108
DP-1910F
4.3.14.
Poor Printed Copy Quality
START
Is the Test Pattern printout
in Service Mode 3 normal?
1. Replace the SC PCB.
2. Replace the Laser Unit (LSU).
3. Replace the Power Supply Unit.
4. Replace the Toner Cartridge .
END
Perform a receiving test
with the reference fax unit.
Is the printed copy correct?
Yes
No
Make a local copy.
No
Yes
Check the Transmission Block.
(CIS PCB, and SDR PCB)
Is the received copy correct?
1. Check the SC PCB.
2. Check the FXB PCB.
3. Check the Telephone Line Cable.
4. Replace the SC PCB.
Yes
No
Is a poor copy printed only
when receiving from a
specific transmitter?
Yes
No
Telephone line quality is poor.
(Refer to 4.5.)
The transmitting machine
may be defective.
Summary of Contents for e-studio191f
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