Brother HL 5370DW, Service Manual

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7-1 Confidential
1. CONTROL PANEL
Various modes can be used if the power switch is set to ON while the [Go] button is held.
There are two types of modes: User Mode and Service Mode. Three types of lamp display
are used to indicate that present setting.
• Back cover/Toner/Drum/Paper LEDs are lighted at the same time to show that transfer to
thespecified mode is completed.
• Status LED is lighted to show that the [Go] button is held when the mode or function is
selected. Status LED is out if the [Go] button is not held.
• All LEDs are lighted for 1 second at the same time to show that initialization or change of
set values is completed.
1.1 List of service support functions
Front
cover
Press the [Go] button
when sifting the mode
Press the [Go] button
when selecting the
function
Function
Refer
to:
Close 0 times Once 1) Test Sample Page 7-4
Twice 2) Print Fonts 7-4
Three times 3) 1push Printing Recovery
Mode
7-4
Four times 4) Hex Dump Mode 7-4
Five times 1) Test Sample Page 7-4
Six times 5) Network Reset (APIPA: ON)
(HL-5340D is the print test)
7-4
Seven times 1) Test Sample Page 7-4
Eight times 6) Factory Reset 7-4
Nine times 1) Test Sample Page 7-4
Ten times 7) Settings Reset 7-4
11 times 1) Test Sample Page 7-4
12 times 8) PCB ONLY Mode 7-4
More than 13 times 1) Test Sample Page 7-4
Open Once Once 9) Factory Inspection Mode 7-7
Twice 10) Continuous Grid Pattern
Print Mode
7-8
Three times 11) Fixing Unit Test Print 7-8
Four times 12) NV-RAM Value Dump
Mode
7-8
Five times 13) RAM Check 7-8
Six times 14) QA Test print 7-8
Seven times 15) DX setting (ON/OFF) 7-9
Eight times 16) Paper Size Setting (A4/
Letter)
7-9
Nine times 8) PCB ONLY Mode 7-4
More than ten times Go back to Normal State