Toshiba
B-EV4
manual
Electronic Specifications, Block Diagram
Troubleshooting
Specifications
Block Diagram
Maintenance
JP9 USB Type Type B Connector
Sensor Adjustment
Feature of the B-EV4D/EV4T
System Mode
Page 14
2. ELECTRONICS SPECIFICATIONS
EO18-33025
2.1 Block Diagram
2. ELECTRONIC SPECIFICATIONS
2.1 Block Diagram
2-1
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Image 14
Page 13
Page 15
Contents
EV4 Series
Table of Contents
Feature of the B-EV4D/EV4T
Front View
Rear View
Interior
EV4T
Indication of the Model Name
V 4 D G S 14 QM R
Basic Specifications
EV4D EV4T
TUV
External Media Holder B-EV904-PH-QM-R
Key and LED
Color Status
Supply Specifications
Media Type
Detection Area of the Transmissive Sensor
Detection Area of the Reflective Sensor
Ribbon
Figure below shows the effective print area on the media
Electronic Specifications
Block Diagram
Main PC Board Layout
U6 Sdram
Description of the Main PC Board
Sdram
DC/DC Converter U22 Type TS34063
JP2 SD Card Slot
JP7 Serial Interface
JP9 USB Type Type B Connector
JP20 Ribbon End Sensor
Print Head JP30
Replacing the Important Parts
Lubrication
Replacing the Top Cover
EV4T model
EV4D model
Hook Media View Window
Disconnect the connector from the feed button PC board
Replacing the Lower Cover
Replacing the Main PC Board
Replacing the Important Parts
Replacing the Platen Ass’y
Replacing the Print Head Ass’y
Remove the two screws which secure the print head ass’y
Connector Print Head Ass’y
Bracket Print Head Block Latch Top Inner Cover
Remove the two pins which secure the print head ass’y
Plate
Replacing the Stepping Motor
Lubrication
Replacing the Gear Cover
Replacing the Important Parts
Replacing the Feed Button PC Board
Replacing the Cover Open Sensor
Replacing the Ribbon Sensor B-SV4T model only
Replacing the Black Mark Sensor
Remove the black mark sensor
Replacing the Important Parts
Replacing the Feed Gap Sensor Lower
Replacing the Important Parts
Replacing the Feed Gap Sensor Upper
Remove the feed gap sensor upper
Replacing the Important Parts
Troubleshooting
LED Status
Print Quality
Ribbon run out Loading the ribbon
Maintenance
Maintenance
System Mode
Abort of Label Format Auto Call
Sensor Adjustment
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