Xerox Phaser 6121MFP Service Manual page 214

General Troubleshooting
Noise
Printer Doesn't Go Into Off-Hook State
4-20
If electronic equipment (television, computer, microwave, etc.) or devices equipped
with motors are located near a Fax, noise from the electronic equipment may
degrade the line condition.
Also, a telephone line, acting as an antenna, may absorb electric waves generated
from wireless or broadcasting equipment.
Because Fax data is audio data, the line quality affects the quality/stability of
image data as well as that of conversation.
Use the following procedure if the printer doesn't go into Off-Hook state when you
pick up the phone.
Initial Actions
• Cycle printer power
• If the problem persists, follow the procedure.
Troubleshooting Procedure Table
Step Action and Questions
1 Is the handset broken?
2
Try each of the following settings for
Soft SW16(6-8) and check if the
problem is corrected:
000
001
010
101
Is the problem still occurring?
3 Check the Fax Control Board for correct
installation and reseat it.
Is the problem still occurring?
4 Replace the Fax Control Board.
Is the problem still occurring?
Yes No
Replace the Go to step 2.
handset.
Go to step 3. Complete.
Go to step 4. Complete.
Have the input Complete.
current from
the phone line
checked by a
qualified
professional.
Phaser 6121MFP Service Manual