HP 1055CMHP - Manual (Page 90)

Service Tests and Utilities
4-16
HP DesignJets 1050C and 1055CM Printers Service Manual
appear on the front panel:
In this case, try one of the following:
1 Check all the cables of the APS and make sure they are correctly
connected and are NOT damaged.
2 Check all the tubes of the APS and make sure they are NOT pinched
or damaged.
3 Replace ALL the Ink Cartridges.
4 Replace the complete APS
⇒
Page 8-20.
5 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. DRAM DIMM(s)
Code: 00XXXX:0000XX
2. Electronics Module
INK PRESSURE SYSTEM
Possible Failure on:
1. APS
Code: 00XXXX:0000XX
2. Electronics Module