Brother MFC-P2000 - B/W Laser Printer Service Manual page 105

4) When the document front sensor is turned on during the test 3) status, the flashing
Photo lamp comes on.
5) When the document front sensor is turned off during the test 4) status, the printer
returns to the test 3) status.
6) When the document rear sensor is turned on during the test 3) status, all of the seven
segments on the LED are ON (it indicates '8').
7) When the document rear sensor is turned off during the test 6) status, the printer
returns to the test 3) status.
8) When the Stop key is pressed during the test 3) status, the printer returns to the initial
status of Test Mode A ('A' is shown on the LED).
Note:
If even one of the four keys cannot be recognized, the printer does not return to the test
3) status.
A-2 Line-Feeding Test
The line-feeding test checks if there is no double-feeding or non-feeding and if the
document front/rear sensors work correctly. The document is fed without being scanned
in this test mode.
The operation of this test is as follows;
1) When the printer enters this test mode, 'L' is shown on the LED.
2) Set a multi page document into the ADF, then '0' is shown on the LED.
3) When the Copy key is pressed, '1' flashes on the LED, then the printer starts line-
feeding.
4) After finishing line-feeding on the first page, '1' is shown without flashing.
5) The number on the LED is incremented after each page is line-fed. After finishing this
test, the total number of pages line-fed is shown on the LED.
6) When the Stop key is pressed, the test mode is finished and returns to the initial
status of the Test Mode A ('A' is shown on the LED).
Note:


The 10th to 15th pages are indicated using the hexadecimal value, such as 'A', 'b', 'C',
'd', 'E', 'F'. The 16th or later page is indicated as 'F'.


If a feeding error such as a paper jam occurs, 'E' flashes on the LED.
If the Stop key is pressed to clear the error, 'L' is shown on the LED when there is no
document in the ADF, or '0' is shown when there is document. After the document is
removed from the ADF, 'L' is shown.


When a paper jam occurs during line-feeding, press the Stop key to stop line-feeding.
Then, 'E' flashes on the LED.
When the Stop key is pressed while the document is on the document front sensor
and the printer is stopping line-feeding, the printer ejects all documents in the ADF,
then returns to the initial status of the line-feeding test mode ('L' is shown).
IV-36