Ricoh F-40 User manual

Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION DATE: Dec.31 1990
PAGE: 1 of 10
PREPARED BY:M. Ninomiya
CHECKED BY: FROM: COPIER TECHNICAL SUPPORT SECTION
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
MODEL: F40
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
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:
290ms
ID Sensor Pattern For Image
(Selected Bias)
Development
Bias
Scanner On
Forward Scan
40ms

Technical Bulletin No. RTB-001
SUBJECT: F-40 SERVICE MANUAL MODIFICATION DATE: Dec.31 1990
PAGE: 2 of 10
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
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 DATE: Dec.31 1990
PAGE: 3 of 10
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
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 DATE: Dec.31 1990
PAGE: 4 of 10
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
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 DATE: Dec.31 1990
PAGE: 5 of 10
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.
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 DATE: Dec.31 1990
PAGE: 6 of 10
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
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 DATE: Dec.31 1990
PAGE: 7 of 10
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
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 DATE: Dec.31 1990
PAGE: 8 of 10
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
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 DATE: Dec.31 1990
PAGE: 9 of 10
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. . .
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 DATE: Dec.31 1990
PAGE: 10 of 10
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

Technical Bulletin No. RTB-002
SUBJECT: Point to Point Diagram Correction DATE: Jan. 15, ’91
PAGE: 1 of 2
PREPARED BY: M. Kitajima
CHECKED BY: FROM: Copier Technical Support Section
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
MODEL: F40
Please correct your point to point diagram as follows:
1) Location on Copier P to P: G4
INCORRECT CORRECT
NOTE: RA2 is closed.
2) Location on Copier P to P: C5
The signal description is "Fusing Exit Sensor".
Cleaning Heater
Drum Heater
Anticondensation Heater
(H) CN701-2
(H) CN672-2
(H) CN609-2
(W) T19
CN672-1 (B)
CN609-1 (B)
CN701-1 (B)
T20 Cleaning Heater
Drum Heater
Anticondensation Heater
(H) CN701-2
(H) CN672-2
(H) CN609-2
(W) T19
CN672-1 (B)
CN609-1 (B)
CN701-1 (B)
T20
RA2
CN102-B5 (R)
CN102-B4 (T)
CN101-A20 (H)
CN102-A13 (G)
CN101-B18 (G)
CN101-A18 (C)
CN655-2
CN687-2
CN688-2
CN655-2 (W)
CN687-2 (W)
CN688-2 (W)CN101-B7 (C)
Fusing
Cooling
Fan M
Toner
Supply
MC
Cleaning
SOL
VC [5]
C-GND [0]
Cleaning SOL [ 24]
Toner
Supply MC [ 24]
Fusing
Exit Sensor [ 5]
Fusing Cooling
Fan Motor [ 24]
Fusing
Unit Set [0]

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
CORRECT
Please add the cassette bank drive PCB and motor to your P to P.
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
-18
-10
-26
-27
-11
-12
-28
-14
-2
-3
-29
-30
-31
-19
-13
(T)
(G)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(C)
(C)
(H)
(M)
(G)
(G)
(G)
(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
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]
Main PCB CN464
CN1-4 (P)
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
-18
-10
-26
-27
-11
-12
-28
-14
-2
-3
-29
-30
-31
-19
-13
(T)
(G)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(C)
(C)
(H)
(M)
(G)
(G)
(G)
(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
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]
Main PCB CN464
A
B
C
-1
-17
-4
(B)
(W)
(W)
CN1-1
CN1-2
CN1-3
[24] VM
[0] E-GND
[S] VE
[ 24]
(G/Y) CN1-5 [0] GND
Cassette
Bank Drive
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
SUBJECT: LCT Side to Side Registration Adjustment DATE: Feb. 15, ’91
PAGE: 1 of 2
PREPARED BY: M. Ninomiya
CHECKED BY: FROM: Copier Technical Support Sec.
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
MODEL: F-40
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:
2.5 cm
[A]
REVISED ON MAY 15
[B]
[B]
[B]
[B]

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.

Technical Bulletin No. RTB-004
SUBJECT: BY PASS PAPER FEED SIDE REGISTRATION
ADJUSTMENT DATE: Feb. 15, 91
PAGE: 1 of 2
PREPARED BY: M. Ninomiya
CHECKED BY: FROM: Copier Technical Support Sec.
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
MODEL: F-40
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 chart in platen mode from the by-pass paper feed table.
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 by-pass paper feed table is not within the specifications, do
the following procedure.
REVISED ON MAY 15
[B]
2.5 cm
[A]

Technical Bulletin No. RTB-004
SUBJECT: BY PASS PAPER FEED SIDE REGISTRATION
ADJUSTMENT DATE: Feb. 15, 91
PAGE: 2 of 2
Adjustment procedure
1. Open the by-pass paper feed table.
2. Loosen the Allen screw [B] with an Allen wrench.
3. Slide the table to the front or rear to adjust the side registration.
4. Check the side registration again.

Technical Bulletin No. RTB-005
SUBJECT: Inverter Jam DATE: Feb. 28, ’91
PAGE: 1 of 4
PREPARED BY: M. Ninomiya
CHECKED BY: T. Ito FROM: Copier Technical Support Sec. Technical Support Dept.
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
MODEL: F40
1.SYMPTOM:
An "accordion" paper jam occurs at the inverter unit with the first sheet in duplex mode,
lighting the jam indicator "D" on the display panel.
The exact position where the leading edge of the paper stops is the third roller from the
front side of the guide plate.
REVISED ON DEC. 15, ’91
Exit Relay Roller
Inverter
Pressuure Roller
Inverter return
Roller
Inverter Return Roller
[ Front ]

Technical Bulletin No. RTB-005
SUBJECT: Inverter Jam DATE: Feb. 28, ’91
PAGE: 2 of 4
When this occurs:
After about 100 copies have been made and the inside of the copier has heated up, this
paper jam may occur.
The occurrence ratio differs depending on the temperature, humidity,and paper type.
Paper jamming is most likely to occur under the following conditions:
* at low temperature
* at low humidity
* with certain brands of paper (ex. Sabre-X)
* when sideways A4 copies are made
2. CAUSE:
A. The guide plate warps.
The open/shut guide plate warps and curves downward as shown as the result of heat
from the fusing unit.
Open / Shut Guide Plate
(molded plastic)
Open/Shut Guide Plate
Upper Guide Plate
Paper direction
when guide plate
is not warped
Paper direction
when guide plate is
warped

Technical Bulletin No. RTB-005
SUBJECT: Inverter Jam DATE: Feb. 28, ’91
PAGE: 3 of 4
B. The gap between the open/shut guide plate and the lower guide plate narrows.
C. Paper passing through the guide plates has crease marks at the point where the gap
is narrow.
D. This "stiff" paper proceeds strait ahead (due to its stiffness), and hits the inverter return
roller. Jams often occur at this point.
If the gap between the plates is even, paper jams do not occur.
NOTE: This paper jam occurs only when the first sheet is fed in duplex mode because of
the short interval betweeen pages. The preceding sheet of paper prevents the
following sheet from hitting the inverter return roller.
Open/Shut Guide Plate
Ribs
Lower Guide Plate
The gap narrows in the center.
NOTE: This is also done
(intentionally) at the exit rollers to
create stiffness in the paper sheet.
paper
Inverter Return Roller
Following Paper
Preceding paper
Inverter return Roller