Ricoh FT4430 User manual

RICOH FT4430
SERVICE MANUAL
RICOH COMPANY, LTD.

SECTION 1
OVERALL MACHINE
INFORMATION

Table of Contents
SPECIFICATIONS . .
OPERATION PANEL
SECTION A . . . . . . . . .
SECTION B . . . . . . . . .

16 April ’88
SPECIFICATIONS
Configuration: Desk top
Copying Process: Dry electrostatic transfer system
Original: Sheet/book
Original Size: Maximum A3 (11“ x 17”)
Copy Paper Size: Maximum A3 (11“ x 17”)
Minimum A6 (51/2" x 81/2”)
Copy Paper Weight: Cassette feed 52 to 128 g/m2 (14 lb to 34 lb)
Manual feed 52 to 157 g/m2 (14 lb to 42 lb)
Reproduction Ratios: See the following table:
v
A4 Version Letter Version
1:1.41 1:1.55
Enlargement
1:1.22 1:1.29
1:1.15
1:1.21
Full Size
1:1
.
11
:G
1:0 93
●
1:0 93
.
.
●
1:0.82
.
1:0 77
.
●. .
Reduction
1:0.71 1:0.74
1:0.65 1:0.65
Zoom: From 65% to 155% in 1 % steps
Reproduction Ratio Full size - Enlargement or
Change: Full size - Reduction in less than 5 seconds
Enlargement - Reduction or
Reduction - Enlargement in less than 6.5
seconds

16 April ’88
Copying Speed: The copy speed (in copies per minute) is shown
in the following tables:
A4 Version
A3 B4 A4 B5
A4R B5R
11 13 20 20
15 15
Letter Version
LDG LG LT LT(R)
12 15
22
16
When used with document feeder, A4 (LT) speed
is 17 cpm (sideways).
First-Copy Time: 6.0 seconds (A4 or 81/2” x 11”)
Warm-Up Time: Approximately 100 seconds (23°C)
Copy Number Input: Numeral keys, 1 to 999, (count up or count down)
Special Functions: - Margin adjustment
- Auto size magnification mode
-2 single copies mode
- Auto paper select and auto reduce/eniarge
mode (with ADF only)
Manual Image Density 7 Steps (Development bias variable)
Selection:
Automatic Reset: 1 min. standard setting; can also be set to 3 min.
or no auto reset.
All functions canceled except cassette selection.
Quantity entered returns to “1”, and reproduction
ratio returns to full size.
1-2

16 April ’88
Paper Feed: - Double universal cassette feed, 250 sheets each
(auto cassette shift)
- Manual feed table
- Optional large capacity tray (LCT) at second
feed station.
Paper-Feed System: Friction-pad system
Exposure System: Slit exposure, moving optics
Lens: Through lens, F8, f = 180mm
Light Source: Halogen lamp (85 V, 290 W)
Photoconductor: Selenium drum (F type)
Charge System: Dual wire dc corona
Erase:
LED lamp unit (34 LEDs)
Development System: Magnetic brush roller
Toner Density Control: Automatic, direct density sensing
Development Bias Automatic voltage change (The control board
System: monitors the selected image density level, drum
temperature, and rest time.)
Toner Replenishment: Cartridge exchange (300 g/cartridge)
Toner Consumption: Approx. 7,500 copies/cartridge (A47% original)
Cleaning System: Blade and brush
Quenching System: Photo-quenching
Image Transfer: Single wire dc corona, pre-transfer lamp
Paper Separation: Dual wire ac corona and pick-off pawls
Image Fusing: Heat/pressure - roller type
Fusing Lamp: Halogen lamp (840 W)
1-3

16 April ’88
Electronic Control 8-bit microprocessor
System:
Copy Tray Capacity: 250 sheets (B4 / 10” x 14”)
100 sheets (A3 / 11” x 17“)
Self-diagnostics: 19 codes, displayed in the copy counter
Power Source: 110V/60Hz....15A
115V/60Hz....15A
220V/50Hz....8A
220V/60Hz....8A
240V/50HZ....8A
Power Consumption: Warm-up:
1.0 kW
Stand-by: 0.08 kW
Copying: 0.42 kW (A4 sideways)
Maximum: 1.22 kW
Dimensions: Copier only: 734 x 654 x 390 mm
(WxDxH)28.9 x 25.8 x 15.4 inches
Full System: 1363 x 654 x 460 mm
53.7 x 25.7 x 14.1 inches
Weight: 65 kg (143 lb) (Copier only)
100 kg (221 lb) (Full System Without table)
Optional Equipment: Document Feeder
Sorter (20 bins)
Large Capacity Tray
Editor Board (requires editing eraser lamp)
Color Development Unit (Red, Blue, Green)
1-4

16 April ’88
OPERATION PANEL
(A4/A3 Version)
SECTION A
1. Sort Indicator 9. Copy Image Size Indicator
2. Stack Indicator 10. Zoom Keys
3. Auto Reduce/Enlarge Indicator 11. Size Magnification Key
4. Auto Paper Select Indicator 12. Margin Adjustment Key
5.2 Single Copies Indicator 13.2 Single Copies Key
6. Left Margin Adjustment Indicator 14. Auto Selection Key
7. Right Margin Adjustment Indicator 15. Sorter Key
8. Original Image Size Indicator
1-5

16 April ’88
SECTION B
1. (LT/LDG Version)
(A4/A3 Version)
1,
2
4
3
<
4 ●
5 .
6 ,
7
.
8
●
9
10
11
12
13
,
14,
15.
16
17
(
18 .
32
33
34
35
36
Auto Image Density Key
Manual Image Density Key
Manual Image Density Indicator
Color Toner Indicator
Misfeed Location Display
Select Cassette Key
Paper Size Indicator
Full Size Key
Full Size Indicator
Magnification Ratio Indicator
Enlarge Key
Reduce Key

16 April ’88
(LT/LDG Version)
-
1. Number Keys
2. Recall/Enter Key
3. Interrupt Indicator
4. Interrupt Key
(A4/A3 Version)
5. Clear Modes Key
6. Start Key
7. Clear/Stop Key