HP Designjet L25500 Printer series - Manual (Page 54)

Although it is possible to use refilled or non-HP ink cartridges, either choice has several serious
disadvantages:
● There is some risk of damaging the printer. In this case the printer warranty will not be valid for any
printer repairs that are related to the cartridge, nor for any problems due to ink contamination.
● You will invalidate the warranty of all printheads of the same color used in the printer subsequently,
unless and until the whole ink system (including ink tubes) is replaced.
● Print quality may be impaired.
● The printer will be unable to estimate the ink level in the cartridge, and will report it as empty.
If you decide to use refilled or non-HP ink cartridges, you will need to follow these instructions to make
the printer use a cartridge that it believes to be empty.
1. Install the cartridge in the printer (see Replace an ink cartridge on page 52 ).
2. The front panel will complain that the cartridge is empty, and the cartridge removal process will
start. Press the
Cancel key to stop this automatic process.
3. At the front panel, select the icon.
4. Highlight Replace ink cartridges, but do not select it.
5. Press the Cancel key and the Up key at the same time, and hold them down for at least two seconds.
6. The front panel will display a series of warning messages. In response to each message, press
the
Cancel key to cancel the process, or the Select key to confirm that you wish to continue.
When you have pressed Select in response to all warning messages, the front panel will give the usual
ink cartridge status display, but the refilled or non-HP cartridge will be shown as empty with a warning
sign.
Printheads
The printheads are connected to the ink cartridges. Each printhead has two ink cartridge connection
points and two jet nozzles, which means that each printhead accommodates two ink cartridges. For
example, the following printhead image indicates a printhead that draws and jets ink from the light
magenta and magenta cartridges.
The printheads are extremely durable and do not need to be replaced every time an ink cartridge is
replaced. They provide excellent results even when the ink cartridges contain a low level of ink.
To maintain optimum print quality, the printheads are automatically tested at regular intervals, and
automatically serviced when necessary. This takes a little time and can occasionally delay printing.
When a printhead eventually needs to be replaced, the front panel will display a message.
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