Ricoh A053 Technical Bulletin FT6750
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
PREPARED BY:M. Ninomiya
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
Page: 01-21 Table location: Paper Feed/FUNCTION
Incorrect: Drives the 1st feed section.
Correct: Drives the feed section.
Page: 01-21 Table location: Feed Relay Clutches/LOCATION
Incorrect: 48,45
Correct: 38,45
Page: 01-27 Location: left side, second box from bottom
Incorrect: Paper Pack
Correct: Power Pack
FROM: COPIER TECHNICAL
SUPPORT SECTION
DATE: Dec.31 1990
PAGE: 1 of 10
MODEL: F40
Page: 02-18 Location: 2nd line in the 2nd paragraph
Incorrect: switch or the lift sensor (ARDF/RDH) is on.)
Correct: switch is on.)
Page: 02-26 Location: 2nd line from the bottom of the page
Incorrect: development roller gear [B] when
Correct: development roller gears [C] when
Page: 02-33 Location: In the 1st illustration
Incorrect: Drum Temp 15°C
Correct: Drum Temp 30°C
Page: 02-33 Location: 2nd illustration
Modified as below:
40ms
Forward Scan
Scanner On
290ms
Development
Bias
ID Sensor Pattern For Image
(Selected Bias)
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 02-34 Location: Main PCB box (circuit diagram)
Incorrect: CFL / QC Trigger
Correct: PQC / PTL Trigger
Page: 02-39 Location: End of the 7th line from the bottom of the page
Incorrect: then it stops any further toner supply to the development tank.
Correct: then the CPU changes from detect mode to fixed toner supply mode.
Page: 02-43 Location: The last line in the 3rd paragraph
Incorrect: LOW signal to CN103-7
Correct: LOW signal to CN101-A10
Page: 03-04 Location: item #6 in list
Delete item #6 (Toner Collection Bottle) and renumber the list.
Page: 03-07 Location: 2nd (Right side of the page) and 3rd (Bottom) illustraion
Delete the 2nd illustration and make callouts [D] & [E] to [B] & [C] on the 3rd illustration.
Page: 03-07 Location: Step 6
DATE: Dec.31 1990
PAGE: 2 of 10
Delete step 6 (Slide out the paper feed unit....) and renumber the steps that follow on this
page and the next page
Page: 03-07 Location: Step 7
Incorrect: 7. Remove the left top cover plate [D]and the scanner lock plate[E] (1 screw)
Correct: 6. Remove the left top cover plate [B]and the scanner lock plate[C] (1 screw)
Page: 03-14 Location: step 29
Incorrect: 29. Check the light intensity (SP48).
Correct: 29. Set DIP SW 902-8 to ON, then check the light intensity (SP48).
Page: 04-01 Table location: A. OPTICS section of PM table: Exposure Lamp
Incorrect: I I I I
Correct: I.C I.C I.C I.C
Page: 04-03 Table location: G. OTHERS section of PM table: Drive Chains and Belts
Incorrect: I I I Replace if necessary.
Correct: I.L I.L I.L Replace if necessary.(Lubricate chain if necessary)
Page: 04-03 Table location: G. OTHERS section of PM table: Vacuum Fan Filter
Incorrect: Vacuum Fan Filter
Correct: Transport Fan Filter
Page 4-5 & 6 Location: 2.2 LANGUAGE CODE TABLE and 2.3 DIP SWITCH TABLE
Change LANGUAGE CODE TABLE into section 2.3; change DIP SWITCH TABLE into
section 2.2.
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 04-05 Location: LANGUAGE CODE TABLE
Incorrect: Nashua South Africa (A4)
SP-12
SP-13
Correct: Nashua South America (A4)
SP-12 (Inch)
SP-13 (Metric)
Page: 04-05 Location: LANGUAGE CODE TABLE
Add "2: Spanish" to the list of languages in the SP-12 column.
Add "5: Spanish" and "5: Dutch" to the list of languages in the SP-13 column.
Note: This list is the same as that in row 2 (0.1.0.)
Page: 04-07 Location: Second DIP SWITCH (101) table from the top
DATE: Dec.31 1990
PAGE: 3 of 10
Delete 2nd table with its above explanation. (* The factor setting of . . . )
Page: 04-11 Location: first paragraph
Correct this paragraph as follows:
If the finisher malfunctions, use Shift Tray Mode and Staple Mode to by-pass the
mainframe data. Then test operate the finisher to determine whether the cause of
the malfunction is in the finisher.
Page: 04-11 Location: step #1 of Shift Tray Mode
Incorrect: SW 101-1,2,and 4 to
Correct: SW 101-1 and 2 to
Page: 04-11 Location: step 3 of Shift Tray Mode
Incorrect: 3. Press SW 100 to start the finisher operation.
Correct: 3. Press SW 100 to put finisher off-line operation on standby.
Page: 04-11 Location: step 5 of Shift Tray Mode
Incorrect: 5. Press SW 101 to stop the finisher operation.
Correct: 5. Press SW 101 to end finisher off-line operation.
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 04-11 Location: step 2 of Staple Mode
Incorrect: 2. Press SW 100 to start the finisher operation.
Correct: 2. Press SW 100 to put finisher off-line operation on standby.
Page: 04-11 Location: step 4 of Staple Mode
Incorrect: 4. Press SW 101 to stop finisher operation.
Correct: 4. Press SW 101 to end finisher off line operation.
Page: 04-13 Location: bold-text paragraph
Incorrect: 34, 80, 81, 90, 91,
Correct: 34, 80, 81, 91,
Page: 4-16,17 Location: table
Incorrect: 11 Not Used (Japanese Machine Only)
12 Second Paper Feed Clutch
13 Third Paper Feed Clutch
21 Not Used
22 Second Pick-up Solenoid
23 Third Pick-up
DATE: Dec.31 1990
PAGE: 4 of 10
33 First Pick-up Solenoid
Correct: 11 Second Paper Feed Clutch
12 Third Paper Feed Clutch
13 Not Used (Japanese Machine Only)
21 Second Pick-up Solenoid
22 Third Pick-up Solenoid
23 Not Used (Japanese Machine Only)
33 Manual Pick-up Solenoid
Page: 04-18 Table location: Mode No.8/Comments
Incorrect: (Page 4-9)
Correct: (Page 4-15)
Page: 04-18 Table location: Mode No. 9/Comments
Incorrect: (Page 4-10)
Correct: (Page 4-16)
Page: 04-19 Table location: Mode No. 26/Data
Incorrect: 0: NO (50)
Correct: 0: NO
Incorrect: 1: YES (30)
Correct: 1: YES
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 04-20 Table location: Mode No. 34/Comments
Incorrect: Shifts all bias levels including ID pattern bias.
Correct: Shifts all bias levels except for ID Pattern bias.
Page: 04-21 Table location: Mode No. 48/Comments
Incorrect: (Factory setting = 65)
Correct: (Factory setting = 64, Max. 80V)
Page: 04-22 Table location: Mode No. 60/Function (last line)
Incorrect: less than 0.5V
Correct: less than 0.4V
Page: 04-23 Table location: Mode No. 68/Comments
Delete the following text: No double counts of A3 or 11"x17" copies fed from by-pass
feed table.
Page: 04-24 Table location: Mode No. 83/Comments
Incorrect: is displayed. If "0" is entered, max. is 999. Otherwise, max. is number entered.
Correct: is displayed. Max. is the number entered.
DATE: Dec.31 1990
PAGE: 5 of 10
Page: 04-29 Location: LANGUAGE CODE TBLE
Add "5: Spanish" and "5: Dutch" to the list of languages in the SP13 column.
Note: This list is the same as that in row 2 (010).
Page: 04-30 Location: Items #10,17 and 18
Replace item #10 with item #17 (i.e. delete #10 and change #17 into #10) and
change #18 into #17.
Page: 05-10 Location: Illustration
Make a callout [C] to unmarked side plate cutout. Spring plate callout [C] change to [D]
Page: 05-28 Location: Steps 3 and 4
Incorrect: one-eighth of Vsg.
Correct: one-tenth of Vsg.
Page: 05-32 Location: Steps 9 -- 13
Renumber 9 through 13 to 7 through 11. (Numbers are continuing from previous page.)
Page: 05-46 Location: HOT ROLLER TEMPERATURE ADJUSTMENT, Measure
Incorrect: 10°C/step
Correct: 1°C/step
Page: 05-58 Location: step 5
Incorrect: [A] (2 screws).
Correct: [A] (4 screws).
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 05-58 Location: step 6
Incorrect: [B] (4 screws).
Correct: [B] (2 screws).
Page: 05-69 Location: 7.5 LIGHT INTENSITY ADJUSTMENT, step 3
Incorrect: ID level and make ten A3/LDG copies to stabilize drum sensitivity.
Correct: ID level and make more than ten A3/LDG copies, then check the light intensity.
Page: 05-69 Location: 7.5 LIGHT INTENSITY ADJUSTMENT, step 5
Renumber #5 to #4.
Page: 05-70 Location: ADS VOLTAGE ADJUSTMENT, Measure
Delete the following text: The ADS output voltage on the main PCB can be changed.
Page: 05-76 Location: illustration
Lower right part of illustration overlaps text. Move it up.
Page: 05-87 Location: step 6
Incorrect: 6 Turn on the D2 switch
Correct: 6 Turn on the D1 switch
DATE: Dec.31 1990
PAGE: 6 of 10
Page: 05-91 Location: section title
Incorrect: 8.13 CHARGE CORONA CURRENT ADJUSTMENT
Correct: 8.13 CHARGE CORONA CURRENT ADJUSTMENT WHEN USING THE DRUM
SHOE
Page: 05-94 Location: step 8
Incorrect: 8. Turn on the SC D2
Correct: 8. Turn on the SC D1
Page: 05-95 Location: Optimum Adjustment Value
Incorrect: (Normal:D18-D2)
Correct: (Normal: D1 and D2)
Page: 05-95 Location: step 10
Delete #10 and renumber the steps that follow.
Page: 05-97 Location: NOTE
Incorrect: After turning on the PCC switch,
Correct: After turning on the PQC switch,
Page: 07-07 Location: Lines 3 -- 5 in 2nd paragraph
Incorrect: feed-in solenoid
Correct: feed-in clutch
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 07-07 Location: 1st line in the 3rd paragraph
Incorrect: and the paper width
Correct: and the original width
Page: 07-07 Location: The 7th line from the bottom
Incorrect: the original until 140 milliseconds
Correct: the original until 85 milliseconds
Page: 07-33 Location: section title
Incorrect: 13.2 PAPER FEED UNIT REMOVAL
Correct: 13.2 FEED-IN UNIT REMOVAL
Page: 07-36 Location: section title
Incorrect: 13.5 PAPER FEED CLUTCH REPLACEMENT
Correct: 13.5 FEED-IN CLUTCH REPLACEMENT
Page: 07-38 Locaton: section title
Incorrect: 13.7 PAPER FEED MOTOR REPLACEMENT
Correct: 13.7 BELT DRIVE MOTOR REPLACEMENT
DATE: Dec.31 1990
PAGE: 7 of 10
Page: 07-40 Location: section title
Incorrect: 13.9 PAPER FEED ROLLER REPLACEMENT
Correct: 13.9 ORIGINAL FEED ROLLER REPLACEMENT
Page: 07-46 Location: after step 3
Add the following note:
NOTE: When removing the PCB, be careful not to damage any of the components that
protrude from the board.
Page: 08-13 Location: top illustration
Switch callouts [A] and [B].
Page: 09-17 Location: 3rd line in 1st paragraph.
Incorrect: When the DF is lifted
Correct: When the RDH is lifted
Page 09-19 Location: list
Incorrect: 10. Pan head Screw 4 x 6 9
Incorrect: 11. Pan head Screw 1
Incorrect: 12. Pan head Screw 4 x 8 8
Correct: 10. Pan head Screw 4 x 6 11
Correct: 11. Washer 1
Correct: 12. Shoulder Screw 4 x 10 8
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 09-19 Location: item 9 in list
Delete item #9 and renumber the list.
Page: 09-25 Location: step #18, substep 1)
Incorrect: 1) Remove the RDH rear cover [A] (5 screws), then set the DIP SW 101-2 on to
change timing registaration mode.
Correct: 1) Remove the RDH rear cover [A] (5 screws), then turn on DIP SW 101-2 to
change to timing registration mode.
Page: 09-32 Location: Between step 1 and 1)
Add the following text, then renumber the steps:
1) Remove the RDH rear cover [A] (5 screws), then turn on DIP SW 101-2
to change to timing registration mode.
Page: 10-06 Location: 2nd line of 1st paragraph
Incorrect: The motor and
Correct: The belt-drive motor and
Page: 10-20 Location: item 10 of list
DATE: Dec.31 1990
PAGE: 8 of 10
Incorrect: 10. Pan Head Screw with Washer
Correct: 10. Pan head Screw (Long)
Page: 10-20 Location: item 15 of list
Incorrect: 15. Rubber Tightener
Correct: 15. Rubber Washer
Page: 10-20 Location: Between items 18 and 19 of list
Add the following item, then renumber the list:
19. Decal -- Staple Position
Page: 12-09 Location: Code #56, Definition
Incorrect: SC #55 lights
Correct: SC#56 lights
Page: 12-12 Location: Code #86, Definition
Incorrect: the SC #85 counter
Correct: the SC #86 counter
Page: 12-16 Location: Code #B8, Definition
Incorrect: SC #B8 if the does
Correct: SC #B8 if the one-turn sensor does
Page: 12-18 Table location: row 5 in the Name column
Incorrect: 2nd and 3rd Lift
Correct: 1st, 2nd and 3rd Lift
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 12-18 Table location: row 8 in the Problem column
Incorrect: SC (41:1st, 42:2nd, 43:3rd, 44:4th)
Correct: SC (41:1st, 42:2nd, 43:3rd)
Page: 12-19 Table location: row 11 in the Problem column
Incorrect: SC 29 is indicated 3. . .
Correct: SC 29 is indicated 3.83. . .
Page: 12-19 Table location: row 12 in the Problem column
Incorrect: SC 28 is indicated 3.7. . .
Correct: SC 28 is indicated 3.83. . .
Page: 12-19 Table location: row 13 in the Problem column
Incorrect: SC 2B is indicated 3. . .
Correct: SC 2B is indicated 1.83. . .
Page: 12-19 Table location: row 14 in the Problem column
Incorrect: SC 2A is indicated 0.3. . .
Correct: SC 2A is indicated 1.83. . .
DATE: Dec.31 1990
PAGE: 9 of 10
Page: 12-20 Table location: row 4 in the Problem column
Incorrect: SC 82 is indicated
Correct: SC 81 is indicated.
Page: 12-21 Location: step 2
Incorrect: (2) Repeat step 1 to obtain
Correct: (2) Press SW100 on the RDH board to obtain
Page: 12-22 Table location: row 3 in the Definition column
Incorrect: the feed-in motor
Correct: the feed-out motor
Page: 12-22 Table location: row 5 in the Definition column
Incorrect: two-sides Duplex
Correct: two-side Duplex
Page: 12-22 Table location: row 11 in the Condition column
Incorrect: Feed-out sensor stays on.
Correct: Feed-out sensor stays on. (A4/81/2" x 11"(s) or smaller originals)
Page: 12-22 Table location: row 11 in the Definition column
Incorrect: 850 ms after the feed-out sensor turn on.
Correct: 850 ms after the feed-out motor turns on again to feed out the 1st original.
Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION
Page: 12-22 Table location: row 12 in the Definition column
Incorrect: not turns off within 850 ms the inverter
Correct: not turn off within 850 ms after the inverter
Page: 12-22 Table location: row 14 in the Condition column
Incorrect: is not turned at correct time.
Correct: is not turned on at correct time.
Page: 12-23 Table location: row 5 in the Definition column
Incorrect: RDH receives the feed-in signal
Correct: RDH receives the feed-out signal
DATE: Dec.31 1990
PAGE: 10 of 10
Technical Bulletin No. RTB-002
SUBJECT: Point to Point Diagram Correction DATE: Jan. 15, ’91
PAGE: 1 of 2
PREPARED BY: M. Kitajima
FROM: Copier Technical Support Section
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
Please correct your point to point diagram as follows:
1) Location on Copier P to P: G4
INCORRECT CORRECT
(W) T19
T20
(H) CN701-2
(H) CN672-2
(H) CN609-2
Cleaning Heater
Drum Heater
Anticondensation Heater
CN701-1 (B)
CN672-1 (B)
CN609-1 (B)
(W) T19
RA2
T20
(H) CN701-2
(H) CN672-2
(H) CN609-2
MODEL: F40
Cleaning Heater
Drum Heater
Anticondensation Heater
CN701-1 (B)
CN672-1 (B)
CN609-1 (B)
2) Location on Copier P to P: C5
The signal description is "Fusing Exit Sensor".
VC [5]
C-GND [0]
Fusing
Exit Sensor [ 5]
Fusing Cooling
Fan Motor [ 24]
Fusing
Unit Set [0]
Toner
Supply MC [ 24]
Cleaning SOL [ 24]
CN102-B5 (R)
CN102-B4 (T)
CN101-A20 (H)
CN102-A13 (G)
CN101-B18 (G)
CN101-A18 (C)
CN655-2
CN687-2
CN688-2
NOTE: RA2 is closed.
Fusing
Cooling
Fan M
Toner
Supply
MC
Cleaning
SOL
CN655-2 (W)
CN687-2 (W)
CN688-2 (W)CN101-B7 (C)
Technical Bulletin No. RTB-002
SUBJECT: Point to Point Diagram Correction DATE: Jan. 15, ’91
PAGE: 2 of 2
Option (ARDF and RDH) P to P
INCORRECT
Main PCB
GND [0]
Door Safety [ 5]
Scan2 [ 5]
Scan3 [ 5]
2nd Lift [ 5]
3rd Lift [ 5]
2nd Relay [ 5]
2nd Relay MC [ 24]
Lift Motor 2 [ 24]
Lift Motor 3 [ 24]
Feed MC2 [ 24]
Feed MC3 [ 24]
2nd Pick-up [ 24]
3rd Pick-up [ 24]
Bank Drive Motor [ 24]
Paper Feed Motor PCB
CN103-B8
CN103-A8
CN103-B14
CN103-A15
CN103-A4
CN103-B4
CN104-B9
CN104-A9
CN103-B2
CN103-A2
CN104-B5
CN104-A6
CN104-A8
CN104-B8
CN103-A13
(T)
(G)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(C)
(C)
(H)
(M)
(G)
(G)
(G)
CN464
-18
-10
-26
-27
-11
-12
-28
-14
-2
-3
-29
-30
-31
-19
-13
CN1-4 (P)
(Y)
(P)
(Y)
(Z)
(C)
(Y)
(P)
(Y)
(Z)
(C)
(P)
(Y)
(P)
CN453-1
CN453-2
CN453-3
CN453-4
CN453-5
CN453-7
CN453-8
CN453-9
CN453-10
CN453-11
CN453-12
CN453-13
[ 5] Scan2
[ 5] Scan3
[ 5] 2nd Lift
[ 5] 3rd Lift
[ 5] 2nd Relay
[ 24] 2nd Relay MC
[ 24] Lift Motor 2
[ 24] Lift Motor 3
[ 24] Feed MC2
[ 24] Feed MC3
[ 24] 2nd Pick-up
[ 24] 3rd Pick-up
Cassette
Bank
PCB
CORRECT
Please add the cassette bank drive PCB and motor to your P to P.
Main PCB
Door Safety [ 5]
2nd Relay MC [ 24]
Lift Motor 2 [ 24]
Lift Motor 3 [ 24]
Feed MC2 [ 24]
Feed MC3 [ 24]
2nd Pick-up [ 24]
3rd Pick-up [ 24]
Bank Drive Motor [ 24]
GND [0]
Scan2 [ 5]
Scan3 [ 5]
2nd Lift [ 5]
3rd Lift [ 5]
2nd Relay [ 5]
CN103-B8
CN103-A8
CN103-B14
CN103-A15
CN103-A4
CN103-B4
CN104-B9
CN104-A9
CN103-B2
CN103-A2
CN104-B5
CN104-A6
CN104-A8
CN104-B8
CN103-A13
(T)
(G)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(C)
(C)
(H)
(M)
(G)
(G)
(G)
A
B
C
CN464
-18
-10
-26
-27
-11
-12
-28
-14
-2
-3
-29
-30
-31
-19
-13
(B)
-1
-17
(W)
-4
(W)
(G/Y) CN1-5
CN1-1
CN1-2
CN1-3
(Y)
(P)
(Y)
(Z)
(C)
(Y)
(P)
(Y)
(Z)
(C)
(P)
(Y)
(P)
CN453-1
CN453-2
CN453-3
CN453-4
CN453-5
CN453-7
CN453-8
CN453-9
CN453-10
CN453-11
CN453-12
CN453-13
[ 24]
[24] VM
[0] E-GND
[S] VE
[0] GND
Cassette
Bank Drive
PCB
[ 5] Scan2
[ 5] Scan3
[ 5] 2nd Lift
[ 5] 3rd Lift
[ 5] 2nd Relay
[ 24] 2nd Relay MC
[ 24] Lift Motor 2
[ 24] Lift Motor 3
[ 24] Feed MC2
[ 24] Feed MC3
[ 24] 2nd Pick-up
[ 24] 3rd Pick-up
Cassette
Bank
PCB
Cassette
Bank Drive
M
Technical Bulletin No. RTB-000
SUBJECT: DATE:
PAGE: 2 of
Technical Bulletin No. RTB-000
SUBJECT: DATE:
PAGE: 2 of
Technical Bulletin No. RTB-000
SUBJECT: DATE:
PAGE: 2 of
Technical Bulletin No. RTB-000
SUBJECT: DATE:
PAGE: 2 of
Technical Bulletin No. RTB-003
REVISED ON MAY 15
SUBJECT: LCT Side to Side Registration Adjustment DATE: Feb. 15, ’91
PAGE: 1 of 2
PREPARED BY: M. Ninomiya
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
[A]
[B]
2.5 cm
FROM: Copier Technical Support Sec.
MODEL: F-40
Revision of service manual
Information only
Other
[B]
[B]
[B]
Specification
Side registration: 0±2.0 mm
Preparation (Making a test sheet)
1. Fold an A4 (8 1/2 x 11) sheet exactly in half. Then draw a 2.5 cm (1 inch) line [A] on the
crease from an edge of the sheet.
Confirmation
1. Make a copy of the test sheet in platen mode from the LCT.
2. Fold the copy once with the fold running down the middle of the copy, then verify that
the vertical line at the top center of the test chart is on the fold or within 2.0 mm of the
fold.
3. If the side registration of the LCT is not within the specifications, follow the procedure
below:
Technical Bulletin No. RTB-003
SUBJECT: LCT Side to Side Registration Adjustment DATE: Feb. 15, ’91
PAGE: 2 of 2
Adjustment procedure
1. Remove the LCT right, front, and rear cover (2, 4 and 5 screws).
* Refer to steps 1 and 2 of LCT Unit Removal on p. 5-3 of the service manual.
2. Loosen 6 screws [B], Then slide the LCT unit to the front or rear to adjust the side
registration, then tighten the 6 screws.
3. Check the side registration again.
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