Epson C 2900 Manual

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 187 Confidential 
 
[Replacement] 
1) Secure the DUCT FAN to the printer 
with the two hooks. 
2) Secure the DUCT FAN to the printer 
with the one screw (silver, 6mm). 
3) Route the HARN ASSY ESS and HARN 
ASSY ESS VIDEO through the hooks of 
the DUCT FAN, engage the two 
connectors (P/J101, 111) on the PWBA 
ESS SFP.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 188 Confidential 
 
4) Mate the five bosses of the printer with 
the holes of the SHIELD ASSY ESS, 
secure it with the eleven screws (silver, 
6mm). 
 
5) Insert the lower tab of the PLATE ESS 
into the slit of the SHIELD ASSY ESS, 
after inserting the upper tab of the PLATE 
ESS into the slit of the SHIELD ASSY 
ESS.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 189 Confidential 
 
6) Close the PLATE ESS and secure the 
SCREW KNURLING. 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 190 Confidential 
 
RRP8.3 PWBA ESS SFP (PL8.1.7)  
[Removal] 
Note: Use the wrist strap to protect the PWB from the electrostatic. 
1) Remove the CASSETTE ASSY 250. (RRP2.1) 
2) Open the COVER ASSY FRONT MG (PL1.2.1). 
Note: Cover the drum of the DRUM CARTRIDGE to avoid exposure to light.  
3) Remove the DRUM CARTRIDGE. (RRP4.6)  
Note: The FUSING part is very hot. Take added care not to get burned when performing the 
service operation. 
4) Remove the FUSER UNIT. (RRP6.1) 
5) Remove the COVER ASSY TOP. (RRP1.1) 
6) Remove the COVER ASSY WINDOW TNR. (RRP1.6) 
7) Remove the COVER SIDE R. (RRP1.5) 
8) Remove the COVER SIDE L. (RRP1.7) 
9) Remove the COVER REAR. (RRP1.3) 
10) Remove the FAN. (RRP8.1) 
11) Loosen the SCREW KNURLING 
(PL8.1.13) and then  open the PLATE ESS 
(PL8.1.12).  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 191 Confidential 
 
12) Swing the PLATE ESS to upward 
slightly, to release the upper tab of the 
PLATE ESS from the slit of the SHIELD 
ASSY ESS (PL8.1.3) after releasing the 
lower tab of the PLATE ESS from the slit of 
the SHIELD ASSY ESS. Remove the 
PLATE ESS from the printer. 
13) Remove the eleven screws (silver, 
6mm) that fix the SHIELD ASSY ESS to 
the printer.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 192 Confidential 
 
14) Remove the SHIELD ASSY ESS from 
the printer. 
15) Disengage all the connectors of the 
PWBA ESS SFP (PL8.1.7). 
16) Pull out the connector (J401) of the 
HARN ASSY ESS POWER (PL9.1.10) and 
the connector (J403) of the HARNESS 
ASSY B (PL9.1.12) through the hole of the 
FRAME ESS (PL8.1.5).  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 193 Confidential 
 
17) Remove the six screws (silver, 6mm) 
that fix the PWBA ESS SFP and the 
PLATE IF M (PL8.1.6) to the printer, 
remove the PWBA ESS SFP from the 
printer together with the PLATE IF M. 
18) Remove the one screw (silver, 4mm) 
that fixes the USB connector of the PWBA 
ESS SFP to the PLATE IF M. 
19) Remove the two screws (silver, 6mm) 
that fix the PWBA ESS SFP to the PLATE 
IF M, remove the PWBA ESS SFP from 
the PLATE IF M. 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 194 Confidential 
 
[Replacement] 
Note: Ensure proper electrostatic discharge procedures are followed to prevent damage to the 
PWBA ESS SFP and options during replacement. 
 
Note: The replacement steps of procedure 1) to 3) are to be required for changing the PWBA 
ESS SFP. Those steps are not required for only removing it. 
 
 
Note: Avoid applying excessive pressure when removing and replacing the ROM chips. 
 
Note: Take care not to bend the terminal section of ROM when carrying out the job described 
below. 
1) Remove the ROM, using a miniature 
screwdriver or the like, from the IC sockets 
on old PWBA ESS SFP that was removed 
from the printer. 
2) Remove the ROM from IC socket on 
new PWBA ESS SFP using a miniature 
screwdriver or the like. 
Note: Do not use ROMs removed from new PWBA ESS SFP.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 195 Confidential 
 
3) Attach the ROM that were removed 
from old PWBA ESS SFP on IC sockets 
of new PWBA ESS SFP with its notch 
aligned with the notch in IC socket. 
 
4) Secure the PLATE IF M to the PWBA 
ESS SFP with the two screws (silver, 
6mm). 
 
5) Secure the USB connector of the 
PWBA ESS SFP to the PLATE IF M with 
the one screw (silver, 4mm). 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 196 Confidential 
 
6) Mate the hole of the PLATE IF M with 
the tab of the printer, attach the PWBA 
ESS SFP together with the PLATE IF M.
 
7) Secure the PWBA ESS SFP to the 
printer with the six screws (silver, 6mm).
 
8) Insert the connector (J401) of the 
HARN ASSY ESS POWER and the 
connector (J403) of the HARNESS 
ASSY B into the FRAME ESS through 
the hole.