Straight Linesorbands - Ricoh FT4430 Service Manual

3. Line or Band Appears at The Rear Edge of The Copy (A3 or 11" x 17')
- Possible Cause -
+ Toner
shield glass miscounted
Action -
-
Set the toner shield glass properly.
Straight Lines Or Bands
4.
- Possible Causes -
+ Hot roller Scratched
+ Insufficient Silicone oil
+
Cleaning blade damaged
+ Drum scratched
Action -
-
Do the lines move with the image when making reduced copies?
Y N
I
Start a copy cycle and stop it just before the paper reaches the fusing
unit. Then, check if the unused copy has the same lines on it?
Y N
I
If the hot roller surface is scratched, clean, correct, or replace
any parts scratching the surface?
Note: If the hot roller strippers are badly toner stained, check
Is the drum scratched?
Y N
I
If you cannot solve the problem by following trouble shooting
"Uneven Density 2. Uneven density appears in bands", clean the
edge of the cleaning blade. Make sure the blade cleaner moves
smoothly, and the cleaner edge is straight.
Determine what scratched
pawls), and replace the drum.
efer to "Vertical White Lines 2) Straight sharp line(s)".
and adjust the fusing temperature. Replace the hot roller.
Check silicone oil level.
-
the drum and correct it (perhaps the pick-off
11-11
16 April '88