Ricoh B230 Service Manual
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![Page 1220
B793 40 SM
2.3 PROOF TRAY
Proof Tray Junction Gate Control [A]: Proof Tray Gate Solenoid
Roller Drive:
ƒ Proof Tray Exit Roller [B], Proof Tray Transport Roller [C]: Controlled by the Upper
Transport Motor
ƒ Entrance Roller [D], Transport Roller [E]: Controlled by the Entrance Motor
Jam Detection: Proof Tray Exit Sensor [F]
Tray Full Detection: Proof Tray Full Sensor [G]](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1219.png "Page 1220
B793 40 SM
2.3 PROOF TRAY
Proof Tray Junction Gate Control [A]: Proof Tray Gate Solenoid
Roller Drive:
ƒ Proof Tray Exit Roller [B], Proof Tray Transport Roller [C]: Controlled by the Upper
Transport Motor
ƒ Entrance Roller [D], Transport Roller [E]: Controlled by the Entrance Motor
Jam Detection: Proof Tray Exit Sensor [F]
Tray Full Detection: Proof Tray Full Sensor [G]")
![Page 1221
Shift Tray
SM 41 B793
B793
Booklet
Finisher
2.4 SHIFT TRAY
2.4.1 UP/DOWN MOTION
The shift tray motor [A] moves the tray up and down.
The upper limit switch [B] detects when the tray moves up too far, and cuts power to the
shift tray motor.
The shift tray position sensor [C] checks when the tray (or the top of the stack) is at the
correct height to receive paper.
ƒ Shift Mode: This is checked every 5 sheets
ƒ Staple Mode: This is checked every stack
The lower limit sensor [D] detects...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1220.png "Page 1221
Shift Tray
SM 41 B793
B793
Booklet
Finisher
2.4 SHIFT TRAY
2.4.1 UP/DOWN MOTION
The shift tray motor [A] moves the tray up and down.
The upper limit switch [B] detects when the tray moves up too far, and cuts power to the
shift tray motor.
The shift tray position sensor [C] checks when the tray (or the top of the stack) is at the
correct height to receive paper.
ƒ Shift Mode: This is checked every 5 sheets
ƒ Staple Mode: This is checked every stack
The lower limit sensor [D] detects...")
![Page 1222
B793 42 SM
2.4.2 SIDE-TO-SIDE MOTION
The shift motor [A] moves the shift roller [B] from side to side.
The shift motor HP sensor [C] detects when the mechanism is at home position.
The upper transport motor rotates the shift roller.
When shift mode is used, the shift motor turns on after each page is fed out. Then, for the
next set, the shift motor turns the other way. In this way, the user can easily divide the sets.](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1221.png "Page 1222
B793 42 SM
2.4.2 SIDE-TO-SIDE MOTION
The shift motor [A] moves the shift roller [B] from side to side.
The shift motor HP sensor [C] detects when the mechanism is at home position.
The upper transport motor rotates the shift roller.
When shift mode is used, the shift motor turns on after each page is fed out. Then, for the
next set, the shift motor turns the other way. In this way, the user can easily divide the sets.")
![Page 1223
Booklet Tray
SM 43 B793
B793
Booklet
Finisher
2.5 BOOKLET TRAY
The sensor actuator arm [A] rests on the top of the stack of stapled booklets as they are
output to the lower tray. A flap depressor [B] keeps the open ends of the booklets down.
The front booklet tray full sensor [C] and rear booklet tray full sensor [D] detect when the
tray is full of booklets.
ƒ The front booklet tray full sensor is mounted higher than the rear booklet tray full
sensor.
ƒ The booklet tray is stationary....](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1222.png "Page 1223
Booklet Tray
SM 43 B793
B793
Booklet
Finisher
2.5 BOOKLET TRAY
The sensor actuator arm [A] rests on the top of the stack of stapled booklets as they are
output to the lower tray. A flap depressor [B] keeps the open ends of the booklets down.
The front booklet tray full sensor [C] and rear booklet tray full sensor [D] detect when the
tray is full of booklets.
ƒ The front booklet tray full sensor is mounted higher than the rear booklet tray full
sensor.
ƒ The booklet tray is stationary....")
![Page 1226
B793 46 SM
2.6 JOGGER UNIT
The jogger is used in corner-staple mode and in booklet mode.
For each sheet of paper when it arrives in the staple tray, the following is done.
ƒ The jogger motor [A] drives the jogger fences [B].
ƒ The positioning roller solenoid moves the positioning roller [C] onto the top of the sheet.
Then the lower transport motor turns on and the positioning roller rotates to push the
sheet of paper against the stopper (there are two stoppers: stopper L or stopper S the
one...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1225.png "Page 1226
B793 46 SM
2.6 JOGGER UNIT
The jogger is used in corner-staple mode and in booklet mode.
For each sheet of paper when it arrives in the staple tray, the following is done.
ƒ The jogger motor [A] drives the jogger fences [B].
ƒ The positioning roller solenoid moves the positioning roller [C] onto the top of the sheet.
Then the lower transport motor turns on and the positioning roller rotates to push the
sheet of paper against the stopper (there are two stoppers: stopper L or stopper S the
one...")
Shift Tray SM 41 B793 B793 Booklet Finisher 2.4 SHIFT TRAY 2.4.1 UP/DOWN MOTION The shift tray motor [A] moves the tray up and down. The upper limit switch [B] detects when the tray moves up too far, and cuts power to the shift tray motor. The shift tray position sensor [C] checks when the tray (or the top of the stack) is at the correct height to receive paper. ƒ Shift Mode: This is checked every 5 sheets ƒ Staple Mode: This is checked every stack The lower limit sensor [D] detects when the tray is full. At this point, the tray cannot move down any more.
B793 42 SM 2.4.2 SIDE-TO-SIDE MOTION The shift motor [A] moves the shift roller [B] from side to side. The shift motor HP sensor [C] detects when the mechanism is at home position. The upper transport motor rotates the shift roller. When shift mode is used, the shift motor turns on after each page is fed out. Then, for the next set, the shift motor turns the other way. In this way, the user can easily divide the sets.
Booklet Tray SM 43 B793 B793 Booklet Finisher 2.5 BOOKLET TRAY The sensor actuator arm [A] rests on the top of the stack of stapled booklets as they are output to the lower tray. A flap depressor [B] keeps the open ends of the booklets down. The front booklet tray full sensor [C] and rear booklet tray full sensor [D] detect when the tray is full of booklets. ƒ The front booklet tray full sensor is mounted higher than the rear booklet tray full sensor. ƒ The booklet tray is stationary. When it becomes full, the stapling and folding job stops until booklets are removed from the tray. ƒ If the booklet tray is not installed (this is detected if the front and rear sensors remain OFF), the machine will not operate in the booklet staple and fold mode. When booklet mode is selected, the tray full message appears on the operation panel. The combinations of the two actuators and two sensors when the actuator arm rises determines the number of booklets that the tray can hold before the job stops. Tray full detection depends on the size of the paper and the number of sheets in one stapled and folded booklet. The condition detected by the machine ( Ready Full 1, Full 2, Full 3; see the illustration above) depends on the states of the sensors, as shown in the table below.
B793 44 SM Condition Front Sensor Rear Sensor Ready ON OFF Full 1 ON ON Full 2 OFF ON Full 3 (or booklet tray not installed) OFF OFF In the tables below: ƒ Sht denotes sheets in a stack. ƒ Cnt denotes Count (see below for an explanation). After a booklet is feed out, the fold roller motor stops the exit roller. The machine then monitors the tray full sensors every feed-out of a paper stack. The machine checks a certain condition, based on the size of the paper and the number of sheets in the booklet. Two examples are shown below the table. Tell the operators that the number of sheets that the lower tray can hold will vary greatly. - Lower Tray Full Condition Tables - A3 (DLT) Sheet 1 2 3 4 5 6 7 8 9 10 Full 1 15 Cnt - - - - - - - - - Full 2 - 3 Cnt 11 Cnt - - - - - - - Full 3 - - - 16 Cnt 12 Cnt 2 Cnt 3 Cnt 5 Cnt 6 Cnt 7 Cnt A4 (LT) Sheet 1 2 3 4 5 6 7 8 9 10 Full 1 15 Cnt - - - - - - - - - Full 2 - 8 Cnt 16 Cnt 19 Cnt 5 Cnt2 Cnt 2 Cnt 2 Cnt 3 Cnt 4 Cnt Full 3 - - - - - - - - - -
Booklet Tray SM 45 B793 B793 Booklet Finisher - Examples - After the copier makes a booklet with 1 sheet of 11 x 17 inch paper, the machine checks every feed-out of a paper stack for the ‘Full 1’ condition. If the Full 1 condition occurs 15 times (‘15 Cnt’ in the table above), the machine detects that the tray is full. After the copier makes a booklet with 5 sheets of A4/LT paper, the machine checks every feed-out of a paper stack for the ‘Full 2’ condition. If the Full 3 condition occurs 5 times (‘5 Cnt’ in the table above), the machine detects that the tray is full.
B793 46 SM 2.6 JOGGER UNIT The jogger is used in corner-staple mode and in booklet mode. For each sheet of paper when it arrives in the staple tray, the following is done. ƒ The jogger motor [A] drives the jogger fences [B]. ƒ The positioning roller solenoid moves the positioning roller [C] onto the top of the sheet. Then the lower transport motor turns on and the positioning roller rotates to push the sheet of paper against the stopper (there are two stoppers: stopper L or stopper S the one that is used depends on the paper size, as we shall see later.) The jogger HP sensor [D] detects when the jogger fences are at home position (away from the stack). The staple tray exit sensor [E] detects if a jam occurs when the machine feeds the stack out at the bottom of the jogger tray.
Exit Guide Plate, Paper Feed Out SM 47 B793 B793 Booklet Finisher 2.7 EXIT GUIDE PLATE, PAPER FEED OUT The exit guide plate [A] opens when a stapled stack is fed out. Also it opens every time a sheet is fed to the staple tray, to prevent the paper running into the exit roller during stacking. The exit guide plate motor [B] drives the exit guide plate. The exit guide plate HP sensor [C] detects when the guide plate is at home position. The stack feed-out belt feeds out stapled stacks. The pawl [D] on the belt moves the stack out to the exit. The stack feed-out motor [E] drives the belt. The stack feed-out HP sensor [F] detects when the belt is at home position.
B793 48 SM 2.8 STAPLER UNIT MOVEMENT The machine has only one stapler [A]. It does stapling for booklets and for corner stapling. The stapler unit motor [B] moves the stapler from side to side. The stapler unit HP sensor [C] detects when the stapler unit is at home position. In corner staple mode, at the start of the job, the stapler moves to the position where the stapler will be inserted. In booklet mode, at the start of a job, the stapler moves to a starting position that depends on the paper size, as follows: ƒ 8.5 x 14 inches or shorter: Rear side staple position ƒ Longer than 8.5 x 14 inches: Center position. When the stapler is at the center position, bracket [E] releases ‘stopper L’, which catches the bottom edge of the paper for booklet stapling with longer paper sizes. This will be described in a later section. If the stapler safety sensor [D] detects the stapler unit at its initialization, the stapler unit stops moving until the stack feed out belt pawl and stopper S are at home position. If the stapler unit does not stop, it could collide with the pawl and/or the stopper.
Stacking for Booklet Stapling SM 49 B793 B793 Booklet Finisher 2.9 STACKING FOR BOOKLET STAPLING 2.9.1 OVERVIEW There are two stoppers near the stapler unit. These stoppers hold the stack of paper in the correct position during stacking. The stoppers are called ‘stopper S’ and ‘stopper L’. Stopper S is used for legal size paper, or shorter than 8.5 x 14 inches. Stopper L is used for paper that is longer than 8.5 x 14 inches. ƒ In corner stapling mode, the pawl on the stack feed-out belt holds the stack of paper. For booklet stapling, this pawl stays at home position, which is on the rear side, so it does not interfere with booklet stapling. 2.9.2 8.5 X 14 (LEGAL) OR SHORTER At the start of the set, the upper retraction motor [A] turns on, and stopper S [B] moves down into position to catch the paper . The upper retraction motor also moves the upper clamp roller [C] into contact with the stack .
B793 50 SM When the stack is complete, stopper S moves away [D], and the machine feeds the stack to the correct position for stapling. To do this, the upper clamp roller motor [E] rotates the upper clamp roller. 2.9.3 LONGER THAN 8.5 X 14 INCHES At the start of the set, the stapler moves to the center position. At this position, a bracket [A] on the stapler unit pushes stopper L [B]. The pawl [C] on the stopper L assembly then moves into position to catch the paper. The upper clamp roller holds the stack (see the