f370 test is ok but after printing white paper

[piment]

hi

to everybody

now i am repairing a frontier 370   in which i have some problem with laser bloc

with error SOS CALL A TECHNICIAN i solve the problem by changing the ldd board

i correct the printer to have a good daily setup.  when i started to print allthe sheet of are white

thanks for helps

best regards

[PRASANNA PHOTO TEC]

i confuse.

the set up print are nomal? can see any colours?

or

all made prints are white ( blank)?

[piment]

hi

the test paper have all  the colors correct

now the prints sended by the scanner or fdia aren't  printed so the white paper

thanks

[piment]

yes   blank

[PRASANNA PHOTO TEC]

ok

you have to test laser frist,

1) open upper covers

2) remove  screw where fix laser unit

3) pullup 70% angale laser unit ( distrbution side)

4)  put some paper pcs  interlock swichs

5) see machine is ready to print mode

6) take whaite paper pcs (lick set up print back side)

7) the laser unit  under side have  small solenoid and door

8) near door  put paper pcs (no 6)

9)  send scaner  side some of test print  lick paper set up

10)  see  laser unit   have some expose light  to paper  pcs ( its very small light , please check your room light off )

11)  check 2-3 times

12)  tel me what happen

[piment]

hi

i am happy with your reply

as i told you before my  test print is good  all colors details are printed

but when i send prints ( films or digitals ) the prints paper are blank

my laser seems correct

best regards.

[sisir]

Is there any error during print? Is there any unwanted thin black (or any other colored) line on any of the white paper?

[sisir]

Is there any error during print? Is there any unwanted thin black (or any other colored) line on any of the white paper?

[piment]

HI

TO EVERYONE

MY FRONTIER 370 IS PRINTING BLANK WHITOUT  ANY ERROR AND NO STAIN  

BUT MY TEST IS PRINTED WITH ALL THE PATTERN

I NEED A HELP THANKS  

WHILE LOOKING THROW   ONLY THE RED IS LIGHTING FOR SECONDS IN NORMAL PRINTING