KIP 700m - 4. 3 Check & Adjustment of Analog Output from HV Power Supply; 4. 3. 1 Situations necessary to check the analog output

K117sm4e3
4-17
4. 3 Check & Adjustment of Analog
Output from HV Power Supply
4. 3. 1 Situations necessary to check the analog
output
It is necessary to check the analog output from High Voltage Power Supply after replacing the
following parts.
PW11720 PCB (DC Controller)
HV Power Supply PCB (EUK1MGA60HA)
Please check the analog output for each of the following part, and please adjust if it is out of the
specified range.
Each “Reference page” in the list shows how to check and adjust each item.
Check Item Reference page
Analog Voltage to Image Corona 4-18
Analog Voltage to Transfer Corona 4-20
AC Component to Separation Corona 4-22
DC Component to Separation Corona 4-24
Negative Developer Bias to the Developer Roller 4-26
Positive Developer Bias to the Developer Roller 4-28
Bias gap between Developer Roller and Regulation Roller 4-30
Positive Cleaning Roller Bias (Print Cycle) 4-32
Negative Cleaning Roller Bias (Toner Collection Process) 4-34
Please try to replace the PW11720 PCB or HV Power Supply PCB if you have the following
kinds of problem.
PW11720 PCB
(1) When the UI indicates abnormal indication although the UI has no problem.
(2) When the electric component such as motor or lamp does not work properly although
such component has no problem.
HV Power Supply PCB (EUK1MGA60HA)
When the output to Image Corona / Transfer Corona / Separation Corona / Developer Roller
/ Toner Supply Roller / Regulation Roller / Cleaning Roller is abnormal.
Reference