Ricoh FT6645 Installation guide

FT6645/6655/6665

SERVICE TRAINING

MANUAL

SECTION 1

OVERALL MACHINE

INFORMATION

1. SPECIFICATION

Configuration: Console

Copy Process: Dry electrostatic transfer system

Toner Supply Control: Fuzzy Control

Photoconductor: OPC drum

Originals: Sheet/Book

Original Size: Maximum A3/11" x 17"

Original Alignment: Left rear corner

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

Minimum A5/51/2" x 81/2" (Tray)

B5/81/2" x 11" (1.5K LCT)

A6/51/2" x 81/2" (By-pass)

Duplex Copying: Maximum A3/11" x 17"

Minimum A5/51/2" x 81/2" (sideways)

Copy Paper Weight: Paper tray: 52 ~ 128 g/m2, 14 ~ 34 lb

Bypass feed table: 52 ~ 157 g/m2, 14 ~ 42 lb

Duplex copying: 64 ~ 104 g/m2, 17 ~ 24 lb

Reproduction Ratios: 4 Enlargement and 6 Reduction

A4/A3 Version LT/LDG Version

Enlargement 200%

141%

122%

115%

200%

155%

129%

121%

Full Size 100% 100%

Reduction 93%

82%

75%

71%

65%

50%

93%

85%

77%

74%

65%

50%

STM 1-1 FT6645/6655/6665

Power Source: 115V, 60Hz, more than 20A (for N.A)

220 ∼240V, 50Hz/60Hz, more than 10A (for EU

and AA)

Power Consumption: FT6645(A095) and FT6655(A096) copiers

Copier only Full system*

Warm-up 0.90 kVA 0.90 kVA

Stand-by 0.25 kVA 0.25 kVA

Copying 1.20 kVA 1.30 kVA

Maximum 1.45 kVA 1.50 kVA

FT6665 (A097) copier

Copier only Full system*

120 V

machine 230 V

machine 120 V

machine 230 V

machine

Warm-up 1.20 kVA 1.20 kVA 1.25 kVA 1.25 kVA

Stand-by 0.25 kVA 0.22 kVA 0.25 kVA 0.24 kVA

Copying 1.80 kVA 1.70 kVA 1.80 kVA 1.75 kVA

Maximum 1.80 kVA 1.70 kVA 1.80 kVA 1.75 kVA

*Full System:

•Mainframe with dual job feeder, compact

sorter stapler and 3,500-sheet large capacity

tray

•Mainframe with dual job feeder, floor type

sorter stapler and 3,500-sheet large capacity

tray

•Mainframe with recirculating document

handler, finisher and 3,500-sheet large

capacity tray

Rev. 7/94

FT6645/6655/6665 1-2 STM

Noise Emission:

Copier only Full system*

Copying (FT6645/6655 copiers) 55 dB (A) 62 dB (A)

Copying (FT6665 copier) 60 dB (A) 64 dB (A)

Full System:

•Mainframe with dual job feeder, compact

sorter stapler and 3,500-sheet large capacity

tray

•Mainframe with dual job feeder, floor type

sorter stapler and 3,500-sheet large capacity

tray

•Mainframe with recirculating document

handler, finisher and 3,500-sheet large

capacity tray

Dimensions: 690 x 690 x 980 (W x D x H Mainframe only)

1280 x 690 x 1020 (W x D x H Mainframe with

copy tray, platen cover)

Weight: Copier only: (Without the optional platen cover

= Approximately 2 kg)

FT6645 (A095) copier: Approximately (333 lbs)

FT6655 (A096) copier: Approximately (360 lbs)

FT6665 (A097) copier: Approximately (360 lbs)

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

Copying Speed: A4/LT (sideways) A3/DLT B4/LG

FT6645 copier 45 23 27

FT6655 copier 55 28 35

FT6665 copier 65 33 41

Warm-up Time: Less than 5 minutes (20°C)

First Copy Time:

(A4/81/2" x 11" sideways

from the 1st feed station)

3.1 seconds FT6645/6655 (A095/A096 copiers)

2.7 seconds FT6665 (A097 copier)

Copy Number Input: Number keys, 1 to 999 (count up or count down)

Manual Image Density 7 steps

Selection:

Rev. 7/94

Sound Pressure Level:

The measurements are

made according to

ISO7779

STM 1-3 FT6645/6655/6665

Automatic Reset: 1 minute standard setting; can also be set from 1

second to 999 seconds or no auto reset.

Copy Paper Capacity: •By-pass feed table: approximately 50 sheets

•Paper tray: approximately 550 sheets

•Tandem tray: approximately 500 sheets/side,

1000 total

•Large capacity tray: approximately 1,500

sheets

•Duplex: 50 sheets

Toner Replenishment: Black Only: Cartridge exchange

1,100 g/cartridge, Yield 38,000 copies

(6% originals)

Developer

Replenishment: Black Only: 1Kg/Bag, 120,000 copies

(6% originals)

Optional Equipment: •Type 610, Platen cover

•DF60, Dual job feeder

•DH400, Recirculating document handler

•ST25, 20 bin sorter stapler (Floor type)

•ST24, 20 bin compact sorter stapler

•SR400, Finisher

•RT31, 3,500-sheet Large capacity tray

•Type B, Receiving Tray

Toner Collection

Bottle Capacity: 7,500cc, 120,000 copies (6% originals)

Rev. 7/94

FT6645/6655/6665 1-4 STM

2. MACHINE CONFIGURATION

2.1 COPIER OVERVIEW

There are two types of mainframe.

FT6645 (A095) copier

FT6655 (A096) FT6665 (A097) copiers

550

(3,500)

Rev. 7/94

(3,500)

500 x 2 or 500

550

1,500

Three 550-sheet paper trays Optional

3,500-sheet large capacity tray

Tandem paper tray

(including two 500-sheet paper tray)

One 550-sheet paper tray

1,500-sheet built-in large capacity tray

Optional 3,500-sheet large capacity tray

STM 1-5 FT6645/6655/6665

2.2 SYSTEM OVERVIEW

System A

The mainframe FT6645 (A095) with dual job feeder and compact sorter

stapler.

System B

Mainframe type FT6645/6655/6665(A095/A096/A097) with dual job feeder

and floor type sorter stapler. The mainframe in the illustration below is the

FT6655 (A096).

Rev. 7/94

Compact

sorter stapler

ST24 (A374)

Dual job feeder DF60 (A376)

3,500-sheets

large capacity

tray

RT31 (A380)

Dual job feeder DF60 (A376)

3,500-sheets

large capacity tray

RT31(A380)

Floor type

sorter stapler

ST25 (A377)

FT6645/6655/6665 1-6 STM

System C

The mainframe FT6665/6665 (A096/A097) with recirculating document

handler and finisher.

NOTE: All references to (A096 copier only) now refers to (A096 and

A097 copiers).

3,500-sheets

large capacity tray

RT31 (A380)

Recirculating document handler DH400 (A378)

Finisher

SR400 (A379)

Rev. 10/94

STM 1-7 FT6645/6655/6665

3. COPY PROCESS AROUND THE DRUM

1. OPC DRUM

The organic photo conductive (OPC) drum (100 mm diameter) has high

resistance in the dark and low resistance under light.

2. DRUM CHARGE

In the dark, the charge corona unit gives a uniform negative charge to the

OPC drum. The charge remains on the surface of the drum. The amount of

negative charge on the drum is proportional to the negative grid bias voltage

applied to the grid plate on the charge corona unit.

3. EXPOSURE

An image of the original is reflected to the OPC drum surface via the optics

section. The charge on the drum surface is dissipated in direct proportion to

the intensity of the reflected light, thus producing an electrical latent image on

the drum surface.

The amount of charge remaining as a latent image on the drum depends on

the exposure lamp intensity controlled by the exposure lamp voltage.

4. ERASE

The erase lamp illuminates the areas of the charged drum surface that will

not be used for the copy image. The resistance of drum in the illuminated

areas drops and the charge on those areas dissipates.

FT6645/6655/6665 1-8 STM

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