Brother International HL-2600CN Service Manual - Page 128

2.2 Line Test Mode This mode tests the following items; Item LCD TEST LED TEST SW TEST SENSOR TEST RAM SIZE TEST TRAY 1 CHECK TRAY 2 CHECK FLASH CARD-R/W TEST Self-test Description Displays the checker pattern Checks that all LEDs are on / off. Checks that all buttons work correctly. Checks that all sensors work correctly. Displays the NVRAM size Displays the paper size of the upper cassette (Tray 1). Displays the paper size of the lower cassette (Tray 2). Checks the compact flash card. Note: It is possible to skip the test and proceed with the next test by pressing the Go button. If any errors occur during the following procedures, an error message appears on the LCD. By pressing the Go button, it is possible to proceed with the test. 1) Turn on the power while holding down the + and - buttons. The following message appears. LINE TEST 2) Press the Go button to implement the LCD TEST. All columns of the LCD are turned on as shown below and also the LEDs are all turned on. Check that the LCDs are all displayed correctly and none of the dots have dropped. Also, check that the LEDs are all on. All of the LCDs are displayed at a time. V-3