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EO18-33025
(Revision Date: Mar. 27, 2009)
TABLE OF CONTENTS
Page
1. OUTLINE------------------------------------------------------------------------------------------------------------- 1- 1
1.1 Features of the B-EV4D/EV4T-------------------------------------------------------------------------- 1- 1
1.1.1 Front View ------------------------------------------------------------------------------------------ 1- 1
1.1.2 Rear View ------------------------------------------------------------------------------------------ 1- 1
1.1.3 Interior View---------------------------------------------------------------------------------------- 1- 2
1.2 Indications of the Model Name ------------------------------------------------------------------------- 1- 4
1.3 Basic Specifications --------------------------------------------------------------------------------------- 1- 5
1.4 Key and LED ------------------------------------------------------------------------------------------------1- 8
1.5 Supply Specifications ------------------------------------------------------------------------------------- 1- 9
1.5.1 Media Type----------------------------------------------------------------------------------------- 1- 9
1.5.2 Detection Area of the Transmissive Sensor ---------------------------------------------- 1-10
1.5.3 Detection Area of the Reflective Sensor--------------------------------------------------- 1-10
1.5.4 Ribbon---------------------------------------------------------------------------------------------- 1-11
2. ELECTRONIC SPECIFICATIONS ----------------------------------------------------------------------------2- 1
2.1 Block Diagram ---------------------------------------------------------------------------------------------- 2- 1
2.2 Main PC Board Layout------------------------------------------------------------------------------------ 2- 2
2.3 Description of the MAIN PC Board -------------------------------------------------------------------- 2- 3
3. REPLACING THE IMPORTANT PARTS ------------------------------------------------------------------- 3- 1
3.1 Replacing the Top Cover--------------------------------------------------------------------------------- 3- 2
3.1.1 B-EV4T model------------------------------------------------------------------------------------- 3- 2
3.1.2 B-EV4D model ------------------------------------------------------------------------------------ 3 -3
3.2 Replacing the Lower Cover------------------------------------------------------------------------------ 3- 6
3.3 Replacing the Main PC Board -------------------------------------------------------------------------- 3- 7
3.4 Replacing the Platen Ass’y ------------------------------------------------------------------------------ 3- 9
3.5 Replacing the Print Head Ass’y------------------------------------------------------------------------ 3-10
3.5.1 B-EV4T model------------------------------------------------------------------------------------ 3-10
3.5.2 B-EV4D model ----------------------------------------------------------------------------------- 3-12
3.6 Replacing the Stepping Motor ------------------------------------------------------------------------- 3-15
3.7 Replacing the Gear Cover ------------------------------------------------------------------------------ 3-17
3.8 Replacing the Feed Button PC Board---------------------------------------------------------------- 3-19
3.9 Replacing the Cover Open Sensor ------------------------------------------------------------------- 3-20
3.10 Replacing the Ribbon Sensor -------------------------------------------------------------------------- 3-21
3.11 Replacing the Black Mark Sensor--------------------------------------------------------------------- 3-22
3.12 Replacing the Feed Gap Sensor (Lower) ----------------------------------------------------------- 3-24
3.13 Replacing the Feed Gap Sensor (Upper) ----------------------------------------------------------- 3-26
4. TROUBLESHOOTING -------------------------------------------------------------------------------------------4- 1
4.1 LED Status--------------------------------------------------------------------------------------------------- 4- 1
4.2 Print Quality-------------------------------------------------------------------------------------------------- 4- 2
5. MAINTENANCE---------------------------------------------------------------------------------------------------- 5- 1
6. FIRMWARE DOWNLOAD MODE-----------------------------------------------------------------------------6- 1
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.
Copyright © 2008
by TOSHIBA TEC CORPORATION
A
ll Rights Reserved
570 Ohito, Izunokuni-shi, Shizuoka-ken, JAPAN