Light Print Over The Entire Page - Toshiba e-STUDIO 20CP Service Manual

Step Action and Questions
3
High Voltage Contact Block Assembly Check, PC Drum
Contact Pin - Check for a stuck PC Drum Contact in the HV
contact block assembly. Refer to figure 1 for the location of
the PC Drum Contact Pin.
Is the pin stuck or does not operate smoothly?
4
High Voltage Contact Block Assembly Check, Continuity
Check for continuity from the PC Drum Contact Pin to the
PC Drum Developer Pin Spring.
Is there continuity?
5
High Voltage Contact Block Assembly Check, PC Drum
Developer Pin Spring - Check the PC Drum Developer Pin
Spring to make sure it is not bent or damaged.
Is the spring bent or damaged?
Step B
Step Action and Questions
1
Retraction Motor Check - Generally this symptom is caused
by a retracted ITU assembly. Check to see if the ITU
retraction motor keeps the ITU in the retracted position.
Does the motor keep the ITU in the retracted position?

Light print over the entire page

If all colors have light print, replace the
If only one color has light print, go to step 1.
Step Action and Questions
1
Toner Cartridge Check - The toner may be out, the toner
cartridge seated improperly or the shutter has been left on
the bottom of the cartridge.
Is the toner cartridge seated properly and the shutter
removed?
2-72
Service Manual
5060-XXX
Yes
Repair the HV
Contact Block
Assembly.
Go to Step 5
Replace the
PC Drum
Developer Pin
Spring.
Yes
Replace the
Retraction
Motor. If this
does not
correct the
problem,
replace the
"Engine
Board" on
page
"HVPS Developer Board" on page
Yes
Go to Step 2
No
Go to Step 4
Repair the HV
Contact Block
Assembly.
Replace the
"HVPS
Developer
Board" on
page 4-38
No
Replace the
"HVPS
Developer
Board" on
page 4-38
4-14.
4-38.
No
Install the
cartridge
correctly or
remove the
packing
material from
the cartridge.