Kyocera DISCOVER FS-3830N, Руководство по обслуживанию

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2FP/2FY/2FR
1-5-16
(1) Completely blank
printout.
Causes
1. Defective developer
2. Defective transfer bias potential
3. Defective laser scanner unit
4. Defective main board
Causes Check procedures/corrective measures
1. Defective developer
2. Defective transfer bias potential
3. Defective laser scanner unit
4. Defective main board
Check that the developer is inserted correctly. See page 1-6-2.
Check that the toner on the magnet roller surface. See page 1-6-2.
Check the transfer bias output on the high voltage unit. This requires
removal of the left cover and the test equipment. Replace the high
voltage unit if high voltage potential is not available on the board.
See page 1-6-23.
The scanner components within the scanner may be disordered.
Replace the laser scanner unit. See page 1-6-35.
Defective laser scanner unit control circuit in the main board (KP-
1053*
1
/1033*
2
*
3
). See page 1-6-22.
Defective laser scanner unit control circuit in the main board (KP-
1053*
1 /1033* 2 * 3 ). See page 1-6-22.
(2) No image appears
(entirely black).
Causes
1. Defective main charger unit
2. Defective drum bias
3. Defective high voltage unit
4. Defective main board
Causes Check procedures/corrective measures
1. Defective main charger unit
2. Defective drum bias
3. Defective high voltage unit
4. Defective main board
Open the printer side cover and check that the drum unit is correctly
seated. Check for poor contact of the main charger terminal between
the main charger unit and the drum unit.
Make sure the bias from the high voltage unit correctly arrives at the
drum unit.
Check the high voltage output on the high voltage unit. Replace the
high voltage unit if high voltage potential is not available on the
board.
Defective laser scanner unit control circuit in the main board (KP-
1053*
1
/1033*
2
*
3
). See page 1-6-22.
* 1 : For FS-1920, * 2 : For FS-3820N, * 3 : For FS-3830N models
* 1 : For FS-1920, * 2 : For FS-3820N, * 3 : For FS-3830N models