Epson C 2900 Manual

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 207 Confidential 
 
RRP8.7 SENSOR HUM (PL8.2.7)   
[Removal] 
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 SIDE L. (RRP1.7) 
7) Remove the one screw (silver, tap, 
8mm) that fixes the SENSOR HUM 
(PL8.2.7) to the printer, remove the 
SENSOR HUM. 
8) Disengage the connector (P/J201) of 
the SENSOR HUM. 
   
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 208 Confidential 
 
[Replacement] 
1) Engage the connecter (P/J201) of the 
SENSOR HUM. 
2) Secure the SENSOR HUM to the printer 
with the one screw (silver, tap, 8mm). 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 209 Confidential 
 
RRP8.8 SWITCH ASSY INLET MG SFP (P L8.2.9), COVER INLET (PL8.2.22)   
[Removal] 
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) Disengage the five connectors (P/J20, 
23, 24, 26 and 28) on the PWBA MCU 
(PL8.2.13), release the harness from the 
GUIDE HARNESS AC (PL8.2.6). 
11) Disengage the connector (P/J48) of 
the SWITCH ASSY INLET MG SFP 
(PL8.2.9) from the PWBA LVPS (PL8.2.1).
Remove the one screw (silver, with 
washer, 6mm) that fixes the grounding 
terminal of the SWITCH ASSY INLET MG 
SFP, release the harness of the SWITCH 
ASSY INLET MG SFP from the GUIDE 
HARNESS AC. 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 210 Confidential 
 
12) Remove the two screws (silver, tap, 
8mm) that fix the BRACKET SW (PL8.2.8) 
to the printer. 
Note: The MAIN SWITCH and the printer are connected with the harness, so they should not be 
far apart when carrying out the work described next procedure. 
13) Release the BRAKET SW from the 
hook together with the MAIN SW. 
14) Remove the two screws (silver, tap, 
12mm) that fix the COVER INLET 
(PL8.2.22) to the printer.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 211 Confidential 
 
15) Release the hooks of the SWITCH 
POWER, remove the SWITCH POWER of 
the SWITCH ASSY INLET MG SFP from 
the BRACKET SW. 
16) Remove the COVER INLET from the 
printer, pull out the harness and SWITCH 
POWER through the hole on the 
printer, 
and remove the 
SWITCH ASSY INLET 
MG SFP from the printer. 
17) Release the hooks of the AC INLET, 
remove the AC INLET of the SWITCH 
ASSY INLET MG SFP from the COVER 
INLET.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 212 Confidential 
 
18) Pull out the harness and SWITCH 
POWER through the hole of the COVER 
INLET
. 
19) Pull out the connector (J48) through 
the hole of the COVER INLET, and remove 
the SWITCH ASSY INLET MG SFP from 
the COVER INLET.  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 213 Confidential 
 
[Replacement] 
1) Route the connector (J48) of the 
SWITCH ASSY INLET MG SFP through 
the hole of the COVER INLET. 
2) Route the harness and SWITCH 
POWER of the SWITCH ASSY INLET MG 
SFP through the hole of the COVER 
INLET. 
3) Attach the AC INLET of the SWITCH 
ASSY INLET MG SFP to the COVER 
INLET, and secure it with the hooks. 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 214 Confidential 
 
4) Route the harness and SWITCH 
POWER of the SWITCH ASSY INLET MG 
SFP through the hole of the printer. 
Note: When replacing the SWITCH 
ASSY INLET MG SFP, match the 
ON/OFF mark of the SWITCH POWER 
with the mark on the BRACKET SW. 
5) Attach the SWITCH POWER of the 
SWITCH ASSY INLET MG SFP to the 
BRACKET SW, and secure it with the 
hooks. 
  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 215 Confidential 
 
6) Secure the COVER INLET to the printer 
with the two screws (silver, tap, 12mm). 
7) Mate the notch of the BRACKET SW 
with the hook of the GUIDE HARNESS 
AC. 
8) Mate the holes of the BRACKET SW 
with the two bosses of the printer, secure 
the BRACKET SW with the two screws 
(silver, tap, 8mm).  
						

							Chapter 3 Removal and Replacement Procedures Revision B 
Epson AcuLaser C2900N 3 - 216 Confidential 
 
9) Route the harness of the SWITCH 
ASSY INLET MG SFP along the GUIDE 
HARNESS AC, secure the grounding 
terminal of the SWITCH ASSY INLET MG 
SFP with the one screw (silver, with 
washer, 6mm). 
Engage the connector (P/J48) of the 
SWITCH ASSY INLET MG SFP to the 
PWBA 
LVPS. 
10) Route the harness along the GUIDE 
HARNESS AC, engage the five connectors 
(P/J20, 23, 24, 26 and 28) with the PWBA 
MCU.