HP Designjet T790 1118 mm User Manual

3.Insert the new printhead into its correct slot in the carriage.
CAUTION:Insert the printhead slowly and vertically, straight down. It may be damaged if you
insert it too fast, or at an angle, or if you rotate it as you insert it.
4.Push down as indicated by the arrow shown below.
CAUTION:When installing the new printhead there may be some resistance, so you need to
press it down firmly but smoothly. You should hear a beep and see confirmation on the front-panel
display that the printhead has been...

6.Ensure the end of the blue handle catches the wire loop on the near side of the carriage.
7.Lower the handle to rest on the carriage cover.
When all the printheads have been inserted correctly and are accepted by the printer, the printer
beeps.
NOTE:If the printer does not beep when you insert the printhead and the Replace message
appears on the front-panel display, the printhead may need to be reinserted.
8.Close the window.
9.The front-panel display confirms that all printheads are correctly...

minutes. After all printheads are checked and prepared, the printhead realignment procedure runs
automatically if paper is loaded, see 
Align the printheads on page 186.
10.You are recommended to perform a color calibration after inserting a new printhead. See 
Color
calibration on page 86.
ENWWInsert a printhead
135
 

14 Maintaining the printer
●Check printer status
●
Clean the exterior of the printer
●
Maintain the ink cartridges
●
Move or store the printer
●
Update the firmware
●
Update the software
●
Printer maintenance kits
●
Secure Disk Erase
136 Chapter 14   Maintaining the printer ENWW
 

Check printer status
You can check the current status of the printer in various ways:
●If you start the HP Utility and select your printer, you see a page of information describing the
status of the printer and its paper and ink supplies.
●If you access the Embedded Web Server, you see information about the general status of the
printer. The Supplies page in the Main tab describes the status of the paper and ink supplies.
●
At the front panel, you can press 
 for information about paper, ink levels, ink...

If you need to leave the printer turned off for a long time, follow the additional steps below.
1.Turn off the power using the Power key on the front panel.
2.Also turn off the power switch at the rear of the printer.
3.Disconnect the printers power cable.
CAUTION:If you turn the printer upside down, ink could escape into the printer and cause serious
damage.
When the printer is turned back on, it takes about three minutes to initialize itself and to check and
prepare the printheads. Preparing the...

●A firmware update package can be large; you may want to consider whether there are any
implications for your network or Internet connection. Downloads made with a Jetdirect adaptor are
slower than those made with the built-in Ethernet adaptor.
●A firmware update is downloaded in the background: the printer can be printing at the same time.
However, it cannot be installed in the background: printing must stop.
Manual firmware updates
Manual firmware updates can be performed in the following ways:
●Using...

Secure Disk Erase provides three different levels of security:
●Non-Secure Fast Erase: all pointers to the information are erased. The information itself
remains on the hard disk until the disk space it occupies is needed for other purposes, and it is
then overwritten. While it remains on the disk, it is difficult for most people to access, but may be
accessed using software designed for the purpose. This is the normal method in which files are
erased on most computer systems; it is the fastest method...

15 Accessories
●How to order supplies and accessories
●
Introduction to the accessories
ENWW141
 

How to order supplies and accessories
There are two alternative ways to order supplies or accessories for your printer:
●Visit 
http://www.hp.com/go/T790/accessories or http://www.hp.com/go/T1300/accessories
on the Web.
●Contact HP Support (see 
Contact HP Support on page 203).
The rest of this chapter lists the available supplies and accessories, and their part numbers.
Order ink supplies
The following ink supplies can be ordered for your printer.
Table 15-1  Ink cartridges
CartridgePart number
HP 72 69...