Ricoh FT4215 Manuale utente

A128 COPIER

SERVICE MANUAL

Only the differrences from the A110/A111 copier are described in

the following pages. Refer to the A110/A111 copier service manual

regarding the other information.

1. SPECIFICATIONS

Configuration: Desk top

Copy Process: Dry electrostatic transfer system

Originals: Sheet/Book, object

Original Size: Maximum: A3, 11" x 17"

Copy Paper Size: Maximum: A3, 11" x 17"

Minimum: A6, 51/2" x 81/2" (lengthwise)

Copy Paper Weight: 52 to 157 g/m2(14 to 42 lb)

Reproduction Ratios: 2 Enlargement and 3 Reduction

A4/A3 version LT/LDG version

Enlargement 141%

122% 155%

129%

Full size 100% 100%

Reduction 93%

82%

71%

93%

74%

65%

Zoom: From 50% to 200% in 1% steps

Copying Speed: 15 copies/minute (A4, 11" x 81/2" sideways)

10 copies/minute (A3, 11" x 17")

Warm-Up Time: Less than 60 seconds (at 20°C)

First Copy Time: 5.9 seconds (A4, 11" x 81/2" sideways for cassette

feed)

Copy Number Input: Ten keys, 1 to 99 (count up)

Manual Image Density

Selection: 7 steps

Automatic Reset: All input modes are reset 1 minute after the copier

is not in use; can also be set to 3 minutes or no

auto reset.

31 March 1994 SPECIFICATIONS

Energy Saver Function: Reduces electricity consumption

(Manual or manual/auto)

Paper Capacity: Cassettes: 500 sheets (A4, 81/2" x 11")

250 sheets (A3, 11" x 17")

Manual feed table: 50 sheets

Toner Replenishment: Black: Cartridge exchange (370g/cartridge)

Color (red, blue, & green):

Cartridge exchange (310 g/cartridge)

Copy Tray Capacity: 250 sheets (B4, 81/2" x 14" and smaller)

100 sheets (A3, 11" x 17")

Power Source: 110 V/ 60 Hz/ 15 A (for Taiwan)

115 V/ 60 Hz/ 15 A (for North America)

220/230/240 V/ 50 Hz/ 8 A (for Europe)

220 V/ 60 Hz/ 8 A (for Middle East)

(Refer to the serial number plate (rating plate) to

determine the power source required by the

machine.)

Power Consumption:

Copier Only Full System

Maximum 1.2 KVA 1.5 KVA

Warm-up 800 VA (average) 800 VA (average)

Copy cycle 900 VA (average) 800 VA (average)

Stand-by

(without energy

saver function)

180 VA (average) 180 VA (average)

Main switch off 20 VA (average) 40 VA (average)*

* : With the optional optics anti-condensation heater

SPECIFICATIONS 31 March 1994

Dimensions:

Width Depth Height

Copier only 672 mm (1130 mm)*

(1255 mm)**

26.5" (44.5")*

(49.4")**

600 mm

23.7" 363 mm (417 mm)*

14.1" (16.4")*

Full system 1274 mm

49.1" 600 mm

23.7" 466 mm

18.3"

( )* : When the A4 cassette and platen cover are installed and the copy tray is

extended.

( )** : When the A3, 11" X 17" cassette and platen cover are installed and the copy

tray is extended.

Full system: When the A3, 11" x 17" cassette and the sorter and the document feeder are

installed.

Noise Emissions:

Maximum Copy cycle Stand-by

Copier only less than 58 dB less than 55 dB less than 40 dB

Full system less than 60 dB less than 58 dB less than 40 dB

Weight:

Copier only 50 kg (110.2 lb)

Full system 67 kg (147.7 lb)

Optional Equipment and Machine Configuration: ( ) Machine Code

Configuration Optional dc power supply unit (A525)

Optional equipment Required Not required

10 bin sorter (A490) O

Document feeder (A318) O

Color development unit (A313) O

Other Optional Equipment:• Key counter

• Universal cassette

• Optics anti-condensation heater

•Specifications are subject to change without notice.

31 March 1994 SPECIFICATIONS

2. COPY PROCESSES AROUND THE DRUM

CLEANING

The cleaning blade removes any toner remaining on the drum. (A cleaning

brush is not used in the A128 copier).

4. DEVELOPMENT

5. PRE-TRANSFER LAMP

6. IMAGE TRANSFER

7. PAPER

3. ERASE

2. EXPOSURE

1. DRUM CHARGE

9. QUENCHING

8. CLEANING

SEPARATION

(PTL)

COPY PROCESSES AROUND THE DRUM 31 March 1994

3. MECHANICAL COMPONENT LAYOUT

1 2 3 4 5 6 7 8 9 10 11 12 13 14

1924

2526

2023 2122

1. Third Mirror

2. Second Mirror

3. First Mirror

4. Exposure Lamp

5. Ozone Filter

6. Cleaning Unit

7. Lens

8. Quenching Lamp (QL)

9. Charge Corona Unit

10. Sixth Mirror

11. Erase Lamp

12. OPC Drum

13. Development Unit

14. Toner Supply Unit

15. Optics Cooling Fan

16. 1st Feed Roller

17. Manual Feed Table

18. Pick-up Roller

19. Separation Roller

20. Registration Rollers

21. Pre-transfer Lamp (PTL)

22. Transfer and Separation Corona Unit

23. Pick-off Pawls

24. Cleaning Blade

25. Pressure Roller

26. Hot Roller

27. Exit Rollers

28. Hot Roller Strippers

29. Exhaust Blower

31 March 1994 MECHANICAL COMPONENT LAYOUT

4. DRIVE LAYOUT

G17 BP2 G16 TB1 G19 G18 G22 G23 G24

G26

G27

G28

G29

G25

G21

G20G1

G10

G4 BP3 G3

BP1

G11

G1: Main Motor Gear G20: Relay Gear

TB1: Timing Belt G24: Relay Gear

G23: Relay Gear

Development

Section

Drum Fusing and Exit Section

BP1: Timing Belt Pulley

G2: Relay Gear G18: Relay Gear G21: Cleaning Drive

Cleaning

Toner Supply CL Toner Supply Unit

G17: Toner Supply CL Gear

Development UnitDevelopment CL Solenoid

G28: Exit Roller Gear

G16: Development

CLGear G27: Relay Gear

G26: Relay Gear

BP2: Timing Belt Pulley G25: Hot Roller Gear

G22: Relay GearG19: Drum Drive GearG3: Timing Belt Drive

Gear

DRIVE LAYOUT 31 March 1994

Paper Feed Section

BP3: Timing Belt Pulley

G11: Registration CL

Gear G4: Relay Gear

Registration CL G5: Relay Gear

Registration Roller

Paper Feed CL G6: 1st Paper Feed CL Gear

Paper Feed Gear G7: Relay Gear

Paper Feed Rollers G8: Paper Lift CL Gear

Paper Lift CL

G9: Paper Lift Gear

G10: Sector Gear

31 March 1994 DRIVE LAYOUT

5. ELECTRICAL COMPONENT LAYOUT

5678

27 28 29 30 31

1. Scanner H.P. Sensor

2. Lens H.P. Sensor

3. Scanner Motor

4. Main Motor

5. Development Clutch Solenoid

6. Toner Supply Clutch

7. 4th/5th Mirror H.P. Sensor

8. Color Toner End Sensor

9. 4th/5th Mirror Motor

10. Pick-up Roller Release Solenoid

11. Manual Feed Table Switch

12. Color Switch

13. Paper Lift Clutch

14. Paper Feed Clutch Solenoid

15. Registration Clutch

16. Paper Size Switch

17. Paper End Sensor

18. Paper Lift Sensor

19. Registration Sensor

20. Total Counter

21. Pre-transfer Lamp (PTL)

22. ID Sensor Board

23. Erase Lamp

24. Fusing Lamp

25. Quenching Lamp (QL)

26. Auto Image Density Sensor

27. Fusing Thermistor

28. Toner Overflow Sensor

29. Fusing Thermofuse

30. Exit Sensor

31. Lens Motor

ELECTRICAL COMPONENT LAYOUT 31 March 1994

47 48

32. Operation Panel Board

33. Optics Thermoswitch

34. Exposure Lamp

35. Cover Safety Switch

36. Main Switch

37. Exhaust Blower Motor

38. Drum Anti-condensation Heater

39. Main DC Power Supply Board

40. Option DC Power Supply Board

41. Option Transformer

42. Main Transformer

43. AC Drive Board

44. Main Motor Capacitor

45. Main Board

46. TC/SC Power Pack

47. CC/Grid/Bias Power Pack

48. Optics Cooling Fan Motor

31 March 1994 ELECTRICAL COMPONENT LAYOUT

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