IBM 3112, Service Manual

Page: 60 / 184

bh1s.bk : bh1saids.doc 44 Thu Apr 20 12:42:16 1995
44
Service Manual
Paper curl in which the edges of the paper curl toward the printed
side (cold paper curl) can corrected by increasing the fuser warm-up
time. Use the lowest setting that corrects the problem. Setting “0” is
the factory default and is the shortest warm-up time. Setting “5”
increases warm-up time by 90 seconds; lower settings increase the
time proportionately less. Settings other than “0” may reduce
throughput. Use the [+] or [-] key to change the number and then
select [SAVE].
Melting letterheads may be prevented by reducing the fuser
temperature as described above for paper curl.
Fuser Temperature
1. Enter Diagnostics mode.
2. Select [PRINTER SETUP].
3. Select [Fuser Temperature].
4. Select [Normal], [No Boost], Or [Low Temperature].
5. Press Return to return to the Diagnostics mode main menu.
Fuser Warm-up Time
1. Enter Diagnostics mode.
2. Select [PRINTER SETUP].
3. Select [Warm-Up Time].
4. Select a setting of “0” through “5”. Use the + or - key to change
the number. 0 is the shortest fuser warm-up (factory setting). 5 is
the longest fuser warm-up.
5. Press Return to return to the diagnostic menu.
LCD Test
To test the operator panel display:
1. Enter Diagnostics mode.
2. Select [HARDWARE TESTS].
3. Select [LCD Test].
4. Select [Single] or [Continuous].
5. The display goes through a continuous sequence of turning pels
on and off.
6. Press Return to stop continuous LCD test.
7. Press Return to return to the Diagnostics mode main menu.