WorkCentre Pro 423/428
2-152
CHAPTER 2 TROUBLESHOOTING
03/02
How to use the Diagnostic C/E Mode
Chain
Function
Item
Min. value
Default
Max. value
Amount of
Change
Adjustment
Remarks
case of mechanical fault)
20
30
Smoothing enabled/disabled
0
1
1
0:disabled 1:enabled
20
31
Make Edge Count Result Available
0
63
255
20
32
Edge Count Threshold (At Copying)
0
111
255
20
33
Black Pixel Count
0
101
255
20
34
Operational Offset Value
0
102
255
0-99:Positive 100-255:Negative
20
35
Enable/Disable Dot Area Control
0
1
1
0:disabled 1:enabled
20
36
Enable/Disable Criteria 1
0
1
1
0:disabled 1:enabled
20
37
Enable/Disable Criteria 2
0
1
1
0:disabled 1:enabled
20
38
Enable/Disable Criteria 3
0
1
1
0:disabled 1:enabled
20
39
Edge Count Threshold (Printer/FAX)
0
90
255
20
40
Multiplication Factor for Coefficient of Error 0FH in 16-
character Mode
0
6
8
20
41
LEAD REGI Adjustment TRAY1
0
8
16
0.26mm
As the adj. value is increased, the image
appears later.
20
42
LEAD REGI Adjustment TRAY2-4
0
8
16
0.26mm
As the adj. value is increased, the image
appears later.
20
43
LEAD REGI Adjustment MSI
0
8
16
0.26mm
As the adj. value is increased, the image
appears later.
20
44
LEAD REGI Adjustment DUP
0
8
16
0.26mm
As the adj. value is increased, the image
appears later.
20
45
REGI LOOP TIMER ALL TRAY
40
47
57
0.26mm
Increasing the value enlarges the loop.
20
46
REGI LOOP TIMER TRAY1
0
15
15
0.26mm
Increasing the value enlarges the loop.
20
47
REGI LOOP TIMER TRAY2-4
0
15
15
0.26mm
Increasing the value enlarges the loop.
20
48
REGI LOOP TIMER MSI
0
15
15
0.26mm
Increasing the value enlarges the loop.
20
49
REGI LOOP TIMER DUP
0
15
15
0.26sec
Increasing the value enlarges the loop.
20
50
REGI CLUTCH OFF TIMER ALL TRAY
35
60
63
0.002 sec.
20
51
INVERT TIMING ALL TRAY
46
60
74
10ms
Increasing the value delays the reversing
position by 1.9 mm.
20
58
MAIN MOTOR KI GAIN
1
1
99
20
59
MAIN MOTOR KP GAIN
1
4
99
20
60
Initializing NVM for the IOT adjustment
-
-
-
-
Ch6,9,20
20
64
Initializing NVM for the IIT/IPS adjustment
-
-
-
-
Ch21
20
66
Initializing NVM for mode setting
-
-
-
-
Ch50
20
67
Initializing all NVMs for the IOT
-
-
-
-
Initialize Ch6, 9, 12, 20, 23, 25, 28, and 50
(including Ch15 for new NVM) and clear job
memory, DC HFSI counter (excluding print
count), fault history and counter (excluding
NVM for MF), and also unused areas (not
clearing MC model code and serial number
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...
Page 537: ......
Page 541: ......
Page 542: ......
Page 543: ......
Page 544: ......
Page 545: ......
Page 546: ......
Page 547: ......
Page 548: ......
Page 549: ......
Page 550: ......
Page 551: ......
Page 552: ......
Page 553: ......
Page 554: ......
Page 555: ......
Page 556: ......
Page 557: ......
Page 558: ......
Page 559: ......
Page 560: ......
Page 561: ......
Page 562: ......
Page 563: ......
Page 564: ......
Page 565: ......
Page 566: ......
Page 567: ......
Page 568: ......
Page 569: ......
Page 570: ......
Page 571: ......
Page 572: ......
Page 573: ......
Page 574: ......
Page 575: ......
Page 576: ......
Page 577: ......
Page 578: ......
Page 579: ......
Page 580: ......
Page 581: ......
Page 582: ......
Page 583: ......
Page 584: ......
Page 585: ......
Page 586: ......
Page 587: ......
Page 588: ......
Page 589: ......
Page 590: ......
Page 591: ......
Page 592: ......
Page 593: ......
Page 594: ......
Page 595: ......
Page 596: ......
Page 597: ......
Page 598: ......
Page 599: ......
Page 600: ......
Page 601: ......
Page 602: ......
Page 603: ......
Page 604: ......
Page 605: ......
Page 606: ......
Page 607: ......
Page 608: ......
Page 609: ......
Page 610: ......
Page 611: ......
Page 612: ......
Page 613: ......
Page 614: ......
Page 615: ......
Page 616: ......
Page 617: ......
Page 618: ......
Page 619: ......