HP Color LaserJet Pro MFP M177fw - Manual (Page 103)

Improve fax image quality
● Check the scanner glass for dirt or smudges
● Check the send-fax resolution setting
● Check the lightness/darkness setting
● Check the Error Correction setting
● Check the Fit-to-Page setting
● Clean the pickup rollers and separation pad in the document feeder
● Send to a different fax machine
● Check the sender's fax machine
Check the scanner glass for dirt or 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, the document feeder strips, and the white plastic backing 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. Close the scanner lid.
6. Connect the power cable to an outlet, and then press the power button to turn the product on.
Check the send-fax resolution setting
1. From the Home screen on the product control panel, touch the Setup button.
2. Select Fax Setup .
3. Select Advanced Setup , and then select Fax Resolution .
4. Select the desired resolution setting, and then touch OK .
Check the lightness/darkness setting
If the fax output is too light or too dark, check the lightness/darkness setting to make sure it is appropriate
for the fax job.
ENWW Improve fax image quality 93