Toshiba B-EP4DL User Manual 2

TOSHIBA Potable Printer

B-EP4DL SERIES

Maintenance Manual

Document No. EO18-33023

Original Sep., 2008
(Revised )

PRINTED IN JAPAN

WARNING!

Follow all manual instructions. Failure to do so could create safety hazards such as fire or
electrocution.

NOTE:

Failure to follow manual instructions or any unauthorized modification, substitution orchange to

this product will void the limited product warranty.

(Revision Date: Dec. 16, 2008)

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EO18-33023

TABLE OF CONTENTS

Page

1. UNPACKING .............................................................................................................. 1- 1

1.1 Procedure ........................................................................................................................1- 1

1.2 Checks.............................................................................................................................1- 1

2. MAJOR UNIT REPLACEMENT.................................................................................. 2- 1

2.1 Replacing the CPU PC Board .........................................................................................2- 1

2.2 Replacing the LCD Unit ................................................................................................... 2- 8

2.3 Replacing the Peel-off Roller...........................................................................................2- 9

2.4 Replacing the Peel-off Sensor.......................................................................................2- 10

2.5 Replacing the Drive PC Board....................................................................................... 2- 12

2.6 Replacing the Battery Terminal .....................................................................................2- 13

2.7 Replacing the Stepping Motor .......................................................................................2- 14

2.8 Replacing the Print Head............................................................................................... 2- 15

2.9 Replacing the Cover Open Switch and Media Sensor (Lower) .....................................2- 17

2.10 Replacing the Media Sensor (Upper) ............................................................................2- 19

2.11 Replacing the Platen Ass’y............................................................................................2- 21

3. TROUBLESHOOTING................................................................................................ 3- 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

ll Rights Reserved

570 Ohito, Izunokuni-shi, Shizuoka-ken, JAPAN

1. UNPACKING EO18-33023

1.1 Procedure

1. UNPACKING

1.1 Procedure

1) Open the carton.

2) Unpack the accessories from the carton.

3) Unpack the printer.

NOTE: Keep the carton and pad for future transportation of the printer.

1.2 Checks

1) Check for damage or scratches on the machine.

2) Confirm that none of the accessories are missing.

1- 1

2. MAJOR UNIT REPLACEMENT EO18-33023

2.1 Replacing the CPU PC Board

2. MAJOR UNIT REPLACEMENT

WARNING!

1. Disconnect the power cord before installing the main parts.

2. Be careful not to injure your fingers when replacing the main parts.

CAUTION!

1. Since a lot of small moulded parts are used in this printer, care must be taken not to damage or lose
them.

2. Be careful not to damage the print head while removing and reassembling.

3. In the United States, used lithium ion batteries should be returned to the store where you bought the
machine. (USA only)

4. LITHIUM ION BATTERYDISPOSE OF PROPERLY

Caution: Do not handle damaged or leaking lithium ion battery.

5. Before handling the main parts, be sure to discharge static electricity in human body through other
metals. Failure to do this may damage the CPU PC board, print head, etc..

NOTES:

1. Before replacing the main parts, print out the maintenance counter values and the parameter values and keep
the printout. (Refer to Section 4.2 Diagnostics Test in the System Mode Manual.)
After replacing, restore the setting according to the printout.

2. Use precision screwdrivers for replacing the precision components which are installed into the printer.

2.1 Replacing the CPU PC Board

1) Turn off the printer.

2) Slide the Battery Lever in the direction of the arrow, and remove the Battery Pack from the printer.

3) Remove the four Tapping Screws from the Bottom Cover.

Battery Pack

Battery Lever

T-3x10 Screw

T-3x10 Screw

2-1

2. MAJOR UNIT REPLACEMENT EO18-33023

l

r

r

2.1 Replacing the CPU PC Board

4) Press the Top Cover Open Button to open the Top Cover.

5) Remove the Left Side Cover in the direction of the arrow.

Top Cover Open Button

Top Cover

Left Side Cover

NOTE: The Gears shown in the picture below are not secured and are easily removed. Be carefu

not to drop and break or lose them.

Gea

6) Remove the Right Side Cover and the Front Cover in the direction of the arrow, respectively.

Right Side Cover

Front Cove

2-2

2. MAJOR UNIT REPLACEMENT EO18-33023

2.1 Replacing the CPU PC Board

7) Remove the Front Cover.

CPU PC Board

Front Cover

6) Disconnect all Connectors and FPC Cable from the CPU PC Board.

NOTE: Before disconnecting the FPC Cable, release the Connector Lock.

FPC Cable

CPU PC Board

Connector Lock

7) Disconnect the Earth Terminal from the Drive PC Board.

Drive PC Board

Earth Terminal

2-3

2. MAJOR UNIT REPLACEMENT EO18-33023

2.1 Replacing the CPU PC Board

8) Open the Hooks, then remove the CPU PC Board from the Front Cover.

CPU PC Board

Hook

Hook

9) Remove the screw, then remove the Earth Terminal.

T-2x5 Screw

Earth Terminal

10) Replace the CPU PC Board with a new one, then reassemble in the reverse order of removal.

2-4

2. MAJOR UNIT REPLACEMENT EO18-33023

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2.1 Replacing the CPU PC Board

11) Close the front cover.

Front Cover

NOTES:

1. Make sure that the pins on the both sides of the front cover are fit in position, as shown in the
pictures below.

Pin

2. Do not reassemble the Front Cover while the Top Cover Open Button is pressed. Doing so may
cause the Top Cover not to open.

Good

No Good

Top Cover Open Button

12) Mount the left side cover to the printer while fitting the tabs on the left side cover into the slots of the printer

enclosure.

Fit the tabs A to D into the slots A’ to D’.

Tab

Tab B

Tab C

Tab D

D’

C’

B’

’

2-5