HP LASERJET ENTERPRISE M775dn - Page 213

General timing chart
Figure 2-33 General timing chart (1 of 2)
Two consecutive prints on letter paper
1 Print command 2
Cassette pickup solenoid
3 Top of paper sensor
4
Fuser output sensor
5 Top of paper signal
6
Y video signal
7
M video signal
8 C video signal 9 K video signal
10 Scanner motor 11 Pickup motor
12 ITB motor
13
Fuser motor
14
Drum motor
15 Developer motor
16 Developer disengagement motor 23 K developing bias
20 Y developing bias
21 M developing bias
LSTR STBY
22
C developing bias
PRINT
19
K primary charging bias
WAIT STBY INTR
17 Fuser heater 18 Y/M/C primary charging bias
Power ON
ENWW
Tools for troubleshooting
181