Brother HL 5370DW, Service Manual

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• Check the Solenoid.
Verify that the ejector solenoid is turned on when the regist front sensor is turned on.
Verify that the regist solenoid is turned on when the regist rear sensor is turned on.
Verify that the MP solenoid is turned on when the MP PE sensor is turned on.
Verify that the T1 solenoid is turned on when the Edge sensor is turned on.
• When the verification is completed, turn the power off.
10) Continuous Grid Pattern Print Mode
This mode is to continuously print a grid pattern with a serial number on it. The number
of grid pattern prints is displayed at the same time. The machine does not go back to
the ready state unless the power is turned off and on.
11) Fixing Unit Test Print
This is to print the following three patterns to check the fixing unit.
• Grid pattern with a serial number on it
• Gray pattern
• Black pattern
When this operation is completed, the machine automatically goes back to the waiting
Service mode state.
12) NV-RAM Value Dump Mode
This is to collectively print the present state of the NV-RAM of all machines. When this
operation is completed, the machine automatically goes back to the waiting Service
mode state.
13) RAM Check
This is to execute a stricter RAM check than a standard one.
<LED model>
If the result turns out unaccepted, it considers an error, and all LEDs blink. If it turns out
accepted, the
Status LED blinks. (Yellow
↔
Green)
<LCD model>
If the result turns out unaccepted, it considers an error, “
ERROR H63 ” is displayed. If it
turns out accepted the Data LED blinks.
The machine does not go back to the ready state unless the power is turned off and on.
14) QA Test print
This is to print four patterns to check the machine quality. When this operation is
completed, the machine automatically goes back to the waiting Service mode state.