Apple Color Onescanner.B Service Manual

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Service Source

Apple Color OneScanner/B

Service Source

Speciﬁcations

Color OneScanner/B

Specifications Characteristics - 1

Characteristics

Scanner T ype

Maximum Document Size

Speed

Grayscale

Dropout Color

Interface

Flatbed

8.5 by 14 in.

13 ms/line at 300 dpi

256 levels (8 bits per pixel)

White

SCSI

Specifications Electrical - 2

Electrical

Line Voltage

Frequency

120 VAC ±10% (US and Canada) 100/120/200/220/240 VAC ± 10% (Universal)

58–62 Hz (US and Canada) 48–62 Hz (Universal)

Specifications Physical - 3

Physical

Size

Weight

Height: 4.3 in. (110 mm) Width: 13.4 in. (340 mm) Depth: 21.5 in. (545 mm)

23 lb. (10.45 kg)

Specifications Environmental - 4

Environmental

Operating Temperature

Storage Temperature

Relative Humidity

50–104°F (10–40°C)

–40 to 117°F (–40 to 47°C)

20–95% noncondensing

Service Source

Troubleshooting

Color OneScanner/B

Troubleshooting General/ - 1

General

The Symptom Charts included in this chapter will help you diagnose specific symptoms related to your product. Because cures are listed on the charts in the order of most likely solution, try the first cure first. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next cure. (Note: If you have replaced a module, reinstall the original module before you proceed to the next cure.)

If you are not sure what the problem is, or if the Symptom Charts do not resolve the problem, refer to the Flowchart for the product family.

For additional assistance, contact Apple Technical Support.

Troubleshooting Symptom Charts /LED Error Messages - 2

Symptom Charts

LED Error Messages

LED blinks once Replace logic board.

LED blinks twice 1 Clean glass cover assembly.

2 Check lamp holder connector. 3 Check that label of fluorescent lamp faces down into lamp

holder. 4 Replace lamp. 5 Replace optical assembly.

Troubleshooting Symptom Charts /LED Error Messages - 3

LED blinks three times

Power-on self test does not find error (LED does not blink); scanner is not capturing image correctly

1 Check motor carrier assembly. 2 Check drive belt assembly. 3 Check gears and pulleys. 4 Check limit switch assembly. 5 Check home position switch assembly. 6 Check carrier shaft; it should not be bent.

Replace optical assembly.

Troubleshooting Symptom Charts /Miscellaneous - 4

Miscellaneous

Power lamp not on; machine dead

Optical assembly does not move

1 Plug in power cord. 2 Close lamp cover and turn button clockwise. 3 Check interlock switch with multimeter. Replace switch if it

is not opening and closing. 4 Check fuse FU1 on power supply board. 5 Replace logic board. 6 Replace power supply.

1 Check SCSI connection. 2 Check SCSI ID. 3 Check and clean or replace belt. 4 Check belt tension. Belt should be tight with no slack. 5 Check for damage to gears or buildup of foreign material.

Clean or replace gears.

Troubleshooting Symptom Charts/Miscellaneous - 5

Optical assembly moves once and then does not move

Scanning program crashes during middle of scanning operation, or computer hangs

1 Check limit switch for continuity. 2 Check drive belt. 3 Check drive belt pulleys. 4 Check carrier motor.

1 Verify version of scanner application software. 2 Verify that scanner driver is present. 3 Verify version of scanner driver. 4 Check SCSI connection. 5 Verify that host computer has enough memory. 6 Verify that system software is version 7.0 or above. 7 Verify SCSI ID of scanner. 8 Verify scanner SCSI termination. 9 Turn on scanner and reboot computer. 10 Replace logic board.

Troubleshooting Symptom Charts/Miscellaneous - 6

Fluorescent lamp won’t light or is dim

Scan command does not execute

1 Check lamp holder connector. 2 Check that label of fluorescent lamp faces down into lamp

holder. 3 Replace lamp. 4 Replace optical assembly. 5 Replace logic board.

1 Check external cable connections. 2 Reset SCSI select switch on scanner to unused device

number. Scanner is factory-preset at 2. Do not use 7, 8,

9, or 0. 3 Check that SCSI cable terminates correctly. 4 Replace logic board.

Troubleshooting Symptom Charts /Miscellaneous - 7

Image not clean; dark or light spots

Scanning performed, but image doesn’t reach host computer

Incorrect image on host screen

1 Clean glass with water and soft, lint-free cloth. 2 Adjust contrast or threshold settings on application. 3 Replace lamp. 4 Replace optical assembly. 5 Replace logic board.

1 Check interface connector. 2 Replace optical assembly. 3 Check fuse FU1 on logic board. 4 Replace logic board.

1 Clean glass with water and soft, lint-free cloth. 2 Replace optical assembly.