARNING!
Disconnect power cord before replacing important parts.
2.1 REPLACING THE CPU PC BOARD
2. MAJOR UNIT REPLACEMENT
■Lubrication
CAUTION: 1) Lubrication: During parts replacement
2) Kinds of oil: Kinds of oil: FLOIL G-488: 1Kg can. (Part No. 19454906001).
Any machine is generally in its best condition when delivered; therefore, it is necessary to try to keep
this condition. Unexpected failure occurs due to lack of ioil, debris or dust. To keep its best condition,
periodicallycleanthemachineandapplyproperkindsofoiltoeachpartinwhichlubricationisneeded.
Although the frequency of lubrication varies according to how much the machine is used, at least it is
necessary to lubricate before the machine becomes dry. It is also necessary to wipe off excessibe oil
as it collects dirt.
Fig. 2-1
2.1 REPLACING THE CPU PC BOARD
NOTE: FortheB-452-HSmodel,thefollowingPCboardsneedtoberemovedbeforeremovingtheCPU
PC board. Refer to the sections below.
Head Control PC Board (Refer to Section2.5.)
600 DPI EXPIO PC board (Refer to Section 2.7.)
Centronics interface Board (Refer to Section 3.2.)
1) Turn the power off.
2) Open the top cover.
3) Remove the two PT-3x10 screws to detach the top cover.
Top Cover PT-3x10 Screw Top Cover
CAUTION: Do not spray the inside of the printer with lubricants. Unsuitable oil can dam-
age the machanism.

2-2
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.1 REPLACING THE CPU PC BOARD
5) RemovethefivePT-3x10screws,the two SMW-3x6 screws andthe ground wire todetach the CPU
PC board.
6) Replace the CPU PC board with a new one, and then reassemble in the reverse order of removal.
Fig. 2-3
CPU PC Board SMW-3x6 Screw PT-3x10 Screw SMW-3x6 Screw
PT-3x10 Screw Ground Wire CPU PC Board PT-3x10 Screw
Fig. 2-2
4) Disconnectthe nine harnessesfromCN3to CN5,CN9,CN12,CN13, CN14, CN20andCN21 on the
CPU PC board.
CN13
CN20
CN12
CN9
CN5
CN4
CN3
CN21
CPU PC Board
CN14

2-3
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.2 REPLACING THE MOTOR
2.2 REPLACING THE MOTOR
Before removing the motors, refer to Section 2.1 to detach the top cover and CPU PC board.
2.2.1 Ribbon Motor
1) Remove the two PT-3x10 screws and harnesses to detach the ribbon motor attaching plate.
Fig. 2-4
PT-3x10 Screw
Harness
PT-3x10 Screw
Harness
Ribbon Motor
Attaching Plate
Ribbon Motor Attaching Plate

2-4
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.2 REPLACING THE MOTOR
Fig. 2-5
2) Remove the four SMW-2.6x6 screws to detach the two ribbon motors from the ribbon motor
attaching plate.
3) Replacetheribbon motors with newones, andthen reassemblein thereverse orderof removal.
SMW-2.6x6 Screw Ribbon Motor
SMW-2.6x6 Screw
Ribbon Motor
Ribbon Motor Attaching Plate
FLOIL G-488
FLOIL G-488

2-5
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.2 REPLACING THE MOTOR
2.2.2 Stepping Motor
Fig. 2-6
2) Remove the two SMW-3x6 screws to detach the stepping motor.
3) Replacethesteppingmotorwithanewone,andthenreassembleinthereverseorderofremoval.
Fig. 2-7
PT-3x10 Screw
Stepping Motor Ass’y
SMW-3x6 Screw
Stepping Motor
1) Remove the two PT-3x10 screws to detach the stepping motor ass’y.
WARNING!
Be careful not to get burned when handling the stepping motor
since it becomes very hot while printing.

2-6
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.3 REPLACING THE PS UNIT
2.3 REPLACING THE PS UNIT
Fig. 2-8
Fig. 2-9
3) Disconnect the power harness and fan motor harness from CN9 and CN8 on the CPU PC board.
Side Cover R
PT-3x10 Screw
CPU PC Board
Power Harness (CN8)
1) Refer to Section 2.1 to detach the top cover.
2) Remove the T-3x10 screw to detach the side cover R.
WARNING!
Replace only with the same type and rated of fuse for contin-
ued protection against risk of fire.
Fan Motor Connector (CN9)

2-7
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.3 REPLACING THE PS UNIT
Fig. 2-10
4) Release the two hooks securing the printer unit.
5) Detach the printer unit from the bottom cover.
Fig. 2-11
CPU PC Board
Hook
Head Release Lever R
Printer Unit
PS Unit Bottom Cover

2-8
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.3 REPLACING THE PS UNIT
Fig. 2-12
6) Detach the PS unit from the bottom cover.
7) Disconnectthepowerharness from CN3 on thePSunit. Remove the SMW-4x8 screw to releasethe
ground wire of the inlet ass’y.
Fig. 2-13
Bottom Cover
PS Unit
CN3
Power Harness
SMW-4x8 Screw
Inlet Ass’y
Ground Wire
PS Unit

2-9
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.3 REPLACING THE PS UNIT
Fig. 2-14
8) Disconnect the inlet ass’y from CN1 on the PS unit.
9) Replace the PS unit with a new one, and then reassemble in the reverse order of removal.
PS Unit Inlet Ass’y
CN1

2-10
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.4 REPLACING THE PRINT HEAD
2.4 REPLACING THE PRINT HEAD
Fig. 2-15
Fig. 2-16
2) Disconnect the two print head harnesses. Then, pull the print head ass’y upward while pulling the
knob.
Print Head Block
Head Release Lever R
1) Push down the head release lever R to open the print head block.
CAUTION: 1. NEVER touch the element when handling the print head.
2. NEVER touch the connector pins. Touching them may cause a static elec-
tric discharge which will damage the print head.
3) Replace the print head with a new one, and then reassemble in the reverse order of removal.
Print Head Ass’y Knob
Harness
Print Head Ass’y

2-11
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.5 REPLACING THE HEAD CONTROL PC BOARD (FOR THE B-452-HS
MODEL)
1) Open the top cover. (Refer to Section 2.1.)
2) Remove the two PT-3x10 screws to detach the top cover. (Refer to Section 2.1.)
3) Disconnectthe harnessandflat cablefromCN1 and CN2on the headcontrolPC board,respectively.
NOTE: When re-connecting the flat cable, be careful of the terminal orientation.
4) Detachthe headcontrolPC board fromthethree lockingsupportsthat secure ittothe CPUPCboard.
2.5 REPLACING THE HEAD CONTROL PC BOARD (FOR THE B-452-HS MODEL)
5) Disconnect the harness from CN3 on the head control PC board.
6) Replace the head control PC board with a new one, and then reassemble in the reverse order of
removal.
Fig. 2-17
Fig. 2-18
Locking Support
Flat Cable
Harness
CN1
CN2
CN3
Head Control PC
Board
Locking Support

2-12
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.6 REPLACING THE MEDIA SENSOR
2.6.1 B-452-TS Model
Replacing the Sensor PCB (TR)
1) Push down the head release lever R to open the print head block. (Refer tp Sectopm 2.4.)
2) Remove the sensor holder from the sensor holder arm.
2.6 REPLACING THE MEDIA SENSOR
Fig. 2-19
3) Remove the sensor cover sheet from the sensor holder.
Fig. 2-20
Sonsor Holder Arm
Sensor Holder
SonsorCoverSheet
Sensor Holder

2-13
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.6 REPLACING THE MEDIA SENSOR
4) Release the sensor holder while spreading the tabs of the sensor holder. Be careful not to break
the tabs when spreading them.
5) Disconnect the harness from the sensor PCB (TR), and remove the sensor PCB (TR) from the
sensor holder by releasing it from the two rivets.
Fig. 2-21
6) Replace the sensor PCB (TR) with a new one, and then reassemble in the reverse order of
removal.
7) After replacement, refer to Section 6.7 THRESHOLD SETTING in this manual to make a sensor
adjustment.
Fig. 2-22
Sensor Holder
Fixed Portion
Tab
Sensor PCB (TR) Connector
Harness
Rivet
Sensor Holder

2-14
EO18-33003A
2. MAJOR UNIT REPLACEMENT
Replacing the Sensor PCB (LED)
1) Open the top cover. (Refer to Section 2.1)
2) Remove the top cover. (Refer to Section 2.1.)
3) Push down the head release lever R to open the print head block. (Refer to Section 2.4.)
4) Detach the printer unit from the bottom cover. (Refer to Section 2.3.)
5) Disconnectthe harnessfromthe sensorPCB(LED) which isattached to thebottomof theprinter
unit. Then remove the rivet to detach the sensor PCB from the printer unit.
6) Replace the sensor PCB (LED) with a new one, and then reassemble in the reverse order of
removal.
7) After replacement, refer to Section 6.7 THRESHOLD SETTING in this manual to make a sensor
adjustment.
2.6 REPLACING THE MEDIA SENSOR
Fig. 2-23
Printer Unit
Sensor PCB (LED)
Rivet
Harness