User's Manual

Ink Supplies Troubleshooting
3-20
HP DesignJets 500, 510 and 800 Series Printers Service Manual
following example, Printheads 2, 3 and 4 were removed too early:
2 In order to check if the maximum recovery process
( Troubleshooting procedure ) was performed on each Printhead,
select the Printhead and press the Enter key.
As you can see in the above example, all the Printheads were
removed before the minimum life expectancy was reached (Ink
used is below 100%) and the maximum recovery action was not
performed (P/H cleaning code is 0, 1 or 2). Therefore the conclusion
is that the Printer is OK and the problem is that the customer is
replacing the Printheads too early. In this case advise the customer
to use the Troubleshooting procedure (refer to Page 6-4) to
determine if Printheads need replacing or not. Emphasize that
performing the
Troubleshooting procedure could recover the
Printhead if it is printing badly, therefore the User wouldn’t need to
buy new Printheads frequently.
Black P/H history
1 Installed - OK
2 Removed - too early
3 Removed - too early
4 Removed - too early
Select for more info:
5 Removed - Err 0025
These 3 Printheads were
removed from the Printer
before the minimum life
expectancy was reached.
PH Info - Black #2
Usage time: 135 days
P/H cleaning: 0
Error code:
Removal date: 20-Feb-02
Ink used: 260 cc (49%)
PH Info - Black #3
Usage time: 201 days
P/H cleaning: 0
Error code:
Removal date: 20-Sep-01
Ink used: 355 cc (67%)
PH Info - Black #4
Usage time: 65 days
P/H cleaning: 1
Error code:
Removal date: 24-Nov-00
Ink used: 127 cc (24%)
Black P/H history
1 Installed - OK
2 Removed - too early
3 Removed - too early
4 Removed - too early
Select for more info:
5 Removed - Err 0025
If consecutive Printheads
are being replaced too
early and the P/H cleaning
code for all of them is 2
Summary
or lower, the customer
should be advised to use
the Troubleshooting
procedure
before replacing
Printheads.