Tech Help — Designjet T1100

This problem occurs in the following Designjet models: T610, T620, T770, T790, T1100, T1120, T1200, T1300, T2300, Z2100, Z3100, Z3200, Z5200, Z5400.  Your printer is in the middle of "preparing print system," and after 20 minutes of waiting, it displays the message "printhead replacement incomplete." You power the machine down, and back on, and it still tells you "printhead replacement incomplete." Very often, this is caused by insufficient ink supply. If you are using non-HP brand ink cartridges, install new HP cartridges. If any of the ink cartridges is below 40% full, replace that cartridge.  If there are any pockets...

This problem occurs in the following HP Designjet models: T610, T620, T770, T790, T1100, T1120, T1200, T1300, T2300, Z2100, Z3100, Z3200, Z5200, Z5400.  If your printer is rejecting HP 70 printheads or HP 72 printheads, or if the printheads seem generally unreliable, there's a good chance there's nothing wrong with the printheads themselves. Often the contacts on the trailing cable corrode, and fail to send a consistent signal to and from the printheads. If you're on your second or third replacement printhead, and about ready to put some creatively-placed holes in the printer, power the machine off, and check the...