HP 430 manual Service Tests, Entering Service Mode, Stopping a Test, Front anel Test

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Service Tests

Entering Service Mode 1

While holding the Reprint key down￿ switch the Printer ON￿ Once the the LEDs begin to light up one by one￿ release the Reprint key￿

Entering Service Mode 2

While holding the Media Source key down￿ switch the printer ON￿ Once the the LEDs begin to light up one by one￿ release the Media Source key￿

Stopping a Test

The service tests are continuously repeated in Service Mode 1 until you press the Cancel and Media Source keys￿ To stop a test in Service Mode 2￿ press any of the front1panel keys￿ To exit any Service Mode￿ you must power OFF the Printer￿

Front ￿anel Test

Purpose 1 Verify the operation of the front1panel keys and LEDs￿

In service mode 1￿ press Front ￿anel Test ￿Form Feed Key￿￿

Check that all LEDs are functioning correctly when they flash￿

Each time a key is pressed￿ the Coated LED ￿LED I￿ will be lit￿

If a key fails￿ the Coated LED ￿LED I￿ will remain OFF￿

If the test fails: Check that the cable for the Front Panel Assembly is connected to the Electronics Module. Also make sure that the cable is NOT damaged or twisted. Replace the Front Panel Assembly. Replace the Electronics Module.

Carriage Axis (Y$axis) Test

Purpose 1 Verify the operation of the components of the Carriage ￿xis￿

Always make sure that the carriage is parked in the service station before starting

this test.

In service mode 1￿ press Carriage$Axis Test ￿Reprint Key￿￿

If the test passes￿ the Fast LED ￿LED A￿ will light up after the first cycle￿

If there is a Y1axis shutdown￿ the Fast LED ￿LED A￿ will start to flash￿

If the test fails: Clear any binding due to a media jam. Turn the Printer off and manually move the carriage along the carriage axis. Check for any areas where the carriage may be binding. Ensure that the belt and belt pulley are in correct working order. Remove dirt from the pulley that could cause the belt to slip. Remove dirt from the slider rod and chassis beam. Apply oil (Anderol 4068, HP part number: 604000858) to the carriage bushings. At high temperatures, and if the fan is not working correctly, the internal resistance of the motor driver may increase, causing a decrease in the voltage between the motor contacts, and a shutdown of the motor. Ensure that the encoder strip is not inverted, damaged or absent. Reconnect or replace the trailing cable. Replace the carriage assembly.

6 Quick Reference Service Manual

HP DesignJet 430, 450C and 455CA Printers

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Contents HP DesignJet 450C HP DesignJet 455CA PrintersENGLISH WarrantyWARNING +#&&* % 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 the Cutter? What can I do if the Bail Mechanism Fails? System rror CodesWhat can I do if the Cover Sensor isnt Working? HP DesignJet 430, 450C and 455CA Printers HP DesignJet 430, 450C and 455CA Printers Service Tests Entering Service ModeStopping a Test Front anel TestCarriage Test Cartridge Continuity Test FailureLine Sensor Test Failure Analog Multiplexer Test FailureModular Test Media3Axis X3Axis TestBench Run Service Monitor Data Display Electronics TestBail Test Electrical TestEerom Model ID Configuration Procedure Calibrations HP DesignJet 430, 450C and 455CA Printers
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