HP 1055CMHP - Manual (Page 83)

Service Tests and Utilities
4-9 HP DesignJets 1050C and 1055CM Printers Service Manual
Carriage Test Failure
If there is a problem with the Carriage and any related parts then the
following message will appear on the front panel:
In this case, try one of the following:
1 Remove the Printheads and clean the Carriage and Printhead flex
circuits using the Carriage Interconnect Wiper
⇒
Page 3-18
.
Reinstall the Printheads and try the test again.
2 If the test fails again, replace the Printheads.
3 Make sure that the Trailing Cable is connected correctly to the
Carriage Assembly and to the Electronics Module.
4 Power OFF the Printer and connect a new Trailing Cable to the
Carriage and the Electronics Module (without removing the old
Trailing Cable from the Printer). Perform this test again and if the
test FAILS, then DO NOT replace the trailing cable. If the test
PASSES, replace the Trailing Cable
⇒
Page 8-39.
5 Power OFF the Printer and connect a new Carriage Assembly to
the Trailing Cable (without removing the old Carriage Assembly
from the Printer). Perform this test again and if the test FAILS, then
DO NOT replace the Carriage Assembly. If the test PASSES, replace
the Carriage Assembly
⇒
Page 8-44.
6 Power OFF the Printer and connect a new Electronics Module to
the Trailing Cable (without removing the old Electronics Module
from the Printer). Perform this test again and if the test FAILS, then
DO NOT replace the Electronics Module. If the test PASSES,
replace the Electronics Module
⇒
Page 8-25.
WARNING Only replace one component at a time and try the Service Test
again before replacing another component. Using this procedure
you will be able to determine exactly which component failed.
ELECTRONIC SYSTEMS
Possible Failure on:
1. Printhead CYMK
Code: 00XXXX:0000XX
2. Trailing/Carriage
3. Electronics Module