4-18
Phaser 6121MFP Service Manual
General Troubleshooting
Poor Image Quality in Received Fax Troubleshooting
8
Check that the phone line from the
wall is connected to the Fax LINE
connector.
If the phone jack is correctly install,
you can hear dial tone when press
down the “On hook” key.
Is the telephone line from the wall
connected to the LINE connector?
Go to step 9.
Connect the
phone line to
the LINE
connector. If
the problem
persists, go to
step 9.
9
Test your phone line with a telephone.
If the phone number cannot be called,
the problem is with your phone line.
Is your telephone line operating
correctly?
Complete.
Call your
telephone
company for
line repair.
Troubleshooting Procedure Table
Step Action and Questions
Yes
No
1
Is the image quality of copies made at
the printer also poor?
Replace the
Imaging Unit
(page 8-6).
Go to step 2.
2
Is the original glass of transmitting
machine dirty?
NOTE
The poor image quality of received fax
may be caused by the TX machine.
Have the
sender clean
the
transmitting
machines
glass, and then
resend the fax.
If the problem
persists, go to
step 3.
Go to step 3.
3
Have the sender verify that the
sending machine is set to a resolution
appropriate for the document that is
being transmitted.
NOTE
The poor image quality of received fax
may be caused by the TX machine.
Complete.
Troubleshooting Procedure Table (continued)
Step Action and Questions
Yes
No
Summary of Contents for PHASER 6121MFP
Page 1: ...Phaser 6121MFP Multi Function Printer Phaser 6121MFP Service Manual...
Page 2: ......
Page 12: ...x Phaser 6121MFP Service Manual Contents...
Page 22: ...xx Phaser 6121MFP Service Manual...
Page 42: ...1 20 Phaser 6121MFP Service Manual General Information...
Page 106: ...2 64 Phaser 6121MFP Service Manual Theory of Operation...
Page 109: ...Phaser 6121MFP Service Manual 3 3 Error Messages and Codes s6121mfp 372...
Page 194: ...3 88 Phaser 6121MFP Service Manual Error Messages and Codes...
Page 306: ...6 44 Phaser 6121MFP Service Manual Adjustments and Calibrations...
Page 405: ...Phaser 6121MFP Service Manual 8 85 Service Parts Disassembly 3 Remove the spring s6121mfp 255...
Page 432: ...8 112 Phaser 6121MFP Service Manual Service Parts Disassembly...
Page 437: ...Phaser 6121MFP Service Manual 9 5 Parts List...
Page 477: ...Phaser 6121MFP Service Manual 9 45 Parts List...
Page 488: ...9 56 Phaser 6121MFP Service Manual Parts List...
Page 489: ...10 Chapter Wiring In this chapter Plug Jack Designations and Locator Diagrams Wiring Diagrams...
Page 530: ...1 6 Phaser 6121MFP Service Manual Index...
Page 531: ......