Minolta Di450 Service Manual page 214

• Paper is stopped at the Vertical Transport Rollers.
Step
1 Vertical Transport Rollers are dirty with paper
dust, deformed, or worn.
2 Paper take-up guide plate or vertical transport
guide plate is dirty or deformed.
3 Vertical Transport Motor turns when the Start
key is pressed with the cabinet selected.
4 rd
I/O check for 3
operation when the 3
voltage across PJ9A-11 on Control Board and
GND is DC5V when the sensor is unblocked
and DC0V when the sensor is blocked.
5
th
I/O check for 4
operation when the 4
age across PJ5A-2A on Control Board and
GND is DC5V when the sensor is unblocked
and DC0V when the sensor is blocked.
6 I/O check for Paper Leading Edge Sensor 3
operation when the 3
voltage across PJ9A-5 on Control Board and
GND is DC5V when the sensor is unblocked
and DC0V when the sensor is blocked.
7 I/O check for Paper Leading Edge Sensor 4
operation when the 4
age across PJ9A-8 on Control Board and GND
is DC5V when the sensor is unblocked and
DC0V when the sensor is blocked.
Check
Drawer Paper Take-Up Sensor
rd
Drawer is used: the
Drawer Paper Take-Up Sensor
th
Drawer is used: the volt-
rd
Drawer is used: the
th
Drawer is used: the volt-
T-23
Result Action
YES Clean or change.
YES Clean, correct, or change.
NO Correct drive coupling.
Change motor or Control
Board.
Change Master Board.
YES Change Control Board or
Master Board.
NO Correct actuator.
Change sensor.
YES Change Control Board or
Master Board.
NO Correct actuator.
Change sensor.
YES Change Control Board or
Master Board.
NO Correct actuator.
Change sensor.
YES Change Control Board or
Master Board.
NO Correct actuator.
Change sensor.