Ricoh A072 Technical Bulletin

Technical Bulletin No. RTB-001

SUBJECT: Manual Correction DATE: Apr. 15, ’92

PAGE: 1 of 3

PREPARED BY: S. Mano
CHECKED BY:

CLASSIFICATION:

Action Required
Troubleshooting
Retrofit Information

Please correct your service manual as follows:

Revision of service manual
Information only
Other

FROM: Copier Technical Support Section

MODEL: NC-X

Page 1-23

Please correct the description regarding PCB9 (Transfer drum Interface PCB).

Incorrect: Interfaces the transfer drum cleaning motor/solenoid and the wire

cleaner motor with the transfer power pack

Correct: Interfaces the transfer drum cleaning motor/solenoid with the

transfer power pack

Page 2-54, page 4-24 and Check Point for Installation Procedure (Water
Proof)

Please correct the normal data for the Toner Density sensor (TD sensor) gain data
(monitored by SP64-8).

Incorrect: 130 ±10
Correct: 142 ±10

The TD sensor gain data of the NC-X differs from that of the NC11 because developer
quantity is different (NC11:1200g, NC-X:1000g).

Page 2-60

Please eliminate the fourth paragraph (The color development unit fan and ozone filter are
located underneath the unit) because there is no fan there.

Page 2-85 second sentence from the last.

Incorrect: +5kV AC
Correct: 5kV AC

Page 4-25

SP mode No.70-7 does not exist on the NC-X, so please delete description regarding SP
No.70-7. Black developer is manually collected as described in page 5-39 to 5-40.

Technical Bulletin No. RTB-001

70 to 80mm

SUBJECT: Manual Correction DATE: Apr. 15, ’92

PAGE: 2 of 3

Page 4-35

Please correct the name of sensors No.7,8 and 19.

Incorrect Correct
No.7 Platen Cover Lead Switch Platen Cover Closed Switch
No.8 Platen Position Sensor Platen Cover Position Sensor
No.19 LCT Sensor LCT Tray Down Sensor

Page 5-64 (Step 6)

Paper spacers [A] should be set at 70mm to 80 mm from the leading edge of the transfer
sheet.

Incorrect: 60 to 70mm from the leading edge
Correct: 70 to 80 mm from the leading edge

Incorrect illustration

60 to 70mm

Page 5-105

In step 3-3), there is a spelling mistake.

Correct illustration

Incorrect: importing
Correct: Imputing

Technical Bulletin No. RTB-001

SUBJECT: Manual Correction DATE: Apr. 15, ’92

PAGE: 3 of 3

Page 1 of 3rd Paper Feed Unit section

Please correct the fourth item of the specification (Power Source).

Incorrect: 100V, 50/60 Hz, 0.6 A (From Copier)
Correct: DC 5V, 24V (From Copier)

Page 23 of Document Feeder section

Please correct the number of screws in the Installation procedure step 1-5).

Incorrect: Right cover [F] (2 screws)
Correct: Right cover [F] (4 screws)