HP Dj T520 T120 service manual.pdf
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18375 KB
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DESIGNJET T120/T520 ePrinter Series
Service Manual
iv
Notices
ENWW
Using this manual
This service manual contains information necessary to test, maintain, and service the following:
HP Designjet T120 Basic Printer 24 inch
HP Designjet T520 Pro Printer 24 inch
HP Designjet T520 Pro Printer 36 inch
CQ891A
CQ890A
CQ893A
For information about using these printers, see the user's guide.
Readership
The procedures described in this service manual are to be performed by HP Certified service personnel
only.
Part numbers
Part numbers for printer service parts are located in
Parts and diagrams on page 126.
ENWW
v
http://www.justmanuals.com
vi
Using this manual
ENWW
Table of contents
1 Printer fundamentals ........................................................................................................ 1
Overview ................................................................................................................................ 1
Using the front panel ................................................................................................................ 2
Start-up sequence ..................................................................................................................... 3
Subsystems .............................................................................................................................. 5
2 Troubleshooting .............................................................................................................. 34
Printer troubleshooting flowchart .............................................................................................. 35
Basic printer troubleshooting ................................................................................................... 36
System error codes ................................................................................................................. 39
Paper troubleshooting ............................................................................................................. 61
Communication troubleshooting ............................................................................................... 66
Ink-supplies troubleshooting ..................................................................................................... 70
Print-quality troubleshooting ..................................................................................................... 83
Update the firmware ............................................................................................................... 97
3 Support menus ............................................................................................................. 101
Entering the support menus .................................................................................................... 102
Support menu ...................................................................................................................... 104
Extended Support menu ........................................................................................................ 124
4 Parts and diagrams ...................................................................................................... 126
Introduction ......................................................................................................................... 126
Printer support ..................................................................................................................... 127
Covers ................................................................................................................................ 128
Roll covers .......................................................................................................................... 129
Right-hand assemblies ........................................................................................................... 130
Left-hand assemblies ............................................................................................................. 132
Carriage assembly ............................................................................................................... 134
Paper path (front) ................................................................................................................. 136
Paper path (rear) ................................................................................................................. 137
Roll supports ........................................................................................................................ 138
Sensor Kit ........................................................................................................................... 139
Miscellaneous parts .............................................................................................................. 140
ENWW
vii
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