Ricoh pearl SPECIFICATIONS

SERVICE MANUAL

(Machine code: C229)

IMPORTANT SAFETY NOTICES

PREVENTION OF PHYSICAL INJURY

1. Before disassembling or assembling parts of the printer and peripherals, make sure that the power cord is unplugged.

2. The wall outlet should be near the printer and easily accessible.

3. If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components.

HEALTH SAFETY CONDITIONS

1. If you get ink in your eyes by accident, try to remove it with eye drops or flush with water as first aid. If unsuccessful, get medical attention.

2. If you ingest ink by accident, induce vomiting by sticking a finger down your throat or by giving soapy or strong salty water to drink.

OBSERVANCE OF ELECTRICAL SAFETY STANDARDS

1. The printer and its peripherals must be installed and maintained by a customer service representative who has completed the training course on those models.

CAUTION

The RAM has a lithium battery which can explode if handled incorrectly. Replace only with the same type of RAM. Do not recharge or burn this battery. Used RAM's must be handled in accordance with local regulations.

ATTENTION

La carte RAM comporte une pile au lithium qui présente un risque d'explosion en cas de mauvaise manipulation. Remplacer la pile uniquement par une carte RAM identique. Ne pas recharger ni brûler cette pile. Les cartes RAM usagées doivent être éliminées conformément aux réglementations locales.

SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL

1. Dispose of replaced parts in accordance with local regulations.

2. Used ink and masters should be disposed of in an environmentally safe manner and in accordance with local regulations.

3. When keeping used lithium batteries (from the main processing units) in order to dispose of them later, do not store more than 100 batteries (from the main processing units) per sealed box. Storing larger numbers or not sealing them apart may lead to chemical reactions and heat build-up.

IMPORTANT SAFETY NOTICES

PREVENTION OF PHYSICAL INJURY

1. Before disassembling or assembling parts of the printer and peripherals, make sure that the power cord is unplugged.

2. The wall outlet should be near the printer and easily accessible.

3. If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components.

HEALTH SAFETY CONDITIONS

1. If you get ink in your eyes by accident, try to remove it with eye drops or flush with water as first aid. If unsuccessful, get medical attention.

2. If you ingest ink by accident, induce vomiting by sticking a finger down your throat or by giving soapy or strong salty water to drink.

OBSERVANCE OF ELECTRICAL SAFETY STANDARDS

1. The printer and its peripherals must be installed and maintained by a customer service representative who has completed the training course on those models.

CAUTION

ATTENTION

SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL

1. Dispose of replaced parts in accordance with local regulations.

2. Used ink and masters should be disposed of in an environmentally safe manner and in accordance with local regulations.

1 July, 1998 SPECIFICATIONS

1. OVERALL INFORMATION

1.1 SPECIFICATIONS

Configuration: Desktop

Master Processing: Digital with 400 dpi thermal head

Scanning (Pixel Density): 400 dpi CCD

Printing Process: Fully automatic stencil system, with one drum and

pressure cylinder system

Original Type: Sheet/Book

In Platen Mode: Document size:

Maximum 304.8 x 432 mm [12.0" x 17.0"] Thickness: Less than 30 mm Weight: Less than 10 kg

In ADF Mode: Document size:

Maximum 297 x 864 mm [11.6" x 33.8"]

Minimum 105 x 128 mm [4.2" x 5.1"]

Document weight:

52.3 - 104.7 g/m2[14 - 28 lb]

Overall

Information

ADF capacity:

30 sheets (using 20 lb or 80 g/m2 paper)

Reproduction Ratios: Inch versions Others

Full Size: 100% 100%

Reduction: 65% 71%

74% 82% 77% 87% 93% 93%

Enlargement: 121% 115%

129% 122% 155% 141%

Zoom: 50 - 200% (by 1%) in Platen mode

50 - 155% (by 1%) in ADF mode

Directional Magnification:

50 - 200% (by 1%)

Image Modes: Letter, Photo, Letter/Photo, Pencil, Tint

1-1

SPECIFICATIONS 1 July, 1998

Printing Area:

(At 20 °C/ 65 % RH)

Metric size version models:

290 mm x 409 mm

Inch size version models:

290 mm x 419 mm [11.4" x 16.4"]

With optional A4 drum:

290 mm x 204 mm [11.4" x 8.0"]

Edge Margins: Leading edge:

10 mm (At the "0" position of Image Shift mode)

Trailing edge: 2 mm

Print Paper Size: Minimum: 70 mm x 148 mm [2.8" x 5.9"]

Maximum: 325 mm x 447 mm [12.7" x 17.6"]

Print Paper Weight: 47.1 g/m2 to 209.3 g/m2 [12.5 lb to 55.6 lb]

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

Master Process Time: Platen mode:

Less than 15.5 seconds (A3 paper)

Less than 12 seconds (A4 paper)

ADF mode:

Less than 19.5 seconds (A3 paper)

Less than 16 seconds (A4 paper)

Master Eject Box Capacity: 60 masters / A3 size (Normal conditions)

Side Registration Adjustable

± 10 mm

Range:

Vertical Registration Adjustable Range:

Inch size version models:

± 10 mm

Metric size version models:

± 15 mm

Paper Feed Table Capacity: 1000 sheets (80 g/m2 / 20 lb)

Paper Delivery Table Capacity: 1000 sheets (80 g/m2 / 20 lb)

Power Source: 110/120 V, 50/60 Hz: 2.7 A

220 - 240 V, 50/60 Hz: 1.5 A

Maximum Power Consumption: 110/120 V version: 285 W

220 - 240 V version: 280 W

1-2

1 July, 1998 SPECIFICATIONS

Noise Emission:

(At operation position)

At 60 rpm printing speed: 57 dB At 90 rpm printing speed: 60 dB At 120 rpm printing speed: 64 dB

Weight: 94 kg [207 lb]

101 kg [222.7 lb] with ADF

Dimensions: (Width x Depth x Height)

Trays closed: 625 mm x 650 mm x 574 mm

With ADF: 625 mm x 650 mm x 684 mm

Trays open: 1405 mm x 650 mm x 574 mm

With ADF: 1405 mm x 650 mm x 684 mm

Master Type: Thermal master roll type:

420 mm width, 110 m / roll

Yield:

200 masters/roll (at A3 size)

Max run length per master:

2,000 prints

Master Storage Conditions: Temperature:

-10 °C to 40 °C

Overall

Information

Humidity:

10% to 95% RH

Recommended maximum storage period:

One year after production date

* Avoid locations exposed to direct sunlight.

Ink Type 1000 ml cartridge type

Available colors:

Black, Red, Blue, Green, Brown

Ink Storage Conditions: Temperature:

-5 °C to 40 °C

(Optimum conditions: 15 °C to 25 °C)

Humidity:

10% to 95% RH

(Optimum conditions: 20% to 70% RH)

Recommended maximum storage period:

One year after production date

* Avoid locations exposed to direct sunlight.

1-3

SPECIFICATIONS 1 July, 1998

Available Options

· A3 Drum

· A4 Drum

· Document Feeder

· Key Counter

· Memory Board (Editing Function)

· PC Controller

· Interface Board (Standard for the U.S.A and

European versions)

1-4

1 July, 1998 GUIDE TO COMPONENTS AND THEIR FUNCTION

1.2 GUIDE TO COMPONENTS AND THEIR FUNCTION

1.2.1 MACHINE EXTERIOR

Overall

Information

1. Front Door

2. Flip-up Cover

3. Operation Panel

4. Master Feed Unit

5. Paper Feed Tray Down key

6. Paper Feed Side/End Plates

7. Paper Feed Tray

8. Paper Feed Side/End Plate Knob

C229V500.WMF

Open for access to the inside of the machine.

Open to access the Image Density key and so on.

Operator controls and indicators are located here.

Open the master feed unit when installing the master.

Press to lower the paper feed tray.

Use to prevent paper skew.

Set paper on this tray for printing.

Use to move the side/end plates.

1-5

MACHINE INTERIOR 1 July, 1998

1.3 MACHINE INTERIOR

1-6

C229V501.WMF

1 July, 1998 MACHINE INTERIOR

1. Main Switch

2. Paper Alignment Wing Knobs

3. Paper Alignment Wings

4. Paper Delivery End Plate

5. Paper Delivery End Plate Knob

6. Paper Delivery Tray

7. Paper Delivery Side Plates

8. Paper Delivery Side Plate Knobs

9. Master Eject Unit Front Handle E1

10. Ink Holder

11. Drum Unit Lock Lever B1

Use to turn the power on or off.

Use to lift or lower the paper alignment wings.

Lift or lower the wings depending on the paper type you use.

This plate aligns the leading edge of prints.

Use to move the end plate.

Completed prints are delivered here.

These plates align the prints on the paper delivery tray.

Use to move the side plates.

Use to pull out the master eject unit.

Set the ink cartridge in this holder.

Lower to unlock and pull out the drum unit.

Overall

Information

12. Drum Unit

13. Exposure Glass (Contact Glass)

14. Platen Cover

15. Trailing Edge Guides

The master is wrapped around this unit.

Position originals here face down for printing.

Lower this cover over an original before printing.

Swing out these guides when you use A4, 8

1/2

" x 11" sideways, or B5 lengthwise

paper.

1-7

MACHINE INTERIOR 1 July, 1998

1.3.1 OPERATION PANEL

1. Quality Start key

2. Security key

3. Skip Feed key

4. User Tools key

Press to change the default settings and conditions to meet your requirements.

5. Stamp key

6. Make-up key

7. Overlay key

8. Edge Erase key

9. Image Density key

Press to make prints darker or lighter.

C229V502.WMF

11. Economy Mode key

12. On Line key

13. Job Separator key

14. Combine key

Press to combine originals onto one print.

15. Class key

Press to select All Class, Auto Class, Manual Class, or Class mode.

16. Speed keys

17. Scroll keys

Press to shift the image forward, backward, right, or left.

10. Tint key

1-8

1 July, 1998 MACHINE INTERIOR

Overall

Information

18. Program key

Press to input or recall user programs.

19. Number keys

20. Clear/Stop key

While printing, press to stop the machine.

21. Enter key

Use to enter data in selected modes.

22. Clear Modes key

Press to clear the previously entered job settings.

C229V502.WMF

23. Start key

Press to make a master.

24. Auto Cycle key

Use to process the master and make prints at one stroke.

25. Proof key

Press to make a proof print.

26. Print key

Press to start printing.

1-9

MACHINE INTERIOR 1 July, 1998

1.3.2 INDICATORS

1. Special Feature indicator

This indicator is lit when you press keys under the flip-up cover.

2. Monitors

The monitors light up when a non-standard condition occurs within the machine.

3. A3/11" x 17" Drum indicator

This indicator is lit when the A3, 11" x 17" drum unit is installed.

4. A4/81/2" x 11" Drum indicator

This indicator is lit when the A4, 81/2" x 11" drum unit is installed.

C229V503.WMF

5. Color Drum indicator

This indicator is lit when the color drum unit is installed.

6. Counter

Displays the number of prints entered. While printing, it shows the number of prints remaining.

7. Panel Display

1-10

1 July, 1998 PRINTING PROCESS OVERVIEW

1.4 PRINTING PROCESS OVERVIEW

Overall

Information

C229V008.WMF

1. Master Ejecting: Ejects the used master wrapped around the drum

into the master eject box.

2. Scanning: Scans the original image with the CCD through the

mirrors and the lens.

3. Master Feeding: Converts the image signal read by the CCD into

digital signals and sends them to the thermal head to develop the image on the master. The master then wraps around the drum.

4. Paper Feeding: Sends paper to the drum section.

5. Printing: Presses the paper fed from the paper feed section

against the drum. This transfers ink to the paper through the drum screen and the master.

6. Paper Delivering: Peels off the printed paper with the exit pawls and air

knife, and ejects the paper onto the paper delivery table.

NOTE:

Some parts of the master eject, scanning, and master feeding processes are carried out at the same time. Paper feeding also starts before the master feeding process has finished.

1-11

MECHANICAL COMPONENT LAYOUT 1 July, 1998

1.5 MECHANICAL COMPONENT LAYOUT

31 32 33

121314151617181920

1. Master Feed Control Roller

2. Lens

3. CCD

4. SBU

5. Tension Roller

6. Platen Roller

7. Master Set Roller

8. Master Roll

9. Thermal Head

10. Master Buffer Duct

11. Paper Table

12. Paper Feed Roller

13. Paper Separation Roller

14. Registration Rollers

15. Doctor Roller

16. Pressure Cylinder

17. Ink Roller

C229V008.WMF

18. Idling Roller

19. Transport Belts

20. Job Separator Unit

21. Paper Delivery Table

22. Master Eject Rollers

23. Master Eject Box

24. Master Pick-up Roller

25. 2nd Scanner

26. 1st Scanner

27. DF Exposure Glass

28. 1st Transport Roller

29. 2nd Transport Roller

30. Original Feed Belt

31. Separation Roller

32. Pick-up Roller

33. Original Exit Roller

1-12

1 July, 1998 ELECTRICAL COMPONENT LAYOUT

1.6 ELECTRICAL COMPONENT LAYOUT

1.6.1 PRINTED CIRCUIT BOARD LAYOUT

Overall

Information

C229V007.WMF

1-13

ELECTRICAL COMPONENT LAYOUT 1 July, 1998

1.6.2 SCANNER SECTION

1.6.3 PAPER FEED SECTION

C229V001.WMF

1-14

C229V002.WMF

1 July, 1998 ELECTRICAL COMPONENT LAYOUT

1.6.4 MASTER EJECT, PRESSURE CYLINDER, AND OTHER

SECTIONS

Overall

Information

C229V003.WMF

1-15

ELECTRICAL COMPONENT LAYOUT 1 July, 1998

1.6.5 PAPER DELIVERY SECTION

1.6.6 MASTER MAKING UNIT

C229V010.WMF

6869

C229V005.WMF

1-16

1 July, 1998 ELECTRICAL COMPONENT LAYOUT

1.6.7 DRUM UNIT

Overall

Information

C229V006.WMF

1-17

ELECTRICAL COMPONENT LAYOUT 1 July, 1998

1.6.8 TABLES OF ELECTRICAL COMPONENTS

Boards

Index No. Name Function

1 Operation Panel Board Controls the operation panel. 2 Lamp Stabilizer Provides dc power for the xenon lamp. 3 Job Separator Board Controls the job separator. 4 Main Motor Control

Board

6 Main Processing Unit

7 I/O Board Controls the mechanical components. 8 Memory Board Enables the image editing function and data

9 Interface Board Enables the connection with the PC controller.

10 Thermal Head Power

26 Paper Width Detection

51 Separation Pressure

97 Ink Detection Board Checks if there is ink in the drum.

Power Supply Unit (PSU)

(MPU)

Supply Board Sensor Board Unit

(SBU) Feed Pressure

Detection Board

Board

Detection Board

Controls the main motor.

Provides dc power to the system.

Controls all machine functions both directly and through other boards.

printout via SP mode. This is an option.

This is an option for the China and Ricoh Asia versions.

Provides dc power to the thermal head.

Contains the CCD, and outputs a video signal to the MPU.

Sends data about the paper feed pressure to the CPU.

Sends data about the paper width on the paper table to the CPU.

Sends data about the paper separation pressure to the CPU.

Solenoids

Index No. Name Function

86 Duct Entrance Solenoid Opens or closes the plate at the entrance of the

Printing Pressure Release Solenoid

There are two solenoids: one at the front and one at the rear. They pull the release arms to apply the printing pressure against the drum.

master buffer duct.

Switches

Index No. Name Function

35 Main Switch Turns the power on or off. 56 Cover Safety Switches Checks if the front door is set correctly.

Paper Table Lowering Switch

Lowers the paper table.

1-18

1 July, 1998 ELECTRICAL COMPONENT LAYOUT

Motors

Index No. Name Function

17 Scanner Drive Motor Drives the scanner. 21 Feed Pressure Motor Drives the paper feed pressure adjustment

mechanism.

22 Registration Motor

Feeds the paper to align it with the image on the

master on the drum. 23 Paper Feed Motor Feeds the paper from the paper table. 25 Paper Table Motor Raises and lowers the paper table. 36 Pressure Plate Motor

Raises and lowers the pressure plate in the

master eject box. 37 Master Eject Motor Sends used masters into the master eject box. 40 Image Shift Motor Makes a phase difference between the positions

of the drum and pressure cylinder for the

up/down image shifting mode. 47 Clamper Motor Opens or closes the drum master clamper. 50

Separation Pressure Motor

Drives the paper separation pressure

adjustment mechanism. 58 Main Motor Drives the drum, pressure cylinder, and paper

delivery unit components. 60 Transport Vacuum Fan Provides suction so that paper is held firmly on

the transport belts. 61 Air Knife Fan

Provides air to separate the paper leading edge

from the drum. 63 Wing Guide Motor Changes the position of the paper wing guides

in the paper delivery unit. 66 Pressure Cam Shift

Motor

Switches the cams for the small master and full

size master to apply the appropriate printing

pressure. 69 Slider Lift Motor Moves the sliding arm in the job separator unit

up or down. 72 Job Separator Motor Drives the sliding arm in the job separator unit. 78 Cutter Motor Cuts the master after completing the master

making. 82 Platen Release Motor Applies or releases the pressure between the

platen roller and the thermal head. 83 Master Feed Motor Feeds the master to the drum. 84 Master Vacuum Fan

Provides suction to guide the master into the

buffer duct. 87 Ink Pump Motor Drives the ink pump to supply ink. 89 Idling Roller Motor Presses or releases the idling roller against the

drum screen. 91 Drum Shift Motor Slides the drum screen position to the front or

rear for the side-to-side image shifting mode.

Overall

Information

1-19

ELECTRICAL COMPONENT LAYOUT 1 July, 1998

Sensors

Index No. Name Function

12 Original Width Sensor Detects the width of the original on the exposure

glass. 13 Scanner HP Sensor Detects when the scanner is at home position. 15 Platen Cover Sensor Detects if the platen cover is open or closed. 16 Original Length Sensor

18 Master Making Unit Set

Sensor

24 Paper Table Lower

Limit Sensor 27 Paper Length Sensor Detects when long paper is on the paper table. 28 Paper Table Set Sensor Detects if the paper table is closed. 29 Paper End Sensor Detects if paper is present on the paper table. 30 Paper Height Sensor Detects if the top of the paper stack on the

32 Paper Feed Timing

38 Pressure Plate HP

39 Pressure Plate Limit

41 Image Shift HP Sensor

42 Image Position Encoder Sends the image position data to the CPU for

43 2nd Drum Position

45 Clamper Close Position

46 Clamper Open Position

49 1st Drum Master

52 Feed Encoder Detects fluctuations in the pressure cylinder

53 Feed Start Sensor

55 Lower Wrapping Jam

58 Master Eject Sensor Detects master eject misfeeds. 59 Eject Box Set Sensor Checks if the master eject box is installed.

Paper Registration

Sensor

Position Sensor

Sensor

1st Drum Position

Sensor

2nd Drum Master

Sensor

Detects the length of the original on the exposure glass.

Checks if the master making unit is set.

Detects when the paper table is at its lower limit position.

paper table is at the paper feed height. Detects paper approaching the registration

roller. Detects paper approaching the paper clamper in

the pressure cylinder. Detects when the pressure plate is at the home

position. Detects when the pressure plate is at the lowest

position. Detects if the pressure cylinder is at the home

position. (The up/down image shift is 0.)

display on the operation panel. Checks the drum position.

Checks the drum position.

Detects when the clamper is in the closed position.

Detects when the clamper is in the open position.

Detects if there is a master on the drum, to detect master clamping errors.

Detects if there is a master on the drum when the Start key is pressed.

rotation. Checks the pressure cylinder position for the

paper feed start timing. Detects paper wrapping jams on the pressure

cylinder.

1-20

1 July, 1998 ELECTRICAL COMPONENT LAYOUT

Index No. Name Function

62 Paper Exit Sensor Detects paper misfeeds at the exit. 64 A3 Cam Sensor

Detects when the A3 printing pressure cam is used.

65 A4 Cam Sensor Detects when the A4 printing pressure cam is

used.

67 Slider Position Sensor Detects when the job separator slider is fully

moved toward the paper on the delivery table.

68 Slider HP Sensor

Detects when the job separator slider is at the home position.

70 Paper Sensor

Detects when the job separator slider touches the paper on the delivery table.

71 Slider Upper Limit

Sensor 73 Wing Upper Position

Sensor 74

Wing Lower Position

Sensor

Detects when the job separator slider is at the uppermost position.

Detects when the paper wing guides are in the upper position.

Detects when the paper wing guides are in the lower position.

75 Master Edge Sensor Detects the leading edge of the master when a

new master roll is installed. 77 Cutter HP Sensor Detects when the cutter is at the home position. 80 Master Set Sensor Detects whether a master roll is present. 81 Platen Release Sensor Detects when the platen pressure is applied

against the thermal head. 85 Master End Sensor Detects when the master runs out. 88 Drum Shift HP Sensor Detects when the drum screen is at the home

position. (The side-to-side image shift is 0.) 90 Drum Shift Sensor

Sends the image position data to the CPU for

display on the operation panel. 92 Ink Pump Sensor Monitors the operation of the ink pump to count

how many cycles it has moved. 95 Ink Cartridge Set

Detects if the ink cartridge is in place.

Sensor

96 Idling Roller HP Sensor

Detects when the idling roller is at the home

position.

Overall

Information

Others

Index No. Name Function

14 Xenon Lamp Applies light to the original for exposure. 20 Interface Connector Connects the machine to the PC controller. 34 Print and Master

Counters

76 Master Feed Clutch Controls the master feed control roller operation

79 Thermal Head Burns the image of the original onto the master. 93 Thermistor Detects the temperature inside the drum to

94 Ink Detecting Pin Detects if ink is present in the drum.

Keeps track of the total number of prints and

masters.

to feed the master.

adjust various process.

1-21

DRIVE LAYOUT 1 July, 1998

1.7 DRIVE LAYOUT

1.7.1 OVERVIEW

1. Clamper Opening Arm Sector Gear (for the master eject position)

2. Master Pick-up Roller Sector Gear

3. Master Eject Motor

4. Image Shift Motor

5. Pressure Plate Motor

6. Exit Pawl Drive Cam Gear

7. Paper Delivery Unit Drive Gear/Pulley

8. Main Motor

C229V504.WMF

9. Pressure Cylinder Drive Gear (Including the Scissors Gear)

10. Registration Roller Lifting Cam Drive Gear

11. Registration Motor

12. Paper Feed Motor

13. Paper Table Motor

14. Clamper Motor

15. Drum Guide

16. Master Feed Motor

17. Master Feed Clutch

1-22

1 July, 1998 DRIVE LAYOUT

1.7.2 MAIN DRIVE

Overall

Information

C229V505.WMF

18. Drum

19. Pressure Cylinder

20. Printing Pressure Cam

21. Exit Pawl Drive Cam Gear

22. Main Motor

23. Printing Pressure Cam Drive Gear

24. Idler Gear/Pulley

25. Pressure Cylinder Drive Gear (including the Scissors Gear)

26. Primary Gear/Pulley

27. Drum Drive Gear/Pulley

28. Image Shift Gear

1-23

1 July, 1998 SCANNER AND OPTICS

2. DETAILED SECTION DESCRIPTIONS

2.1 SCANNER AND OPTICS

2.1.1 OVERVIEW

[E]

[F]

The exposure lamp, a xenon lamp [A], illuminates the original. The 1st, 2nd, and 3rd mirrors, and a lens [B] reflect the image onto a CCD (Charge Coupled Device) [C].

The 1st scanner [D] consists of the exposure lamp, a reflector [E], and the 1st mirror [F].

A DC power supply energizes the exposure lamp to avoid uneven light intensity when the 1st scanner moves in the sub-scan direction. The entire exposure lamp surface is frosted to ensure even exposure in the main scan direction.

The reflector reflects light with almost equal intensity, to reduce shadows on pasted originals.

[A]

[D]

[C]

C229D094.WMF

[B]

Detailed

Descriptions

2-1

SCANNER AND OPTICS 1 July, 1998

2.1.2 SCANNER DRIVE

[H]

Rear

[G]

[C]

[B]

[E]

[D]

[G]

[A]

Front

[E]

[F]

C229D095.WMF

A stepper motor drives the scanner. The scanner drive motor [A] drives the 1st and 2nd scanners [B, C] through the timing belt [D], scanner drive pulley [E], scanner drive shaft [F], and two scanner wires [G].

- Book mode -

The scanner drive board controls and operates the scanner drive motor. In full size mode, the 1st scanner speed is 42.33 mm/s during scanning. The 2nd scanner speed is half that of the 1st scanner.

In reduction or enlargement mode, the scanning speed depends on the magnification ratio (M: 0.50 to 2.00). The returning speed is always the same, in both full size and magnification modes. Changing the scanner drive motor speed changes the image length in the sub-scan direction. Image processing on the MPU board accomplishes reduction and enlargement in the main scan direction.

SP6-011-1 changes the motor speed and therefore adjusts the magnification ratio in the sub-scan direction.

- ADF mode -

During scanning, the scanners are always in their home positions (when the scanner H.P sensor [H] detects the 1st scanner). The ADF motor feeds the original through the ADF. In reduction/enlargement mode, changing the ADF motor speed changes the image length in the sub-scan direction. Magnification in the main scan direction is done on the MPU board, in the same manner as book mode.

SP6-011-2 changes the ADF motor speed and therefore adjusts the magnification ratio in the sub-scan direction.

2-2

+ 280 hidden pages

Ricoh pearl SPECIFICATIONS

Specifications and Main Features

Frequently Asked Questions

User Manual

1. OVERALL INFORMATION

1.1 SPECIFICATIONS

1.2 GUIDE TO COMPONENTS AND THEIR FUNCTION

1.2.1 MACHINE EXTERIOR

1.3 MACHINE INTERIOR

1.3.1 OPERATION PANEL

1.3.2 INDICATORS

1.4 PRINTING PROCESS OVERVIEW

1.5 MECHANICAL COMPONENT LAYOUT

1.6 ELECTRICAL COMPONENT LAYOUT

1.6.1 PRINTED CIRCUIT BOARD LAYOUT

1.6.2 SCANNER SECTION

1.6.3 PAPER FEED SECTION

1.6.5 PAPER DELIVERY SECTION

1.6.6 MASTER MAKING UNIT

1.6.7 DRUM UNIT

1.6.8 TABLES OF ELECTRICAL COMPONENTS

1.7 DRIVE LAYOUT

1.7.1 OVERVIEW

1.7.2 MAIN DRIVE

2. DETAILED SECTION DESCRIPTIONS

2.1 SCANNER AND OPTICS

2.1.1 OVERVIEW

2.1.2 SCANNER DRIVE