Canon LBP-2000 Service Manual Page 102
- Page / 222
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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2 - 63
CHAPTER 2
C. Self Test
The printer has the function to check the condition of the video controller by executing the self
diagnosis program of the video controller. This is called ‘self-test’ Self-test has two kinds of test;
power ON self test and power ON key sequence.
1 . Power ON self test
The power ON self test is executed following the procedures stated below every time the printer is
switched ON.
1) Tests the DRAM on the video controller. The error message is displayed on the LCD if any error
occurred.
2) Tests all program ROM, font ROM, and option ROM. The error message is displayed on the
LCD if any error occurred.
3) Tests inside of the CPU. The error message is displayed on the LCD if any error occurred.
4) Ends the self-test. The error is displayed on the operation panel if it is notified from the engine
controller.
5) After the completion of the self-test, the ‘READY’ message is displayed on the operation panel,
then PCL demo-page is printed automatically.
2 . Power ON key sequence
By pressing the specified keys simultaneously when turning the power ON, the specific function
can be executed.
a. Check sum functions
Turn the power ON while pressing the GO and Shift keys simultaneously (PPG Check Sum: ROM
bank 0) or GO and Value keys simultaneously (PS Check Sum: ROM bank 1).
The printer performs the check sum on the requested ROM bank with this function. The calcu-
lated Check Sum is displayed on the LCD.
b. Factory reset function (A4/LTR)
To reset the paper size default to A4, turn the power ON while pressing the Menu, Item, and Value
keys simultaneously.
To reset the paper size default to Letter, turn the power ON while pressing the Item, Value, and
Enter keys simultaneously.
The printer sets the default to the selected paper size (A4/LTR) with the function, resets it to
zero, if the page count is less than fifty counts.
c . Panel check function
The printer executes the operation panel diagnosis and the test sequence with the panel check
function. The Function has following sequences.
1) The printer is powered ON with Go and Enter keys both pressed, causing the ‘PANEL CHECK’
message to be displayed on the LCD.
2) Steps 3 through 8 below may be invoked in any order and/or multiple times.
3) If the Go key is pressed, the OnLine LED is lit and the ‘OPERATION CHECK’ message is dis-
played.
Releasing the key clears the LED and the message.
4) If the Shift key is pressed, the Job LED is lit and the ‘OPERATION CHECK’ message is dis-
played.
Releasing the key clears the LED and the message.
5) If the Menu key is pressed, the Alarm LED is lit and the ‘OPERATION CHECK’ message is
displayed. Releasing the key clears the LED and the message.
6) If the Item key is pressed, all the LEDs are lit and the left half of the LCD (8 columns/both
rows) is illuminated. Releasing the key clears the LEDs and the display.
Download Service Manual And Resetter Printer at http://printer1.blogspot.com
- FY8-13HQ-000 1
- Use of this manual should 2
- INTRODUCTION 3
- CONTENTS 4
- CHAPTER 1 PRODUCT OUTLINE 4
- CHAPTER 4 TROUBLESHOOTING 5
- CHAPTER 3 MECHANICAL SYSTEM 5
- PRODUCT OUTLINE 6
- I. FEATURES 7
- II. SPECIFICATIONS 8
- CHAPTER 1 10
- III. SAFETY 11
- IV. NAMES OF PARTS 12
- V. INSTALLATION 15
- VI. RELOCATING THE PRINTER 27
- VIII. USING THE PRINTER 31
- OUTLINE OF OPERATION 39
- I. BASIC OPERATION 40
- II. ENGINE CONTROL SYSTEM 46
- Developing DC 60
- Comparison 60
- High-voltage 62
- III. LASER/SCANNER SYSTEM 69
- 12.6 sec (approx.) 75
- IV. IMAGE FORMATION SYSTEM 76
- Photo conducting layer 77
- Substrate 77
- Surface potential (V) 79
- Photosensitive drum 79
- Primary charging roller 79
- Laser beam 80
- Dark area Light area 80
- Transfer charging roller 82
- Static eliminating brush 82
- V. PICKUP/FEEDING SYSTEM 85
- VI. VIDEO CONTROL SYSTEM 98
- CHAPTER 2 100
- VII. PAPER FEEDER 104
- CHAPTER 3 110
- MECHANICAL SYSTEM 110
- I. EXTERNALS AND CONTROLS 111
- III. DRIVE MECHANISMS 125
- IV. FEEDING MECHANISMS 127
- V. EXPOSURE MECHANISMS 135
- VI. CHARGING/DEVELOPING/ 136
- CLEANING MECHANISMS 136
- VII. FIXING SYSTEM 137
- [17][16] 140
- [10][11] 143
- VIII. PAPER FEEDER 144
- CHAPTER 4 151
- TROUBLESHOOTING 151
- I. INTRODUCTION 152
- Is the delivery 153
- Canon Inc., LBP-2000 Printer 158
- Configuration Page 158
- III. MEASURES AGAINST JAMS 168
- IV. FEEDING FAULTS 172
- V. MALFUNCTIONS 174
- [3][6][7] [4][5] 191
- APPENDIX 204
- I. GENERAL TIMING CHART 205
- II. GENERAL CIRCUIT DIAGRAM 207
- Paper feeder controller PCB 208
- III. LIST OF SIGNALS 209
- IV. MESSAGES TABLE 214
- CANON INC 222
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