Ricoh VT2100 S Service Manual vt2100

RICOH PRIPORT VT 2000 SERIES

(VT2100/2130/2150/2300/2500)

SERVICE MANUAL

SECTION 1

OVERALL MACHINE

INFORMATION

28 February ’91

1. SPECIFICATIONS

VT2300/VT2500

Configuration: Desktop Master processing: Digital Printing process: Full automatic one drum stencil system Original type: Sheet Original size: Maximum 307 mm x 432 mm (12.0" x 17.0")

Minimum 90 mm x 140 mm (3.6" x 5.5")

Reproduction ratios: 3 Enlargement and 3 Reduction

LT Version A4 Version

Enlargement 141% 141%

127% 122%

115% 115% Full Size 100% 100% Reduction 93% 93%

75% 82%

64% 71%

Image mode: Line/Photo Color Printing: Drum Unit replacement system Master feed/eject: Roll master automatic feed/eject Printing area: Maximum: 250 mm x 350 mm (9.8" x 13.7") at

20°C/ 65 % RH.

Leading edge margin:

± 3 mm at "0" position

Print paper size: Minimum: 90 mm x 148 mm (3.6" x 5.8")

Maximum: 325 mm x 447 mm (12.8" x 17.6")

Print paper weight: 50 g/m

to 215 g/m

Printing speed: 60, 75, 90, 105, 120 sheets/minute (5 steps)

1-1

28 February ’91

First print time: 34.5 seconds (B4 size)

31.5 seconds (A4 Size)

Paper feed table

1000 sheets (66.3 g/m

/17.6 lb)

capacity:

Paper delivery table

500 sheets (66.3 g/m

/ 17.6 lb)

capacity:

Power source: 110V, 60 Hz.....................6.0A

120 V, 60 Hz....................5.5 A

220/240 V, 50/60 Hz........2.7 A

Power consumption: 110/120 V version: 430 W

220/240 V version: 470 W

Weight: 120 V version: 102 kg (224.8 lb)

220/240 V version: 107 kg (235.8 lb) Optional Table: 26 kg (57.3 lb)

Dimensions: (W x D x H)

Stored: 735 mm x 607 mm x 577 mm (29.0" x 23.9" x 22.8") Set up: 1279 mm x 607 mm x 656 mm (50.4" x 23.9" x 25.9") Table: 640 mm x 570 mm x 455 mm (25.2" x 22.4" x 17.9")

ADF original capacity: 20 sheets (66 g/m Original guide width

98 mm to 316 mm (38.6" to 12.44")

) or 1.8 mm height

settings: Original scanning time: 3 ms/1 line Original thickness: 0.05 mm to 0.8 mm Original feed speed: 20.8 mm/second (When master processing)

41.7 mm/second (When not master processing) Pixel density: 16 dots/mm Master eject box

capacity:

25 masters (Normal condition) 20 masters (10°C/30% RH Condition)

Paper feeding: Friction roller/center separation system

1-2

28 February ’91

Feed table side plate

88 mm to 330 mm (3.46" to 12.99")

width settings: Paper feed roller

pressure: Separation roller

pressure: Side registration: Vertical registration:

Normal position................250 g

Thick paper position.........550 g

Normal position................180 g

Weak position ..................70 g

± 10 mm (manual) ± 20 mm (mechanical)

Ink Supply: Automatic ink supply system Press roller pressure:

± 0.3 kg

10 Paper Delivery: Air knife/vacuum delivery Delivery side plate width

80 mm to 320 mm (3.15" to 12.6") settings:

Print counter: 7 digits Master counter: 6 digits Supplies:

Priport Thermal master 280 mm width Master VT-M: (16 dots/mm)

Master roll 250 masters/1 roll

Roll diameter 130 mm

Master length 480 mm/1 master

Max run length 2000 prints

Ink Colors: Black, Red, Blue, Green, Brown (500 cc/pack)

1-3

28 February ’91

VT2100 Series (VT2100, VT2130, VT2150)

Configuration: Desk top Master processing: Digital Printing process: Full automatic one drum stencil system Original type: Sheet Original size: Maximum 307 mm x 432 mm (12.0" x 17.0") Reproduction ratios: LT version: 100 %, 93 %, 75 %, 64 %

A4 version: 100 %, 93 %, 82 %, 71 % Image mode: Line/Photo Color printing: Drum unit replacement system Master feed/eject: Roll master automatic feed/eject Master processing area: VT2100: Maximum 256 mm x 354 mm

(10.1" x 13.9")

VT2130: Maximum 216 mm x 354 mm

(8.5" x 13.9")

VT2150: Maximum 216 mm x 287 mm

(8.5" x 11.3") Printing area: VT2100: Maximum 250 mm x 350 mm

(9.8" x 13.7") at 20°C/65 % RH

VT2130: Maximum 210 mm x 350 mm

(8.3" x 13.7") at 20°C/65% RH

VT2150: Maximum 210 mm x 283 mm

(8.3" x 11.1") at 20°C/65% RH Leading edge margin: 10 mm Print paper size: Minimum 90 mm x 148 mm (3.6" x 5.8")

Maximum 297 mm x 442 mm (11.6" X 17.4") Print paper weight: 50 g/m

to 215 g/m

Print speed: 60, 75, 90, 105, 120 sheets/minute (5 steps) First print time: VT2100: 35 seconds (B4 size)

VT2130: 35 seconds (LG size)

VT2150: 31 Seconds (A4 size)

1-4

Paper feed table capacity 1000 sheets (66.3 g/m2 / 17.6 lb)

Paper delivery table

500 sheets (66.3 g/m

/ 17.6 lb)

capacity:

Power source: 220/240V, 50/60 Hz.........2.7A

120V, 60 Hz.....................5.5 A

110V, 60 Hz.....................6.0 A

Power consumption: 110/120 V version: 430 W

220/240 V version: 470 W Weight: 110/120 V version: 100 kg (220.4 lb)

220/240 V version 105 kg (233.7 lb)

Optional table: 26 kg (57.3 lb)

28 February ’91

Dimensions: (W x D x H)

When stored: 735 mm x 607 mm x 569 mm

(29.0" x 23.9" x 22.4")

When set up: 1279 mm x 607 mm x 656 mm

(50.4" x 23.9" x 25.9")

Table only: 640 mm x 570 mm x 455 mm

(25.2" x 22.4 x 17.9") Original guide

98 mm to 316 mm (38.6" to 12.44") width-settings:

Original scanning time: 3 ms/1 line Original thickness: 0.06 mm to 0.5 mm Original feed speed: 20.8 mm/second Pixel density: 16 dots/mm Master eject box

capacity:

25 masters (at normal conditions)

20 masters (at 10°C/30 % RH) Paper feeding: Friction roller/center separation system Feed table side plate

width settings: Paper feed roller

pressure: Separation roller

pressure:

88 mm to 317 mm (3.46" to 12.48")

Normal position ...............250 g

Thick paper position.........550 g

Normal position................180 g

Weak position ..................70 g

1-5

28 February ’91

Side registration: Vertical registration: Paper table raising /

lowering speed:

±10 mm (manual)

±20 mm (mechanical)

22 mm/second (50 Hz)

26 mm/second (60 Hz) Ink supply: Automatic ink supply system Pressure roller pressure:

± 0.3 kg

10 Paper delivery: Air knife/vacuum delivery Delivery side plate

80 mm to 320 mm (3.15" to 12.6") width settings:

Print counter: 7 digits Master counter: 6 digits Supplies:

Priport Master VT-M for VT2100: (16 dots/mm) Thermal master 280 mm width

Master roll 250 masters/1 roll

Master length 480 mm/1 master

Max run length 2000 prints

Priport Master VT-S for VT2130/VT2150:

Thermal master 240 mm width

Max run length 2000 prints

VT2130: Master roll 250 masters/1 roll

Master length 480 mm/1 master

VT2150: Master roll 300 masters/1 roll

Master length 413 mm/1 master

Ink: 500 cc ink pack Colors: Black, Red, Blue, Green, Brown

1-6

---- MEMO ----

28 February ’91

1-7

28 February ’91

2. GUIDE TO COMPONENTS AND THEIR FUNCTIONS

(Paper Feed Side)

1 2 3

1-8

No. Name Function

28 February ’91

1. ADF Unit

(VT2300/2500)

2. ADF Unit Open

Feeds the original to the printing position automatically.

Use to open the ADF unit. Button (VT2300/2500)

3. Original Guides Adjust these guides to position the originals correctly.

4. Original Table Place the originals on this table.

5. Original Table

Release Lever

6. Feed Roller

Pressure Lever

7. Separation Roller

Pressure Lever

8. Paper Feed Side

Use to open the original table unit to the left for master installation. Use to adjust the contact pressure of the paper feed roller according to paper thickness. Use to adjust the separation roller pressure to prevent double feed. Use to prevent paper skew.

Plate

9. Paper Feed Table Set the paper on this table.

10. Side Plate Fine

Use to shift the paper feed table sideways.

Adjusting Dial

11. Front Door Open for access to the inside of the machine.

12. Paper Delivery Table Completed prints are delivered here.

13. Operation Panel Operator controls and indicators are located here.

14. ADF On/Off Select

Switch

When setting originals one sheet at a time, set this switch to the Off position.

(VT2300/2500)

15. Original Tray Originals used to make a master are delivered to this tray.

1-9

28 February ’91

(Paper Delivery Side)

16 17 18

1-10

28 February ’91

No. Name Function

16. Master Cut Button Press this button to cut the master paper leading edge after installing a new master roll.

17. Pressure Release

Lever

18. Drum Rotating

Button

Use to install the master roll, or to clean the thermal head. Press to replace the drum or to remove misfed paper.

19. Drum Unit The master paper is wrapped around this unit.

20. Ink Holder Set the ink cartridge in this holder.

21. Main Switch Use to turn the power on or off.

22. Small Size Paper

Delivery End Plate

Use to align the leading edge of small-sized (less than A4/LT) prints.

(for smaller than A4/LT)

23. Paper Delivery End

Plate (for larger

Use to align the leading edge of prints larger than A4/LT.

than A4/LT)

24. Paper Delivery

Use to align the prints on the paper delivery table.

Side Plate

25. Master Eject

Open when removing the master eject container.

Container Cover

26. Memory/Class switch

Use to select memory or class mode.

(VT2300/2500)

27. Skip Paper Feed

Switch (VT2300/2500) Printing Density Select Switch

Use to adjust paper feed interval or a misted master. Use to select the printing density according to the type and quality of the original.

(VT2100/2130/2150)

28. Master Eject Unit

Press to remove misfed paper or a misfed master.

Open Button

1-11

28 February ’91

3. OPERATION PANEL

VT2300/VT2500

1. Reset Key Press to reset error indicators.

2. Make-up Key Press to use the make-up function (VT2500 only).

3. Number Keys Press to enter the number of prints.

4. Stop Key Press to stop the machine operation. The machine

5. Clear Modes Key Press to cancel all previously entered settings and

6. Master Making Key

7. Print Start Key Press to start printing.

8. Proof Key Press to make trial prints or extra prints.

9. Clear Key Press to change the number set in the counter.

10. Memory/Class Key Use to select group printing in Memory mode or

11. Lower Paper Feed Table Key

12. Image Position Keys

19 18

will continue operation when the Print Start key or Master Making key is pressed.

modes. Press to make a master.

Also use to change the make-up mode (VT2500 only). This key can be used only after the machine stops operation.

Class mode. Press to lower the paper feed table.

Press to shift the image forwards or backwards on the print paper.

1417

1-12

28 February ’91

111213

910

8 7 6

13. Speed Keys Press to adjust the rotation speed of the machine according to the type of image and printing paper.

14. Auto Cycle Key Use to automatically process masters and make prints.

15. Full Size Key Press to make prints the same size as the original.

16. Reduce/Enlarge

Press to reduce or enlarge the image.

Key

17. Printing Density

Press to make prints darker or lighter.

Key

18. Image Mode Key Press to select line mode or photo mode according

to the type and quality of the original.

19. Combine 2

Originals Key

Press to combine two originals onto one print image.

20. Monitors Light or blink when a non-standard condition occurs within the machine.

1-13

28 February ’91

VT2100/VT2130/VT2150

1 2 3 4

18 17

1. Reset Key Press to reset error indicators.

2. Indicators Light or blink when a non-standard condition

occurs within the machine.

3. Auto Cycle Key Use to automatically process masters and make prints.

4. Reduction Key Press to reduce the image.

5. Image Position

Keys

Press to shift the image forwards or backwards on the print paper.

6. Number Keys Press to enter the number of prints.

7. Counter Displays the number of prints entered. While

printing, it shows the number of uncompleted prints.

8. Memory Display Displays the number of the memory location that will be used to store the number of copies. The print number for up to 10 jobs can be stored at once.

9. Print Start Key Press to start printing.

10. Master Making

Press to make a master.

Key

11. Proof Key Press to make trial prints or extra prints.

12. Stop Key Press to stop the machine operation. The machine

will continue operation when the Print Start key or Master Making key is pressed.

1-14

28 February ’91

5 6

14 13 12

7 8

1110

13. Memory Key Use to select memory location number.

14. Clear Key Press to change the number set in the counter.

This key can be used only after the machine stops operation.

15. Speed Keys Press to adjust the rotation speed of the machine according to the type of image and printing paper.

16. Image Mode Key Press to select line mode or photo mode according to the type and quality of the original.

17. Combine 2

Originals Key

18. Lower Paper Feed

Press to combine two originals onto one print image. Press to lower the paper feed table.

Table Key

1-15

28 February ’91

4. PRINTING PROCESS

1. Master Ejecting: Eject the used master wrapped around the drum into the master eject box.

2. Scanning: Scan the original image by CCD through the mirror and the lens while feeding the original.

3. Master Feeding: Convert the image signal read by CCD into the digital signal and send it to the thermal head to make holes on the surface of the master and then, set the master around the drum.

4. Paper Feeding: Send paper to the drum section by using center separation system consisting of the separation plate and separation roller.

5. Printing: Press the paper fed from the paper feed section to the drum to transfer the ink through drum screen and the master.

6. Paper Delivering: Peel the printed paper with the Exit Pawl and Air knife and eject the paper onto the paper delivery table.

1-16

5. ELECTRICAL COMPONENT LAYOUT

28 February ’91

10 11

1. Original Registration Sensor

2. 2nd Original Sensor

3. Original Pressure Solenoid (VT2300/VT2500)

4. Original Transport Motor

5. Fluorescent Lamp Stabilizer

6. Right Cutter Switch

7. Power Supply PCB

8. Thermal Head Drive Control PCB

9.Thermal Head

10. Master End Sensor

11. Master Feed Motor

12. Paper Size Detection Sensor 3 (VT2300/VT2500)

13. Paper Size Detection Sensor 2 (VT2300/VT2500)

14. Paper Size Detection Sensor 1 (VT2300/VT2500)

15. Paper Size Detection Board (VT2300/VT2500)

16. Cutter Motor

17. Left Cutter Switch

18. Master Buckle Sensor

19. Master Eject Motor

20. Master Eject Solenoid

21. Master Box Switch

22. Master Eject Sensor

23. ADF Drive Motor (VT2300/VT2500)

24. 1st Original Sensor (VT2300/VT2500)

25. Fluorescent Lamp

1-17

28 February ’91

26. Master Eject Clamper Solenoid

27. Ink Detection PCB

28. Master Feed Clamper Solenoid

29. Master Eject Unit Safety Switch

30. Image Shift Motor

31. Reverse Roller Solenoid

32. Encoder

33. 1st Drum Position Sensor

34. 2nd Drum Position Sensor

35. Paper Feed Solenoid

36. Paper Table Drive Motor

37. Drum Rotation Sensor

38. Main Motor

39. Printing Pressure Solenoid

40. AC Drive PCB

41. 1st Paper Exit Sensor

42. 2nd Paper Exit Sensor

1-18

28 February ’91

50 51 52 53 54 55 56

57 58

5960

43. CCD PCB

44. A/D Conversion PCB

45. Master Cutter Switch

46. Scanner Safety Switch

47. Drum Master Detection Sensor (VT2300/VT2500)

48. Operation Panel

49. Drum Rotation Switch

50. Front Door Safety Switch

51. Drum Safety Switch

52. Ink Supply Solenoid

53. Main Control Board

54. Paper Table Height Sensor

55. Image Processing PCB

56. Drum Lock Solenoid

57. Paper End Sensor

58. Paper Table Safety Switch

59. Paper Table Lower Limit Sensor

60. Printing Pressure Sensor

61. Copy Counter

62. Master Counter

63. Interlock Switch

64. Circuit Breaker

65. Main Switch

66. Air Knife Motor

67. Vacuum Motor

68. Full Master Detecting Switch

69. Pressure Plate Position Switch

70. Memory/Class Switch (VT2300/VT2500)

71. Skip Paper Feed Switch (VT2300/VT2500) Printing Density Switch (VT2100 /VT2130/VT2150)

72. A.D.F. Safety Switch (VT2300/VT2500)

1-19

28 February ’91

6. ELECTRICAL COMPONENT DESCRIPTIONS

INDEX

No.

Motors

4 Original Transport Motor Transports the original to the scanner

11 Master Feed Motor Feeds the master to the drum. E-3 16 Cutter Motor Cut the master. F-6 19 Master Eject Motor Sends used master into the master

23 ADF Drive Motor Feeds the original to the scanner

30 Image shift Motor Changes the timing between the paper

36 Paper Table Drive Motor Raises and lowers the paper table. F-5 38 Main Motor Drives paper feed, drum, printing and

66 Air Knife Motor Rotates the fan to separate the paper

67 Vacuum Motor Provides suction so paper is held firmly

Solenoids

3 Original Pressure Solenoid Presses the original pressure plate

20 Master Eject Solenoid Moves the master eject roller to contact

26 Master Eject Clamper

Solenoid

28 Master Feed Clamper

Solenoid

31 Reverse Roller Solenoid Releases the clutch to rotate the

35 Paper Feed Solenoid Releases the paper feed sector gear to

39 Printing Pressure Solenoid Moves the press roller against the drum. F-8 52 Ink Supply Solenoid Releases the spring clutch to activate

56 Drum Lock Solenoid Prevents removal of the drum unit

NAME FUNCTION P to P

LOCATION

section.

eject box.

section.

feed roller and the drum to adjust vertical image position.

paper delivery unit components.

leading edge from the drum.

on the transport belt.

down on the originals.

the drum surface. Opens the master clamp to eject the

master. Opens the master clamp to clamp the

master.

reverse roller.

rotate the paper feed roller.

the ink supply pump.

unless the drum is at the original stop position (This solenoid can be used on the VT2300/VT2500).

(VT2300/2500

A-4

F-7

A-4

only)

F-8

F-4

F-7

F-5

A-4

only)

F-6

F-8

F-6

F-8

F-7

1-20

28 February ’91

INDEX

No.

NAME FUNCTION P to P

LOCATION

Switches

6 Right Cutter Switch Detects when the cutter position is far

right.

17 Left Cutter Switch Detects when the cutter position is far

left.

21 Master Box Switch Checks whether the master eject box is

installed correctly or not.

(VT2300/2500)

(VT2100/2130

29 Master Eject Unit Safety

Switch

Checks whether the Master Eject Unit is closed correctly or not.

45 Master Cut Switch Informs the CPU to cut the master

paper leading edge.

(VT2300/2500)

(VT2100/2130

46 Scanner Safety Switch Checks whether the scanner unit is

closed correctly or not.

49 Drum Rotation Switch Informs the CPU to rotate the main

motor at 10 rpm.

50 Front Door Safety Switch Checks whether the Front Door is set

correctly or not.

51 Drum Safety Switch Checks whether the drum unit is set

correctly or not.

58 Paper Table Safety Switch Checks whether the paper table is

opened correctly or not. 63 Interlock Switch Releases the cover safety functions. F-4 65 Main Switch Turns the power on or off. B-1 68 Full Master Detecting

Switch

Informs the CPU when the master eject

box is full of masters.

(VT2300/2500)

(VT2100/2130

69 Pressure Plate Position

Switch

Informs the CPU when the pressure

plate has reached the home position.

(VT2300/2500)

(VT2100/2130

70 Memory/Class Switch Selects Memory or Class mode. C-4

(VT2300/2500

F-6

F-7 F-6

/2150)

F-4

F-8 F-7

/2150)

F-4

A-6

F-4

B-6

F-4

F-7 F-6

/2150)

F-7 F-6

/2150)

only)

1-21

28 February ’91

INDEX

No.

71 Skip Paper Feed Switch

(VT2300/VT2500) Printing Density Switch (VT2100 series)

72 ADF Safety Switch Check whether the ADF unit is set

Sensors

1 Original Registration

Sensor

2 2nd Original Sensor Detects when the original is set. A-3 10 Master End Sensor Informs the CPU when the plotter unit

12 Paper Size Detection

Sensor 3

13 Paper Size Detection

Sensor 2

NAME FUNCTION P to P

LOCATION

Adjusts paper feed interval to allow time for user to remove prints. Use to select the printing density according to the type and quality of the original.

correctly or not.

Informs the CPU when the original leading edge reaches the exposure glass.

runs out of master roll. Detects the size of the paper set on the

paper table.

Detects the size of the paper set on the paper table.

(VT2300/2500)

(VT2100/2130

(VT2300/2500

C-4 C-3

/2150)

B-4

only)

A-3

F-6

E-5

only)

E-5

only)

14 Paper Size Detection

Sensor 1

18 Master Buckle Sensor Detects the master buckle existence. F-6 22 Master Eject Sensor Detects when the used master is sent

24 1st Original Sensor Detects when the original is set in the

33 1st Drum Position Sensor Checks the position of the drum. F-8 34 2nd Drum Position Sensor Checks the position of the drum. F-8 37 Drum Rotation Sensor Supplies timing pulses to the main

41 1st Paper Exit Sensor Misfeed detector. A-5 42 2nd Paper Exit Sensor Misfeed detector. A-5 47 Drum Master Detection

Sensor

54 Paper Table Height

Sensor

Detects the size of the paper set on the paper table.

into the master eject box.

ADF mode.

board.

Checks whether the master is on the drum.

Detects when the paper table reaches the paper feed position.

E-5

(VT2300/2500

only)

F-7

(VT2300/2500)

F-6

(VT2100/2130

/2150)

A-4

(VT2300/2500

only)

F-8

F-6

(VT2300/2500

only)

A-6

1-22

28 February ’91

INDEX

No.

57 Paper End Sensor Informs the CPU when the paper table

59 Paper Table Lower Limit

Sensor

69 Printing Pressure Sensor Informs the CPU when the printing

Printed Circuit Board

7 Power Supply PCB Rectifies 100V AC input and supplies

8 Thermal Head Drive

Control PCB

27 Ink Detection PCB Control the ink supply. F-7 40 AC Drive PCB Controls the AC component by relays. E-5 43 CCD PCB Converts the light intensity into the

44 A/D Conversion PCB Converts the analogue signal into the

48 Operation Panel Controls the LED performance and

53 Main Control PCB Controls all machine functions both

55 Image Processing PCB Controls the master processing

Printed Circuit Board

15 Paper Size Detection

Board

Counters

61 Copy Counter Keeps track of the total number of

62 Master Counter Keeps track of the total number of

Others

5 Fluorescent Lamp

Stabilizer 9 Thermal Head Plots the master with heat. F-2 25 Fluorescent Lamp Applies light to the original for exposure. A-3 32 Encoder Converts 16 image positions to 4 bit

64 Circuit Breaker Cuts the ac line off. B-1

NAME FUNCTION P to P

LOCATION

runs out of paper.

Detects when the paper table reaches the lowest position.

pressure is applied.

DC voltage. Supplies the power to the Thermal

Head according to the signal from the scanner section.

electrical signal.

digital signal.

monitors the key operation.

directly and through other boards.

performance.

Detects the size of the paper set on the table.

copies made.

masters made.

Stabilizes the power supplement to the Fluorescent Lamp.

data.

(VT2300/2500)

(VT2100/2130

(VT2300/2500

F-5 B-6

/2150)

A-6

D-1

E-2

A-2

B-3

A-8

C-6

C-3

E-5

only)

A-7

B-3

F-7

1-23

28 February ’91

7. MECHANICAL COMPONENT LAYOUT

17 16 15 1413 109 8 7 6 5 4

19 20

21 22

23 24

1. Thermal Head

2. Platen Roller

3. Master Feed Roller

4. CCD

5. Lens

6. Reverse Roller

7. Ink Roller

8. Drum Unit

9. 1st Eject Roller

10. 2nd Eject Roller

1211

333231302928272625

21. Mirror

22. Master Eject Box

23. Exit Pawl

24. Air Knife

25. Delivery Table

26. Delivery Guide Plate

27. Vacuum Unit

28. Press Roller

29. Doctor Roller

30. 2nd Feed Roller

2 1

37 36

11. Original Pressure Plate (2300/2500)

12. Pull-out Roller (2300/2500)

13. Separation Blade (2300/2500)

14. Original Feed Roller (2300/2500)

15. 1st Original Transport Roller

16. Exposure Grass

17. 2nd Original Transport Roller

18. Fluorescent Lamp

19. Original Exit Tray

20. Feed Sub Mirror

31. Lower Separation Roller

32. Separation Plate

33. Paper Feed Side Plate

34. Paper Feed Table

35. Paper Feed Roller

36. Upper Separation Roller

37. Ink Holder

38. Master Spool

1-24

SECTION 2

SECTIONAL DESCRIPTION

1. ORIGINAL FEED SECTION

1.1 OVERALL: VT2300/VT2500

[I] [G] [E] [B] [A]

28 February ’91

[J] [K] [L] [D] [C]

[J]: 2nd Original Transport Rollers [K]: Exposure Glass [L]: Fluorescent Lamp

There are two original feed modes in this model.

ADF Mode: The originals [I] set on the original table are detected by the

1st original sensor [A]. When the Master Making key is pressed, the original pressure plate [B] presses the originals down. The pull-out roller [C] starts moving the lowest original forward at the same time. The lowest original is separated from the other originals by the original feed roller [D] and the separation blade [E]. When the 2nd original sensor [F] detects the original, the 1st original transport rollers [G] start rotating. The rollers stop after the original activates the original registration sensor [H]. The 1st original transport rollers start rotating again after the drum section completes the preparation for the master making.

[F][H]

SADF Mode: The separation blade [E] is released in the SADF mode. The

original on the original table is fed to the starting position when the 2nd original sensor [F] detects the original.

2-1

28 February ’91

1.2 OVERALL: VT2100/VT2130/VT2150

[I] [G]

[J] [K] [L] [H] [F]

[J]: 2nd Original Transport Rollers [K]: Exposure Glass [L]: Fluorescent Lamp [H]: Original Registration Sensor

The original [I] set on the original table is detected by the 2nd original sensor [F]. At the same time, the 1st original transport rollers [G] and 2nd original transport rollers [J] start rotating and feed the original to the original start position where is 12 mm far from the guide plate. The original transport rollers start rotating again after the drum section completes the preparation for the master making.

2-2

28 February ’91

1.3 ORIGINAL FEED DRIVE MECHANISM: VT2300/VT2500

[J]

[A]

[B]

(f)

(e)

[C]

(c)(d)

(b)

[D]

[E]

(a)

[I]

[H]

[G]

[F]

[J] [D]

The original transport rollers [A] are driven by the original transport motor [B], which is a stepper motor. The original feed rollers [J] are driven by the ADF drive motor [C] through a series of gears [(a) to (f)]. The ADF drive motor is a dc motor. The pull-out rollers [D] are driven by the ADF motor through a drive belt [E].

The original pressure plate [F] is pressed down on the originals by the original pressure solenoid [G]. The separation blade [H] is moved up and down by the ADF ON/OFF select switch [I].

2-3

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Ricoh VT2100 S Service Manual vt2100

Specifications and Main Features

Frequently Asked Questions

User Manual

VT2300/VT2500

VT2100 Series (VT2100, VT2130, VT2150)

VT2300/VT2500

VT2100/VT2130/VT2150