HP B8C95AA Manual do Utilizador descarregar pdf (Página 14)

100

101

HP Designjet T Series — Service Manual 1-10

Print quality troubleshooting

The Image Quality Service Best Plot uses the Best Print Mode and is divided

in to three parts as follows:

 Diagnostic Part 1: Printhead Reliability Test. The purpose of this test is to

identify which Printhead is faulty.

 Diagnostic Part 2: Printhead Alignment Test. This test is designed to check

any color-to-color and bi-directional misalignment the printer may have.

 Diagnostic Part 3: Printheads and Paper Advance test. This test is

designed to check whether the Printheads and the Media Advance

Mechanism are working correctly.

2 Image Qualit

y Service Normal Plot. This plot is the same as the Image

Quality Service Best Plot but uses the Normal Print Mode.

3 Advanced Diagnostic Plot.

These tests provide more information of the IQ

defects that we could find in the Image Quality Service plot. For more

information, see

The Advanced Diagnostic Prints on page 1-15.

Considerations for Printing the Diagnostic Print

1 T

he IQ Diagnostic Print prints in A3 and B sizes so you must have media

loade

d (roll or sheet) that is this size or larger.

2 Use the same type of media that the customer was using when they found

the image qualit

y problem.

3 If the customer is using non-HP media and after the Image Quality Test you

ill have the same image quality problems, change to genuine HP media

and repeat the Image Quality Test.

If you do see problems with the Image Quality Test, continue with the

Adv

anced Diagnostic procedures which will help you diagnose the problem.

Printing the Diagnostic Print

1 In the

Service Utilities submenu, scroll to “Diagnostic Print” and press OK.

2 You will be given three options. Use the Arrow keys to make the selection

and press the OK key to start printing the required Diagnostic Print or to

enter the Advanced Diagnostics menu.

3 If you selected the Advanced Diagnostics Prints in the previous step, use the

Arrow keys to make the required selection Paper Advance, Printhead

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