3. Start unit printing at 3cm/minute and slide print head towards case rear until
print density is acceptable. Refer to 8.4 for setup test pattern.
4. Remove mains supply and tighten head support plate screws to 35cNm.
10.13
Stepper Motor Removal
1. Disconnect stepper motor connector. Remove print head assembly as
detailed in 7.10 and cable ties to printhead securing plate.
2. Remove stepper motor assembly clear of monitor. Remove stepper motor
mounting plate screws and remove mounting plate.
10.14
Stepper Motor Refitting
1. Fit Stepper motor to mounting plate, passing gear through mounting bracket
noting cable orientation and tighten screws to 60cNm.
2. Insert stepper motor assembly to base, fit earth lead, motor support plate and
screws, tighten loosely. Secure cables using cable ties.
3. Fit print head as per 7.11 and close paper tray.
4. Align motor gears with roller gears ensuring gears mesh allowing small
amount of backlash, see fig 14.
5. Tighten screws to 60cNm.
Fit stepper motor connector and align print head as per 7.12.
42
Issue: 2 Draft
Rev: a
614365
Fig 14 Gear Alignment
