Emergency Measures For A Fault In The Potential Sensor - Canon iR5055 Series Service Manual

Chapter 14
Control (V)
10.25
10.30
10.35
10.40
10.45
10.50
10.55
10.60
10.65
10.70
10.75
10.80
10.85
10.90
10.95
11.00

14.1.8 Emergency Measures for a Fault in the Potential Sensor

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
If the potential sensor goes out of order and, as a result, a transfer separation fault occurs, use the following service mode item to avoid problems; be sure, however,
that this is merely a tentative remedy to be used until the potential sensor is replaced:
1. COPIER>OPTION>TEMPO>F-POT-SW (Category 2)
Set '1' if a transfer separation fault occurs when the potential sensor has gone out of order.
2. COPIER>OPTION>TEMPO>F-POT-D (Category 2)
This is enabled when '1' is set for the foregoing service mode item.
0: if the user primarily uses originals with a low image ratio (text original). (default)
1: if the user primarily uses originals with a high image ratio (photo originals)
2: if re-transfer (drop-out about 50 mm of leading edge) occurs.
14-16
Primary (uA) Developing bias
(V)
131 543
122 547
113 551
105 555
96 558
87 562
78 566
70 570
61 573
52 577
43 581
35 585
26 588
17 592
8 596
0 600
Pre-transfer (uA) Transfer (uA)
-299 41
-301 38
-303 35
-305 33
-307 30
-309 27
-311 24
-313 22
-315 19
-317 16
-319 13
-321 11
-323 8
-325 5
-327 2
-330 0
Separation (uA)
-443
-447
-451
-455
-458
-462
-466
-470
-473
-477
-481
-485
-488
-492
-496
-500
0015-5288