High Durability BK Drum DR315K

[tech51]

No counter data is stored on the chip. Chip consists of a drum set resistor and a fuse that reset the count on the machine.So surely you must change something on the machine to in crease the yield info. So guess it will be firmware and soft switches. Once its done you need to replace only with the high yield drums.

No dipswitches to set only firmware update required.

Also once firmware is updated either drum type can be used.

[tech51]

Thanks for the pics. Not sure how this would stop the OPC wearing out.

It won’t but in theory at least it should help prevent the charge roller getting soiled and putting scratches in the opc layer.

[copier tech]

No counter data is stored on the chip. Chip consists of a drum set resistor and a fuse that reset the count on the machine.So surely you must change something on the machine to in crease the yield info. So guess it will be firmware and soft switches. Once its done you need to replace only with the high yield drums.

The count is kept on the drum chip? If I swap round 2 colours drums the counter moves with the drum.

[tsbservice]

The count is kept on the drum chip? If I swap round 2 colours drums the counter moves with the drum.

Counters stay with machine not with drums.

[BillyCarpenter]

Interesting thread but has anyone determined if it's best to use the high durability drum? I need to know so I can stop reading this thread.

[tech51]

Interesting thread but has anyone determined if it's best to use the high durability drum? I need to know so I can stop reading this thread.

As I said I only use them on the faster/higher volume machines where there appears to be a benefit.

On lower volume/slower machines there doesn’t seem to be much difference in the life, but you’d really need to experiment yourself as I guess environmental conditions in different countries would make a difference.

[copier tech]

Counters stay with machine not with drums.

Ok, but say I fit a new drum machine resets the counter to 0%. But if I then refit the old drum back the counter will change back to used counter @ 80% etc.

[tsbservice]

Ok, but say I fit a new drum machine resets the counter to 0%. But if I then refit the old drum back the counter will change back to used counter @ 80% etc.

Nope. When you fit new drum counter resets to 100% then counting down with machine in use. If you remove new drum and put back old one drum life should stay 100%.
Please re-read what allan wrote it works exactly like that. In example of bizhub C258 consumables life counts are stored in EEPROM and see below quote from manual.

"Since the counter will be cleared when the EEPROM is replaced with a
new one, replace the following parts with new ones.
Configure [New Release] in Service Mode before replacing the transfer
belt unit and the fusing unit. Besides, configure [Counter clear] before
replacing the transfer roller.
• Developing unit/Y,M,C,K
• Drum unit/Y,M,C,K
• Toner cartridge/Y,M,C,K
• Transfer belt unit
• Fusing unit
• Transfer roller
• Feed roller, pick-up roller, separation roller (including options)"

[Toxic]

Never pay attention on chip pcb, is it possible just replace (re-solder) fuse on drum chip to reset drum counter?

[allan]

Never pay attention on chip pcb, is it possible just replace (re-solder) fuse on drum chip to reset drum counter?

Yes I do it with drum chips and developer chips. On the C360 range you could just short the pins out during the detection time. The C364 range they changed it so that it was not possible. So i started taking the TN512K toner chips and removed and reused the ICP(fuse) on there. Used the TN512K and turn them to TN321 to save money. TN512 cheaper than TN321 and you score the fuse.

So how will the machine know the difference between the high yield or the standard drum?