Trademarks
Astra 1220U is a registered trademark of UMAX Data Systems, Inc.
Copyright
Copyright 1998 UMAX Data Systems, Inc. All Rights Reserved. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,
manual, or otherwise, without the prior written permission of UMAX Data Systems, Inc.
Observe the Following Safety Precautions:
1. Make sure that the scanner is turned off and disconnected from both the power source and computer
before working on it.
2. Anyone who performs any maintenance on the scanner must be familiar with the basic safety
precautions required when working on electronic devices.
3. Observe any and all procedural steps described in this service manual, in the order that they are
presented, especially those which involve applying power to the scanner or its components. If and
when the scanner must be connected to a power source, while maintenance or testing is performed, use
extreme caution when working on scanner electronic components.
4. Only replacement parts approved by UMAX should be used in repairing the scanner to ensure safe and
reliable scanner performance and to avoid losing warranty protection.
5. Take all precautions against static electricity damaging electronic components.
6. Check to make sure that the power source has the same voltage rating as that required for operating the
scanner.
7. Whenever it is necessary to remove or replace electronic components, always check to make sure the
scanner is disconnected from its power source.
About This Manual
This manual is designed for trained service personnel. All service operations mentioned in this manual are
to be carried out by UMAX certified repair technicians only.
This manual contains basic after sales service information that is vital to the maintenance of a high quality
and reliable scanner. For specific scanner operating procedures, please refer to the operation manual.
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