Brother ADS-2000 Service Manual page 24

4.1.9 The page counter for the separation pad has reached the limit.
The page counters for both the separation pad and
the pick-up roller have reached the limit.
The page counter for the pick-up roller has reached the limit. ................. 2-16
4.1.10 The front cover sensor detected an open front cover in the ready state.
The front cover sensor detected an open front cover during scanning.......... 2-16
4.1.11 Color parameter in the ROM does not match
the first side or second side CIS unit........................................................ 2-16
4.1.12 A scanning error occurred while scanning the image............................... 2-16
4.1.13 The voltage value was below the lower limit during scanning.
The white level does not increase during scanning
although the light intensity was increased.
A white level not within the standard was scanned when the maintenance mode
function "Acquire white level data and set CIS scan area" was executed.
A black level not within the standard was scanned when the maintenance mode
function "Acquire white level data and set CIS scan area" was executed. ............ 2-16
4.2 Troubleshooting for Image Defects...................................................................... 2-17
4.2.1 Defect examples....................................................................................... 2-17
4.2.2 Troubleshooting according to image defect ............................................. 2-17
4.3 Troubleshooting for Document Paper Feeding Problems.................................... 2-20
4.3.1 Multiple documents are fed ...................................................................... 2-20
4.3.2 Document becomes wrinkled ................................................................... 2-20
4.3.3 Document becomes jammed.................................................................... 2-21
4.3.4 Document is not picked up and fed .......................................................... 2-22
4.4 Troubleshooting for Software Problems .............................................................. 2-23
4.4.1 Does not respond to operation from a computer...................................... 2-23
4.4.2 Cannot read data...................................................................................... 2-23
4.5 Troubleshooting for Control Panel Problems....................................................... 2-24
4.5.1 Nothing is displayed on the LED .............................................................. 2-24
4.5.2 Control panel is inoperable....................................................................... 2-24
4.5.3 Only specified buttons are inoperable ...................................................... 2-24
4.6 Troubleshooting for Other Problems.................................................................... 2-25
4.6.1 Machine is not turned ON......................................................................... 2-25
4.6.2 Unusual noise is generated from the machine ......................................... 2-25
4.6.3 Data cannot be saved in the USB memory .............................................. 2-25
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