Other Fax Problems - Xerox Phaser 6600 Service Manual

Error Troubleshooting
Receive Fault
Problem with printing quality, such as corrupt image, lines in image, top/bottom cut off.
• If copy function is normal
Cause: Degraded telephone line connection caused by noise, etc.; or a fault in sending FAX's
scanner.
Corrective Action: Determine whether fault is in telephone line or at sending FAX by trying copy
function at receiving FAX.
Notes:
• If the telephone line condition is degraded, white horizontal lines, missing rows, and/or
cut-off top/bottom may occur.
• Branch connections or incoming call (call waiting) may also cause image corruption.
• If copy function is faulty
Cause: Dirt or fault in printer.
Corrective Action: Clean all parts of printer or repair printer.
Does not emit response signal
Cause: Incorrect connection. Incorrect setup of dial type, line type, and/or reception mode.
Corrective Action: Correct the connection. Reset the dial type, line type, and/or receive mode to
correct settings.
Note: If a call is made to the FAX from a telephone, and the FAX does not emit its ringing sound, a
telephone line fault is highly probable.

Other FAX Problems

Branch Connection (Parallel Connection)
During FAX reception, if the handset of another telephone on a branch connection is lifted, the
received image may be corrupted or a transmission error may occur. Branch connection may also
interfere with caller identification, call waiting, the receiving operation of connected telephones.
Call Waiting
If a call comes in during FAX sending/reception, as with branch connections the image may be
corrupted.
DSL (Digital Subscriber Line)
DSL, a high-speed digital transmission method using existing telephone lines, has several types. These
include ADSL (Asymmetric Digital Subscriber Line) with differing upstream and downstream
transmission speeds, SDSL (Symmetric Digital Subscriber Line) with symmetrical upstream and
downstream transmission speeds, and VDSL (Very high bit rate Digital Subscriber Line) which features
higher speed. However, because the line is used for both voice and data transmission, various problems
may occur, such as noise during spoken conversation, low sound volume, and mis-dialing. Replacing the
splitter may improve the situation.
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Service Manual
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