PAPER TRAY UNIT
(Machine Code: A549/550)
10 May 1996 SPECIFICATIONS
Configuration: |
Two-tray table or three-tray table |
Copy Paper Size: |
Maximum A3/11" X 17" |
|
Minimum B5/81/2" X 11" |
Copy Paper Weight: |
52 - 105 g/m2, 14 - 28 lb |
Copy Paper Capacity: |
Approximately 500 sheets |
Paper Feed Speed: |
20 ~ 40 copies/minute (A4 / 81/2"X11" sideways) |
Power Source: |
DC 24V, 5V and AC 120V, 220~240V from the |
|
main machine |
Power Consumption: |
Maximum 110.5 W |
|
Average 50 W |
Dimensions: |
620 mm/24.4" (width) X 632 mm /24.9" (depth) X |
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390 mm/15.4" (height) |
Weight: |
Less than 36 kg/79.4 lb (Two-tray type) |
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Less than 38 kg/83.8 lb (Three-tray type) |
Options
A549/A550-1
COMPONENT LAYOUT |
10 May 1996 |
2. COMPONENT LAYOUT
1 |
2 |
3 |
4 |
5
9
6
8 7
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A549V502.img |
1. |
Paper Tray 1 |
6. |
Lower Right Door |
2. |
Pick-up Roller |
7. |
Paper Lift Motors |
3. |
Paper Feed Roller |
8. |
Paper Tray 3 (A549 model only) |
4. |
Relay Rollers |
9. |
Paper Tray 2 |
5. |
Reverse Roller |
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A549/A550-2
10 May 1996 |
COMPONENT LAYOUT |
1
4
8
2
7 |
1 |
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3
4
5
4
6
A549V503.img
1. |
Vertical Transport Roller Gears |
6. |
Main Motor |
2. |
Paper Feed Clutch 1 |
7. |
Relay Clutch |
3. |
Paper Feed Clutch 2 |
8. |
Timing Pulley |
4.Separation Roller Gears
5.Paper Feed Clutch 3
Options
A549/A550-3
COMPONENT LAYOUT |
10 May 1996 |
Refer to the electrical component layout on the reverse side of the Point to
Point Diagram (on waterproof paper).
Symbol |
Index |
Description |
Note |
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No. |
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Motors |
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M1 |
5 |
Main |
Drives all the components of the paper tray |
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M2 |
2 |
Tray lift 1 |
Raises the bottom plate in the paper tray |
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M3 |
30 |
Tray lift 2 |
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M4 |
29 |
Tray lift 3 (A549 only) |
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Circuit board |
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PCB1 |
1 |
Interface board |
Controls the paper tray in response to |
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signals from the copier |
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Sensors |
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S1 |
7 |
Tray upper limit 1 |
Detects the top of the stack to stop the tray |
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S2 |
18 |
Tray upper limit 2 |
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S3 |
19 |
Tray upper limit 3 (A549 |
lift motor |
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only) |
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S4 |
25 |
Relay 1 |
Detects the leading edge of the paper as it |
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S5 |
23 |
Relay 2 |
leaves the tray to control pick-up solenoid |
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S6 |
20 |
Relay 3 |
and jam detection timing |
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S7 |
28 |
Paper end 1 |
Detects when the paper tray is empty |
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S8 |
24 |
Paper end 2 |
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S9 |
21 |
Paper end 3 (A549 only) |
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Switches |
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SW1 |
22 |
Tray cover |
Detects whether the tray unit cover is open |
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and cuts the 24 Vdc power if it is |
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SW2 |
3 |
Tray set 1 |
Detects whether the paper tray is in place |
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SW3 |
4 |
Tray set 2 |
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SW4 |
6 |
Tray set 3 (A549 only) |
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Magnetic clutches |
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CL1 |
9 |
Paper feed 1 |
Starts feeding paper from the tray |
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CL2 |
12 |
Paper feed 2 |
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CL3 |
15 |
Paper feed 3 (A549 only) |
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CL4 |
11 |
Relay |
Drives the rollers in the paper trays |
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Solenoids |
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SOL1 |
8 |
Paper pick-up 1 |
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SOL2 |
13 |
Paper pick-up 2 |
Lifts/drops the pick-up roller |
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SOL3 |
16 |
Paper pick-up 3 (A549 |
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only) |
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SOL4 |
10 |
Separation 1 |
Lifts/drops the separation roller |
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SOL5 |
14 |
Separation 2 |
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SOL6 |
17 |
Separation 3 |
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Heaters |
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H1 |
26 |
Tray (Option) |
Turns on when the main switch is off to |
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H2 |
27 |
Tray (Option) |
keep the paper in the trays dry |
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A549/A550-4
10 May 1996 |
OVERVIEW |
3. OVERVIEW
[A]
[A]
[A]
A549D502.img
There are two types of paper tray unit: the two-tray and three-tray types.
Each paper tray [A] is a drawer type that can hold up to 500 sheets of paper.
The paper feed mechanism uses an FRR feed system. The function of the system is exactly the same as for the main machine except that there is no paper size detection. The paper size for each paper tray is input at the operation panel, either by the user or by a technician.
All the electrical components of the paper tray are controlled by the copier main board through the tray interface board.
Options
A549/A550-5
DRIVE MECHANISM |
10 May 1996 |
4. DRIVE MECHANISM
[E]
[B]
[D]
[F]
[A]
[C]
A549D503.img
All the tray rollers are driven by the main motor [A] via timing belts, clutches and a train of gears.
Drive is transmitted to the timing pulley [B] through the timing belt [C], relay clutch [D] and the gears.
Paper Feed Unit 1:
The drive from the timing pulley is transmitted to the unit through the timing belt [E].
Paper Feed Unit 2:
The drive from the timing pulley is directly transmitted to the unit.
Paper Feed Unit 3:
The drive from the timing pulley is transmitted to the unit through the timing belt [F].
The main motor and the relay clutch are energized at the same time that the
Start key is pressed.
The paper feed clutch is energized 300 ms after the main motor starts to rotate. When the paper feed clutch for the selected paper tray is energized, paper is fed from the paper tray to the main machine through the relay rollers.
A549/A550-6