Epson AcuLaser C8500, Service Manual

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EPSON AcuLaser C8500 Revision C
PRODUCT DESCRIPTIONS Engine Restrictions 1-56
NOTE: Newly added for Cordonbleu.
Table 1-32. Restrictions on the period from printing finished to mechanism ceases (Density adjustment at Cycle down)
Item IBT Rotations
Operational
Conditions
Description Notes
Density adjustment
(at cycle down)
3
1. Fuser temperature is 94C or less.
2. Every 20 pages(40 pages when 2-up
printing.
3. When the total waiting time exceeds 4
hours.
4. When high Coverage is detected.
5. The first printing after the amount of
toner is adjusted (Addmix, Sweep Out).
After Empty Reset operation is executed.
6. In case that low-density is detected while
density adjustment in Cycle-up or during
printing.
TC control
-It may be A3 (6 pages), A4 LEF 2-up
(12 pages) when toner near empty
occurs.
-During the operation, the printer
becomes APQ mode.
Density adjustment
(supply toner) 6-84
-Low-density is detected during the density
adjustment.
-During high-coverage measures( not
necessary)
-Near Toner Empty is detected.
Addmix (supply toner)
During the operation, the printer
becomes APQ mode.
Density adjustment
(sweeps toner out)
6-12
High-density is detected during the density
adjustment.
Sweep Out (sweep toner out)
During the operation, the printer
becomes APQ mode.
Print quality adjustment
(Rotary idles)*1
Max 10
Rotary
revolutions
When the total number of rotary revolutions
is relatively small to K toner supplies.
Rotate the rotary and correct developer into
the cartridge collector. (Rotary home-
positioning operation is repeated several
times at cycle-down in order to loosen the
toner inclined by B/W continuous printing
and to stabilize dispense rate)
During the operation, the printer
becomes APQ mode.
Print quality adjustment
(IBT ghost masures)*1
2
When the IBT rotations are more than 1000
and printed 200 pages or more,
additionally, 65%Rh<Humidity<35%Rh. Remove the wax that adheres on the IBT
(Toner includes wax, and it can cause
“ghost”).
Once wax is removed, the counter is
reset and restart to count. 200 pages
regardless of paper size (A4/A3).
Rotates two times more than normal
cycle-down.