Introduction; Diagnostics Self Test; Initialization Sequences - HP DesignJet 2500CP Service Manual

Introduction

This chapter explains how to use the built in Service Tests (Diagnostics) and
what to do if the tests fail. If possible, always perform a Service Test on the
component that you are about to replace, just to make sure that is the
component that has failed. If the test on that component passes, there is no
need to replace it.

Diagnostics Self Test

Initialization Sequences

Whenever the the Printer is switched on, it automatically performs a series of
internal self tests and mechanical initialization sequences. If the Printer is
switched ON in Service Mode, the front panel display will show a code next to
the message Initializing". These codes refer to the part which the printer is
testing at that moment. If any of these parts fail, a system error will appear
and you should consult the System Error Codes ' Chapter 2.
Code Parts Tested
b Sensors and X Encoder Fuse
c Interconnect Boards detection
d ADC in the Main PCA
e Fans
f DC Motor Driver ASIC
g DC Motors detection
h Stepper Motors detection
i ADC in the Carriage PCA
j Printhead Voltage in Main PCA
k Printhead Voltage in Carriage PCA
l Printhead Primitive Driver ASIC
A RAM SIMM
B Flash SIMM
C Swath RAM
I Hard Disk Drive
4-2
System Error if failed
010023
010030
010036
010032
010033
010034
010035
010037
010038
010039
010031
010021
010020
010022
08xxxx
HP DesignJet CP Series Printers Service Tests