WorkCentre Pro 423/428
3-6
CHAPTER 3 IMAGE QUALITY TROUBLESHOOTING
3.2 Image Quality Specifications
3.2.3 Built-in Test Pattern
With DocuCentre230/280, the Built-in Test Pattern can be printed out. This is used for
analyzing each board on image quality problems caused by boards.
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Built-in Test Pattern printing out procedure
1. Enter the diag (C/E) mode.
2. Bring up the Diagnostic menu and press the Chain Function button.
3. Press the Chain button and enter 23 of the chain code.
4. Press the Function button and enter the specific function code of the Test Pattern.
5. Press the Start button.
6. Select Tray and enter number to copy.
7. Press the Start button.
8. Press the Close button.
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Type and output unit of Built-in Test Pattern (600dpi)
Chain
No.
Function
No.
Test Pattern
Output unit (board)
23
1
ANALOG ASIC TEST 3x3 Photo
IIT/IPS (SD)
23
6
Grid+Slanting lines (1BIT)
IIT/IPS (TIS)
23
7
Grid+Slanting lines (4BIT)
IIT/IPS (TIS)
23
8
Continuous gradation (Fast scan line 256
gradations) 3x3 Photo
IIT/IPS (TIS)
23
9
Continuous gradation (Slow scan line 256
gradations) 3x3 Photo
IIT/IPS (TIS)
23
10
Blank copies
MCU/SW PWB
23
11
Solid black copies
MCU/SW PWB
23
12
Grid pattern (1BIT)
MCU/SW PWB
23
13
Grid pattern (4BIT)
MCU/SW PWB
23
14
Grid+Slanting lines (1BIT)
MCU/SW PWB
23
15
Grid+Slanting lines (4BIT)
MCU/SW PWB
23
20
IOT TEST PRINT of black and white
horizontal streaks
MCU/SW PWB
23
21
Standard pattern with continuous gradation
in fast scan direction (256 gradations)
MCU/SW PWB
23
22
Dark pattern with continuous gradation in
fast scan direction (256 gradations)
MCU/SW PWB
23
23
Standard pattern with continuous gradation
in slow scan direction (256 gradations)
MCU/SW PWB
23
24
Dark pattern with continuous gradation in
slow scan direction (256 gradations)
MCU/SW PWB
23
25
Standard pattern with continuous gradation
in fast scan direction (64 gradations)
MCU/SW PWB
23
26
Dark pattern with continuous gradation in
fast scan direction (64 gradations)
MCU/SW PWB
23
27
Standard pattern with continuous gradation
in slow scan direction (64 gradations)
MCU/SW PWB
23
28
Dark pattern with continuous gradation in
slow scan direction (64 gradations)
MCU/SW PWB
23
30
Paper feed alignment adjustment pattern
MCU/SW PWB
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Type and output unit of Built-in Test Pattern (400dpi)
Chain
No.
Function
No.
Test Pattern
Output unit (board)
24
10
Blank copies
MCU/SW PWB
24
11
Solid black copies
MCU/SW PWB
24
12
Grid pattern (1BIT)
MCU/SW PWB
24
13
Grid pattern (4BIT)
MCU/SW PWB
24
14
Grid+Slanting lines (1BIT)
MCU/SW PWB
24
15
Grid+Slanting lines (4BIT)
MCU/SW PWB
24
20
IOT TEST PRINT of black and white
horizontal streaks
MCU/SW PWB
24
21
Standard pattern with continuous gradation
in fast scan direction (256 gradations)
MCU/SW PWB
24
22
Dark pattern with continuous gradation in
fast scan direction (256 gradations)
MCU/SW PWB
24
23
Standard pattern with continuous gradation
in slow scan direction (256 gradations)
MCU/SW PWB
24
24
Dark pattern with continuous gradation in
slow scan direction (256 gradations)
MCU/SW PWB
24
25
Standard pattern with continuous gradation
in fast scan direction (64 gradations)
MCU/SW PWB
24
26
Dark pattern with continuous gradation in
fast scan direction (64 gradations)
MCU/SW PWB
24
27
Standard pattern with continuous gradation
in slow scan direction (64 gradations)
MCU/SW PWB
24
28
Dark pattern with continuous gradation in
slow scan direction (64 gradations)
MCU/SW PWB
24
30
Paper feed alignment adjustment pattern
MCU/SW PWB
Summary of Contents for WorkCentre Pro 423
Page 2: ......
Page 3: ...WorkCentre Pro 423 428 6HUYLFH 0DQXDO...
Page 6: ......
Page 8: ......
Page 9: ...INTRODUCTION...
Page 10: ......
Page 24: ...WorkCentre 423 428 03 02 INTRODUCTION 14 7 Translation of Warnings...
Page 25: ...CHAPTER 1 SERVICE CALL PROCEDURE...
Page 26: ......
Page 28: ...WorkCentre Pro 423 428 1 2 CHAPTER 1 SERVICE CALL PROCEDURE 03 02 1 1 Trimming...
Page 31: ...CHAPTER 2 TROUBLESHOOTING...
Page 32: ......
Page 76: ...WorkCentre Pro 423 428 2 44 CHAPTER 2 TROUBLESHOOTING 03 02 2 3 Level 2 Troubleshooting...
Page 243: ...CHAPTER 3 IMAGE QUALITY TROUBLESHOOTING...
Page 244: ......
Page 273: ...CHAPTER 4 DISASSEMBLY ASSEMBLY AND ADJUSTMENT...
Page 274: ......
Page 329: ...CHAPTER 5 PARTS LIST...
Page 330: ......
Page 415: ...03 02 5 2 Parts List WorkCentre Pro 423 428 5 85 CHAPTER 5 PARTS LIST...
Page 416: ...CHAPTER 6 GENERAL...
Page 417: ......
Page 456: ...CHAPTER 7 ELECTRICAL WIRING DIAGRAMS...
Page 457: ......
Page 476: ...CHAPTER 8 ACCESSORIES...
Page 477: ......
Page 535: ...WorkCentre Pro 423 428 8 58 CHAPTER 8 ACCESSORIES 03 02 8 22 Stamp Kit Red...
Page 536: ...CHAPTER 9 BSD Block Schematic Diagram...
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