Boot Sequence[Nc60] - Xerox DocuPrint C55 Service Manual

BOOT SEQUENCE: [NC60]
The following is the boot sequence for the
NC60 printer. The ESS also boots while the
printer is booting.
ESS BOOT SEQUENCE
1. Power and Fail LEDs on.
2. Fail LED off.
3. Boot 1 sequence begins.
Initialize i960 CPU.
Base RAM check (32 MB).
ROM Check.
ASIC & DMA Controller Check.
Parallel and Serial Port Check.
Message Display indicates:
POWER ON VERSION n.nn
Message display off.
All LED' s on, all pixels on.
4. Boot 2 sequence begins.
* displayed as tests are conducted.
Hard Disk Test.
SIMM 1 through SIMM 4 test.
XIE RAM test.
Optional NIC card slot test.
10MB Ethernet test. (Internal NIC).
Option Flash ROM test.
Floppy Test.
DP-TEK test.
Memory test.
ESS Ready.
GENERAL PROCEDURES
BOOT SEQUENCE
IOT BOOT SEQUENCE
1. ROM Checksum.
2. RAM Checksum.
3. NVM Checksum.
4. All Sensors Checked for Paper.
5. Main Motor On.
6. Process Control Setup Begins.
7. * Circles CCW during ESS Boot 1.
8. ESS Ready.
NC60 ESS LED' S
POWER
FAIL
The Power LED lites when there is +5 VDC
available on the ESS.
The Fail LED lites when the ESS fails Self
Test.
2/99
6-40
IOT COPY QUALITY SETUP
1. Main Motor and Fuser Motor on.
2. Cleaner Solenoid energizes
Cleaner Assembly moves
Transfer Drum.
3. Black Developer Clutch energizes and
Black toner concentration is checked.
If necessary, the Black Toner Motor
switches on and " tones up" the black
developer.
4. Cyan Developer Clutch energizes and
Cyan toner concentration is checked.
If necessary, the Color Toner Motor
and Cyan Toner Solenoid switch on
and " tone up" the cyan developer.
5. Step 4 is repeated for Magenta and
Yellow.
6. Main Motor pauses with white patch
under Gamma Sensor and the Gamma
Sensor is calibrated.
7. Three Black patches printed on top of
white patch, 50 volts apart. Gamma
sensor measures patches and sets
Black developer bias.
8. Three Cyan patches printed 50 volts
apart. Gamma sensor measures
patches and sets Cyan developer bias.
9. Step 8 is repeated for Magenta and
Yellow.
10. Repeat Steps 3, 4 and 5 to recheck
toner concentration.
DocuPrint [NC60]
and
against