MX-C300P, MX-C300PE, MX-C300PL. Service Manual (Revised May 2016). - Sharp Copying Equipment Service Manual (repair manual). Page 120

MX-C300P  MAINTENANCE  9 – 1

MX-C300P

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When the drum cartridge, the primary transfer unit, the secondary
transfer unit, or the fusing unit is replaced with a new one, the initial
detection function operates after turning ON the power to reset
each counter automatically.

When the machine is initialized during warming up, or when the
simulation is executed or the machine is turned OFF and the door
is opened before the machine enters the print ready state, the initial
detection function may not operate normally. Therefore, never exe-
cute the simulation or never operate the machine such as turning
OFF the machine power and opening the door before the machine
enters the print ready state after replacing one of the above parts
and turning ON the power.

When the counter is not automatically reset, it must be reset manu-
ally.

Since the maintenance counter (total) and the maintenance coun-
ter (color) are not automatically reset, they must be cleared by exe-
cuting SIM24-4.

(For details, refer to the page of "2. Maintenance timing display.")

When the developer cartridge is replaced, the initial setting of the
toner density needs to be executed by SIM25-2.

If another simulation is executed or the machine power is turned
OFF during execution of this simulation, the initial setting of the
toner density cannot be executed normally. Therefore, never oper-
ate the machine until the initial setting of the toner density is com-
pleted (the machine enters the print ready state).

Perform the following items.

- Image skew adjustment (LSU unit) (SIM61-04)

- Image registration adjustment (SIM50-22)

- Firmware version check (SIM22-05) (Execute according to the

necessity.)

- Trouble counter and JAM counter reset (SIM24-01)