Removing/Replacing The Consumables; Updating The Main Controller Program Rom - Epson AcuLaser C4000 Service Manual

EPSON AcuLaser C4000/C4100/C3000
6. Insert the standard lower cassette into the printer.
7. Carefully lift up the printer with two or more people until the holes on the
bottom of the printer are free from the five pins on the top of the unit, and
place it on a flat stable surface.
Figure 4-4. Large capacity paper unit 3
Disassembly and Assembly

4.2.2 Removing/Replacing the Consumables

The consumables available (can be replaced by users) for this printer are as
shown below. Refer to Chapter 6 for the procedure.
TONER CARTRIDGE (Y, M, C, K)
PHD ASSY
BTR ASSY
FUSER ASSY

4.2.3 Updating the Main Controller Program ROM

The program ROM of this printer is a flash ROM module and can be updated in
one of the following 2 ways:
1. Transferring the ROM updating program data (*.CRB) from the host
computer via the standard parallel interface.
2. Copying the program ROM from the flash ROM module which has the most
updated program.
Also, when you failed to write the program into the flash ROM and perform the
same writing operation again or when you copy the program from the flash
ROM module to another flash ROM module.
See the following sections for the procedures of each operation.
4.2.3.1 Updating the ROM using a standard parallel interface
Follow the instructions below to update the program ROM using a standard
parallel interface.
NOTE: The personal computer to be used should be able to send binary data
from DOS prompt via a parallel interface.
Disassembly Assembly Procedures
Revision F
4-306