●From the control panel, change the Fax Speed option to the Medium (V.17) setting or Slow (V.29) setting.
a.Touch the Setup 
button.
b.Open the Fax Setup menu.
c.Open the Advanced Setup menu.
d.Open the Fax Speed menu.
e.Select the correct setting.
●Turn off the Error Correction option.
a.Touch the Setup 
button.
b.Open the Service menu.
c.Open the Fax Service menu.
d.Open the Error Correction menu.
e.Touch the Off setting.
NOTE: Turning off the Error Correction option can reduce image quality.
●If the error persists, contact HP. See www.hp.com/go/LJColorMFPM375 or www.hp.com/go/ LJColorMFPM475 or the support flyer that came in the product box.
No dial tone.
●Make sure that the telephone cord is plugged into the correct port on the product.
●Make sure that the telephone cord from the product is plugged directly into the wall telephone jack.
●Check for a dial tone on the phone line by using the Start Fax button.
●Unplug the product telephone cord from the wall, connect a telephone, and try making a voice call.
●Unplug the telephone cord from both the product and the wall and replug the cord.
●Make sure that you are using the telephone cord that came with the product.
●Connect the product phone cord into a jack for another phone line.
●Check the phone line by using the Run Fax Test option from the Service menu on the control panel.
a.Touch the Setup 
button.
b.Open the Service menu.
c.Open the Fax Service menu.
d.Select the Run Fax Test item.
228 Chapter 2 Solve problems | ENWW |