6.
If the installation place is air-conditioned or heated, place the machine:
7.
10°C to 30°C (50°F to 86°F)
15% to 90% RH
Less than 1,500 Iuxs (Do not expose to direct sunlight)
:
Room air should turn over at least 3 times/hour.
:
Less than 0.15 mg/m
:
More than 10m³ (13.4 yd
3
(4 x 100¯³ Oz/yd³)
3
)
a. Where it will not be subjected to sudden temperature changes from low to high, or vice versa.
b. Where it will not be directly exposed to cool air from an air conditioner in the summer.
c. Where it will not be directly exposed to reflected heat from a space heater in winter.
Avoid placing the copier in an area filled with corrosive gas.
8.
Avoid any area higher than 2,000m (6,500 feet) above sea level.
9.
10.
Place the copier on a strong and level base.
11.
Avoid any area where the copier may be subjected to frequent strong vibration.
1-1
1B. Machine Level
1. Front to Back:
Within 5mm (0.2”) of level
2. Right to Left:
Within 5 mm (0.2”) of level
(Legs may be screwed up or down to level the
machine.
Set a carpenter’s level on the
exposure glass.)
1-2
1C. Minimum Space Requirements
July 1, ’85
1. Front :
2. Back :
3. Right :
70 cm (27-1/2”)
10 cm (4“)
70 cm (27-1/2”)
4. Left :70 cm (27-1/2”)
1Ocm (4”)
1-3
1 D.
Power Source
1.
Input Voltage Level
110V/60Hz
115V/60Hz
: More than 12A
: More than 12A
220V/50Hz :More than 7A
240V/50Hz :
Permissible Voltage Fluctuation : ± 10%
2.
Permissible Extension Cord:
3
.
More than 7A
At least 300V, 30A capacity and less than 5
m (16.4”) long.
1-4
NOTE: 1.
Be sure to ground the machine. (Do
not connect the grounding wire to a gas
pipe.)
2.
Make sure the plug is firmly inserted in
the outlet.
Before moving the copier from its place of installation, be sure to prepare it for transportation as
follows. The copier may be badly damaged if it is
moved without proper preparation.
1.
Take off the left cover (3 screws) and fix the
scanner in the home position with the scanner
lock plate. (ABSOLUTELY NECESSARY)
2.
Remount the left cover.
Push the slide unit to the left and remove the
3
.
fusing unit cover (2 screws).
4.
Take out the oil tank (1 screw) and empty it.
Reset the oil tank.
5.
Reinstall the fusing unit cover.
6.
4-1
7.
Remove the toner collection bottle.
with the rubber lid and transport it separately.
8
.
Remove the drum and transport it separately
in a drum box.
9.
Remove the developer and clean the development unit.
10.
Clean the cleaning unit.
11.
Reinsert the development unit, the cleaning
unit, and the drum flange.
12.
Reset the drum stay and the charge corona
unit.
13.
Insert a wedge between the registration roller
bushing and the lower registration guide plate.
14.
Set the slide unit and tape down the slide unit
handle as shown on page 2-2.
Fix the front cover, the by-pass feed table, and
15.
the platen cover with strips of tape.
Plug it
4-2
4B. Preparations for Transporting the Copier
[FT3050/FT3060]
Before moving the copier from its place of installa-
tion, be sure to prepare it for transportation as
follows. The copier may be badly damaged if it is
moved without proper preparation.
1.
Take off the left cover (3 screws) and fix the
scanner in the home position with the scanner
lock plate. (ABSOLUTELY NECESSARY)
Remount the left cover.
2.
Push the slide unit to the left and remove the
3.
fusing unit cover (2 screws).
4.
Take out the oil tank (1 screw) and empty it.
Reset the oil tank.
5.
Reinstall the fusing unit cover.
6.
July 1, ’85
4-3
7.
4-4
Remove the toner collection bottle.
with the rubber lid and transport it separately.
8.
Remove the drum and transport it separately
in a drum box.
Remove the developer and clean the develop-
9.
ment unit.
10.
Clean the cleaning unit.
11.
Reinsert the development unit, the cleaning
unit, and the drum flange.
12.
Reset the drum stay and the charge corona
unit.
Insert a wedge between the registration roller
13.
bushing and the lower registration guide plate.
14.
Set the slide unit and tape down the slide unit
handle as shown on page 2-2.
2. Loosen the two screws that tighten down the
right side of the top cover.
3. Remove the exposure glass.
NOTE: When installing the left scale:
1)
make sure the exposure glass is flush
with the sensor pattern plate.
2)
the left scale must overlap the exposure
glass by 10 ± 0.5 mm (0.39” ±
0.02”). [FT3020]
6-2
6A-2. Exposure Lamp Replacement [FT3020]
Oct. 1, ’83
CAUTION:
* To avoid warping the scanner, move
it by pushing or pulling the wire
clamp or drive wire only.
* Do not handle the exposure lamp with
your bare hands. Use a strip of
paper as shown. (Finger oil marks on
the lamp or reflectors will be affected
by heat, resulting in discoloration.)
1.
Remove the exposure glass and the top cover
(10 screws).
2.
Move the scanner to the middle.
3
.
Swing the reflector cover away from the
reflector and remove the rear terminal cover (2
screws, 1 flathead screw).
4.
Reset the reflector cover without screws and
move the scanner to the left (as viewed from
the rear) until the lamp is opposite the hole in
the optics unit frame.
6-3
Rotate the lamp terminal as shown and take
5.
out the lamp.
Install a new lamp.
6
.
7.
Check the lamp position and light intensity.
6-4
NOTE:
* The blister on the lamp must point toward
the mouth of the reflector.
6A-3. Uneven Exposure Adjustment
I.
Exposure Lamp Position
1.
Remove the top cover and the exposure glass
(10 screws).
2.
Verify that the lamp is properly seated.
Move the scanner to the right.
3
.
4.
Open the by-pass feed table, the black inner
cover, and the toner cartridge holder.
Remove the two cover plates (1 screw each).
5.
6.
Through the sight holes in the reflector, confirm the lamp filament position (See figure).
7.
Correct the horizontal position by tightening
or loosening the two adjusting screws.
NOTE: The vertical adjustment is done in produc-
tion only.
Oct. 1, ’83
6-5
July 1, ’85
Il. Adjusting Plates
If uneven exposure still exists after the above
adjustment, do the following:
1. Remove the exposure glass.
2. Move the adjusting plates as shown to
increase or decrease side illumination.
NOTE: The leading edges of the three adjusting
plates must be aligned to avoid white
streak.
* Adjustment Standard:
The side to side variation
of the gray scales should
be less than 1 level.
6A-4. Scanner Drive Wire Replacement
[FT3020]
1. Take off the Top cover (8 short screws) and
left cover (3 screws).
2. Remove the rear cover (2 screws) and the
main PCB (2 screws, 4 connectors).
3. Remove the following parts:
* Exhaust fan (3 screws)
* Inlet cooling fan (4 screws, connectors as
necessary)
* Transformer (2 screws)
– just swing to the right on the bracket.
* Scanner brake belt
* Scanner brake pulley (1 E-ring, 1 parallel key)
* Pulley shaft support plate (2 screws)
4. Loosen the wire clamp and take off the old
wire.
Oct. 1, ’83
6-7
5.
Secure one end of the new wire with the
anchor screw.
6.
Run the wire under the inside track of WP1
and then through the wire clamp to WP2.
7.
Next, set the wire in the inside track of WP2
and then run it over the inside track of WP3.
8.
Wrap the wire around the scanner drive pulley
(WP4) 4 times counterclockwise, starting
from the inside edge of the pulley.
9.
Then, run the wire over the outside track of
WP5 and under the outside track of WP6.
10.
Next, run the wire over the outside track of
WP1 and around WP7.
11.
Hook the free end of the wire to the tension
spring.
12.
Tighten the wire clamp.
13.
Manually rotate the main pulley and check for
overlapping of the scanner drive wire.
14.
Reassemble the copier.
15. Check and adjust the magnification (See 6G-
1).
6-8
6A-5. Scanner Drive Clutch Removal [FT3020]
1.
Follow Scanner Wire Replacement (6A-4)
steps 1 to 4.
2.
Slide the bearing and the scanner drive pulley
(1 shoulder screw) off of the clutch shaft.
3
Remove the scanner drive belt tightener (2
.
screws), and slide off the clutch drive pulley.
4.
Remove the anchor hook of the wire tension
spring (1 screw).
5.
Remove the, scanner
drive clutch (3 screws, 1
connector).
6-9
6A-6. Exposure Lamp Replacement
[FT3050/FT3060]
CAUTION: * To avoid warping the scanner, move it
by pushing or pulling the wire clamp
or scanner drive pulley only.
* Do not handle the exposure lamp with
your bare hands. Use a strip of
paper as shown. (Finger oil marks on
the lamp or reflectors will be affected
by heat, resulting in discoloration.)
1.
Remove the platen cover and the platen cover
studs.
Remove the top cover and the exposure glass
2.
(10 screws).
Move the scanner to the position where the
3
.
frame is cut out.
Remove the rear reflector cover (2 screws).
4.
Rotate the lamp terminal as shown and take
5.
out the lamp.
Install a new lamp.
6.
NOTE:
* The blister on the lamp must point toward
the mouth of the reflector.
6-10
Check the lamp position and light intensity.
7.
6A-7. Scanner Drive Wire Replacement
[FT3050/FT3060]
1.
Remove the platen cover and the platen cover
mounting studs.
2.
Remove the top cover (8 screws).
Remove the rear cover (2 screws) and the left
3.
cover (3 screws).
Remove the following parts;
4.
* Inlet cooling fan (5 screws, connectors as
necessary)
* Exhaust fan (2 screws)
NOTE: All screws on the optics frame installed in
the horizontal direction must be short
screws (M4 x 6).
Unhook the ends of the scanner drive wire.
5.
Take out the magnification change clamp and
6.
the old wire (1 screw).
July 1, ’85
Clamp the new wire to the magnification
7.
change clamp as shown.
* The left end should be about 180 mm (7.9”)
long.
6-10-a
Oct. 1, ’83
Reinstall the magnification change clamp.
8.
Move the second scanner to the return posi-
9.
tion.
10.
Working from the clamp, thread the long end
of the wire in the lower groove of the clamp
and run it under the inside track of the tension
pulley (WP1).
11.
Then run the wire under the outer track of the
second scanner pulley (WP2), through the
wire clamp below the screw, and around the
lower track of WP3.
12.
Run the wire around the lower track of WP4,
and then give it two and half (2.5) turns clockwise around the scanner drive pulley, winding
from lower to upper.
13.
Next, run the wire over the upper track of
WP4, the lower track of WP6, the inner track
of WP2, and the inner track of WP7.
14.
Guide the left end of the wire through the
upper groove of the magnification change
clamp; then pull the ends of the wire together
and join them with the wire hook.
15. Reassemble the copier.
16. Check and adjust the magnification (See 6G.
5)
6-10-b
6A-8. Lens Drive Motor Replacement
[FT3050/FT3060]
1.
Remove the following parts;
* Charge Corona Unit (1 screw)
* Drum Stay
* Development Unit
* Cleaning Unit
* Erase Lamp Unit
* Quenching Lamp Unit
* Drum Flange and Drum
* Exposure Glass (4 screws)
Take off the rear cover (2 screws) and the
2.
optics PCB (1 screw, 4 connectors).
3.
4.
Take out the above drum casing (2 screws).
Take out the main motor cover (1 screw).
5.
July 1, ’85
6-10-c
Remove the lens housing cover (3 screws).
6.
Disconnect the lens drive motor connector
7.
and disengage it from the rear side plate.
.
8
Lift up the clamps holding the lens drive motor
harness.
9.
Remove the lens drive motor assembly (2
screws).
10.
Take off the motor cover (1 screw).
11.
Remove the motor gear (1 allen screw).
12.
Replace the lens drive motor (2 screw).
13.
Reassemble.
6-10-d
6A-9. Lens Home Position Sensor Adjustment
[FT3050/FT3060]
NOTE: When the lens home position sensor is rep-
laced or when horizontal magnification
and/or a focus will not improve by adjusting
the wire clamp, do this adjustment.
Remove the exposure glass (4 screws), the
1.
lens housing cover (3 screws), and the rear
cover (2 screws).
By turning the lens drive gear, move the lens
2.
from left to right until it reaches the full size
position.
At the full size position, a line through the
center of the cam follower and the first align-
ment hole will form a right angle with a line
through the center of the first and second
alignment holes.
July 1, ’85
6-10-e
Oct. 1, ’83
3.
Open the front cover to prevent the scanner
from moving and turn on the main switch.
4.
Select the DC 20V range of the digital
multimeter, and connect the multimeters leads
— the COM line to logic ground and the input
line to CN202-9 on the optics PCB.
Loosen the sensor fixing screw.
5.
6.
Slide the sensor as far as possible toward the
right.
7.
SlowIy slide the sensor back until the
multimeter reading changes from +5V to 0V.
Tighten the sensor screw at this posttion.
8
.
Make copies and check the horizontal component of magnification and focus.
Set the development unit on a large sheet of
paper with the unit’s inlet facing downward.
2.
Turn the paddle roller knob counterclockwise.
The developer will fall out onto the paper.
3.
Hold the unit at an angle and dump out the
developer that has collected at the ends of the
development unit.
4.
Repeat the above steps until you have
removed all of the developer.
Turn the unit rightside up and pour in one bot-
5.
tle (1 kg) of RICOH TYPE 4000 developer.
6-12
6B-2. Doctor Gap Adjustment
* Adjustment Standard: 1.25 ± 0.1 mm
(0.049” ± 0.004”)
1.
Take out the development unit and empty the
developer.
Take off the upper cover (2 screws).
2.
Before making the adjustment, confirm that
3
.
both surfaces where the thickness gauge will
be inserted are clean.
4.
Insert a 1.25 mm (0.049”) thickness gauge
5.
into the DG at the shown positions, and press
the DG plate down until the doctor blade lightly contacts the thickness guage.
6.
7.
Check that the DG is correct and even.
6-13
6B-3. Toner Tank Removal
1.
Take out the development unit.
2.
Remove the two right covers (2 screws each).
3.
Open the by-pass feed table.
4.
Lower the inner cover.
Remove the toner tank cover (2 screws).
5.
6.
Insert a sheet of paper under the toner tank to
catch falling toner.
7.
Take out the toner tank.
(2 screws, 1 con-
nector).
6-14
6B-4. Image Density Sensor Replacement
1. Take out the development unit, the cleaning
unit, the erase lamp unit, and the drum.
2. Remove the drum guide.
3. Remove the ID sensor PCB (1 screw, 1 connector).
4. Replace the ID sensor.
NOTE:
* Make sure the shield plate is set so that it
is held firmly by the screw.
* After replacement of the sensor, adjust
the ID sensor (See 6B-5).
6-15
6B-5. Image Density Sensor Adjustment
[FT3020]
CAUTION: Before adjusting the ID sensor after
new drum installation, cycle the
machine about 5 times in Free Run
mode to clean the setting powder from
the drum.
NOTE: It is better to use a plastic screw driver to
avoid possible drum damage.
* Adjustment Standard : +3 ± 0.2V
1.
Remove the rear cover (2 screws).
2.
Connect a multimeter to TP105 (hot line) and
TP102 (ground line).
Turn on DIP SW101 #6.
3.
4.
Open the front cover and turn on the main
switch.
5.
Adjust the VR on the front end of the ID sen-
sor PCB.
6-16
6B-6. Toner Supply Clutch Disassembly
[FT3020]
Remove the rear cover (2 screws).
1.
2.
Remove the main PCB (2 screws, 4 connectors).
Remove the C/B power pack holder (1 screw)
3.
and the bias lead wire clamp (1 screw).
4.
Loosen the screw securing the tension pulley
of development unit drive belt.
Remove the pulse generator sensor bracket (1
5.
screw).
Remove the development drive support
6.
bracket (3 screws).
7.
Remove the bushing from the toner supply
clutch shaft.
8.
Take off the toner supply drive pulley by turning it clockwise.
6-17
9. Remove the toner supply clutch sleeve and
spring together from the clutch hub by turning
the sleeve clockwise.
10. Clean the clutch hub, pulley, and spring, and
then grease the spring with Mobil Temp 78.
11. Reassemble.
CAUTION: When reassembling, make sure that
the chamfered end of the clutch sleeve
is to the inside. Also, make sure that
the right angle projection of the spring
is fitted into the outside notch.
6-18
6B-7. Toner Supply Solenoid Adjustment
1. Remove the main PCB (2 screws, 4 connectors). [FT3020]
Remove the optics PCB (1 screw, 4 connectors). [FT3050/FT3060]
2. Take off the paper feed drive belt tightener (1
screw).
3. Adjust the solenoid stroke to 2 ± 0.5 mm
(0.08” ± 0.02”) (2 screws)
.
4. Check that there is at least 1 mm clearance
between the clutch pawl and the clutch sleeve
when the solenoid is on.
6-19
July 1, ’85
6B-8. Image Density Sensor Adjustment
[FT3050/FT3060]
CAUTION: Before adjusting the ID sensor after
new drum installation,
machine about 5 times in Free Run
mode to clean the setting powder from
the drum.
NOTE: It is better to use a plastic screw driver to
avoid possible drum damage.
* Adjustment Standard : +4 ± 0.2V
Remove the rear cover (2 screws).
1.
Connect a multimeter to TPPSN (hot line) and
2.
TPGND (ground line) on the main PCB.
Turn on DIP SW101 #6.
3.
4.
Open the front cover and turn on the main
switch.
Adjust the VR on the front end of the ID sen-
5.
sor PCB.
cycle
the
6-20
6B-9. Toner Supply Clutch Disassembly
[FT3050/FT3060]
Remove the rear cover (2 screws).
1.
Remove the optics PCB (1 screw, 4 connec-
2.
tors).
Remove the C/B power pack holder (1 screw)
3.
and the bias lead wire clamp (1 screw).
Loosen the screw securing the tension pulley
4.
of development unit drive belt.
5.
Remove the pulse generator sensor bracket (1
screw).
Remove the development drive support
6.
bracket (3 screws).
Remove the bushing from the toner supply
7.
clutch shaft.
Take off the toner supply drive pulley by turn-
8.
ing it clockwise.
July 1, ’85
6-20-a
9. Remove the toner supply clutch sleeve and
spring together from the clutch hub by turning
the sleeve clockwise.
10. Clean the clutch hub, pulley, and spring, and
then grease the spring with Mobil Temp 78.
11. Reassemble.
CAUTION: When reassembling, make sure that
the chamfered end of the clutch sleeve
is to the inside. Also, make sure that
the right angle projection of the spring
is fitted into the outside notch.
6.
paper feed clutch assembly off the clutch
shaft (1 E-ring).
July 1, ’85
CAUTION:
Be careful not to lose the parallel key.
7. Hold the clutch hub and, take off the paper
feed drive pulley by turning the pulley clockwise.
8. Take the clutch sleeve and spring off of the
clutch hub.
CAUTION: Be careful not to damage the clutch
spring.
9. Clean the clutch hub, pulley, and spring.
10. Grease the clutch spring with Mobil Temp 78.
11. Reassemble.
6-36
CAUTION:
* When reassembling, make sure that
the projections on the clutch are
engaged with the clutch hub and the
clutch sleeve.
* Also, make sure that the chamfered
end of the clutch sleeve is to the
inside.
* When installing the paper feed
clutch assembly on the clutch shaft,
pull up the ratchet pawl to set the
clutch correctly.
6D-7. Registration Clutch Disassembly
1.
Remove the rear cover (2 screws).
Remove the main PCB (2 screws, 4 connec-
2.
tors). [FT3020]
Remove the optics PCB (1 screw, 4 connectors). [FT3050/FT3060]
Unhook the tension spring of the main drive
3.
chain.
Remove the main drive chain from the
4.
registration roller drive sprocket.
Remove the E-ring from the registration roller
5.
shaft.
Slide off the clutch hub with the clutch sleeve
6.
and spring while turning the registration roller
drive sprocket clockwise.
Remove the parallel key.
7.
Pushing the registration clutch pawl to the
8.
left, take off the registration roller drive
sprocket.
July 1, ’85
6-37
9. Clean the clutch parts and grease the clutch
spring with Mobil Temp 78.
10. Reassemble.
6-38
CAUTION:
* When reassembling make sure that
the projections on the clutch spring
are engaged with the clutch hub and
the clutch sleeve.
* Also, make sure that the chamfered
end of the clutch sleeve is to the
inside.
July 1, ’85
6D-8. By-pass Feed Table Removal
1.
Open the front cover and remove the front
inner cover (4 screws). [FT3020]
Open the front cover, push the slide unit to the
left, and remove the inner cover (5 screws).
[FT3050/FT3060]
Remove the E-ring from the front shaft of the
2.
by-pass feed table.
Remove the right rear cover (2 screws)
.
3
4.
Open the by-pass feed table and remove the
inner cover and the toner tank cover (2
screws).