Ricoh rt38 SPECIFICATIONS
LARGE CAPACITY TRAY
(Machine Code: A822)
21 September 1998 SPECIFICATIONS
1. OVERALL MACHINE INFORMATION
1.1 SPECIFICATIONS
Copy Paper Size: A4 sideways
B5 Sideways
8
" x 11" sideways
1/2
Copy Paper Weight: 64 ~ 105 g/m2 16~24 lb
Power Source: DC 24 V, 5 V (from the copier)
Power Consumption: 48 W
Dimensions (W x D x H ): 403 x 529 x 608 mm (15.9" x 20.9" x 24.0")
Weight: 22.0 kg (48.5 lb)
Tray Capacity: 3,500 sheets (may vary slightly depending on
paper weight)
A822-1
Options
MECHANICAL COMPONENT LAYOUT 21 September 1998
1.2 MECHANICAL COMPONENT LAYOUT
6
5
4
1. Bottom Plate
2. Tray Drive Belt
3
1
2
A822V500.WMF
3. Separation Roller
4. Transport Rollers
5. Feed Roller
6. Pick-up Roller
A822-2
21 September 1998 ELECTRICAL COMPONENT DESCRIPTION
1.3 ELECTRICAL COMPONENT DESCRIPTION
Refer to the electrical component layout on the reverse side of the point-to-point
diagram for the location of the components using the symbols and index numbers.
Symbol Name Functi on I ndex No.
Motors
LCT Lifts and lowers the LCT bottom plate to
M1
M2 Feed Drives all feed and transport rollers. 5
Magnetic Clutches
MC1 Feed Starts the paper feed from the LCT. 4
Switches
LCT Cover 1
SW1
SW2 LCT Cover 2 Detects if the LCT cover is opened or not. 14
SW3
SW4
SW5
SW6 Tray Down Lowers the LCT bottom plate 16
LCT Cover 3 Cuts the power line for LCT when the LCT
Feed Unit Cover 1 Detects if the feed unit cover is opened or
Feed Unit Cover 2
bring the paper to the feed position and
allow loading of the paper.
Ensures that +24V can be passed to the
LCT motor whether the cover is open or
closed.
cover is opened.
not.
Cuts the power line for LCT when the LCT
cover is opened.
11
15
13
6
7
Solenoids
SOL1
Sensors
S1
S2
S3 Paper Position Detects the paper position. 10
S4
S5
S6 Lift Detects the correct paper feed height. 2
Pick-up
Paper End Informs the CPU that there is no paper on
Paper Near End Informs the CPU that about 60 sheets of
Tray Down Informs the CPU that the LCT bottom plate
Feed
Controls the up-down movement of the
pick-up roller.
the LCT bottom plate.
paper remain on the LCT bottom plate.
is in the lowest position.
Control the paper feed clutch off-on timing
and the pick-up solenoid off timing.
3
8
9
12
1
Options
A822-3
MECHANICAL OPERATION 21 September 1998
2. DETAILED DESCRIPTION
2.1 MECHANICAL OPERATION
[G]
[E]
[C]
[A]
[B]
The LCT uses an FRR feed system which uses three rollers. The pick-up [A],
separation [B] and feed [C] rollers are common with those of the by-pass feed unit
of the mainframe but different from those of the paper feed stations in the paper
tray unit.
A822D500.WMF
[F]
[D]
The LCT feed motor [D] drives the pick-up, separation, feed, and transport [E]
rollers.
The pick-up and feed rollers rotate only when the LCT feed clutch [F] activates.
Paper feeding starts when the LCT pick up solenoid [G] activates.
A822-4
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