Ricoh FT5035-S PAPER TRAY UNIT PS270
PAPER TRAY UNIT
(Machine Code: A553)
13th January 1995 SPECIFICATIONS
1. SPECIFICATIONS
Configuration: Two-tray table
Copy Paper Size: Maximum A3/11" x 17"
Minimum B5/81/2" x 11"
Copy Paper Weight: 64 - 90 g/m2, 17 - 24 lb
Copy Paper Capacity: Approximately 250 sheets
Paper Feed Speed: 20 ~ 35 copies/minute (A4 / 8 1/2"X 11" sideways)
Power Source: DC 24V, 5V and AC 120V, 220~240V from the
main machine
Power Consumption: Maximum 43 W
Average 22 W
Dimensions: 620 mm/24.4" (width) X 632 mm /24.9" (depth) X
390 mm/15.4" (height)
Weight: Less than 30 kg/66 lb
(A553)
Paper Tray Unit
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3
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COMPONENT LAYOUT 13th January 1995
2. COMPONENT LAYOUT
2.1 MECHANICAL COMPONENT LAYOUT
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5
2
4
1. Paper Tray 1
2. Paper Feed Rollers
3. Relay Rollers
2.2 DRIVE LAYOUT
4. Lower Right Door
5. Paper Tray 2
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3
1
5
4
1. Vertical Transport Roller Gears
2. Paper Feed Clutch 1
3. Paper Feed Clutch 2
4. Main Motor
5. Relay Clutch
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13th January 1995 COMPONENT LAYOUT
2.3 ELECTRICAL COMPONENT DESCRI P TI ON
Refer to the electrical compone nt layou t on the reverse side of the Poin t to
Point Diagram (on waterproof paper).
Symbol Index No. Description Note
Motors
M1 4 Main Drives all the paper tray components
Circuit board
PCB1 1 Interface board
Sensors
S1 2 Tray set 1
S2 3 Tray set 2
S3 10 Relay 1 Detects when the leading edge of the paper
S4 11 Relay 2
S5 5 Paper end 1
S6 6 Paper end 2
Switches
SW1 12 Tray cover
Clutches
CL1 7 Paper feed 1
CL2 8 Paper feed 2
CL3 9 Relay Drives the rollers in the paper trays
Heaters
H1 13 Tray (Option) Turns on when the main switch is off, to keep
H2 14 Tray (Option)
Controls the paper feed tray unit in response
to signals from the copier
Detects whether the paper tray is in place
leaves the paper tray, to determine copier
relay clutch timing and jam detection timing
Detects when the paper tray runs out of paper
Detects whether the tray unit cover is open,
and cuts the 24 Vdc line if it is.
Starts to feed paper from the tray
the paper in the trays dry
(A553)
Paper Tray Unit
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OVERVIEW 13th January 1995
3. OVERVIEW
[A]
This paper feed unit is a two-tray type . Ea ch pape r tray [A] is a drawer type
that can hold up to 250 sheets of paper.
The paper feed mechanism uses a corner separator system. The funct ion of
the system is exactly the same as for the ma in mach ine excep t that there is
no paper size detection. The pape r size for e ach paper tray is input at the
operation panel, either by the technician or by the user.
All the electrical components of the paper tray are controlled by the copier
main board through the tray interface board.
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13th January 1995 DRIVE MECHANISM
4. DRIVE MECHANISM
[C]
[B]
[A]
(A553)
Paper Tray Unit
All the tray rollers are driven by the main motor [A] via timing belt s, clut che s
and a train of gears.
The main motor and the relay clutch [B ] are ene rgize d at the same time as
the Start key is pressed.
The paper feed clutch [C] is energized 300 ms after the main motor starts to
rotate. When th e pa pe r fee d clut ch for the selected paper tray is energized,
paper is fed from the paper tray to the main frame through the relay rollers.
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