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Service Manual

HP DesignJet 230, HP DesignJet 250C, HP DesignJet 330 and HP DesignJet 350C Plotters

For HP Internal Use Only E Copyright Hewlett Packard Company 1996 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 into another language without the prior written consent of Hewlett Packard Company. HP internal order number C4699 90000 Second edition, March 1996 Printed in U.S.A.

Warranty The information contained in this document is subject to change without notice. Hewlett Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

WARNING The procedures described in this manual are to be performed by HP qualified service personnel only. Electrical Shock Hazard Serious shock hazard leading to death or injury may result if you do not take the following precautions: D Ensure that the ac power outlet (mains) has a protective earth (ground) terminal. D Disconnect the plotter from the power source prior to performing any maintenance. D Prevent water or other liquids from running onto electrical components or circuits, or through openings in the enclosure. Electrostatic Discharge Refer to the beginning of Chapter 6 of this manual, for precautions you should take to prevent damage to the plotter circuits from electrostatic discharge. Safety Symbols General definitions of safety symbols are given immediately after the table of contents.

Learning Products, Barcelona Division Hewlett Packard Española, S.A. Avda. Graells, 501 08190 Sant Cugat del Vallès Spain

Service Manual

HP DesignJet 230, HP DesignJet 250C, HP DesignJet 330 and HP DesignJet 350C Plotters

Using this Manual
Purpose
This manual contains information necessary to test, calibrate and service: D D D D HP DesignJet 230 plotters (models C4694A and C4695A) HP DesignJet 250C plotters (models C3190A and C3191A) HP DesignJet 330 plotters (models C4701A and C4702A) HP DesignJet 350C plotters (models C4699A and C4700A)

For information about using these plotters, refer to the corresponding user and quick reference guides.

Readership
The procedures described in this manual are to be performed by HP certified service personnel only.

Training
The HP ongoing training course CEV2 TIJ provides training for HP Customer Engineers and Authorized Dealers, on servicing the complete HP DesignJet series of large format, thermal inkjet plotters.

Part Numbers
Part numbers for plotter options, accessories and service parts are located in chapter 10.

Conventions
This manual contains information for the monochrome HP DesignJet 230 and 330 plotters and the color HP DesignJet 250C and 350C plotters. To highlight the differences between the various plotters the following symbols will be used in the left margin:
230 250C 330 350C

This symbol indicates the information specific only to the HP DesignJet 230 and 250C. This symbol indicates the information specific only to the HP DesignJet 330 and 350C. All other information not marked by these symbols is applicable to all plotters. The term D/A1 size plotters refers generically to models C3190A, C4694A, C4699A and C4701A. The term E/A0 size plotters refers generically to models C3191A, C4695A, C4700A and C4702A. A small arrow ' is used to indicate other parts of the Service Manual or User's Guide where you can find information related to the topic you are consulting. The w symbol is used to indicate the name of a referenced paragraph. ii Using this Manual C4699 90000

Contents

Using this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x 1 Product Information 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 4

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Graphic Languages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Device Control Languages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Network Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Roll feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Upgrading a DesignJet 330 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Site Planning and Requirements

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Choosing an Interface Cable (more ' User's Guide) . . . . . . . . . . . . . . . . . . . . . . . . . . . Choosing a Suitable Plotter Environment (more ' User's Guide) . . . . . . . . . . . . . . . Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plotter Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 2 2 2 2

2 2 3 3 3

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3

Installation and Configuration 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 4 4 5 8 12 12 12 12 13 13 14 14 14 14 14 15 16

Unpacking and Assembling the Plotter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspecting the Plotter for Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repacking the Plotter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assembling the Legs (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assembling the Roll Feed Assembly (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing the Plotter (more ' User's Guide) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the Plotter (more ' Quick Reference Guide) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DesignJet 230 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DesignJet 250C Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DesignJet 330 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DesignJet 350C Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Third Party Inks and Off Axis Ink Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . Configuring the Plotter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Verifying Plotter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power On Self Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Demonstration Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Example of Setup Sheet (DesignJet 250C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Example of Setup Sheet (DesignJet 350C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Preventive Maintenance

Moisture on Plotter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Level of Plotter Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Friction on Slider Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Noisy Carriage Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ink Spilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Belt Swelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning the Roll feed Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning the Plotter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning the Drive Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 4 4 4 4 4 4 4 4 4

2 2 2 2 3 3 3 4 4 4

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Contents

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Functional Overview (more ' HP DesignJet 200/220 Service Manual) 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 2 2 4 5 5 5 5 6 6 6 6 6 6 6 6 7 7 7 7 7 8 8 11 11 11 11 12 13 13 13 14 14 14 14 14 14 15 15 15 15 15 16 16

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loading Sheet Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loading Roll Media on the DesignJet 330 and 350C . . . . . . . . . . . . . . . . . . . . . . . Roll Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing Static Charge from the Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gripping the Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pinch Arm Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Providing a Force on Top of the Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bail Lift Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Moving the Carriage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage Drive Mechanics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Motor, Belt and Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage Guidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positional Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Detecting the Lines and Media Edges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Line Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Providing Ink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Print Cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Distance between Carriage and Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Producing an Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Print Mode Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Servicing the Cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spittoon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Primer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plotter Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main PCA Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EEROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input/Output Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bi Tronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS 232 C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water Condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plot Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Raster Image Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage PCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Panel PCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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6 Removal and Replacement Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ESD Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repair Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing a RAM or ROM SIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Bail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Cartridge Caps and Wiper Blades . . . . . . . . . . . . . . . . . . . . . . . Removing the Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Roll feed Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Left End Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Right End Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disconnecting the Front Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Media Sensor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing the Media Sensor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Encoder Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reinstalling the Encoder Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Right Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Carriage Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Spittoon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Spittoon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Pinch Arm Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Drive Roller Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Media Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Pinch Arm Lever Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Primer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Service Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Bail Lift Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Engaging Lever Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Overdrive Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Back Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Trailing Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repositioning the Trailing Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Trailing Cable Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Cartridge Carriage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Drive Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Drive Belt Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Drive Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reinstalling the Drive Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Pinch Arm Lift Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reinstalling the Pinch Arm Lift Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Overdrive Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reinstalling the Overdrive Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Entry Platen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reinstalling the Entry Platen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vi Contents

6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6

2 2 2 3 4 4 5 6 7 8 9 10 12 13 15 16 17 19 21 21 23 24 25 25 26 27 27 28 29 31 32 33 34 35 36 37 39 40 41 42 44 45 46 47 48 49

C4699 90000

7

Calibrations and Adjustments 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 2 2 2 3 3 4 4 5 5 5 6 6 7 7 8 11

When to Calibrate the Plotter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Black Cartridge Alignment (See ' User's Guide, chapter 1) . . . . . . . . . . . . . . . . . . . . . . Color Cartridge Test (See ' User's Guide, chapter 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entering Service Mode 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entering Service Mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stopping a Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Panel Keys in Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressing Two Keys Together . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Software Diagnostics and Hardware Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Mode 1 (DesignJet 230) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Mode 2 (DesignJet 250C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Mode 1 (DesignJet 330) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Mode 2 (DesignJet 350C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accuracy Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjusting the Carriage to Media Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Troubleshooting

Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self Test and Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What You Should See and Hear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Error Codes for the DesignJet 230 and 250C Plotters . . . . . . . . . . . . . . . . . . . . . . No LEDs On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEDs On (Error Off) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEDs Flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Error LED On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Error Codes for the DesignJet 330 and 350C Plotters . . . . . . . . . . . . . . . . . . . . . . No LEDs On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEDs On (Error Off) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEDs On or Flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEDs Flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Error LED On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Errors for the DesignJet 230 and 250C Plotters . . . . . . . . . . . . . . . . . . . . System Errors for the DesignJet 330 and 350C Plotters . . . . . . . . . . . . . . . . . . . . EEROM Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EEROM Model ID Configuration Procedure for the DesignJet 330 and 350C . . . . . Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Which Service Test to Perform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Viewing Test Output on an HP Palmtop PC . . . . . . . . . . . . . . . . . . . . . . . . . . . Bail Cycle Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bench Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage Axis Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C4699 90000

8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8

2 2 3 5 6 6 6 7 9 13 13 13 13 14 15 19 23 27 28 30 35 35 36 37 38 38

Contents vii

Carriage Test for the DesignJet 230 and 250C . . . . . . . . . . . . . . . . . . . . . . . . . Carriage Test for the DesignJet 330 and 350C . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Panel Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input/Output Test for the DesignJet 230/250C Only . . . . . . . . . . . . . . . . . . . . Media Axis Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modular Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Print Quality Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sensors Test for the DesignJet 230 and 250C . . . . . . . . . . . . . . . . . . . . . . . . . . Sensors Test for the DesignJet 330 and 350C . . . . . . . . . . . . . . . . . . . . . . . . . . Service Configuration Plot for the DesignJet 230 and 250C . . . . . . . . . . . . . Service Configuration Plot for the DesignJet 330 and 350C . . . . . . . . . . . . . Printing the Service Configuration Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Monitor (Data Display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Servo/Encoder Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clearing the EEROM for the DesignJet 230 and 250C . . . . . . . . . . . . . . . . . . . . . Clearing the EEROM for the DesignJet 330 and 350C . . . . . . . . . . . . . . . . . . . . . Print Quality Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Print Quality Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Banding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Uneven Fill Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lightfastness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vertical Line Straightness (VLS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ink Smearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hue Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starwheel Marks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Misaligned Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bleeding, Blooming and Wicking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8

39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 56 57 58 58 58 59 60 60 60 61 61

viii

Contents

C4699 90000

9

Product History and Service Notes 9 9 9 9 9 9 9 2 2 3 4 4 4 5

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Serial Number Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Firmware Revision Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Obtaining Service Notes with Graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . From a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . From a UNIX Workstation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Problem Reading the Setup Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Parts and Diagrams Exchange Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Part Lists and Exploded View Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Top and Back Covers, Electronics, Trailing Cable . . . . . . . . . . . . . . . . . . . . . . End Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage Axis (Left End) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage Axis (Right End) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Station, Primer, Spittoon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Media Entry Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bail and Overdrive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pinch Arm Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Roll Feed Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interface Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Support Services

10 10 10 10 10 10 10 10 10 10 10 10 10 10 10

2 3 4 4 6 8 10 12 14 16 18 22 24 26 29

Hewlett Packard support services in the United States . . . . . . . . . . . . . . . . . . . . 11 2 Hewlett Packard support services in Europe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Hewlett Packard support services in Asia Pacific . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8

C4699 90000

Contents ix

General Definition of Safety Symbols
International caution symbol (refer to manual): the product is marked with this symbol when it is necessary for the user to refer to the instruction manual in order to protect themselves and the instrument against damage. Indicates dangerous voltage (terminals fed from the interior by voltage exceeding 1000 volts must also be marked).
OR

Protective conductor terminal. For protection against electrical shock in case of a fault. Used with field wiring terminals to indicate the terminal that must be connected to ground before operating equipment. Low-noise or noiseless, clean ground (earth) terminal. Used for a signal common, as well as providing protection against electrical shock in case of a fault. A terminal marked with this symbol must be connected to ground in the manner described in the installation (operating) manual, and before operating the equipment.

OR

Frame or chassis terminal. A connection to the frame (chassis) of the equipment, which normally includes all exposed metal. Alternating current Direct current Alternating or direct current

WARNING

The WARNING sign denotes a hazard. It calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury.

Take care not to cut yourself on the encoder strip inside the plotter. The CAUTION sign denotes a hazard. It calls attention to an operating 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 the product.

CAUTION

x

Safety

C4699 90000

1

Product Information

11

Description
Applications
HP DesignJet 230 and 330 (monochrome) and HP DesignJet 250C and 350C (color) plotters are large format, ink jet plotters that print output from software applications, on paper and other media. The plotters produce large format plots of high resolution and quality for the following sectors: D D D D D Computer aided design (CAD) Computer aided manufacturing (CAM) Mapping Mechanical and architectural drawing General drafting

Drivers
Software drivers for the following applications are supplied with the plotters: D AutoCAD for DOS D AutoCAD for Windows D MicroSoft Windows Applications (Other application software ' User's Guide, chapter 1.)

Graphic Languages
The plotters accept drawing data in the following graphic languages: D Hewlett Packard Graphics Language (HP GL), a vector language D HP GL/2, an enhanced version of HP GL D Hewlett Packard Raster Transfer Language (HP RTL), a raster language When receiving HP GL/2 data, the plotters can recognize and output the Kana 8, Kanji, and Roman character sets.

Device Control Languages
The plotters support the following languages, enabling the user to read certain plotter settings from the computer: D Printer Job Language (PJL) D Printer Management Language (PML)

12

Product Information

C4699 90000

Interfaces
The plotters operate with a variety of computer systems through either the serial, RS 232 C port or the parallel, Bi Tronics, extended capability port (ECP). An autoswitching feature enables the plotter to detect from which interface it is receiving data, so you can send data through either interface without having to change the plotter settings. (More on interfaces ' chapter 5, w Input/Output Interfaces.)

Network Connections
You can connect the plotters to a network through an optional HP JetDirect EX or HP JetDirect EX Plus3 external print server. The range of network operating systems that are supported are as follows:
Local Area Network Ethernet Network Operating System Novell Netware LAN Manager TCP/IP TCP/IP EtherTalk Token Ring Novell Netware LAN Manager TCP/IP Computer Operating System DOS, Windows DOS, Windows HP-UX, Sun OS, Solaris IBM AIX Macintosh, Apple Products DOS, Windows DOS, Windows HP-UX, Sun OS, Solaris, IBM AIX

The print server includes a network autoswitching feature and can detect from which network it is receiving data. This enables you to send data through different networks without having to change the interface settings.

Memory
The plotters have a standard 4 megabytes of on board random access memory (RAM). They also have one RAM expansion socket, which can hold an optional 4 , 8 , 16 or 32 megabyte, single in line memory module (SIMM). The maximum RAM is 36 MB.

Accuracy
The accuracy of the plotters in drawing a vector is"0.38 mm (0.015 in) or "0.2% of the specified vector length, whichever is greater, at 23 _C (73 _F) at 50 60% relative humidity, on HP Inkjet 0.012 cm (0.0048 inch) polyester film.

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Resolution
The resolution of the plotter output is measured in dots per inch (dpi). The plotter resolutions for different plot quality settings are as follows (see also ' chapter 5):
Print Quality Fast Normal Best
230 250C

Monochrome Plotting 300 x 300 dpi Addressable 600 x 600 dpi Addressable 600 x 600 dpi

Color Plotting 300 x 300 dpi 300 x 300 dpi 300 x 300 dpi

Legs
The plotter legs are optional. The E/A0 size legs include a media diverter to prevent large media sizes from hitting the ground. The D/A1 size legs have no media diverter.

330 350C

Roll feed and Legs
The roll feed assembly and legs are optional. The E/A0 size legs include a media diverter to prevent large media sizes from hitting the ground. The D/A1 size legs have no media diverter. For additional information on the roll feed assembly ' chapter 5.

330 350C

Upgrading a DesignJet 330
Users can order an upgrade kit to upgrade a DesignJet 330 to a Designjet 350C. The kit can be installed by the user. For additional information ' User's Guide, chapter 6.

Media Types (See also ' HP Media Reference Guide)
Monochrome Plotting Plain paper and plotter paper Plain vellum (HP preferred) Plain translucent paper (HP preferred) HP single-matte polyester film
330 350C

Color Plotting HP special inkjet paper or equivalent non-HP media

For additional media types available ' User's Guide, chapter 2, w Choosing media.

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210 ­ 1625 mm 8.3 ­ 64 in

The DesignJet 230 and 250C plotters handle only sheet media, not roll media. The DesignJet 330 and 350C plotters handle sheet media and roll media. Sheet media must not exceed the maxima and minima shown here:

210 ­ 1625 mm 8.3 ­ 64 in

230 250C

Media Sizes
D/A1-size plotters E/A0-size plotters

330 350C

210 ­ 625 mm 8.3 ­ 24.6 in

210 ­ 917 mm 8.3 ­ 36.1 in

17 mm

The media margins define the real available plotting area on the media:
5 mm 17 mm = 0.67 in 5 mm = 0.2 in All measurements +/­ 2mm (0.08 in)

5 mm portrait 5 mm

17 mm

Media Margins

landscape

5 mm

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Product Information 1 5

17 mm

Notes

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2

Site Planning and Requirements

21

Power Requirements
HP DesignJet 230 and 330 and HP DesignJet 250C and 350C plotters have self adjusting power supplies and do not require a voltage selector or switch settings prior to use. The table below lists the power requirements for the plotters. Power Requirements
Source Voltage Requirements: Voltage 100 V ac 120 V ac 220 V ac 240 V ac Normal Operating Range: Frequency: Consumption: 90 to 264 V ac 47-63 Hz 140 watts maximum Max current (rms) 1.40 A 1.17 A 0.64 A 0.60 A

WARNING

The ac power outlet (mains) must have a protective earth (ground) terminal. Serious shock hazard leading to death or injury may result if the plotter is not properly grounded.

Choosing an Interface Cable
(Instructions ' User's Guide, chapter 1, w Connect the plotter to your computer.)
Serial (RS 232 C) Interface A short cable (less than 15 meters or 50 feet) is recommended

for the RS 232 C interface. A longer cable is permissible, provided the load capacitance does not exceed 2500 picofarads.

Parallel (Bi Tronics/Centronics) Interface Use a short cable (less than 2 meters or 6.6 feet)

for the parallel interface.

(Interface descriptions ' Service Manual, chapter 5, w Input/Output Interfaces.)
230 250C 330 350C

(Pin specifications ' User's Guide, chapter 5, w Interface specifications.) (Pin specifications ' User's Guide, chapter 10, w Interface specifications.) (Cable part numbers ' Service Manual, chapter 10.)

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Choosing a Suitable Plotter Environment
(Instructions ' User's Guide, chapter 1, w Position the plotter.) Environmental Specifications
Hardware: Operating environment: Plotter With cartridges and media: Storage environment: Plotter/media Cartridges Environmental Class B2 Temperature 0 to 55_C (32 to 131_F) 15 to 35_C (59 to 95_F) Temperature ­40 to +70_C (­40 to +158_F) ­40 to +40_C (­40 to +104_F) Sound Pressure D/A1-size plotters E/A0-size plotters 43 dB (Acoustic) 45 dB (A) < 20 dB (A) Sound Power 6.0 bels (A) < 3.6 bels (A) Relative Humidity 5-25% 20-80% Relative Humidity 5-95%

Acoustics:* Operating Idle assumes fan is off.

*These specifications are typical sound pressures at a one meter bystander position. Idle specification

Plotter Dimensions and Weight
Plotter Model: Length Depth Height (window closed) Weight D/A1-size plotters 1028 mm (40.5 in) 237 mm (9.3 in) 327 mm (12.9 in) 26 kg (57.2 lb) E/A0-size plotters 1327 mm (52.2 in) 237 mm (9.3 in) 327 mm (12.9 in) 31 kg (68.2 lb)

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Notes

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Installation and Configuration

31

Unpacking and Assembling the Plotter
When the plotter arrives at the user site: 1 Inspect the shipping container for damage. If the shipping container shows signs of damage, retain it until you have checked the contents of the shipment and verified the performance of the plotter. 2 Unpack and assemble the plotter, following the series of illustrations below.

32Kg (71 lb)

32Kg (71 lb)

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33

Inspecting the Plotter for Damage
Visually inspect the plotter for damage, scratches, dents, or other mechanical defects. If the plotter is damaged in transit, notify the carrier and the nearest HP Sales and Support Office. Retain the shipping container and insulation material for the carrier's inspection. The Sales and Support Office will arrange for the repair or replacement of the plotter.

Repacking the Plotter
You can order a repacking kit if you need to repack the plotter and don't have the shipping container and insulation material. (Part numbers ' chapter 10.)

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Installation and Configuration

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Assembling the Legs (Optional)
If the user has purchased the optional legs for the plotter, assemble them following the series of illustrations below:

E/A0 size plotters only.

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Installation and Configuration

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32Kg (71 lb)

E/A0 size plotters only.

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330 350C

Assembling the Roll Feed Assembly (Optional)
If the user has purchased the optional roll feed assembly for the plotter, assemble it following the series of illustrations below:

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2 1

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3 10

Installation and Configuration

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Installation and Configuration 3 11

Installing the Plotter
(Instructions ' User's Guide, chapter 1, Setting up the plotter.)

Using the Plotter
(Instructions ' Quick Reference Guide.)

DesignJet 230 Front Panel

Setup
Paper
or vellum or translucent

Read Settings

Align Cartridges

Replot

Cartridge Fast Normal
Both ON = Best

Error Load Media Ready

Film

Form Feed

Media Type

Print Quality

Cancel

DesignJet 250C Front Panel

Setup
Paper
or vellum or translucent

Read Settings

Align Cartridges

Replot

Cartridges Fast Normal
Both ON = Best

Error Load Media Ready

Film Special paper
for color

Form Feed

Media Type

Print Quality

Cancel

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DesignJet 330 Front Panel

SETUP

REPLOT

FORM FEED

CONTINUE PLOTTING

Load Media

DesignJet 350C Front Panel

SETUP

REPLOT

FORM FEED

CONTINUE PLOTTING

Load Media

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Third Party Inks and Off Axis Ink Systems
HP does not support third party inks or off axis ink systems for use with any of its DesignJet series plotters or printers. If a failure or damage to such HP products is found to be directly attributed to the use of third party inks or off axis ink systems (or any other non supported HP supply or accessory), the repair will NOT be covered under HP's warranty or maintenance contract. In such cases, standard time and material charges will be applied to service the plotter or printer.

Configuring the Plotter
The User's Guide describes how to configure the following settings using a setup sheet : D D D D D D D D Language of demonstration plot, setup sheet and cartridge alignment sheet Baud rate and parity of serial interface Graphics language Input/output timeout period Plot orientation (rotate and mirror) and line merging Color/monochrome Page size Pen palette settings (width and density)

330 350C

Examples of the setup sheets are given on the following pages. You can change between pattern, scatter and cluster half toning by means of a software driver.

Verifying Plotter Operation
The plotters contain several types of internal operational checks and tests to ensure that the plotter is properly functioning and to help identify problems if any are detected.

Power On Self Tests
Whenever you switch the plotter on, it automatically performs a series of internal self tests and mechanical initialization sequences. If a failure occurs, an error is indicated on the front panel LEDs. You can perform a failure analysis by interpreting the LED error code. (Details ' chapter 8.)

Demonstration Plot
You can check proper plotter operation by plotting and examining the demonstration plot, which is resident in the plotters. This plot shows different plotter capabilities including pen line widths and shading. You can set the demonstration plot, to plot in any of the languages listed in the Language box of the setup sheet on the following page. (Instructions ' User's Guide, chapter 1, w Change the language, ' User's Guide, chapter 1, w Send a sample plot or demo plot.) 3 14 Installation and Configuration C4699 90000

230 250C

Example of Setup Sheet
The following is a scaled version of a DesignJet 250C setup sheet (setup sheet for Designjet 230 is very similar):

HP DesignJet 250C

Setup Sheet

1
1. Language
English Français Deutsch Español Italiano Português Baud Rate 1200 2400 4800 9600 19200 38400

Current setting= Desired setting= Pencil or black pen

2. Serial Interface
Parity None Even Odd

3. Graphics Language
HP­GL(7586B) HP­GL/2

5. Plot Appearance
Rotate off Rotate 90_ Mirror off Mirror on Merge off Merge on

4. I/O Timeout
0.5 min 1 min 5 min 30 min

6. Color/ Mono
Print color as color Print color as grayscale

7. Pen Settings

Use settings from software Use settings from tables below

If you want these pen settings to take effect, don't forget to mark the oval above.

Pen Number Width (mm) 0.13 0.18 0.25 0.35 0.50 0.70 1.00 Grayscale 100% 80% 60% 40% 20% 10% 5%

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

Color Black Red Green Yellow Blue Magenta Cyan

2
Read Settings

3

R Ready

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330 350C

Example of Setup Sheet
The following is a scaled version of a DesignJet 350C setup sheet (setup sheet for Designjet 330 is very similar):

350C

Software

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Preventive Maintenance

41

Moisture on Plotter
Users should use the plotter in an environment between 5% and 95% relative humidity. To recover from moisture condensation, turn the plotter off, and, using the main roller as a reference, wait until the plotter is completely dry before using it again. (Other environmental specifications ' chapter 2.)

Level of Plotter Usage
To achieve good performance and long lifetime of the HP DesignJet 230/250C and HP DesignJet 330/350C plotters, users should limit use to the following recommendations (duty cycle): Average number of plots per day
10 E/A0 CAD plots

Maximum number of plots per day
20 E/A0 CAD plots

The service configuration plot gives an indication of how much the plotter has been used: number of plots, number of cartridges, number of times the plotter has been turned on. (Details ' page 8 49/8 50.)

Friction on Slider Rod
The carriage bushings are made of a porous composite material. Oil stays inside them by means of capillary action. Never place the bushings on an absorbant material. To prevent friction of the bushings on the slider rod, remove dirt from the slider rod and chassis beam. Apply oil (Anderol 4068, HP part number: 6040 0858) to the slider rod ( 3 drops) and to the bushings if they are running dry.

Noisy Carriage Wheel
To prevent noisy movement of the carriage, remove aluminum or dust particles from the wheel at the back of the carriage, and from the slider path along which the wheel moves.

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Ink Spilling
The service configuration plot gives an estimation of the amount of ink in the plotter's spittoon. (Details ' page 8 49 or 8 50.) To prevent ink spilling, replace both the spittoon and the ink separator when the spittoon is almost full. About 880 primes are needed to fill up the ink separator. Note that if you clear the EEROM or replace the electronics module, the factory spittoon value is reset to 0% used. Keep in mind that the value printed on the service configuration plot may greatly underestimate the amount of ink in the spittoon. Future PC based plotter diagnostics will enable you to download information from the old EEROM and upload it to the new EEROM.

Belt Swelling
To prevent new belts from swelling incorrectly, keep them in their bags with dissicant until you need to install them.

Cleaning the Roll feed Assembly
Always clean the rubber diverter of the roll feed assembly with a dry cloth. Never clean it with water or alcohol based substances.

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Cleaning the Plotter
To maintain the plotter in good operating condition, keep it free of dust accumulation, ink, and other contamination. Cleaning intervals are determined by the plotter environment and by the types of plotter supplies used. WARNING Disconnect the plotter from the power source prior to performing any cleaning. DO NOT allow liquid to run on to electrical components or circuits, or through openings in the enclosure, as this can create a shock hazard leading to death or injury.

General Cleaning
Proper general cleaning should include the following: 1 Blow away dust accumulation with compressed air if available. 2 Clean the outer surface of the plotter with a damp sponge or cloth. Use a mild soap and water solution if necessary. Do not use abrasive cleaners. 3 Wipe the plotter dry with a soft lint free cloth.

Cleaning the Drive Roller
Due to the ink's reflectance, ink spilled on the roller can disrupt the plotter's edge sensing function. To remove any ink from the roller, perform the following procedure: 1 Connect the plotter to the ac power source. 2 Switch the plotter ON, and wait for it to finish initialization. 3 Open the top cover. 4 Keep the cover switch pressed while pressing Form Feed repeatedly until the stained area of the drive roller is positioned at the top where it can be cleaned. 5 Turn the plotter OFF, and disconnect it from the ac power source. 6 Apply IPA (alcohol) to a soft, lint free rag. 7 Use the rag to clean the roller surface. 8 Allow the drive roller to dry. 9 If other areas of the roller have been stained by ink, repeat the above steps. 10 Reconnect the plotter to the ac source, turn the plotter on, and load paper to test that no ink reflections disrupt operation of media loading.

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Functional Overview

51

Introduction
The HP DesignJet 330 and 350C follow on from and replace the DesignJet 230 and 250C. The HP DesignJet 230 and 250C originally replaced the DesignJet 220 but are now no longer produced. The HP DesignJet 330 and 350C (like the DesignJet 230 and 250C) have inherited much of the system architecture and features of the DesignJet 220. Their writing system, however, is based on that of the DesignJet 650C. This chapter describes only the main features new to the DesignJet 230 and 250C and DesignJet 330 and 350C. Before reading it, read the functional overview of the DesignJet 220 ' HP DesignJet 220 and HP DesignJet 200 Plotters - Service Manual," part number C3187 90000. (Information on the DesignJet 650C ' HP C2858B/C2859B DesignJet 650C Service Manual," part number C2858 90000 Rev B).

Loading Sheet Media
The actions performed by the plotters in loading sheet media are similar to those of the DesignJet 220. (There are some differences due to the different position of the media sensor.) The following diagram shows the sheet media loading sequence. The vertical arrows represent movement of the media. The thick horizontal bars represent movement of the carriage to sense the media edges.

0

1 2 3 4 7 5 15

6 8 9 11 10

12 13 14

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During sheet media loading, the plotter: 0 Detects the front edge of the media. (Media sensor located before pinch arm stops.) 1 Grips and advances the media. 2 Moves the media forwards and backwards to check whether it is still present and correctly gripped. 3 Advances the media and rechecks media presence. (The loading process fails if the media sensor detects no media.) 4 Actuates the bail so that the media can advance under it. 5 Moves the media to a given absolute position. 6 Again moves the media forwards and backwards to check for its presence. (The loading process fails if the media sensor detects no media.) 7 Moves the carriage to sense the right and left edges and to check dimensions. 8 Advances the media six inches. 9 Checks the right edge of the media for skew (misalignment). (The loading process fails if the skew is greater than the allowed limits.)
330 350C

10 If the media is slightly misaligned, the plotter gives you the opportunity to realign it. After realigning, the right edge of the media is checked again for skew (misalignment). (The loading process fails if the skew is greater than the allowed limits or if the aligned media is too far away from the load line.) 11 Advances the media until the media sensor detects the end of the media. 12 Checks the position of the right edge of the media. 13 Extrapolates the skew to the upper and lower edges of the media. 14 Calculates the media dimensions: print margin, length and width. 15 Moves the sheet to the printing position and resets the media axis servo position.

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330 350C

Loading Roll Media on the DesignJet 330 and 350C
The following diagram shows the Roll media loading sequence. The vertical arrows represent movement of the media. The thick horizontal bars represent movement of the carriage to sense the media edges.

1 2 3 4 9 5 6 7 8 11 12 10 13

During roll media loading, the plotter: 1 Grips and advances the media. 2 Moves the media forwards and backwards to check whether it is still present and correctly gripped. 3 Advances the media and rechecks media presence. (The loading process fails if the media sensor detects no media.) 4 Actuates the bail so that the media can advance under it. 5 Again moves the media forwards and backwards to check for its presence. (The loading process fails if the media sensor detects no media.) 6 Advances the media several inches and rechecks media presence. (The loading process fails if the media sensor detects no media.) 7 The plotter stops and allows you to realign the media. 8 Again moves the media forwards and backwards to check for its presence. (The loading process fails if the media sensor detects no media.) 9 Moves the media backwards several inches. 10 Moves the carriage to sense the right and left edges and to check dimensions. 11 Advances the media several inches.

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12 Checks the right edge of the media for skew (misalignment). (The loading process fails if the skew is greater than the allowed limits.) 13 Moves the sheet to the printing position and resets the media axis servo position.

330 350C

Roll Media
When a roll feed assembly is installed on the DesignJet 330 and 350C roll media can be used. The roll feed assembly consists of: D D D D A roll feed frame A spindle Two media stops A built in cutter

The roll feed assembly is installed below the sheet media entry path, to allow the ease of loading for sheet media. When roll media is loaded into the plotter, it is passed around a diverter roll, which optimizes the infeed path to the plotter. Once a plot is completed, the built in cutter is manually slid across the paper to cut the plot from the roll. For further information ' User's Guide, chapter 2.

Removing Static Charge from the Media
An anti static brush located under the entry platen prevents static charge from building up on the media. A charge can cause the media to stick to itself and jam the plotter.

Gripping the Media
When you load the media, it is gripped by the pinch arms. There is no pinch arm sensor on the DesignJet 230 and 250C but there is one on the DesignJet 330 and 350C.
330 350C

Pinch Arm Sensor
The pinch arm sensor is a switch sensor that is attached to the spittoon. It detects the position of the pinch arm lever. Linkage, attaching the lever to a cam, causes the cam to release the switch as the pinch arms are raised. The pinch arm sensor is electrically connected to the main PCA.

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Providing a Force on Top of the Media
Bail
The bail provides a normal force on top of the media. Unlike on the DesignJet 220, there is no bail sensor on the DesignJet 230 and 250C and DesignJet 330 and 350C.

Bail Lift Mechanism
The bail features an automatic lift mechanism driven by the media motor using a series of gears and actuated by the cartridge carriage. The mechanism is different from that used in the DesignJet 220. The new cable based design eliminates the torque on the axle of the bail lift cam and thus improves reliability. The new mechanism is also more accessible. (Removal ' page 6 29.)

Moving the Carriage
Carriage Drive Mechanics
Motor, Belt and Pulley D The carriage (Y axis) drive consists of a DC motor directly driving a single belt and the carriage. This replaces the dual belt system of the DesignJet 220. D The motor assembly itself provides the tension needed on the belt, eliminating the need for a separate pulley tensioner. D The belt clamps itself to the carriage; there are no separate belt clamps. D The interface between the motor shaft and belt is friction based. D You can remove the belt without having to remove the pulley on the left end of the belt. Carriage Guidance The carriage moves along on just one stainless steel slider rod. It is guided by two integrated bronze bushings, which are self lubricating, and a back wheel. Positional Feedback An encoder strip, similar to that on the DesignJet 650C, provides feedback on the position of the carriage. The strip does not require adjustment.

Take care not to cut yourself on the encoder strip inside the plotter.

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Detecting the Lines and Media Edges
Line Sensor
The line sensor on the cartridge carriage is used to: D D D D Detect the left and right media edges. Detect and measure lines drawn on media when performing accuracy calibration. Scan the setup and alignment sheets. Find the platen roller reference mark.

330 350C

Providing Ink
Print Cartridges
The DesignJet 250C uses the same four print cartridges as does the DesignJet 650C. The DesignJet 350C uses the same three color print cartridges as does the DesignJet 750C and 755CM plotters and the same black cartridge as the DesignJet 650C. The DesignJet 230 and 330 plotters use only the black cartridge which is used in the DesignJet 650C. Distance between Carriage and Media The distance between the carriage and the writing surface can determine image sharpness. As the distance increases, the drop shape and directionality degrade and are more difficult to predict. You can change the distance using the adjusting screw on the carriage. (Details ' chapter 7.)

Carriage (Side View)
Adjusting Screw Back Slider

Beam Cross­section

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Bail-Lift Engaging Tab Integrated Line Sensor

Functional Overview

57

Producing an Image
Print Mode Characteristics
Note that the firmware can recognize from the plot data whether a plot is color or monochrome. You do not set this parameter on the front panel.
230 250C

Monochrome Plots on Paper (or vellum or translucent) Fast Resolution (dpi) Passes per Swath (#) Carriage Speed (ips) Carriage Axis Depletion Media Axis Depletion Pass Advance (swaths) Bidirectional Minimum Pass Time (sec) 300x300 1 26.67 No No 1 Yes 0.5 Normal 600x600 addressable 2 26.67 Yes Yes 0.5 Yes 0.75 Best 600x600 addressable 2 26.67 Yes Yes 0.5 No 0.75

230 250C

Monochrome Plots on Film The characteristics for monochrome plots on film are the same as for monochrome plots on paper, except for the minimum pass time: Minimum Pass Time (sec) 7.6 3.8 3.8

230 250C

Monochrome Plots on Special Paper Fast Resolution (dpi) Passes per Swath (#) Carriage Speed (ips) Carriage Axis Depletion Media Axis Depletion Pass Advance (swaths) Bidirectional Minimum Pass Time (sec) 300x300 1 26.67 No No 1 Yes 0 Normal 600x600 addressable 2 26.67 Yes Yes 0.5 Yes 0 Best 600x600 addressable 2 26.67 Yes Yes 0.5 No 0

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230 250C

Color Plots on Special Paper Fast Resolution (dpi) Passes per Swath (#) Carriage Speed (ips) Carriage Axis Depletion Media Axis Depletion Pass Advance (swaths) Bidirectional Minimum Pass Time (sec) 300x300 1 16.67 No No 1 Yes 0 Normal 300x300 1 16.67 No No 1 No 0 Best 300x300 2 16.67 No No 0.5 No 0

330 350C

Monochrome Plots on Paper and Film Media Fast Resolution (dpi) Passes per Swath (#) Carriage Speed (ips) Carriage Axis Depletion Media Axis Depletion Pass Advance (swaths) Bidirectional Minimum Pass Time (sec): Paper Film 300x300 1 26.67 No No 1 Yes Normal 600x600
addressable

Normal 300x300
addressable

Best 600x600
addressable

Best 300x300
addressable

2 26.67 Yes Yes 0.5 Yes

2 26.67 Yes Yes 0.5 Yes

2 26.67 Yes Yes 0.5 No

1 26.67 Yes Yes 0.5 No

0.5 7.6

.75 3.8

.75 3.8

.75 3.8

.75 3.8

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330 350C

Monochrome Plots on Coated Media Fast Resolution (dpi) Passes per Swath (#) Carriage Speed (ips) Carriage Axis Depletion Media Axis Depletion Pass Advance (swaths) Bidirectional Minimum Pass Time (sec) 300x300 1 26.67 No No 1 Yes 0 Normal 600x600
addressable

Normal 300x300
addressable

Best 600x600
addressable

Best 300x300
addressable

2 26.67 Yes Yes 0.5 Yes 0

1 26.67 No No 1 No 0

2 26.67 Yes Yes 0.5 No 0

1 26.67 No No 1 No 0

330 350C

Color Plots on Paper and Coated Media Fast Resolution (dpi) Passes per Swath (#) Carriage Speed (ips) Carriage Axis Depletion Media Axis Depletion Pass Advance (swaths) Bidirectional Minimum Pass Time (sec) 300x300 1 16.67 No No 1 Yes 0 Normal 300x300 1 16.67 No No 1 No 0 Best 300x300 2 16.67 No No 0.5 No 0

330 350C

Color Plots on Film The characteristics for color plots on film are the same as for color plots on paper, except for the passes per swath (#) and pass advance (swaths): Passes per Swath (#) Pass Advance (swaths) 1 1 2 0.5 4 0.25

5 10

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330 350C

Color Plots on Glossy Paper The characteristics for color plots on glossy media are the same as for color plots on paper, except for the passes per swath (#), pass advance (swaths) and bidirectional abilities: Fast Passes per Swath (#) Pass Advance (swaths) Bidirectional 4 0.25 No Normal 4 0.25 No Best 6 0.167 No

Servicing the Cartridges
Service Station
The service station is based on that of the DesignJet 650C, with some differences. D The service station is easier to access and remove, and is replaceable as one unit. D The absence of a drop detector implies a different cartridge maintenance algorithm to guarantee correct nozzle conditions. The plotter warms the nozzles and spits ink: - Before each plot. - After each cartridge change. - While printing, depending on: cartridge, humidity, temperature, and plot ink density. D The ventilation holes, which were located on the service station sled on the DesignJet 650C, are now located on the ink separator to prevent them from becoming clogged.

Spittoon
A single, redesigned spittoon is located on the right side of the plotter.

Primer
The plotters feature a manual primer, based on that of the DeskJet 1200, instead of the automatic one of the DesignJet 650C. (See ' User's Guide, w Cleaning the cartridge nozzles.) D A bellows assembly provides a vacuum to suck ink from the nozzles. The suction tubes have a wider diameter than those of the DesignJet 650C, to help prevent clogging. D An ink separator isolates the bellows from the cartridges, preventing ink contamination of the bellows. Although the primers for the DesignJet 230/250C and DesignJet 330/350C look identical, their characteristics are different. Installing the incorrect primer can damage the cartridges or reduce the servicing of the cartridges. For the correct part numbers for the primers ' chapt