Ricoh FT3320 Guía de instalación
SERVICE TRAINING
MANUAL
FT3320
Table of Contents
.
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-1
OPERATION PANEL . . . . . . . . . . . ●● “**” *D*” “*””
1-4
COPY PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-6
FUNCTIONAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-7
MECHANICAL COMPONENT LAYOUT . . . . . . . . . . . . . . . . . ...1-8
DRIVE IAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-9
ELECTRICAL COMPONENT IAYOUT . . . . . . . . . . . . . . . . . . . . .1-10
ELECTRICAL COMPONENT DESCRIPTIONS . . . . . . . . . . . . ...1-12
AC AND DC POWER DISTRIBUTION . . . . . . . . . . . . . . . . . . ...1-15
OVERALL MACHINE CONTROL . . . . . . . . . . . . . . . . . . . . . . ...1-16
DRUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-1
1. SELENIUM DRUM . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-1
2. HANDLING THE DRUM . . . . . . . . . . . . . . . . . . .......2-1
DRUM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-2
I. OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-2
2. TEMPERATURE COMPENSATION . . . . . . . . . . . . . . ...2-3
3. CORONA WIRE CLEANER . . . . . . . . . . . . . . . . . . . . ...2-4
4. CHARGE CORONA CIRCUIT . . . . . . . . . . . . . . . . . . ...2-5
OPTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-6
I. OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-6
2. SCANNER DRIVE MECHANISM . . . . . . . . . . . . . . . . ...2-7
3. SCANNER DRIVE CIRCUIT . . . . . . . . . . . . . . . . . . . . ...2-8
4. EXPOSURE IAMP CONTROL . . . . . . . . . . . . . . . . . . ...2-9
5.0 RIGINAL I. D. SENSING . . . . . . . . . . . . . . . . . . . . . . ...2-l0
6. SERVICE CALL CONDITIONS . . . . . . . . . . . . . . . . . . ...2-11
DEVELOPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-12
1. OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-12
2. DRIVE MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . ...2-13
3. SEALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-14
4. CROSS-MIXING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-15
5. IMAGE DENSITY CONTROL . . . . . . . . . . . . . . . . . . . ...2-16
6. BIAS FOR ID SENSING . . . . . . . . . . . . . . . . . . . . . . . ...2-19
7. DEVELOPMENT SET SWITCH . . . . . . . . . . . . . . . . . ...2-20
i
TONER DENSITY DETECTION AND TONER SUPPLY . . . . . ...2-21
1
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2
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3
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4
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IMAGE
1
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2
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3
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,
4
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5
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TONER DENSITY DETECTION . . . . . .
. . . . . . . . . . . ...2-21
TONER DENSITY CONTROL . . . . . . . .
. . . . . . . . . . . ...2-22
TONER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-23
TONER END DETECTION . . . . . . . . . . . . . . . . . . . . . ...2-25
PAPER
1
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2.
3
●
4
●
5
●
6
●
7
●
8
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PAPER
1
.
2
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IMAGE
1
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2
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3
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4
9
5
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6
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7
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ii
--
SECTION 1
OVERALL MACHINE
INFORMATION
SPECIFICATIONS
Configuration:
Copying Process:
Original:
Original Size:
Copy Paper Size:
Copy Paper Weight:
Reproduction Ratio:
Copying Speed:
First
Copy Time:
Warm-up Time:
Copy Number Input:
Manual Image Density
Selection:
Automatic Reset:
Paper Feed System:
Exposure System:
Lens:
Light Source:
Desk top (fixed platen)
Dry electrostatic transfer system
Book/sheet
Maximum: A4/811z” x 14”
Maximum: A4/8vz” x 14“
Minimum: A6/5112° x
81I2”
52 to 128 grams (14 lb to 34 lb)
1:1
12 copies/minute (A4/81/2° x 1 1”)
10 copies/minute (81/2” x 14“)
9 seconds
(A4/8vz” x 11”)
Approximately 35 seconds (room temp.
20 C/68 F)
Numeral keys, 1 to 99
7 steps (development bias variable)
60
seconds.
Quantity entered returns to “1”.
Manual image density
mode returns
to Auto ID
mode. Interrupt mode returns to the previous
mode.
Feed and reverse roller.
Cassette feed,
250
sheets.
Manual feed, 50
sheets.
Slit exposure, moving optics
Through lens, F10, f= 180 mm
Halogen lamp:
97 v, 300 w (115V)
180 V, 350 W (220/240V)
1 Nov. '87
Photoconductor:
Charge System:
Development System:
Toner Density Control:
Development Bias System:
Toner Replenishment:
Toner Consumption:
Cleaning System:
Quenching System:
Image Transfer:
Paper Separation:
Image Fusing:
Fusing Lamp:
Electronic Control System:
Copy Tray Capacity:
Self-diagnostics:
Power
Source:
Average Power
Consumption:
Selenium drum (H type)
Single wire dc corona
Magnetic brush roller
Automatic (photosensor)
Pulse width modulation switching
Cartridge exchange (200 g/cartridge)
Approximately 4,500 copies/cartridge (A4, 7%
original)
Blade and brush
Photo quenching
(neon lamp)
Single wire dc corona, pre-transfer lamp
Single wire ac corona and pick-off pawls
Heat and pressure rollers
Halogen lamp (850 W)
Microprocessor
100 sheets (standard
copy paper)
8 codes, displayed in the copy counter
110 V/60 Hz . . . . . ..I2 A
115 V/60 Hz . . . . . ..I2 A
220 V/50 Hz . . . . . . . 6 A
240 V/50 Hz . . . . . . . 6 A
220 V/60 Hz . . . . . . . 6 A
Warm-up: 0.89 kW
Stand-by: 0.15 kW
Copying: 0.66 kW
(A4)
Max:
1.3 kW (110 V/l 15 V/220 V)
1 Nov. '87
Dimensions (WXDXH):
580 x 495 x 320 mm
22.8 x 19.5 x 12.6 inches
Weight:
38 kg (83.8 lb)
Optional Equipment: Key counter
●
Additional Cassette
Original Table
1 Nov. '87
1. Check Paper Path Indicator
Indicates that a misfeed has oc-
curred within the copier.
2. Load Paper Indicator
Lights when no paper is in the cas-
sette or the manual feed table
3. Manual ID Indicators
Show the manually selected
density.
4. Add Toner Indicator
image
Lights when it is time to change the
toner cartridge. When continuously
lit, the copier cannot be used until a
new cartridge is installed.
5. Copy Counter
Displays the number of copies
entered. While copying, it shows the
number of copies made.
6. Auto Image Density Indicator
Lights when the copier is automati-
cally controlling image density.
7. Ready Indicator
Lights when the machine is ready
to-make copies.
8. Wait Indicator
Indicates that the machine is not
ready to copy.
9. Manual Feed Indicator
Lights when the manual feed table
is open.
1 NOV. '87
- Letter Version -
10. Number Keys
The number keys are used to enter
the desired number of copies.
11. Interrupt Indicator
Lights when interrupt mode is
selected.
Also lights when the
manual feed table is open.
12. Interrupt Key
Press to make interrupt copies
during a copy run.
13. Start Key
Press to start operation.
14. Clear/Stop Key
Press to cancel the copy number
entered. While copying, press to
stop copy operation.
15. Auto Image Density Key
Press to select/deselect automatic
image density mode.
16. Manual Image Density Keys
Press to make copies lighter or
darker. Use these keys to cancel
automatic control and manually
select the image density level.
Note:
The Manual Image Density
indicator or the Auto Image
Density indicator will start
blinking if the ID sensor’s
input becomes abnormal.
1-5
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