HP Designjet T620 HP Designjet T620 Printer Series - Users Guide - Page 138

Corrective action, The Image Diagnostics Print

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And here is an example of the same printhead in a bad state: Print-quality issues Corrective action 1. Clean any faulty printheads (see Clean the printheads on page 139). Then reprint the Image Diagnostics Print to see whether the problem has been solved. 2. If the problem remains, clean the printheads again, and reprint the Image Diagnostics Print to see whether the problem has been solved. 3. If the problem remains, consider cleaning your printheads manually (see Clean the printheads on page 139). You could also try reprinting your current print job, in case it now prints satisfactorily. 4. If the problem remains, try cleaning the printhead drop detector. The printer normally notifies you when this is necessary, but it may be worth trying even if the printer has not suggested it. See Clean the printhead drop detector on page 139. 5. If the problem still remains, replace any persistently faulty printheads (see Handling ink cartridges and printheads on page 83), or contact HP Support (see Contact HP Support on page 156). ENWW The Image Diagnostics Print 135

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And here is an example of the same printhead in a bad state:
Corrective action
1.
Clean any faulty printheads (see
Clean the printheads
on page
139
). Then reprint the Image
Diagnostics Print to see whether the problem has been solved.
2.
If the problem remains, clean the printheads again, and reprint the Image Diagnostics Print to see
whether the problem has been solved.
3.
If the problem remains, consider cleaning your printheads manually (see
Clean the printheads
on page
139
). You could also try reprinting your current print job, in case it now prints satisfactorily.
4.
If the problem remains, try cleaning the printhead drop detector. The printer normally notifies you
when this is necessary, but it may be worth trying even if the printer has not suggested it. See
Clean the printhead drop detector
on page
139
.
5.
If the problem still remains, replace any persistently faulty printheads (see
Handling ink cartridges
and printheads
on page
83
), or contact HP Support (see
Contact HP Support
on page
156
).
ENWW
The Image Diagnostics Print
135
Print-quality issues