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3. DISASSEMBLY

AND

REASSEMBLY

EO18-13004

3.2 Disassembling the Main Body

3- 2

3.2 Disassembling the Main Body

3.2.1 Removing the Power Case SA

1. Disconnect the AC adapter cable from the printer.

NOTE: Before disconnect the AC adapter cable, unlock the connector.

2. Remove the four ST-3x8 screws to detach the power case SA.

3.2.2 Removing the Printer Cover SA

1.  Press down the ejector to unhook the printer cover SA.
2.  Remove the two BT-3x8 screws which secure the printer cover SA.
3.  Push up tabs A to unhook the printer cover SA, then unhook tabs B and remove the printer cover

SA.

ST-3x8

Power Case SA

AC Adapter Cable

CAUTION!

Care must be taken not to touch the print head element when removing the printer cover SA.

Fig. 3-1

Fig. 3-2

Printer Cover SA

Print Head

BT-3x8

A

B

Ejector

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Содержание TRST-56 SERIES

Страница 1: ...TECThermal Printer TRST 56 SERIES Original Mar 2001 Revised Document No EO18 13004 PRINTED IN JAPAN Maintenance Manual ...

Страница 2: ...echanism Unit 3 3 3 2 5 Removing the IF PCB Ass y and Control PCB Ass y 3 4 3 2 6 Removing the AC Adapter 3 4 3 2 7 Removing the Operation Panel SA and Front Cover 3 5 3 2 8 Removing the Operation PCB Ass y 3 5 3 3 Disassembling the Mechanism Unit 3 6 3 3 1 Removing the Top Chassis SA 3 6 3 3 2 Removing the Platen SA 3 6 3 3 3 Removing the Center Frame SA 3 7 3 3 4 Removing the Gears 3 8 3 3 5 Rem...

Страница 3: ...1 3 DIP Switch 3 4 2 5 SELF TEST PRINT 5 1 6 TROUBLESHOOTING 6 1 6 1 Troubleshooting Procedure 6 1 6 2 Troubleshooting Guide 6 1 7 PERIODIC MAINTENANCE 7 1 7 1 Periodic Maintenance Procedure 7 1 Copyright 2001 by TOSHIBA TEC CORPORATION All Rights Reserved 570 Ohito Ohito cho Tagata gun Shizuoka ken JAPAN ...

Страница 4: ...pads 4 Place the TRST 56 printer on a level surface 1 2 Checks 1 Check for damage or scratches on the machine 2 Confirm that none of the accessories are missing NOTE Keep the original carton and pads for future transportation of the TRST 56 printer Fig 1 1 TEC Thermal Printer TRST 56 SERIES TOSHIBA TEC CORPORATION Owner s Manual TRST 56 Printer Pad Accessories Carton Pad ...

Страница 5: ...on Both attachment plug and appliance coupler are rated minimum 125V 10A For European countries Power Supply Cord HAR or domestic approved where the equipment is used Type H05VV F rated minimum 250V 10A Attachment Plug and Appliance Coupler Domestic approved where the equipment is used molded on type having grounding terminal rated minimum 250V 10A The appliance coupler is Female configuration For...

Страница 6: ...OS terminal OFF before connecting the TRST 56 printer 2 Plug the TRST 56 power cord into the AC outlet on the wall for power supply Do not obtain the AC power from the AC outlet of the POS terminal such as ST 5500 ST 5600 etc because the rush current at the TRST 56 power on may exceed the rating of the power switch of the POS terminal Failure to do this may shorten the life of the power switch of ...

Страница 7: ...al 2 2 4 Connect the interface cable to the POS terminal and then insert the power cord into the AC outlet NOTE The above figure shows the example of the interface cable which is connected to the LPT1 port Parallel interface on the ST 5600 LPT1 Interface Cable Fig 2 3 POS Terminal ...

Страница 8: ...r of the printer WARNING 1 The solenoid included in the drawer to be connected should have the minimum of 36 ohm resistance Under specified solenoid may cause a machine failure 2 The output current of the drawer should not exceed 0 8A as there is a risk of a machine failure 3 The drawer interface connector is exclusively for connecting a drawer Do not connect a phone line or any other cables than ...

Страница 9: ...ector 2 Remove the four ST 3x8 screws to detach the power case SA 3 Cut the cable band which ties the AC adapter cable 4 Lift the AC adapter to remove it from the power case SA 5 Take out the AC adapter cable from the power case SA 6 Pass the connector of the AC adapter cable through the hole in the bottom of the power case SA Power Case SA Cable Band ST 3x8 AC Adapter Cable Fig 2 5 AC Adapter Pow...

Страница 10: ...as it functions properly Particularly do not loosen any screws unless it is necessary 2 After the printer is disassembled and reassembled be sure to check that there is no abnormality before turning the power ON 3 During maintenance be careful not to leave the parts uninstalled or the screws un tightened inside the printer 4 When handling the thermal head or electronic components do not use gloves...

Страница 11: ...ews to detach the power case SA 3 2 2 Removing the Printer Cover SA 1 Press down the ejector to unhook the printer cover SA 2 Remove the two BT 3x8 screws which secure the printer cover SA 3 Push up tabs A to unhook the printer cover SA then unhook tabs B and remove the printer cover SA ST 3x8 Power Case SA AC Adapter Cable CAUTION Care must be taken not to touch the print head element when removi...

Страница 12: ...frame are fit into the square hole securely 2 When removing or reassembling the top cover SA be careful not to catch the power switch with the power switch access hole 3 2 4 Removing the Mechanism Unit 1 Remove the two ST 3x6 screws which secure the mechanism unit to the bottom chassis SA 2 Disconnect the five connectors A to E from the control PCB ass y 3 Lift the front side of the mechanism unit...

Страница 13: ...ol PCB ass y to separate from the IF PCB ass y could damage the power switch 3 2 6 Removing the AC Adapter 1 Cut the cable band to release the AC adapter cable 2 Lift the AC adapter to remove it from the power case SA 3 Take out the AC adapter cable from the power case SA 4 Pass the connector of the AC adapter cable through the hole in the bottom of the power case SA NOTE When reassembling the AC ...

Страница 14: ...e the operation panel SA from the front by pushing its back 2 Remove the front cover from the top cover SA 3 2 8 Removing the Operation PCB Ass y 1 Remove the BT 2 6x6 screw to separte the operation PCB ass y from the operation panel Fig 3 8 Top Cover SA Front Cover Operation Panel SA Fig 3 9 BT 2 6x6 Operation PCB Ass y Operation Panel ...

Страница 15: ...sembling apply lubricant Molykote EM 10L to the surface of the brake disk 3 3 2 Removing the Platen SA 1 While pressing the pressure arm in the direction of the arrow turn the platen bushing 90 degrees in either direction so that the flat ends of the left side platen bushing are set in vertical 2 When the pressure arm is released the left side platen SA is detached from the U shaped groove in the ...

Страница 16: ... so that their flat surfaces face inside 2 When inserting the platen gear align its hole with the D cut on the platen shaft 3 When reassembling apply lubricant Molykote EM 10L to the shaded portions in Fig 3 12 3 3 3 Removing the Center Frame SA 1 Remove the four BT 3x6 screws which secure the center frame SA 2 Lift the center frame SA to remove it from the main chassis NOTE When reassembling pass...

Страница 17: ...r PCB ass y hook its one end and then install it with the screw 3 3 4 Removing the Gears 1 Remove the two ST 3x6 screws to detach the gear holder 2 Remove the reduction gear and then idle gear from the gear holder NOTE Apply lubricant Molykote EM 10L to the shafts of the gear holder shaded portions when replacing the reduction gear idle gear or gear holder Slider DIP Switch Cover Guide Roller BT 2...

Страница 18: ... out the safety cover shaft from the cutter plate and the safety cover 4 Remove the safety cover from the cutter plate 3 3 6 Removing the Lock Levers 1 Remove the EXT spring 01 from the lock lever R SA 2 Pull out the ejector 3 Remove the lock lever R SA from the right end of the lock lever L SA 4 Remove the lock lever L SA by pulling it to the left Auto Cutter SA ST 3x6 Main Chassis Fig 3 16 Fig 3...

Страница 19: ...ling the pressure arms insert them into the screw heads firmly 3 3 8 Removing the Stepping Motor and Brake 1 Remove the two M 3x6 screws to detach the stepping motor 2 Remove the ST 3x6 screw to detach the brake NOTES 1 When reassembling the brake install it in the orientation as shown in the above figure 2 When reassembling the stepping motor install it so that the cable is positioned on the bott...

Страница 20: ... the print head Then disconnect the head cable ass y from the print head 5 Pass connectors A and B of the head able ass y through square holes A and B in the top chassis SA 6 Remove the BT 3x6 screw to detach the damper block 7 Remove the roller from the damper Fig 3 21 Damper Block ST 3x6 Head Cable Ass y Roller BT 2 6x6 Top Chassis SA Wire Cover Print Head Head Cover Cable Holder A B A B CAUTION...

Страница 21: ...ding surface of the brake disk Refer to Section 3 3 1 Removing the Top Chassis SA B Platen bushings and the platen shafts 2 locations each Refer to Section 3 3 2 Removing the Platen SA C Gear shafts of the gear holder 2 locations Refer to Section 3 3 4 Removing the Gear D Shafts of the lock lever R L 2 locations on both sides E Portions of the pressure arm R L which contact with other parts 3 loca...

Страница 22: ... 2 Reserved OFF 1 3 Paper width 58 mm 80 mm OFF 42 80 mm paper 48 80 mm paper 1 4 Printing columns 30 58 mm paper 36 58 mm paper OFF 1 5 CR mode LF Ignored OFF 1 6 Input buffer 72 bytes 4K bytes OFF 1 7 ON 1 8 Print tone Refer to the table below OFF NOTE The printing columns differ depending on the paper width DIP Switch 1 3 Print tone Print tone Level 1 Level 2 Level 3 Level 4 DIP Switch 1 7 OFF ...

Страница 23: ...860 Portuguese ON ON OFF OFF Code863 Canadian French OFF OFF ON OFF Code865 Nordic ON OFF ON OFF Code852 Slavic OFF ON ON OFF Code866 Russia ON ON ON OFF Code857 Turkey OFF OFF OFF ON Windows code ON OFF OFF ON Undefined Undefined Blank page ON ON ON ON NOTE The blank page is the area for users use The default for the blank page is blank space When selecting Katakana the character set becomes Japa...

Страница 24: ... again Self Test Print Sample TRST 56 MPVX XX LPVX XX Serial Interface Baud Rate 9600 bps Data Bit 8 bits Parity Odd Handshake DTR DSR Buffer Size 4K byte Dip Switches DS1 1 2 3 4 5 6 7 8 ON o o OFF o o o o o o DS2 1 2 3 4 5 6 7 8 9 10 ON OFF o o o o o o o o o o DS3 1 2 3 4 5 6 7 8 ON o OFF o o o o o o o 0123456789 ABCDEFGHIJKLMNO PQRSTUVWXYZ _ abcdefghijklmnopqrstuvwxyz Firmware Version Loader Ve...

Страница 25: ... column Following the above mentioned procedure allows an efficient troubleshooting with few misjudgement 6 2 Troubleshooting Guide Power Supply Failure Phenomenon Cause Check method Solution The AC adapter is not connected Connect the specified AC adapter No power is supplied Power lamp does not light The fuse has blown Check whether any unspecified AC adapter is used Use the specified AC adapter...

Страница 26: ...ly Or replace the head cable ass y Void print Faulty print head Replace the print head Faulty DC output voltage from the AC adapter Check whether the specified AC adapter is used Use the specified AC adapter Low DC output voltage from the AC adapter Check the DC voltage with a DC voltmeter Supply the specified AC voltage to the AC adapter Faulty print head Replace the print head Foreign object is ...

Страница 27: ...erly Foreign object in the gear Remove the gear holder and check for any foreign objects caught in the gears Remove the foreign objects Paper is not fed or fed irregularly Broken gear Remove the gear holder and check for any breakage of the gears If the gear is broken replace it with a new one Sensor Failure Phenomenon Cause Check method Solution Faulty paper sensor Check whether the ERROR lamp bl...

Страница 28: ...dapter Faulty auto cutter Measure the supply voltage with a DC voltmeter or an oscilloscope If the supply voltage ranges from 22 8 to 25 2VDC in Idle state replace the auto cutter The cutter does not function Paper feed failure Paper jam Check whether or not the paper is jammed or torn and caught in the paper path Remove the jammed paper from the paper path and set the paper properly If no paper c...

Страница 29: ...sing detergent for cleaning be sure to wipe it off with a moistened cloth Soft dry cloth or soft cloth slightly moistened with mild detergent 3 Cleaning the print head Clean the print head with a cotton swab slightly moistened with alcohol Cotton swab slightly moistened with alcohol 4 Cleaning the cutter and sensors Remove any dust and paper particles from the cutter and from the sensors with an a...

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