Toner Density Control Reference Value Setting - Sharp MX-M264U Service Manual

1-C Toner density control reference value
setting
This adjustment must be performed in the following cases:
* When developer is replaced.
CAUTION: Be sure to execute this adjustment only when developer
is replaced. Never execute it in the other cases.
1) With the front cabinet open, enter SIM25-2.
EXECUTE
Adjustment completed
Abnormal end
EXECUTE
or INTERRUPT
MX-M264U ADJUSTMENTS AND SETTINGS 5 – 3
2) Close the front cabinet.
3) When [EXECUTE] key is pressed, [EXECUTE] key is high-
lighted (in black) and the developer adjustment is started. (The
adjustment is automatically performed for 3 minutes.)
4) When the developer adjustment is completed, [EXECUTE] key
returns to the normal state (in white), and the developer adjust-
ment value is displayed.
CAUTION: If the operation is interrupted within 3 minutes, the
adjustment result is not reflected.
When [EXECUTE] key is pressed during the operation,
the operation is stopped and [EXECUTE] key returns to
the normal display.
If [EE-EU] or [EE-EL] is displayed, setting of the refer-
ence toner density control value is not completed nor-
mally.
Troubleshoot the cause, remove the cause, and per-
form setting again.
Error
Error name
display
EE-EL EL abnormality Sensor output level below 78
EE-EU EU abnormality Sensor output level above 178
5) Cancel SIM25-2 with [CA] key.
6) Toner cartridge installation
Shake the toner cartridge 20 times horizontally.
7) Press the lock release lever and insert it along the guide in the
machine until it locks securely.
* Before installation, clean and remove dust and dirt from the
toner cartridge.
8) Close the front cabinet.
9) Confirm that "Toner replenishment in progress" is displayed,
and wait until the display disappears. (It takes 30 sec - 6 min.)
NOTE: This procedure is for checking the toner supply operation
from the toner cartridge to the DV unit. The operation time
differs depending on the toner quantity in the toner car-
tridge, uneven distribution of toner, and the internal state of
the toner cartridge.
CAUTION: Do not perform operations which interrupt the above
operation, such as opening the front cover, entering the
SIM mode, and turning OFF/ON the power. If this pre-
caution is ignored, Trouble codes F2-40 or F2-64 or a
over-toned condition may occur.
CAUTION: When not replacing the developer, do not execute
SIM25-2.
Detail of error
20