Technical Bulletin Konica 7075

PRODUCT: 7075 NO.: 1 DATE: 2/18/00

SUBJECT: 7075 SERVICE MANUAL

Available on CD ROM

The next CD ROM service manual in our series is now available for release. In addition to theservice manual, the CD ROM also includes documentation on related peripherals, parts catalogs,user’s reference guide, and other pertinent materials. A second CD for the 7075 will be releasedwith the machine launch kits. This CD will contain all the documentation listed above andadditional sales materials.

The 7075 CD ROM can be ordered from the east coast Parts Distribution Center using standardordering procedures. This service manual is also available in print.

DEALERDESCRIPTION PART NO. UNIT COST*

7075 Service Manual (CD ROM) CD-7075 $ 25.007075 Service Manual (hard copy) CSM-7075 35.00

* Prices are subject to change without notice.

239-3 Corporate Publishing Services

PRODUCT: 7075 NO.: 2 DATE: 3/8/00

SUBJECT: SERVICE MANUAL UPDATE

The pages attached to this bulletin are replacements for the those already in the 7075 ServiceManual. Discard the old pages.

Pages that have been revised can be identified by the revision date at the bottom of the page.Changes that affect the technical content of the service manual are highlighted by a vertical linein the margin. Grammatical changes are not specifically identified.

Manual: 7075January 2000

PAGES CHANGES

8-7, 8 The replacement cycles for developer and the drum have increasedfrom 500,000 to every 1,000,000 copies. The main unit periodic checklist has been revised to reflect this.

8-14 The consumables chart has been revised to also reflect the change inperiodicity noted above, as well as to reflect an increase of the tonercartridge replacement cycle from 50,000 to every 55,000 copies.

After inserting the attached pages into the service manual, file this cover bulletin with the other7075 bulletins.


manuals4you.commanuals4you.com

8 - 7

MAINTENANCE

Setting powder

1

3

211

1

1

21

3

1

1

3

2

[3] Main Unit Periodic Inspection Items1. Periodic check (I) (Every 500,000 copies)

(1) Fixing cleaning web (counterresetting) 55VA-524*

(1) Separation claw replace-ment 55VA2919*

(1) Cleaning blade 55VA5601*(2) Fur brush 55VA-574*(3) Scattering prevention felt

55VA5568*(1) Charging control plate

55VA2508*(2) Charging wire cleaning unit

55VA-255*(3) Resin ring (φ2) 45AA2040*(1) Suction filter 55VA3108*

(1) Transfer/separation wire55VA2613*

(2) Transfer wire cleaning unit55VA-276*

(3) Separation wire cleaningunit 55VA-277*

(4) Transfer/separationvibration proof rubber

55VA2615*(5) Resin ring (φ2) 45AA2040*

Materials/toolsusedNO Classification Service item

Numberof partsreplaced

Implementation classification

Clea-ning

Inspe-ction

Lubri-cation

Replace-ment

Supply

1 Fixing unit

2 Drum carriage

3 Cleaner

4 Charging coronaunit

5 Developing unit

6 Transfer/separationcorona unit

Revised 2/2000

8 - 8

MAINTENANCE

(1) Paper feed roller (500-sheettray) 55VA-464*

(2) Feed roller (500-sheet tray)55VA-463*

(3) Double feed prevention roller(500-sheet tray) 55VA-463*

(4) Paper feed roller (1000-sheet tray) 55VA-484*

(5) Feed roller (1000-sheettray) 55VA-483*

(6) Double feed prevention roller(1000-sheet tray) 55VA-483*

(1) Paper feed roller (bypasstray) 55VA-464*

(2) Feed roller (bypass tray)55VA-463*

(3) Double feed prevention roller(bypass tray) 55VA-463*

(1) Drum replacement (counterresetting)

(1) Developer replacement(counter resetting)

(1) Fixing upper roller55VA-5304*

(2) Fixing lower roller assem-bly 55VA-528*

(3) Fixing claw (upper)55VA5321*

(4) Fixing claw (lower)25AA5329*

(5) Insulating sleeve (upper)45405339*

(6) Upper roller bearing45407504*

(7) Cleaning roller 55VA5386*(8) Heat roller cleaning




Clea-ning

Inspe-ction

Lubri-cation

Replace-ment

Supply

Actualreplacementcount: 300K feeds

Actualreplacementcount: 200K feeds

Setting powder

Roller cleaner

2

2

2

1

1

1

1

1

1

1

1

1

1

6

2

2

2

1

1 Tray

2 By-pass tray

3 Drum carriage

4 Developing unit

5 Fixing unit

2. Periodic check (II) (Every 1,000,000 copies)

Revised 2/2000


8 - 14

MAINTENANCE

[1] Consumables (Single unit supply)

COPY MATERIALS

Name

Toner cartridge 55,000

Developer 1,000,000

Drum 1,000,000

Durability/copies

[2] PM parts kit (500,000 copies/kit)

Charging wire 55VA2509* 2

Charging wire unit vibration 2proof rubber 25BA2501*

Charging control plate 55VA2508 1

Charging wire cleaning unit 55VA-255* 1

Cleaning blade 55VA5601* 2

Cleaning web 55VA-524* 1

Toner guide brush 55VA-579* 1

Separation claw 55VA2914* 3

Scattering prevention felt 55VA5568* 1

Suction filter 55VA3108* 1

Resin ring (ø2) 45AA2040* 4

Transfer/separation wire 55VA2613* 3

Transfer wire cleaning unit 55VA-276* 1set

Separation wire cleaning unit 1set55VA-277*

Transfer/separation vibration proof 3rubber 55VA2615*

Cleaning pad (10 pcs) 9

Polyethylene gloves 1 pair

Dust bag (rubber band) 1

Deve. collection sheet (rubber band) 1

Hand case for collection 1

Cotton swabs (4 pcs) 2

Name Quantity

[3] Maintenance kit500,000 copies/kitPM parts kit

Revised 2/2000

PRODUCT: 7075 NO.: 3 DATE: 4/28/00

SUBJECT: START UP PARTS LIST

Th e a t t a c h e d l i s t i s t h e r e c o m m e n d e d s t a r t u p p a r t s , t o o l s , a n d s u p p l i e s t o s u p p o r t o n e m a c h i n e

i n t h e f i e l d . U s e t h i s l i s t a s a m e t h o d t o m a i n t a i n t h e p r o p e r l e v e l o f r e p l a c e m e n t p a r t s i n s t o c k .

M u l t i p l y t h e p a r t s r e c o m m e n d e d i n t h e l i s t b y t h e q u a n t i t y o f m a c h i n e s p l a c e d i n t h e f i e l d t o

d e t e r m i n e y o u r o v e r a l l s t o c k i n g l e v e l s . P a r t s a n d t o o l s c a n b e o r d e r e d f r o m t h e P a r t s D i s t r i b u t i o n

C e n t e r u s i n g s t a n d a r d o r d e r i n g p r o c e d u r e s . S u p p l i e s c a n b e o r d e r e d f r o m t h e D e a l e r O r d e r i n g

P r o c e s s i n g C e n t e r .

2 3 9 - 5 C o r p o r a t e P u b l i s h i n g S e r v i c e s


7075 START UP PARTS LISTSUPPLIESPCUA NUMBER DESCRIPTION QUANTITY RECOMMENDED REPLACEMENT

INTERVALDEALER COST

($)950-638 Toner 1 - 56.50

950-629 PM kit (contains parts below with *) 1 500K 285.00950-640 Developer 1 1,000K 240.00950-641 Drum 1 1,000K 440.00

PARTSPART NUMBER DESCRIPTION QUANTITY RECOMMENDED REPLACEMENT

INTERVALDEALER COST

($)55VA25090 Charging wire* 2 250K 12.48

55VA25011 Charging wire vibration rubber* 2 250K 2.0155VA25080 Charging control plate* 1 500K 82.31

55VA-2550 Charging wire cleaning unit* 1 500K 6.4855VA56010 Cleaning blade* 2 500K 20.2855VA-5240 Cleaning web* 1 500K 92.76

55VA-5740 Toner guide brush* 1 500K 124.8055VA29140 Separation claw* 3 500K 1.4155VA55680 Scatter prevention felt* 1 500K .78

55VA31080 Suction filter* 1 500K 21.1545AA20400 Resin ring* 4 500K 1.14

55VA26130 Transfer/separation wire* 3 500K 8.0055VA-2760 Transfer wire cleaning unit* 1 set 500K 19.2655VA-2770 Separation wire cleaning unit* 1 set 500K 19.26

55VA26150 Transfer/separation wire vibration rubber* 3 500K 1.3055VA-4640

"Paper feed roller (500 sheet tray)Feed roller (bypass tray)

21

300K actual200K actual

11.67

55VA-4630"""

Feed roller (500 sheet tray)Double feed prevention roller (500 sheet tray)Paper feed roller (bypass tray)Double feed prevention roller (bypass tray)

2211

300K actual300K actual200K actual200K actual

12.21"""

55VA-4840"

Paper feed roller (1000 sheet tray)Paper feed roller (LT-401)

11


16.21"

55VA53040 Upper fixing roller 1 1,000K 321.31

55VA-5280 Lower fixing roller 1 1,000K 347.9555VA53210 Upper fixing claw (set of 6) 1 1,000K 40.01

25AA53290 Lower fixing claw (set of 6) 1 1,000K 50.97454053391 Upper insulating sleeve 2 1,000K 13.48454075040 Upper roller bearing 2 1,000K 24.30

55VA53860 Cleaning roller 1 1,000K 43.4213GA46040 Paper feed roller (DF-313) 1 200K actual 58.6313GA46050 Separation roller (DF-313) 1 200K actual 37.06

13GA46060 Double feed prevention roller (DF-313) 1 200K actual 24.9413GA46010 Separation assist roller (DF-313) 1 200K actual 40.17

129U42660 Stapler unit (FS-108) 2 200K actual 437.0855VA-4830

"""

Feed roller (1000 sheet tray)Double feed prevention roller (1000 sheet tray)Feed roller (LT-401)Double feed roller (LT-401)

1111


8.45"""

50BA-5750 Feed roller (PI-108) 1 100K actual 13.2213FG-4060 Double feed prevention roller 1 100K actual 13.89

* Included with PM kit.

1

7075 START UP PARTS LISTTOOLSPART NUMBER DESCRIPTION QUANTITY DEALER COST ($)

55VAJG011 Temperature sensor adjusting jig (B) 1 3.2955VAJG031 Thermostat adjusting jig (A) 1 3.2955VAJG041 Thermostat adjusting jig (B) 1 3.29

7050K0020 Optics position adjusting jig 2 51.3900M6-2-00 Door switch cheater (set of 2) 1 13.09

00VD-5000 Pyramid test chart 1 7.9200VC-2-00 Drum cover 1 31.42

120A10520 PS jig Set of 2 42.37120A97110 Adjusting chart 1 14.91

120A97120 White sheet 1 9.67129XJG011 Stapler positioning jig (FS-108) 1 17.49

2manuals4you.commanuals4you.com

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PRODUCT: 7075 NO.: 4 DATE: 2/7/01

SUBJECT: MOUNTING PLATE INSTALLATION FAILURE

On some model 7075s, the main body mountingplate/lower used to install a finisher cannot be se-cured to the main body because the screw holes arenot threaded. A self tapping screw is available to tapthe screw holes and allow normal installation of themounting plate.

PARTS

The self tapping screws can be obtained from the Parts Distribution Center using standardordering procedures.


Self tapping screw 00Z284101 $ .12



Screws

Main body mounting plate/lower

PRODUCT: 7075/FORCE 75 NO.: 5 DATE: 3/19/01

SUBJECT: ADDITIONAL ADU SHIPPING MATERIAL

Increase Stability of ADU During Shipping

To further stabil ize the ADU unit during shipping, a bracket and foam padding have been addedto prevent vertical movement of the unit while being transported. Originally, only two platessecured the ADU primarily along its horizontal plane.

Modif ied Machines The additional ADU shipping material has been factory installed in machines starting with s erialnumbers 55VE02558 (7075) and 55ZE00193 (FORCE 75) . These units can be ident i f ied bydesignator "A" on the shipping carton label . Existing inventory has also been reinforced with theadditional shipping material . These units can be identif ied by a "green sticker" applied to thelabel of the shipping carton.

Removing the ADU Shipping Materia l

Note: Save the ADU shipping material (1 bracket, 2 plates, and foam pad) for future use (theseitems are not available in the parts system). To prevent damage, it is highly recom -mended that these items be installed prior to each machine transport.

It is important to remove the ADU shipping material in the fol lowing order:

1 . Withdraw tray 1 while pressing the lock lever mounted on theleft side of the tray (see arrow 1).

2 . Remove the screw (see arrow 2) of the f irst bracket (red) to beremoved.

3 . Remove the bracket by first sliding it to the right (see arrow 3),then rotating it to the rear (see arrow 4).

7075/FORCE 75 Page 1 of 3 Bulletin #5 (3/19/01)


4. Reinsert the screw removed in step 2 back to its originallocation (see arrow 5).

5. Return tray 1 to its original position.

6. Remove the remaining 2 ADU plates (red) located on the rightand left side of the ADU unit (see arrows 6 & 7) .

7. Remove the foam pad by: (1) turning the ADU release leverto the right while releasing the ADU lock cover (see arrows 8& 9) , (2) withdrawing the ADU unit while pressing on thefoam pad (see arrows 10 & 11), and (3) peeling off the adhesivetape to remove the pad.

Bulletin #5 (3/19/01) Page 2 of 3 7075/FORCE 75

Instal l ing the ADU Shipping Material

1 . Withdraw the ADU unit by turning the ADU release lever tothe right while releasing the ADU lock cover (see step 7 onthe previous page).

2 . Install the foam pad and tape it into position (see arrow 1).

3 . Push the ADU unit back to it original position and secure itby turning the ADU release lever. Install the ADU plates (seearrows 2 & 3).

4 . Withdraw tray 1 while pressing the lock lever mounted on theleft side of the tray (see arrow 4).

5 . Remove the screw (see arrow 5) where the bracket (red) is tobe installed.

6 . Install the bracket by: (1) positioning the lower portion of thebracket behind the frame and resting it on the edge of theframe behind it, (2) rotating the bracket to the front (see arrow6), (3) sliding it to the left (see arrow 7), and (4) securing itwith the screw removed in step 5 (see arrow 8).

7 . Close the tray.

Screw

239-7 Corporate Publ ishing Services

7075/FORCE 75 Page 3 of 3 Bulletin #5 (3/19/01)



SUBJECT: SERVICE MANUAL UPDATE

The 7075/FORCE 75 Service Manual has been revised to include the updates annotated below.Pages that have been revised can be identif ied by the revision date at the bottom of the page.Changes that affect the technical content of the service manual are highlighted by a vertical l inein the margin. Grammatical changes are not specif ically identif ied.

Service Manual Available On WebsiteThe revised 7075/FORCE 75 Service Manual can be downloaded from the secured area of Konica ’swebsite at :

ht tp ://www.konicabt . com/konicode/PubBrowser/konidoc/TECH/TMANUALS/7075sm.pdf

Manual : 7075/FORCE 75September, 2000

PAGES CHANGES

6-8, 9 The replacement cycles for developer and the drum have increased from500,000 to every 1,000,000 copies. The main unit periodic check list hasbeen revised to reflect this.

6-19 The consumables chart has been revised to also reflect the change inperiodicity noted above, as well as to reflect an increase of the tonercartridge replacement cycle from 50,000 to every 55,000 copies.

Insert the following revised pages into the service manual. File this cover bulletin with th e other7075/FORCE 75 bul let ins.

239-10 Corporate Publ ishing Services

6 - 7

SERVICE

7. TU [TU-108] (Every 250,000 copies)




Clea-ning

Inspe-ction

Lubri-cation

Replace-ment

Supply

Drum cleaner/cleaning padDrum cleaner/cleaning pad

Plus guard No.2

Drum cleaner/cleaning pad

1 Conveyancesection

2 Trimmer section

3 Stacker section

4 Drive section5 Final check

(1) Conveyance rollers(2) Conveyance belts(1) Upper knife(2) Lower knife(3) Paper scraps box and its

area *1(1) Pusher section(2) Stacker section(1) Conveyance drive section(1) Paper feeding check(2) Exterior cleaning

*1: Check and clean the remaining scraps.

( )( )


6 - 8

SERVICE

Setting powder

1

3

2

1

1

1

2

2

1

3

1

1

3

2

[3] Main Unit Periodic Inspection Items

1. Periodic check (I) (Every 500,000 copies)

(1) Fixing cleaning web

(25 mode counter resetting)

55VA-524*

(1) Separation claw replace-

ment 55VA2919*

(1) Cleaning blade 55VA5601*

(36 mode blade setting mode)

(2) Fur brush 55VA-574*

(3) Scattering prevention felt

55VA5568*

(1) Charging control plate

55VA2508*

(2) Charging wire cleaning unit

55VA-255*

(3) Resin ring (φ2) 45AA2040*

(1) Suction filter 55VA3108*

(1) Transfer/separation wire

55VA2613*

(2) Transfer wire cleaning unit

55VA-276*

(3) Separation wire cleaning

unit 55VA-277*

(4) Transfer/separation

vibration proof rubber

55VA2615*

(5) Resin ring (φ2) 45AA2040*

Materials/tools

usedNO Classification Service item

Number

of parts

replaced


Clea-

ning

Inspe-

ction

Lubri-

cation

Replace-

mentSupply

1 Fixing unit

2 Drum carriage

3 Cleaner

4 Charging corona

unit

5 Developing unit

6 Transfer/

separation

corona unit

Revised 4/01

6 - 9

SERVICE

(1) Paper feed roller (500-sheet

tray) 55VA-464*

(2) Feed roller (500-sheet tray)

55VA-463*

(3) Double feed prevention roller

(500-sheet tray) 55VA-463*

(4) Paper feed roller (1000-

sheet tray) 55VA-484*

(5) Feed roller (1000-sheet

tray) 55VA-483*


(1000-sheet tray) 55VA-483*

(1) Paper feed roller (bypass

tray) 55VA-464*

(2) Feed roller (bypass tray)

55VA-463*


(bypass tray) 55VA-463*

(1) Drum replacement


(1) Developer replacement


(1) Fixing upper roller

55VB5304*

(2) Fixing lower roller assembly

55VA-528*

(3) Fixing claw (upper)

55VA5321*

(4) Fixing claw (lower)

25AA5329*

(5) Insulating sleeve (upper)

45405339*

(6) Upper roller bearing

45407504*

(7) Cleaning roller 55VA5386*

(8) Heat roller cleaning

Materials/tools

usedNO Classification Service item

Number

of parts

replaced


Clea-

ning

Inspe-

ction

Lubri-

cation

Replace-

mentSupply

Actual replacement

count: 300K feeds

Actual replacement

count: 500K feeds

Actual replacement

count: 200K feeds

Setting powder

Roller cleaner

2

2

2

1

1

1

1

1

1

1

1

1

1

6

2

2

2

1

1 Tray

2 By-pass tray

3 Drum carriage

4 Developing unit

5 Fixing unit

2. Periodic check (II) (Every 1,000,000 copies)

Revised 4/01


6 - 10

SERVICE

3. Periodic check (III) (Every 3,000,000 copies)

(1) Drum temperature sensor55VA-952*

(1) Transfer/separation coronaunit 55VA-270*

(1) Registration roller55VA4603*

(2) Registration bearing55VA7552*

(3) Registration loop roller55VA-068*

(4) Registration clutch55VA8201*

(1) Paper reverse/exit roller 155VA4740*

(1) Insulating sleeve (heatingroller) 45405339*

(2) Heating roller bearing26AA5316*

(3) Temperature sensor (upperroller fault) 55VA8804*

(4) Temperature sensor (heatingroller fault) 55VA8806*

(5) Fixing heating roller55VA5307*

(6) Exit actuator 55VA5383*(7) Heater lamp L2

55VF8302*(8) Heater lamp L3

55VF8303*(9) Heater lamp L4

55VF8304*(10) Fixing web driving motor 1

55VA8017*(1) Ozone filter 1 55FA7301*(2) Ozone filter 2 55VA1107*(1) Toner supply sleeve 1

55VA-334*(2) Toner supply sleeve 2

55VA-335*

1 Drum

2 Transfer/separationcorona unit

3 Registration

4 ADU

5 Fixing

6 Main body

7 Toner supply




Clea-ning

Inspe-ction

Lubri-cation

Replace-ment

Supply

1

1

1

2

1

1

1

2

2

1

1

1

11

1

1

1

211

1

4. Periodic check (IV) (Every 4,500,000 copies)

(1) Feed clutch 55VA8201*(2) 1st paper feed clutch

55VA8201*

1 Tray




Clea-ning

Inspe-ction

Lubri-cation

Replace-ment

Supply

Actual replacementcount: 3,000Kfeeds

33

6 - 19

SERVICE

[1] Consumables (Single unit supply)

COPY MATERIALS

Name

Toner cartridge 55,000

Developer 1,000,000

Drum 1,000,000

Durability/copies

[2] PM parts kit (500,000 copies/kit)

Charging wire 55VA2509* 2

Charging wire unit vibration 2

proof rubber 25BA2501*

Charging control plate 55VA2508* 1

Charging wire cleaning unit 55VA-255* 2

Cleaning blade 55VA5601* 2

Cleaning web 55VA-524* 1

Toner guide brush 55VA-574* 1

Separation claw 55VA2919* 3

Scattering prevention felt 55VA5568* 1

Suction filter 55VA3108* 1

Resin ring (ø2) 45AA2040* 4

Transfer/separation wire 55VA2613* 3

Transfer wire cleaning unit 55VA-276* 1set

Separation wire cleaning unit 1set

55VA-277*

Transfer/separation vibration proof 3

rubber 55VA2615*

Cleaning pad (10 pcs) 9

Polyethylene gloves 1 pair

Dust bag (rubber band) 1

Deve. collection sheet (rubber band) 1

Hand case for collection 1

Cotton swabs (4 pcs) 2

Name Quantity

[3] Maintenance kit500,000 copies/kit

PM parts kit + Developer (1 pc)

Revised 4/01


6 - 20

SERVICE

SERVICE MATERIAL LISTMaterial No. Material Name Appearance Remarks

000V-16-0 Drum cleaner

000V-17-0 Roller cleaner

00GR00020 Plus guard No.2

000V-19-0 Setting powder

000V-18-0 Cleaning pad

200 ml

200 ml

25 g

25 g

10 pcs1 pack

PRODUCT: 7075/FORCE 75 NO.: 7A DATE: 8/27/01

SUBJECT: FUSING DRIVE MECHANISM IMPROVEMENT

Design Change to PreventBreakage -- FOC Program

While subjected to loads when driving the upper fusing roller, the tabbed portion of fusing drivinggear/2 may break, making it impossible to drive (rotate) the upper fusing roller. Under thiscondition, jam J31-01 (2nd paper feed and conveyance jam) may occur.

To reduce the load placed upon fusing driving gear/2 and the likelihood of breakage, the drivemechanism of the upper fusing roller has been modified. The fusing driving gear and fusingdriving gear/2 are now designed to interlock with each other, enabling both gears to share theload when driving the upper fusing roller. Refer to the illustrations below for clarification.

This modification has been factory installed beginning with serial numbers 55VE02558 (7075)and 55ZE00193 (FORCE 75) . For machines below these serial numbers, i t is recommended thatthe old style gears be replaced. This is not a mandatory modification.

Fusing driving gear

Fusing driving gear/2

Upper fusing roller

OLD

NEWFusing driving gear

Fusing driving gear/2

Tab

This bulletin is being revised to announce a free-of-charge program for this modification. File thiscopy; discard bulletin #7 dated 5/14/01.

7075/FORCE 75 Page 1 of 3 Bulletin #7A (8/27/01)


PARTS

Through February 28, 2002 , these parts can be obtained 20% free of charge for units belowserial numbers 55VE02558 (7075) and 55ZE00193 (FORCE 75) from the Parts DistributionCenter using the special ordering procedure in this bulletin. The Parts Center will charge for allparts ordered using standard ordering procedures.

FOC programs are based on statistical percentages of machines that are likely to be affected bycertain modification programs. For percentage programs, the quantity of parts shipped usuallyis sufficient to modify all of the machines that need the change. However, if more than thestatistical percentage of machines serviced by any one branch or dealer require a modification,then a FTR (Field Technical Report, Form TP-2) has been established for that purpose. Use theFTR only i f additional parts are needed. (Purchase the necessary new parts and return the oldparts with the properly completed FTR form to receive credit.)

Note: The new redesigned gears are not interchangeable with the old style gears. The new gearsmust be replaced as a set.


Gear, fusing driving 55VA77801FOC $ 0.0055VA77801 26.12

Gear/2, fusing driving 55VA77831FOC 0.0055VA77831 38.10


Bulletin #7A (8/27/01) Page 2 of 3 7075/FORCE 75

SPECIAL ORDERING PROCEDURE

Order form B --439 must be completed as instructed below for entitlement to this free-of-chargeprogram. The Parts Center will charge for all parts ordered using standard ordering procedures.This free-of-charge program expires February 28, 2002 . Orders will be filled at a 20% rate underthis program.

1. Use a separate Form B--439 when ordering these parts. Do not mix other parts with this order.

2. Complete the B--439 as instructed below and forward it to the east coast Parts DistributionCenter, or fax 1-800-456-6422, ext. 2424. Do not use the on-line terminal ordering procedure.

A. Enter the special program name as indicated above.

B . Enter your ID number.

C . Enter the date that you submit this order.

D . Enter your branch/company name and complete shipping address.

E . Enter the part number(s) in the bulletin.

F . Enter the total number of parts required.

G . List the serial numbers of the machines which require the parts. (The number of serialnumbers must equal the total quantity required for each machine listed for item F.)

H . Sign the form.

7075, FORCE 75 FUSING DRIVEMECHANISM PROGRAM

55VA77801FOC55VA77831FOC


7075/FORCE 75 Page 3 of 3 Bulletin #7A (8/27/01)



SUBJECT: PAPER PATH MODIFICATION

Drum Cartridge Assembly

When the duplex mode is selected, the paperis cycled through the ADU to reverse the sheetfor copying on the 2nd side. During this proc-ess, the leading edge of the paper can curl. Innormal situations, the curled edge presents noproblem; however, when copying special sizedpaper (larger than 11 x 17), the curled edgemay catch on the support molding of the sepa-ration guide plate or the screw head of therocking gear assembly (see photo). This cancause the corners of the paper to become foldedor can lead to J31-2 paper jams (conveyance).

The drum cartridge assembly has been modi-fied to remove these obstructions from thepaper path. (The support molding of the sepa-ration guide plate has been removed and thescrew of the rocking gear assembly has beenrepositioned to the upper side of the assem -bly.)

PARTS

The drum cartridge assembly can be obtained from the Parts Distribution Center using standardordering procedures. The new and old assemblies are interchangeable.


Drum cartridge assembly 55VA--2002 $ 714.76


Drum

View before modification as seen from underside of drum cartridge assembly



SUBJECT: TONER BUILD-UP ON LOWER FUSING ROLLER

The follow ing checklist provides solutions for the problem of toner build-up on the lower fusingroller of models 7075 and Force 75.

P lease visit Kon ica’s web site (www.konicabt.com ) and search the N S S G Web Support knowledgebase of solutions for additional inform a tion.

CHECKLIST

ITEMS TOCHECK PROBLEM CORRECTION

Lower roller cleaningroller (p/n 55VA53860)

High volume of same type of original:letterhead, form letters, or originalswith high density coverage.

Vary types of originals that are used or split the jobs. Inspect and replace cleaning roller as required.

Lower roller bearings worn causingreduced pressure between rollers.

Check lower fuser rollers and bearings for wear or damage and replace as required.

Incorrect mounting or binding of lowerroller cleaning roller

Check lower cleaning roller for binding or deformed mounts and replace as required.

Upper fusing roller(p/n 55VA53041)Lower fusing roller(p/n 55VA-5281)

Fusing roller coating is worn. Check the parts counter for parts that are pending or have exceededreplacement interval. Check for proper upper roller web advance operation.

Upper or lower fusing roller operationtemperature is incorrect.

Check and repair/replace the following as required:1. Adjustment of sensors using proper gauges. 2. Worn bearings that can change the adjustment setting.3. Fixing unit frame for damage/distortion.4. Improper fixing unit installation causing poor connector contact.5. Low input power at receptacle.6. 25 mode, 8-0 to 8-5, for correct settings.

Cleaning web(p/n 55VA-5240)

Web does not advance. Check gear (p/n 55VA77861) & web drive motor (p/n 55VA80170)for damage and proper operation. Replacement period for both partsis 3,000,000 copies.

Overtoning High concentration of toner. Check for error in all SC 29-xx codes in data collection log andcorrect any found. If current values are not to specification, reset tostandard values manually and perform any adjustments required.Turn off auto drum potential sensor in 25 mode, 6-7, to verify ifsensor is causing problem.

239-11 Corporate Publishing Servicesmanuals4you.commanuals4you.com


SUBJECT: START UP PARTS LIST

Model FORCE 75 Only

The attached list is the recom m ended start up parts, tools, and supplies to support one m a chinein the field. Use this list as a method to m a intain the proper level of replacement parts in stock.M u ltiply the parts recom m ended in the l ist by the quantity of m a chines placed in the field todeterm ine your overall stocking levels. Parts and tools can be ordered from the Parts D istributionCenter using standard ordering procedures. Supplies can be ordered from the Dealer OrderingProcessing Center.


FORCE 75 START UP PARTS LISTSUPPLIESPCUA NUMBER DESCRIPTION QUANTITY RECOMMENDED REPLACEMENT

INTERVALDEALER COST

($)

950638 Toner 1 - 56.50950629 PM kit (contains parts below with *) 1 500K 285.00950640 Developer 1 1,000K 240.00950641 Drum 1 1,000K 440.00

PARTSPART NUMBER DESCRIPTION QUANTITY RECOMMENDED REPLACEMENT

INTERVALDEALER COST

($)55VA25090 Charging wire* 2 500K 12.48

25BA25010 Charging sheet (1)* 2 500K 2.0155VA25080 Charging control plate* 1 500K 82.3155VA-2550 Charging wire cleaning unit* 1 500K 5.3355VA56010 Cleaning blade* 2 500K 20.28

55VA-5240 Cleaning web* 1 500K 66.2355VA-5741 Toner guide brush* 1 500K 124.8055VA29140 Separation claw* 3 500K 1.4155VA55680 Scatter prevention felt* 1 500K .78

55VA31080 Suction filter* 1 500K 21.1545AA20400 Resin ring* 4 500K 1.1455VA26130 Transfer/separation wire* 3 500K 8.0055VA-2760 Transfer wire cleaning unit* 1 set 500K 14.12

55VA-2771 Separation wire cleaning unit* 1 set 500K 16.0455VA26150 Transfer/separation wire vibration rubber* 3 500K 1.3055VA-4640

"Paper feed roller (500 sheet tray)Feed roller (bypass tray)

21


11.67"

55VA-4630"""

Feed roller (500 sheet tray)Double feed prevention roller (500 sheet tray)Paper feed roller (bypass tray)Double feed prevention roller (bypass tray)

2211


12.21"""

55VA-4840"

Paper feed roller (1000 sheet tray)Paper feed roller (LT-401)

11


16.21"

55VA53041 Upper fixing roller 1 1,000K 236.5955VA-5281 Lower fixing roller 1 1,000K 293.8155VA53210 Upper fixing claw (set of 6) 1 1,000K 39.6825AA53290 Lower fixing claw (set of 6) 1 1,000K 50.97

454053391 Upper insulating sleeve 2 1,000K 13.48454075040 Upper roller bearing 2 1,000K 24.3055VA53860 Cleaning roller 1 1,000K 38.50129U42660 Stapler unit (FS-108) 2 200K actual 437.08

55VA-4830"""

Feed roller (1000 sheet tray)Double feed prevention roller (1000 sheet tray)Feed roller (LT-401)Double feed roller (LT-401)

1111


8.45"""

50BA-5750 Feed roller (PI-108) 1 100K actual 13.2213FG-4060 Double feed prevention roller 1 100K actual 14.86

* Included with PM kit.

TOOLSPART NUMBER DESCRIPTION QUANTITY DEALER COST ($)

55VAJG011 Temperature sensor adjusting jig (B) 1 3.2955VAJG031 Thermostat adjusting jig (A) 1 3.2955VAJG041 Thermostat adjusting jig (B) 1 3.29

7050K0020 Optics position adjusting jig 2 51.3900M6-2-00 Door switch cheater (set of 2) 1 13.09

00VC-2-00 Drum cover 1 31.42

120A10520 PS jig Set of 2 42.37

129XJG011 Stapler positioning jig (FS-108) 1 17.49


SUBJECT: FIRST PAPER FEED JAMMING PREVENTIONMODIFICATION

Model 7075 Only

A m o d ification k it is available to correct first paper feed jam m ing in the 500- and 1000-sheetpaper trays. Paper detection failures can result in F18-10 (tray 1) , F18-20 (tray 2), and F18-30(tray 3) service codes. This is caused by the movement of the paper guide/ left in each tray fromits proper position w h ich leads to incorrect paper placement in the tray. The kit has guide stopperplates to better secure the paper guide and longer actuators to ensure proper upper l im itdetection. These parts have been installed in m a chines during production beginning with serialnumber 55VE02558 ; machines below this serial number may require the kit . This is not amandatory modif ication.

Paper guide/left

Guide stopper plate

7075, FORCE 75 Page 1 of 4 Bulletin #11 (9/10/01)

PARTS

Through March 1 , 2002 , these kits can be obtained from the east coast Parts Distribution Centerfree of charge for 100% of the m a chines noted above, using the special ordering procedure in thisbulletin . The Parts Center w ill charge for al l parts ordered using standard ordering procedures.

DEALERDESCRIPTION QUANTITY PART NO. UNIT COST*

Modification kit (special) 1 55VA-K030FOC N/CModification kit (standard) 1 55VA-K030 $ 18.25Screw (M4X6) # 18 00Z194061 .15

Kit contents:Actuator (500 sheet tray) 2 55VA40340 $ 3.32Actuator (1000 sheet tray) 1 55VA41340 3.32Guide stopper plate 3 55VA40740 3.84Installation sheet 1 N/A N/C

* Prices are subject to change without notice.# Screws are not included with kit. Six (6) screws will be needed to install each guide stopperplate (p/n 55VA40740); a total of 18 will be needed for each kit.

Bulletin #11 (9/10/01) Page 2 of 4 7075, FORCE 75manuals4you.commanuals4you.com


Order form B --439 must be com p leted as instructed below for entitlement to this free-of-chargeprogram . The Parts Center wil l charge for al l kits ordered using standard ordering procedures.This free-of-charge program expires March 1 , 2002 . Orders w ill be filled at a 100% rateunder this program .

1 . Use a separate Form B --439 when ordering these kits. Do not m ix other parts w ith this order.

2 . Complete the B--439 as instructed below and forward it to the east coast Parts D istributionCenter, or fax it to 1-800-456-6422, ext. 2424. Do not use the on-line term inal orderingprocedure.

A . Enter the special program name as indicated above.


C . Enter the date that you subm it this order.

D . Enter your branch/company name and com p lete shipping address.

E . Enter the part number(s) listed in this bulletin.

F . Enter the total number of kits required.

G . L ist the serial numbers of the machines w h ich require the parts. (The number of serialnumbers m u st equal the total quantity listed for item F .)

H . S ign the form .

1ST PAPER FEED JAMMING

PREVENTION PROGRAM

7075, FORCE 75 Page 3 of 4 Bulletin #11 (9/10/01)

INSTALLATION PROCEDURES

Acutators

Use the actuators in the kit to replace the upper l im it actuators in each of the trays.

Stopper Plate

Each modification kit has instructions for installing the stopper plate.


Bulletin #11 (9/10/01) Page 4 of 4 7075, FORCE 75manuals4you.commanuals4you.com


SUBJECT: FUSING DRIVE GEAR/C

Modified to Prevent Breakage

The slots of fusing drive gear/C, into which the drive pin (pin/A) is inserted, have been lengthenedto evenly distribute the driving loads over a larger area. With the older gear, a smaller area wassubjected to these same loads, increasing the stress to that area and increasing the likelihood ofgear breakage. Pin/A has also been lengthened ( 16 ⇒ 34mm) to accommodate this change. Referto the illustration.

This modification has been factory installed beginning with serial numbers 55VE01841 (7075)and 55ZE00073 (FORCE 75) . This is not a mandatory modification. For machines below theserial number, replace gear/C and pin/A if breakage occurs.

Fusing drive pin/AFusing drive gear/C

Drive Unit

Fusing drive gear/C

Fusing drive gear/C

NewOld

Shorter slot Longer slots

7075/FORCE 75 Page 1 of 2 Bulletin # 12 (9/12/01)

Please visit Konica’s web site (www.konicabt.com) and search the Konica NSSG Web Supportfor additional information and solutions.

PARTS

Fusing drive gear/C and pin/A can be obtained from the Parts Distribution Center using standardordering procedures. Gear/C and pin/A must be installed as a set.


Gear/C, fusing drive 55VA77071 $ 7.78Pin/A, fusing drive 55VA15190 2.64



Bulletin # 12 (9/12/01) Page 2 of 2 7075/FORCE 75



SUBJECT: FUSING CLEANING GEAR/3

Precaution/Improvement to Prevent Breakage

The c leaning web assem b ly drive mechanism impartsdrive to the web assem b ly via a coupling devise (pin) w h ichengages fusing cleaning gear/3. The pin’s position w ithrespect to gear/3 can make the gear either more or lessprone to breakage.

Re ferring to the illustration, V iew A , gear/3 has two setsof slots into w h ich the pin can be inserted; also note thew ide and narrow tabs. Now referring to View B, note thedirection of rotation of gear/3. If w h ile replacing the webassem b ly the pin is inserted into the slots show n , thenarrower support tabs of the gear are subjected to the forceof the pin, m a k ing gear breakage more likely. O n the otherhand , if the pin is inserted into the slots show n in View C,the wider, more durable tabs are now sub jected to the pin’sforce, significantly reducing the l ikelihood of breakage.

In conjunction with the correct pin positioning, fusingcleaning gear/3 has been improved to increase its durabil -ity. The im p roved gear, which is now greenish in color, isslightly thicker and made o f a polyam ide-im ide (P A I) m a-terial . This gear (and correct pin positioning) has beenfactory installed in machines beginning with serial num -ber 55VE01095. Al l FORCE 75 machines include thism o d ification .

This is not a mandatory modification. To m inim ize down-time and gear replacement, it is recom m ended that thepin position be checked, and corrected if necessaryin accordance w ith V iew C , during the next servicecall or PM .

View A

Two sets of slots

Narrow tab (4)

Wide tab (2)

Pin/narrowtab contact(Other endobscured fromview)

View B

Gear/3

Pin

Narrow tab

Wrong Way

View C

Pin

Wide tab

Wide tab

Narrow tab

Gear/3

Right Way

Pin/wide tabcontact

Pin/wide tabcontact

7075/FORCE 75 Page 1 of 2 Bulletin # 13 (9/18/01)

P lease visit Kon ica’s web site (www.konicabt.com ) and search the Konica N S S G Web Supportfor additional information and solutions.

PARTS

Fusing cleaning gear/3 can be obtained from the Parts Distribution Center using standardordering procedures. The old and new gear are interchangeable.


Fusing cleaning gear/3 55VA77861 $ 10.62

* Prices are subject to change w ithout notice.


Bulletin # 13 (9/18/01) Page 2 of 2 7075/FORCE 75


TECHNICALBULLETIN

A copy of this bulletin must be given to every technician who services this model.

PRODUCT: 7075/FORCE 75/7085 NO: 14 DATE: 5/8/02

SUBJECT: DEVELOPER LEAKAGEDeveloping Unit Credit Program – Models 7075 & FORCE 75 Only

Symptom:Loose developer which has leaked through the G-Seals at the rear of the Developer unit. Examination of the drivegear discloses excessive wear of the gear teeth and of the shaft inside the bushing. The bushing interior is alsocontaminated with hardened developer.

Cause:Breakdown of the G-Seal material allows developer to leak and contaminate the Developer Unit drive section.

Action and Result:Developing units are now equipped with more durable seal material.

Applicability:This credit program applies to all 7075 and FORCE 75 units as specified below.

Credit Program:Upon verification, Konica’s Engineering Department will offer credit equivalent to the amount of lost yield for eachout-of-warranty developing unit replaced as a result of the aforementioned symptom.

NOTE: This credit program is only in effect until March 31, 2003.

Verification will require that the attached forms be completed and provided to the Engineering Department,accompanied by the individual engine service history and order information for each replacement part that wasused. Fax these documents to:

Konica Business Technologies, Inc.Engineering DepartmentAttn: Felix BurgenFax No.: (860) 902-7610

Note: This program will provide compensation for the premature failure of out-of-warranty developing units (p/n:55VA-3000/1/2) and does not require that failed parts be returned for evaluation. However, the failed partsshould be retained until credit is provided in case Konica requests that they be returned for furtherinspection.


7075/FORCE 75 DEVELOPING UNIT CREDIT PROGRAM

THIS PROGRAM PROVIDES COMPENSATION FOR THE PREMATURE FAILURE OFOUT-OF-WARRANTY DEVELOPING UNITS (P/N: 55VA-3000/1/2). CREDIT WILL BE BASEDUPON THE ACTUAL YIELD ACHIEVED BY A DEVELOPING UNIT AT THE TIME OF ITSREPLACEMENT VERSUS THE SPECIFIED LIFE OF 6 MILLION COPIES.

FOR EXAMPLE:

IF A DEVELOPING IS VERIFIED AS FAILED AFTER 3.0 MILLION COPIES, CREDITWILL BE ISSUED IN AN AMOUNT BASED UPON BRANCH / DEALER COST OF THEPART TO COMPENSATE FOR THE 50% LOST PORTION OF THE YIELD.

BRANCH NAME: ________________________________ ID #: ___________________________

DEALER NAME: ________________________________ ID #: ___________________________

ADDRESS: _____________________________________________ ZIP CODE: ______________

PHONE #: _____________________________ FAX #: __________________________________

NOTE:

1. IT IS NOT NECESSARY TO RETURN THE FAILED PART. HOWEVER, IT SHOULD BERETAINED UNTIL CREDIT IS PROVIDED IN CASE KONICA REQUESTS THAT THEYBE RETURNED FOR FURTHER INSPECTION.

2. IN ORDER TO RECEIVE CREDIT FOR A FAILED DEVELOPING UNIT, THE ATTACHEDCALCULATION FORM MUST BE COMPLETED AND MUST ACCOMPANY THIS FORM:

NOTE: IF MORE THAN ONE REPLACEMENT HAS BEEN REQUIRED ON A SINGLEENGINE, THE HISTORY MUST INCLUDE INSTALLATION, REMOVAL DATA, ANDPURCHASE ORDER NUMBERS FOR EACH DEVELOPING UNIT.

FAILURE TO PROVIDE THIS INFORMATION WILL PREVENT ISSUANCE OF CREDITFOR THE PART.

NAME OF INDIVIDUAL SUBMITTING REQUEST

PRINTED: _____________________________ SIGNATURE: __________________________

DATE SUBMITTED: _______________ EMAIL ADDRESS:___________________________

DATE: ____________ DISAPPROVED APPROVED CREDIT %

IF DISAPPROVED, REASON: _____________________________________________________


7075/FORCE 75 DEVELOPER UNIT CREDIT PROGRAM

THE FOLLOWING INFORMATION MUST BE COMPLETED FOR EACHENGINE AND FOR EACH PREMATURE DEVELOPER REPLACEMENT

REQUIRED ON THAT ENGINE

Item SNo.Count at

InstallCount atRemoval

Total CopiesProduced Yield %

P.O.Number

1 2 3 4 5 6 7 8 91011121314151617181920

Sample of Required Submission Data:A B C D

a 55VA00010 0 4,581,329 4,581,329 76 010443b Same 4,581,329 7,675,429 3,094,100 52 011489c 55VA01018 0 4,300,000 4,300,000 72 A12543

(C=B-A) (D=C / 6,000,000)

NOTE: TO VERIFY REPLACEMENTS, THAT PORTION OF THE ENGINE SERVICE HISTORY SHOWING THE DATE AND T.C. READING FOR EACH DEVELOPER UNIT MUST ACCOMPANY THIS FORM.

FAILURE TO PROVIDE THIS INFORMATION WILL PREVENT ISSUANCEOF CREDIT FOR THE PART.

PRODUCT: 7075/FORCE 75/7085 NO.: 15 DATE: 5/31/02

SUBJECT: LINES ON LARGE SIZE COPIES

Output produced in printer mode or internal test patterns on large paper (11x17) exhibits bla cklines in the direction of the drum shaft from the m iddle to the trail edge of the paper. These l inesare barely visible on copies w ith text only but are apparent on halftone or copies of photos. Usethe procedures in this bulletin to correct the problem .

PROCEDURE

140mm to 148mm From the Trail Edge of the Copy.

This occurs just after passing the registration roller. It is caused by a difference in speed betweenthe registration and pre-transfer rollers. If only the registration roller is replaced, the outerdiameter of the new roller is larger than that of a worn roller. As a result , the rotation speed ofthe registration and pre-transfer rollers may be d ifferent. Use the follow ing procedure to adjustthis.

CBA

D

A = 140-148mm B = 110-115mm C = 40-50mm D = 0 - 30mm

7075/FORCE 75/7085 Page 1 of 3 Bulletin #15 (5/31/02)manuals4you.commanuals4you.com

Vertical Magnification Adjustment Procedure

1 . Use large-sized (11x17), thick paper (34lb.) for all adjustments.

2 . Load the paper into one of the copier trays. Do not use LT-411 or the bypass tray to load thepaper for adjustment. Depending on LT-411 installation conditions, there may be a d ifferencefrom the m a in body trays.

3 . Access 36 mode, 2. Image ad justment = 2. Magnification adjustment = 1. Printer drum c lockadjustment = copy screen. Then, select the tray where you loaded the large size paper andpress the copy key.

4 . Measure the distance between the distortion m a rk at the leading edge and the center of thecopy. For the exact position, please refer to the illustration below . The arrow in the illustrationshows the paper exit d irection.

5 . Ad just the paper vertical magnification until the distance becomes 102.8m m (+/- .2m m ). If thedistance is more than 102.8m m (+/- .2m m ), press the P and C keys together, return to thedrum ad justment screen, and input a sm a ller value for the vertical magnification. If thedistance is less than 102.8m m (+/- .2m m ), enter the printer drum c lock screen and input alarger value. Please note that the size of the paper im m ediately after exit is shorter due totherm a l shrinkage. Therefore, measure the distance after allow ing the paper to cool for 10seconds.

Printer Vertical Zoom Adjustment

6 . In order to check the result of the printer vertical zoom ad justment, perform steps 7 and 8.

7 . Access 36 mode. Enter 4. In test pattern output mode , input 9 and then press set. The copyscreen w ill appear. Select the tray containing the large paper. The image of 9 is sim ilar tohalftone.

8 . If the black band appears at 140m m to 150m m from the trail edge, jitter is occurring. Thisoccurs when the vertical magnification adjustment value is too large. Return to the printe rdrum clock adjustment screen (see step 3) and input a sm a ller value.

9 . Repeat steps 7 and 8 until the black bands at 140m m to 150m m disappear.

10 . Note that adjustment of the printer vertical magnification affects the printer leading edgetim ing and that tim ing should be checked/adjusted as required.

LEAD EDGE

102.8mm

Bulletin #15 (5/31/02) Page 2 of 3 7075/FORCE 75/7085

a. 110m m through 115m m from the trail edge of the copy.This is caused by the shock that occurs when the paper hits the fixing roller. Becausethick paper tends to curl heavily, the occurrence is higher w ith thick paper. When thickmode is selected, the sym p tom m ay be corrected. If the fixing exit plate is built up w ithpaper dust or toner, the paper may be caught for a brief time and cause jitter. C leanthe guide plate, check the surface and ensure that it is smooth.

b . 40m m through 50m m from the trail edge of the copy.This occurs after passing the pre-transfer roller. The speed of the pre-transfer rollerand the drum m ay be different. It may be improved by cleaning or replacing the roller.

c. 30m m through 0m m from the trail edge of the copy.This occurs after passing the pre-transfer roller guide plate. When the trail edge of thepaper passes through the transfer guide plate/upper, the trailing edge may be repelled ,causing uneven background to occur.

Other Factors

• If a spacer has been inserted for thick paper to increase fixing roller pressure, transfer jit termay result. If this occurs, remove the spacer.

• Even if thin paper is used, when the paper weave direction is vertical (long grain) the paper isstiffer and transfer jitter may occur frequently. Use paper with a different weave directio n (shortgrain).

• The thicker the paper, the more paper curl direction is a factor. Turning the paper over in thetray may be effective in reducing transfer jitter.

Summary

• Frequent transfer jitter in large paper is related to the entrance of the paper to the fixin g unitand hesitation during paper conveyance.

• It occurs because of the shock to the paper when it enters the fixing unit and the difference inspeed of paper entering and exiting the fixing rollers. Possible counter measures are to elim inateanything that m ight delay the paper and to adjust the roller speed after replacing any transferconveyance rollers.

• Thin paper is less stiff and has less friction. Using thin paper may correct transfer jitter.

• If black lines occur in the copy mode , the cause may be d ifferent than those listed above. Checkthe symptom carefully to specify the cause, i .e. : fixing drive gears, fixing unit bearings,exit/inversion unit rollers, one-way bearings, etc.


7075/FORCE 75/7085 Page 3 of 3 Bulletin #15 (5/31/02)manuals4you.commanuals4you.com

PRODUCT: 7075/FORCE 75/7085 NO.: 16 DATE: 8/23/02

SUBJECT: WEB DRIVING MOTOR PROGRAM

Models 7075, FORCE 75 Only

Web driving motors in models 7075 and FORCE 75 may fail before their scheduled replacementtime (every 3,000,000 copies) . New style motors are now available; they were installed duringproduction beginning w ith serial #55VE04718 for the model 7075 and 55ZE00241 for the modelF O R C E 7 5 . Please note that K B T ’s Parts D istribution Center has been shipping the new styleweb dr iving motor since January, 2002.

PARTS

Through February 17, 2003 , these motors can be obtained from the east coast Parts DistributionCenter free of charge for 50% of the m a chines noted above, using the special ordering procedurein this bulletin. The Parts Center wil l charge for al l parts ordered using standard orderingprocedures.

Free-of-charge program s are based on statistical percentages of m a chines that are l ikely to beaffected by certain m o d ification program s. For percentage program s, the quantity of partsusually is sufficient to mod ify all of the m a chines that need the change. However, i f more thanthe statistical percentage of machines serviced by any one branch or dealer require a mod ifica-tion , additional parts can be obtained using the FTR (Field Technical Report , Form T P -2)established for that purpose. Use the FTR only if additional parts are needed . (Purchase thenecessary new parts and return the old parts with the properly com p leted FTR form to receivecredit.)


Web driving motor (special) 55VA80171FOC N /CWeb driving motor (standard) 55VA80171 $ 65.33

* Prices are subject to change w ithout notice.

7075, FORCE 75, 7085 Page 1 of 2 Bulletin #16 (8/23/02)


Order form B --439 must be com p leted as instructed below for entitlement to this free-of-chargeprogram . The Parts Center will charge for all motors ordered using standard ordering procedures.This free-of-charge program expires February 17, 2003 . Orders w ill be filled at a 50% rateunder this program .

1 . Use a separate Form B --439 when ordering these motors. Do not m ix other parts w ith thisorder.

2 . Complete the B--439 as instructed below and forward it to the Parts D istribution Center, orfax it to 1-800-456-6422, ext. 2424. Do not use Koninet.

A . Enter the special program name as indicated above.


C . Enter the date that you subm it this order.

D . Enter your branch/company name and com p lete shipping address.

E . Enter the part number(s) listed in this bulletin.

F . Enter the total number of motors required and eligible (50% of serial numbers).

G . L ist the serial numbers of the m a chines w h ich require the motors. (The number of serialnumbers m u st equal 1 ⁄2 the total quantity listed for item F .)

H . S ign the form .


WEB DRIVING MOTORPROGRAM

Bulletin #16 (8/23/02) Page 2 of 2 7075, FORCE 75, 7085manuals4you.commanuals4you.com

TECHNICALBULLETIN



SUBJECT: WIRING CHECKVertical Conveyance Unit Wiring Harness

SymptomUpon machine power up, code J32-11 (fixing/exit jam) or F53-12 (power supply abnormality) will occur.

CauseWiring harnesses not positioned and secured properly can lead to wire damage, normally as a result of beingpinched between two surfaces while reassembling machine components, such as panels for example.

Such is the case with the wiring harness of the vertical conveyance unit. Several cases of codes J32-11 and F53-12 have occurred as a result of wire damage following LCT unit hookups. View A shows the wiring harnessimproperly positioned. In this case the wires are at great risk of being pinched between the machine frame andpanel when the side panel is reinstalled. If the 5V wire of the harness is damaged and shorted to ground, a J32-11 code will occur; with the 24V wire shorted to ground, an F53-12 code will occur.

Action and ResultIf code J32-11 occurs, the 5V wire has been damaged. Repair the damaged wire(s) by wrapping each wire withelectrical tape. If code F53-12 occurs, the 24V wire has been damaged and the ICP fuse on the printer controlboard is blown. Repair the damaged wire(s) with electrical tape and replace the printer control board.

Preventive MaintenancePreventive maintenance is the best approach to avoiding costly repairs. Prior to hooking up the LCT unit duringmachine setup, or during the next service call, inspect the vertical conveyance unit wiring harness to ensure that itis configured as shown in View B. If the harness appears as in View A, rotate the top clamp 90 degrees andrebind the wiring as necessary so that it looks like View B.


Wiring harness

View A View B

Wrong Right

Vertical conveyance unitof main body

Connector

Wiring harness Rotate clamp 90degrees as shown

7075/FORCE 75/7085 Page 1 of 2 Bulletin #18 (9/12/02)

TECHNICALBULLETIN



SUBJECT: DRUM PROTECTION SHEETTransfer/Separation Corona Unit

Purpose of ChangeTo protect the drum from being damaged. The transfer/separationcorona unit can be jolted out of position if the ADU carriagetension lever is released, to remove a paper jam for example,then returned back to its normal position using too much force.Under these circumstances, the upper transfer guide plate maycontact the drum and cause damage.

Where ChangedA drum protection sheet is now being applied to the uppertransfer guide plate to provide a barrier between the plate and thedrum should the transfer/separation corona unit get jolted out ofposition.

Drum

Contact area

Transfer/separationcorona unit

Upper transfer guideplate

Drum protectionsheet


7075/FORCE 75/7085 Page 2 of 2 Bulletin #18 (9/12/02)

ApplicabilityThe table below identifies those machines installed with the protection sheet during production. For machinesbelow the serial numbers, refer to the Installation section of this bulletin.

Model Beginning Serial Number

7075 55VE03747

FORCE 75

7085All machines

PartsThe transfer/separation corona drum protection sheet can be obtained from the Parts Distribution Center usingstandard ordering procedures.

DESCRIPTION PART NO.DEALER

UNIT COST*

Sheet, drum protectionTransfer/separation corona unit

55VA2691055VA–9924

$ 4.21211.74

*Prices are subject to change without notice.

InstallationTo apply the drum protection sheet, proceed asfollows:1. Remove the transfer/separation corona unit from

the main body and lay it on a sturdy, flat worksurface.

2. Peel the backing from the sheet and align the sheet to theupper transfer guide plate, positioning the angled edge at therear end of the plate, so that the sheet extends beyond theedge of the plate by no more than 0.3mm (see illustrations).

3. Firmly press the aligned sheet into place.

4. Reinstall the transfer/separation corona unit.


Drum protection sheet

Upper transfer guide plate

Angled edge ofsheet at rearend of plate

0.3mm max.

SheetUpper transferguide plate

Front end view of transfer/separationcorona unit

7075/FORCE 75/7085/FORCE 85 Page 1 of 2 Bulletin #19 (5/21/03)

TECHNICALBULLETIN


PRODUCT: 7075/FORCE 75/7085/FORCE 85 NO: 19

DATE: 5/21/03

SUBJECT: FIRST PAPER FEED JAMMING PREVENTIONMODIFICATION

Model FORCE 75 Only

A modification kit is available to correct first paper feed jamming in the 500- and 1000-sheet paper trays. Paperdetection failures can result in F18-10 (tray 1), F18-20 (tray 2), and F18-30 (tray 3) service codes. This is causedby the movement of the paper guide/left in each tray from its proper position which allows incorrect paperplacement in the tray. The kit has guide stopper plates to better secure the paper guide and longer actuators toensure proper upper limit detection. These parts have been installed in machines during production beginningwith serial number 55ZE00193; machines below this serial number may require the kit. Please note that this isnot an FOC program or mandatory modification.

Guide stopper plate

Paper guide/left


7075/FORCE 75/7085/FORCE 85 Page 2 of 2 Bulletin #19 (5/21/03)

PartsThese parts can be obtained from the Parts Distribution Center using standard ordering procedures.

DESCRIPTION QUANTITY PART NO.DEALER

UNIT COST*

Modification kitScrew (M4X6)#

Kit contents:Actuator (500 sheet tray)Actuator (1000 sheet tray)Guide stopper plateInstallation sheet

118

2 1 3 1

55VA-K03000Z194061

55VA4034055VA4134055VA40740

N/A

$ 18.25.15

$ 3.323.323.84

N/C

*Prices are subject to change without notice.#Screws are not included with the kit. Six (6) screws will be needed to install each guide stopper plate (p/n55VA40740); a total of 18 screws will be needed for each kit.

INSTALLATION PROCEDURES

Actuators

Use the actuators in the kit to replace the upper limit actuators in each of the trays.

Stopper Plates

Each modification kit has instructions for installing the stopper plate.


TECHNICALBULLETIN


PRODUCT: 7075, FORCE 75, 7085, FORCE 85 NO: 20 DATE: 9/17/03

SUBJECT: CHANGE OF REGISTRATION SHAFT HOLDERModels 7075, FORCE 75 Only

As the registration shaft holders wear from contact withthe registration roller, they produce dust that collectsbetween the shaft holder and the roller. This affects thestart of the registration roller’s rotation and can causeleading edge timing error (J31-2) on machines with 2million copies or more. New shaft holders were installedduring production on model 7075 beginning with serialnumber 55VE04367 and model FORCE 75 beginningwith serial number 55ZE0241. The new shaft holdersshould be replaced as a set.

PartsThe new shaft holders can be ordered from the Parts Center using standard ordering procedures.

DESCRIPTION PART NO.DEALER

UNIT COST*

Registration shaft holder 55VA76020 $ 5.89

*Prices are subject to change without notice.



SOLUTIONS & TECHNICAL SERVICES DIVISION

Bulletin Number 4832

Date: 07/21/04

To: All Konica Minolta Digital Copier Dealers

From: Service Support

Subject: BREAKAGE OF DEVELOPING MAGNET ANGLE ADJUSTMENT PART

7075: 021 Force 75: 021 7085: 021

Force 85: 021 Di750: 097 Di750PE: 050

Di850: 052

Supersedes 7075/Force 75/7085/Force 85 bulletin number 21 dated 5/10/04 and 21A dated 5/25/04. This bulletin has been revised to include Models Di750, Di750PE, and Di850.

NOTE: 1. Field Modification 2. FOC Program

SYMPTOM: Occurrences of frequent toner spills from some developing units are found to be caused by an incorrect magnet angle setting due to a cracked adjustment part that determines the angle of the magnet (see illustration). WHERE CHANGED: The durability of the magnet angle adjustment part has been enhanced to reduce the likelihood of breakage during the manufacturing process of the machine. This item is not available as a spare part and therefore cannot be ordered; however, a field modification has been established, as identified in this bulletin, to provide a means of correcting the toner spillage problem identified above.

Magnet angle adjustment part

Crack

of 5 Bulletin Number 4832

APPLICABILITY: The field modification provided in this bulletin applies to all machines within the serial number ranges provided below. The parts associated with this modification can be obtained free of charge via the FOC program detailed under the PARTS INFORMATION section, below. This in not a mandatory modification. However, it is highly recommended that this modification be installed during the next PM or service call.

MODEL SERIAL NUMBER

7075 55VE00010 → 55VE04786

and 55VE10001→ 55VE10120

FORCE 75 55ZE00001 → 55ZE00240

7085 56GE00001 → 56GE01263

and 56GE10001 → 56GE11442

FORCE 85 56ME10001 → 56ME10085 Di750 XX03195 → XX03450

Di750PE XX01001 → XX01015

Di850

XX01147 → XX01148 XX01209 → XX01436

and XX01459 → XX01792

PARTS INFORMATION: Through November 5, 2004, the part associated with the field modification procedure outlined in this bulletin for machines within the serial number range provided above is available 100% free of charge using the special ordering procedure in this bulletin. Ensure to include on the form the serial numbers of the machines you are obtaining the part for. The part listed below is obtainable only through this FOC program; it will not be available as a spare part.

DESCRIPTION

PART NO.


56GA98030–01FOC



SPECIAL ORDERING PROCEDURE: Order form B–439 must be completed as instructed below for entitlement to this free-of-charge program. The Parts Center will charge for all parts ordered using standard ordering procedures. This free-of-charge program expires November 5, 2004. Orders will be filled at a 100% rate under this program. 1. Use a separate Form B–439 when ordering this part. Do not mix other parts with this order.

2. Complete the B–439 as instructed below and forward it to the Parts Distribution Center, or fax it to 1-800-456-6422, ext. 2424. Do not use the KoniNet ordering process.

A. Enter the special program name as indicated above.

B. Enter your ID number.

C. Enter the date that you submit this order.

D. Enter your branch/company name and complete shipping address.

E. Enter the part number(s) listed in this bulletin.

F. Enter the total number of parts required.

G. List the serial numbers of the machines which require the part. (The number of serial numbers must equal the total quantity listed for item F.)

H. Sign the form

7075/Force 75/7085/Force 85/Di750/Di750PE/Di850 Developing Magnet Angle Adj. Part Program


FIELD ACTION: This bulletin provides a procedure for installing the improved magnet angle adjustment part as a preventative measure. Field Modification 1. Referring to the service manual, remove the drum cover,

the screws that secure the drum carriage, and the drum coupling. Pull out the drum carriage.

2. Remove the developing suction filter. 3. Remove the developing unit from the drum carriage and

place it on a sturdy, flat surface. 4. Record the setting of the current magnet angle adjustment

part located at the front end of the developing unit before removing it.

5. Remove the e-ring and white plastic stopper idle roller from the magnet shaft.

6. Now remove magnet angle adjustment part by first removing the paint-locked screw that secures it. Then remove and discard the steel washer (not shown) located behind the magnet angle adjustment part. (The steel washer is not used with the new magnet angle adjustment part.)

7. Install the new magnet angle adjustment part (1) onto the shaft (2) as the current one was installed, aligning the D-shaped hole of the part (3) with the D-shaped contour of the shaft (see illustration). Once installed, ensure that the part fits snugly on the shaft, not loose. Note: By design, the magnet angle adjustment part may be

somewhat difficult to insert onto the shaft to ensure a snug fit during machine operation.

8. Reinsert the magnet angle adjustment part screw, but don’t over tighten it to enable adjusting the magnet angle.

9. Using a jeweler’s loupe (magnify glass) or the like, set the angle to

the reading that you previously recorded in step 4, above, verifying the setting according to the specifications provided below.

Stopper idle roller

E-ring


Magnet Angle Specification 7075/Force 75/Di750/Di750PE: 3.8 (tolerance range: 3.3 → 4.2)7085/Force 85/Di850: 2.8 (tolerance range: 2.5 → 3.1)



10. Once the angle of the magnet angle adjustment part has been

adjusted to the correct setting, firmly tighten the adjustment part screw and apply a screw-locking agent (ThreeBond 1401B is recommended) along the edge of the screw to lock it into place (see illustration).

REINSTALLATION: 1. Reinstall the stopper idle roller and e-ring onto the magnet shaft. 2. Install the developing unit back onto the drum carriage and, with a finger, try to rotate the developing

stopper idle roller – it should not rotate. 3. Insert the developing suction filter. 4. Install the drum coupling and then insert the drum carriage back into the machine, securing it with the

screws. 5. Install the drum cover.

239-27



Date: 08/30/04



Subject: REQUIREMENTS WHEN USING TU-109 ON 7085

7085: 022 Di850: 054

NOTE:

This bulletin applies only to the model 7085 (including options FS-211 and TU-109). Refer to bulletins 3976C, 4498A, and 4673 for related information pertaining to models Di850, FN-7, and TMG-3.

TOPIC: Trimmer unit TU-109, originally an option for the Model 8050, is now available for use with Model 7085 machines fitted with finisher FS-211. This provides the 7085 with the capability of 20-sheet trimming, an increase over the 16-sheet capacity it has with the TU-108.

REQUIREMENTS: To enable 7085/TU-109 compatibility, the following list of recommendations and requirements are established: • It is recommended that FS-211 units beginning with serial number 13TR01016, that include a more durable

folding knife driving cam assembly, be utilized. Finishers below this serial number should be upgraded with the improved driving cam assembly (p/n: 129X–534_) if it is to be used in this capacity. The new style motor mounting plate/B (p/n: 129X4828) must also be installed in conjunction with the cam assembly. For information pertaining to the installation of the improved driving cam assembly and new style motor mounting plate/B, refer to solutions 103382, 119002, 119003, 119004, 148942, 148943, 148948, and 148949 located on Konica Minolta’s NSSG site at:

http://techweb.konicabt.com/scripts/web_access.cgi?FUNC=DISP_LOGIN

• Install the entrance guide sheet and entrance pressure plate assembly that is shipped with the TU-109. • Ensure that the following minimum firmware levels that support 20-sheet trimming are installed:

o 7085 Image Control program version 43 o FS-211 FNS program version 15



• For 7085 machines fitted with an IP-602, the “TU-109” display is not available on the User Interface window

for IP-602/PS-362 drivers (PCL, Adobe-PS, Konica Minolta-PS drivers), and therefore “TU-108” will appear on the display instead. This may cause confusion with operators. In light of this, during your service call, provide them with the following information: o That although “TU-108” is displayed on the User Interface window, it will not affect the functionality

expected from the installed TU-109 unit. o That when they select the trimmer unit, they should first select the FS-211 unit, then select “TU-108”

during their selection of options on the driver. • The following 25 service mode DIP Switch has been established to enable trimming mode max-sheet

selection in support of the TU-109:

DIP Switch 26-0, when set to: “0” = 16-sheet capacity (for heavy stock paper, etc.) “1” = 20-sheet capacity (default setting)

Note that the max-sheet 25 service mode DIP Switch setting for the Stapling and Folding mode provided below should coincide with the trimming mode max-sheet selection provided above:

25-1 = “0”, 20-sheet capacity (default setting) 25-1 = “1”, 16-sheet capacity (for heavy stock paper, etc.)

239-28



Date: 12/6/04



Subject: CHANGE OF AUXILIARY AGITATOR SCREW GEARS IN DEVELOPING UNIT

7085: 023 FORCE 85: 022 Di850: 056

PURPOSE OF CHANGE: To prevent uneven density at the rear area of the image.

WHERE CHANGED: The number of teeth on the left and right auxiliary agitator screw gears have been changed to enable the developer to be agitated more efficiently, and thus disperse it more evenly to prevent density fluctuations. For easy identification, the color of the new gears are black as opposed to the current white gears.

APPLICABILITY: The new auxiliary agitator screw gears have been factory-installed on machines beginning with the serial numbers provided below.

Model Beginning Serial Number 7085 56GE10101

FORCE 85 56ME10028 Di850 XXX01382

Field modification is not required unless replacement is necessary due to breakage.

PARTS: The new auxiliary agitator screw gears can be obtained from the Parts Distribution Center using standard ordering procedures. These gears must be installed as a set.

DESCRIPTION PART NO. Screw gear/left Screw gear/right

56GA77360 56GA77370

239-29

Left gear Right gear


Technical Bulletin Konica 7075

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Transcript of Technical Bulletin Konica 7075