Improve fax image quality, Check the scanner glass for dirt and smudges, Check the send-fax resolution settings – HP Color LaserJet Pro MFP M476 series User Manual
Page 128
Improve fax image quality
If the product is having image quality problems, try the following solutions in the order presented to resolve
the issue.
●
Check the scanner glass for dirt and smudges
●
Check the send-fax resolution settings
●
Check the error-correction settings
●
●
Send to a different fax machine
●
Check the sender's fax machine
Try these few simple steps first:
●
Use the flatbed scanner rather than the document feeder.
●
Use high-quality originals.
●
When using the document feeder, load the original document into the feeder correctly, using the paper
guides, to avoid unclear or skewed images.
If the problem still exists, try these additional solutions. If they do not fix the problem, see “Improve print
quality” for further solutions.
Check the scanner glass for dirt and smudges
Over time, specks of debris might collect on the scanner glass and white plastic backing, which can affect
performance. Use the following procedure to clean the scanner.
1.
Press the power button to turn the product off, and then disconnect the power cable from the electrical
outlet.
2.
Open the scanner lid.
3.
Clean the scanner glass and the white plastic backing underneath the scanner lid with a soft cloth or
sponge that has been moistened with nonabrasive glass cleaner.
CAUTION:
Do not use abrasives, acetone, benzene, ammonia, ethyl alcohol, or carbon tetrachloride on
any part of the product; these can damage the product. Do not place liquids directly on the glass or
platen. They might seep and damage the product.
4.
Dry the glass and white plastic parts with a chamois or a cellulose sponge to prevent spotting.
5.
Connect the power cable to an outlet, and then press the power button to turn the product on.
Check the send-fax resolution settings
If the product was unable to send a fax because the receiving fax machine did not answer or was busy, the
product attempts to redial based on the redial-on-busy, redial-on-no-answer, and redial-on-communication-
error options.
1.
From the Home screen on the product control panel, touch the Setup button.
2.
Touch the
Fax Setup
menu.
118 Chapter 9 Solve problems
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