Finally, as this paper expansion is increasing when a high quantity of ink is placed at once, the HP Designjet
T7200 might exhibit this paper expansion more than when compared to the DJ5x00 or DJ10x0 series.
Printheads fail repeatedly
If you encounter intermittent quality issues that are not solved after replacing Printheads or repeated
replacement of the same Printheads there might be a capping problem. This could be caused damage to the
Maintenance Cartridge or even the actual Carriage Assembly which is preventing the Printheads from being
correctly capped.
The Maintenance Cartridge provides the capping for all of the Printheads and contains integrated Printhead
caps, wipers, cleaners and waste ink disposal.
The following illustration shows a the components that make up the Maintenance Cartridge.
To cap the Printheads:
●
The Carriage Assembly is first positioned over the Service Station.
●
The Maintenance Cartridge moves towards the back of the printer which allows Pin #1 and Pin #2 on the
Carriage Assembly to push against Rib #1 and Rib #2 to lift the caps into contact with the Printheads.
Improper capping of printheads will occur when any of the following elements break:
●
Rib #1 or Rib #2 of the Maintenance Cartridge,
●
Pin #1 or Pin #2 of the Carriage Assembly
You should also check all the other elements of the Maintenance Cartridge (plastic of each cap, and so on)
and make sure the vacuum ports are clear. If they are blocked, you can clear them with a T-8 Torx bit but you
should also check to make sure the Aerosol Fan is operating correctly.
ENWW Print-quality issues by symptom 169
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