Muratec MFX-C4000, Field Engineering Manual

Page: 194 / 280

Alignment & Troubleshooting
Service Manual
4-88
Problem Description Cause Description Action to Resolve
Broken Lines on
Image
1. Lineburst on Fuser
Unit
[1. Lineburst on Fuser Unit]
1.1) Check the Fuser unit is working out properly.
1.2) Check the T/C contol value [TM #111-0006~0017]. If there
is any wrong value, change the value..
1.3) Check the CTD density [EDC #117-0000].
1.4) If the density is not decreased, operate the CTD density
Patch[EDC #117-0001]. And check the density, decrease
the density level on Custiom Color setting.
1.5) If you could not adjust the density on Custom Color, do [TM
#111-0006~0017] to adjust the T/C.
Insufficient Toner
Fixing on Printed
Image
1. Low Fusing
Temperature
2. High Toner Density
[1. Low Fusing Temperature]
[2. High Toner Density]
2.1) Check the Fuser unit is working out properly.
2.2) Check the T/C contol value [TM #111-0006~0017]. If there
is any wrong value, change the value..
2.3) Check the CTD density [EDC #117-0000].
2.4) If the density is not decreased, operate the CTD density
Patch[EDC #117-0001]. And check the density, decrease
the density level on Custiom Color setting.
2.5) If you could not adjust the density on Custom Color,
operate [TM #111-0006~0017] to adjust the T/C.
No Image Output at
Printing
1. Fail to Open LSU
Cover
2. No High Voltage
Output from HVPS
[1. Fail to Open LSU Cover]
1.1) Consult the LSU error flow chart.
[2. No High Voltage Output from HVPS]
2.1) Check that abnormal developing condition was occured by
the defective environmental sensor.
2.2) Check the Charge Bias [TM #105-0010~0016] and Deve
Bias [TM #106-0000~0003]. If it is defective, change the
value.
2.3) Check the Charge Bias [EDC #105-0000~003]. If it is
defective, replace the HVPS
2.4) Check the Deve Bias [EDC #106-0000~003], replace the
HVPS.
2.5) If High voltage output and HVPS are normal, replace the
developing unit.
No Image Output at
Copy
1. Fail to Obtain Scan
Data
[1. Fail to Obtain Scan Data]
Inaccurate Color
Registration
1. Failure in Auto Color
Registration Process
2. Inaccuracies in
Imaging Process
[1. Failure in Auto Color Registration Process]
1.1) Refer to Fuser open error
[2. Inaccuracies in Imaging Process]
2.1) Execute the manual ACR