Epson C 2900 Manual

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 217 Confidential 
 
RRP8.9 PWBA MCU (PL8.2.13)   
[Removal] 
Note: Never fail to perform the diagnostic operation. Otherwise the data will be lost in the worst 
case. 
Note: Use the wrist strap to protect the PWB from the electrostatic. 
1) Perform the NVM Save to evacuate the MCU data. 
2) Turn on the power while pressing the  ▲ key and  ▼ key on the control panel. 
3) Enter the password, press the  ▼ key twice, and press the [OK] key once. The diagnostic screen 
comes up. 
4) Press the [OK] key once. 
5) Press the  ▼ key several times until IOT Diag is  displayed. Press the [OK] key once. 
6) Press the  ▼ key several times until NVM Settings is displayed. Press the [OK] key once. 
7) Press the  ▼ key several times until SaveNVM to ESS is displayed. Press the [OK] key once. 
8) Press the [OK] key once, and NVM Save is performed. 
9) After NVM Save is complete, press the [STOP] key several times until IOT Diag is displayed. 
10) Press the  ▼ key several times until Complete is displayed. 
11) Press the [OK] key two times. “Ready” are displayed. 
12) Turn off the power to exit. 
13) Remove the POWER CORD from outlet. 
14) Remove the CASSETTE ASSY 250. (RRP2.1) 
15) Open the COVER ASSY FRONT MG (PL1.2.1). 
Note: Cover the drum of the DRUM CARTRIDGE to avoid exposure to light.  
16) 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. 
17) Remove the FUSER UNIT. (RRP6.1) 
18) Remove the COVER ASSY WINDOW TNR. (RRP1.6) 
19) Remove the COVER ASSY TOP. (RRP1.1) 
20) Remove the COVER SIDE R. (RRP1.5) 
21) Remove the COVER SIDE L. (RRP1.7) 
22) Remove the COVER REAR. (RRP1.3) 
23) Remove the FAN. (RRP8.1) 
24) Remove the PWBA ESS SFP. (RRP8.3)  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 218 Confidential 
 
25) Remove the five screws (silver, 6mm) 
that fix the FRAME ESS (PL8.1.5) to the 
printer. 
26) Swing the FRAME ESS slightly up and 
back as if it were hinged at the top. 
27) Remove the hole of the FRAME ESS 
from the hook of the FRAME ASSY LVPS 
(PL8.2.3) by lifting the FRAME ESS 
slightly. Remove the FRAME ESS from the 
printer together with the DUCT FAN 
(PL8.1.2).   
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 219 Confidential 
 
28) Disengage all the connectors of the 
PWBA MCU (PL8.2.13). 
29) Remove the six screws (silver, 6mm) 
that fix the PWBA MCU to the printer. 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 220 Confidential 
 
30) Remove the PWBA MCU from the 
printer.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 221 Confidential 
 
[Replacement] 
Note: Use the wrist strap to protect the PWB from the electrostatic.  
1) Mate the holes of the PWBA MCU with 
the tabs of the printer, attach it. 
2) Secure the PWBA MCU to the printer 
with the six screws (silver, 6mm). 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 222 Confidential 
 
3) Engage all the connectors of the PWBA 
MCU. 
 
4) Mate the hole of the FRAME ESS with 
the hook of the FRAME ASSY LVPS.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 223 Confidential 
 
5) Attach the DUCT FAN to the printer 
together with the FRAME ESS. 
6) Secure the FRAME ESS to the printer 
with the five screws (silver, 6mm). 
 
Note: When the PWBA MCU is replaced with a new one, perform the following steps. 
(After completing all the steps .) 
7) Plug in the power cord to the printer. 
8) Execute diagnostic operation of NVM Load, and write the data into PWBA MCU. 
9) Turn off the power. 
10) Perform the diagnostic operation of NV M Load, and write the data into the MCU. 
11) Turn on the power while pressing the  ▲ key and  ▼ key on the control panel. 
12) Enter the password, press the  ▼key twice, and press the [OK]  key once. The diagnostic screen 
comes up. 
13) Press the  ▼ key several times until IOT Diag is displayed. Press the [OK] key once. 
14) Press the  ▼ key several times until NVM Settings is displayed. Press the [OK] key once. 
15) Press the  ▼ key several times until LoadNVM from ESS  is displayed. Press the [OK] key once. 
16) Press the [OK] key once, and NVM Load is performed. 
17) After NVM Load is complete, press the [STOP] ke y several times until IOT Diag is displayed. 
18) Press the  ▼ key several times until Complete is displayed.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 224 Confidential 
 
19) Press the [OK] key twice. “Ready” is displayed. 
20) Turn off the power to exit.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 225 Confidential 
 
RRP9. DUPLEX (Option) 
RRP9.1 FEEDER ASSY DUP SFP STD (PL11.1.1)   
[Removal] 
1) Open the COVER ASSY FRONT MG (PL1.2.1). 
2) While pushing the LATCH BUTTON, lift 
up the FEEDER ASSY DUP SFP STD 
from the printer. 
2.1
2.2 
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 226 Confidential 
 
[Replacement] 
1) Align the arrow on the FEEDER ASSY 
DUP SFP STD with the one on the 
COVER ASSY FRONT MG, attach the 
FEEDER ASSY DUP SFP STD. 
2) Push the FEEDER ASSY DUP SFP 
STD to secure it. 
3) Close the COVER ASSY FRONT MG.