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Model
MX-3500N MX-3501N MX-4500N MX-4501N (serv.man12)
Pages
52
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10.23 MB
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Service Manual
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Device
Copying Equipment / Complete Manual .
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mx-3500n-mx-3501n-mx-4500n-mx-4501n-sm12.pdf
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MX3501N  DISASSEMBLY AND ASSEMBLY  5 – 18
(3) DSPF lift-up motor
1)
Remove the rear cabinet. (Refer to "1. Exterior section - A.
DSPF unit - (2) Rear cabinet.")
2)
Disconnect the connector, and open the edge saddle. Remove
the screw, and remove the DSPF lift-up motor.
B. Drive transport unit
1)
Remove the rear cabinet. (Refer to "1. Exterior section - A.
DSPF unit - (2) Rear cabinet.")
2)
Remove the DSPF No.1 resist roller brake clutch and the
DSPF No.1 resist roller clutch. (Refer to "3. Upper transport
section - A. DSPF No.1 resist roller brake clutch, B. DSPF
No.1 resist roller clutch.")
3)
Remove the DSPF transport roller clutch. (Refer to "3. Upper
transport section - C. DSPF transport roller clutch.")
4)
Remove the DSPF cooling fan motor. (Refer to "7. Drive sec-
tion - C. Others - (1) DSPF cooling fan motor.")
5)
Loosen the screw, and loosen the belt tension. Tighten the
screw.
6)
Remove the screw, and remove the drive transport unit.
(1) DSPF transport motor
1)
Remove the rear cabinet. (Refer to "1. Exterior section - A.
DSPF unit - (2) Rear cabinet.")
2)
Loosen the screw, and loosen the belt tension. Tighten the
screw.
3)
Disconnect the connector, and remove the screw. Remove the
DSPF transport motor.
C. Others
(1) DSPF cooling fan motor
1)
Remove the rear cabinet. (Refer to "1. Exterior section - A.
DSPF unit - (2) Rear cabinet.")
2)
Disconnect the connector, and remove the DSPF cooling fan
motor.
MX3501N  DISASSEMBLY AND ASSEMBLY  5 – 19
8. Others
A. OC mat
1)
Open the DSPF unit, and remove the OC mat from the left
edge.
* When assembling, place the OC mat on the document table to fit
with the reference and close the DSPF unit.
B. DSPF open/close sensor
1)
Remove the front cabinet. (Refer to "1. Exterior section - A.
DSPF unit - (1) Front cabinet.")
2)
Disconnect the connector and remove the screw. Remove the
open/close sensor holder. Remove the DSPF open/close sen-
sor from the open/close sensor holder.
C. DSPF lower door open/close sensor
1)
Remove the front cabinet. (Refer to "1. Exterior section - A.
DSPF unit - (1) Front cabinet.")
2)
Disconnect the connector, and remove the screw. Remove the
lower door open/close sensor holder. Remove the DSPF lower
door open/close sensor from the lower door open/close sensor
holder.
D. DSPF driver PWB
1)
Remove the rear cabinet. (Refer to "1. Exterior section - A.
DSPF unit - (2) Rear cabinet.")
2)
Disconnect the connector. Remove the screw, and remove the
DSPF driver PWB.
E. DSPF flash PWB
1)
Remove the screw, and remove the ROM cover.
MX3501N  DISASSEMBLY AND ASSEMBLY  5 – 20
2)
Release the lock, and remove the DSPF flash PWB.
F. DSPF control PWB
1)
Remove the rear cabinet. (Refer to "1. Exterior section - A.
DSPF unit - (2) Rear cabinet.")
2)
Remove the DSPF flash PWB. (Refer to "8. Others - E. DSPF
flash PWB.")
3)
Disconnect the connector, and remove the screw. Remove the
control PWB unit.
4)
Disconnect the connector, and remove the screw. Remove the
DSPF control PWB.
1
2
1
1
2
2
3
MX3501N  MAINTENANCE  6 – 1
MX3501N
Service Manual
 
[6] MAINTENANCE
1. Maintenance system table
✕: Check (Clean, replace, or adjust according to necessity.) {: Clean ▲: Replace U: Adjust ✩: Lubricate †: Shift the position.
No.
Part name
When calling
Main unit
maintenance cycle
Remarks
1
Paper feed 
section/
Transport 
section
Paper feed roller
{
{
Replacement reference: 100K or 1 year
2
Pickup roller
{
{
3
Separation roller
{
{
4
Torque limiter
✕
✕
Replacement reference: 100K
5
No. 1 resist roller (Drive)
{
{
6
Transport roller 1 (Drive)
{
{
7
No. 2 resist roller (Drive)
{
{
8
Platen roller
{
{
9
Transport roller 2 (Drive)
{
{
10
Transport roller 3 (Drive)
{
{
11
Paper exit roller (Drive)
{
{
12
Discharge brush
✕
✕
13
No. 1 scanning plate
{
{
14
No. 2 scanning section, scanning glass
{
{
15
No. 2 scanning section, white reference glass
{
{
16
Optical section
Lens
{
{
17
CCD
{
{
18
Mirror
✕
✕
19
Copy lamp
{
{
20
Reflector
{
{
21
Drive section
Gears (Grease)
✕
✕
UKOG-0299FCZZ (specified positions)
22
Belts
✕
23
Others
OC mat
{
{
11
10
9
13
15
18
17
22
19
22
22
21
16
20
14
6
7
8
3
2
4
23
1
5
12
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