B1 - B6: Feed Cassette Bottom Plate Motor Error - Mita DP-2800 Service Manual

5A2
B1 – B6: Feed cassette bottom plate motor error
Meaning
The feed cassette
bottom plate motor
won't revolve.
Change cassette to other
cassette. Turn printer power
off, then on.
Error still happens?
Connect ckt tester to pin 5
of KP-546/U1. Measure
voltage.
High level (>3.5 V)?
Replace KP-546.
6-18
Suggested causes
• Excessive torque on the motor
(activating the current protection
circuit)
• Stuck motor
• Defective feed board PU (U1)
• Defective motor driver circuit
(transistors) or over-current
detector circuit
B1 – B6
No
Yes
No
Yes
Corrective action
Replace the motor.
Check/replace S02088/
S02089 cables. Try
replacing with other
cassette to see if that
cassette
Replace KP-546.
Replace the cassette.
Replace motor. If not recovered,
S02088 between KP-546 and
cassette. If not recovered, replace
cassette or KP-546.
is faulty.