HP DesignJet 430 HP DesignJet 450C HP DesignJet 455CA Printers Quick Reference Service Manual ENGLISH
Copyright HewlettPackard Company 1997 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 HewlettPackard Company. First edition, November 1997 Warranty WARNING The information contained in this document is subject to change without notice.
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! Remove tape and align cartridges. When nozzle failures occur, clean the flex contacts on the cartridge and in the Carriage. Remove all cartridges from the Carriage and try installing just the rejected cartridge. If the cartridge is still rejected then replace the cartridge with a new one.
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Purpose Ć Verify the operation of the Carriage subsystems, like the Line Sensor and analog multiplexer and also checks the connection between the carriage flex circuit and the cartridges. In service mode , press (Print Quality Key). Refer to the following list to check which LED is associated with which test. If the test , the following LEDs will be lit ( ). If the test , the following LEDs will be flashing: Cartridge LED Ć Black Cartridge Continuity.
MediaĆAxis (XĆAxis) Test *'&%( / ' . ) %& ' ) %$ % ) %#&%$ $)( % ) - ( $ ( '+ #% 1 &' (( MediaĆAxis Test % *))%$ ) ) () & (( ( ) "%((. ) ' ( ( *) %,$ ) LED J , "" " ) *& ) ' ) '() . " "%((. LED J , "" () ') )% " ( ) ' ) '() . " If the test fails: Switch OFF the Printer and manually moving the carriage along the slider rod, check for obstacle or friction in the XĆaxis.
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EEROM Model ID Configuration Procedure The EEROM model ID configuration procedure only needs to be carried out if: A preĆconfigured board is being reused. The current board is incorrectly configured to the wrong model ID. The Printer shows an unconfigured model ID system error (Steady EKL). 1 Remove the rightĆend cover. 2 Disconnect the media motor encoder cable from the main PCA (connector ENC X). 3 Turn the Printer ON while holding the Reprint key down.
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!. The LED begins to flash and the Printer takes several minutes to plot the calibration plot. The Printer ejects the sheet, and the LED lights up.
