Scanner Unit; Laser Unit; Fusing Unit; Paper Feed - Ricoh D158 Service Manual

Lanier, ricoh, savin

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General Cautions

4.1.4 SCANNER UNIT

1. Use alcohol or glass cleaner to clean the exposure and scanning glass. This will reduce the

static charge on the glass.

2. Use a blower brush or a water-moistened cotton pad to clean the mirrors and lenses.

3. Make sure to not bend or crease the exposure lamp's ribbon cable.

4. Do not disassemble the lens unit. This will cause the lens and copy image to get out of focus.

5. Do not turn any of the CCD positioning screws. This will put the CCD out of position.

1. Do not loosen or adjust the screws securing the LD drive board on the LD unit. This will put

the LD unit out of adjustment.

2. The polygonal mirror and F-theta lens are very sensitive to dust.

3. Do not touch the toner shield glass or the surface of the polygonal mirror with bare hands.

1. After installing the fusing thermistor, make sure that it is in contact with the hot roller and that

the roller can rotate freely.

2. Be careful to avoid damage to the hot roller stripper pawls and their tension springs.

3. Do not touch the fusing lamp and rollers with bare hands.

4. Make sure that the fusing lamp is positioned correctly and that it does not touch the inner

surface of the hot roller.

1. Do not touch the surface of the paper feed rollers.

2. To avoid misfeeds, the side and end fences in each paper tray must be positioned correctly so

as to align with the actual paper size.

You must run SP2-801-001(Developer Initialization) to initialize the TD sensor after you

install a new PCU. After starting initialization, be sure to wait for it to reach completion

(wait for the motor to stop) before you re-open the front cover or turn off the main switch.

If the optional tray heater or optics anti-condensation heater is installed, keep the

machine's power cord plugged in even while the main switch is off, to keep the heater(s)

D158/D159/D160/D161/D170

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