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set to YES on the cartridge chip. Even after the
cartridge is refilled, the printer display will still
show “Toner Low” for the supplies status section of
the menu. Since these machines do not have a
display, only the supplies status page will show
“Non HP Toner cartridge”. If the chip is removed,
the toner low sensors will be disabled, and will not
work again until a new HP cartridge is installed..
Replacement chips are available
HP LaserJet 4100
HP Part # C8061X (10K)
HP Part # C8061A (6K)
The HP-4100 was the first HP black toner cartridge
to use an ARD. Unlike other chips, these only
monitor usage not page counts. Each chip also has
its own serial number which in effect gives the
cartridge a serial number. After the OEM toner has
been used up, the “toner low reached” code will be
set to YES on the cartridge chip. Even after the
cartridge is refilled, the printer display will still
show “Toner Low” for the supplies status section of
the menu. The main display will then show “Non HP
Toner cartridge”. If the chip is removed, the toner
low sensors will be disabled, and will not work again
until a new HP cartridge is installed. Further testing
on this is being conducted. Another possible use of
this chip is when warranty repairs are needed. The
machine will have a complete history of all the HP
and non-HP cartridges used! Replacement chips are
available.
HP LaserJet 4200
HP Part # Q1338A
OEM Stated Yield: 12,000
The HP-4200 uses the second generation black toner
cartridge ARD’s. These chips (ARD’s) only
monitor toner usage not page counts. Each chip also
has its own serial number which in effect gives the
cartridge a serial number. After the OEM toner has
been used up, the “toner low reached” code will be
set to YES on the cartridge chip. Even after the
cartridge is refilled, the printer display will still
show “Toner Low” for the supplies status section of
the menu. Since these machines do not have a
display, only the supplies status page will show
“Non HP Toner cartridge”. If the chip is removed,
the toner low sensors will be disabled, and will not
work again until a new HP cartridge is installed.
Replacement chips are available.
HP LaserJet 4250/4350
HP Part # Q5942A/X
OEM Stated Yield: 10,000/20,000
The HP-4250/4350 uses the second generation black
toner cartridge ARD’s. These chips (ARD’s) only
monitor toner usage not page counts. Each chip also
has its own serial number which in effect gives the
cartridge a serial number. After the OEM toner has
been used up, the “toner low reached” code will be
set to YES on the cartridge chip. Even after the
cartridge is refilled, the printer display will still
show “Toner Low” for the supplies status section of