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Konica-Minolta bizhub 3320

Service Mode. Diagnostics menu. Duplex Tests

Quick Test

The Duplex quick test determines if the top margin at the back of a duplexed page is set correctly. This test prints a duplexed version of the Quick test page that can be used to adjust the duplex top margin. Use either Letter or A4 paper.

To run the Duplex quick test:

  1. From the Diagnostics menu, navigate to:
    Duplex Tests >Quick Test
  2. Choose any of the following:
    - Single—Prints a single Quick test page.
    - Continuous—Continuously prints the Quick test pages until ✖ is pressed.
    The printer attempts to print the Quick test page from the default paper source. If the default paper source supports only envelopes, then the page is printed from Tray 1.
    The Quick test page contains the following information:
    - General printer information, including current page count, installed memory, processor speed, serial number, engine ID, and controller board ID
    - Printer margin settings
    - Printer revision levels
    - Alignment diamonds at the top, bottom, and each side
    - Horizontal lines for skew adjustment
  3. Check the Quick test page for the correct offset between the placement of the first scan line on the front and back side of a duplexed sheet.
  4. If adjustment is necessary, the top margin in the Registration menu must be adjusted first. The duplex top margin offset may be adjusted next. A positive offset moves the text down the page and widens the top margin, while a negative offset moves the text up the page and narrows the top margin.

Top Margin

This setting controls the offset between the placement of the first scan line on the front and back side of a duplex sheet.

Note: If adjustment is necessary, the top margin in the Registration menu must be adjusted first. The duplex top margin may be adjusted next.

To adjust this setting:

  1. From the Diagnostics menu, navigate to:
    Duplex tests >Top Margin
  2. Change the margin values.
    Changing the value by 1 unit moves the margin by 1/100 in. A positive value moves the text down the page and widens the top margin. A negative value moves the text up the page and narrows the top margin.
  3. Press [OK] to save the desired margin value.

Left Margin

This setting allows the user to shift the position of the left margin of the back side of a duplexed page to the left or right. The default margin is 1/4 in.

To adjust this setting:

  1. From the Diagnostics menu, navigate to:
    Duplex Tests >Left Margin
  2. Change the margin value.
    Each increment corresponds to 4 pels at 600 dpi (0.00666 in. or 0.1693 mm). A more positive offset moves the margin to the right, and a more negative offset moves the margin to the left.
  3. Press [OK] to save the desired margin value.

Sensor Test

Use this test to determine if the duplex sensor and switches are working properly.
To run this test:

  1. From the Diagnostics menu, navigate to:
    Duplex Tests >Sensor Test
  2. Testing… appears while the printer is verifying the state of the sensor.
    The control panel displays the current state of the sensor.
  3. Manually actuate the sensor to make it toggle between Open and Closed. If the sensor does not toggle, then it is malfunctioning.
  4. Press ✖ to exit the test.

Duplex Feed 1

This test feeds a blank sheet of paper from Tray 1 to the duplex paper stop position 1. This test can be run using any of the supported paper sizes.
To run this test:

  1. From the Diagnostics menu, navigate to:
    Duplex Tests >Duplex Feed 1
    The power indicator blinks while the paper is feeding, and Duplex Feed 1 Feeding… appears. This test cannot be canceled. The panel displays Duplex Feed 1 Clear Paper when the paper reaches the duplex paper stop position 1.
  2. Remove the sheet of paper from the duplex unit, and shut the duplex door.
  3. Press ✖ to clear the message.
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