Airflow; Declaration Of Ibm Product Noise Emission Values; Operator And Service Clearance - IBM 4247 A00 User Manual

Airflow
The printer uses two fans to cool its internal parts. Ensure that you do not block the
air vents. Lack of correct cooling and ventilation can cause printer failures and
improper operation.

Declaration of IBM Product Noise Emission Values

The following tables show the noise emission values for the 4247 Printer.
Table 19. 4247 Printer Model A00
Impulsive Noise
No
Table 20. Sound Emission Levels - 4247 Standard Covers
Sound Emission Category
LWAd
<LpA>m
Table 21. Sound Emission Levels - Automatic Sheet Feeder Covers
Sound Emission Category
LWAd
<LpA>m
Notes:
1. LWAd is the declared sound power emission level for a production series of
2. <LpA>m is the mean value of the space-averaged sound pressure emission
All measurements are made in accordance with the American National Standards
Institute (ANSI) S12.10 and reported in conformance with the International
Organization for Standardization (ISO) 9296.

Operator and Service Clearance

You must be able to reach the front and rear of the printer to operate the printer.
Your service representative must be able to access all sides of the printer while
performing maintenance. Use Table 18 on page 161,and Figure 49 on page 167 (or
Figure 50 on page 168 if your printer has the Automatic Sheet Feeder installed) to
determine the clearance you need for your printer, and to select the location for
your printer.
Symbols that appear in specification drawings are defined in the following table.
Symbol
––––
166
4247 Printer Model A00 User's Guide
machines.
levels at the one-meter positions for a production series of machines.
Depicts
Required clearance
Signal cable entry/exit
Prominent Discrete Tones
No
Operating
7.0 bels
56 dB
Operating
7.3 bels
60 dB
Idling
3.9 bels
24 dB
Idling
4.0 bels
25 dB