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JS-504 THEORY OF OPERATION Code Y109321-8

PUBLICATION ISSUED BY: Olivetti S.p.A. 77, Via Jervis - 10015 Ivrea (TO) Italy

Copyright © 2008, Olivetti All rights reserved

Revision history After publication of this service manual, the parts and mechanism may be subject to change for improvement of their performance. Therefore, the descriptions given in this service manual may not coincide with the actual machine. When any change has been made to the descriptions in the service manual, a revised version will be issued with a revision mark added as required.

Revision mark: • To indicate clearly a section revised, 1 is shown at the left margin of the revised section. The number inside 1 represents the number of times the revision has been made. • To indicate clearly a page that contains the revision, 1 is shown near the page number of the corresponding page. The number inside 1 represents the number of times the revision has been made. NOTE Revision marks shown in a page are restricted only to the latest ones with the old ones deleted. • When a page revised in Ver. 2.0 has been changed in Ver. 3.0: The revision marks for Ver. 3.0 only are shown with those for Ver. 2.0 deleted. • When a page revised in Ver. 2.0 has not been changed in Ver. 3.0: The revision marks for Ver. 2.0 are left as they are.

Theory of Operation Ver. 1.0 Aug. 2007

JS-504

CONTENTS JS-504

1.

Product specification ............................................................................................... 1

2.

Paper path............................................................................................................... 3

2.1

Exit to the Upper tray ............................................................................................ 3

2.2

Exit to the Lower tray ............................................................................................ 3

Outline

Outline

3.

Construction ............................................................................................................ 5

4.

Drive ........................................................................................................................ 6

5.

Operation ................................................................................................................ 7

5.1

Transport/exit section............................................................................................ 7

5.1.1

Paper transport ............................................................................................. 7

5.1.2

Transport path switching ............................................................................... 8

5.1.3

Full-of-paper detecting mechanism............................................................. 12

5.2

Paper shift section .............................................................................................. 13

5.2.1

Paper shift mechanism................................................................................ 13

5.2.2

Shift operation overview.............................................................................. 14

i

Composition/Operation

Construction and operation

Composition/Operation

Outline

JS-504

Theory of Operation Ver. 1.0 Aug. 2007

Blank Page

ii

Theory of Operation Ver. 1.0 Aug. 2007

1. Product specification

Outline Product specification

JS-504

1.

A. Type Type

Built-in type 2-bin stacker

Installation

Installed in main body

Document alignment

Center

Modes

Outline

B. Functions Sort, group, sort offset, group offset

C. Paper Exit tray

Upper tray

Size

Type

Capacity

A5S, B5S/B5, A4S/A4, B4, A3 8-1/2 X 11S/8-1/2 X 11, 8-1/2 X 14, 11 X 17 Max.: 297 mm X 431.8 mm 11.75 inch X 17 inch Min.: 148 mm X 210 mm 5.75 inch X 8.25 inch

Plain paper (64 to 90 g/m2) (17 to 24 lb)

50 sheets

Plain paper (64 to 90 g/m2) (17 to 24 lb)

150 sheets

Thick paper 1 (91 to 120 g/m2) (24.25 to 32 lb)

Lower tray

A6S, A5S/A5, B6S, B5S/B5, A4S/A4, B4, A3, A3 Wide, Post card S 5-1/2 X 8-1/2S/5-1/2 X 8-1/2, 8-1/2 X 11S/8-1/2 X 11, 8-1/2 X 14, 11 X 17, 12-1/4 X 18 Max.: 311.1 mm X 1200 mm 12.25 inch X 47.25 inch Min.: 90 mm X 139.7 mm 3.5 inch X 5.5 inch

Thick paper 1 + (121 to 157 g/m2) (32.25 to 41.75 lb) Thick paper 2 (158 to 209 g/m2) (42 to 55.5 lb) Special paper

Thick paper 3 (210 to 256 g/m2) (55.75 to 68 lb)

20 sheets

Thick paper 4 (257 to 300 g/m2) (68.25 to 72.75 lb) OHP film Post card Label

Y109321-8

Theory of Operation

Envelope

10 sheets

Long size paper

1 sheet

1

1. Product specification

Theory of Operation Ver. 1.0 Aug. 2007

JS-504

D. Offset function Exit tray

Lower tray

Shift amount

30 mm

Types of paper to be used

Plain paper, Thick paper 1/1+/2/3/4

Size

B5S/B5, A4S/A4, B4, A3 8-1/2 X 11S/8-1/2 X 11, 8-1/2 X 14, 11 X 17

E. Machine specifications Outline

Power requirements

DC 24 V ± 10 % (supplied from the main body) DC5 V ± 5 %

Max. power consumption

40 W or less

Dimensions

431 mm (W) X 540 mm (D) X 131 mm (H) 17 inch (W) X 21.25 inch (D) X 5.15 inch (H) 543 mm (W) X 477 mm (D) X 129.5 mm (H) *1 22 inch (W) X 21.25 inch (D) X 5.15 inch (H) *1

Weight

5.0 kg (11 lb)

*1: Size when the paper exit tray is pulled out F. Operating environment • Conforms to the operating environment of the main body. NOTE • These specifications are subject to change without notice.

2

Theory of Operation

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Theory of Operation Ver. 1.0 Aug. 2007

Exit to the Upper tray

Outline

2.1

Paper path JS-504

2.

2. Paper path

A0D5T1C101AA

2.2

Exit to the Lower tray

A0D5T1C102AA

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Theory of Operation

3

Theory of Operation Ver. 1.0 Aug. 2007

Outline

JS-504

2. Paper path

Blank Page

4

Theory of Operation

Y109321-8

Theory of Operation Ver. 1.0 Aug. 2007

3. Construction

Construction and operation Construction

JS-504

3.

Composition/Operation

A0D5T2C112AA

Upper tray Transport path switching mechanism

Lower tray

Paper shift mechanism A0D5T2C101AA

Upper tray exit sensor (PS2) Lower tray exit sensor (PS1) Route change home sensor (PS4)

Shift home sensor (PS6) A0D5T2C113AA

Front door sensor (PS3)

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Theory of Operation

5

4. Drive

Drive

JS-504

4.

Theory of Operation Ver. 1.0 Aug. 2007

JS control board (JSCB) Transport motor (M1)

Upper tray exit roller

Composition/Operation

Lower tray exit roller

Retraction motor (M3) A0D5T2C102AA

Shift motor (M2)

6

Theory of Operation

Y109321-8

Theory of Operation Ver. 1.0 Aug. 2007

5.1

Operation Transport/exit section

5.1.1

JS-504

5.

5. Operation

Paper transport

• The transport motor is energized a predetermined period of time after the paper has activated the paper exit sensor of the copier. • Drive of the transport motor rotates the exit roller, so that paper is transported into the corresponding tray.

Transport motor (M1)

Composition/Operation

Upper tray exit roller

Lower tray exit roller A0D5T2C103AA

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Theory of Operation

7

5. Operation 5.1.2

Theory of Operation Ver. 1.0 Aug. 2007 Transport path switching

JS-504

A. Overview • The paper path switching guide adequately switches the paper transport path to ensure that the paper is transported properly into the upper or lower tray as necessary. • The output tray is determined according to the setting made in Output Tray Setting of Administrator Setting and options of finishing, paper type, and paper size as selected for copy job setup. Output tray

Output Tray Setting

Finishing

Paper type

Paper size

Upper tray

Set to upper tray

–

Plain paper, Recycled paper

–

Lower tray

Set to lower tray

Sort

Plain paper, Recycled paper, Special paper

A3wide, A5 A6S, B6S

Composition/Operation

Upper tray

Paper path switching guide

Feeding from main body Lower tray

8

Theory of Operation

A0D5T2C106AA

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5. Operation

B. Operation • Drive from the route change motor moves the paper path switching guide up or down to select the output tray for the paper. • The route change home sensor detects the position of the paper path switching guide. Guide moving direction

Route change home sensor

Upper tray

Guide swung down

Unblocked

Lower tray

Guide swung up

Blocked

Composition/Operation

Output tray

JS-504

Theory of Operation Ver. 1.0 Aug. 2007

Route change motor (M3)

Paper path switching guide

Cam

A0D5T2C104AA

Route change home sensor (PS4)

Paper path switching guide

Guide swung down (to feed paper into upper tray)

Guide swung up (to feed paper into lower tray) A0D5T2C105AA

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Theory of Operation

9

JS-504

5. Operation

Theory of Operation Ver. 1.0 Aug. 2007

(1) Predrive • The route change motor is energized to move the paper path switching guide into a position for feeding paper into the lower tray when the copier is turned ON or released from the sleep mode, or a malfunction is reset. (2) Paper exit into the upper tray • The route change home sensor is used to determine the position, at which the paper path switching guide is stopped, so that the motion of the switching guide can be controlled as necessary. Route change home sensor

Paper path switching guide stop position

Unblocked

Paper fed into upper tray

Not applicable

Paper fed into lower tray

The route change motor is energized to move the paper path switching guide into the position, at which paper is fed into the upper tray.

Blocked

Control details

Composition/Operation

Paper path switching guide

Before switching

After switching A0D5T2C108AA

• Control for feeding paper into upper tray - paper path switching guide moved, feeding out two sheets of paper Exit sensor at copier Transport motor (M1) Route change home sensor(PS4) Route change motor (M3) Lower exit sensor (PS1) Upper exit sensor (PS2) Shift motor (M2) Shift home sensor (PS6)

[1] [2] [3]

[4] [5]

[6]

[7] A0D5T2C119AA

10

[1]

1st sheet of paper activating exit sensor of copier

[5]

2nd sheet of paper activating exit sensor of copier

[2]

Drive of route change motor started

[6]

2nd sheet of paper reaching upper tray

[3]

Drive of transport motor started

[7]

2nd sheet of paper fed out, transport motor deenergized

[4]

1st sheet of paper reaching upper tray

Theory of Operation

Y109321-8

5. Operation

(3) Paper exit into the lower tray • The route change home sensor is used to determine the position, at which the paper path switching guide is stopped, so that the motion of the switching guide can be controlled as necessary. Route change home sensor

Paper path switching guide stop position

Control details

Unblocked

Paper fed into upper tray

The route change motor is energized to move the paper path switching guide into the position, at which paper is fed into the lower tray.

Blocked

Paper fed into lower tray

Not applicable

JS-504

Theory of Operation Ver. 1.0 Aug. 2007

Before switching

After switching

A0D5T2C107AA

• Control for feeding paper into lower tray - paper path switching guide not moved, feeding out two sheets of paper Exit sensor at copier Transport motor (M1) Route change home sensor(PS4) Route change motor (M3) Lower exit sensor (PS1) Upper exit sensor (PS2) Shift motor (M2) Shift home sensor (PS6)

[1]

[2]

[3]

[4]

[5]

[6] A0D5T2C110AA

[1]

1st sheet of paper activating exit sensor of copier

[4]

2nd sheet of paper activating exit sensor of copier

[2]

Drive of route change motor started

[5]

2nd sheet of paper reaching lower tray

[3]

1st sheet of paper reaching lower tray

[6]

2nd sheet of paper fed out, transport motor deenergized

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Theory of Operation

11

Composition/Operation

Paper path switching guide

5. Operation

JS-504

5.1.3

Theory of Operation Ver. 1.0 Aug. 2007 Full-of-paper detecting mechanism

• Each tray is mounted with a tray paper full detect board that detects a full-of-paper condition of the tray. • The tray paper full detect board consists of a light emitter (LED) and a photoreceiver that are paired up to serve for each tray. The system determines that the tray is in a full-ofpaper condition when paper blocks the LED light. • When a full-of-paper condition is detected, the copier feeds paper being printed out and then stops, with a corresponding message shown on the control panel. • A stack of 150 sheets of plain paper (lower tray) is detected as a full-of-paper condition, excluding curled paper.

Upper tray paper full detect board/PR (T2FDTB/PR)

Composition/Operation

Upper tray paper full detect board/LED (T2FDTB/LED)

Lower tray paper full detect board/PR (T1FDTB/PR) Lower tray paper full detect board/LED (T1FDTB/LED) A083T2C514AA

12

Theory of Operation

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Theory of Operation Ver. 1.0 Aug. 2007

Paper shift section

5.2.1

Paper shift mechanism

• The shift section is shifted forward during paper exit so that print jobs can be offset, one job from another. • The shift section is moved by drive supplied from the shift motor. • The shift operation is executed when the sort function is used by the user. Shift section

Lower tray exit roller

Rear

Composition/Operation

Front

Shift direction A083T2C513AA

Shift home sensor (PS6)

Y109321-8

JS-504

5.2

5. Operation

Shift motor (M2)

Theory of Operation

13

5. Operation

JS-504

5.2.2

Theory of Operation Ver. 1.0 Aug. 2007 Shift operation overview

• The shift motor is energized to slide the shift section in a forward direction at a predetermined timing during paper exit into the lower tray after the trailing edge of the paper has moved past the exit roller of the copier. • The position of the shift section is controlled as detailed below. Shift section position

Position control

Shift home sensor

Home position – rearward

Shift home sensor output

Blocked

Shift position – forward

Shift motor speed (number of pulses)

(Unblocked)

• After the current sheet of paper has been fed out at the shift position, the shift section is returned to its home position before the next sheet of paper reaches the lower tray exit roller.

Shift section

Composition/Operation

Paper

Home position

Shift motor

Shift position A083T2C520AA

Shift home sensor

14

Theory of Operation

Y109321-8

Theory of Operation Ver. 1.0 Aug. 2007

5. Operation

JS-504

• 1st sheet of paper fed out normally with the 2nd sheet of paper fed out at shift position Exit sensor at copier Transport motor (M1) Route change home sensor(PS4) Route change motor (M3) Lower exit sensor (PS1) Upper exit sensor (PS2) Shift motor (M2) Forward rotation

Backward rotation

Shift home sensor (PS6)

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[1]

1st sheet of paper activating exit sensor of copier

[5]

2nd sheet of paper reaching lower tray

[2]

Drive of transport motor started

[6]

Shift operation for 2nd sheet of paper started

[3]

1st sheet of paper reaching lower tray

[7]

2nd sheet of paper fed out at shift position

[4]

1st sheet of paper fed out at normally position

Y109321-8

Shift section returned to its home position

Theory of Operation

15

Composition/Operation

A0D5T2C111AA

Theory of Operation Ver. 1.0 Aug. 2007

Composition/Operation

JS-504

5. Operation

Blank Page

16

Theory of Operation

Y109321-8

UPDATING STATUS

DATE

10/2008

UPDATED PAGES

1ST EDITION

PAGES

CODE

22

Y109321-8