Panasonic 990 - Manual (Page 140)

Troubleshooting
Mode Symptom Cause / Action page
Print Copy Quality Vertical lines printing
on the received
document Print out a Journal report {e.g. FUNCTION, 6, 1 , SET and 1)
and check quality to make sure whether your machine has
trouble.
128
If Journal report quality is OK, your machine has no problem,
report to the sending party that they have a problem.If copy is
NG, replace the Toner Cartridge.
18
Fuzzy print 1. Make sure you are using the correct paper for the best
possible print quality.
2. Try reversing the recording paper to the other side.
155
Missing dots or lines/
inconsistent darkness
within print
1. Make sure you are using the correct paper for the best
possible print quality.
2. Replace the Toner Cartridge.
155
18
Fading print Your Toner Cartridge may be running out of toner. Replace
the Toner Cartridge.
18
Faint print You may need to choose a different paper for the best
possible print quality.
155
Intermittent partial or
total black print.
Your Optional Page Memory setting value is set larger than
the actual DRAM Memory Card installed. Make sure Fax
Parameter 60 is set to the DRAM Memory Card Size.
38
Communication No dial tone 1. Check the connection of the telephone line.
2. Check the telephone line.
151
No auto answer 1. Check the connection of the telephone line.
2. Check the Reception mode setting.
3. If the Fax Parameter No. 13 (AUTO JOURNAL PRINT) is
set to "Valid" {default setting) and the machine is printing
the received document from memory, which also happens
to be the 100th transaction, the machine will not auto
answer until the Transaction Journal completes printing.
151
61
Cannot transmit or
receive An information code will be shown on the display. Refer to the
information code table to find out the trouble.
141
No Unit Operation No unit operation To reset the machine, turn-off the Power Switch for a few
seconds then turn it on again.
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140