TEC B-480 SERIES User manual

PRINTED IN JAPAN
TEC Thermal Printer
B-480 SERIES
Original Jun., 1999
(Revised )
Document No. EO18-33004
Maintenance Manual

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.

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 PS Unit .....................................................................2- 2
2.2 Replacing the CPU PC Board .........................................................2- 3
2.3 Replacing the Centronics I/F PC Board...........................................2- 4
2.4 Replacing the I/O PC Board ............................................................2- 5
2.5 Replacing the Stepping Motor .........................................................2- 6
2.6 Replacing the Ribbon Motors ..........................................................2- 7
2.7 Replacing the Solenoid (QP Model only).........................................2- 8
2.8 Replacing the Print Head................................................................2- 10
2.9 Replacing the Platen and Feed Roller............................................2- 11
2.10 Replacing the Paper Sensor...........................................................2- 13
2.11 Replacing the Ribbon Back Tension Block.....................................2- 14
2.12 Replacing the Pinch Roller Shaft Ass'y ..........................................2- 15
2.13 Correcting Skew Printing ................................................................2- 17
3. INSTALLATION PROCEDURE FOR THE OPTIONAL EQUIPMENT ....3- 1
3.1 PCMCIA PC Board (B-8700-PC-QM)..............................................3- 1
3.2 EXP I/O PC Board (B-8700-IO-QM) ................................................3- 4
3.3 Cutter Module (B-4205-QM) ............................................................3- 6
3.4 Ribbon Saving Module (B-4905-R-QM)...........................................3- 8
3.5 Strip Module (B-4905-H-QM)..........................................................3- 10
3.6 Fanfold Paper Guide Module (B-4905-FF-QM) ..............................3- 13
3.7 Cutter Module (B-8204-QM) ...........................................................3- 14
4. TROUBLESHOOTING.............................................................................4- 1
5. DIAG. TEST OPERATION.......................................................................5- 1
5.1 Outline of the Diag. Test Operation .................................................5- 1
5.2 Self Test Mode ................................................................................5- 3
5.3 Parameter Setting Mode.................................................................5- 14
5.4 Test Print Mode ..............................................................................5- 53
5.5 Sensor Setting Mode ......................................................................5- 60
5.6 RAM Clear Mode ............................................................................5- 65
5.7 IP Address Setting Mode................................................................5- 70
5.8 BASIC Setting Mode.......................................................................5- 72
EO18-33004
(Revision Date: Dec. 14, 2001)
Page

EO18-33004
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.
Page
Copyright © 1999
by TOSHIBA TEC CORPORATION
All Rights Reserved
570 Ohito, Ohito-cho, Tagata-gun, Shizuoka-ken, JAPAN
6. ON LINE OPERATION ............................................................................6- 1
6.1 Reset Operation ..............................................................................6- 1
6.2 Dump Mode .....................................................................................6- 2
7. PROGRAM DOWNLOAD........................................................................7- 1
7.1 Outline of Features ..........................................................................7- 1
7.2 Software Installation .......................................................................7- 1
7.2.1 System Requirements........................................................7- 1
7.2.2 Setup..................................................................................7- 2
7.3 Install Program for B-482.................................................................7- 4

1-1
1. UNPACKING EO18-33004
1.1 Procedure
1. UNPACKING
1.1 Procedure
1) Open the carton.
2) Unpack the accessories from the carton.
3) Unpack the side pad (L)/(R) and the printer from the carton.
4) Place the printer on the level surface.
Owner's Manual
1.2 Checks
1) Check for damages or scratches on the machine.
2) Confirm that none of the accessories are missing.
NOTE: Keep the carton and side pads for later transport.
Side Pad (L)
Power Cord
Fan Filter
(QP model only)
Carton
Side Pad (R)
Rear Pad
Thermal Printer
Unpacking Procedure
Fig. 1-1

2-1
2. MAJOR UNIT REPLACEMENT EO18-33004
2. MAJOR UNIT REPLACEMENT
2. MAJOR UNIT REPLACEMENT
CAUTION:
1.NEVERseparatetheribbonmotorsfromtheattachingplate,(bracket)because doing so will
change their adjustment. (See Fig. 2-11)
2.NEVER remove the two screws painted red on the side of the print block. (See Fig. 2-15)
3.NEVER remove the four screws on the side of the print block. (See Fig. 2-15)
4.NEVER remove unmentioned screws because doing so will change their adjustment.
1) Turn the power off.
2) Open the top cover to remove the four FL-3x5 screws. Slide the top cover to the left to release the
damper and remove the top cover.
3) Remove the seven screws (FL-4x5 and B-4x5) to remove the left side cover.
4) Disconnect the FAN motor connector from the PS unit.
WARNING!
Disconnect the power cord before replacing the main parts.
Fig. 2-1
NOTE: Instructions to remove the top cover and left side cover are omitted from each removal/
installation procedure provided below.
■Lubrication
CAUTION: 1.Lubrication: During parts replacement
2.Kinds of oil: FLOIL G-488: 1kg kan (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 oil, debris or dust. To keep its best condition,
periodically clean the machine and apply proper kinds of oil to each part in which lubrication is needed.
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 excessive oil
as it collects dirt.
CAUTION: Donotspraytheinsideoftheprinterwithlubricantsunsuitableoilcandamagethe
mechanism.
Top Cover
Screw (FL-3x5)
Screw (FL-4x5)
Left Side Cover
FAN Motor
Screw (B-4x5) Damper

2-2
2. MAJOR UNIT REPLACEMENT EO18-33004
2.1 Replacing the PS Unit, I/F PC Board and CPU PC Board
2.1 Replacing the PS Unit
CAUTION: Replace only with same type and ratings of fuse for continued protection against
risk of fire.
1) Remove the I/O PC board. (Refer to Section 2.4).
2) Remove the three FL-4x6 screws and disconnect the two connectors to detach the PS unit.
Fig. 2-2
Connector
Screw (FL-4x6)
PS Unit
Screw (FL-4x6)

2-3
2. MAJOR UNIT REPLACEMENT EO18-33004
2.2 REPLACING THE CPU PC BOARD
1) Refer to Section 2 and remove the top cover and left side cover.
2) Disconnect the harnesses from CN2, 5, and 7 on the CPU PC board.
3) Remove the four SM-3x6 screws to detach the CPU PC board.
2.2 REPLACING THE CPU PC BOARD
Fig. 2-3
CN2 CN5 CN7
CPU PC BoardSM-3x6 screw
4) Replace the CPU PC board and reassemble in the reverse order of removal.
5) Adjust the black mark sensor.
As the black mark sensor is adjusted by key entries in system mode, refer to page 5-44 for the
adjustment procedure.
6) Adjust the feed gap sensor.
As the feed gap sensor is adjusted by key entries in system mode, refer to page 5-45 for the
adjustment procedure.
CAUTION: Be careful when replacing the CPU PC board, since a non-resettable counter
(IC15) is installed on this board. (Refer to Section 5.2.1 Maintenance Counter
Printing.)
If this counter should be reset, replace IC15.

2-4
2. MAJOR UNIT REPLACEMENT EO18-33004
2.3 REPLACING THE CENTRONICS I/F PC BOARD
1) Refer to Section 2 and remove the top cover and left side cover.
2) Disconnect the harness from CN1 on the CENTRO PC board.
2.3 REPLACING THE CENTRONICS I/F PC BOARD
Fig. 2-4
Fig. 2-5
CN1
CENTRO PC Board
SM-3x8 Screw
CENTRO PC Board
3) Remove the two SM-3x8 screws to detach the CENTRO PC board.
4) Replace the CENTRO PC board and reassemble in the reverse order of removal.

2-5
2. MAJOR UNIT REPLACEMENT EO18-33004
2.4 REPLACING THE I/O PC BOARD
1) Refer to Section 2 and remove the top cover and left side cover.
2) Disconnect the harnesses from CN2 to 4, 8 to 14 and 17 on the I/O PC board, and remove the FL-
4x6 screw.
3) Detach the I/O PC board from the locking support.
2.4 REPLACING THE I/O PC BOARD
Fig. 2-6
Locking Support
CN17
CN13
CN12
CN11
CN10
CN9
Locking Support
CN2 CN3 CN4
I/O PC Board
4) Replace the I/O PC board and reassemble in the reverse order of removal.
5) Adjust the ribbon end sensor.
Use the following Ribbons; TTM-78 (Maker: Fujicopian)
1Set the ribbon so that the ribbon end sensor can detect the ribbon. Turn the power on.
2TurntheVR1so thatthe voltagebetween Frameplate (GND)and PinTPRETRis3.0±0.2V with
an oscilloscope.
3Turn the power off and mount the left side cover and top cover.
CN8
FL-4x6 Screw
Fig. 2-7
Pin TPRETR
VR1
CN14

2-6
2. MAJOR UNIT REPLACEMENT EO18-33004
2.5 Replacing the Stepping Motor
Range: 1V/0.2 m sec.
Voltage
3.0 – 0.2 V
GND
VR1
2.5 Replacing the Stepping Motor
1) Remove the two black screws to detach the front plate, remove the two FL-4x6 screw and FL-4x8
screw to detach the belt cover.
Fig. 2-9
2) Unclamp and disconnect the connector from CN17 on the I/O PC board.
Belt Cover
FL-4x8 Screw
Black Screw
Front Plate
FL-4x6 Screw
Fig. 2-8

2-7
2. MAJOR UNIT REPLACEMENT EO18-33004
2.6 Replacing the Ribbon Motors
4) Whenreplacingthesteppingmotor,placetheplatenbeltfirstthenthefeedrollerbeltaroundthepinion
gear so that the partition is positioned between two belts. Hold down the stepping motor at 3.5 kg ±
300 g force and secure it so that the belts have no slack or disengagement.
5) Reassemble in the reverse order of removal.
Fig. 2-10
Screw (SM-4x8)
Feed Roller Belt
Partition
Platen Belt
CN7
I/O PC Board
CN13
Pinion Gear
Stepping Motor
PS Unit
Clamp
3) Removethetwo SM-4x8 screws, loosen the two belts from the pinion gear, and remove the stepping
motor.
2.6 Replacing the Ribbon Motors
CAUTION: NEVERseparatetheribbonmotorsfromtheattachingplatebecausedoingsowill
change their adjustment.
1) Disconnect the two connectors and remove the two SM-3x5B screws to detach the ribbon motors.
Fig. 2-11
2) Replace the ribbon motors, then align the dowels to attach the ribbon motors. Reassemble in the
reverse order of removal.
Dowels
Attaching Plate
FLOIL G-488
FLOIL G-488
Attaching Plate
Ribbon Motor
Screw (SM-3x5B)
Connector (Red)
Connector (Black)
Screw (SM-3x5B) Ribbon Motor

2-8
2. MAJOR UNIT REPLACEMENT EO18-33004
2.7 Replacing the Solenoid
2.7 Replacing the Solenoid (QP Model only)
NOTE: The following procedure can be employed without removing the top cover and left side cover.
1) Before removing the ribbon stopper, check its attaching direction for later installation. Remove the
ribbon stopper from the ribbon shaft on which the ribbon is wound.
2) RemovethetwoSM-4x8Bscrews,disconnecttheconnectorCN1ontheRSVPCboardtodetachthe
solenoid unit.
Fig. 2-12
3) RemovethetwoSM-3x5BscrewsanddisconnecttheconnectorCN2ontheRSVPCboardtodetach
the solenoid.
Fig. 2-13
Connector CN1 (3 pin) Solenoid Attaching Plate Screw (SM-4x8B)
Ribbon Stopper
Ribbon Shaft
CN2 (2 pin)
RSV PC Board
Print Block
Connector CN2 (2 pin)
RSV PC Board
Solenoid
Solenoid Attaching Plate
Screw (SM-3x5B)

2-9
2. MAJOR UNIT REPLACEMENT EO18-33004
NOTE: Makesuretoremoveanydustthatappearsduringremovalorinstallationbecauseitmayaffect
the print quality.
4) Replace the solenoid and attach it to the solenoid attaching plate.
5) Assemble the solenoid unit so that the head up link engages the spring pin.
2.7 Replacing the Solenoid
CAUTION: Take care to orient the screw so that they are vertically aligned with the solenoid
attaching plate.
6) Reasemble in the reverse order of removal.
Fig. 2-14
Solenoid
Spring Pin
Head Up Link

2-10
2. MAJOR UNIT REPLACEMENT EO18-33004
2.8 Replacing the Print Head
CAUTION:
1.NEVER touch the element when handling the print head.
2.NEVERtouch the connector pins toavoid abreakdown ofthe printhead bystaticelectricity.
3.NEVER remove the two screws painted red on the side of the print block.
4.NEVER remove the four screws on the side of the printer block.
5.NEVER remove the print block, otherwise it requires the adjustment of the position when
reassembling.
NOTE: The following procedure can be employed without removing the top cover and the left side
cover.
2.8 Replacing the Print Head
NOTE: Never loosen screws other than two SM-4x8B.
1) Turn the head lever clockwise to lower the print head. Remove the two SM-4x8B screws.
2) Turn the head lever counterclockwise and disconnect the two connectors to detach the print
head from the print block.
3) Replace the print head and connect the connectors.
4) Turn the head lever clockwise and secure the print head with screws in the holes B .
NOTE: Use caution to prevent damage to the element during print head adjustment.
Fig. 2-15
B
A
AB
Screw (SM-4x8B)
Print Block
Head Lever
Connector
Print Head
Connector
Screws
(NEVER remove these screws.)
Screws painted red
(NEVER remove these screws.)

2-11
2. MAJOR UNIT REPLACEMENT EO18-33004
2.9 Replacing the Platen and Feed Roller
Fig. 2-16
Jig Strip Shaft
Platen
Jig
Strip Shaft Platen
Ceramic
Print Head
■Adjusting the print head position
1. Fit the jig in the platen and strip shaft.
2. Press the jig at an angle of 45 until it is sung against the print head. Then secure the print head.
3. Remove the jig.
4. Refer to page 5-68 and clear the maintenance counter.
5. Refer to page 5-53 and perform test print.
NOTES: 1. Use caution to prevent damage to the element during adjustment of the print head.
2. The jig used for the B-472/572 printer is also used.
2.9 Replacing the Platen and Feed Roller
CAUTION:
The pinch roller belt assembled inside the printer does not need to be replaced because it
receives less load.
1) Remove the front plate and belt cover. (Refer to Section 2-5.)
2) Turn the head lever counterclockwise, then remove the E-ring (E-3) and Hold Shaft and release the
ribbon shaft holder plate.
E-ring (M3)
Hold Shaft
Head Lever
Fig. 2-17
Ribbon Shaft Holder Plate

2-12
2. MAJOR UNIT REPLACEMENT EO18-33004
2.9 Replacing the Platen and Feed Roller
3) Remove the six screws (FL-4x6, B-4x12 and P-3x12) to detach the right plate Ass’y.
Fig. 2-18
Right Plate
Screw (B-4x12)
Screw (FL-4x6)
Screw (B-4x12)
Screw (P-3x12)
4) Loosen the two screws (SM-4x8B) fixing the stepping motor to loosen the platen belt and feed roller
belt.
5) Remove the platen belt to detach the platen. Remove the feed roller belt to detach the feed roller.
6) Remove both bearings from the platen or feed roller.
7) Replace the platen and feed roller, put on the belt and assemble it with the printer. The longer belt
is the platen belt.
8) Attach the right plate.
9) Hold down the stepping motor and secure it so that the belts have no slack or disengagement.
(Refer to Section 2-5.)
10) Reassemble in the reverse order of removal.
Fig. 2-19
Feed Roller Belt
Holder
Feed Roller (Gray)
Holder
Platen (Black)
Holder
Platen Belt

2-13
2. MAJOR UNIT REPLACEMENT EO18-33004
2.10 Replacing the Paper Sensor
2.10Replacing the Paper Sensor
NOTE: Turn the knob until the paper sensor reaches full forward.
1) Refer to Section 2.9 and detach the right plate.
2) Remove the FL-4x6 screw to detach the media guide plate.
Fig. 2-20
3) Disconnect the connectors for the paper sensor.
4) Remove M1.5 E-ring, M3 washer and paper sensor unit.
5) Remove M1.5 E-ring, turn the knob counter clockwise, then remove the paper sensor.
Fig. 2-21
Connector (4 pin)
Washer (M3) E-ring (M1.5)
E-ring (M1.5)
Paper Sensor
Sensor Shaft
Knob
Connector (2 pin)
6) Replace the paper sensor and reassemble in the reverse order of removal.
7) After replacing the paper sensor, refer to page 5-44/5-45 and adjust the voltage.
Media Sensor
Printer Block Base
Media Guide Plate
FL-4x6 Screw
1.5 ~ 2.5 mm

2-14
2. MAJOR UNIT REPLACEMENT EO18-33004
3) Replace the ribbon back tension block and reassemble in the reverse order of removal.
2.11Replacing the Ribbon Back Tension Block
1) Turn the head lever counterclockwise, then release the ribbon shaft holder plate.
2) RemovetheM3E-ringandthetwoM3washerstoremovetheribbonbacktensionblock. Atthistime,
removethebacktensionstopperandribbonbacktensionwasherfromtheribbonbacktensionblock.
2.11 Replacing the Ribbon Back Tension Block
Fig. 2-22
Ribbon Back Tension Washer
Back Tension Stopper
Ribbon Back Tension Block
Washer (M3)
E-ring (M3)

2-15
2. MAJOR UNIT REPLACEMENT EO18-33004
2.12 Replacing the Pinch Roller Shaft Ass'y
2.12Replacing the Pinch Roller Shaft Ass’y
1) Turn the head lever to position 3, and release the ribbon shaft holder plate.
2) Remove the black screw to detach the media guide plate.
Fig. 2-23
3) Remove the SM-4x8B screw to detach the spring plate.
4) Remove the six B-4x12 screws to detach the pinch roller cover.
5) Remove the E-5 E-ring to loosen the pinch roller belt, and remove the pinch roller shaft ass’y.
6) After replacing the pinch roller shaft ass’y, make the following adjustment while you reassemble the
pinch roller shaft ass’y in the reverse order of removal.
Fig. 2-24
Media Sensor
Printer Block Base
Media Guide Plate
FL-4x6 Screw
SM-4x8B
Spring Plate
B-4x12
Pinch Roller Cover
W-8
Pinch Roller Shaft Ass'y
Pinch Roller Cover
Pinch Roller Belt
E-5
1.5 ~ 2.5 mm