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5-8
Confidential
1.4.4 Operational check of LCD (Function code 12)
<Function>
This function allows you to check whether the LCD on the control panel works normally.
<Operating procedure>
(1) Press the
or
button to display “MAINTENANCE 12” on the LCD in the initial state of
the maintenance mode. Then, press the
OK
button.
(2) Each time you press the
Go
button, the LCD cycles through the displays as shown below.
(3) Press
Cancel
button in any process of the display cycle. The printer returns to the initial
state of the maintenance mode.
<Display 1>
Backlight
LCD
Data LED
Error LED
: OFF
: Display of all dots
: Green blinking
: Red blinking
<Display 2>
Backlight
LCD
Data LED
Error LED
: OFF
: Display of 16 dots in
2 lines
: Green blinking
: Red blinking
<Display 3>
Backlight
LCD
Data LED
Error LED
: OFF
: Display of no dots
: Green blinking
: Red blinking
<Display 4>
Backlight
LCD
Data LED
Error LED
: ON
: Display of no dots
: Green blinking
: Red blinking
Fig. 5-3
Display 2
Display 1
Display 4
Display 3
Summary of Contents for HL-4140CN
Page 19: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 29: ...Confidential CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 145: ...Confidential CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...
Page 169: ...3 21 Confidential 8 DISASSEMBLY FLOW Disassembly Re Assembly second ...
Page 296: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 311: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 336: ...5 23 Confidential Inter color position alignment adjustment chart Fig 5 8 ...
Page 343: ...5 30 Confidential Fig 5 11 ...
Page 345: ...5 32 Confidential Fig 5 12 First side Second side ...
Page 347: ...5 34 Confidential Color test pattern Fig 5 13 MCYK Y C K M YCMK_ _A ...
Page 354: ...5 41 Confidential Maintenance information Fig 5 14 ...
Page 382: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 384: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram 1 3 ...
Page 385: ...6 2 Confidential High voltage Power Supply PCB Circuit Diagram 2 3 ...
Page 386: ...6 3 Confidential High voltage Power Supply PCB Circuit Diagram 3 3 ...
Page 387: ...6 4 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 388: ...6 5 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 389: ...6 6 Confidential 2 WIRING DIAGRAM Wiring Diagram ...
Page 390: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 424: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 428: ...Confidential APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER ...
Page 432: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...