10 Quick Reference Service Manual
HP DesignJet 430, 450C and 455CA Printers
EEROM Model ID Configuration Procedure
The EEROM model ID configuration procedure only needs to be carried out if:
D A preĆconfigured board is being reused.
D The current board is incorrectly configured to the wrong model ID.
D 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.
4 Press the Media Source and Media Type keys together to enter the deconfiguration
mode. The Fast, Normal and Best LEDs (LEDs ABC) will light up.
5 Using a suitable tool, shortĆcircuit pins 1 and 2 (the first two pins on the right) of the
media motor encoder connector (ENC X). The Cartridges, Data and Media LEDs (LEDs
KLM) should light up as you shortĆcircuit the two pins.
6 Once you have shortĆcircuited the two pins, the Fast, Normal and Best LEDs (LEDs
ABC) should light up again.
7 Press the Cancel and Media Source keys together to exit the deconfiguration mode.
8 Configure the Printer with the correct model ID as follows:
Only one opportunity is given to perform this procedure and there is no indication that
it was successful.
If the Printer is to be configured as a DesignJet 450C (Color) Printer, hold the Media
Source key down and press the two Color Configuration (Print Quality + Media
Type) keys at the same time.
If the Printer is to be configured as a DesignJet 430 (Monochrome)Printer, hold the Media
Source key down and press the two Mono Configuration (Print Quality + Setup)
keys at the same time.
If the Printer is to be configured as a DesignJet 455CA (LFP) Printer, hold the Media
Source key down and press the two LFP Configuration (Print Quality + Reprint)
keys at the same time.
9 Turn the Printer OFF.
10 Reconnect the media motor encoder cable to the main PCA (connector ENC X).
11 Turn the Printer ON. After initializing, error code DLM" will appear because the
Accuracy Calibration must still be performed.
12 Press the Cancel key and print the Demo Plot to check if the Printer has been correctly
configured as a DesignJet 430, 450C or 455CA.
If the Printer is still incorrectly configured then Error Code EKL" will be displayed
on the front panel. Turn the Printer OFF and perform the EEROM Model ID
configuration procedure again from step 2.
13 Perform the accuracy calibration.
