After all, the platform 12a is too slow, the 388a platform is not fast enough, and a slightly larger print volume does not meet the demand。
Today it is recommended that medium-to-high-end machines be printed fast enough to add paper boxes, some models can add memory bars and the speed of printing PDF documents。

The location of the brother printer with the memory bar
Single printing
If printing speed is higher, single printing may take into account the brothers 5 series and the hewlett-packard 4 and 2 series and the powerful lbp6 series。
The hewlett-packard 4 series and the canon lbp6 series are common to platform machines such as hewlett-packard 401 and canon lbp 6300。

Hp 401
This series is stable and durable, third-party selenium drums are fully universal, and a direct search of the cf280a beryllium drums is sufficient and late carbon powder can be added to 12a and the cost of printing can be kept to a minimum。

Canon lbp6300
However, the hewlett-packard 4 series and the canon lbp6 series are resin membranes, which can break when printed too much, and even glue can lead to cardboard。
In terms of maintenance, both the hewlett-packard and the jiaen series are better than brothers, but printing is not fast enough for about 30 days。
The selenium drums are all drums designed in a pink form, and it's good for white, even zero。
Hewlett-packard 2 series 4 series recommended:
Hp laserjet p2035/2035n/p2055d/2055dn
Hp laserjet pro 400 m401d/m401dn/m401dne/m401dw/m401n/
Canon lbp6 model
Canon
Lbp6300n/lbp6650n/lbp6300dn/lbp6650dn/lbp6670dn/lbp253dw/lbp252dw/lbp251dw。
Bro 5 series single print type as follows:
Bro 5 is a metallic membrane film, which is durable, but is expensive to maintain, and the high price of the metallic membrane film is also very demanding for the membrane oil, which, if it is not the same, can lead to the discomfort of the membrane film, resulting in the fracturing of the membrane film into a mad card。
If you're going to collect the machine yourself and then fix it, it's more difficult for brother 5 to repair it. You really want to buy high-end machines like brother 5, either new or fixed。
In addition, selenium separation designs, using a slightly higher threshold, are recommended to the consulting seller for later replacement, and the first use of a printer could be misdirected。

Brother 5450 dn
Tn-3335 platform print speed 38 per minute:
Hl-5450dn/5440d/5445d/
If the hl-5450 series is not easy to buy, it can be seen that the associated lj3700/3800 machines are 5450 dn casings, and that the spare parts used by the brothers for the works of the union are completely universal。

In connection with 3700 dn
Tn 3435 platform/print speeds 40 or 50 per minute, but this series of machine membranes have become polymer material without previous membrane durability。
Brother hl-5595dn: print speed 50/minute. Brother hl-5585dn/hl-5590dn: print speed 40/minute。

Brother 5595
One
The models recommended above are single printers, with no photocopying and scanning features, and, of course, with a reduced budget of 500 for the photocopying function, additional funds are required to achieve it。
The hp m425dn/m425d and the brothers 8 series and the powerful imf 5 series and 6 series can be considered if photocopying and scanning are required。
Hewlett-packard and canon
The type of photocopy in the hewlett-packard 401 series is: m425dn/m425d, which you can understand as adding a photocopying function to 401dn/401d, as well as consumables and accessories。

Hp 425
Ic mf5950dw/canon ic
Mf5870dn/mf5930dn/mf6160dw/mf6140dn
Mf415dw/mf412dn。
Brother
The brother's 5450 series is photocopied with mfc-8510dn/mfc-8520dn, which is also generic。
Only the photocopying and scanning features were added, in addition to which 8520 dn supported double-sided scanning of photocopies, while 8510 dn could only print on two sides, photocopying and scanning were single-sided, with a printing speed of 36 per minute。

Brother 8510
The following is a copy of the bro 5595 series: mfc-8540dn:50ppm (for hl-5595dn), mfc-8535dn:46ppm (for hl-5590dn), mfc-8530dn:40ppm (for hl-558585d)。
If the brother's 8th series is hard to find, it would be useful to consider a condensed shell machine, which the brother would like to work for, and which would be common to the spare parts。
8950
Mfc-8540dn (50 ppm, 4th quarters) convergence m8950df。
Mfc-8535dn (46 ppm, 4th quarters) convergence m8650df。
Mfc-8530dn (40 ppm, 4th quarters) convergence m8650df。
Summary:
If you only need printing + automatic double-sided features, and you feel that 30 copies/minutes are not enough for printing speed requirements, the hewlett-packard 2 and 4 series, as well as the canon lbp 6 series, are suitable for you, and are easy to design and maintain and work with。
A larger print volume and greater hands-on capability can be considered, considering that brother-to-brother series 5450 can print at a maximum speed of 38 per minute, drum-separation designs, selenium drum life is long enough to change its own drum cores, or powder the powder box can be used, and printing costs can be kept to a minimum, but the ability to do is more tested。
The 5450 metallic membrane is more durable and, although broken, can be quickly dismantled with only three screws fixed and the plug removed and replaced with a new one。
If 38 minutes were thought to be not fast enough, the brother 5595dn series of machines would be more suitable, with a maximum of 50 printing speeds, but this set of membranes became polymer material without previous durable use and because the speed of printing was too fast for carbon powder。
If you are only for domestic use, the usual 30 or 38 per minute machine is enough, 50 per minute is too expensive and the cost of use is high。




