Toshiba e-studio191f Service Manual page 108

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