DesignJet 1050C/1055CMHP Large-Format Printers
Service Manual
For HP Internal U s e Onl y
©Copyright Hewlett-Packard
Compa n y 1999
This document contains
proprietary information that is
protected by copyright. All rights
are reserved. No part of this
document may be photocopied,
reproduced, or translated to
another language with out th e
prior written con sen t of He wle ttPackard Company.
First Edition, March 1999
Warranty
The information contained in this
document is subject to change
without notice.
Hewlett-Packard makes no
warrant y of any kind with
regard to this material,
including, but not limited to,
the implied warranties of
merchantabilit y and fitness f or
a particular purpose.
Hewlett- Packard shall not be
liable for errors contained herein
or for incidental or cons equential
damages in connection with the
furnishing, performance, or use
of this material.
WARNING
The procedu r es des cribed in this
manual are to be performed by
HP-qualified service per s onnel
only.
Electrical Shock Hazard
Serious shock hazard leading to
death or injury may result if you
do not take t he following
precautions:
- Ensure that th e ac pow er outlet
(mains) has a protective earth
(ground) terminal.
- Disconnect the Printer from the
power source prior to performing
any maintenance.
- Prevent water or any other
liquids from running onto
electrical components or ci rcuits,
or through openings in the
enclosure.
Electrostatic Discharge
Refer to the beginning of Chapter
8 of this manual, for precautions
you should take to prevent
damage to the Printer circuits
from electrost atic discharge.
WARNING
The Warning symbol calls
attention to a procedure, practice,
or the like, which, if not correctly
performed or adhered to, could
result in personal in jur y. Do not
proceed beyond a Warning
symbol until the in di cated
conditions are fully understood
and met.
CAUTION
The Caution symbol calls
attention to an oper atin g
procedure, practice, or the like,
which, if not correctly performed
or adhered to, could result in
damage to or destruction of part
or all of t h e pr o duct. Do not
proceed beyond a Caution
symbol until the in di cated
conditions are fully understood
and met.
Technical Marketing,
Barcelona Division,
Hewlett-Packard Espa nola, S.A.
Avda. Graells, 501
08190 Sant Cugat del Valles
Spain
Safety S ymbols
General definitions of safety
symbols are given immediatel y
after the tabl e of contents.
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DesignJet 1050C/1055CMHP Large-Format Printers
Service Manual
Using this Manual
Purpose
This Service Manual contains information necessary to test,
calibrate and service:
n
HP DesignJet 1050C Printer (Model C6074A)
n
HP DesignJet 1055CM Printer (Model C6075A)
For information about using these printers, refer to the
corresponding User and Quick Reference Guides.
Readership
The procedures described in this Service Manual are to be
performed by HP Certified service personnel only.
Part Numbers
Part Numbers for Printer options, accessories and service parts are
located in Chapter 7.
Conventions
A small arrow ⇒ is used to indicate other parts of the Service
Manual where you can find information related to the topic you are
consulting.
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HP DesignJets 1050C and 1055CM Printers Service Manual