M126/M127/M128 6-6 SM
6.3.3 SCAN / FAX / COPY SYMPTOM TABLE
Symptom Action
840.xx scanner error
p.6-86 "840.xx Service Check"
ADF won’t duplex (Duplex ADF only)
p.6-98 "ADF Duplex Service Check"
ADF skew
p.6-96 "ADF Feed Errors Service Check"
Multiple pages feed into ADF
Documents won’t feed into ADF
Printer picks letter size paper on a legal
size scan
This is a symptom of a failed paper length
sensor.
Scanner makes buzzing noise on startup or
during a scan.
p.6-91 "Flatbed Home Position Service
Check"
Document feeds, but jams in ADF.
p.6-94 "ADF Paper Jam Service Check"
Black streaks on scans
p.6-93 "ADF Streak Service Check"
Blank page
p.6-89 "Black or Blank Page Copy
Service Check"
Black page
No dial tone
p.6-99 "Modem / Fax Card Service
Check"
Machine dials a number but fails to make a
connection with another fax machine.
The other fax machine may be turned off.
Ask the fax recipient to check their
machine.
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