Replacing the Stepping Motor | Toshiba B-570 specification

2. MAJOR UNIT REPLACEMENT

EM18-33010A

2.2 REPLACING THE STEPPING MOTOR

2.2 REPLACING THE STEPPING MOTOR

1)Remove the two black screws to detach the front plate, remove the two FL-4x6 screws to detach the belt cover.

Front Plate

Belt Cover

Black Screw

Screw (FL-4x6)

Fig. 2-6

2)Unclamp and disconnect the connector from CN14 on the CPU PC board.

3)Remove the two SM-4x8B screws, loosen the two belts from the pinion gear, and remove the stepping motor.

Partition

Platen Belt

Screw (SM-4x8B)

CPU PC Board

Clamp

CN14

Pinion Gear

Feed Roller Belt

PS Unit

Fig. 2-7

Stepping Motor

4)When replacing the stepping motor, place the platen belt first then the feed roller belt around the

pinion 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 disengagament.

5)Reassemble in the reverse order of removal.

2-4

Image 7

Toshiba B-570 manual Replacing the Stepping Motor

Contents

Series Table of Contents Checks Procedure Disconnect power cord before replacing important parts Major Unit Replacement Replacing the PS UNIT, I/F PC Board and CPU PC Board Cover and top cover An oscilloscope Turn the power off and mount the left side Replacing the Stepping Motor Replacing the TAKE-UP Motor Replacing the Ribbon Motors Replacing the Solenoid Head Up Link Solenoid Spring Pin Old type print head Replacing the Print Head Adjusting the print head position New type print head Replacing the Platen and Feed Roller Replacing the Platen and Feed Roller Replacing the Ribbon Back Tension Block Replacing the Paper Sensor Replacing the Pinch Roller Shaft ASS’Y Adjustment Correcting Skew Printing High Speed PC Interface Board B-4800-PC-QM Installation Procedure for the Optional Equipment Installation Procedure for the Optional Equipment Cutter Module B-4205-QM EM18-33010A SVO7A1003 Nov ’97 Mount the cutter cover with the two screws Adjusting the Cutter Guide PlatesRemoved Parts ’ty/Unit Front plate Expansion memory and drawing size Memory Module Fanfold Paper Guide Module B-4905-FF-QM Mechanism Description Cutter Drive Cutter Mode Harness Wiring Toshiba TEC Dirty print head Clean the print headFasten the head lever completely Refer to page 2-3 to adjust RAM Clear Mode Parameter Setting ModeTest Print Mode Sensor Setting Mode Outline of the DIAG. Test Operation DIAG. Test Operation Press the Pause key. See Note L I N EU S E I N T E N a N C E C O U N T E R Self Test ModeMaintenance Counter Printing B B O N Sample Print Print Condition ∙ Preset count ∙ Print speed Trans Parameters B B O N T R a N S M I S S I V E Automatic Diagnostic PrintingPress the Pause key On .2.3 Head Broken Element Check Kanji ROM Check Print Condition ∙ Preset count ∙ Print speedSample Print PROGRAM/MASK ROM Check Dram Check Eeprom CheckFlash Memory Card Check Sensor 1 Check With ribbon Ribbon end Print status content description of each sensor/switchLabel is removed Ribbon end sensor Non-transmissive DIP SW Check Connector FCN-781P024-G/PEXP. I/O Check E R M a L H E a D C H E C K R M a L E N D A D ErrorHead Broken Element Check Press the Pause key twice Press the Feed key twice Press the Pause key Parameter Setting Mode Parameter Setting Mode Table Press the Feed key Feed Length Fine AdjustmentE D a D J U S T Press the Pause key twice 2 Cut/Strip Position Fine AdjustmentT a D J U S T Press the Feed key Press the Pause key Back Feed Length Fine AdjustmentAt the same time On Section Axis fine adjustment Press the Pause key three times Cut Position Fine Adjustment Example Feed Length Fine Adjustment Example Label pitch When using a label with a length of less than 38 mmCase Condition Are received Strip Position Fine Adjustment Example Back Feed Length Fine Adjustment Example D J U S T Axis Fine AdjustmentPress the Pause key On Section Print tone fine adjustment Press the Pause key four times Axis Fine Adjustment Example Thermal transfer printing fine adjustment Print Tone Fine AdjustmentThermal direct printing fine adjustment At the same time On Section Font zero selection Character Code SelectionPress the Pause key seven times N T code R O F O N T Font Zero SelectionFeed key or Restart Code Control Code Selection Restart CodeM a N U a LN T R O L Press the Pause key Select either ribbon type with Ribbon Type SelectionPress the Pause key ten times ∙ Transmissive ribbon Press the Pause key eleven times Ribbon Motor Drive Voltage Fine Adjustment A T U S P E Strip Wait Status Setting Press the Pause key fourteen times Stacker SelectionA C K E R S Y S T E M O F F R E S H O L D R Threshold Manual Fine Adjustment for the Black Mark Sensor Press the Pause key sixteen times Threshold Manual Fine Adjustment for the Feed Gap SensorR E S H O L D T Case How To Calculate Theshold Fine Adjustment Value When using perforated labels transmissive sensor When using labels transmissive sensorWhen using labels with black marks reflective sensor Select either code with Kanji Code SelectionPress the Pause key 17 times N J I code Select the Euro font code with the Feed key or Euro Font Code SelectionPress the Pause key 18 times R O codeB O H Restart key at Transmission Control Mode SelectionDTR/DSR RTS/CTS Press the Pause key 20 times Reset Selection when the Input Prime Signal is onP U T P R I M EO N Pause key Test Print ModeNormal Test Print I N T C O N D I T I O N N S O R T R a N S M I S S I V E I N T S P E E D P E R F E E D B E L L E N G T HFeed key or Restart key From B of the preceding Test Print Sample Process Test Print ∙ Print Tone Fine Adjustment Value + Press the Pause key Bar code are printed on 5 labels From B of the next Thermistor Check Sensor Setting ModePress the Feed key three times Press the Feed key Press the Pause key twice Black Mark Sensor Adjustment Feed Gap Sensor Adjustment Feed key Former value is displayed Paper End Setting for Black Mark Sensor Indicates setting complete. Press the Pause key. See Note Paper End Setting for Feed Gap SensorPress the Pause key five times RAM Clear Mode Table RAM Clear Mode Type OFFB0H M P L E T E Maintenance Counter ClearR a M C L E a R I N T E C O U N T E R C L E a R R a M E T E R C L E a R Parameter Clear SW# SetupFloppy Disk IBM PC/AT DD-MM-YYYY Down Load Procedure ROM Error Code