# Verification Items list

Automatically checks the printer internal state together with the initial operation and displays the mechanical states determined from the check as the results on the panel.

• Prerequisites for implementation
  Set the one paper to each paper tray.
• Items checked in auto check

1. Runaway check of various motors (Is there unintended operation?)
2. Connection state of consumables and other parts
3. Whether or not jammed paper remaining
4. Operation check of various motors
5. Check of various sensors
6. Initial operation
7. Judgment and display of mechanical state

1. Visually check that the CR action is smooth.
2. Check that the CR motor sound is not abnormal.

• PF Motor
  Check that the PF motor sound is not abnormal.
• SMAP phase sensor
  The inspection result is displayed on the screen after the check finishes.

Visually check that the CR unit and CR shaft are operating as follows.

• Check operation

1. Lift the CR shaft from the PG1 state (PG is at narrowest) to the PG7 state (PG is at widest) and then set it to the release state on the paper guides.
2. Cancel the release state on the paper guides and lower the CR shaft from PG7 to PG1.

• Lift Motor
  Check that the lift motor sound is not abnormal.
• Lift phase sensor
  Check that the display changes according to the inserted/pulled out state of the paper cassette.
  • Paper cassette inserted state
    The “Pull_Out_The Cassette” message appears on the panel LCD.
  • Paper cassette pulled out state
    The lift motor operation starts.

Check that the rear ASF solenoid is operating as follows.
(The check operation is executed in the following sequence.)

1. Check the operation of the rear ASF solenoid visually and by its sound.
2. Check that the LD roller rotates.
3. After the LD roller rotates, check from the sound that the motor drive one way clutch is idling due to the one way clutch.

1. Check that the solenoid is operating both visually and by its sound.
2. Whether or not the Intermediate Nip Release Sensor is switched ON/OFF normally is displayed on the panel LCD.

1. Retract the tray.
2. Check whether the tray is automatically extended when the setting is enabled.
3. Retract the tray again to check whether the tray is kept in the retracted state.

Manually switch the target sensor ON/OFF and check that the sensor state displayed on the panel LCD changes.
Regarding the detail of All sensor check,refer to “All Sensor Check Items All Sensor Check Items”.

Perform paper feeding/ejecting of single side printing from each cassette to check the state of all the cassette related sensors and sensors in the paper feed path.

Judge in the order given below.

1. Check the output values of the temperature and humidity sensors.
   <Error judgment guide>

• • • Broken wire : 0°C or lower
    • Short : 60°C or higher

1. Touch the temperature and humidity sensors with a hand and check the change of the output values.

Check the ink end sensor state with ink present.

Check that the sensor state on the panel LCD changes as a result of moving the ink end sensor lever.

Check the state of the ink leak sensor.