HP laserjet m1522nf known issue

HP Laserjet m1522nf fax issuse in Malaysia.

Problem:Transmitting Send or receive fax print out blank sometimes.
Error message : Fax error 441

Method to solve : try disabling the V.34 protocol. To do this, go to the device control panel and select Menu, and then Fax Setup, All Faxes, V.34, and Off.
This is a common problem for the the m1522nf.

panasonic kx-fp343 service info diagram

panasonic kx-fp343 service info diagram

panasonic kx-fp343 fax machine for technical guide





Transfer roller diagram

Repair Sharp FO-1460 Fax Machine

Model: Sharp FO-1460
Customer complaint problem: fax out client received black

picture of sharp-FP1460



we suspect is scanner unit problem.
The steps to change the scanner unit

step1: open the panel cover


step2: locate the scanner unit


step3: change the new scanner unit


step4: close and screw back the cover

we tried to fax out after changed the scanner unit. Other people received with clear image.