Differences Between the D014/D015 & B132/B200
SM D-37 D014/D015/D078/D079
2. PTR layer cracking
The service life of the PTR has been extended to 600K.
Cracking between the layers of the PTR occurs in the B132/B200, resulting in its short
service life: 150K. This cracking is caused by uneven pressure at the nip of the PTR and
paper transfer bias roller above.
To equalize this pressure at the nip between the ITB bias roller (opposite the PTR in the
ITB) and the PTR in the D014/D015, the ITB bias roller of the D014/D015 is composed
of softer material. This extends the service life of the D014/D015 PTR to 300K.
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