Canon ImageRunner iR8500 Series, Service Manual, Page: 859 / 1122

Chapter 17
17-15
F-17-22
<No.> Error sequential number: 1 to 50 (The oldest error has the greatest number.)
<DATE> Error occurrence date
<TIME1> Error occurrence time
<TIME2> Error reset time
<CODE> Error code
<DTL> Error detail code (0000 for none)
<1> Error location
0: Main controller 1: DADF 2: Finisher 3: Not used 4: Reader unit 5: Printer unit
6: Various PDL board
<P> Not used
<HV-STS>
T-17-5
<DPOT>
T-17-6
<SENSOR>
T-17-7
COPIER > DISPLAY > HV-STS
Sub-item Description Leve
PRIMARY Primary charge current at photoconductor drum Registrationance detection
control (APVC) Unit: uA
1
PRI-GRID Indicates the grid voltage of primary charging. (V) 1
PRE-TR Indicates the level of current for pre-transfer (post) charging. 1
TR Indicates the level of transfer charging current. 1
SP Indicates the level of separation charging current. 1
BIAS Developing bias setting for the job executed last Unit: V 1
COPIER > DISPLAY > DPOT
Sub-item Description Leve
DPOT-K indicates the surface potential of the photosensitive drum. 1
VL1T indicates the light area potential target value. 1
VL1M indicates the light area measurement value. 1
VDT indicates the dark area target value. 1
VDM indicates the dark area measurement value. 1
VDM-P indicates the dark area potential measurement value for printer (PDL)
images.
1
VDT-P indicates the dark area potential target value for printer (PDL) images. 1
COPIER > DISPLAY > SENSOR
Sub-item Description Level
DOC-SZ Indicates the original size detected by the original size sensor. 2
DOC-SZ1 Indicates the sensor output detected by the original size sensor 1. 2
DOC-SZ2 Indicates the sensor output detected by the original size sensor 2. 2
DOC-SZ3 Indicates the sensor output detected by the original size sensor 3. 2
DOC-SZ4 Indicates the sensor output detected by the original size sensor 4. 2