Toshiba B-570 manual

2. MAJOR UNIT REPLACEMENT

EM18-33010A (Revision Date Oct. 14, ’94)

2.1 REPLACING THE PS UNIT, I/F PC BOARD AND CPU PC BOARD

2.1 REPLACING THE PS UNIT, I/F PC BOARD AND CPU PC BOARD

CAUTION:

Replace only with same type and ratings of fuse for continued protection against risk of fire.

1)Remove the three FL-4x6 screws and disconnect the two connectors to detach the PS unit.

2)Remove the FL-3x5 screw and the four locking supports to remove the I/F PC board.

I/F PC Board

Locking Support

Screw (FL-3x5)

Screw (FL-4x6)

Connector

PS Unit	Fig. 2-2
	Screw (FL-4x6)

3)Disconnect the 13 connectors from the CPU PC board.

4)Remove the six screws (SM-3x6B, SM-3x6C) to detach the CPU PC board from the printer.

Screw (SM-3x6B)	Screw (SM-3x6B)
Connector

Screw (SM-3x6C)

Connector

I/F Connector

CPU PC Board

Connector

Screw (SM-3x6B)

Connector

Connector	Screw (SM-3x6B)	Fig. 2-3
	Screw (SM-3x6B)	Fig. 2-3
	Connector

5)Replace the PS unit, I/F PC board and CPU PC board. Insert the connectors correctly and install in the reverse order of removal above. Do not mount the left side cover and top cover.

2-2

Image 5

Toshiba B-570 manual Replacing the PS UNIT, I/F PC Board and CPU PC Board

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 Removed Parts ’ty/Unit Front plate Adjusting the Cutter Guide PlatesMount the cutter cover with the two screws Expansion memory and drawing size Memory Module Fanfold Paper Guide Module B-4905-FF-QM Mechanism Description Cutter Drive Cutter Mode Harness Wiring Fasten the head lever completely Dirty print head Clean the print headToshiba TEC Refer to page 2-3 to adjust Test Print Mode Parameter Setting ModeSensor Setting Mode RAM Clear Mode Outline of the DIAG. Test Operation DIAG. Test Operation U S E L I N EPress the Pause key. See Note Maintenance Counter Printing Self Test ModeB B O N I N T E N a N C E C O U N T E R Sample Print Print Condition ∙ Preset count ∙ Print speed Trans Parameters Press the Pause key On .2.3 Head Broken Element Check Automatic Diagnostic PrintingB B O N T R a N S M I S S I V E Sample Print Print Condition ∙ Preset count ∙ Print speedPROGRAM/MASK ROM Check Kanji ROM Check Flash Memory Card Check Eeprom CheckDram Check Sensor 1 Check Label is removed Ribbon end sensor Print status content description of each sensor/switchNon-transmissive With ribbon Ribbon end EXP. I/O Check Connector FCN-781P024-G/PDIP SW Check Head Broken Element Check R M a L E N D A D ErrorPress the Pause key twice Press the Feed key twice E R M a L H E a D C H E C K Press the Pause key Parameter Setting Mode Parameter Setting Mode Table E D a D J U S T Feed Length Fine AdjustmentPress the Feed key T a D J U S T 2 Cut/Strip Position Fine AdjustmentPress the Pause key twice At the same time On Section Axis fine adjustment Back Feed Length Fine AdjustmentPress the Pause key three times Press the Feed key Press the Pause key Cut Position Fine Adjustment Example Feed Length Fine Adjustment Example Case Condition When using a label with a length of less than 38 mmAre received Label pitch Strip Position Fine Adjustment Example Back Feed Length Fine Adjustment Example Press the Pause key On Section Print tone fine adjustment Axis Fine AdjustmentPress the Pause key four times D J U S T Axis Fine Adjustment Example Thermal direct printing fine adjustment Print Tone Fine AdjustmentThermal transfer printing fine adjustment Press the Pause key seven times Character Code SelectionN T code At the same time On Section Font zero selection Feed key or Restart Font Zero SelectionR O F O N T Code Control Code Selection N T R O L CodeM a N U a LPress the Pause key Restart Press the Pause key ten times Ribbon Type Selection∙ Transmissive ribbon Select either ribbon type with Press the Pause key eleven times Ribbon Motor Drive Voltage Fine Adjustment A T U S P E Strip Wait Status Setting A C K E R S Y S T E M O F F Stacker SelectionPress the Pause key fourteen times R E S H O L D R Threshold Manual Fine Adjustment for the Black Mark Sensor R E S H O L D T Threshold Manual Fine Adjustment for the Feed Gap SensorPress the Pause key sixteen times Case How To Calculate Theshold Fine Adjustment Value When using labels with black marks reflective sensor When using labels transmissive sensorWhen using perforated labels transmissive sensor Press the Pause key 17 times Kanji Code SelectionN J I code Select either code with Press the Pause key 18 times Euro Font Code SelectionR O codeB O H Select the Euro font code with the Feed key or DTR/DSR Transmission Control Mode SelectionRTS/CTS Restart key at P U T P R I M EO N Reset Selection when the Input Prime Signal is onPress the Pause key 20 times Normal Test Print Test Print ModeI N T C O N D I T I O N Pause key N S O R T R a N S M I S S I V E I N T S P E E D Feed key or Restart key B E L L E N G T HP E R F E E D 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 Press the Feed key three times Sensor Setting ModeThermistor Check 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 Press the Pause key five times Paper End Setting for Feed Gap SensorIndicates setting complete. Press the Pause key. See Note RAM Clear Mode Table RAM Clear Mode B0H OFFType R a M C L E a R Maintenance Counter ClearI N T E C O U N T E R C L E a R M P L E T E R a M E T E R C L E a R Parameter Clear Floppy Disk SetupIBM PC/AT SW# DD-MM-YYYY Down Load Procedure ROM Error Code