Download pdf - Remanufacturing the Ricoh SP4100 Toner Cartridges

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RECHARGEasia NOVEMBER 2011

The Samsung Ricoh SP4100 series of

printers are based on a Ricoh 31-36ppm,

1200 x 600 dpi engine. All models have a

'rst page out in less than 6.9 seconds. (Not

7 seconds… 6.9 seconds, how’s that for

being speci'c!)

2ese are not the easiest cartridges to do,

but if care is taken they are not too bad and

the profits are nice! Care must be taken

not to disturb the doctor blade as it is very

di3cult to set back properly. 2e entire Db

assemble can be removed though so it’s not

a problem. 2ese cartridges also us a chip

that must be replaced each cycle. 2ere is

a HY and a LY cartridge and both have a

different chip. To install the replacement

chips you will need to unsolder the old

chip and solder on the new one. The HY

cartridges only work in the 4100N and

4110N, the LY only in the 4100NL

2e models in this series are:

Ricoh Aficio SP-4100N KP (Uses HY

cartridge and chip only!)

Ricoh Aficio SP-4100NL (Uses LY


Ricoh Aficio SP-4110N KP (Uses HY


The Ricoh Low cartridge (403073) is

rated for 7,500 pages at 5% coverage and

the High Yield cartridge (402809) is rated

for 15,000 pages at 5%.

Required Tools

1) Toner approved vacuum.

2) A small Common screw driver

3) #1 Phillips head screwdriver

4) Needle nose pliers

5) Soldering Iron and associated tools/

supplies

Required Supplies

1) Ricoh SP-4100 toner LY or HY load

2) Ricoh Sp-4100 Developer Same for

both LY & HY

3) Developer sealing strip

4) Toner hopper sealing strip

5) LY or HY Replacement chip

6) Drum padding powder

7) PCR Cleaner

8) Conductive grease

1) Clean the exterior of the cartridge.

2) Place the cartridge with the handle

facing you. On the left side, remove the

three small screws and one large screw. See

Figure 1

3) On the right side, remove the 2 small

screws and 1 large screw. See Figure 2

4) Remove the gear side end cap, 2 gears

may stay on the end cap when removed.

See Figures 3 & 4

5) Remove the four loose gears. See Figure

5

Remanufacturing the Ricoh

SP4100 Toner Cartridge

By Mike Josiah and the Technical Sta! at Uninet Imaging

Mike Josiah

Mike Josiah is the Technical Director at UniNet East Coast o"ce, a global distributor of toner, Smartchips, OPC

drums, and other toner remanufacturing components. Mr. Josiah is an industry veteran since 1987, and a member

of ASTM committee F.05, the STMC Technician Certi)cation committee, as well as an STMC trainer. He and

his support team at UniNet contribute with technical articles to industry trade magazines, and conduct seminars

at association meetings and tradeshows worldwide.

Figure 1

Figure 2

Figure 3


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6) On the opposite side, carefully pry off

the end cap. Leave the contact plate alone.

It looks like it must be removed, but it does

not. See Figure 6 & 7

7) Separate the two halves. See Figure 8

8) Remove the drum. See Figure 9

9) Remove the PCR. See Figure 10

10) Remove the PCR holders. See Figure

11

11) Remove the wiper blade shield. Slide it

over from the bent side See Figure 12

12) Remove the 2 wiper blade screws and

wiper blade. See Figure 13

13) On the top of the waste chamber sides,

pull out on the tabs and remove the waste

hopper. Clean out all remaining waste from

the hopper. See Figures 14 & 15

14) Clean out all the waste toner from the

cleaning roller and lower waste section. See

Figure 16

15) Install the upper waste hopper. It

should snap in place. See Figure 17

16) Coat the wiper blade with your

preferred lubricant and install the blade.

Remanufacturing the Ricoh SP4100 Toner Cartridges Continued

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 4

Figure 14


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Install the 2 screws. See Figure 18.

17) Install the wiper blade shield left (Bent)

side 'rst through the hole on the side the

cartridge. Slide the flat side out the slot,

making sure the spring is engaged. Make

sure the blade slides back and forth on the

spring when done. The plastic tab in the

center should fit into the rectangular slot

of the shield. See Figures 19 & 20

18) Install the PCR holders and Cleaned

PCR. If they do not 't easily, they are on

the wrong side. 2e side of the PCR with

the pointed shaft should go to the black

holder. See Figures 21 & 22

19) Install the drum and place the waste

chamber aside. Put the large gear to the

gear side of the cartridge. See Figure 23

20) Remove the fill plug from the toner

hopper. Dump out any remaining toner.

See Figure 24

21) It is best not to remove the doctor

blade as it is very di3cult to get back in the

right place. The entire mag roller section

will be removed in the next few steps to

it is possible to clean all the old toner/

developer out. See Figure 25

Figure 15

Figure 16

Figure 17

Figure 18

Figure 25

Figure 24

Figure 19

Figure 20

Figure 21

Figure 23

Figure 22


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22) Lift up plastic bar next to all three tabs,

remove the developer hopper. See Figures

26 & 27

23) Remove the metal bar from the large

white gear, Press in on the locking tabs and

remove the gear. See Figures 28 & 29

24) Remove the sealing tape from the

bottom of the hopper. See Figure 30

25) Pry up the tabs on both sides of the

cartridge to remove the upper magnetic

roller section See Figures 31, 32 & 33

26) Vacuum/blow out all remaining toner/

developer from both sides of the hopper.

See Figure 34

27) Fill the developer section with the

new developer. Make sure you keep all

chambers evenly 'lled! See Figure 35

28) Install the seal on the developer hopper

as shown, Make sure the tail is over the

non gear side. To snap the hopper in place,

line up the top 3 tabs and press the hopper

down to lock in place. See Figures 36 & 37

29) Install the seal on the toner section as

shown. Make sure the tail is over the non

gear side of the hopper. See Figure 38

30) Snap the magnetic roller section in

Figure 35

Figure 27

Figure 28

Figure 29

Figure 30

Figure 31

Figure 32

Figure 33

Figure 26 Figure 34


Figure 36


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place. See Figure 39

31) Replace the bottom tape seal. If it does

not stick, activate the glue with alcohol

or use black electrical tape. It’s best to use

the better rubber kind, not vinyl tape. See

Figure 40

32) Fill the hopper with Ricoh Sp-4100

toner. Replace the 'll plug. See Figure 41

33) Replace the large white gear and the

metal insert. See Figure 42

34) Install the gears as shown. See Figure

43

35) Remove the two screws on the gear

end cap. Remove the back holder and

remove the chip assembly from the end

cap. See Figure 44

36) Unsolder the old chip from the holder

and solder the new chip in place. Be careful

not to use too much heat! See Figures 45

& 46

37) Install the chip assembly, back holder

and two screws on the gear side end cap.

See Figure 47

38) Place the two halves together. Fit the

waste chamber tab over the post on the

Figure 37

Figure 38

Figure 39

Figure 40

Figure 41

Figure 42

Figure 43

Figure 44

Figure 45

Figure 47

Figure 46


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toner hopper. See Figures 48 & 49

39) Install the gear side end cap. Rotate

the drum a little so that all the gears mesh

properly. See Figure 50

40) Install the 3 small screws and one large

screw as shown. See 'gure 51

41) Install the contact end cap and 3

screws, 2 small and one large. See Figures

52 & 53

Repetitive Defect chart

Upper Fuser Roller: 105mm

Lower Pressure roller: 100mm

OPC Drum: 94mm

Transfer roller: 50mm

Error Codes

The error codes used in this series are all

in plain English so there is no need to list

them here.


Figure 48

Figure 52Figure 50

Figure 49

Figure 53Figure 51