DOWNLOAD Sharp AR-122E (serv.man3) Service Manual ↓ Size: 6.58 MB | Pages: 127 in PDF or view online for FREE

AR-122E/152E/153E/157E  OPERATIONAL DESCRIPTIONS  7 - 6

1) Before paper feed operation, the manual paper feed solenoid

(MPFS) is turned OFF as shown in the figure below.

2) When the PRINT button is pressed, the manual paper feed

solenoid (MPFS) turns on to disengage the manual paper feed
latch.
A from the manual paper feed clutch sleeve A, rotating the manual
paper feed roller and the manual take-up roller. At the same time,
the manual paper feed stopper opens and the manual take-up
roller is pressed to the surface of the paper to start paper feeding.

3) When pawl C of the manual paper feed clutch sleeve is engaged

with the manual feed latch, the manual feed stopper falls and the
manual take-up roller rises. At that time, the manual paper feed
roller is rotating.

4) The lead edge of the transported paper is pressed on the resist

roller by the transport roller. Then the paper is stopped temporarily
to allow synchronization with the lead edge of the image on the
OPC drum.
From this point, the operation is the same as the paper feed
operation from the tray. (Refer to A-5 - 8.)

5) The solenoid turns off to close the gate and return to the initial

state.

OF

MPFS

F

C

A

ON

MPFS

A

C

ON

MPFS

A

C

OF

MPFS

F

A

C

AR-122E/152E/153E/157E  OPERATIONAL DESCRIPTIONS  7 - 7

The SPF (Single Path Feeder) is installed to the AL-1456 as a stan-
dard provision, and it automatically copies up to 30 sheets of docu-
ments of a same size. (Only one set of copies)

1) When SPPD is ON (document remaining) when the power is

turned on.

2) When SPPD is not turned ON within about 1.5 sec (at 100% copy)

after starting the document feed operation.

3) When SPPD is not turned on within about 4.7 sec (at 100% copy)

after turning on SPPD.

4) When the SPF document jam release door or the OC cover is

opened during document transport (SPF motor rotating).

Set duplex documents on the document tray.

Set paper on the cassette. (In the duplex mode, the manual feed tray
cannot be selected.)

The document feed roller feeds the document from the paper feed
roller to the PS roller.

• The document is exposed in the exposure section, and sent to the

document exit section

• by the transport/paper exit roller.

• R-SPF gate solenoid ON

• The document is sent to the intermediate tray.

(but not discharged completely.)

• The document is stopped once, then switchback operation is

performed. 
(To the back copy)

The document is passed through the paper feed roller and the PS
roller by the paper feed roller

and the images on the front surface are transferred.

• The paper is passed through the fusing section and the lower side of

the gate section to the paper exit tray side, (but not discharged

completely.)

• It is stopped once and switchback operation is performed.

(To the back copy)

a

PPD1 jam

PPD1 does not turn off within 4 sec after turning 
on the resist roller.

b

PPD2 jam

PPD2 is off immediately after turning on the 
resist roller.
PPD2 does not turn off within 1.2 sec after 
turning off the resist roller.

c

POD jam 

POD does not turn on within 2.9 sec after turning 
on the resist roller.
POD does not turn off within 1.5 sec - 2.7 sec 
after turning off PPD2.

1

Pickup roller

2

Sheet of document for 
paper feed

3

Set detection ACT

4

Paper stopper

5

Document feed roller

6

Separation sheet

7

Paper entry sensor

8

PS roller D

9

Transport follower roller

10

Paper exit roller

11

Paper exit follower roller

12

Document tray

2

1

3

4

5

6

7

8

9

10

11

12

SPID ON

PSW ON

MIRM rotation

MM rotation

CPFS ON

SPFM rotation

SPUS ON

Document set

Document set sensor

Document feed unit lamp ON

PPD ON

RRC ON

SPPD ON

POD ON

Copy start

The scanner is shifted
to the exposure position.

(Copier side)

Main motor rotation

Paper feed

Synchronization

(Transfer)

(Fusing)

(Document exit)

Paper transport

(Exposure)

In the zooming mode, the magnification ratio in the sub 
scanning direction (paper transport direction) is adjusted
by changing the document transport speed.

(Paper exit)

SPF motor rotation

Document feed

Document transport sensor

Document transport

(SPF side)

Time chart (Tray feed)

752msec

625msec

756msec

PSW

MIRR M

SPF M

CL

SPUS
SPPD

SCANST

MAIN M

CPFS1

RRS
PPD1

PPD2

POD

AR-122E/152E/153E/157E  OPERATIONAL DESCRIPTIONS  7 - 8

By switchback operation, the document is sent through the PS roller to
the exposure section, where the back of the document is exposed.

• It is sent to the document exit section by the transport roller and the

paper exit roller.

• R-SPF gate solenoid ON. The document is sent to the intermediate

tray, (but not discharged completely.)

• It is stopped once and switchback operation is performed.

• It is sent through the PS roller and the exposure section (without

exposure operation) to the document exit section.

• R-SPF gate solenoid OFF

• The document is discharged to the document exit tray.

Switchback operation is performed.

• The paper is sent through the upper side of the gate section and the

duplex transport section, and the PS roller, and the images on the

back are transferred.

• It is sent through the fusing section and discharged to the paper exit

tray.

Switchback operation is made after back copying in order to discharge
documents according to the setting.

Set document Documents after discharge,

There are following job modes as well as D-D mode.

S - S (Simplex to Simplex)

S - D (Simplex to Duplex), 

Rotation copy mode (The back images are rotated 180° C.)

S - D (Simplex to Duplex), Copy mode without rotation

D - S (Duplex to Simplex)

The front and the back are in upside down each other.

The front and the back are not in upside down.

1

 with empty feed

4

without empty feed

3

2

3

4

3

2

1

4

1

2

AR-122E/152E/153E/157E  DISASSEMBLY AND ASSEMBLY  8 - 1

The disassembly and assembly procedures are described for the fol-
lowing sections:

1.

High voltage section

2.

Operation panel section

3.

Optical section

4.

Fusing section

5.

Tray paper feed/transport section

6.

Manual paper feed section

7.

Rear frame section

8.

Power section

9.

2nd cassette section

10. Duplex motor section

11. Reverse roller section

12. RSPF section

1) Remove the drum cover. (4 Lock Tabs)

2) Remove the drum fixing plate and the photoconductor drum.

(Note) Dispose the drum fixing plate which was removed.

3) Check the cleaning blade and the red felt for no damage.

• If there is any damage, execute all procedures from item 5) and

later.

• If there is no damage, execute the procedure of item 12).

4) Remove the main charger.

(Cleaning the screen grid and the sawteeth.)

No.

Part name Ref.

1

Drum

2

Transfer charger unit

3

Charger wire