Kyocera TASKalfa 3051ci, Service Manual

Page: 115 / 317

2L6/2N6/2N5/2N4
1-4-114
5101 Main high-voltage error K
Measure the inflowing current
when Vpp is varied in 3 steps
and verify if the difference of
the currents of 0 and step 2 is
less than 42 (51 if lower high-
voltage board).
Drum unit 1. Execute U030 Belt Mean Drum Motor
and check that the drum motor can
rotate (see page 1-3-34).
2. Confirm that the drum or the drum screw
can rotate.
3. Check that the discharger lamp is
properly connected.
Charger roller unit 1. Check that the high-voltage contacts are
not distorted or adhered with foreign
objects.
2. Reinstall the chrager roller unit.Or,
replace the charger roller unit (see page
1-5-59).
High voltage PWB
1 1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
High voltage PWB 1(YC4)
*1
,(YC3)
*2
and
Engine PWB (YC17)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the High voltage PWB 1 (see
page 1-5-88).
*1:45 ppm model/ 55ppm model
*2:30ppm model/ 35ppm model
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
Code Contents Related parts
Check procedures/
corrective measures