Service manual

3-4
JCR3 (Print Head 3/3 [Carriage Unit])
No. Signal name Function Input/Output
1 to 8 VH2 Head drive power supply 20V Out
9 VDD Head logic drive power supply 3.3V Out
10 DIK Diode sensor cathode Out
11 DIA2 Diode sensor anode 3 In
12 GND GND -
13 to 20 GNDH2 GND -
JPOW1 (AC Adapter)
No. Signal name Function Input/Output
1, 2 VH Head power supply In
3 GND GND -
4, 5 VM Motor power supply In
6, 7 GND GND -
8 VH_REMOTE VH control signal Out
9 VM_SLEEP VM control signal Out
10 +3.3V Logic power supply +3.3V In
JPAN1 (Operation Panel Ass’y)
No. Signal name Function Input/Output
1 +3.3V Operation panel power supply +3.3V Out
2 GND Operation panel GND -
3 POW_SW Operation panel Power SW In
4 RESUME_SW Operation panel Resume SW In
5 LED_RES Operation panel Resume LED drive signal Out
6 LED_POW Operation panel Power LED drive signal Out
JPAN2 (Operation Panel Ass’y)
No. Signal name Function Input/Output
1 FG DSC-DIRECT GND -
2 VBUS DSC-DIRECT VBUS power supply Out
3 D- DSC-DIRECT USB: D- signal Bus
4 D+ DSC-DIRECT USB: D+ signal Bus
5 GND DSC-DIRECT GND -
JUSB1 (USB I/F)
No. Signal name Function Input/Output
1 VBUS USB: VBUS power supply Out
2 D- USB: D- signal Bus
3 D+ USB: D+ signal Bus
4 GND USB: GND -
5 to 9 GND GND -
JUSB2 (USB I/F)
No. Signal name Function Input/Output
1 VBUS USB: VBUS power supply Out
2 D- USB: D- signal Bus
3 D+ USB: D+ signal Bus
4 GND USB: GND -
5 to 9 GND GND -