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HP DesignJet 430 450C 455CA Service Manual

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HP DesignJet 430 450C 455CA Service Manual


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Using this Manual
Purpose This manual contains information necessary to test, calibrate and service:
D D D

HP DesignJet 430 printers (models C4713A and 4714A). HP DesignJet 450C printers (models C4715A and 4716A). HP DesignJet 455CA printers (models C6080A and C6081A).

For information about using these printers, 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. Part Numbers Part numbers for plotter options, accessories and service parts are located in chapter 7. Conventions This manual contains information for the color HP DesignJet 430, 450C and 455CA printers. 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.

ii

Using this Manual

HP DesignJet 430, 450C and 455CA Printers

Contents

Using this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x 1 Troubleshooting 12 12 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 4 4 4 4 5 6 6 7 7 8 8

Is the Printer Using the Latest Firmware Revision? . . . . . . . . . . . . . . . . . . . . . . . Important Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Can I do when a System Error Code Appears on the Front Panel Display? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Have you performed a Service Test on the Failed Component/Assembly? . . . . . . . Have you Performed the Accuracy Calibration? . . . . . . . . . . . . . . . . . . . . . . . . . . . What can I do to Solve Print Quality Problems? . . . . . . . . . . . . . . . . . . . . . . . . . . . What can I do if the Line Sensor has Problems Detecting Media? . . . . . . . . . . . What can I do if the Carriage is Noisy? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What can I do if the Cover Sensor isn't Working? . . . . . . . . . . . . . . . . . . . . . . . . . . What can I do if the Carriage Assembly has problems
parking in the Service Station? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What can I do if the Printer continuously rejects Cartridges? . . . . . . . . . . . . . . . What can I do if the Media continuously crashes? . . . . . . . . . . . . . . . . . . . . . . . . . What can I do if the Printer does not Power ON? . . . . . . . . . . . . . . . . . . . . . . . . . . What can I do if the Printer has problems with Media Loading? . . . . . . . . . . . . . What can I do if the Printer has problems with the Cutter? . . . . . . . . . . . . . . . . . What can I do if the Bail Mechanism Fails? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What is an EEROM error? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 System Error Codes

Important Information on Troubleshooting Error Codes . . . . . . . . . . . . . . . . . . . 2 2 System Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 3 User Messages

User Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2

HP DesignJet 430, 450C and 455CA Printers

Contents iii

4

Service Tests 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 2 2 2 3 3 4 6 6 6 7 8 9 10 12 15 16 18 19 21 22 22 22 23 24 25 26 27 29 30 30 32

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self Test and Normal Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Which Service Test to Perform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Tests (Diagnostics) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Mode 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stopping a Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entering Service Mode 1 . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Viewing Test Output via the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bail Cycle Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Panel Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage Axis (Y axis) Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sensors Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Media Axis (X Axis) Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bench Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modular Test . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronics Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stopping a Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entering Service Mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bail Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Servo/Encoder Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Monitor (Data Display) . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . EEROM Model ID Configuration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Configuration Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printing the Service Configuration Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interpreting the Service Configuration Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . Clearing the EEROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Service Calibrations

Accuracy Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What is the End Point Accuracy Specification ? . . . . . . . . . . . . . . . . . . . . . . . . What can Affect the End Point Accuracy ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Before Performing the Accuracy Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . Performing the Accuracy Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjusting the Carriage to Media Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . To check the carriage to media distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . To adjust the carriage to media distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 5 5 5 5 5 5 5 5

2 2 2 2 3 3 5 5 7

iv

Contents

HP DesignJet 430, 450C and 455CA Printers